Researcher Profile and Settings

Master

Affiliation (Master)

• Faculty of Engineering　Division of Environmental Engineering　Division of Environmental Engineering

Affiliation (Master)

• Faculty of Engineering　Division of Environmental Engineering　Division of Environmental Engineering

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Profile and Settings

Profile and Settings

• Name (Japanese)

  Ishii

• Name (Kana)

  Kazuei

• Name

  200901010390843961

Alternate Names

http://labs.eng.hokudai.ac.jp/labo/smcsp/
https://smcs.eng.hokudai.ac.jp/english.html

Achievement

Research Interests

• Renewable energy   Bioenergy   Final Disposal System   Biomass   リサイクルシステム   土壌・地下水汚染   廃棄物管理   Recycling system   soil and groundwater pollution   Waste Management   

Research Areas

• Environmental science/Agricultural science / Environmental dynamics
• Environmental science/Agricultural science / Environmental policy and society
• Environmental science/Agricultural science / Environmental impact assessment
• Social infrastructure (civil Engineering, architecture, disaster prevention) / Safety engineering
• Social infrastructure (civil Engineering, architecture, disaster prevention) / Social systems engineering
• Environmental science/Agricultural science / Environmental materials/recycling technology
• Environmental science/Agricultural science / Environmental load reduction/restoration technology
• Social infrastructure (civil Engineering, architecture, disaster prevention) / Civil engineering (environmental systems)

Research Experience

• 2020/10 - Today Hokkaido University
• 2018/04 - Today Hokkaido University Faculty of Engineering Professor
• 2010/04 - 2018/03 Faculty of Engineering, Hokkaido University Associate Professor
• 2005 - 2007 大学院工学研究科北方圏環境政策工学専攻循環計画システム研究室 助手
• 2005 - 2007 Research Associate,Graduate School of Engineering, Division of Engineering and Policy for Cold Regional Environment, Laboratory of Sound Material-cycle Systems Engineering
• 2007 - 大学院工学研究科北方圏環境政策工学専攻循環計画システム研究室 助教
• 2007 - Assistant Professor,Graduate School of Engineering, Division of Engineering and Policy for Cold Regional Environment, Laboratory of Sound Material-cycle Systems Planning
• 1997 - 2005 大学院工学研究科環境資源工学専攻廃棄物管理工学分野 助手
• 1997 - 2005 Research Associate,Graduate Shool of Engineering, Division of Environemt Resource Engineering, Labratory of Solid Waste Resources Managment Engineering

Education

• 1995/04 - 1997/03  Graduate School of Engineering, Hokkaido Universit  Doctoral Course of Sanitary Engineering
• 1994/04 - 1995/03  Graduate School of Engineering, Hokkaido Universit  Division of Sanitary Engineering
•        - 1993  Hokkaido University  School of Engineering
•        - 1993  Hokkaido University  Faculty of Engineering

Committee Memberships

• 2020/05 - Today   Japan Society of Material Cycle and Waste Management   Director

Awards

• 2022/10 土木学会環境システム委員会 優秀論文賞
   炭素・窒素循環から見るバイオガスプラント導入の環境効果の評価手法の提案 

  受賞者: 和田年弘、本間隆、落合知、石井一英、古市徹
• 2012/10 The 7th Asian Pacific Landfill Symposium Winner of Best Paper
   A New Concept of Final Disposal Systems for MSW Management Considering Storage of Recyclable Materials and Disaster Waste 

  受賞者: ISHII Kazuei
• 2008 平成19年度廃棄物学会奨励賞
  
• 2007 第18回廃棄物学会研究発表会優秀ポスター賞
  
• 2003/05 廃棄物学会 廃棄物学会論文賞
   廃棄物起因の土壌・地下水汚染現場への数値 シミュレーションと比抵抗法の適用 

  受賞者: 石井 一英

Published Papers

• Applying membrane separation technology for integrating high strength cow manure digestate treatment and microalgae cultivation in an open reactor system

  Jumana Al-Mallahi, Takumi Nakashima, Kazuei Ishii, Satoru Ochiai, Shiho Ishikawa

  Journal of Material Cycles and Waste Management 1438-4957 2023/08/09 [Refereed]
  
• Static supply of different simulated flue gases for native microalgae cultivation in diluted cow manure digestate

  Jumana Al-Mallahi, Kazuei Ishii, Masahiro Sato, Satoru Ochiai

  Journal of Environmental Management 335 117557 - 117557 0301-4797 2023/06 [Refereed]
  
• Prediction of leachate quantity and quality from a landfill site by the long short-term memory model

  Kazuei Ishii, Masahiro Sato, Satoru Ochiai

  Journal of Environmental Management 310 114733 - 114733 0301-4797 2022/05 [Refereed]
  
• Attempts to alleviate inhibitory factors of anaerobic digestate for enhanced microalgae cultivation and nutrients removal: A review

  Jumana Al-Mallahi, Kazuei Ishii

  Journal of Environmental Management 304 114266 - 114266 0301-4797 2022/02 [Refereed]
  
• 炭素・窒素循環から見るバイオガスプラント導入の環境効果の評価手法の提案

  和田年弘, 本間隆, 落合知, 石井一英

  土木学会論文集G 77 (6) II_171 - II_181 2021/10 [Refereed]
  
• 牛ふんバイオガスプラントが地域環境・社会にもたらす効果の定性評価

  谷口裕太郎, 落合知, 石井一英, 佐藤昌宏

  土木学会論文誌 76 (6) II_35 - II_46 2020/10 [Refereed]
  
• 廃棄物最終処分場における長寿命化及び気候変動への問題対応の実態把握

  小山文敬, 石井一英, 阿賀裕英, 佐藤昌宏, 落合知

  土木学会論文誌 76 (6) II_23 - II\34 2020/10 [Refereed]
  
• ACTUAL SITUATIONS OF PROBLEMS AND MEASURES ON LIFE-PROLONGATION AND CLIMATE CHANGES IN LANDFILL SITES

  Fumitaka KOYAMA, Kazuei ISHII, Hirohide AGA, Masahiro SATO, Satoru OCHIAI

  Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 76 (6) II_23 - II_34 2020
• Improvement of Biomass Fuel Properties for Rice Straw Pellets Using Torrefaction and Mixing with Wood Chips

  Ryosuke Kizuka, Kazuei Ishii, Satoru Ochiai, Masahiro Sato, Atsushi Yamada, Kouei Nishimiya

  Waste and Biomass Valorization 2020 [Refereed]
  
• The Effectiveness of E-money Incentive Mechanism in Promoting Separation of Recyclables at Source in Malaysia

  Faisal Bin Arifin, Kazuei Ishii, Masahiro Sato, Satoru Ochiai

  Journal of Material Cycles and Waste Management 2020 [Refereed]
  
• Strategy of landfilled waste reduction by a distributed materials recovery facility system in Surabaya, Indonesia

  Afif Faiq Muhamad, Kazuei Ishii, Masahiro Sato, Satoru Ochiai

  Waste Management & Research 2020 [Refereed]
  
• 中小自治体の中長期廃棄物管理シナリオに関する研究－富良野生活圏を対象にして－

  高橋 恵介, 石井 一英, 阿賀 裕英, 佐藤 昌宏, 落合 知

  土木学会論文集G 75 (6) 2019/10 [Refereed]
  
• Characteristics of wood pelletss mixed with torrefied rice straw as a biomass fuel

  Ryosuke Kizuka, Kazuei Ishii, Masahiro Sato, Atsushi Fujiyama

  International Journal of Energy and Environmental Engineering 10 357 - 365 2019 [Refereed]
  
• A three-dimensional simulation of 1,4-dioxane contamination in an aquifer with a complex hydrogeological setting – application of a coupled estimation method

  ISHII Kazuei, fujiyama Atsushi, Sato Masahiro, Furuichi Toru

  Journal of solid waste technology and management 2019 [Refereed][Not invited]
  
• 実態調査に基づく分別収集導⼊前後の⼀般廃棄物処理システムの評価−茨城県⼟浦市を対象として−

  勝見 慧, 藤山 淳史, 小泉 達也, 佐藤 昌宏, 石井 一英

  土木学会論文集G 74 (6) 39 - 50 2018 [Refereed][Not invited]
  
• strategies of Waste Reduction in Small-Scale Municipalities- A case study in SHIMUKAPPU Village -

  山中 元貴, 石井 一英, 藤山 淳史, 佐藤 昌宏

  Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 74 (6) II_27 - II_38 2018 [Refereed][Not invited]
  
• Experimental Study of Biogas Generation Potential for Sludge from a Disposer Waste Water Treatment System for Food Waste

  藤山 淳史, 石井 一英, 佐藤 昌宏, 丑丸 進太郎

  Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 一般社団法人 廃棄物資源循環学会 28 257 - 257 2017 

  大都市部を中心にディスポーザー排水処理システムが設置されたマンションがあり、そのディスポーザー処理槽からは定期的に汚泥が回収され処理されているが、有効には活用されずし尿処理施設などで処理されているのが現状である。本研究では、汚泥の有効活用方法としてバイオガス化に着目し、バイオガス化の検討を行うための基礎的データを得ることを目的に、ディスポーザー処理槽から汚泥を回収しバッチ試験を行った。まず一つ目の実験では、種汚泥100mLに最初沈殿槽汚泥を6gまたは最終沈殿槽汚泥を8.64g封入した程度では、発酵阻害は起こらないことを確認した。続いて二つ目の実験では、３つのマンションのディスポーザー処理槽汚泥を用いてバッチ試験を行い、VSあたりのバイオガス発生ポテンシャルを把握した。
• Survey results on actual results of actual leakage detection system and operation status

  EBIHARA MASAAKI, KOBAYASHI TSUYOSHI, ISHII KAZUEI

  Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 一般社団法人 廃棄物資源循環学会 28 425 - 425 2017 

  最終処分場の漏水検知システムは、幾つかの種類が存在し、最長20年を超えて稼働しているシステムもある。現在200箇所を超える処分場に導入されているが、その導入状況や稼働状況等はメーカ毎に知りえた範囲内で把握しているだけで、全体像はわかっていない状況であった。そこで我々は、この全体像を把握するために、まず漏水検知システムの導入実績を調査した。次に漏水検知システムを導入している最終処分場に対して、稼働状況の実態調査アンケートを実施すると共に、漏水検知システムを導入していない処分場に対しては、導入しなかった理由を確認するためのアンケート調査を実施した。この結果、漏水検知システムの導入状況を明らかにすると共に、横断的に稼働状況を概ね把握することができた。本報はこの概要についての報告である。
• An approach to Determination of Landfill Gases Monitoring Points considering an underground temperature distribution in a landfill site : A Case Study in a Closed System Disposal Facility-

  佐藤 昌宏, 垣内 大輝, 藤山 淳史, 石井 一英

  Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 一般社団法人 廃棄物資源循環学会 28 427 - 427 2017 

  The stabilization of waste in landfill should be evaluated considering whole gaseous emission and spatial distribution of gas emission. Therefore it is required that a method of monitoring of landfill gas need less work and can indicate where is gas emission more than that in the other. In this study,  focusing on underground temperature-rising with waste decomposition,  the objective is to suggest an approach to determination of landfill gases monitoring points according an underground temperature. Concentration of carbon dioxide gas in a closed system final disposal facility gradually increased as time goes by. The whole gaseous emission rate calculated by that increment was 0.564 mol per minute under the assumption of time-stable gas flux. The whole gaseous emission estimated by spatial static method (IDW). The estimated value was near to the calculated value in the case of determination of sampling points with considering underground temperature than without considering. In addition, the spatial estimation was not affected by measuring of gas flux at the center of 2 m grid over area of low ground temperature. These results indicated that diction of sampling points considering distribution of underground temperature was effective to estimate gaseous emission with less work in a landfill site.
• Study of relationship between watering and leachate quality in closed disposal facilities

  Ishii Kazuei, Aga Hirohide, Kitazaki Shunpei

  Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 一般社団法人 廃棄物資源循環学会 28 445 - 445 2017 

  クローズドシステム処分場においては、最近、液固比を目安に散水量が設定される場合が多くなってきているが、実クローズドシステム処分場におけるデータの解析例は少ない。本研究では、焼却残渣を受け入れしているクローズドシステム処分場を対象に、散水量、浸出水発生量及び浸出水水質、毎年度の埋立量に関するデータより、これまでの液固比と浸出水水質の関係性について考察する。その結果、COD（Mn）については、想定する液固比において散水すれば、十分な濃度低下は期待できるが、窒素と塩素イオンについては、想定液固比では困難なことを示した。特に窒素については、浸出水水質形成のメカニズムについて、今後、不燃物中の有機窒素の分解や有機系キレート剤を含めて検討する必要性を示した。
• 北海道酪農地域における物質循環・経済から見たバイオガスプラント導入効果に関する研究

  北島弘, 石井一英, 藤山淳史, 佐藤昌宏

  土木学会論文集G 73 (6) 53 - 62 2017 [Refereed][Not invited]
  
• 多主体多目的意思決定問題における評価者のグルーピングと変容の可視化に関する研究

  鷲尾卓, 藤山淳史, 石井一英, 佐藤昌宏

  土木学会論文集G 73 (6) 1 - 10 2017 [Refereed][Not invited]
  
• Logistics cost analysis of rice straw pellets for feasible production capacity and spatial scale in heat utilization systems: A case study in Nanporo town, Hokkaido, Japan

  Kazuei Ishii, Toru Furuichi, Atsushi Fujiyama, Shintaro Watanabe

  BIOMASS & BIOENERGY 94 155 - 166 0961-9534 2016/11 [Refereed][Not invited]
   

  Rice straw is a promising renewable energy source because it is abundantly available in Asia. This study conducted a case study of logistics cost analysis for rice straw pellets by considering all stages in the supply chain to define the main factors affecting the selling price of rice straw pellets: collection (job commission or employment of part-time workers), transportation, storage (vinyl greenhouses or storage buildings with larger capacity), pelletizing, and delivery to users with biomass boilers. The selling price was found to be strongly dependent on the production capacity because the investment cost for the pellet production facility had a significant effect of economies of scale. A production capacity of larger than 1500 t y(-1) is required for rice straw pellets to compete with wood pellets and fossil fuels in the studied Japanese context if the subsidy rate for the investment is 50%, part-time workers conduct the collection, and rice straw is stored in the storage buildings. Our sensitivity analysis also showed an economically feasible spatial scale: for example, rice straw should be collected within a 20 km radius and the users should be within a 38 km radius when the production capacity is 1500 t y(-1). In addition, other critical factors related to the collection of rice straw from the paddy fields and transportation of rice straw rolls to storage were identified as planning factors to further reduce the total logistics cost of rice straw pellets. (C) 2016 Elsevier Ltd. All rights reserved.
• Appropriate conditions for applying NaOH-pretreated two-phase olive milling waste for codigestion with food waste to enhance biogas production

  Jumana Al-Mallahi, Toru Furuichi, Kazuei Ishii

  WASTE MANAGEMENT 48 430 - 439 0956-053X 2016/02 [Refereed][Not invited]
   

  The high methane gas production potential of two phase olive milling waste (2POMW) makes its application to biogas plants in business an economical process to increase the productivity of the plants. The objective of this study was to investigate the appropriate conditions for the codigestion of NaOH-pretreated 2POMW with food waste. NaOH pretreatment can increase the methane production by increasing the soluble chemical oxygen demand (sCOD), but it may cause inhibition because of higher levels of alkalinity, sodium ion, volatile fatty acids and long chain fatty acids (LCFAs). Therefore, the first experimental phase of this study aimed to investigate the effect of different mixing ratios of 2POMW to food waste. A continuous stirred tank reactor experiment with different mixing ratios of 3%, 4.3%, 5.7% and 8.3% (2POMW: food waste) was conducted. NaOH pretreatment in the range of 6-20% was used. A mixing ratio up to 4.3%, when 10% NaOH pretreatment was used, caused no inhibition and increased methane production by 445.9 mL/g-VS(2POMW). For this mixing ratio an additional experimental phase was conducted with the 20% NaOH pretreatment as the 20% NaOH pretreatment had the highest sCOD. The methane gas production was increased by 503.6 mL/g-VS(2POMW). However, pH adjustment was required for applying this concentration of the high alkalinity 20% NaOH-pretreated 2POMW. Therefore, we consider using 10% NaOH pretreatment in a mixing ratio of 4.3% to be more applicable. The increase in methane gas production was correlated to the oleic acid concentration inside the reactors. The high oleic acid concentration of 61.8 mg/L for the 8.3% mixing ratio was responsible for the strong inhibition. This study showed that adjusting the appropriate mixing ratio of the NaOH-pretreated 2POMW could increase the electricity production of a reactor that regularly receives food waste. (C) 2015 Elsevier Ltd. All rights reserved.
• DEVELOPMENT OF MUNICIPAL WASTE TREATMENT SYSTEMS CONSIDERING EFFECT OF WASTE REDUCTION ON COSTS AND ENERGY EFFICIENCY - AN EFFECTIVENESS OF BIOGAS PLANTS ACCORDING TO A POPULATION SIZE -

  OKADA Shintaro, ISHII Kazuei, FUJIYAMA Atsushi, FURUITHI Toru

  Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 公益社団法人 土木学会 72 (6) 217 - 228 2016 [Refereed][Not invited]
   

   Because of municipal solid waste reduction according to depopulation or promotion of 3R, in the future, many local governments will face the difficulty in operation of municipal waste treatment systems, depending on their population size. On the other hand, biogas plants (BP) has been focused as a one of treatment systems for combustible waste in terms of effective energy recovery. So in this study, we investigated effective waste treatment systems in terms of an effective role of BP under the condition of waste reduction , especially focusing the efficiency of costs and energy. As a result, in small scale population, an operation of BP for only kitchen waste would be impossible. A mechanical-sieving and and dry-fermentation system in the middle scale would be effective if energy recovery is prioritized. A kitchen waste separation and wet- fermentation system in large scale would be cost-effective, although it might be necessary to consider a change of separate collection.
• DEVELOPMENT OF A BUSINESS PLANNING MODEL FOR BIOMASS ENERGY CONSIDERING LOCAL BENEFIT

  ANABUKI Ryo, ISHII Kazuei, FUJIYAMA Atsushi, FURUICHI Toru

  Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 公益社団法人 土木学会 72 (6) 257 - 268 2016 [Refereed][Not invited]
   

   There are many cases, in which introduction of renewable energy business has to be abandoned because of negative business balance. Independent distributed renewable energy can secure the energy required in case of emergency and can provide local benefits such as employment and local industry. However, such local benefits have not been evaluated quantitatively and have not been considered in business balance. This study developed a business planning model for renewable energy including biomass energy according to regional specific conditions, considering quantitative evaluation of local benefits. The model was applied to a case study, in which a local government manages a district heat supply system using woods, a biogas plant for cow manure and a photovoltaic power generation system. As a result, the local benefits such as energy security in case of emergency, employment and local industry found to be significant, although the monetary value of them depends on kinds of renewable energies. Add of the all local benefits to the business balance showed a positive value in the total balance of an account for the local government.
• STUDY ON ENERGY UTILIZATION OF RICE STRAW IN HOUSEHOLD WOOD PELLET STOVES: IMPROVEMENT OF COMBUSTION INHIBITION USING WOOD PELLETS MIXED WITH RICE STRAW

  HARIYA Shogo, ISHII Kazuei, SATO Masahiro, FUJIYAMA Atsushi, FURUICHI Toru

  Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 公益社団法人 土木学会 72 (6) 15 - 22 2016 [Refereed][Not invited]
   

   Energy utilization of rice straw with annual generation of about 9 millon ton has been required. Continuous combustion of rice straw pellets for a long time is difficult in household wood pellet stoves, which has been becoming popular, because the large amount of ash after combustion inhibits the continuous combustion easily. This study attempted to clarify a reason of the combustion inihibition and to investigate a possibility to use wood pellets mixed with rice straw for household wood pellet stoves. As a result, combustion inhibition was caused not by a clinker formation, but by accumulation of large-particle ash with the small bulk density. The volume of accumulated ash in case of wood pellets mixed with rice straw was smaller than that in case of co-combution of wood pellets and rice straw pellets with the same ratio of rice straw to woods. In addition, when the mixiture ratio of rice straw to woods was 10%, the wood pellets mixed with rice straw was burned continuously for a loger time than rice straw pellets, whose compostion was 100% rice straw.
• STUDY OF INTEGRATED TREATMENT SYSTEMS OF ORGANIC WASTE IN A SLUDGE TREATMENT CENTER WITH A FOCUS ON ENERGY RECOVERY

  KATSUMI Kei, FUJIYAMA Atsushi, ISHI Kazuei, FURUICHI Toru

  Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 公益社団法人 土木学会 72 (6) 229 - 240 2016 [Refereed][Not invited]
   

   In the field of waste, resource use and energy recovery of waste is important. Especially, organic waste, such as kitchen waste and night soil sludge, have a high potential as circulation resources. This organic waste has been treated separately in incineration facilities and human waste treatment facilities up to now. But, as one of our future directions, we can consider them resources by using an integrated treatment system. This study examined an integrated treatment system in a sludge treatment center , to target a population in a small area. As a result, the integrated treatment system in the sludge treatment center was seen to be effective in terms of energy balance, environmental load and cost. Next this study considered the difference of treatment method, in particular comparing high-rate composting and me-thane fermentation. As a resulet, methane fermentation compared to high-ratee composting turned out to have high cost, but energy balance and environmental load became better.
• Mechanical and alkaline pretreatment of two phase olive mill waste for improving methane production

  Jumana Al-Mallahi, Toru Furuichi, Kazuei Ishii

  Journal of Solid Waste Technology and Management 41 (3) 315 - 324 1088-1697 2015/08/01 [Refereed][Not invited]
   

  A step of pretreatment prior to anaerobic digestion has been widely studied to enhance biogas production from lingocellulosic biomass. In this study, alkaline pretreatment and mechanical pretreatment by size reduction were tested on the two phase olive mill waste (TPOMW) in order to facilitate the degradation of lignocellulosic organic matter and thereafter the subsequent bioconversion to methane. For alkaline pretreatment, NaOH and CaO with concentrations in the range of 2.4 % to 30 % were tested. Following pretreatment, anaerobic digestion was conducted in batch mode for 26 days. Mechanical pretreatment did not increase the soluble compounds, measured as soluble chemical oxygen demand (sCOD), nor improved methane production. On the other hand, both CaO and NaOH were able to degrade part of the lignocellulosic organic matter to more easily degradable organic compounds. Especially NaOH was strong enough to solubilize part of the lignocellulosic organic matter sCOD was increased to 265 ± 49.5 g O2/kg after pretreatment with 30% NaOH compared with 74.1 g O2/kg for the untreated TPOMW. However, inhibition because of high initial alkalinity or high sodium ion concentration was recognized for high NaOH dosage. Six percent NaOH increased methane production by 20.3% and 11.2% compared with the untreated and the CaO pretreated TPOMW respectively. Although NaOH concentration of 6% was found to be reasonable for improving methane production without pH neutralization, considering a full scale reactor system receiving food waste as a main substrate and the NaOH-treated TPOMW as a co-substrate, the NaOH concentration of 20% might be optimum regarding the soluble COD concentration.
• Study on Technological Utility for Disposal and Recycling of CCA Wood

  阿賀裕英, 古市徹, 石井一英

  都市清掃 全国都市清掃会議 68 (326) 388 - 393 0285-4104 2015 [Refereed][Not invited]
  
• 汚濁物質収支モデルを用いた最終処分場の安定化の判定に関する研究～クローズドシステム処分場とオープン型処分場を対象として～

  池田勇太, 古市徹, 石井一英, 藤山淳史

  土木学会論文集G 71 (6) 405 - 414 2015 [Refereed][Not invited]
  
• ウエット系バイオマスを混合した家畜ふん尿バイオガス化プラントの処理特性と事業性の検討

  東祐樹, 古市 徹, 石井一英, 藤山淳史, 翁御棋

  土木学会論文集G 71 (6) 229 - 240 2015 [Refereed][Not invited]
  
• 水素ステーション普及のための下水処理施設のバイオガス化事業の新たな展開

  堀川 拳, 古市 徹, 翁御棋, 石井一英, 藤山淳史

  土木学会論文集G 71 (6) 43 - 52 2015 [Refereed][Not invited]
  
• Influence of moisture content, particle size and forming temperature on productivity and quality of rice straw pellets

  Kazuei Ishii, Toru Furuichi

  WASTE MANAGEMENT 34 (12) 2621 - 2626 0956-053X 2014/12 [Refereed][Not invited]
   

  A large amount of rice straw is generated and left as much in paddy fields, which causes greenhouse gas emissions as methane. Rice straw can be used as bioenergy. Rice straw pellets are a promising technology because pelletization of rice straw is a form of mass and energy densification, which leads to a product that is easy to handle, transport, store and utilize because of the increase in the bulk density. The operational conditions required to produce high quality rice straw pellets have not been determined. This study determined the optimal moisture content range required to produce rice straw pellets with high yield ratio and high heating value, and also determined the influence of particle size and the forming temperature on the yield ratio and durability of rice straw pellets. The optimal moisture content range was between 13% and 20% under a forming temperature of 60 or 80 degrees C. The optimal particle size was between 10 and 20 mm, considering the time and energy required for shredding, although the particle size did not significantly affect the yield ratio and durability of the pellets. The optimized conditions provided high quality rice straw pellets with nearly 90% yield ratio, >= 12 MJ/kg for the lower heating value, and >95% durability. (C) 2014 Elsevier Ltd. All rights reserved.
• 廃棄物処理システム改善のためのMBT導入による効果の検討―北広島市の可燃ごみ質の向上と最終処分場への負荷低減を目的とした事例―

  佐竹 佑太, 古市 徹, 翁 御棋, 石井一英, 藤山 淳史

  土木学会論文集G 70 (6) 11 - 21 2014 [Refereed][Not invited]
  
• 熱需要増加とバイオマス利活用を考慮した既存地域熱供給システムの事業性改善の検討－札幌市厚別地区をケーススタディとして－

  坂本 嵩延, 古市 徹, 石井 一英

  土木学会論文集G 70 (6) 45 - 56 2014 [Refereed][Not invited]
  
• Estimation of methane emission rate changes using age-defined waste in a landfill site

  Kazuei Ishii, Toru Furuichi

  WASTE MANAGEMENT 33 (9) 1861 - 1869 0956-053X 2013/09 [Refereed][Not invited]
   

  Long term methane emissions from landfill sites are often predicted by first-order decay (FOD) models, in which the default coefficients of the methane generation potential and the methane generation rate given by the Intergovernmental Panel on Climate Change (IPCC) are usually used. However, previous studies have demonstrated the large uncertainty in these coefficients because they are derived from a calibration procedure under ideal steady-state conditions, not actual landfill site conditions. In this study, the coefficients in the FOD model were estimated by a new approach to predict more precise long term methane generation by considering region-specific conditions. In the new approach, age-defined waste samples, which had been under the actual landfill site conditions, were collected in Hokkaido, Japan (in cold region), and the time series data on the age-defined waste sample's methane generation potential was used to estimate the coefficients in the FOD model. The degradation coefficients were 0.050 1/y and 0.062 1/y for paper and food waste, and the methane generation potentials were 214.4 mL/g-wet waste and 126.7 mL/g-wet waste for paper and food waste, respectively. These coefficients were compared with the default coefficients given by the IPCC. Although the degradation coefficient for food waste was smaller than the default value, the other coefficients were within the range of the default coefficients. With these new coefficients to calculate methane generation, the long term methane emissions from the landfill site was estimated at 1.35 x 10(4) m(3)-CH4, which corresponds to approximately 2.53% of the total carbon dioxide emissions in the city (5.34 x 10(5) t-CO2/Y). (C) 2013 Elsevier Ltd. All rights reserved.
• 不法投棄現場の1,4-ジオキサンのフィールドデータによる地下水汚染特性の解析

  西田憲一, 古市徹, 石井一英

  都市清掃 66 (312) 219 - 227 2013/03 [Refereed][Not invited]
  
• A needs analysis method for land-use planning of illegal dumping sites: A case study in Aomori-Iwate, Japan

  Kazuei Ishii, Toru Furuichi, Yukari Nagao

  WASTE MANAGEMENT 33 (2) 445 - 455 0956-053X 2013/02 [Refereed][Not invited]
   

  Land use at contaminated sites, following remediation, is often needed for regional redevelopment. However, there exist few methods of developing economically and socially feasible land-use plans based on regional needs because of the wide variety of land-use requirements. This study proposes a new needs analysis method for the conceptual land-use planning of contaminated sites and illustrates this method with a case study of an illegal dumping site for hazardous waste. In this method, planning factors consisting of the land-use attributes and related facilities are extracted from the potential needs of the residents through a preliminary questionnaire. Using the extracted attributes of land use and the related facilities, land-use cases are designed for selection-based conjoint analysis. A second questionnaire for respondents to the first one who indicated an interest in participating in the second questionnaire is conducted for the conjoint analysis to determine the utility function and marginal cost of each attribute in order to prioritize the planning factors to develop a quantitative and economically and socially feasible land-use plan. Based on the results, site-specific land-use alternatives are developed and evaluated by the utility function obtained from the conjoint analysis. In this case study of an illegal dumping site for hazardous waste, the uses preferred as part of a conceptual land-use plan following remediation of the site were (1) agricultural land and a biogas plant designed to recover energy from biomass or (2) a park with a welfare facility and an athletic field. Our needs analysis method with conjoint analysis is applicable to the development of conceptual land-use planning for similar sites following remediation, particularly when added value is considered. (C) 2012 Elsevier Ltd. All rights reserved.
• TUDIES ON PROPER TREATMENT AND RECYCLING SYSTEM FOR CCA-TREATED WOOD WASTE - FACT-FINDING SURVEY FOR DEMOLISHERS AND RECYCLING COMPANIES AND EXPERIMENTS FOR REMOVAL TECHNIQUE OF CCA COMPONENTS -

  AGA Hirohide, FURUICHI Touru, ISHII Kazuei, TANIKAWA Noboru

  PROCEEDINGS OF ENVIRONMENTAL AND SANITARY ENGINEERING RESEARCH Japan Society of Civil Engineers 69 (6) 391 - 400 2185-6648 2013 [Refereed][Not invited]
   

  Systematic investigations were performed in order to establish a proper treatment and recycling system for CCA-treated wood waste. At first, a fact-finding survey on separation of CCA-treated wood waste was conducted by questionnaire for demolishers, sampling and analysis for samples of recycled material, and literature survey. The result estimated that about 71% of CCA-treated wood waste was not separated, and that the detected CCA components in the samples were over the level which might cause hazardous effects. In addition, we also pointed out the problems on incineration or landfilling of CCA-treated wood waste which are recognized proper treatments at the present time, and suggested the necessity for thorough separation and recycling system of CCA-treated wood waste. So, assuming fully separation of CCA-treated wood waste, extracting conditions using dilute sulfuric acid were investigated for removal of CCA-components from CCA-treated wood waste. As the result, about 90% of CCA-components were removed from CCA-treated wood chips with 0.5NH₂SO₄ under 50°C for 8hours, suggesting possibility of reasonable recycling of wood material and metal components.
• ANALYSIS OF DAIRY FARMER NEEDS FOR PROPER TREATMENT AND EFFECTIVE UTILIZATION OF COW LIQUID MANURE BASED ON CONJOINT ANALYSIS: CASE ANALYSIS FOR EAST AREA IN HOKKAIDO

  TSUCHIYA Sho, FURUICHI Toru, ISHII Kazuei, WEN Yu-Chi, KIM SangYul

  PROCEEDINGS OF ENVIRONMENTAL AND SANITARY ENGINEERING RESEARCH Japan Society of Civil Engineers 69 (6) 329 - 336 2185-6648 2013 [Refereed][Not invited]
   

  Centralized biogas plants for proper treatment and effective utilization of cow liquid manure have contributions to improvement of environmental problem such as odor or lack of capacity in reservoirs and also have secondary effects on saving farmer's labor for transportation and application of manure, and on energy recovery. However, such biogas plants are not still introduced so much because of economic liability for dairy farmers. This study revealed actual situations of improper management of cow liquid manure by questionnaire survey for daily farmers in three regions, Hokkaido, where dairy farming is active. Conjoint analysis revealed that cow farmers consider "improvement of lack of capacity in reservoirs", "improvement of odor" and "improvement of excessive application of manure" as advantage. The evalution results were also reflected by differences in regional conditions, such as change in the number of cows and existence of crop or vegetable farmers. New strategies for spreading biogas plants are required considering regionally-different dairy farmer's needs for dairy farmers.
• SYSTEM ANALYSIS OF REGIONAL CIRCULATION SCENARIO BY BIOGAS AND REFUSED DERIVED FUEL - A CASE STUDY FOR SOYA AREA IN HOKKAIDO -

  TAKEBE Reo, FURUICHI Toru, ISHII Kazuei

  PROCEEDINGS OF ENVIRONMENTAL AND SANITARY ENGINEERING RESEARCH Japan Society of Civil Engineers 6 (69) 301 - 312 2185-6648 2013 [Refereed][Not invited]
   

  This study developed scenarios of regional circulation systems considering existing biogas plants for kitchen waste and new RDF plants for papers, plastics, textiles and woods (wastes for fuel) in Soya region, Hokkaido, which includes 5 municipalities such as Wakkanai city, Rishiri and Rebun islands, etc. The scenarios were compared in costs, recycling rate and the amount of landfilled waste with the current situation. As a result, a regional recirculation scenario, where the kitchen waste in Rishiri and Rebun islands is transported by container and ferry to the existing biogas plant in Wakkanai city, and the wastes for fuels in whole Soya region are transported by container to a new centralized RDF plant in Wakkanai city and the produced RDF is used as a heat source at the existing paper factory in Asahikawa city, was evaluated in terms of costs, recycling rate, the amount of landfilled waste and feasibility in Soya region.
• PROPOSAL OF ANINTEGRATED EVALUATION APPROACH ON FINAL DISPOSAL SITES WITH REGARD TO FUTURE RECLAMATION - A CASE STUDY OF MOERENUMA PARK, SAPPORO CITY

  WENG Yu-Chi, FURUITHI Toru, ISHII Kazuei

  PROCEEDINGS OF ENVIRONMENTAL AND SANITARY ENGINEERING RESEARCH Japan Society of Civil Engineers 69 (6) 313 - 320 2185-6648 2013 [Refereed][Not invited]
   

  The planning and mamagement of final disposal sites play an important role in proper treatment/disposalofwaste. Inrecent decades, several functions, e.g., the stockyard of potential resources, the creation of urban ecological habitats, the temporal stock for disaster waste, are particularly highlighted with regard to the life-cycle values of final disposal sites. In this sense, the development of final disposal sites is required for modern society. Nonetheless, the construction plans are often objected by residents, i.e., the NIMBY symdrom, and the remaining capacity is decresing to a great extent in most regions. In order to tackle this problem, it is important to make integrated evaluations on the functions of final disposal sites for key stakeholders. Thereby, this study made an attempt to propose an integrated evaluation approach to estimate environmental economic values of final disposal sites, with a particular emphasis on the reclamination of final disposal sites. Besides, the established approach was applied to a case study in Moerenuma Park in Sapporo city. For the further improvement of the environmental value of reclamination of case study area, concrete policy proposals could be made through the corporation among the key stakeholders, and thus the NIMBY symdrom could be eliminated.
• Numerical Simulation for Remediation Planning for 1, 4-Dioxane-Contaminated Groundwater at Kuwana Illegal Dumping Site in Japan Based on the Concept of Verified Follow Up

  Ramrav Hem, Toru Furuichi, Kazuei Ishii, Yu-Chi Weng

  Journal of Water Resource and Protection 5 699 - 708 2013 [Refereed][Not invited]
  
• A New Approach for Prediction of 1,4-Dioxane Distribution in Groundwater at an Illegal Dumping Site in Japan

  Ramrav Hem, Furuichi Toru, Ishii Kazuei, Yu-Chi Weng

  PROCEEDINGS OF ENVIRONMENTAL AND SANITARY ENGINEERING RESEARCH Japan Society of Civil Engineers 69 (6) 247 - 258 2185-6648 2013 [Refereed][Not invited]
   

  1,4-Dioxane migrates in groundwater with low sorption, low degradation, and low volatilization according to its physicochemical properties. 1,4-Dioxane migration therefore strongly depends on groundwater flow. Hydraulic conductivities, the most uncertain parameters and critical to groundwater flow, should be precisely determined. In a conventional approach, groundwater flow is estimated by calibration to optimize hydraulic conductivities, and then the calibrated groundwater flow is used for predicting 1,4-dioxane distribution considering other parameters such as source location and concentration. Although other parameters are properly set, 1,4-dioxane distribution cannot be always precisely predicted because the calibrated groundwater flow model does not perfectly present the real groundwater flow. Thus, the calibrated groundwater flow should be reevaluated to define the most suitable hydraulic conductivities considering 1,4-dioxane distribution.
   This study proposes a new approach with verification process of groundwater flow estimation for precisely predicting 1,4-dioxane distribution in groundwater. In this approach, several acceptable sets of hydraulic conductivities in term of groundwater heads are estimated by calibration and each groundwater flow is verified to match between calculated and observed 1,4-dioxane concentrations. The effectiveness of our new approach comparing to the conventional one was proved by a case study at an illegal dumping site in Japan where three aquifers have been contaminated by 1,4-dioxane for about 15 years. Eight acceptable sets of hydraulic conductivities of the three aquifers were determined by calibration using observed groundwater heads, and then verified to minimize the errors in 1,4-dioxane concentration. As a result, 1,4-dioxane distribution was predicted by our approach more precisely than the conventional approach.
• Proposal of an estimation method of the distribution of the waste layer and contaminated groundwater using an electrical resistivity survey for remediation of illegal dumping sites

  Takuya Wada, Toru Furuichi, Kazuei Ishii

  Journal of Solid Waste Technology and Management 38 (4) 279 - 290 1088-1697 2012/11 [Refereed][Not invited]
   

  Proper countermeasures are needed for remediation of illegal dumping sites of hazardous ma-terials such countermeasures should be based on the distribution of both the waste layer and contaminated groundwater. However, because of limitations in the number of borehole points, the precise distribution of the waste layer and contaminated groundwater cannot be enough de-termined only by conducting conventional bore exploration. On the other hand, a low-resistivity area obtained by the electrical resistivity survey can detect both the waste layer and contami-nated groundwater. However, distinguishing between the waste layer and contaminated groundwater is impossible by the resistivity survey alone because the resistivity is a relative value. This study proposes an estimation method of the distribution of both the waste layer and contaminated groundwater in illegal dumping sites so that the limitations of each investigation method could be compensated. Especially, this study introduces analysis of geological charac-teristics such as the permeability of soils around the waste layer to distinguish between the waste layer and contaminated groundwater. As a result of applying our method to three actual illegal dumping sites, the distribution of both the waste layer and contaminated groundwater was estimated separately.
• 3次元数値シミュレーションによる修復対策後の地下水流動変化に基づく1,4-ジオキサンの拡散予測−青森・岩手県境不法投棄事案の恒久対策を目指して−

  伊黒千早, 古市徹, 石井一英, 金相烈

  土木学会環境システム研究論文集 68 II265 - 272 2012 [Refereed][Not invited]
  
• 建設発生土の不適正処理事例と移動の実態からみる課題と対策の提案

  藤倉まなみ, 古市徹, 石井一英

  土木学会論文集G 68 (6) II165 - 176 2012 [Refereed][Not invited]
  
• 不法投棄現場のVOC汚染地下水の浄化プロセスの評価とその対策に関する研究

  西田憲一, 古市徹, 石井一英

  土木学会論文集G 67 (6) II489 - 500 2011 [Refereed][Not invited]
  
• 石狩湾新港地域バイオガス化システムの事業化に向けた検討−2項ロジットモデルを用いた食品廃棄物収集量推定手法の提案

  渡邊翔, 古市徹, 石井一英

  土木学会論文集G 67 (6) II501 - 512 2011 [Refereed][Not invited]
  
• 林地残材熱利用システムの事業規模の検討−足寄町を対象とした熱需要構造調査に基づく考察−

  本間隆之, 古市徹, 石井一英

  土木学会論文集G 67 (6) II415 - 426 2011 [Refereed][Not invited]
  
• 家畜ふん尿の循環利用プロセスの窒素動態評価モデルの開発

  新田省吾, 古市徹, 石井一英, 谷川昇

  土木学会環境システム研究論文集 38 401 - 412 2010 [Refereed][Not invited]
  
• 動脈系・静脈系連携によるエネルギー循環のための廃棄物バイオガス化システムの提案−石狩湾新港地域でのバイオガス直接利用システムの検討−

  五島典英, 古市徹, 石井一英, 谷川昇

  土木学会環境システム研究論文集 38 389 - 400 2010 [Refereed][Not invited]
  
• ホームページを用いた双方向コミュニケーション手法の有効性に関する考察−青森・岩手県境不法投棄問題を例として−

  石井一英, 古市徹, 長尾由香利, 谷川昇

  土木学会環境システム研究論文集 38 151 - 162 2010 [Refereed][Not invited]
  
• Study on a Convenient Method for Monitoring Hazardous Gas Based on Methane Determination during Waste Excavation at Reclamation Sites

  Tanikawa Noboru, Furuichi Toru, Ishii Kazuei, Iwasaki Kenji

  Journal of the Japan Society of Waste Management Experts Japan Society of Material Cycles and Waste Management 21 (1) 1 - 9 1883-5856 2010 [Refereed][Not invited]
   

  We propose a convenient method for monitoring hazardous gas based on the determination of ppm-level concentrations of CH₄ in ambient air. The proposed method can be applied during the excavation of landfill or dumped waste at reclamation sites, and we investigated its usability in an actual field. A portable open-path type analyzer and a retroreflector were used to determine the CH₄ concentration.
  The hazardous gas in landfill gas emitted from final disposal and illegal-dumping sites always contains CH₄ and H₂S occurring together, with the latter considered to be the main hazardous component. The maximum concentration ratio (H₂S/CH₄) at final disposal and illegal-dumping sites was expected to be about 10⁻¹. This study showed clearly that the ambient CH₄ concentration could be useful as an indicator for the monitoring of hazardous gas for the evaluation of potential danger.
  It was also shown that the proposed method could be useful for monitoring as a safety control at a reclamation site. This method works by comparing the measured ppm concentration levels of CH₄ with a management value that is decided by considering the maximum concentration ratio (of the hazardous gas that was most harmful at the site, such as H₂S/CH₄), its acceptable concentration and a safety ratio.
• Simultaneous Evaluation of Gas Emission Rate and Air Ventilation Rate in Closed System Disposal Facilities

  SUWA Yoshihide, KOTAKE Shigeo, FURUICHI Toru, TANIKAWA Noboru, ISII Kazuei, IWASAKI Kenji

  Earozoru Kenkyu 日本エアロゾル学会 25 (4) 337 - 343 0912-2834 2010 

  Recently, waste disposal facilities are constructed as closed systems (CS disposal facilities), because of consideration on the influence to the surrounding environment. In these facilities, gaseous compornents such as methane, carbon dioxide, and hydrogen sulfite, are emitted from the waste. Large ventilation is required to ensure the safety of personnel working in the facilities by keeping the gas concentrations below the admitted level. However, it is difficult to evaluate the total emission rate of these gases, and the actual air exchange rate may be different from the set value because of natural ventilation and channeling of air flow in large space such as CS disposal facilities. The authors have developed a method to evaluate both emission rate and air exchange rate through the measurement of gas concentration change. Furthermore, the effect of natural ventilation caused by outside wind and that caused by temperature difference were compared. Finally, the possibility of environmental improvement by natural ventilation was studied.
  
• Numerical model for a watering plan to wash out organic matter from the municipal solid waste incinerator bottom ash layer in closed system disposal facilities

  Kazuei Ishii, Toru Furuichi, Noboru Tanikawa

  WASTE MANAGEMENT 29 (2) 513 - 521 0956-053X 2009/02 [Refereed][Not invited]
   

  Bottom ash from Municipal solid waste incineration (MSWI) is a main type of waste that is landfilled in Japan. The long-term elution of organic matter from the MSWI bottom ash layers is a concern because maintenance and operational costs of leachate treatment facilities are high. In closed system disposal facilities (CSDFs), which have a roof to prevent rainfall from infiltrating into the waste layers, water must be supplied artificially and its quantity can be controlled. However, the quantity of water needed and how to apply it (the intensity, period and frequency) have not been clearly defined. In order to discuss an effective watering plan, this study proposes a new washout model to clarify a fundamental mechanism of total organic carbon (TOC) elution behavior from MSWI bottom ash layers. The washout model considers three phases: solid, immobile water and mobile water. The parameters, including two mass transfer coefficients of the solid-immobile water phases and immobile-mobile water phases, were determined by one-dimensional column experiments for about 2 years. The intensity, period and frequency of watering and other factors were discussed based on a numerical analysis using the above parameters. As a result, Our Washout model explained adequately the elution behavior of TOC from the MSWI bottom ash layer before carbonation occurred (pH similar to 8.3). The determined parameters and numerical analysis suggested that there is a possibility that the minimum amount of water needed for washing out TOC per unit weight of MSWI bottom ash layer could be determined, which depends on the two mass transfer coefficients and the depth of the MSWI bottom ash layer. Knowledge about the fundamental mechanism of the elution behavior of TOC from the MSWl bottom ash layer before carbonation occurs, clarified by this study, will help ail effective watering plan in CSDFs. (c) 2008 Elsevier Ltd. All rights reserved.
• Estimation of the biodegradation rate of 2,3,7,8-tetrachlorodibenzo-p-dioxin by using dioxin-degrading fungus, Pseudallescheria boydii

  Kazuei Ishii, Toru Furuichi, Noboru Tanikawa, Masaru Kuboshima

  JOURNAL OF HAZARDOUS MATERIALS 162 (1) 328 - 332 0304-3894 2009/02 [Refereed][Not invited]
   

  We are developing a bioreactor system for treating dioxin-contaminated soil or water using the dioxin-degrading fungus, Pseudallescheria boydii (P. boydii). In order to design the bioreactor system, this study estimated the rate at which R boydii degraded 2.3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD), which is the most toxic of the dioxins. The experimental results showed that P. boydii degraded 2,3,7,8-TCDD during its logarithmic growth phase, using glucose as a carbon source for growth, and that the growth of P. boydii was not affected by 2,3,7,8-TCDD concentrations usually found at contaminated sites. These results were then used to apply successfully an existing mathematical model to the degradation of 2,3,7,8-TCDD by P. boydii. This allowed an estimation of the rate of degradation of 2,3,7,8-TCDD by P boydii that can be used in the design of the bioreactor system. (C) 2008 Elsevier B.V. All rights reserved.
• An improved numerical design method for the remediation of contaminated sites based on sensitive tracer tests

  Kazuei Ishii, Toru Furuichi

  Journal of Solid Waste Technology and Management 35 (1) 35 - 50 1088-1697 2009 [Refereed][Not invited]
   

  We proposed an improved numerical design method for the remediation of contaminated sites based on a sensitive tracer test using rare earth metals such as holmium. The numerical design method was then applied to a real contaminated site, where immediate counter-measures were required because of detection of high arsenic concentration in a spring near a sea line outside the site. First, the sensitive tracer test using insium, europium and holmium under natural gradient condition revealed the groundwater flow path from the three suspected source points to the sea line, and analysis of the breakthrough curve for each tracer compounds determined the parameters, such as the hydraulic conductivity and dispersivity. A site-specific model representing the distribution of aercenic concentration in groundwater identified the source points, responsible for the contamination of the spring, and revealed that contaminated groundwater might flow out of the site boundary. A vertical wall was designed to prevent contaminants spreading from the site, and the change in the arsenic concentration after the construction of the vertical wall was predicted. The prediction had similar tendency to the actual decrease in arsenic concentration over a two-year monitoring phase. Consequently, our numerical design based on the sensitive tracer test predicted that the contamination level in the groundwater around the spring would continuously decrease toward remediation.
• Centralization of dairy farming facilities for improved economics and environmental quality

  Rokuta Inaba, Tohru Furuichi, Toshihiro Komatsu, Noboru Tanikawa, Kazuei Ishii

  WASTE MANAGEMENT 29 (1) 214 - 223 0956-053X 2009/01 [Refereed][Not invited]
   

  In Japan, most farm animal excreta has been stored directly on farmland. Runoff from this storage has often Caused water pollution. Biogasification is anticipated as an important technology to manage excreta properly, but complex problems hinder its introduction. Economic aspects of management have been especially difficult for dairy farmers. For this study, structural problems regarding introduction of biogasification into dairy farming were identified. Subsequently, a desirable system of dairy farming including biogasification was suggested, and an evaluation model of the financial balance was constructed. A case study using current financial balances of several systems of dairy farming wits evaluated using the constructed model and actual data. The systems were based on several policy alternatives including the suggested system mentioned above. Results show that a farmer can obtain sufficient income from a system featuring centralization of dairy housing and biogasification facilities and coordinated management by over six farmers. (C) 2008 Elsevier Ltd. All rights reserved.
• A fuzzy analytic network process for multi-criteria evaluation of contaminated site remedial countermeasures

  Michael Angelo B. Promentilla, T. Furuichi, K. Ishii, N. Tanikawa

  JOURNAL OF ENVIRONMENTAL MANAGEMENT 88 (3) 479 - 495 0301-4797 2008/08 [Refereed][Not invited]
   

  The Analytic Network Process (ANP) has been proposed to incorporate interdependence and feedback effect in the prioritization of remedial countermeasures using a hierarchical network decision model, but this approach seems to be incapable of capturing the vagueness and fuzziness during value judgment elicitation. The aim of this paper is to present an evaluation method using a fuzzy ANP (FANP) approach to address this shortcoming. Triangular fuzzy numbers (TFN) and their degree of fuzziness are used in the semantic scale as human judgment expressed in natural language is most often vague and fuzzy. The method employs the alpha-cuts, interval arithmetic and optimism index to transform the fuzzy comparative judgment matrix into set of crisp matrices, and then calculates the desired priorities using the eigenvector method. A numerical example, which was drawn from a real-life case study of an uncontrolled landfill in Japan, is presented to demonstrate the process. Results from the sensitivity analysis describe how the fuzziness in judgment could affect the solution robustness of the prioritization method. The proposed FANP approach therefore could effectively deal with the uncertain judgment inherent in the decision making process and derive the meaningful priorities explicitly from a complex decision structure in the evaluation of contaminated site remedial countermeasures. (C) 2007 Elsevier Ltd. All rights reserved.
• Experimental Studies on a Self-restoring Liner System that uses Colloidal Solution for Landfill Sites

  KAWAGUCHI Mitsuo, FURUICHI Toru, TANIKAWA Noboru, ISHII Kazuei

  Journal of the Japan Society of Material Cycles and Waste Management Japan Society of Material Cycles and Waste Management 19 (1) 72 - 79 1883-1648 2008 [Refereed][Not invited]
   

  We propose a self-restoring liner system that uses colloidal solution for landfill sites. The colloidal solution is filled in a pressurized state between a double liner. This prevents the leak of exudation water and immediately forms new liner around a damaged area when liner damage occurs. As a result, the function of the system is restored naturally.
  We carried out some basic experiments with colloidal solution of about 3-5% weight ratio. As a result of these experiments, we were able to confirm that mud cake and a penetration deposition layer were formed around a liner damage area by the colloidal solution and that the function of the system was restored.
  In addition, we confirmed the long-term continuity of colloidal particle dispersion in the colloidal solution and the fluidity performance of the colloidal solution in the double liner.
  From these experimental results, we were able to confirm the possibility of practical application of this liner system that uses colloidal solution.
• Study on Methane Generation, Environmental Burdens and Cost Effectiveness of Kitchen-waste Biogasification Facilities

  TANIKAWA Noboru, FURUICHI Toru, ISHII Kazuei, NISHIGAMI Kohei

  Journal of the Japan Society of Material Cycles and Waste Management Japan Society of Material Cycles and Waste Management 19 (3) 182 - 190 1883-1648 2008 [Refereed][Not invited]
   

  The characteristics of three currently operating kitchen-waste biogasification facilities, including the amounts of methane (CH₄) generated, their environmental burdens, and the economic efficiency of each were investigated. The amounts of CH₄ generated at kitchen-waste biogasification facilitis from untreated kitchen waste and from kitchen waste that which undesirable materials were removed ware 67-92m³_N/ton and 83-103m³_N/ton, respectively. This wade clear that evaluations of amounts of CH₄ generated from kitchen waste should consider CH₄ measurements errors and the ratios of undesirable materials and carbon in the kitchen waste.
  We found that concern for reduction of odor emissions was necessary and that the properties of the liquid fermentation residue depended on the change in the weight of the kitchen waste during treatment, the type of methane fermentation system used and the type of pretreatment method used on the liquid fermentation residue at kitchen-waste biogasification facilities.
  The amounts of electricity generated by the biogas were less than the total amounts of electricity consumed in the kitchen-waste biogasification facilities. The running costs, not including labor, of a facility that releases treated liquid fermentation residue into the sewage system and treats odor with the ordinary deodorization methods were estimated to be about 7500-9600yen/ton kitchen waste. In a facility that releases treated liquid fermentation residue into a river, treats odor with an advanced deodorization method and adopts a dual-fuel type generator, the running costs, not including labor, were estimated to be about 14500yen/ton of kitchen waste.
• Questionnaire Survey on the Effects of Installing Automatic-turning Composting Facilities and Biogasification Facilities for Treating Cattle Excreta in Hokkaido

  TANIKAWA Noboru, FURUICHI Toru, ISHII Kazuei, SHIMIZU Shinta

  Journal of the Japan Society of Material Cycles and Waste Management Japan Society of Material Cycles and Waste Management 19 (2) 141 - 149 1883-1648 2008 [Refereed][Not invited]
   

  A questionnaire survey was conducted of farmers in Hokkaido who had installed automatic-turning composting facilities (composting facilities) or biogasification facilities for treating cattle excreta. The purpose of this survey was to investigate the characteristics of the farmers and the advantages and disadvantages of these facilities, as well as to clarify the effects of their installation for the farmers.
  Most of the farmers who installed composting or biogasification facilities had large farms feeding about twice as many cattle as the average in Hokkaido. Their motivations for installing these facilities were determined to be, first, the need to solve cattle excreta management problems and, second, the existence of financial support for installing such facilities.
  Many farmers answered that the advantages of installing composting or biogasification facilities were that they could produce solid or liquid manure that was of high quality and low odor, and that the processing of cattle excreta in these facilities was stable even in areas with cold winters. They also said that the high construction and maintenance costs of the systems and the labor required for their operation were disadvantages. The construction and maintenance costs of the biogasification facilities were less than those of the composting facilities. There was only a small difference in the increased labor time required for management of cattle excreta between composting and biogas-ification facilities. The average increase in time for both types of facility was about 20%, although about twice as many cattle farmers who had installed biogasification facilities said that the process was laborious, compared with those who had installed composting facilities. The reason for this was assumed to be that farmers found the maintenance of the biogasification facilities more troublesome because they have many parts that need to be maintained and some repairs require experts.
• Development of bioreactor system for treatment of dioxin-contaminated soil using Pseudallescheria boydii

  Kazuei Ishii, Toru Furuichi

  JOURNAL OF HAZARDOUS MATERIALS 148 (3) 693 - 700 0304-3894 2007/09 [Refereed][Not invited]
   

  We developed a conceptual feasible design of bioreactor system for treatment of dioxin-contaminated soils that uses the dioxin-degrading fungus Pseudallescheria boydii (P. boydii) we had isolated. The dioxin-degradation conditions in bioreactor treatment was established by clarifying the inhibiting factors for the growth of P. boydii using both real contaminated and laboratory prepared soils mixed with fly ash. In addition, ethanol extraction process as post-treatment methods for the remaining dioxins, and the sterilization conditions of P. boydii, i.e., a weakly pathogenic fungus, in the residue was investigated. The better growth conditions of P. boydii were found to be chloride ion concentration of less than 10 g/L and a pH of less than 9. Under these conditions, 73 10 pg-TEQ/g of the soil was treated to 2860 pg-TEQ/g by the bioreactor process, and the dioxin concentration was further decreased to 580 pg-TEQ/g by ethanol extraction, resulting to total removal ratio of 92%. Furthermore, development of an effective sterilization method for living P. boydii in the residue increased the applicability of our bioreactor system for practical use in dioxin-contaminated sites. (C) 2007 Elsevier B.V. All rights; reserved.
• The Waste-to-Energy Trend in Europe

  FURUICHI Toru, TANIKAWA Noboru, ISHII Kazuei

  Material Cycles and Waste Management Research Japan Society of Material Cycles and Waste Management 18 (3) 172 - 181 0917-0855 2007/05/31 

  European countries are currently promoting Waste-to-Energy programs whereby various forms of energy can be produced from waste as a means of preventing global warming, reducing the amount of landfill waste, and developing alternative energy sources for oil.
  This paper focuses on European trends in energy recovery, with waste incineration and biogasification being used as measures for putting the Waste-to-Energy concept to work. The background of domestic waste management in Europe and laws regarding energy are introduced here, along with the current status of domestic waste management and utilization of renewable energy. The paper also includes reporting on three biogasification facilities and a mechanical-biological treatment facility, actually doing Waste-to-Energy in Europe at present. The paper also suggests ways in which the promotion of Waste-to-Energy can be taken up in Japan.
• A Comprehensive and Systematic Approach to Addressing Illegal Dumping of Waste

  FURUICHI Toru, TANIKAWA Noboru, ISHII Kazuei, KIM SangYul

  Material Cycles and Waste Management Research Japan Society of Material Cycles and Waste Management 18 (2) 77 - 83 0917-0855 2007/03/31 

  A new concept is presented for addressing illegal dumping, with an aim to establish a sound material-cycle society. Firstly, the background and issues relating to the illegal dumping of waste are discussed. Secondly, the paper introduces the Laboratory of Illegal Dumping Engineering Solution (IDES) at Hokkaido University which also address these problems. Lastly, issues such as final disposal system and "community-based land use" (Kankyo Saisei) within the framework of a "sound and sustainable material-cycle society" (Junkangata Kyosei Shakai) are described.
  In order to address illegal dumping problems and promote "sound sustainability" (Kyoseika) final disposal system, it is necessary to take a comprehensive and systematic approach that not only considers engineering (i.e., scientific investigation, prediction and analysis tools, integrated treatment technology for restoration, etc.), but also takes into account the social aspects (i.e., social and economic angles, environmental education, participation by local residents, etc.) . Cooperation among industries, universities, and governments is essential as well; and in this context, IDES is also expected to play a central role in supporting such wide cooperation.
• Study of the Applicability of Landfilled Waste Biogasification for Reclamation of Landfill Sites

  TANIKAWA Noboru, FURUICHI Toru, ISHII Kazuei, TODA Yuuki, KOMATSU Toshihiro, INABA Rokuta

  Journal of the Japan Society of Material Cycles and Waste Management Japan Society of Material Cycles and Waste Management 18 (1) 30 - 36 1883-1648 2007 [Refereed][Not invited]
   

  We investigated the characteristics of ordinary domestic wastes, including kitchen waste, that had been disposed of directly in a landfill site about 1.5 years and about 23 years earlier. We selected the most suitable of the materials in the landfill site for biogasification treatment and investigated the characteristics of the biogas that were produced by them were investigated by batch experimental tests.
  The proportion (by wet weight) of substances that could not be classified (residuals) was from 37% to 49% and the total proportion of waste that was classified as residuals, paper or plastics was between 80% and 90%. We considered the residuals and the paper to be the most suitable materials for biogasification treatment as they contained between 5% and 14% carbon while the plastics contained little easily degradable organic matter.
  We estimated the expected methane generation from the landfilled waste based on the results of the batch tests, assuming that the biogas was generated from only the paper and the residuals. The estimated values were significantly greater than the amount of methane typically generated from livestock excreta in biogasification facilities. This demonstrated that biogasification is a useful reclamation technology for landfill sites where ordinary domestic wastes, including kitchen waste, have been disposed of directly applied to landfill.
• Study of Continuous Monitoring of Dinitrogen Monoxide at Domestic Waste Landfill Sites

  Tanikawa Noboru, Furuichi Toru, Ishii Kazuei, Oda Kimiko

  Journal of Japan Society of Air Pollution Japan Society for Atmospheric Environment 42 (4) 253 - 259 1341-4178 2007 [Refereed][Not invited]
   

  We determined the atmospheric dinitrogen monoxide (N₂O) concentration in an open type domestic waste landfill site and a closed system type domestic waste landfill site by continuously using an extractive N₂O analyzer with infrared absorption (infrared N₂O analyzer) and a non-extractive open-path type N₂O analyzer, with infrared absorption (open-path N₂O analyzer), and investigated the increase of nitrous oxide concentration caused by landfill gas.
  When the wind was blowing at over 1-2 m/s, the N₂O concentrations ranged from about 0.30 to 0.33 ppm, and they were similar to ordinary concentrations in the urban area. However, when it was blowing at less than 1 m/s or was calm continuously, N₂O emitted from the landfill site could increase the atmospheric N₂O concentrations.
  The open-path type N₂O analyzer could show a rough change of N₂O concentration in a small-scale landfill site. Moreover, the N₂O generating speed per unit reclamation area in the landfill site, where residue of crushed incombustible and large size wastes were landfilled, was estimated to be about 60μg/m²·h from the measured increase rate of N₂O concentration.
• EVALUATION OF GARBAGE RECYCLING SCENARIOS BASED ON PUBLIC PREFERENCE USING CONJOINT ANALYSIS

  ISHII Kazuei, FURUICHI Toru, TERAYAMA Takeshi, TANIKAWA Noboru, INABA Rokuta

  Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) Japan Society of Civil Engineers 63 (4) 294 - 303 1880-6082 2007 [Refereed][Not invited]
   

  This study investigated a desirable garbage recycling system consisting attributes such as number of times for garbage collection, collection methods, charge and so on, using a conjoint analysis as multi-attribute utility analytical method, which differs from conventional questionnaire investigations to evaluate each attribute independently. Especially, the conjoint analysis was applied to residents in three local municipalities which are different in regional conditions such as the current treatment way of garbage, the urban form such as urban or rural areas, and the type of habitation. As the result, willingness to pay (WTP) for the number of garbage collection time was high for residents living in collective housings. In a large city, biogasification which can recover energy tended to be more desirable than composting.
• Study of the Appropriate Treatment of Livestock Excreta by Cattle Farms in Hokkaido using Questionnaire Surveys

  TANIKAWA Noboru, FURUICHI Toru, ISHII Kazuei, SHIMIZU Shinta

  Journal of the Japan Society of Material Cycles and Waste Management Japan Society of Material Cycles and Waste Management 18 (6) 392 - 399 1883-1648 2007 [Refereed][Not invited]
   

  We have conducted a questionnaire survey in three areas of Hokkaido on the following two matters : 1) the present status of the compliance of cattle farmers with the livestock excreta control law, and 2) their awareness of automatic spiral agitation composting and biogasification facilities for livestock excreta, which are both effective facilities for achieving the purpose of the law. The survey results revealed problems and possible strategies in promoting the appropriate treatment of livestock excreta and its effective utilization.
  The ratio of cattle farmers using law-abiding composting facilities (LACF) as mere storage facilities for livestock excreta was about 30-60%. On the other hand, about 30% of farmers leave livestock excreta in the open before they spread it on their farms. Thus, it is important to further promote effective use of LACF and appropriate management of excreta outside of LACF.
  Most of the cattle farmers have no intention of constructing automatic turning type composting and biogasification facilities at this moment. Sufficient objective data about their merits, costs, and labor related to installation are important to promote their installation.
• 堆肥化とバイオガス化による牛ふん尿の臭気の低減効果の検討

  谷川昇, 古市徹, 石井一英, 西上耕平

  においかおり環境学会誌 38 (1) 13 - 17 2007 [Refereed][Not invited]
  
• Applicability of a Monitoring Method for Methane in the Ambient Air at Landfill Sites Using a Portable Open-path Analyzer

  TANIKAWA Noboru, FURUICHI Toru, ISHII Kazuei, MATSUO Koji, ISEKI Takaya

  Journal of the Japan Society of Material Cycles and Waste Management Japan Society of Material Cycles and Waste Management 17 (5) 305 - 312 1883-1648 2006 [Refereed][Not invited]
   

  We have proposed a convenient monitoring method for CH₄ concentration in ambient air at landfill sites and investigated its reliability and utility. A portable open-path analyzer (POMA), which is sold as a city gas leak tester, was used together with a retroreflector.
  A strong correlation was found between the CH₄ concentrations measured using the POMA and those indicated using a flame ionization detector hydrocarbon analyzer (FID) . The values of CH₄ obtained from the POMA are not dependent on the distance between the instrument and the retroreflector and show good repetition of results. The reliability of the proposed monitoring method is similar to that provided by the FID. The proposed method is a convenient and practical means of monitoring the change of average CH₄ concentration in ambient landfill site air. Using it, we determined the influence of landfill gas on working conditions, in addition to the degree of landfill stabilization.
• A PRIORITIZATION METHOD USING HIERARCHICAL NETWORK MODEL FOR MULTI-CRITERIA EVALUATION OF REMEDIAL COUNTERMEASURES

  PROMENTILLA Michael Angelo B., FURUICHI Tohru, ISHII Kazuei, TANIKAWA Noboru

  Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) Japan Society of Civil Engineers 62 (3) 308 - 324 1880-6082 2006 [Refereed][Not invited]
   

  This paper proposes a prioritization method using hierarchical network model to capture the complexity in the multi-criteria evaluation of remedial countermeasures. Such complexity arises from the complex interdependencies in the decision structure, as well as, from the inherent subjectivity of the decision maker. The proposed method which was built from the Analytic Network Process (ANP) uses the eigenvector approach to derive the local relative priorities and the overall relative priorities from the pairwise comparison matrix and supermatrix, respectively. The processes involved are illustrated using a decision problem drawn from real-life case study of a contaminated site caused by uncontrolled landfill in Japan.
• 生ごみバイオガス化施設における臭気の発生特性と簡便なモニタリング方法の検討

  谷川昇, 古市徹, 石井一英, 西上耕平

  においかおり環境学会誌 37 (1) 1 - 8 2006 [Refereed][Not invited]
  
• Evaluation of remedial countermeasures using the Analytic Network Process

  M. A. B. Promentilla, T. Furuichi, K. Ishii, N. Tanikawa

  WASTE MANAGEMENT 26 (12) 1410 - 1421 0956-053X 2006 [Refereed][Not invited]
   

  The aim of this paper is to present an evaluation method to aid decision makers in the prioritization and selection of appropriate countermeasures at the planning stage of site remediation. We introduced a hierarchical network (hiernet) decision structure and applied the Analytic Network Process (ANP) supermatrix approach to measure the relative desirability of the remedial alternatives using the decision maker's value judgment as input. A simplified illustrative example is presented to elucidate the process, as it is being applied to evaluate the feasible remedial countermeasures of a contaminated site caused by uncontrolled landfill. Four decision models derived from the generalized hiernet were examined to describe the effect of hierarchic functional dependence, inner dependence and feedback cycle on the derivation of the priority weights. The ANP could provide a more flexible analytical framework to break down one's judgment through a more elaborate structure in a systematic way to understand the complexity of the decision problem. The proposed method therefore may not only aid in selecting the best alternative but also may help to facilitate communication to understand why an alternative is preferred over the other alternatives through the analysis of the derived weights and its underlying decision structure. (c) 2005 Elsevier Ltd. All rights reserved.
• Analysis of Troubles and Countermeasures in Landfill Sites

  Kotani Katsumi, Furuichi Toru, Ishii Kazuei

  Journal of the Japan Society of Material Cycles and Waste Management Japan Society of Material Cycles and Waste Management 16 (6) 453 - 466 1883-1648 2005 [Refereed][Not invited]
   

  To construct landfill sites acceptable to regional residents, safe and reliable engineering structures are required. However, due to the fact that landfill sites require mixed techniques in the variable fields of civil engineering, the technical level of design and construction for landfill sites are not as yet mature, leading to technical troubles for many landfill sites.
  It is necessary to investigate the content of these troubles and to development countermeasures for preventing them in the future. This study analyzes real causes and effective countermeasures for problems in forty-eight cases of existent landfill sites, which authors have been involved in. Seven alternatives for trouble prevention are proposed, and evaluated by a questionnaire survey for specialists in design and construction of landfill sites. Results of this analysis reveal that many troubles arise in the process of construction and/or operation, but the causes of these points actually lie in the design stage. To prevent technical troubles, it is important that there are not only landfill site designs which are suitable to the geographical and geological features at properly selected sites but also thorough construction management and flexible countermeasures for unexpected accidents.
• 土壌・地下水汚染の調査解析データモデルの構築とその実行汚染現場への適用

  古市徹, 石井一英, 南部稔

  土木学会論文集 (797/VII-36) 37 - 50 2005 [Refereed][Not invited]
  
• 地下水・土壌汚染 14. 廃棄物に起因する地下水・土壤汚染

  古市 徹, 石井 一英

  地下水学会誌 公益社団法人 日本地下水学会 46 (1) 61 - 74 0913-4182 2004/02/17
• DEVELOPMENT OF ONE-DIMENSIONAL NUMERICAL MODEL FOR RESIDUAL NAPL INFILTRATING IN UNSATURATED/SATURATED POROUS MEDIA

  ISHII Kazuei, FURUICHI Tohru

  土木学会論文集 土木学会 (762/VII-31) 33 - 47 0289-7806 2004 [Refereed][Not invited]
  
• Degradation of Chlorinated Di-oxin in Denitrifying Activated Sludge from Leachate Treatme-nt Plant of a Landfill

  Kunichika Nakamiya, Toru Furuichi, Kazuei Ishii, Ikuo Souta

  Journal of Material Cycles and Waste Management 6 (1) 35 - 40 2004 [Refereed][Not invited]
  
• Study of One-dimensional Three-Phase Model for Four Different NAPLs in Physical Properties

  ISHII Kazuei, FURUICHI Tohru

  Journal of groundwater hydrology 日本地下水学会 46 (1) 3 - 22 0913-4182 2004 [Refereed][Not invited]
  
• Evaluation of the Optimal Was-hing Conditions for Dioxin-contaminated Soils from the Circumference of an Incinerator

  K. Nakamiya, T. Furuichi, K. Ishii

  Journal of Material Cycles and Waste Management 5 (1) 63 - 68 2003 [Refereed][Not invited]
  
• 浸出水中ダイオキシン類の紫外線による分解の可能性

  中宮邦近, 古市 徹, 石井一英

  都市清掃 全国都市清掃会議 55 (247) 316 - 320 0285-4104 2002 [Refereed][Not invited]
  
• 廃棄物起因の土壌・地下水汚染現場への数値シミュレーションと比抵抗法の適用

  石井一英, 古市 徹, 今井紀和, 和田卓也

  廃棄物学会論文誌 13 (5) 279 - 288 2002 [Refereed][Not invited]
  
• Isolation of a Fungus from Den-itrifying Activated Sludge That Degrades Highly Chlorinated Dioxins

  K. Nakamiya, T. Furuichi, K. Ishii

  Journal of Material Cycles and Waste Management 4 (2) 127 - 134 2002 [Refereed][Not invited]
  
• Studies on Improving Functions and Lowering Construction Cost of Landfill Sites

  KOTANI Katsumi, FURUICHI Tohru, ISHII Kazuei

  Journal of the Japan Society of Material Cycles and Waste Management Japan Society of Material Cycles and Waste Management 12 (4) 153 - 162 1883-1648 2001 [Refereed][Not invited]
   

  To obtain public acceptance for construction of landfill sites, it is important to consider not only the theoretical presentation of non-hazardousness of landfill sites, but also public confidence and public involvement at any planning stages of the landfill site construction. People living around a proposed landfill site tend to demand a non health-hazardous landfill site, which means improvement of the functions of the landfill site, on a negotiation table. On the other hand, an administration finds difficulty in constructing the improved landfill site because of budgetary restriction on public works. Therefore, those contradictory relations cause many difficulties in the negotiation.
  The objective of this paper is firstly to examine the above mentioned contradictory relations between improving functions and construction cost of landfill sites, and secondarily to demonstrate the possibility of improved and less expensive landfill sites. Namely, thirty-two typical existing landfill sites were analyzed with regard to construction cost and functions related with improved landfill sites. Based on this case study, three ideally-improved landfill site models were proposed and their costs were estimated. It is concluded that each of the three models is sufficiently equipped with non health-hazardous functions and that the construction cost is reasonable.
• Experimental Study of Two-dimensional Migration and Distribution of Non-Aqueous Phase Liquid in Unsaturated and Saturated Porous Media

  ISHII Kazuei, FURUICHI Tohru, TANAKA Nobutoshi

  Journal of groundwater hydrology 日本地下水学会 43 (3) 171 - 188 0913-4182 2001 [Refereed][Not invited]
  
• 一般廃棄物焼却飛灰中のダイオキシン類処理の現状分析と方策に関する検討

  古市徹, 石井一英, 平岡正勝

  都市清掃 全国都市清掃会議 54 (24) 257 - 266 0285-4104 2001 [Refereed][Not invited]
  
• Integration of the Process of Site Selection for Landfill Sites Through COnsidering Residents' Participation

  FUKUMOTO Tsugiya, FURUICHI Tohru, ISHII Kazuei, EBINA Yumiko, HANASHIMA Masataka

  Journal of the Japan Society of Material Cycles and Waste Management Japan Society of Material Cycles and Waste Management 11 (2) 101 - 110 1883-1648 2000/03 [Refereed][Not invited]
   

  Nowadays, construction of landfill sites has become more difficult because of the opposition from residents. The reasons are : anxiety about groundwater pollution ; doubts about the results of site selection ; suspicion of the operating bodies, and so on. To settle this problem, the '1997 Amendment to the Waste Management & Public Cleansing Law' obliged all solid waste disposal facilities to carry out living environment assessment and to make the results of the assessment available to the public. But living environment assessment only can not settle this problem completely. Residents' participation in planning and site selection for landfill sites is also required. The objective of this study is: to integrate the process of site selection for landfill sites, through three real examples of site selection, by developing a procedure of site selection based on geological and hydrogeological conditions, and introducing public participation into the procedure. Effectiveness of this process is also examined through three other real examples of site selection, where opposition from residents has occurred. As a result, it is supposed that : carrying out site selection ; making proper information available to the public ; and holding public hearings ; may prevent the escalation of opposition from residents caused by poor information, and promote mutual understanding.
• A Study of Remedial Alternatives for Soil and Groundwater-Contamination by Numerical Simulation; The First Analysis of the Inappropriate Storage Site

  Kazuei Ishii, T. Furuichi, T. Imai, Kuniyuki Ishii

  Journal of Korea Solid Wastes Engineering Society 5 (1) 25 - 30 2000 [Refereed][Not invited]
  
• Development of a Diagnostic System for Soil and Groundwater Contamination and its Application to the Inappropriate Storage Sites

  FURUICHI Tohru, ISHII Kazuei, TERAO Yasushi, MORISHITA Kanetoshi

  Journal of the Japan Society of Material Cycles and Waste Management Japan Society of Material Cycles and Waste Management 11 (1) 38 - 47 1883-1648 2000/01 [Refereed][Not invited]
   

  A recent serious environmental issue has been soil and groundwater contamination caused by waste materials. However in actuality, many local governments in Japan are experiencing trouble with development of plans to restore contaminated sites, because they have no methodology. Therefore, establishment of a methodology and procedure for investigation and remediation of contaminated sites is required. In this paper, 1) we proposed a flowchart of countermeasures for soil and groundwater contamination caused by waste materials in Japan ; 2) we introduced scoping into the countermeasures and showed the importance of developing a plan of basic remedial strategies ; and 3) we developed a diagnostic system that supported the development of an investigation plan, futhermore, by applying the diagnostic system to an actual inappropriate storage site, we proposed some remedial alternatives for contaminated sites, and we showed that the data management system with the Geographic Information System (GIS), which was part of the diagnostic system, was a very effective tool in planning the basic remedial strategies.
• The Experimental Study on the Vertical Migration of Various Non-Aqueous Phase Liquids

  ISHII Kazuei, FURUICHI Tohru, TANAKA Nobutoshi

  Journal of Groundwater Hydrology 公益社団法人 日本地下水学会 40 (2) 105 - 120 0913-4182 1998/05 [Refereed][Not invited]
   

  Soil and groundwater pollutions are caused by infiltration of hazardous organic liquids into soil due to illegal dumpings and inappropriate storages. The object of this study is investigating the behavior of non-aqueous phase liquid (NAPL) in soil and ground water.
  First, one dimensional column experiments are carried out for various NAPL with glassbeads layer as porous media. The experiment includes measuring infiltration rate and vertical distribution of NAPL and water after NAPL movement stops.
  Second, capillary pressure-saturation (P-S) relations needed in the mathematical model is measured and compared with that calculated by the method of Lenhard & Parker (1988). As a result, for various NAPL, P-S relations in air-NAPL systems can be caluculated by P-S relations in air-water systems but P-S relations in air-NAPL-water systems can not be calculated in a small saturation area because of trapped NAPL. Then, an amount of residual NAPL in suspended water zone is measured and relations between residual NAPL saturation and properties of NAPL and porous media is investigated.
• Behavior of Volatile Organic Compounds in Sanitary Landfills

  TANAKA Nobutoshi, ISHII Kazuei

  Material Cycles and Waste Management Research Japan Society of Material Cycles and Waste Management 6 (1) 24 - 33 0917-0855 1995/01/30 

  In the potential case, where solid waste containing a small amount of volatile organic compounds (VOC) and/or high density VOC liquid might be disposed of in sanitary landfill sites, the VOC transportation and attenuation process is described. The VOC transport process by unsaturated water flow caused by precipitation and landfill gas flow by anaerobic gas production is especially described in detail. After the description of distribution coefficient and absorption rate between refuse and liquid, and Henry's law constant between liquid and gas, a developed mathematical model of VOC transport by unsaturated water flow and landfill gas flow is presented.
  As a result, most VOC's, newly specified as hazardous coumpounds by the wastes disposal standards of the Waste Management Law amended in 1994 will be transported upward by landfill gas flow and then may become detectable in landfill gas.
• 水分不飽和多孔体におけるトリクロロエチレン原液の浸透挙動に関する実験的研究

  石井一英, 田中信壽, 松藤敏彦, 東條安匡

  環境工学研究論文集 32 387 - 396 1995 [Refereed][Not invited]
  

MISC

• Ｉ．Revitalization of the fishing industry through regional co-creation in Hokkaido

  KAZUEI ISHII, YUKI TAKAHASHI  NIPPON SUISAN GAKKAISHI  89-  (1)  72  -72  2023/01/15  [Not refereed][Invited]
  
• Supply Chain Plan for Hydrogen from Cattle Manure

  八村 幸一, 古市 徹, 石井 一英, 藤山 淳史  都市清掃 = Journal of Japan Waste Management Association  70-  (337)  228  -232  2017/05
• これからの最終処分システム

  石井 一英, 古市 徹, 花嶋 正孝  都市と廃棄物  46-  (11)  17  -26  2016/11
• Current Situation and Challenges of Closed System MSW Disposal Facilities

  石井 一英, 古市 徹, 花嶋 正孝  都市清掃 = Journal of Japan Waste Management Association  69-  (333)  409  -418  2016/09
• Applicability of Mechanical Biological Treatment to Waste Management Systems in Japan

  石井 一英, 古市 徹  廃棄物資源循環学会誌 = Material cycles and waste management research  27-  (5)  355  -361  2016
• DEVELOPMENT OF A POLLUTANT MASS BALANCE MACRO MODEL FOR ESTIMATING LEACHATE WATER QUALITY OF FINAL DISPOSAL SITES-FOCUSING ON AN IDENTIFICATION OF ELUTION PARAMETER

  高橋 東洋己, 藤山 淳史, 石井 一英, 佐藤 昌宏  環境システム研究論文発表会講演集  44-  137  -144  2016
• STUDY OF MANAGEMENT OF COW MANURE BIOGAS PLANT INDEPENDENT OF FIT : BASED ON EFFECTIVENESS OF INTRODUCTION OF BIOGAS PLANTS

  三宅 琢, 石井 一英, 藤山 淳史, 佐藤 昌宏  環境システム研究論文発表会講演集  44-  29  -34  2016
• EXPERIMENTAL STUDY OF FERTILIZER EFFECT COMPONENTS IN DIGESTED FROM CO-FERMENTATION OF LIVESTOCK MANURE AND WET BIOMASS

  古瀬 友咲子, 藤山 淳史, 石井 一英, 佐藤 昌宏  環境システム研究論文発表会講演集  44-  35  -40  2016
• STUDY OF PARAMETER IDENTIFICATION METHODS TO IMPROVE PRECISION IN PREDICTION OF 1,4-DIOXANE GROUNDWATER CONTAMINATION

  今池 祥平, 石井 一英, 藤山 淳史, 佐藤 昌宏, 古市 徹  環境システム研究論文発表会講演集  44-  1  -7  2016
• PROPOSALS OF IMPROVEMENT MEASURE FOR WASTE PLASTIC TREATMENT IN HOKKAIDO BY REDUCTION OF LOMG-DISTANCE TRANSPORT AND LANDFILLED WASTE

  鷲尾 卓, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  43-  179  -185  2015
• STUDY ON METHOD OF TRANSPORTATION USING SPECIAL CONTAINER AND AGRICULTURAL USE OF BIOGAS TO FOSTER ITS UTILIZATION

  奥野 芳男, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  43-  353  -360  2015
• STUDY ON FACTORS BEHIND EXPANSION OF BIOGASIFICATION FACILITIES AND HYDROGEN SUPPLY CHAIN FROM CATTLE MANURE IN HOKKAIDO

  八村 幸一, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  43-  361  -365  2015
• STUDY ON STRATEGIES TO PROMOTE THE USE OF CO-FERMENTATION SYSTEMS FOR PROCESSING SWAGE SLUDGE AND KITCHEN WASTE

  五十嵐 正, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  43-  347  -352  2015
• STUDY ON THE ESTIMATION OF RICE STRAW FUEL PRICE ACCORDING TO THE SCALE AND FORM : A CASE STUDY OF NANPORO TOWN

  石井 一英, 古市 徹, 藤山 淳史  環境システム研究論文発表会講演集  43-  287  -296  2015
• STUDY OF A HIGH-PRECISION NUMERICAL SIMULATION METHOD FOR 1,4-DIOXANE-CONTAMINATED GROUNDWATER REMEDIATION

  岡島 優人, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  43-  259  -266  2015
• PROPOSAL OF A SMALL-SCALE AND DISTRIBUTED COMBINED HEAT AND POWER SYSTEM USING WOODY BIOMASS INCLUDING DISASTER CONDITIONS

  下條 理生, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  43-  25  -31  2015
• STUDY OF COUNTERMEASURES FOR 1, 4-DIOXANE GROUNDWATER CONTAMINATION AT AOMORI-IWATE ILLEGAL DUMPING SITE BY NUMERICAL SIMULATION : FOCUS ON THE WEATHERED ZONE OF TUFF BRECCIA UNDER THE ILLEGAL DUMPED WASTES

  石井 一英, 古市 徹, 酒井 泰輔  環境システム研究論文発表会講演集  42-  203  -210  2014
• ESTIMATION OF THE EFFECTIVE OF INTRODUCING CO-FERMENTATION SYSTEMS FOR KITCHEN WASTE, SEWAGE SLUDGE AND NIGHT SOIL SLUDGE ON COSTS AND CARBON DIOXIDE EMISSIONS

  藤山 淳史, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  42-  7  -13  2014
• FINANCIAL FEASIBILITY STUDY FOR PROMOTION OF A HEAT UTILIZATION SYSTEM USING RICE STRAW PELLETS : FOCUS ON THE HEATING ENERGY DEMAND CAPACITY AND THE COLLECTION AND STORAGE METHOD

  針谷 将吾, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  42-  15  -24  2014
• STUDY ON EFFECT OF SHREDDING SIZE AND FORMING TEMPERATURE ON FORMABILITY OF RICE STRAW PELLETS

  渡邊 進太郎, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  41-  415  -421  2013
• PROPOSAL OF PRODUCTION AND STORAGE METHODS FOR SOLID FUELS MADE FROM RICE STRAW CONTAMINATED WITH RADIOACTIVE CESIUM CAUSED BY THE FUKUSHIMA NUCLEAR POWER PLANT ACCIDENT

  森 俊介, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  41-  239  -247  2013
• NUMERICAL SIMULATION FOR PREDICTION OF 1,4-DIOXANE GROUNDWATER CONTAMINATION AFTER REMOVAL OF WASTE AT AOMORI-IWATE ILLEGAL DUMPING SITE

  岡島 優人, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  41-  311  -317  2013
• 再生可能エネルギーとしてのバイオエネルギー事業の展開 : EU、韓国、台湾の取り組みから

  古市 徹, 石井 一英  開発こうほう  (591)  12  -18  2012/10
• Scenario Analysis of the Capacity of Final Disposal Amount and GHG Emission by Waste Management Strategy without Incineration

  SATAKE Yuta, FURUICHI Toru, WENG Yu-Chi, ISHII Kazuei, KIM Sang-Yul  電気学会研究会資料. IS, 情報システム研究会  2012-  (22)  25  -30  2012/07/19
• Proposal of an Estimation Model for the Destruction Quantity of the Building Stock Considering the Regional Characteristics

  KAJI Yuki, FURUICHI Toru, WENG Yu-Chi, ISHII Kazuei, KIM Sang-Yul  電気学会研究会資料. IS, 情報システム研究会  2012-  (22)  19  -24  2012/07/19
• 環境修復地地下水中の微生物による揮発性有機化合物分解能力検討

  宇佐美敦子, 巽正志, 岩出義人, 秋永克三, 山口哲夫, 西田憲一, 谷口初美, 福田和正, 古市徹, 石井一英  日本水環境学会年会講演集  46th-  2012
• SYSTEMS ANALYSIS OF CENTRALIZED COW MANURE BIOGAS FACILITIES CONSIDERING REGIONAL CONDITIONS AND FINANCIAL FEASIBILITY

  矢萩 健太, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  40-  153  -161  2012
• PROPOSAL OF UTILIZATION STRATEGIES BASED ON ESTIMATION OF AVAILABLE SUPPLY QUANTITY FOR BIOENERGY IN HOKKAIDO FOCUSING COW MANURE AND FOREST RESIDUE

  田中 慧悟, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  40-  163  -172  2012
• EXPERIMENTAL STUDY ON STABLE CONDITIONS OF COFERMENTATION FOR FEEDING FOOD WASTES INTO A COW MANURE BIOGAS PLANT

  大石 千博, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  40-  173  -179  2012
• STUDY ON INFLUENCE FACTORS ON THE HEATING VALUE OF RICE STRAW-MADE PELLETS AT THE ACTUAL PLANT IN NAMPORO TOWN

  友川 悠, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  40-  81  -87  2012
• SYSTEMS ANALYSIS OF HEAT SUPPLY AND VEHICLE FUEL UTILIZATION FROM MUNICIPAL BIOGAS FACILITIES FOR KITCHEN WASTES : FINANCIAL FEASIBILITY EVALUATION SUPPOSING REVISED LEGAL SYSTEMS UNDER CONSIDERATION IN JAPAN

  坂本 嵩延, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  40-  233  -241  2012
• Three-dimensional Numerical Simulation for Estimating Groundwater Flow and 1,4-dioxane Contamination at Aomori-Iwate Illegal Dumping Site in Japan

  K.Ishii, T.Furuichi, C. Iguro  The Proceedings of 27th International Conference on Solid Waste Technology and Management  2012  [Not refereed][Not invited]
  
• Numerical simulation of nitrogen groundwater pollution for proper management of cow manure

  S. Tsuchiya, T. Furuichi, K. Ishii  WIT Transactions on Ecology and the Environment  163-  343  -353  2012  [Not refereed][Not invited]
   

  About 20 million tons of cow manure is generated in Hokkaido, Japan, each year. Approximately 94% of this manure is reported to be recycled. However, the actual amounts of cow manure generated and of manure applied to pastures as compost or soil improver are not entirely clear, and so the reported rates of cow manure recycling are unlikely to represent the realities of current cow manure management. It is possible that excessive amounts of manure are being applied to pastures, leading to nitrate-nitrogen leaching and groundwater pollution. Therefore, it is necessary to assess the mass balance of nitrogen in the system to determine appropriate management strategies for cow manure. In this study, the nitrogen mass balance was calculated for cow manure during all stages of the process, from its generation to its application as a compost or soil improver. The nitrogen mass balance was determined through site investigations. Assuming a typical model of dairy farming, the actual amount of nitrogen applied in pastures was calculated in terms of nitrogen use efficiency, depending on vegetation type. The potential for groundwater pollution was evaluated by numerical simulations based on the nitrogen mass balance. The results showed that when large amounts of manure are applied to pastures, excess nitrogen will be present in the system, which may be susceptible to leaching and lead to groundwater pollution. Methods for cow manure management are discussed based on the results of the numerical simulations. © 201 WIT Press.
• Experimental Study on the Proper Loading Rate for Cofermentation in a Cow-manure Biogas Plant

  K.Ishii, T. Furuichi, Y. Ooishi  The Proceedings of 27th International Conference on Solid Waste Technology and Management  2012  [Not refereed][Not invited]
  
• Modeling and Publicity of Regional Material-Cycle System by Effective Utilization of Biomass

  古市 徹, 石井 一英  都市清掃  64-  (304)  571  -577  2011/11
• Stability of Indirect Materials to the Biogasplant in Dairy Areas

  HINATA Takahisa, KIMURA Yoshiaki, NISHIMURA Naoki, TAKENAKA Hideyuki, ISHII Kazuei, FURUICHI Toru  Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management  22-  (0)  144  -144  2011  [Not refereed][Not invited]
   

  本研究では、バイオガスプラントへの副資材の安定的な投入態勢を構築する端緒として、副資材投入の実例を持つ北海道の酪農専業地帯におけるバイオガスプラントへのふん尿を含めた資材搬入量を整理した。さらに、各資材の搬入量の安定性を検証した上で、安定性がバイオガス発生に与える影響を考察することを目的とした。結果より、プラントへの副資材は酪農業に由来するものが大半を占め、バイオガスの発生増に大きく寄与するものから水分率の非常に高いものまで多様な資源が賦存することがわかった。また、副資材の搬入量には大きな年間変動があることがわかった。加えて低カロリー副資材の発生はある程度予測が可能で搬入の計画が立てられる一方で、高カロリー副資材については月間変動も大きく、かつ計画的な搬入が困難であろうことが確認された。ただし、短期間での搬入は、プラントでのガス発生量に影響を与えることが示唆された。
• Proposal of Measures for the Popularization of Recycled Products in Hokkaido

  竹次 豪太, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  39-  407  -413  2011
• STUDY OF REGIONAL MATERIAL-CYCLE SYSTEMS OF KITCHEN WASTE IN ISLAND REGION

  武部 玲央, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  39-  335  -340  2011
• Studies on Utilization Systems of Logging Residue for Sustainable Society in Hokkaido

  森 俊介, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  39-  341  -348  2011
• Proposal of Proper Management for Cattle Manure Based on Site Investigation : Presumption of Nitrogen Soil Reduction Amount and Evaluation of Underground water pollution

  土屋 翔, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  39-  321  -328  2011
• Evaluation for Effectiveness of Groundwater Remediation in an Illegal Dumping site

  N. Nishida, T. Furuichi, K. Ishii  The Proceedings of Sardinia 2011  2011  [Not refereed][Not invited]
  
• Estimation Method of the Distribution of the Waste Layer and Contaminated Groundwater Using an Electrical Resistivity Survey for Remediation of Illegal Dumping Sites

  T. Wada, T. Furuichi, K. Ishii  The Proceedings of Sardinia 2011  2011  [Not refereed][Not invited]
  
• Estimation of Change in Methane Emission Rate by Analysis of Age-defined Wastes in a Landfill Site

  Kazuei Ishii, Toru Furuichi, Hidetoshi Kamio  The Proceedings of the 26th International Conference on Solid Waste Technology and Management  39-  151  -159  2011  [Not refereed][Not invited]
  
• Field studies of Stabilizing the Waste in Closed System Disposal Facilities

  K. Ishii, T. Furuichi  The Proceedings of Sardinia 2011  2011  [Not refereed][Not invited]
  
• Development of an Estimation Method for the Collectable Biowastes as Inputs of Regional Biogasification Systems

  Kazuei Ishii, Toru Furuichi, Syo Watanabe  The Proceedings of the 26th International Conference on Solid Waste Technology and Management  2011  [Not refereed][Not invited]
  
• Estimation of the Economic Capacity of the Pellet Plant For Heat Recovery in Ashoro Area in Japan

  K. Ishii, T. Furuichi, T. Homma  The Proceedings of Bioenergy 2011  2011  [Not refereed][Not invited]
  
• Proposal of Clean-up Program Incorporated with Follow-up Plan for Illegal Dumping Sites

  S.Y. Kim, T. Furuichi, K. Ishii, K. Kurano  The Proceedings of Sardinia 2012  2011  [Not refereed][Not invited]
  
• Estimation of Change in Methane Generation Rate by Analysis of Age-defined Wastes in a Landfill site

  K.Ishii, T. Furuichi, H. Kamio  The Proceedings of Sardinia 2011  39-  151  -159  2011  [Not refereed][Not invited]
  
• Evaluation of Methane Fermentation Characteristics of Organic Wastes from Industrial Complex in Ishikari Bay New Port of Japan: Fundamental Experiment Lipid, Protein, and Carbohydrate Contents of Organic Wastes

  S.Y. Kim, T. Furuichi, K. Ishii, C. Suwabe  The Proceedings of 2011 World Congress of International Solid Waste Association (ISWA)  2011  [Not refereed][Not invited]
  
• Development of utilization systems for forest residue in Hokkaido according to a Japanese strategy for a sustainable society

  S. Mori, T. Furuichi, K. Ishii  WIT Transactions on Ecology and the Environment  155-  303  -315  2011  [Not refereed][Not invited]
   

  The Japanese government has a strategy for achieving a sustainable society by integrating three societies: low carbon, a sound material-cycle, and natural symbiosis. In particular, biomass utilization is critical for achieving a sustainable society. The utilization of forest residues, which form part of the unused biomass, is expected to occur, and the target utilization ratio of forest residues is > 30% by 2020. However, the current utilization ratio is 1%. It is necessary to clarify the relationship between the utilization of forest residues and the implementation of the three societies above, and to promote the strategic utilization of forest residues, particularly in Hokkaido, as it has abundant forests. Therefore, in this study, the relationship between the utilization of forest residues and the three societies was clarified regarding its effect and limitations according to the Japanese strategy for a sustainable society. Problems in the utilization of forest residues in Hokkaido were then extracted systematically by carrying out a hearing survey of specialists in Hokkaido. Based on the problems encountered, we have developed a feasible system for utilization of forest residues in Hokkaido. © 2012 WIT Press.
• 行政情報 北海道バイオリサイクルフェスタシンポジウム 北海道のバイオマス利活用

  北海道バイオリサイクルフェスタ実行委員会事務局(北海道環境生活部環境局循環型社会推進課), 古市 徹, 石井 一英  開発こうほう  (569)  7  -12  2010/12
• 行政情報 平成21年度地域からの循環型社会づくりシンポジウム 持続可能な北海道、その将来像を描く

  環境省北海道地方環境事務所環境対策課, 谷川 昇, 石井 一英  開発こうほう  (561)  7  -11  2010/04
• STUDY ON COMMUNITY-BASED RISK COMMUNICATION FOR RESTORATION OF ILLEGAL DUMPING SITES : PROPOSAL OF INITIAL ACTION BY ADMINISTRATORS

  大石 千博, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  38-  169  -175  2010
• BIOGASIFICATION Systems by Cofermentation of Kitchen Waste and Sewage Sludge : ITS SPREAD POSSIBILITY IN SEWAGE TREATMENT PLANTS OR NIGHT-SOIL TREATMENTS PLANTS IN HOKKAIDO USING QUESTIONNAIRE SURVEY

  田中 慧悟, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  38-  345  -352  2010
• STUDY OF EFFECTIVE FACTORS FOR THE FEASIBILITY OF THE HEAT UTILIZATION SYSTEM USING RICE STRAWS IN NANPORO

  矢萩 健太, 古市 徹, 石井 一英  環境システム研究論文発表会講演集  38-  339  -344  2010
• Design and Construction of the Large Closed System Disposal Facilities in Japan

  Fumiyoshi Ohno, Masataka Hanashima, Toru Furuichi, Kazuei Ishii, Toshiro Komoda, Katsue Nishiyama  The Proceedings of the Sixth Asian-Pacific Landfill Symposium  584  -591  2010  [Not refereed][Not invited]
  
• Study of On-site Treatment of Waste Contaminated by BTX and Organic Pollutants in Illegal Dumping Sites - Treatment Characteristics by Combination of Calcium Oxide Addition and Aerobic Biodegradation-

  Kazuei Ishii, Toru Furuichi, Noboru Tanikawa, Fumiya Ttsubo  The Proceedings of the Sixth Asian-Pacific Landfill Symposium  38-  557  -562  2010  [Not refereed][Not invited]
  
• Studies on Environmental Effects of Dust in Closed System Disposal Facilities

  Tetsuhiro Kurahashi, Masataka Hanashima, Toru Furuichi, Kazuei Ishii, Katsuhiro Hayashi, Masahiro Ido, Tatsuya Kametani  The Proceedings of the Sixth Asian-Pacific Landfill Symposium  504  -510  2010  [Not refereed][Not invited]
  
• Proposal of an On-site Remediation Method for BTX and Organic Pollutants of Illegal Dumping Sites

  K. Ishii, T. Furuichi, N. Tanikawa, F. Tsubo  The Proceedings of 25th International Conference on Solid Waste Technology and Management  2010  [Not refereed][Not invited]
  
• Study of the Waste Stabilization Index on Closed System Disposal Facilities Based on Field Survey Data -3rd Report

  Takashi Kohinata, Kazuei Ishii, Masataka Hanashima, Toru Furuichi  The Proceedings of the Sixth Asian-Pacific Landfill Symposium  351  -356  2010  [Not refereed][Not invited]
  
• Numerical Modeling of Nitrogen Balance for Cow Manure Management in Dairy Farms

  K. Ishii, T. Furuichi, N. Tanikawa, S, Nitta  The Proceedings of 25th International Conference on Solid Waste Technology and Management  2010  [Not refereed][Not invited]
  
• Proposal of Waste Biomass Biogasification for an Energy Cycle by Partnership between Arterial and Venous Industries: Utilization System of Upgraded Biogas in Ishikari Bay New Port Area in Japan

  Kazuei Ishii, Toru Furuichi, Norihide Goshima, Noboru Tanikawa  Proceedings of the 6th Internatinal Conference on Biomass for Energy  2010  [Not refereed][Not invited]
  
• Introduction of Archives Method and Its Application Example of Large-Scale Illegal Dumping Cases in Japan

  SangYul Kim, Toru Furuichi, Noboru Tanikawa, Kazuei Ishii  The Proceedings of the Sixth Asian-Pacific Landfill Symposium  102  -104  2010  [Not refereed][Not invited]
  
• Proposal for a Convenient Method for Estimating Methane Emissions from Landfilled Waste Using a Closed System Disposal Facility and a Portable Open-Path Analyzer

  N. Tanikawa, T. Furuichi, K. Ishii  The Proceedings of Sardinia 2009 Symposium, XII International Waste Management and Landfill Symposium  2009  [Not refereed][Not invited]
  
• Development of Energy Supply Systems in an Industrial Area Linked with a Biomass Community

  K. Ishii, T. Furuichi, N. Tanikawa, S. Watanabe  The Proceedings of Sardinia 2009 Symposium, XII International Waste Management and Landfill Symposium  2009  [Not refereed][Not invited]
  
• Experimental Studies on a Selfres-toring Liner System that Uses Colloidal Solution for Landfill Site

  M. Kawaguchi, T. Furuichi, N. Tanikawa, K. Ishii  The Proceedings of Sardinia 2009 Symposium, XII International Waste Management and Landfill Symposium  2009  [Not refereed][Not invited]
  
• Planning of Effective Biogas Use Systems by Regional Cooperation of Municipalities

  K. Ishii, T. Furuichi, N. Tanikawa, S. Watanabe  Bioenergy 2009, Book of Proceedings  863  -872  2009  [Not refereed][Not invited]
  
• Study of Nitrogen Cycle Related to Waste Biomass Utilization by Numerical Simulations

  K. Ishii, T. Furuichi, N. Tanikawa, K. Nakamura  The Proceedings of Sardinia 2009 Symposium, XII International Waste Management and Landfill Symposium  2009  [Not refereed][Not invited]
  
• Three-Dimensional Groundwater Simulation Based on Estimation of Nitrogen Loading Amounts from Different Types of Nitrogen Source on Dairy Farms

  Kazuei Ishii, Toru Furuichi, Noboru Tanikawa, Shogo Nitta  The Proceedings of the 24th International Confere-nce of Solid Waste Tech-nology and Management  757  -764  2009  [Not refereed][Not invited]
  
• Study on Benzene volatilization and biodegradation for the reme-diation of illegal dumping sites by an air injection method

  Kazuei Ishii, Toru Furuichi, Noboru Tanikawa, Mika Otsuka  The Proceedings of the 24th International Confere-nce of Solid Waste Tech-nology and Management  305  -312  2009  [Not refereed][Not invited]
  
• Biowaste Management and Recycle Network in Japan

  Kazuei Ishii, Toru Furuichi, Noboru Tanikawa  Proceedings of Biowaste Australia 2009  2009  [Not refereed][Not invited]
  
• 大都市圏における食品廃棄物のバイオガス化施設の建設のための費用便益分析

  五島 典英, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  19-  347  -349  2008/11/19
• 最終処分場再生ニーズと効果のアンケート調査に基づく解析

  武田 朋子, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  19-  174  -176  2008/11/19
• 循環型社会地域計画のための廃棄物管理システム構築の提案

  浅岡 幸基, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  19-  165  -167  2008/11/19
• 酪農場からの汚染源別窒素の負荷量の推定に基づく3次元地下水数値シミュレーション

  新田 省吾, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  19-  830  -832  2008/11/19
• 家畜ふん尿による地下水窒素汚染軽減のための流域内窒素収支モデルの開発

  香阪 絵里, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  19-  827  -829  2008/11/19
• 揮発性有機化合物で複合汚染された不法投棄廃棄物浄化のための基礎的研究--微生物分解の嫌気-好気切り替え効果の検討

  池田 洋, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  19-  806  -808  2008/11/19
• クローズド型処分場の安定化モデルにおける散水と埋立方法に関する研究

  大塚 義一, 石井 一英, 花嶋 正孝  廃棄物学会研究発表会講演論文集  19-  681  -683  2008/11/19
• Material Balance of Aerobic Degradation in Model Waste Layer Boxes

  T. Mamiya, T. Furuichi, N. Tanikawa, K. Ishii  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Study of the Waste StabilizationIndex on Closed System Disposal Facilities Based on Field Survey Data 2

  T. Kohinata, K. Ishii, R. Yanase, M. Hanashima, ndT. Furuichi  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Applicability of the Resistivity Method for Estimation of Distribution of Waste and Contaminants in Illegal Dumping Sites

  T. Wada, T. Furuichi, N. Tanikawa, K. Ishii  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Applicability of the Air Injection Method for Risk Reduction of the Working Area in Illegal Dumping Site Restoration

  K. Toge, Y. Kuroki, T. Furuichi, N. Tanikawa, K. Ishii  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Study of the Characteristics of Kitchen-Waste Composting in Japanese Local Municipalities Based on a Questionnaire Survey

  N. Tanikawa, T. Furuichi, K. Ishii, S. Moriyama  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Development of Municipal SolidWaste Management Systems for Regional Planning Toward a Sound Material-cycle Society

  K. Ishii, T. Furuichi, N. Tanikawa, K. Asaoka  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Study on Reclamation Needs and the Effectiveness of Landfills through a Questionnaire Survey

  T. Takeda, T. Furuichi, K. Ishii, N. Tanikawa  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Evaluation of Biodiesel Fuel Production and Use Systems for the Promotion of Recycling of Waste Cooking Oil in Japan

  S. Hashimoto, T. Furuichi, N. Tanikawa, K. Ishii  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Three-Dimensional Groundwater Simulation Based on an Estimation of the Nitrogen-Loading Rate from Different Nitrogen Sources at a Dairy Farm

  S. Nitta, T. Furuichi, K. Ishii, N. Tanikawa  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Proposal for a Municipal Solid Waste Management System to Reduce Carbon Loading at a Landfill Site

  F. Tsubo, T. Furuichi, K. Ishii, N. Tanikawa  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Cost-Benefit Analysis for the Construction of a BiogasificationPlant for Food Waste in Metropolitan Area

  N. Goshima, T. Furuichi, K. Ishii, N. Tanikawa  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Proposal of Convenient Monitoring Method for Hazardous Gases Based on Methane During Wastes Excavation in Reclamation Sites

  K. Iwasaki, T. Furuichi, N. Tanikawa, K. Ishii  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Study on the Effect of Water Sprinkling for Removal of Chemicals from Wastes Disposed in Closed System Landfill Sites

  Y. Otsuka, K. Ishii, M. Hanashima, T. Furuichi  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Fundamental Study on the Treatment of Waste Contaminated by Multiple Volatile Organic Compounds at Illegal Dumping Sites: Effectiveness of Changing from Anaerobic to Aerobic Processes on Biodegradation

  H. Ikeda, T. Furuichi, K. Ishii, N. Tanikawa  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• A Study of Factors Controlling the Rate of Biodegradation of Tetrachloroethylene for in Situ Remediation of Illegal DumpingSites

  M. Otsuka, T. Furuichi, K. Ishii, N. Tanikawa  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Biogasification of Illegally Dumped Wastes for Energy Recovery

  R. Inaba, T. Furuichi, T. Komatsu, N. Tanikawa, K. Ishii  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Proposal of Risk-Based Remediation Policy for Illegal Dumping Sites in Japan

  M. Fujikura, T. Furuichi, N. Tanikawa, K. Ishii  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• A Case Analysis of the Decision Making Processes withResident Participation for Removal of Environmental Problems due to Illegal Dumping of Wastes

  S.Y. Kim, T. Furuichi, A. Itakura, N. Tanikawa, K. Ishii  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Prediction Model of River and Groundwater Nitrogen Contamination Caused by Livestock Manure in a River Basin

  K. Ishii, T. Furuichi, N. Tanikawa, E. Kohsaka  Proceedings of the 23rd International Conference on Solid Waste Technology and Management  850  -861  2008  [Not refereed][Not invited]
  
• Study of Public Endurance in the Separation and Discharging Actions in the Recycling of Kitchen Waste in Japan

  T. Sato, T. Furuichi, N. Tanikawa, K. Ishii  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Multi Criteria Decision Making for Regional Waste ManagementSystems Using Analytic Network Process

  N. Sato, T. Furuichi, K. Ishii, N. Tanikawa  Proceedings of the 23rd International Conference on Solid Waste Technology and Management  443  -452  2008  [Not refereed][Not invited]
  
• Recycling Policy Making of Organic Waste using Analytical Network Process

  Kazuei Ishii, Toru Furuichi  MACMESE 2008: PROCEEDINGS OF THE 10TH WSEAS INTERNATIONAL CONFERENCE ON MATHEMATICAL AND COMPUTATIONAL METHODS IN SCIENCE AND ENGINEERING, PTS I AND II  94  -+  2008  [Not refereed][Not invited]
   

  The Analytic Hierarchy Process (AHP) has been used widely in multicriteria selection problems. However, AHP can deal with only a simple hierarchy of elements. On the other hand, the Analytical Network Process (ANP) can deal with more complex structures that have some interdependence or feedback between elements. This study attempted to apply ANP to recycling policy making of organic waste in a region where a large amount of kitchen waste and livestock manure are generated as solid waste. Using the weightings given by interviews with five specialists who are familiar with solid waste management in the region, ANP selected alternatives that included blogasification of kitchen wastes and livestock manure, and it clarified why those alternatives were selected. In addition, a compatibility quotient was proposed as an index to promote a group discussion for the selection of recycling systems. This index was found to be useful for helping to identify the attitude of each decision maker in a group discussion.
• Multi Criteria Decision Making for Regional Organic Waste Management Systems Using Analytic Network Process

  N. Sato, T. Furuichi, K. Ishii, N. Tanikawa  Proceedings of the Fifth Asian-Pacific Landfill Symposium  2008  [Not refereed][Not invited]
  
• Systems Analysis of Waste Management by Biogasification of Charged Kitchen Waste in Japan

  T. Sato, T. Furuichi, N. Tanikawa, K. Ishii  Proceedings of the 23rd International Conference on Solid Waste Technology and Management  401  -409  2008  [Not refereed][Not invited]
  
• A Study of Factors Controlling the Rate of Biodegradation of Tetrachloroethylene for the Remediation of Illegal Dumping Sites

  M. Otsuka, T. Furuichi, K. Ishii, N. Tanikawa  Proceedings of the 23rd International Conference on Solid Waste Technology and Management  35  -44  2008  [Not refereed][Not invited]
  
• 原位置バイオレメディエーション法によるテトラクロロエチレン汚染現場の修復可能性の検討

  長山 真子, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  18-  886  -888  2007/11/19
• 不法投棄現場修復のためのテトラクロロエチレン嫌気性微生物分解とその影響因子に関する研究

  大塚 美夏, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  18-  923  -925  2007/11/19
• 河川の硝酸性窒素汚染源同定のための大腸菌群遺伝子分析手法の検討

  石井 一英, 古市 徹, 谷川 昇  廃棄物学会研究発表会講演論文集  18-  901  -903  2007/11/19
• 不法投棄現場の環境再生に関するニーズ調査手法の提案--青森・岩手県境不法投棄現場の跡地利用を例として

  長尾 由加利, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  18-  90  -92  2007/11/19
• ANP手法を用いた廃棄物管理の広域化システム評価

  佐藤 直生, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  18-  198  -200  2007/11/19
• 廃棄物系バイオマスを利活用する自治体のリサイクルシステム選択のためのANP手法の検討

  竹中 康倫, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  18-  161  -163  2007/11/19
• クローズド型処分場の安定化モデルにおけるマクロレベルでの洗出しに関する研究

  大塚 義一, 石井 一英, 古市 徹  廃棄物学会研究発表会講演論文集  18-  670  -672  2007/11/19
• 最終処分場埋立廃棄物のバイオガス化の適用可能性の検討

  谷川 昇, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  18-  489  -491  2007/11/19
• Final disposal site and sustainable society (pt. 6) Sustainable society and maintenance of final disposal site

  川口 光雄, 柳瀬 龍二, 石井 一英  Journal of Japan Waste Management Association  60-  (280)  634  -642  2007/11
• A Study on Improvement of the Waste Stabilization Model in Closed System Disposal Facilities

  Y. Ohtsuka, S. Yajima, K. Ishii, T. Furuichi, M. Hanashima  Proceedings of Sardinia 2007  2007  [Not refereed][Not invited]
  
• Study on the Waste Stabilization Index on Closed System Disposal Facilities Based on Filed Survey Data

  T. Kohinata, K. Ishii, R. Yanase, M. Hanashima, T. Furuichi  Proceedings of Sardinia 2007  2007  [Not refereed][Not invited]
  
• Study on Biogasification of Landfilled Waste for Restoration and Reclamation of Illegal Dumping Sites and Inappropriate Landfill Sites

  N. Tanikawa, T. Furuichi, K. Ishii  Proceedings of Sardinia 2007  2007  [Not refereed][Not invited]
  
• Recent Biomass Recycling Technologies in Japan and Europe

  K. Ishii, T. Furuichi  Proceedings of Korea-Japan Special Symposium ?Utilization of Biomass and Waste for Clean Energy Recovery  157  -167  2007  [Not refereed][Not invited]
  
• Study on Promoting Factors for Kitchen-Waste Recycling in Japanese Local Municipalities Using A Questionnaire Survey

  S. Moriyama, T. Furuichi, N. Tanikawa, K. Ishii  Proceedings of Sardinia 2007  2007  [Not refereed][Not invited]
  
• Systematic Planning for Waste Removal from Illegal Dumping Sites

  T. Takeda, T. Furuichi, K. Ishii, N. Tanikawa  Proceedings of the 22ndInternational Conferenceon Solid Waste Technology and Management  630  -637  2007  [Not refereed][Not invited]
  
• Biorecycle Systems in Japan and Europe

  T. Furuichi, K. Ishii, Kim Sang-Yul  Proceedings of Korea-Japan Special Symposium ?Utilization of Biomass and Waste for Clean Energy Recovery  121  -129  2007  [Not refereed][Not invited]
  
• Multicriteria Selection of Organic Waste Recycling Systems by Analytical Network Process

  K. Ishii, T. Furuichi, N. Tanikawa, M.A.B. Promentilla, Y. Takenaka  Proceedings of Sardinia 2007  2007  [Not refereed][Not invited]
  
• Biowaste Recycling Systems for Regional Waste Management and Local Revitalization in Japan

  K. Ishii, T. Furuichi, N. Tanikawa  Bioenergy 2007  461  -468  2007  [Not refereed][Not invited]
  
• Field Studies on Nitrogen Pollution of River and Groundwater by Livestock Manure

  E. Kohsaka, T. Furuichi, K. Ishii, N. Tanikawa  Proceedings of the 22ndInternational Conferenceon Solid Waste Technology and Management  1288  -1300  2007  [Not refereed][Not invited]
  
• Feasibility Studies on AnaerobicBioremediation of Illegal Dumping Sites Contaminated byTetrachloroethylene

  K. Ishii, T. Furuichi, N. Tanikawa, M. Nagayama  Proceedings of the 22nd International Conference on Solid Waste Technology and Management  619  -629  2007  [Not refereed][Not invited]
  
• 家畜ふん尿による窒素汚染の河川・地下水経路の調査・解析

  香阪 絵里, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  17-  1210  -1212  2006/11/20
• 不法投棄現場修復計画への新しい撤去シミュレーションモデルの提案

  武田 朋子, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  17-  1176  -1178  2006/11/20
• 不法投棄現場における嫌気性バイオレメディエーションのモデル化とシミュレーション

  佐藤 康行, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  17-  1179  -1181  2006/11/20
• Pseudallescheria boydiiによる2,3,7,8-TCDD分解の数学モデルの検討

  久保島 賢, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  17-  1083  -1085  2006/11/20
• 不法投棄現場のベンゼン等芳香族化合物を対象とした好気性バイオレメディエーションの適用可能性の検討

  池田 洋, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  17-  1182  -1184  2006/11/20
• 産業廃棄物の不法投棄現場のリスク低減策

  寺尾 康, 石井 一英, 古市 徹  廃棄物学会研究発表会講演論文集  17-  1173  -1175  2006/11/20
• 札幌市ごみ減量化に向けた小単位ごみ収集量把握方法と情報提供方法の検討

  福地 晴男, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  17-  99  -101  2006/11/20
• クローズドシステム処分場の安定化促進のための散水方法の検討

  大塚 義一, 石井 一英, 古市 徹  廃棄物学会研究発表会講演論文集  17-  195  -197  2006/11/20
• アンケートによる札幌市の廃棄物系バイオマスの堆肥利用促進策の検討

  浅岡 幸基, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  17-  413  -415  2006/11/20
• Factors Determining Use of Compost in Suburban Areas by Farmers

  Tanikawa Noboru, Furuichi Toru, Tokai Akihiro, Ishii Kazuei, Ohta Yoko  Journal of the Japan Society of Material Cycles and Waste Management  17-  (2)  153  -161  2006  [Not refereed][Not invited]
   

  A questionnaire survey was circulated among farmers in Sapporo City asking them to clarify their awareness of and use of compost. Factors that led to their decision to use compost were analyzed, and measures for promoting uses of compost that were acceptable to farmers in suburban areas were also investigated.
  About 53% of the farmhouses in Sapporo City use compost to increase crop yields and improve soil quality despite the hard work involved in applying it. At the same time, most of them are also using chemical fertilizers. The compost being used is mostly made of livestock excreta from cattle farms or from fertilizer manufacturers. It was found that the top reason farmers did not use compost was concern about compost raw materials, the second reason was the hard labor involved in using compost, and the third reason was uncertainty about the actual effects of using it. The study clearly indicates that farmers who are not using compost at present would want to use cheaper compost made from reliable materials such as livestock excreta, and compost that requires the bare minimum of labor for application.
  There are three important criteria for the promotion of compost utilization by farmers in suburban areas: use of livestock excreta as the main raw material; development of coordination between cattle farmers who make the compost and field farmers who use it; and sharing of information, such as knowledge about compost application, through cooperation between farmers who have used compost and those who have not.
• Study of the Waste Stabilization on Closed System Disposal Facilities Based on Field Survey Data

  T. Kohinata, K. Ishii, R. Yamase, M. Hanashima, T. Furuichi  Proceedings of the Fourth Asian-Pacific Landfill Symposium in Shanghai 2006, APLAS2007  3-  189  -196  2006  [Not refereed][Not invited]
  
• Applicability of Open-path Analyzers to Gas Monitoring at a Landfill Site and an Illegal Dumping Site

  N. Tanikawa, T. Furuichi, K. Ishii, K. Matsuo  Proceedings of the Fourth Asian-Pacific Landfill Symposium in Shanghai 2006, APLAS2006  1-  205  -210  2006  [Not refereed][Not invited]
  
• Proposal of Closed System Disposal Facilities for Resource Storage

  H. Kojima, S. Yoshida, K. Ishii, A. Kanda, M. Hanashima, T. Furuichi  Proceedings of the Fourth Asian-Pacific Landfill Symposium in Shanghai 2006, APLAS2007  3-  185  -188  2006  [Not refereed][Not invited]
  
• Prediction of the Effectiveness of Capping and Vertical Barriers on Groundwater Flow at an Illegal Dumping Site Using Numerical Simulation

  M. Nagayama, T. Furuichi, K. Ishii, N. Tanikawa  Proceedings of the Fourth Asian-Pacific Landfill Symposium in Shanghai 2006, APLAS2006  1-  172  -180  2006  [Not refereed][Not invited]
  
• Modeling for Biodegradation of 2,3,7,8-tetrachlorodibenzo-p-dioxin by Using Pseudallescheria boydii

  K. Ishii, T. Furuichi, M. Kuboshima, N. Tanikawa  Proceedings of Dioxin 2006, 26th International Symposium of Halogenated Persistent Organic Pollutants, Organohalogen Compounds  68-  348  -351  2006  [Not refereed][Not invited]
  
• Scenario Analysis of Biogasification Facilities for Kitchen Waste Management in Japan's Metropolitan Areas

  N. Tanikawa, T. Furuichi, K. Ishii  Proceedings of Venice 2007, Biomass and waste to energy symposium  2006  [Not refereed][Not invited]
  
• A New Concept of Biorecyling for Restoration and Reclamation of Illegal Dumping Sites and Inappropriate Landfill Sites

  K. Ishii, T. Furuichi, N. Tanikawa, K. Toge  Proceedings of Venice 2006, Biomass and waste to energy symposium  2006  [Not refereed][Not invited]
  
• A Study on a Waste Stabilization Method in Closed System Disposal Facilities

  Y. Otsuka, K. Ishii, M. Hanashima, T. Furuichi, M. Kawaguchi  Proceedings of the Fourth Asian-Pacific Landfill Symposium in Shanghai 2006, APLAS2007  3-  44  -51  2006  [Not refereed][Not invited]
  
• Numerical Analysis of Flushing Organic Matter from Bottom Ash Layer in Closed System Disposal Facilities

  K. Ishii, T. Furuichi, N. Tanikawa  Proceedings of the Fourth Asian-Pacific Landfill Symposium in Shanghai 2006, APLAS2006  1-  154  -162  2006  [Not refereed][Not invited]
  
• Study of the Characteristics of Biogasification Facilities for Planning Kitchen-waste Management in Japan

  N. Tanikawa, T. Furuichi, K. Ishii, K. Nishigami  Proceedings of ORBIT 2006, Biological Waste Management ? From Local to Global  815  -821  2006  [Not refereed][Not invited]
  
• Investigation of Biomass Recycling Systems of Composting Livestock Manure and Branch Chips in Sapporo Japan

  K. Ishii, T. Furuichi, N. Tanikawa  Proceedings of ORBIT 2006, Biological WasteManagement ? From Local to Global  43  -52  2006  [Not refereed][Not invited]
  
• Numerical Simulation of Groundwater Flow with Sensitive Tracer Tests at an Illegal Dumping Site

  K. Ishii, T. Furuichi  Proceedings of 1st European Chemistry Congress  H-PO-14-  2006  [Not refereed][Not invited]
  
• Characteristics of the Reduction in Dioxins For 24 Months in the Examination of a Bioremediation Lysimeter

  I. Souta, T. Furuichi, K. Ishii, I. Sakagami, Y. Otonari  Proceedings of Dioxin 2006, 26th International Symposium of Halogenated Persistent Organic Pollutants, Organohalogen Compounds  68-  1488  -1491  2006  [Not refereed][Not invited]
  
• Proposal of a Recycling Strategy for PET Bottles from Business Wastes in Japan

  Y. Takenaka, T. Furuichi, K. Ishii, N. Tanikawa  Proceedings of The 21st International Conference on Solid Waste Technology and Management,  614  -622  2006  [Not refereed][Not invited]
  
• Numerical Modeling of Anaerobic Bioremediation of Chlorinated Organic Compounds for Remediation of Illegal Dumping Sites

  K. Ishii, T. Furuichi, N. Tanikawa, Y. Sato, T. Komatsu  Proceedings of The 21st International Conference on Solid Waste Technology and Management  427  -435  2006  [Not refereed][Not invited]
  
• Evaluation of Remedial Alternatives Using a Prioritization Method Based ona Hierarchical Network Model

  M.A.B. Promentilla, T. Furuichi, K. Ishii, N. Tanikawa  IERC2006  2006  [Not refereed][Not invited]
  
• 不適正最終処分場等の修復・再生システムの一環としてのバイオガスの回収の可能性の検討(1)

  惣田 〔イク〕夫, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  16-  724  -726  2005/10/31
• 土壌・地下水汚染診断・修復における報告書作成支援システムの開発

  森下 兼年, 石井 一英, 古市 徹  廃棄物学会研究発表会講演論文集  16-  1197  -1199  2005/10/31
• 土壌・地下水汚染データのGISを用いた統合化による汚染現場の解析事例

  上村 友美, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  16-  1191  -1193  2005/10/31
• 数値シミュレーションによる降雨の影響を考慮した地下水流れの予測

  長山 真子, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  16-  1188  -1190  2005/10/31
• 家畜糞尿の汚染源評価と河川水質への影響

  松田 悠見, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  16-  1173  -1175  2005/10/31
• ヒアリング調査と家畜ふん尿堆肥堆肥生産実験による剪定枝チップ利用可能性の検討

  石井 一英, 古市 徹, 谷川 昇  廃棄物学会研究発表会講演論文集  16-  273  -275  2005/10/31
• 事業系廃棄物として排出されるPETボトルのリサイクル推進方策について

  竹中 康倫, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  16-  197  -199  2005/10/31
• 一時保管機能をもつ一般廃棄物最終処分システムの検討

  簗取 優丞, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  16-  316  -318  2005/10/31
• 県のホームページにおける双方向コミュニケーションの検討--青森・岩手県境不法投棄問題を例として

  長尾 由加利, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  16-  177  -179  2005/10/31
• 廃棄物等の発生抑制と排出抑制--趣旨説明 (廃棄物等の発生抑制と排出抑制)

  中村 恵子, 石井 一英, 古市 徹  廃棄物学会研究討論会講演論文集  2005-  89  -91  2005
• Proposal for a New Final Disposal System with Resource Storage in Closed System Disposal Facilities

  K. Ishii, T. Furuichi, N. Tanikawa  Proceedings of Sardinia 2005  2005  [Not refereed][Not invited]
  
• Application of Optimization Theory to Waste Stabilization Control in Community and Controllable Closed Disposal Facilities

  Y. Otsuka, K. Ishii, M. Hanashima, T. Furuichi  Proceedings of Sardinia 2005  2005  [Not refereed][Not invited]
  
• Verification of Closed System Disposal Facilities Based on Survey Data

  T. Kohinata, K. Ishii, R. Yanase, M. Hanashima, T. Furuichi  Proceedings of Sardinia 2005  2005  [Not refereed][Not invited]
  
• Development of a Case-Based Database System of Countermeasures for Soil and Groundwater Pollution

  Y. Satoh, T. Furuichi, K. Ishii, N. Tanikawa  The Twentieth International Conference on Solid Waste Technology and Management  934  -943  2005  [Not refereed][Not invited]
  
• Development of a Convenient Method of Monitoring Carbon Dioxide in Ambient Air at Landfill Sites Using Portable Openpath Type Analysis

  N. Tanikawa, T. Furuichi, K. Ishii  Proceedings of Sardinia 2005  2005  [Not refereed][Not invited]
  
• A Bio-Remediaton Lysimeter Examination in a Field with Dioxin Contaminated Soil Using New Mineral Salts

  I. Souta, T. Furuichi, K. Ishii, I. Sakagami, Y. Otonari  Organohalogen Compounds  67-  2527  -2529  2005  [Not refereed][Not invited]
  
• Proposal of Restoration and Reclamation System for Illegal Dumping and Uncontrolled Landfill Sites Based on Biotechnology

  K. Ishii, T. Furuichi, N. Tanikawa, R. Inaba  The Twentieth International Conference on Solid Waste Technology and Management  410  -419  2005  [Not refereed][Not invited]
  
• A Practical Application for Monitoring Methane in Ambient Air at Waste Disposal Facilities Using a Portable Open Path Analyzer

  N. Tanikawa, T. Furuichi, K. Ishii, K. Matsuo  Kalmar ECO-TECH '05  615  -622  2005  [Not refereed][Not invited]
  
• Numerical and Gene Analysis of River and Groundwater Contamination by Livestock Excreta

  K. Ishii, T. Furuichi, N. Tanikawa, Y. Matsuda  ISWA 2005 World Congress and Exhibition  2005  [Not refereed][Not invited]
  
• A Multi-Criteria Decision Analytic Process for the Evaluation of Remedial Countermeasures of Contaminated Site: a Case Study of Uncontrolled Landfill

  M.A.B. Promentilla, T. Furuichi, K. Ishii, N. Tanikawa  Proceedings of Sardinia 2005  2005  [Not refereed][Not invited]
  
• Proposal of Biological and Pysico-chemical Treatment Systems for Dioxins-contaminated Soils

  K. Ishii, T. Furuichi  Organohalogen Compounds  67-  1957  -1960  2005  [Not refereed][Not invited]
  
• An ANP-based Decision Analytic Model for Evaluation of Remedial Countermeasure Strategies of Contaminated Sites

  M.A.B. Promentilla, T. Furuichi, K. Ishii, N. Tanikawa  The Twentieth International Conference on Solid Waste Technology and Management  190  -199  2005  [Not refereed][Not invited]
  
• アンケート調査に基づく自治体搬入剪定枝の都市リサイクルシステムの構築

  河村 紀美子, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  15-  283  -285  2004/11/17
• 数値シミュレーションを用いた土壌・地下水汚染現場における汚染拡散防止対策の検討

  佐藤 康行, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  15-  1418  -1420  2004/11/17
• Pseudallescheria boydiiによるジベンゾフラン分解経路に関する研究

  中村 まこと, 石井 一英, 古市 徹  廃棄物学会研究発表会講演論文集  15-  1360  -1362  2004/11/17
• バイオリアクターによる土壌中ダイオキシン類分解処理の制約条件の検討

  石井 一英, 古市 徹, 谷川 昇  廃棄物学会研究発表会講演論文集  15-  1366  -1368  2004/11/17
• Pseudallescheria boydiiによる2,3,7,8-TCDDの分解特性と分解酵素に関する基礎的研究

  小池 啓太, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  15-  1363  -1365  2004/11/17
• 産業廃棄物不法投棄現場における浸出水流出経路調査への高密度電気探査の適用

  和田 卓也, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  15-  1406  -1408  2004/11/17
• Pseudallescheria boydiiのOCDD分解酵素の活性条件と精製方法に関する基礎的研究

  久保島 賢, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  15-  1369  -1371  2004/11/17
• 自治体の土壌・地下水汚染対策を支援するための事例データベースの設計

  佐藤 雄大, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  15-  1421  -1423  2004/11/17
• 被覆型最終処分場の埋立終了後における長期管理の考え方 (特集 最終処分場の新たな流れ)

  古市 徹, 石井 一英  いんだすと  19-  (11)  2  -5  2004/11
• On the Advance Benefit of Ultimate Land Use of the Landfill Site

  Mitsuo Kawaguchi, Toru Furuichi, Noboru Tanikawa, Kazuei Ishii  Proceedings of the Third Asian-Pacific Landfill Symposium in Kitakyushu  636  -640  2004  [Not refereed][Not invited]
  
• Bio-remediation Examination in a Field with Dioxin Contaminated Soils Using a Lysimeter

  Ikuo Souta, Toru Furuichi, Kazuei Ishii, Youji Otonari  Organohalogen Compounds  66-  1296  -1298  2004  [Not refereed][Not invited]
  
• Conceptual Modeling of a Database System of Countermeasures for Soil and Groundwater Contamination

  Yudai Satoh, Toru Furuichi, Kazuei Ishii, Noboru Tanikawa  Proceedings of the Third Asian-Pacific Landfill Symposium in Kitakyushu  261  -268  2004  [Not refereed][Not invited]
  
• Purification of Highly Chlorinated Dioxins Degrading Enzyme

  Kazuei Ishii, Toru Furuichi, Keita Koike, Masaru Kuboshima  Organohalogen Compounds  66-  1262  -1265  2004  [Not refereed][Not invited]
  
• Proposal of Watering Method for Waste Stabilization in Closed System Disposal Facilities by Using a Washout Model

  Kazuei Ishii, Toru Furuichi, Noboru Tanikawa  Proceedings of the Third Asian-Pacific Landfill Symposium in Kitakyushu  253  -260  2004  [Not refereed][Not invited]
  
• Development of a Bioreactor System for Treatment of Dioxins-contaminated Soils and Incinerated Residue

  Kazuei Ishii, Toru Furuichi, Masahiko Shioyama  Organohalogen Compounds  66-  1257  -1260  2004  [Not refereed][Not invited]
  
• Validation of Closed System Disposal Facilities Based on Survey Data

  Takashi Kohinata, Kazuei Ishii, Ryuji Yanase, Masataka Hamashima, Toru Furuichi  Proceedings of the Third Asian-Pacific Landfill Symposium in Kitakyushu  199  -206  2004  [Not refereed][Not invited]
  
• Role of Coupling Numerical Simulation and Resistivity Method in the Integrated Management System for Contaminated Site Remediation

  Kazuei Ishii, Toru Furuichi  ISWA 2004  2004  [Not refereed][Not invited]
  
• Reseach on a Method of Waste Stabilization Control in Community and Controllable Closed System Disposal Facilities

  Yoshikazu Otsuka, Kazuei Ishii, Masataka Hamashima  Proceedings of the Third Asian-Pacific Landfill Symposium in Kitakyushu  43  -50  2004  [Not refereed][Not invited]
  
• Study of Environmental Factors in Planning Kitchen Waste Biogasification Facilities

  Noboru Tanikawa, Toru Furuichi, Kazuei Ishii  ISWA 2004  2004  [Not refereed][Not invited]
  
• 『平成14年度廃棄物学会論文賞』受賞者講演「廃棄物起因の土壌・地下水汚染現場への数値シミュレーションと比抵抗法の適用」 (第14回廃棄物学会研究発表会) -- (廃棄物学会賞受賞者記念講演(論文賞・著作賞))

  石井 一英, 古市 徹, 和田 卓也  廃棄物学会研究発表会講演論文集  14-  1  -3  2003/10/22
• 土壌・地下水汚染診断修復総合データ管理システムの開発--汚染現場の3次元表示

  森下 兼年, 石井 一英, 古市 徹  廃棄物学会研究発表会講演論文集  14-  1210  -1212  2003/10/22
• クローズドシステム処分場の安定化促進のための散水-洗い出しモデルの実験的検討--散水強度と蒸発の影響について

  簗取 優丞, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  14-  1067  -1069  2003/10/22
• ダイオキシン類の微生物分解処理の実用化に向けた研究--処理後土壌の菌体消毒方法の確立と酵素による分解の検討

  松田 悠見, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  14-  1183  -1185  2003/10/22
• Pseudallescheria boydiiによる無塩素化ダイオキシン分解経路に関する研究

  中村 まこと, 石井 一英, 古市 徹  廃棄物学会研究発表会講演論文集  14-  1186  -1188  2003/10/22
• 半回転混合式培養装置によるダイオキシン汚染土壌の処理

  惣田 〔イク〕夫, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  14-  1177  -1179  2003/10/22
• 土壌・地下水汚染の調査・解析データモデルの構築とその実汚染現場への適用

  南部 稔, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  14-  1213  -1215  2003/10/22
• 廃棄物起因の地下水汚染調査における地形調査と高密度電気探査の重要性

  和田 卓也, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  14-  1219  -1221  2003/10/22
• ヒ素による土壌・地下水汚染対策のためのトレーサ試験と数値シミュレーションを用いた汚染拡散解析

  成川 政充, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  14-  1216  -1218  2003/10/22
• Monitoring of Methane and Carbon Dioxide in Ambient Air at Landfill Sites

  N. Tanikawa, T. Furuichi, K. Ishii  Proceedings Sardinia 2003,Ninth International Waste Management and Landfill Symposium  2003  [Not refereed][Not invited]
  
• A Study for Microbial Treatment of Dioxins-Polluted Soils by The Half-Rotation-Type Culture Apparatus

  I. Souta, T. Furuichi, K. Ishii, Y. Otonari  23rd International Symposium on Halogenated EnvironmentalOrganic pollutants and POPs  63-  293  -295  2003  [Not refereed][Not invited]
  
• Promotion of Waste Stabilization for Design of Community and Controllable Closed System Disposal Facilities by Using a Washout Model

  K. Ishii, T. Furuichi, N. Tanikawa  Proceedings Sardinia 2003,Ninth International Waste Management and Landfill Symposium  2003  [Not refereed][Not invited]
  
• Degradation of Dioxins Using Enzymes and Sterilization of Pseudallescheria boydii

  K. Ishii, T. Furuichi, Y.Matsuda  23rd International Symposium on Halogenated EnvironmentalOrganic pollutants and POPs  63-  260  -263  2003  [Not refereed][Not invited]
  
• クローズドシステム処分場の安定化促進方策としての散水--洗い出しモデルの提案 (第13回廃棄物学会研究発表会 講演論文集2) -- (埋立地安定化(2))

  石井 一英, 古市 徹, 本間 隆紀  廃棄物学会研究発表会講演論文集  13-  990  -992  2002/11/28
• 破砕不燃ごみ中の有機汚濁成分の短期溶出挙動に関する研究 (第13回廃棄物学会研究発表会 講演論文集2) -- (埋立地安定化(2))

  土師 賢之, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  13-  975  -977  2002/11/28
• 飛灰混じり土壌中ダイオキシン類の微生物分解条件と阻害要因に関する研究 (第13回廃棄物学会研究発表会 講演論文集2) -- (ダイオキシン微生物分解/土壌・地下水汚染)

  舟田 卓見, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  13-  1101  -1103  2002/11/28
• 廃棄物由来の土壌・地下水汚染対策のための住民参加型修復技術選択手法の提案 (第13回廃棄物学会研究発表会 講演論文集2) -- (土壌・地下水汚染)

  佐藤 雄大, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  13-  1152  -1154  2002/11/28
• 廃棄物に起因する汚染現場への三次元地下水数値解析手法の適用 (第13回廃棄物学会研究発表会 講演論文集2) -- (土壌・地下水汚染)

  小林 哲也, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  13-  1140  -1142  2002/11/28
• 土壌中ダイオキシン類の微生物分解条件に関する基礎的研究--培地成分とリアクターの攪拌条件の検討 (第13回廃棄物学会研究発表会 講演論文集2) -- (ダイオキシン微生物分解/土壌・地下水汚染)

  長田 志乃, 石井 一英, 古市 徹  廃棄物学会研究発表会講演論文集  13-  1098  -1100  2002/11/28
• ダイオキシン分解菌からの無塩化ダイオキシン分解酵素の精製に関する研究 (第13回廃棄物学会研究発表会 講演論文集2) -- (ダイオキシン微生物分解/土壌・地下水汚染)

  山形 英生, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  13-  1104  -1106  2002/11/28
• GISを活用した土壌・地下水汚染データ管理システムの実践的活用 (第13回廃棄物学会研究発表会 講演論文集2) -- (土壌・地下水汚染)

  森下 兼年, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  13-  1143  -1145  2002/11/28
• ダイオキシン分解菌の18S rDNA解析による菌種の同定とDF分解生成物の検討 (第13回廃棄物学会研究発表会 講演論文集2) -- (ダイオキシン微生物分解/土壌・地下水汚染)

  小池 啓太, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  13-  1095  -1097  2002/11/28
• 高密度電気探査を利用した廃棄物由来の土壌・地下水汚染調査 (第13回廃棄物学会研究発表会 講演論文集2) -- (土壌・地下水汚染)

  和田 卓也, 石井 一英, 古市 徹  廃棄物学会研究発表会講演論文集  13-  1137  -1139  2002/11/28
• 混合系微生物による各種ダイオキシンの分解について (第13回廃棄物学会研究発表会 講演論文集2) -- (ダイオキシン微生物分解/土壌・地下水汚染)

  惣田 〔アキ〕夫, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  13-  1110  -1112  2002/11/28
• Enzyme Purification from a Dioxin-Oxidizing Fungus

  K. Ishii, T. Furuichi, H. Yamagata, Y.Hayashi  22nd International Symposium on Halogenated Environmental Organic pollutants and POPs  58-  141  -144  2002  [Not refereed][Not invited]
  
• Study of Waste Stabilization in Community and Controllable Closed System Disposal Facilities by Using a Washout Model

  K. Ishii, T. Furuichi, N. Tanikawa, T. Honma  APLAS Seoul 2002, The 2nd Asian Pacific Landfill Symposium  416  -422  2002  [Not refereed][Not invited]
  
• Biodegradation of Dioxins in Fly Ash by Thermophilic Bacillus Midousuji

  S. Hoshina, K. Miyaji, H. Gohda, K. Ishii, T. Furuichi  22nd International Symposium on Halogenated Environmental Organic pollutants and POPs  58-  137  -140  2002  [Not refereed][Not invited]
  
• Analysis of Technical Problems and Their Countermeasures in Landfill sites

  K. Kotani, K. Ishii, T. Furuich, N. Tanikawa  APLAS Seoul 2002, The 2nd Asian Pacific Landfill Symposium  309  -316  2002  [Not refereed][Not invited]
  
• Characteristics of Degradation of Dioxins by Mix-Bacteria

  I. Souta, T. Furuichi, K. Ishii, K. Otonari  22nd International Symposium on Halogenated Environmental Organic pollutants and POPs  56-  387  -388  2002  [Not refereed][Not invited]
  
• Monitoring of Methane in Ambient Air as an Index of Stabilization at Landfill Sites

  N. Tanikawa, T. Oikawa, K. Ishii, T. Furuichi  APLAS Seoul 2002, The 2nd Asian Pacific Landfill Symposium  128  -131  2002  [Not refereed][Not invited]
  
• Degradation Conditions of Poly Chlorinated Dibenzo-p-Dioxins and Furans in Different Contaminated Soils for Bioreactor System

  K. Ishii, T. Furuichi, T. Funada, M. Shioyama  22nd International Symposium on Halogenated Environmental Organic pollutants and POPs  56-  379  -382  2002  [Not refereed][Not invited]
  
• Proposal for Planning Model of Final Disposal Systems

  K. Ishii, T. Furuichi  ISWA 2002, Appropriate Environmental and Solid Waste Management and Technologies for Developing Countries  2-  831  -838  2002  [Not refereed][Not invited]
  
• クローズドシステム処分場における散水による安定化促進の検討--焼却灰中COD洗い出し条件の考察 (第12回廃棄物学会研究発表会 講演論文集2) -- (埋立地安定化)

  志賀 光洋, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  12-  974  -976  2001/10/31
• 土壌・地下水汚染調査における地形・地質構造のモデル化手法と予測修復への適用 (第12回廃棄物学会研究発表会 講演論文集2) -- (土壌・地下水汚染)

  石井 邦幸, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  12-  1097  -1099  2001/10/31
• 分離菌株によるダイオキシン類の分解特性 (第12回廃棄物学会研究発表会 講演論文集2) -- (PCB・ダイオキシン処理)

  惣田 〔イク〕夫, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  12-  1073  -1075  2001/10/31
• 数値シミュレーションを用いた感度解析による汚染現場のモデル化の検討 (第12回廃棄物学会研究発表会 講演論文集2) -- (土壌・地下水汚染)

  南部 稔, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集  12-  1100  -1102  2001/10/31
• 最終処分システムを構想支援するための計画モデルの提案 (第12回廃棄物学会研究発表会) -- (廃棄物管理・計画など)

  石井 一英, 古市 徹, 蛯名 由美子  廃棄物学会研究発表会講演論文集  12-  235  -237  2001/10/31
• Acremonium sp. からのダイオキシン分解酵素の精製及び諸性質の検討

  宇都宮 毅, 中宮 邦近, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  12-  (2)  1151  -1153  2001/10/01
• 好熱菌の Dioxin dioxygenase と Dihydroxybiphenyl dioxygenase の検索

  保科 定頼, 河野 緑, 古市 徹, 石井 一英, 郷田 浩志, 宮地 和夫  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  12-  (2)  1154  -1156  2001/10/01
• ダイオキシン類汚染土壌の微生物分解に及ぼす影響要因に関する実験的考察 - Acremonium sp.による微生物分解特性 -

  高橋 正典, 中宮 邦近, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  12-  (2)  1076  -1078  2001/10/01
• 汚染診断修復システムにおける GIS による総合データ管理システムの活用

  森下 兼年, 和田 卓也, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  12-  (2)  1103  -1105  2001/10/01
• 土壌・地下水汚染の修復技術選択フローのケーススタディ

  寺尾 康, 鈴木 隆弘, 小谷 克己, 峠 和男, 佐々木 哲男, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  12-  (2)  1106  -1108  2001/10/01
• 廃棄物の最終処分システムとしての処分場の未来像

  古市 徹, 石井 一英  都市清掃  54-  (242)  379  -382  2001/07
• Degradation of 3CI-Dioxin and The Dioxin Pathway by Two Bacteria

  I. Souta, T. Furuichi, K. Ishii, K. Nakamiya  21st International Symposium on Halogenated EnvironmentalOrganic Pollutants & POPS  245  -246  2001  [Not refereed][Not invited]
  
• A Study on Remedial Alternatives of Soil and Groundwater Contamination Caused by Improperly Controlled Landfill Sites−A Numerical Simulation Case Study

  K. Ishii, T. Furuichi, T.Imai  Proceedings of Sardinia 01, Eighth International Waste Management and Landfill Symposium  III-  723  -734  2001  [Not refereed][Not invited]
  
• Biodegradation of an Actual Dioxin -Contaminated Soil by Acremonium sp

  K. Nakamiya, T. Furuichi, K. Ishii  21st International Symposium on Halogenated EnvironmentalOrganic Pollutants & POPS  234  -237  2001  [Not refereed][Not invited]
  
• Feasibility Studies on Community and Controllable Closed System Disposal Facilities

  T. Furuichi, K. Ishii, K. Kotani  Proceedings of Sardinia 01, Eighth International Waste Management and Landfill Symposium  I-  329  -338  2001  [Not refereed][Not invited]
  
• Dioxin Dioxygenase & Dihydroxybiphenyl Dioxygenasegene Segments in Bacillus Novel Thermophile that Degrades TCDD

  S. Hoshina, M. Kono, D. H. Figurski, I. B. Weinstein, K. Ishii, T. Furuichi  21st International Symposium on Halogenated EnvironmentalOrganic Pollutants & POPS  197  -199  2001  [Not refereed][Not invited]
  
• Study of Modeling and Numerical Sensitivity Analysis at a Contaminated Site

  M. Nambu, T. Furuichi, K. Ishii, T. Imai  Proceedings of the 2001 Co−conference of the Korean Solid Waste Engineering Society  75  -82  2001  [Not refereed][Not invited]
  
• 廃棄物に起因する土壌・地下水汚染現場への数値シミュレーションの適用例

  古市 徹, 石井 一英, 今井 紀和, 小谷 克己, 寺尾 康, 森下 兼年, 和田 卓也  衛生工学シンポジウム論文集  8-  46  -51  2000/11/01
• 土壌・地下水汚染の修復プロセス選択フローに関する考察

  小谷 克己, 峠 和男, 寺尾 康, 岸野 宏, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  11-  (2)  1243  -1245  2000/10/10
• 土壌・地下水汚染調査における水理地質構造のパターン化の検討 〜 地質学的見地から 〜

  福本 二也, 和田 卓也, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  11-  (2)  1237  -1239  2000/10/10
• 汚染診断修復システムにおけるGIS汚染データ管理システムの提案

  森下 兼年, 川原 恵一郎, 石井 一英, 古市 徹  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  11-  (2)  1240  -1242  2000/10/10
• 汚染物質特性を考慮した数値シミュレーションによる土壌・地下水汚染修復対策の選択

  小林 哲也, 古市 徹, 石井 一英, 今井 紀和, 平川 猛  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  11-  (2)  1234  -1236  2000/10/10
• クローズドシステム処分場のモデル設計による計画要因の検討

  本間 隆紀, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  11-  (2)  1187  -1189  2000/10/10
• 高圧水銀ランプによるダイオキシン類の分解特性

  舟田 卓見, 中宮 邦近, 石井 一英, 古市 徹  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  11-  (2)  1068  -1070  2000/10/10
• ダイオキシン類汚染土壌の液相抽出と微生物分解に関する研究

  岡田 起平, 中宮 邦近, 石井 一英, 古市 徹  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  11-  (2)  836  -838  2000/10/10
• 新規分離菌株及びPCB分解菌によるダイオキシン類の分解

  惣田 〓夫, 古市 徹, 石井 一英, 中宮 邦近, 保科 定頼  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  11-  (2)  833  -835  2000/10/10
• ダイオキシン類の脱窒槽汚泥による分解特性と連続処理化に関する研究

  山形 英生, 中宮 邦近, 石井 一英, 古市 徹  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  11-  (2)  848  -850  2000/10/10
• Biodegradation of Dioxins by Activated Sludge

  K. Nakamiya, K. Ishii, K. Yoshizaki, T. Furuichi  20th International Symposium on Halogenated EnvironmentalOrganic Pollutants & POPS  468  -471  2000  [Not refereed][Not invited]
  
• Solvent-Washing of Dioxin-Contaminated Soil and Ultraviolet Treatment of the Extracted Dioxins

  K. Nakamiya, K. Ishii, K. Yoshizaki, T. Furuichi  20th International Symposium on Halogenated EnvironmentalOrganic Pollutants & POPS  423  -426  2000  [Not refereed][Not invited]
  
• A Study of Remedial Alternatives for Soil and Groundwater Contamination by Numerical Simulation, The First Step Analysis to the Inappropriate Storage Site

  K. Ishii, T. Furuichi, T. Imai, Kuniyuki. Ishii  The 4th Korea-Japan Joint English Session, Proceedings of the 2000 Annual Conference of the Korea Solid Waste Engineering Society(2)  19  -23  2000  [Not refereed][Not invited]
  
• Survey of soil and groundwater contamination due to waste disposal - A study of contaminant diagnosis remediation system

  T Furuichi, K Ishii, T Fukumoto, T Wada  GROUND WATER UPDATES  455  -456  2000  [Not refereed][Not invited]
   

  When surveying and diagnosing me contamination of soil and groundwater caused by waste disposal, a number of typical waste-related problems will tend to occur in the initial period. These result from 1) lack of feasibility study (topography, geological conditions, contaminants), 2) diversity of contaminants (chemical and physical properties, subsurface water, and behavior in the environment), and 3) lack of a sense of responsibility in remediation. To solve those problems, it is important to implement a policy, making a purification plan in an early stage of the remediation project, examine the surveying goals in line with an efficient purification plan, and establish the items and index regarding the quantity and quality of required data. With a view to standardizing the survey of soil and groundwater contamination, the authors have proposed a "Contaminant Diagnosis Remediation System([1]) ([2])." By creating a survey chart and a management and operation system of the survey data, based on GIS (Geographic Information System), they suggested efficient survey plan to deal with soil and groundwater contamination by waste, which involves various complex problems.
• 土壌・地下水汚染現場への汚染診断システムの適用

  古市 徹, 石井 一英, 寺尾 康, 森下 兼年, 和田 卓也, 小谷 克己, 今井 紀和  衛生工学シンポジウム論文集  7-  53  -58  1999/11/01
• 難水溶性有機化合物原液の鉛直浸透挙動のモデル化と汚染修復への応用

  石井 一英, 古市 徹, 山本 麻衣子  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  10-  (2)  1086  -1088  1999/10/10
• 数値シミュレーションを用いた土壌・地下水汚染修復技術の選択方法に関する研究

  石井 邦幸, 石井 一英, 古市 徹, 今井 紀和  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  10-  (2)  1089  -1091  1999/10/10
• 汚染診断修復システムにおけるGISを用いたデータ管理手法について

  森下 兼年, 和田 卓也, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  10-  (2)  1099  -1101  1999/10/10
• 土壌・地下水汚染の修復プロセス選択基準に関する考察

  寺尾 康, 岸野 宏, 小谷 克己, 峠 和男, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  10-  (2)  1102  -1104  1999/10/10
• 立地選定と住民参加に配慮した最終処分場建設手続き手法の提案

  蛯名 由美子, 古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  10-  (1)  183  -185  1999/10/10
• バイオリアクターによるダイオキシン分解

  中宮 邦近, 石井 一英, 古市 徹, 保科 定頼, 惣田 〓夫  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  10-  (2)  880  -882  1999/10/10
• PCB分解菌によるダイオキシン類の分解とその特徴

  惣田 〓夫, 古市 徹, 石井 一英, 中宮 邦近  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  10-  (2)  886  -888  1999/10/10
• First Step toward Biodegradation of Dioxins by Means of a reactor

  K. Nakamiya, S. Hoshina, I. Souta, K. Ishii, T.Furuichi  Proceedings of Dioxin 99,19th International Symposium on Halogenated Environmental Organic Pollutans and POPs  40-  535  -538  1999  [Not refereed][Not invited]
  
• 廃棄物関連の土壌・地下水汚染を対象とした汚染診断・修復システムの開発

  古市 徹, 東海 明宏, 石井 一英, 寺尾 康, 和田 卓也, 森下 兼年  衛生工学シンポジウム論文集  6-  15  -20  1998/11/01
• 廃棄物関連の土壌・地下水汚染対策のシステム化におけるスコーピング(浄化構想計画)の考え方

  石井 一英, 古市 徹, 西村 絵里  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  9-  (2)  1016  -1018  1998/10/10
• 土壌・地下水汚染診断修復支援システムにおける修復プロセスの選択手順

  古市 徹, 石井 一英, 寺尾 康, 岸野 宏  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  9-  (2)  1013  -1015  1998/10/10
• 廃棄物に関連する土壌・地下水汚染調査の問題点 -土壌・地下水汚染診断・修復支援システム構築の試み-

  古市 徹, 石井 一英, 和田 卓也, 森下 兼年  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  9-  (2)  1025  -1027  1998/10/10
• 土壌・地下水汚染のGISデータ管理システムの開発

  古市 徹, 石井 一英, 森下 兼年, 寺尾 康, 和田 卓也  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  9-  (2)  1022  -1024  1998/10/10
• 廃棄物に関連する土壌・地下水汚染の診断システムの概要

  古市 徹, 石井 一英  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  9-  (2)  1019  -1021  1998/10/10
• 廃棄物に起因する土壌・地下水汚染の診断システムと数値シミュレ-ション (特集 土壌・地下水汚染)

  古市 徹, 石井 一英  環境管理  34-  (6)  567  -574  1998/06
• 飽和-不飽和2次元地下水流における難水溶性有機物質原液の存在量分布に関する実験的研究

  石井 一英, 古市 徹, 田中 信壽  廃棄物学会研究発表会講演論文集 = Proceedings of the Annual Conference of the Japan Society of Waste Management Experts  8-  (2)  951  -954  1997/10/10
• 有機化合物による土壌・地下水汚染に関する研究動向と今後の課題

  石井 一英, 田中 信寿  衛生工学シンポジウム論文集  3-  77  -82  1995/11/01
• Investigations and Counter-Measures for the Inappropriate Landfill Site in Japan

  K. Ishii, T. Furuichi, K. Morisita, T. Fukumoto  Proceedings of Sardinia 99, Seventh International Waste Management and Landfill Symposium  IV-  487  -494  [Not refereed][Not invited]
  

Books etc

• バイオマスコミュニティプランニング : ローカルSDGsの実践

  古市, 徹, 石井, 一英 
  環境新聞社 2022/03 (ISBN: 9784860184131) 178p
• エネルギーとバイオマス～地域システムのパイオニア～

  古市徹, 石井一英著 
  環境新聞社 2018/11
• エコセーフなバイオエネルギー－産官学連携事業の実際－

  古市 徹, 石井一英 (Editor)
  環境新聞社 2015
• 環境汚染現場の修復〜実務者のための新アプローチ〜

  古市徹編著 (Contributor)
  オーム社 2013/02
• クローズドシステム処分場技術ハンドブック

  花嶋正孝, 古市徹監修 (Contributor)
  オーム社 2012/12
• バイオマス地域循環−再生可能エネルギーのあるべき姿−

  古市徹, 西則雄編著 (Contributorpp.42-51)
  環境新聞社 2012/10
• 循環型社会の廃棄物系バイオマス−利活用事業成功のためのシステム化−

  古市徹監修 (Contributor)
  環境新聞社 2010/09
• 日本の最終処分場（英文対訳付き）

  花嶋正孝, 古市徹監修 (Contributor)
  環境産業新聞社 2009/12
• 不法投棄のない循環型社会づくり−不法投棄対策のアーカイブス化−

  古市徹, 西則雄編著 (Contributor)
  環境新聞社 2009/10
• 健康と環境の工学

  北海道大学工学部環境衛生工学コース編 (Contributor)
  技報堂出版 2008
• 地盤環境工学ハンドブック

  嘉門雅史, 日下部治, 西垣誠編集 (Contributor)
  朝倉書店 2007
• バイオリサイクル−循環型共生社会への挑戦−

  古市徹, 西則雄編著 (Contributor)
  環境新聞社 2006
• 地下水・土壌汚染の基礎から応用−汚染物質の動態と調査・対策技術−

  日本地下水学会編 (Contributor)
  理工図書 2006
• 絵で見るクローズドシステム処分場

  花嶋正孝, 古市徹監修 (Contributor)
  環境新聞社 2006
• 土壌・地下水汚染−循環共生をめざした修復と再生−

  古市徹監修 (Contributor)
  オーム社 2006
• みんなのクローズドシステム処分場

  花嶋正孝, 古市徹監修, クローズドシステム処分場開発研究会編 (Contributor)
  オーム社 2004
• はじめてのクローズドシステム処分場−被覆型最終処分場の計画と事例

  古市徹, 花嶋正孝監修, クローズドシステム処分場開発研究会編 (Contributor)
  オーム社 2002
• 有害廃棄物による土壌・地下水汚染の診断

  古市徹監修 (Contributor)
  環境産業新聞社 2000

Association Memberships

• 廃棄物学会   土木学会   地下水学会   

Research Projects

• 廃棄物最終処分場の長寿命化に伴う機能検査と気候変動適応策

  環境研究総合推進費

  Date (from‐to) : 2019/04 -2022/03
• 1, 4-ジオキサン地下水汚染修復の予測・評価のための統合的数値判定手法の開発

  環境省：環境研究総合推進費

  Date (from‐to) : 2015/04 -2018/03 

  Author : 石井 一英
• メタン取扱施設における安全管理のための簡便メタンモニタリング手法の開発

  文部科学省：文部科学研究費補助金, 基盤研究(B)（一般）

  Date (from‐to) : 2009/04 -2012/03 

  Author : 石井 一英
• Development of community-based sound material-cycle systems with energy linkage using waste and unused biomass

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research

  Date (from‐to) : 2010 -2012 

  Author : FURUICHI Toru, ISHII Kazuei, WENG Yu-chi

   

  This study developed community-based sound material-cycle systems with energy linkage using waste and unused biomass at an industrial complex in Ishikari New Bay area, Hokkaido, Japan, to achieve Advanced Biomass Community Dream in Hokkaido (ABC community vision) that have been proposed by us. In particular, we proposed 1) a method for determining the capacity of biogas plant that affects the economic feasibility by estimating statistically the amount of biomass, such as kitchen and food wastes, collected from the studied area, and 2) a strategy for improved energy linkage in the industrial complex.
• 最終処分場安全管理のための有害ガス簡便計測手法の開発

  日本学術振興会：科学研究費助成事業

  Date (from‐to) : 2007 -2008 

  Author : 谷川 昇, 古市 徹, 石井 一英

   

  平成19年度に、提案した有害ガスモニタリング手法の前提条件の成立を一層明確化するとともに、提案手法の現場への適用を図るために、(1)2つの一般廃棄物最終処分場における埋立ガス中の有害ガス濃度のメタン濃度に対する濃度比(メタン濃度比)の測定場所による変動と経時変化(2)埋立廃棄物掘削作業時の提案手法によるガスモニタリングの適用性(3)クローズドシステム一般廃棄物最終処分場(CS処分場)内の作業環境モニタリングへの適用可能性を検討したところ、次の結果が得られた。 (1)同一地点から発生する埋立ガス中の有害ガス(硫化水素)のメタン濃度比は、経時的な減少傾向がみられた。また、同一最終処分場においては、埋立終了後の経過時間が長い場所のメタン濃度比は小さくなる傾向がみられた。ただし、2最終処分場におけるメタン濃度比は10^<-10>〜10^<-8>の範囲であり、提案モニタリング手法でのメタンを指標とする前提条件は成立していた。 (2)埋立廃棄物の掘削現場において、風向風速に配慮しながら提案モニタリング手法によってメタン濃度を計測すれば、掘削現場の作業環境における有害ガスの潜在的な危険性を予見でき、提案モニタリング手法が、現場での安全管理に適用できることが示された。 (3)(a)中間処理されないごみ、(b)焼却残渣・破砕不燃ごみ、(c)不燃ごみ粗大ごみ破砕残渣を埋め立てている3つのCS処分場において、提案手法によってメタン濃度のモニタリングを行った。その結果、それぞれCS処分場において約2〜3ppm、3〜5ppm、20〜1000ppmの範囲のメタン濃度の変化が把握され、提案手法がCS処分場内の作業環境モニタリングに適用できることを明らかにした。
• Development of social technologies for restoration and reclamation of illegal dumping sites

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research

  Date (from‐to) : 2004 -2006 

  Author : FURUICHI Toru, TANIKAWA Noboru, ISHII Kazuei

   

  The objective of this study is to develop social technologies for restoration and reclamation of illegal dumping sites. Especially, this study developed the following tools that are required to actually discuss on restoration and reclamation methods of the contaminated sites. 1) Development of a management tool of illegal dumping cases to analyze and clarify social backgrounds of illegal dumpings, liability issues, transportation roots of waste materials, etc. 2) Development of a multi communication tool using homepage to promote restoration and reclamation of illegal dumping sites. Development of a needs analysis method for land usage after restoration of illegal dumping sites. 3) Development of multi-criteria decision analytic process using ANP (analytic network process) and fuzzy method considering both technical and social criteria. 4) Development of a numerical simulation method for prediction of restoration effectiveness. The following results were obtained. 1)A management tool that is able to deal with and analyze illegal dumping cases comprehensively was developed. 2)A multi communication tool using homepage was proposed and applied to actual problems on information service at an illegal dumping site. As a result, the tool provided appropriate information according to social needs, and had an effect on providing public awareness on problems of the illegal dumping site. A needs analysis method was proposed to investigate land usage after restoration of illegal dumping sites by questionnaire investigation. 3)A comprehensive decision analysis method using fuzzy methods and ANP was developed for complex problems such as selection of restoration and reclamation alternatives. 4)A numerical simulation method was developed for prediction of restoration effectiveness by vertical walls, capping and anaerobic bioremediation. Based on actual case study of illegal dumping sites, this study developed a social technology for effective restoration and reclamation of illegal dumping sites, integrating both technical and social aspects.
• バイオマス資源の循環管理システムの提案

  日本学術振興会：科学研究費助成事業

  Date (from‐to) : 2004 -2005 

  Author : 古市 徹, 谷川 昇, 石井 一英

   

  本研究の目的は、循環(3Rと適正処理)という目標に合致した新たな物流管理システムを提案することであり、特に,生ごみなどのバイオマス資源を最大限に活用するバイオマス資源の循環管理システムの提案を行うことである。 (1)大都市および中・小都市(約200自治体)を対象に,生ごみの資源化の現状,今後の生ごみ資源化の考え方について,アンケート・ヒアリング調査,および生ごみ資源化を中心とした廃棄物管理シナリオの解析を行った. (1)大都市(14政令都市を対象)に対する結果 大都市においては,現在,家庭系・事業系生ごみの資源化を行っている自治体はごくわずかであった.一方,資源化を検討する際には,堆肥化については,製品としての堆肥の需要先に懸念があることなどから,現実問題としては,バイオガス化を選択する傾向が見られた.シナリオ解析の結果,バイオガス化施設のコストが問題となったが,焼却施設更新時に,焼却施設に併設することが,コストや環境影響面で,メリットのあることを示した. (2)中小都市に対する結果 生ごみ資源化を実施している17市町村および実施していない200市町村に対するアンケート調査では,それぞれ,7市町村(回答率41%),142市町村(回答率71%)の回答が得られた.生ごみを資源化している市町村では,いずれも堆肥化が行われていた.この市町村では,当初,「分別協力がえられるかどうか」について懸念していたが,施設稼働後では,「堆肥の需要先」を課題している傾向が見られた. (2)堆肥利用促進因子を調査するために,札幌市の約1300件の耕種農家に対して,生ごみ等の有機系廃棄物を原料とした堆肥の利用について,アンケート調査を行った(有効回答率は約36%).その結果,51%の農家が現在堆肥を利用しており,22%が条件さえ整えば,堆肥を利用すると回答した(それ以外は,堆肥を利用する意思がなかった)、堆肥利用促進のためには,(1)品質を良好に安定させるための発酵期間の確保や客観的な成分分析の実施が必要であること,(2)散布の手間を解消するために,委託業者を利用できる仕組みにすること,(3)散布効果の実証試験を行っていく必要があることがわかった. 以上より,大都市・中小都市ともにその地域特性に応じた,バイオマス資源としての生ごみを中心とした廃棄物管理システムの構築が可能であることを示した.また,その際に課題となる資源化物の需要,資源化技術のコストについて,解決策を提案することができた.
• Evaluation and optimization of biogasification technology for kitchen waste to promote sound material-cycle society

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research

  Date (from‐to) : 2003 -2005 

  Author : TANIKAWA Noboru, FURUICHI Toru, ISHII Kazuei, KOMATSU Toshihiro, KAWAKAMI Hiroyoshi

   

  1. We have investigated biogasification facilities for kitchen garbage and livestock excreta in Japan and Europe. The biogasification evaluation items which can evaluates quantitatively the effect of biogasification for reduction of the environmental burden and the restraint of the natural resource consumption were developed. 2. At three biogasification facilities for kitchen garbage in Hokkaido, we have continuously monitored the volume of biogas, concentrations of methane and carbon dioxide in the biogas, the odor from the facilities, concentrations of BOD, COD, SS, total nitrogen, and coliform bacteria count in liquid residuum and treated water, all of which is the component of the biogasification evaluation item. The methane concentration in the biogas, which varied according to the facilities, was about from 55 to 60 %. The amount of methane generated from one ton of kitchen garbage was about from 80 to 100 m^3. There were the differences in the level of odor and water pollutants emitted from the facilities as various deodorizing and wastewater-treatment equipments were adopted. However, the amount of biogas from 1 ton of kitchen garbage and concentrations of methane and carbon dioxide in biogas, at each facility did not vary much across the ages. Liquid residuum was properly processed at all of the three facilities, thus their treated waste water amply fulfilled the national standard of discharge water. 3. The amount of methane generated from kitchen garbage varied vastly by the quality of garbage. Thus we concluded that the cooperation from the residents to separately discharge the kitchen waste is indispensable in order to improve the efficiency of biogasification. 4. We have developed the materials and manufacturing method of the polymer membrane that can separate methane and carbon dioxide. Therefore, we have obtained some fundamental information to practically apply the methane concentrating device that applies the membrane to control the methane level in the biogas to an optimal magnitude according to the intended end-usages.
• Development of the Investigation-Numerical Simulation Method for Remedial Alternatives in Soil and Groundwater Contamination

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research

  Date (from‐to) : 2000 -2002 

  Author : FURUICHI Tohru, ISHII Kazuei, TANIKAWA Noboru, TOKAI Akihiro, TERAO Yasushi

   

  Soil and groundwater contamination caused by waste materials containing used oils and solvents is an urgent and crucial concern. To remedy the contaminated sites effectively, it is very important to select a proper countermeasure based on results of investigation and its analysis. In this study, the investigation-numerical simulation method was developed as a fundamental technology for selection of remedial alternatives. The effectiveness of the method was evaluated. In the first year, a modeling method for geographical feature and geological conditions at the contaminated sites was developed for making an assumption about groundwater flow and contaminant transport. It was shown that schematic geographical and geological models at the real contaminated sites could be developed, based on topographical map, tectonic map, field investigations and so on. The model was used for planing of more detailed investigations in the next stages. In the second year, three-dimensional numerical simulation was aplied to the real contaminated site, where the first and second aquifers are in isolation and contaminants are spread to the second aquifer. Therefore, we had to exmaine the groundwater flow and contaminant transport in the second aquifer more in detail by the three-dimensional analysis than the semi-three-dimensional analysis. Through the analysis, a new procedure for application of the three-dimensional numerical simulation to real contaminated sites was developed. In the last year, the cross relationships among investigation, analysis and countermeasure were elucidated by a "data model". The data Model means that all processes from investigations to countermeasures could by systematiezed. In particular, a detailed data model from investigation to analysis was developed. Using the detailed data model, contaminant distributions were estimated at an illegal damping site. As a result, a method of developing the data model and its usefulness were confirmed. Consequently, procedures from investigation to analysis (numerical simulation of groundwater flow and contaminant transport) were developed. The new investigation-numerical simulation method was successfully developed as a fundamental technology for selection of remedial alternatives.
• 生活環境アセスメントを支援する土壌・地下水汚染予測評価手法の開発

  文部科学省：文部科学研究費補助金, 奨励研究(A)

  Date (from‐to) : 1999/04 -2001/03 

  Author : 石井 一英
• 循環を軸とした都市代謝システムの耐リスク性

  日本学術振興会：科学研究費助成事業

  Date (from‐to) : 1999 -2001 

  Author : 東海 明宏, 石井 一英, 古市 徹

   

  本年度においては、標記のテーマに関し、有機系廃棄物のリサイクルシステムを事例にして、健全性評価の構造と手順を明確に定義するとともに、道央地域の廃棄物処理広域化ブロックに適用した。 文献調査により、いままでのリサイクルシステムの評価構造を整理するとともにシステムの目標として「健全性」が重要であることを提案し、その具体化のための指標構造を検討した。廃棄物工学、畜産学、土木工学、システム工学の分野等において開発されたシステム診断指標、リスク指標を参照しつつ、有機系廃棄物のリサイクルシステムの健全性を網羅的に表現する指標を整理した。リサイクルにおいて支配的な(優先的に考慮すべき)個別指標と総合指標に分類し、総合指標としては、評点法にもとづく多属性効用に基づく指標の開発事例等を整理した。 ついで、提案した評価構造の確認のために専門家を対象としたデルファイアンケートを行い、得られた結果を階層分析法によって、健全性評価を実施する手順をまとめた。 最後に、健全性手法を道央地域で発生する有機性廃棄物に適用し、健全性の観点から見たシステム代替案について検討した結果、対象地域全域で発生する有機系廃棄物を集中的にリサイクルするシステムが健全性の観点からはより望ましいことがわかった。
• Uncertainty analysis for Predicting Environmental Fate and Exposure of Chemicals

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research

  Date (from‐to) : 1997 -1998 

  Author : TOKAI Akihiro, NAKANISHI Junko, MASUNAGA, ISHII Kazuei, FURUICHI Tohru

   

  Through this study, we have obtained following results. (l)Based on the method of multivariate analysis on the ambient environmental concentration of chemicals, we clarified the dominant variables that governs the level of the concentration in the water and sediment. Using this results, we showed the possibility for estimating ambient environmental concentration in terms of production volume and physicochemical properties of chemicals. (2) We have developed watershed modeling tool with the purpose of the reduction of the uncertainty coming from the modeling process of phenomena. Employing the theory of Bayes', we clarified the priority parameters that related to the prediction of fate and exposure of chemicals. (3)Using watershed modeling tool, the benefit of the reduction of the uncertainty associated with fate and exposure of chemicals were estimated at the real watershed environment.