Ph. D, Hokkaido University

Manure management

資源循環

Biomass

Torrefaction

Carbonization

Organic waste

Biochar

Composting

Environmental Science/Agriculture Science, Agricultural environmental engineering and agricultural information engineering

Environmental Science/Agriculture Science, Environmental agriculture

Life Science, Plant nutrition and soil science

Bachelor's degree program, School of Agriculture

Master's degree program, Graduate School of Agriculture

Doctoral (PhD) degree program, Graduate School of Agriculture

Sep. 2020, 一般社団法人農業食料工学会, 研究奨励賞
低温酸化プロセスを用いた廃棄物系バイオマスのバイオ固形燃料化技術の開発

Realizing self-sustained biomass gasification in a lab-scale downdraft reactor for compact CHP applications
Takanori Itoh; Shota Hanabusa; Kazunori Iwabuchi
PLOS One, 21, 2, e0343490, e0343490, Public Library of Science (PLoS), 27 Feb. 2026, [Peer-reviewed], [Lead author], [International Magazine]
English, Scientific journal, Miniaturizing biomass gasifiers is key to enabling household-scale combined heat and power (CHP) systems integrated with solid oxide fuel cells (SOFCs), yet achieving self-sustained gasification at this scale is challenging due to severe heat losses. This study evaluates the self-sustaining potential of a lab-scale moving-bed downdraft gasifier using charcoal, across an equivalence ratio (ER) range of 0.47–0.65. Stable operation was achieved at ER = 0.47–0.60, with oxidation zone temperatures reaching 800–1000 °C. As ER increased, product gas performance improved, with CO and H ₂ concentrations of 15% and 5% at ER = 0.60, yielding a lower heating value of 2.60 MJ/Nm ³ , carbon conversion efficiency of 74.4%, and cold gas efficiency of 48.4%. Performance remained below literature values, primarily due to limited reduction zone temperatures (~600 °C), likely caused by incomplete oxygen conversion (residual O ₂ : 5.9%) and significant heat losses (~30.5%). Thermal analysis showed that reducing residual O ₂ below 1% could theoretically raise temperatures by nearly 1000 °C. These findings demonstrate the feasibility of lab-scale autothermal gasification and identify oxygen utilization and thermal management as key levers for future ultra-small-scale CHP applications.

Mixing biochar with compost biofilters to improve removal of ammonia
Yunsik Shin; Takanori Itoh; Dai Hanajima; Kazunori Iwabuchi; Mahmudul Islam Piash
Journal of Material Cycles and Waste Management, Springer Science and Business Media LLC, 21 Feb. 2026, [Peer-reviewed], [International Magazine]
English, Scientific journal

Enhancing Molybdenum Availability for Nitrogen Fixation with Manure Biochar: Effect on Soil Conditions and Nutrient Uptake
Mahmudul Islam Piash; Moeka Abe; Takanori Itoh; Kazunori Iwabuchi; Toshihiro Watanabe; Hayato Maruyama
Journal of Soil Science and Plant Nutrition, 25, 4, 9757, 9767, Springer Science and Business Media LLC, 28 Oct. 2025, [Peer-reviewed], [Corresponding author], [International Magazine]
English, Scientific journal, 43535203

Efficacy of bottle gourd (Lagenaria siceraria) leaf extract in protecting against cabbage looper (Trichoplusia ni) (Lepidoptera: Noctuidae) infestation
Mst. Samia Sultana; Naoto Shimizu; Takanori Itoh; Kazunori Iwabuchi
Crop Health, 3, 1, Springer Science and Business Media LLC, 23 May 2025, [Peer-reviewed], [International Magazine]
English, Scientific journal, Abstract

Cabbage (Brassica oleracea L.) crops are frequently attacked by cabbage looper larvae (Trichoplusia ni), which severely reduce cabbage production. This experiment was conducted in the late spring crop season from April 15, 2024, to August 20, 2024, at the Field Science Center for the Northern Biosphere, Hokkaido University, Japan. In this study, the efficacy of an ethanolic extract of bottle gourd (Lagenaria siceraria (Molina) Standl.) leaves was compared with those of the chemical insecticide permethrin 3.2 EC and aqueous dimethyl sulfoxide (DMSO; the control). The experiment was carried out using a randomized complete block design in which each treatment comprised three replications consisting of 24 plants in total. Compared with the control, the bottle gourd leaf extract had high biopesticide activity against cabbage looper, increasing the cabbage yield by 15.98%. The yield was almost equal to that achieved with Permethrin 3.2 EC. Compared with the control, the application of the extract significantly decreased looper larval infestation in field-grown cabbage by 41.18%, 39.71%, 52.08%, and 37.96% at the fifth, sixth, seventh, and eighth weeks, respectively. Five possible biopesticide compounds, namely, apigenin-7-O-glucoside, indole-3-butyric acid, strychnine, phytol and hexadecanoic acid, were identified in the ethanolic extracts of bottle gourd leaves by liquid chromatography–mass spectrometry analysis. Bottle gourd leaf extract has potential as an environmentally friendly and sustainable alternative to toxic chemical pesticides for controlling cabbage looper infestation.

Superior nutrient recovery and release by chicken manure-derived biochar over hydrochar and compost for soil fertilization
Mahmudul Islam Piash; Takanori Itoh; Kazusa Abe; Kazunori Iwabuchi
Geoderma Regional, 40, e00906, e00906, Elsevier BV, Mar. 2025, [Peer-reviewed], [Lead author], [International Magazine]
English, Scientific journal

Livestock Manure Compost Mixed with Biochar: Efficient Pelleting and Pellet Production Characteristics
Kenichi Furuhashi; Kosuke Ueda; Taiyo Hatagami; Takanori Itoh; Takaya Miyazaki; Yutaka Kaizu; Kenji Imou
Waste and Biomass Valorization, 15, 8, 4927, 4936, Springer Science and Business Media LLC, 13 Apr. 2024, [Peer-reviewed], [International Magazine]
Scientific journal, Abstract

Biochar is difficult to make pellets on its own. The pelleting of biochar mixed with livestock manure compost could have the following advantages: (1) use compost as a binder, (2) reduce the moisture content of compost for pelleting by simply mixing without drying, and (3) promote the application of biochar for carbon sequestration by simultaneous application with agricultural machinery for chemical fertilizers while preventing dust pollution and additional work for the farmer. Fertilizer pellets need to be produced in an economical manner. Therefore, we empirically examined the productivity of pelleting using a roller die pellet mill, which is characterized by high throughput and is commonly used in the mass production of multifertilizer and wood pellets. Although a feedstock with 25% biochar mixed with cattle manure compost produced fewer pellets than a feedstock consisting of only compost, the energy input per unit of production remained the same. The results suggest that the addition of biochar may not increase GHG emissions during the production of this new material. Durability and wettability showed similar or higher values in the mixed pellets, indicating that the new material can be used as a fertilizer in the same way as cattle manure pellets.

Low-temperature biochars are more effective in reducing ammonia emissions through various mechanisms during manure composting
Yunsik Shin; Kazunori Iwabuchi; Takanori Itoh
Journal of Material Cycles and Waste Management, 26, 1, 138, 148, Springer Science and Business Media LLC, 09 Oct. 2023, [Peer-reviewed], [International Magazine]
English, Scientific journal

Meat and bone meal biochar can effectively reduce chemical fertilizer requirements for crop production and impart competitive advantages to soil
Mahmudul Islam Piash; Koki Uemura; Takanori Itoh; Kazunori Iwabuchi
Journal of Environmental Management, 336, 117612, 117612, Elsevier BV, Jun. 2023, [Peer-reviewed], [International Magazine]
English, Scientific journal

Heat balance analysis for self-heating torrefaction of dairy manure using a mathematical model
Takanori Itoh; Teppei Ogawa; Kazunori Iwabuchi; Katsumori Taniguro
Waste Management, 162, 1, 7, Elsevier BV, May 2023, [Peer-reviewed], [Lead author], [International Magazine]
English, Scientific journal

Effects of Ash Composition and Combustion Temperature on Reduced Particulate Matter Emission by Biomass Carbonization
Davaajav Dalkhsuren; Kazunori Iwabuchi; Takanori Itoh; Takumi Narita; Mahmudul Islam Piash; Baatarbileg Nachin; Gerelbaatar Sukhbaatar
BioEnergy Research, 16, 3, 1629, 1638, Springer Science and Business Media LLC, 22 Oct. 2022, [Peer-reviewed], ［Internationally co-authored］, [International Magazine]
English, Scientific journal

Improvement of the fuel properties of dairy manure by increasing the biomass-to-water ratio in hydrothermal carbonization
Mohammed Aliyu; Kazunori Iwabuchi; Takanori Itoh
PLOS ONE, 17, 7, e0269935, e0269935, Public Library of Science (PLoS), 18 Jul. 2022, [Peer-reviewed], [International Magazine]
English, Scientific journal

Synthesizing biochar-based fertilizer with sustained phosphorus and potassium release: Co-pyrolysis of nutrient-rich chicken manure and Ca-bentonite
Mahmudul Islam Piash; Kazunori Iwabuchi; Takanori Itoh
Science of The Total Environment, 822, 153509, 153509, May 2022, [Peer-reviewed], [International Magazine]
English, Scientific journal

Upgrading the fuel properties of hydrochar by co-hydrothermal carbonisation of dairy manure and Japanese larch (Larix kaempferi): product characterisation, thermal behaviour, kinetics and thermodynamic properties
Mohammed Aliyu; Kazunori Iwabuchi; Takanori Itoh
Biomass Conversion and Biorefinery, 13, 13, 11917, 11932, Springer Science and Business Media LLC, 28 Oct. 2021, [Peer-reviewed], [International Magazine]
English, Scientific journal, Abstract

This study investigated co-hydrothermal carbonisation (co-HTC) of dairy manure (DM) and wood shavings from Larix kaempferi, commonly known as the Japanese larch (JL) to enhance the fuel properties of the resulting hydrochar. The JL was mixed with the DM at 25, 50 and 75 wt.% ratios. Co-HTC was conducted at 260 °C for 20 min. The resulting hydrochars were characterised based on the physicochemical properties and the thermal behaviour. Results showed that the hydrochar solid biofuel properties improved as the ratio of JL was increased. The produced hydrochars were in the region of lignite and closed to the region of the coal with increased fixed carbon, carbon contents and lowered H/C and O/C ratios. Hydrochar with ash content of 7.2 ± 0.5% was obtained at 75 wt.% JL. In addition, the HHV of hydrochar increased remarkably to 26.4 ± 0.02 MJ/kg as the mass ratio of the JL was increased. The surface morphology of the hydrochars were altered and became distinct while the specific surface area (SSA) and the total pore volume (TPV) of the hydrochars increased at increasing the mass ratio of the JL. The surface functional groups were also altered by the co-HTC process. A decline in the combustion performance was observed after the HTC process but improved at 75 wt.% JL after the co-HTC process. The kinetic analysis also revealed that the activation energy decreased after the HTC process but increased to a higher value at 50 wt.% JL after the co-HTC process. Therefore, hydrochar production by co-HTC of DM and JL has proved to be an effective and promising solid biofuel source.

Graphical abstract

Release of essential plant nutrients from manure- and wood-based biochars
Mahmudul Islam Piash; Kazunori Iwabuchi; Takanori Itoh; Koki Uemura
Geoderma, 397, 115100, 115100, Sep. 2021, [Peer-reviewed], [International Magazine]
English, Scientific journal

Effects of Different Feedstock Type and Carbonization Temperature of Biochar on Oat Growth and Nitrogen Uptake in Coapplication with Compost
Shoki Ochiai; Kazunori Iwabuchi; Takanori Itoh; Toshihiro Watanabe; Mitsuru Osaki; Katsumori Taniguro
Journal of Soil Science and Plant Nutrition, 21, 1, 276, 285, Mar. 2021, [Peer-reviewed], ［Internationally co-authored］, [International Magazine]
English, Scientific journal

Effects of pyrolysis temperature and feedstock type on particulate matter emission characteristics during biochar combustion
Takanori Itoh; Nana Fujiwara; Kazunori Iwabuchi; Takumi Narita; Dolgormaa Mendbayar; Mitsushi Kamide; Shinobu Niwa; Yutaka Matsumi
Fuel Processing Technology, 204, 106408, 106408, Elsevier BV, Jul. 2020, [Peer-reviewed], [Lead author], [International Magazine]
English, Scientific journal

Role of ambient pressure in self-heating torrefaction of dairy cattle manure
Takanori Itoh; Kazunori Iwabuchi; Naohiro Maemoku; Siyao Chen; Katsumori Taniguro
PLOS ONE, 15, 5, e0233027, e0233027, 29 May 2020, [Peer-reviewed], [Lead author], [International Magazine]
English, Scientific journal

The Hydrolysis Mechanism of Inulin and Its Hydrolysate in the Reaction Field by the Hot Compressed Water
Naoto SHIMIZU; Tetsuya USHIYAMA; Takanori ITOH
Environment Control in Biology, 57, 4, 87, 92, Japanese Society of Agricultural, Biological and Environmental Engineers and Scientists, 01 Oct. 2019, [Peer-reviewed]
English, Scientific journal

A new torrefaction system employing spontaneous self-heating of livestock manure under elevated pressure
Takanori Itoh; Kazunori Iwabuchi; Naohiro Maemoku; Izumi Sasaki; Katsumori Taniguro
Waste Management, 85, 66, 72, Feb. 2019, [Peer-reviewed], [Lead author], [International Magazine]
English, Scientific journal, 40187569;40178739

A new approach to stabilize waste biomass for valorization using an oxidative process at 90 °C
Takanori Itoh; Kazunori Iwabuchi; Kumpei Ota
PLOS ONE, 13, 4, e0196249, e0196249, 23 Apr. 2018, [Peer-reviewed], [Lead author]
English, Scientific journal, 40178739

Mass Spectrometry of Inulin Hydrolyzate Prepared Using Subcritical Water
Takanori ITOH; Naoto SHIMIZU
Japan Journal of Food Engineering, 15, 3, 165, 172, Japan Society for Food Engineering, 2014, [Peer-reviewed], [Lead author]
Japanese, Scientific journal

バイオ固形燃料製造のための半炭化
伊藤貴則; 岩渕和則, 農業食料工学会誌, 82, 436, 441, 2020, [Invited], [Lead author]
Japanese, Introduction scientific journal

水分が有機性廃棄物の自然発火現象に及ぼす影響
太田薫平; 岩渕和則; 伊藤貴則; 谷黒克守; 上出光志, 農業食料工学会北海道支部会報, 58, 25, 31, 2018
Japanese

農業・食料生産分野におけるバイオマス利用工学 : 循環型社会のための生物資源利用
農業食料工学会
コロナ社, Apr. 2023, 9784339066654, viii, 314p, Japanese, [Contributor]

バイオ炭の製造条件が炭素貯留能に及ぼす影響
田中直也; 松井優樹; 伊藤貴則; 岩渕和則; 紺野亜紀子
農業食料工学会第83回年次大会, 13 Sep. 2025, 一般社団法人農業食料工学会, Oral presentation
11 Sep. 2025 - 13 Sep. 2025, 三重, Japan, [Domestic Conference]

堆肥層気相率と質量含水率との強い関係性
岩渕和則; 伊藤貴則; 前田武己
農業食料工学会第83回年次大会, 13 Sep. 2025, 一般社団法人農業食料工学会, Japanese, Oral presentation
11 Sep. 2025 - 13 Sep. 2025, 三重, Japan, [Domestic Conference]

重金属添加とX戦光電子分光法による汚泥炭化物中重金属の形態観察
小島幹太; 穴井大智; 伊藤貴則; 岩渕和則; 武部史彦; 行方将泰
農業食料工学会第83回年次大会, 13 Sep. 2025, 一般社団法人農業食料工学会, Japanese, Oral presentation
11 Sep. 2025 - 13 Sep. 2025, 三重, Japan, [Domestic Conference]

不飽和脂肪酸が乳牛ふんの自己昇温型炭化プロセスに及ぼす影響
都留大樹; 小川哲平; 英翔太; 伊藤貴則; 岩渕和則; 谷黒克守
農業食料工学会第83回年次大会, 13 Sep. 2025, 一般社団法人農業食料工学会, Japanese, Oral presentation
11 Sep. 2024 - 13 Sep. 2025, Japan, [Domestic Conference]

堆肥層内の酸素拡散係数
岩渕和則; 伊藤貴則
2025年度農業施設学会大会, 06 Sep. 2025, 農業施設学会, Japanese, Oral presentation
04 Sep. 2025 - 06 Sep. 2025, 福島, Japan, [Domestic Conference]

ミネラル修飾がバイオ炭の炭素貯留能に及ぼす影響
田中直也; 松井優樹; 伊藤貴則; 岩渕和則
農業食料工学会第82回（2024年度）年次大会, 08 Sep. 2024, Japanese, Oral presentation
07 Sep. 2024 - 09 Sep. 2024

Effect of thermal treatment on clopyralid decomposition
Yota Kanno; Takanori Itoh; Kazunori Iwabuchi; Hideyuki Matsuura
EUBCE2024, 26 Jun. 2024, EUBCE, Japanese, Poster presentation
24 Jun. 2024 - 27 Jun. 2024, Marseille, France, 46076968, [International presentation]

Production and Physical Properties of Pellet Mixed with Cattle Manure Compost and Biochar
Kenichi Furuhashi; Kosuke Ueda; Taiyo Hatagami; Takanori Itoh; Takaya Miyazaki; Yutaka Kaizu; Kenji Imo
EUBCE2024, 25 Jun. 2024, EUBCE, English, Poster presentation
24 Jun. 2024 - 27 Jun. 2024, Marseille, France, [International presentation]

炭化下水汚泥に含まれる重金属の安定性
穴井大智; 伊藤貴則; 岩渕和則; 武部史彦; 行方将泰
2024年度農業施設学会大会, 15 Jun. 2024, 農業施設学会, Japanese, Oral presentation
14 Jun. 2024 - 16 Jun. 2024, 那覇, Japan, [Domestic Conference]

Stability of Composted and Carbonized Chicken Manure in Soil Used As Organic Fertilizer
Md Mahmudul Islam; Kazusa Abe; Takanori Itoh; Kazunori Iwabuchi
ASA, CSSA, SSSA International Annual Meeting, 01 Nov. 2023, English, Poster presentation
29 Oct. 2023 - 01 Nov. 2023, St. Louis, United States, [International presentation]

数理モデルを用いた自己昇温型炭化法における炭化炉サイズの決定
英翔太; 伊藤貴則; 岩渕和則; 谷黒克守
農業環境工学関連学会 2023年合同大会, 05 Sep. 2023, Japanese, Oral presentation
04 Sep. 2023 - 08 Sep. 2023, Japan, [Domestic Conference]

Effect of different feedstocks and pyrolysis temperatures of biochar on ammonia emissions during dairy manure composting
Yunsik Shin; Kazunori Iwabuchi; Takanori Itoh
The XX CIGR World Congress 2022, 07 Dec. 2022, English, Oral presentation
05 Dec. 2022 - 10 Dec. 2022, Kyoto, Japan, [International presentation]

Effects of operating variables on the heat balance of feedstock in self-heating torrefaction
Takanori Itoh; Teppei Ogawa; Kazunori Iwabuchi; Katsumori Taniguro
The XX CIGR World Congress 2022, 07 Dec. 2022, English, Oral presentation
05 Dec. 2022 - 10 Dec. 2022, Kyoto, Japan, [International presentation]

Reducing the emission of particulate matter during the combustion of various biomass
Davaajav Dalkhsurena; Kazunori Iwabuchi; Takanori Itoh; Takumi Narita; Mahmudul Islam Piash; Baatarbileg Nachin; Gerelbaatar Sukhbaatard
Hokkaido Branch Meeting of Japan Material Cycle and Waste Management (2022), 28 Nov. 2022, English, Oral presentation
28 Nov. 2022 - 28 Nov. 2022, Sapporo, Japan, [Domestic Conference]

自己昇温型炭化法における原料バイオマスの熱収支解析
小川哲平; 伊藤貴則; 岩渕和則; 谷黒克守
2022年度廃棄物資源循環学会北海道支部研究発表会, 18 Nov. 2022, Japanese, Oral presentation
18 Nov. 2022 - 18 Nov. 2022, 札幌, Japan, [Domestic Conference]

自己昇温型炭化法における酸化反応熱の推定
伊藤貴則; 小川哲平; 岩渕和則; 谷黒克守
2022年度農業施設学会大会, 20 Sep. 2022, Japanese, Oral presentation
20 Sep. 2022 - 21 Sep. 2022

土壌中の窒素がバイオ炭による炭素貯留効果に及ぼす影響
松井優樹; 岩渕和則; 伊藤貴則
第80回農業食料工学会年次大会, 14 Sep. 2022, Japanese, Oral presentation
12 Sep. 2022 - 14 Sep. 2022

Effective encapsulation of biochar-based fertilizer: Utilizing the grafting potential of chitosan for sustained nitrogen release
Mahmudul Islam Piash; Kazunori Iwabuchi; Takanori Itoh
The 22nd World Congress of Soil Science (WCSS2022), 03 Aug. 2022, English, Poster presentation
31 Jul. 2022 - 05 Aug. 2022

The fate of hydrochar’s fuel property by hydrothermal carbonization of the Japanese larch via increasing process temperature and biomass to water ratio
Mohammed Aliyu; Kazunori Iwabuchi; Takanori Itoh
12th International Conference on Future Environment and Energy (ICFEE 2022), Jan. 2022, English, Oral presentation
20 Jan. 2022 - 22 Jan. 2022

Verification of correlation between specific elements in ash and PM2.5 emission from biochar under low temperature combustion
舘野日向汰; Davaajav Dalkhsuren; 伊藤貴則; 岩渕和則
2021年度廃棄物資源循環学会北海道支部研究発表会, Nov. 2021, 廃棄物資源循環学会北海道支部, Japanese, Poster presentation
Nov. 2021 - Nov. 2021, 札幌, Japan, [Domestic Conference]

Potential of Dairy Manure Biochar as a Composting Amendment to Mitigate Ammonia Volatilization
Shin Yunsik; 岩渕 和則; 伊藤 貴則
2021年度廃棄物資源循環学会北海道支部研究発表会, Nov. 2021, 廃棄物資源循環学会北海道支部, Japanese, Poster presentation
Nov. 2021 - Nov. 2021, 札幌, [Domestic Conference]

Potential of Dairy Manure Biochar as a Composting Amendment to Mitigate Ammonia Volatilization
Shin Yunsik; 岩渕和則; 伊藤貴則
第79回農業食料工学会年次大会, 15 Sep. 2021, 農業食料工学会, Japanese, Oral presentation
13 Sep. 2021 - 15 Sep. 2021, 福岡（オンライン）, Japan, [Domestic Conference]

Optimizing the nutrient release from biochar: Co-pyrolysis of nutrient-rich feedstock and Ca-bentonite
Mahmudul Islam Piash; Kazunori Iwabuchi; Takanori Itoh
5th Asia Pacific Biochar Conference (APBC2021), 12 May 2021, English, Oral presentation
11 May 2021 - 12 May 2021

一般家庭内での熱電併給を目指した小型ガス化装置の開発
小川哲平; 岩渕和則; 伊藤貴則; 谷黒克守
第79回農業食料工学会年次大会, 15 Sep. 2019, 農業食料工学会, Japanese, Oral presentation
13 Sep. 2019 - 15 Sep. 2019, 福岡（オンライン）, Japan, [Domestic Conference]

堆肥とバイオ炭の混合施用が作物収量に及ぼす影響
阿部萌花; 植村高起; 岩渕和則; 伊藤貴則
第79回農業食料工学会年次大会, 15 Sep. 2019, 農業食料工学会, Japanese, Oral presentation
13 Sep. 2019 - 15 Sep. 2019, 福岡（オンライン）, Japan, [Domestic Conference]

自己発熱型半炭化法に及ぼす圧力の影響
前杢直宏; 伊藤貴則; 岩渕和則; 谷黒克守
2019農食施設CIGR VI国際大会, Sep. 2019, Japanese, Oral presentation
Sep. 2019 - Sep. 2019, 札幌, Japan, [Domestic Conference]

廃棄物由来バイオ炭は炭素貯留に効果があるのか
岩城光洋; 岩渕和則; 伊藤貴則
2019農食施設CIGR VI国際大会, Sep. 2019, Japanese, Oral presentation
Sep. 2019 - Sep. 2019, 札幌, Japan, [Domestic Conference]

バイオマス燃焼時の灰分によるPM2.5 発生の温度依存性
成田拓海; 岩渕和則; 藤原那奈; 伊藤貴則; Mendbayar Dolgormaa
2019農食施設CIGR VI国際大会, Sep. 2019, Japanese, Oral presentation
Sep. 2019 - Sep. 2019, 札幌, Japan, [Domestic Conference]

バイオ炭と堆肥の混合施用が作物生育に及ぼす影響
植村高起; 落合将暉; 岩渕和則; 伊藤貴則; 渡部敏裕; 谷黒克守
2019農食施設CIGR VI国際大会, Sep. 2019, Japanese, Oral presentation
Sep. 2019 - Sep. 2019, 札幌, Japan, [Domestic Conference]

水溶性肥料成分の吸着を目指した乳牛ふん由来バイオ炭の製造
佐々木いづみ; 伊藤貴則; 岩渕和則
2019農食施設CIGR VI国際大会, Sep. 2019, Japanese, Oral presentation
Sep. 2019 - Sep. 2019, 札幌, Japan, [Domestic Conference]

Effects of pressure on the torrefaction process using self-heating of dairy manure
Naohiro Maemoku; Takanori Itoh; Kazunori Iwabuchi; Izumi Sasaki; Katsumori Taniguro
2019 ASABE Annual International Meeting, 09 Jul. 2019, English, Poster presentation
07 Jul. 2019 - 10 Jul. 2019

高水分家畜排せつ物を対象とした乾燥および炭化プロセスの数値モデル
伊藤清音; Sitty Nur; Shafa Binti Bakri; 伊藤貴則; 岩渕和則; 谷黒克守
2018年度廃棄物資源循環学会北海道支部, 23 Oct. 2018, 廃棄物資源循環学会北海道支部, Japanese, Poster presentation
23 Oct. 2018 - 23 Oct. 2018, 札幌, [Domestic Conference]

水溶性肥料成分の吸着を目指した乳牛ふん由来バイオ炭の製造
佐々木いづみ; 伊藤貴則; 前杢直宏; 岩渕和則; 谷黒克守
2018年度廃棄物資源循環学会北海道支部, 23 Oct. 2018, 廃棄物資源循環学会北海道支部, Japanese, Poster presentation
23 Oct. 2018 - 23 Oct. 2018, 札幌, Japan, [Domestic Conference]

雰囲気圧力が乳牛ふんの自己発熱反応開始温度に及ぼす影響
前杢直宏; 伊藤貴則; 佐々木いづみ; 岩渕和則; 谷黒克守
2018年度廃棄物資源循環学会北海道支部, 23 Oct. 2018, 廃棄物資源循環学会北海道支部, Japanese, Poster presentation
23 Oct. 2018 - 23 Oct. 2018, 札幌, Japan, [Domestic Conference]

圃場へのバイオ炭施用が作物生育に及ぼす影響
植村高起; 岩渕和則; 落合将暉; 伊藤貴則; 渡部敏裕; 谷黒克守
2018年度廃棄物資源循環学会北海道支部, 23 Oct. 2018, 廃棄物資源循環学会北海道支部, Japanese, Poster presentation
23 Oct. 2018 - 23 Oct. 2018, 札幌, Japan, [Domestic Conference]

作物生育におけるバイオ炭と堆肥の混合施用効果
落合将暉; 岩渕和則; 伊藤貴則; 渡部敏裕; 谷黒克守
農業環境工学関連5学会2018年合同大会, 13 Sep. 2018, Japanese, Oral presentation
10 Sep. 2018 - 14 Sep. 2018, 松山, Japan, [Domestic Conference]

加圧雰囲気下における乳牛ふんの酸化的低温炭化
佐々木いづみ; 伊藤貴則; 前杢直宏; 岩渕和則; 谷黒克守
農業環境工学関連5学会2018年合同大会, 13 Sep. 2018, Japanese, Oral presentation
10 Sep. 2018 - 14 Sep. 2018, 松山, Japan, [Domestic Conference]

Investigation of the initiation temperature causing the self-heating of biomass in oxidative torrefaction
Takanori Itoh; Kazunori Iwabuchi; Naohiro Maemoku; Izumi Sasaki; Katsumori Taniguro
2018 ASABE Annual International Meeting, 31 Jul. 2018, English, Poster presentation
29 Jul. 2018 - 01 Aug. 2018

Microbial decomposition of deer carcasses using composting process
Kazunori Iwabuchi; Tomoaki Yuda; Takanori Itoh; Kumpei Ota; Juzo Matsuda; Shuji Shibata
XIX. World Congress of CIGR,, 24 Apr. 2018, English, Poster presentation
22 Apr. 2018 - 25 Apr. 2018

An approach to convert waste biomass into solid biofuels using low-temperature oxidation
Takanori Itoh; Kazunori Iwabuchi; Kumpei Ota
XIX. World Congress of CIGR, 24 Apr. 2018, English, Poster presentation
22 Apr. 2018 - 25 Apr. 2018

加圧雰囲気下における乳牛ふんの自己発熱反応開始温度
前杢直宏; 伊藤貴則; 佐々木いづみ; 岩渕和則; 谷黒克守
農業環境工学関連5学会2018年合同大会, 13 Sep. 2018, Japanese, Oral presentation
10 Sep. 2018 - 2018, 松山, Japan, [Domestic Conference]

低温炭化プロセスにおけるバイオマスの分解機構
伊藤貴則; 岩渕和則; 太田薫平; 谷黒克守
農業食料工学会76回年次大会, 09 Sep. 2017, 農業食料工学会, Japanese, Oral presentation
07 Sep. 2017 - 09 Sep. 2017, 東京, Japan, [Domestic Conference]

乳牛ふんの半炭化プロセスにおける乾燥モデルの検討
伊藤清音; Sitty Nur; Syafa Binti Bakri; 伊藤貴則; 岩渕和則; 谷黒克守
農業食料工学会第76回年次大会, 09 Sep. 2017, 農業食料工学会, Japanese, Oral presentation
07 Sep. 2017 - 09 Sep. 2017, 東京, [Domestic Conference]

バイオ炭の作物への施用効果
落合将暉; 柴田洋一; 岩渕和則; 伊藤貴則; 渡部敏裕; 大崎満
農業食料工学会第76回年次大会, 09 Sep. 2017, 農業食料工学会, Japanese, Oral presentation
07 Sep. 2017 - 09 Sep. 2017, 東京, Japan, [Domestic Conference]

バイオ炭の作物への施用効果
落合将暉; 柴田洋一; 岩渕和則; 伊藤貴則; 渡部敏裕; 大崎満
農業食料工学会北海道支部第68回年次大会, Aug. 2017, 農業食料工学会北海道支部, Japanese, Oral presentation
Aug. 2017 - Aug. 2017, 帯広, Japan, [Domestic Conference]

乳牛ふんの半炭化プロセスにおける乾燥モデルの検討
伊藤清音; Sitty Nur; Syafa Binti Bakri; 伊藤貴則; 岩渕和則; 谷黒克守
農業食料工学会北海道支部第68回年次大会, Aug. 2017, 農業食料工学会北海道支部, Japanese, Oral presentation
Aug. 2017 - Aug. 2017, 帯広, Japan, [Domestic Conference]

Effect of oxygen on the decomposition of dairy manure at low-temperature carbonization
Takanori Itoh; Kazunori Iwabuchi; Kumpei Ota; Katsumori Taniguro
2017 ASABE Annual International Meeting, 17 Jul. 2017, English, Poster presentation
17 Jul. 2017 - 19 Jul. 2017

Effects of fertilizer components of biochar on plant growth
Shoki Ochiai; Youichi Shibata; Kazunori Iwabuchi; Takanori Itoh; Toshihiro Watanabe; Mitsuru Osaki
International Conference on Sustainable Agriculture and Biotechnology (ICSAB) 2017, May 2017, English, Poster presentation

逆解析手法を用いた廃棄物系バイオマスの熱物性の推定
田中美礼; 岩渕和則; 谷黒克守; 伊藤貴則; 太田薫平
2016年度廃棄物資源循環学会北海道支部ポスター発表会, 25 Oct. 2016, 廃棄物資源循環学会北海道支部, Japanese, Poster presentation
25 Oct. 2016 - 25 Oct. 2016, 札幌, Japan, [Domestic Conference]

木質チップの自然発火現象初期過程における昇温要因の解明
太田薫平; 岩渕和則; 伊藤貴則; 谷黒克守
第27回廃棄物資源循環学会研究発表会, 29 Sep. 2016, 廃棄物資源循環学会, Japanese, Oral presentation
27 Sep. 2016 - 29 Sep. 2016, 和歌山, Japan, [Domestic Conference]

低温炭化法により作製されたバイオ炭の炭化進行度およびエネルギ収率の評価
伊藤貴則; 岩渕和則; 太田薫平; 谷黒克守
第27回廃棄物資源循環学会研究発表会, 28 Sep. 2016, 廃棄物資源循環学会, Japanese, Oral presentation
27 Sep. 2016 - 29 Sep. 2016, 和歌山, Japan, [Domestic Conference]

木質チップの自然発火現象初期過程における昇温要因の解明
太田薫平; 岩渕和則; 伊藤貴則; 谷黒克守
農業食料工学会北海道支部第67回年次大会, Sep. 2016, 農業食料工学会北海道支部, Japanese, Oral presentation
札幌, Japan, [Domestic Conference]

Determination of Biochar Properties from Dairy Manure Torrefaction
Dolgormma Mendbayar; Kazunori Iwabuchi; Takanori Itoh
International Conference on Agricultural Biodiversity and Sustainability (CABS) 2016, 24 Aug. 2016, English, Poster presentation
22 Aug. 2016 - 24 Aug. 2016

Investigation of Low-Temperature Carbonization for Organic Wastes
Takanori Itoh; Kazunori Iwabuchi; Yuki Takata; Katsumori Taniguro
The 8th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB), 23 May 2016, English, Oral presentation
23 May 2016 - 26 May 2016

亜臨界水を用いたイヌリン加水分解物の質量分析
伊藤貴則; 清水直人
日本食品工学会第15回（2014年度）年次大会, Aug. 2014, 日本食品工学会, Japanese, Oral presentation
つくば, Japan, [Domestic Conference]

亜臨界流体を用いた多糖類分解特性：水熱反応場を用いたイヌリン分解生成物の特性評価
伊藤貴則; 岩渕和則; 清水直人
第73回農業食料工学会年次大会, 18 May 2014, 農業食料工学会, Japanese, Oral presentation
16 May 2014 - 19 May 2014, 沖縄, Japan, [Domestic Conference]

生物生産工学特論, 2024年, 修士課程, 農学院

生物環境工学実験Ⅱ, 2024年, 学士課程, 農学部

生物環境工学実験Ⅳ, 2024年, 学士課程, 農学部

機械設計製図, 2024年, 学士課程, 農学部

生物環境工学実習, 2024年, 学士課程, 農学部

生物環境工学基礎実験, 2024年, 学士課程, 農学部

Jul. 2024 - Present
Japan Biochar Association

Sep. 2022 - Present
農業施設学会

Jan. 2017 - Present
American Society of Agricultural and Biological Engineers (ASABE)

Apr. 2016 - Present
Japan Society of Material Cycles and Waste Management

May 2014 - Present
The Japanese Society of Agricultural Machinery and Food Engineers

炭素貯留と化学肥料代替の両効果を備えたALLバイオ炭成型肥料の開発
環境研究総合推進費
Apr. 2025 - Mar. 2028
伊藤貴則; 古橋賢一
独立行政法人環境再生保全機構, 革新型研究開発（若手枠A）, 北海道大学, Principal investigator, Competitive research funding, JPMEERF20253RA4

家畜排せつ物中の残存抗生物質の分解：自己昇温型炭化法による熱分解条件の最適化
科学研究費助成事業
Apr. 2024 - Mar. 2027
伊藤 貴則
日本学術振興会, 若手研究, 北海道大学, Principal investigator, Competitive research funding, 24K17992

バイオ炭からの養分供給は生物学的窒素固定を促進させるのか？
科学研究費助成事業
Aug. 2023 - Mar. 2025
伊藤 貴則
日本学術振興会, 研究活動スタート支援, 北海道大学, Principal investigator, Competitive research funding, 23K19315

家畜排せつ物に残存する除草剤成分の熱分解技術の開発
令和5年度研究助成（個人研究の部）
Jul. 2023 - Mar. 2024
伊藤貴則
公益財団法人 栗林育英学術財団, 北海道大学, Principal investigator, Competitive research funding

Development of innovative biochar production technology without an external heat source: Biochar production using self-heating of biomass
Grants-in-Aid for Scientific Research Grant-in-Aid for JSPS Fellows
Apr. 2017 - Mar. 2019
伊藤 貴則
本研究は高水分で取り扱い難い廃棄物系バイオマスを，持続的かつ省エネルギーな方法でバイオ炭へと変換し，廃棄物系バイオマスの資源化，エネルギー化に資することを目指し行われた。ここでは乳牛ふんをモデル材料として（１）100℃以下でのバイオ炭製造，さらには（２）300℃以上に至る自己発熱反応を利用したバイオ炭製造技術の提案についてそれぞれ検討した。


（１）100℃以下でのバイオ炭製造
90℃での低温酸化プロセスを用いて乳牛ふんの酸化分解を進め，得られた試料の元素分析（CHNO）および高位発熱量（HHV）測定を行った。炭素含有率およびHHVは当初想定していたような大幅な増加は認められなかったものの，回収固形物の元素組成は泥炭に似た組成を有しており，従来の半炭化（200-300℃）や炭化（400℃以上）よりも極めて低い温度域で，バイオマスの改質化を達成できることを示した。
（２）自己発熱反応を利用したバイオ炭製造技術の提案
上述の100℃以下での酸化反応を進めるためには，炭化プロセスには不要と考えられてきた水分が重要な役割を担っていることを前年度までに明らかにした。この知見はバイオマスと酸素分子が反応できる状態，すなわち適度な水分状態に保たれたバイオマスに空気（酸素）を供給することで，バイオマスの自然発火に至るような酸化反応を常温付近から引き起こすことが可能という新たな仮説に繋がった。この仮説について検証を進めたところ，湿潤状態の乳牛ふんを加圧環境におき，空気を連続供給することで300℃以上に至る自己発熱反応が90℃付近から誘発されることを明らかにした。このメカニズムを利用して作成された乳牛ふん由来のバイオ炭は褐炭と同等の元素組成を有していた。
Japan Society for the Promotion of Science, Grant-in-Aid for JSPS Fellows, Hokkaido University, 17J00272

廃棄物系バイオマスのための新規炭化技術の開発：超低温炭化法によるバイオ炭製造
平成29年度助成事業
Apr. 2017 - Mar. 2018
伊藤貴則
一般社団法人ヤンマー資源循環支援機構, 北海道大学, Principal investigator, Competitive research funding

バイオマス材料の炭化方法、バイオマス材料からバイオ炭の製造方法
Patent right, 谷黒克守; 岩渕和則; 伊藤貴則, 国立大学法人北海道大学, 株式会社谷黒組
特願2025-037696, 10 Mar. 2025
Domestic

鶏糞由来のバイオ炭及びその製造方法
Patent right, エムディー・マフムドゥル・イスラム; 伊藤貴則; 安部和紗; 岩渕和則, 谷黒克守
特願2024-216454, 11 Dec. 2024

熱処理による除草剤クロピラリドの無害化
Patent right, 岩渕和則; 伊藤貴則; 菅野葉太, 国立大学法人北海道大学
特願2024-099295, 20 Jun. 2024

バイオマス材料の加圧環境下での処理方法
Patent right, 谷黒克守; 岩渕和則; 伊藤貴則
特願2018-45032, 13 Mar. 2018
特許7043130

バイオマス材料の炭化処理方法及び炭化物の製造方法
Patent right, 谷黒克守; 岩渕和則; 伊藤貴則; 太田薫平
特願2018-512349, 31 Jan. 2017
特許6374632

持続可能な循環型社会形成に向けた生物資源（バイオマス）の役割
23 Oct. 2025
Lecturer
北海道登別明日中等教育学校 模擬講義
Junior high school students