Achievements

* is peer reviewed

1	Masatoshi Himeno, Shinjiro Sato, 2021. "有機肥料を原料としたバイオ炭からの栄養塩の溶出評価 (Evaluation of Nutrient Leaching from Biochar Derived from Organic Fertilizer)". 木質炭化学会誌 (Journal of the Wood Carbonization Research Society), Vol.17 No.2:45-54. DOI: 10.32143/wcr.17.2_45
2	Joo Yun Qi and Shinjiro Sato, 2021. "Magnesium-modified biochars for nitrate adsorption and removal in continuous flow system." Bulletin of Plankton Eco-Engineering Research, Vol. 1: 32-46. PDF
3*	Milkiyas Ahmed, Abebe Nigussie, Solomon Addisu, Berhanu Belay, and Shinjiro Sato, 2021. "Valorization of animal bone into phosphorus biofertilizer: Effects of animal species, thermal processing method, and production temperature on phosphorus availability." Soil Science and Plant Nutrition, Vol. 67, No. 4:471-481. DOI: 10.1080/00380768.2021.1945403
4*	Milkiyas Ahmed, Abebe Nigussie, Solomon Addisu, Berhanu Belay, Johannes Lehmann, and Shinjiro Sato, 2021. "Valorization of animal bone waste for agricultural use through biomass co-pyrolysis and bio-augmentation". Biomass Conversion and Biorefinery. DOI: 10.1007/s13399-021-02100-w
5*	Masatoshi Kishi, Kenji Tanaka, Shinichi Akizuki, Tatsuki Toda, 2021. "Development of a gas-permeable bag photobioreactor for energy-efficient oxygen removal from algal culture". Algal Research, Vol.60:102543. DOI: 10.1016/j.algal.2021.102543
6*	Akinori Fujita , Masatoshi Kishi, Mutsumi Sekine, Tatsuki Toda, 2022. "Anaerobic Digestion Effluent Purification using Activated Sludge Process, Slow Sand Filtration, and Activated Carbon Filtration." Journal of the Japan Society of Material Cycles and Waste Management, Vol.33:1-10. DOI: 10.3985/jjsmcwm.33.1
7	Wubayehu M. Minayehu, Hailemariam Z. Achene, Nigus Gabbiye Habtu, Solomon Addis Legesse, Shinichi Akizuki, Masatoshi Kishi, Shinjiro Sato, 2022. "Anaerobic digestion of water hyacinth juice in upflow column bioreactor for production of biogas and nutrient recovery". 18th World Lake Conference: Governance, Resilience and Sustainability of Lakes for a Better Society, -:372-383. DOI: 10.52501/cc.087
8*	Fekremariam Asargew Mihretie, Atsushi Tsunekawa, Nigussie Haregeweyn, Enyew Adgo, Mitsuru Tsubo, Tsugiyuki Masunaga, Derege Tsegaye Meshesha, Kindiye Ebabu, Zerihun Nigussie, Shinjiro Sato, Mulatu Liyew Berihun, Yuta Hashimoto, Ayaka Kawbota, Muluken Bayable, 2022. "Exploring teff yield variability related with farm management and soil property in contrasting agro-ecologies in Ethiopia". Agricultural Systems, Vol.196:103338. DOI: 10.1016/j.agsy.2021.103338
9*	Masaaki Fujiwara, Mitsuhiko Koyama, Shinichi Akizuki, Syuhei Ban, Tatsuki Toda, 2022. Influence of lignocellulosic components on the anaerobic digestibility of aquatic weeds: Comparison with terrestrial crops. Industrial Crops and Products, Vol.178:114576. DOI: 10.1016/j.indcrop.2022.114576
10	Tassapak Wutisirirattanachai, Solomon Addisu Legesse, Shinjiro Sato, 2022. "Hydrothermal carbonization of compressed water hyacinth: Effects of operation parameters on energy conversion and characterization of products". プランクトン工学研究, Vol.2:44-55. PDF
11*	Maria Cecilia D. Salangsang, Mutsumi Sekine, Shinichi Akizuki, Hiroyuki D. Sakai, Norio Kurosawa, Tatsuki Toda, 2022. "Effect of carbon to nitrogen ratio of food waste and short resting period on microbial accumulation during anaerobic digestion". Biomass and Bioenergy, Vol.162:106481. DOI: 10.1016/j.biombioe.2022.106481
12*	Fekremariam Asargew Mihretie, Kindie Tesfaye, Gerrit Hoogenboom, Atsushi Tsunekawa, Adamu Molla, Kindiye Ebabu, Shinjiro Sato, Yuji Masutomi, 2022. "Identifying low risk and profitable crop management practices for irrigated Teff production in northwestern Ethiopia". European Journal of Agronomy, Vol.139:126572. DOI: 10.1016/j.eja.2022.12657
13*	Mutsumi Sekine, Naoki Mizuno, Masaaki Fujiwara, Toshimitsu Kodera, Tatsuki Toda, 2022. "Improving methane production from food waste by intermittent agitation: Effect of different agitation frequencies on solubilization, acidogenesis, and methanogenesis". Biomass and Bioenergy, Vol.164:106551. DOI: 10.1016/j.biombioe.2022.106551
14	Ji Cai, Chunmeng Jiao, Solomon Addisu Legesse, Kanako Ishikawa, Ayalew Wondie, Shinjiro Sato, 2022. "Water hyacinth infestation in Lake Tana, Ethiopia – a review of population dynamics". Journal of Limnology, Vol.24:51-60. DOI: 10.1007/s10201-022-00706-1
15*	Shinichi Akizuki, Honami Suzuki, Masaaki Fujiwara, Tatsuki Toda, 2023. "Impacts of steam explosion pretreatment on semi-continuous anaerobic digestion of lignin-rich submerged macrophyte". Journal of Cleaner Production, Vol.385:135377. DOI: 10.1016/j.jclepro.2022.135377
16*	Masatoshi Kishi, Kenji Tanaka, Mako Kishi, Shinichi Akizuki, Tatsuki Toda, 2023. "Energy-efficient algal culture through aeration-less oxygen removal in a gas-permeable bag photobioreactor". Algal Research, Vol.69:102959. DOI: 10.1016/j.algal.2022.102959
17*	Mutsumi Sekine, Akari Yoshida, Masatoshi Kishi, Ken Furuya, Tatsuki Toda, 2023. "Free ammonia tolerance of cyanobacteria depends on intracellular pH". Biocatalysis and Agricultural Biotechnology, Vol.47:102562. DOI: 10.1016/j.bcab.2022.10256
18*	Getachew Bayable, Ji Cai, Mulatie Mekonnen, Solomon Addisu Legesse, Kanako Ishikawa, Hiroki Imamura, Victor S. Kuwahara, 2023. "Detection of water hyacinth (Eichhornia crassipes) in Lake Tana, Ethiopia, using machine learning algorithms". Water, vol. 15, 880. DOI: 10.3390/w15050880
19	安井一人, 松村勇育, 浅見正人, Ji Cai, Yoichiro Sakai, Kanako Ishikawa, 2022. "ドローンと人工衛星画像を用いた伊庭内湖における水草繁茂面積の簡易推定 (Simplified Estimation of Aquatic Vegetation in Ibanaiko Lagoon adjacent to Lake Biwa using drones and satellite observation)". 陸水学雑誌 (Japanese Journal of Limnology), Vol.84:65-74.
20	Kanako Ishikawa, Ji Cai, 2023. "ナイルの源流エチオピア・タナ湖で過剰繫茂したホテイアオイの管理手法を考える (Considering management methods for the overgrowth of water hyacinths in Lake Tana, Ethiopia, the source of the Nile)". びわ湖みらい (LBERI News), Vol.37:2-2. URL
21*	Daiki Ogasawara Maruyama, Shinichi Akizuki, Mutsumi Sekine, Akinori Fujita, Nigus Gabbiye Habtu, Shinjiro Sato, Tatsuki Toda, 2023. "Enhancement of water hyacinth juice treatment in an anaerobic sequential batch reactor with coffee husk-derived biochar". BioEnergy Research, Vol. 16, 2168-2177. DOI: 10.1007/s12155-023-10593-8
22*	Adino Andaregie, Hirohisa Shimura, Mitsuko Chikasada, Satoshi Sasaki, Shinjiro Sato, Solomon Addisu, Tessema Astatkie, Isao Takagi, 2024. "Intention of consumers dwelling in urban areas of Ethiopia to consume Spirulina-fortified bread". Cogent Business & Management, Vol. 11, 2366434. DOI: 10.3390/soilsystems8030072
23*	Mekuanint Lewoyehu, Yudai Kohira, Desalew Fentie, Solomon Addisu, Shinjiro Sato, 2024. "Water Hyacinth Biochar: A Sustainable Approach for Enhancing Soil Resistance to Acidification Stress and Nutrient Dynamics in an Acidic Nitisol of the Northwest Highlands of Ethiopia". Sustainability, Vol. 16, 5537. DOI: 10.3390/su16135537
24*	Adino Andaregie, Hirohisa Shimura, Mitsuko Chikasada, Satoshi Sasaki, Meselu Alamnie Mulugeta, Aemro Worku, Atalel Wubalem, Shinjiro Sato, Solomon Addisu, Isao Takagi, 2024. "Assessing eating habits and preferences for bakery products among urban dwellers in Ethiopia". Cogent Business & Management, Vol. 11, 2375621. DOI: 10.1080/23311975.2024.2375621
25*	Getachew Bayable, Ji Cai, Mulatie Mekonnen, Solomon Addisu Legesse, Kanako Ishikawa, Shinjiro Sato, Victor Shinichi Kuwahara. "Spatiotemporal variability of lake surface water temperature and water quality parameters and its interrelationship with water hyacinth biomass in Lake Tana, Ethiopia". Environmental Science and Pollution Research, Vol. 31, 45929-45953. DOI: 10.1007/s11356-024-34212-x
26*	Ashenafei Gezahegn, Yihenew G. Selassie, Getachew Agegnehu, Solomon Addisu, Fekremariam Asargew Mihretie, Yudai Kohira, Mekuanint Lewoyehu, Shinjiro Sato, 2024. "The impact of water hyacinth biochar on maize growth and soil properties: The influence of pyrolysis temperature". Journal of Sustainable Agriculture and Environment, Vol. 3, e12117. DOI: 10.1002/sae2.12117
27*	Ewunetu Tazebew, Solomon Addisu, Eshetu Bekele, Asmamaw Alemu, Berhanu Belay, Shinjiro Sato, 2024. "Sustainable soil health and agricultural productivity with biochar-based indigenous organic fertilizers in acidic soils: insights from Northwestern Highlands of Ethiopia". Discover Sustainability, Vol. 5, 205. DOI: 10.1007/s43621-024-00380-6
28*	Marcelo Takeda Ono, Desalew Fentie Meselu, Yudai Kohira, Solomon Addisu Legesse, Berhanu Belay Abune, Shinjiro Sato, 2024. "Effects of Different Rates of Biochar for Soil Nitrogen and Water Dynamics and Teff Production in Highland of Ethiopia". International Journal of Plant & Soil Science, Vol. 36, 955-969. DOI: 10.9734/ijpss/2024/v36i84927
29*	Ashenafei Gezahegn, Yihenew G. Selassie, Getachew Agegnehu, Solomon Addisu, Fekremariam Asargew Mihretie, Yudai Kohira, Mekuanint Lewoyehu, Shinjiro Sato, 2024. "Sustainable weed management and soil enrichment with water hyacinth composting and mineral fertilizer integration". Environmental Challenges, Vol. 16, 101007. DOI: 10.1016/j.envc.2024.101007
30*	Yudai Kohira, Desalew Fentie, Mekuanint Lewoyehu, Tassapak Wutisirirattanachai, Ashenafei Gezahegn, Solomon Addisu, Shinjiro Sato, 2024. "Mitigation of ammonia volatilization from organic and inorganic nitrogen sources applied to soil using water hyacinth biochars". Chemosphere, Vol. 363, 142872. DOI: 10.1016/j.chemosphere.2024.142872
31*	Marcelo Takeda Ono, Milkiyas Ahmed Yasin, Desalew Fentie Meselu, Yudai Kohira, Solomon Addisu Legesse, Berhanu Belay Abune, Shinjiro Sato, 2024. "Impacts of Acacia Biochar and Irrigation Scheme on Teff Production for Dry Season in Highland of Ethiopia". Asian Journal of Soil Science and Plant Nutrition, Vol. 10, 569-583. DOI: 10.9734/ajsspn/2024/v10i4429
32*	Amare Mezgebu, Xin Liu, Minwyelet Mingist, Syuhei Ban, 2024. "Dietary lipid constraints of Arthrospira platensis for survival and growth of Daphnia magna". Inland Waters, Vol. 15(6), 1-32. DOI: 10.1080/20442041.2024.2418679
33*	Yuka Takeshita, Shinjiro Sato, 2024. "Transforming water hyacinth biomass to phosphate absorbent biochar with Mg/Al layered double hydroxides". Poly Journal of Engineering and Technology, Vol. 3, 1-17. DOI: 10.20372/pjet.v3i1.1807
34*	Mfor E. Agborambang, Masaaki Fujiwara, Mutsumi Sekine, Pranshu Bhatia, Tatsuki Toda, 2024. "CFD simulation of the mixing process and performance evaluation of a two-way flow Chinese dome digester". Biosystems Engineering, Vol. 240, pp. 77-89. DOI: 10.1016/j.biosystemseng.2024.02.015
35*	Diego A. Herraera Ollachica, Bismark K. Asiedu Asante and Hiroki Imamura, 2024. "Autonomous UAV Implementation for Facial Recognition and Tracking in GPS-denied environments". IEEE Access, Vol. 12, pp.119464-119472. DOI: 10.1109/ACCESS.2024.3447899
36*	Diego A. Herrera Ollachica, Bismark K. Asiedu Asante and Hiroki Imamura, 2025. "Advancing Water Hyacinth Recognition: Integration of Deep Learning and Multispectral Imaging for Precise Identification". Remote Sensing MDPI, Vol. 17, 689. DOI: 10.3390/rs17040689
37*	Ashenafei Gezahegn, Yihenew G. Selassie, Getachew Agegnehu, Solomon Addisu, Fekremariam Asargew Mihretie, Yudai Kohira, Shinjiro Sato, 2025. "Pyrolysis temperature changes the physicochemical characteristics of water hyacinth-based biochar as a potential soil amendment". Biomass Conversion and Biorefinery, Vol. 15, 3737-3752. DOI: 10.1007/s13399-024-05338-2
38*	Yudai Kohira, Desalew Fentie, Mekuanint Lewoyehu, Tassapak Wutisirirattanachai, Ashenafei Gezahegn, Solomon Addisu, Shinjiro Sato, 2025. "Elucidation of ammonium and nitrate adsorption mechanisms by water hyacinth biochar: effects of pyrolysis temperature". Environmental Science and Pollution Research, Vol. 32, 762-782. DOI: 10.1007/s11356-024-35808-z
39*	Asefash Getachew, Nigus Gabbiye, Surafel Argahegn, Gemechu Kasseye, Eshetu Getahun, Hialemeriam Zewudu, Zenamarkos Bantie, Solomon Addisu, Pranshu Bhatia, Masaaki Fujiwara, Shin-ichi Akizuki, Shinjiro Sato, 2025. "Treatment of water hyacinth juice in an upflow anaerobic sludge blanket reactor with biofilm carriers". Biomass Conversion and Biorefinery. DOI: 10.1007/s13399-025-06659-6
40*	Matebie Muche, Yayeh Bitew, Yihenew G. Selassie, Ashenafei Gezahegn, Solomon Addisu, Shinjiro Sato, 2025. "Synergistic Effects of Water Hyacinth Compost and Blended Mineral Fertilizers on Key Soil Properties and Bread Wheat Yield". Journal of Sustainable Agriculture and Environment, Vol. 4, e70054. DOI: 10.1002/sae2.70054
41*	Pranshu Bhatia, Masaaki Fujiwara, Shin-ichi Akizuki, Daiki Maruyama, Nigus Gabbiye Habtu, Shinjiro Sato, Tatsuki Toda, 2025. "High-rate anaerobic digestion of water hyacinth juice in an upflow anaerobic sludge blanket reactor with observations on granule formation". Journal of Water Process Engineering, Vol. 72, 107339. DOI: 10.1016/j.jwpe.2025.107339
42*	Desalew Fentie, Fekremariam Asargew Mihretie, Yudai Kohira, Solomon Addisu Legesse, Mekuanint Lewoyehu, Tassapak Wutisirirattanachai, Shinjiro Sato, 2025. "Optimizing Cropping Systems Using Biochar for Wheat Production Across Contrasting Seasons in Ethiopian Highland Agroecology". Agronomy, Vol. 15, p. 1227. DOI: 10.3390/agronomy15051227
43*	Yudai Kohira, Desalew Fentie, Mekuanint Lewoyehu, Tassapak Wutisirirattanachai, Ashenafei Gezahegn, Milkiyas Ahmed, Shinichi Akizuki, Solomon Addisu, Shinjiro Sato, 2025. "The Sustainable Management of Nitrogen Fertilizers for Environmental Impact Mitigation by Biochar Applications to Soils: A Review from the Past Decade". Environments, Vol. 12, p. 182. DOI: 10.3390/environments12060182
44*	Ashenafei Gezahegn, Yihenew G. Selassie, Getachew Agegnehu, Solomon Addisu, Fekremariam Asargew Mihretie, Yudai Kohira, Mekuanint Lewoyehu, Shinjiro Sato, 2025. "Synergistic effects of aquatic weed biochar and inorganic fertilizer on soil properties, maize yield, and nitrogen use efficiency on Nitisols of Northwestern Ethiopian Highlands". Journal of Agriculture and Food Research, Vol. 21, p. 101939. DOI: 10.1016/j.jafr.2025.101939
45*	Mekuanint Lewoyehu, Ashenafei Gezahegn, Yudai Kohira, Solomon Addisu, Shinjiro Sato, 2025. "Alleviating Soil Acidity and Nutrient Leaching Through Water Hyacinth Biochar Integrated with Organic and Artificial Fertilizers: A Viable Strategy for Enhancing Plant Growth and Combating Environmental Pollution". Journal of Soil Science and Plant Nutrition, Vol. 25, pp. 7294-7316. DOI: 10.1007/s42729-025-02596-5
46*	Gemechu Kassaye, Nigus Gabbiye, Eshetu Getahun, Shin-ichi Akizuki, Zenamarkos Bantie, Pranshu Bhatia, Masaaki Fujiwara, Solomon Addisu, Shinjiro Sato, 2025. "Enhancing biogas production from water hyacinth juice through biochar addition in an upflow anaerobic sludge blanket reactor". Journal of Chemical Technology and Biotechnology, Vol. 100, 2289-2298. DOI: 10.1002/jctb.70039
47*	Daiki Ogasawara Maruyama, Shin-ichi Akizuki, Masaaki Fujiwara, Nigus Gabbiye Habtu, Shinjiro Sato, Tatsuki Toda, Kiyohiko Nakasaki, 2025. "The Functional Role of Coffee Husk–Derived Biochar Revealed by Repeated Use in Anaerobic Digestion of Water Hyacinth Juice". BioEnergy Research, Vol. 18, 89. DOI: 10.1007/s12155-025-10883-3
48*	Surafel Argahegn Agdew, Nigus Gabbiye, Gemechu Kassaye, Asefash Getachew, Shin-ichi Akizuki, Solomon Addisu, Pranshu Bhatia, Masaaki Fujiwara, Shinjiro Sato, Eshetu Getahun, 2025. "Upgrading of biogas via combined removal of impurities using tailor-made adsorbent materials in a fixed bed adsorption column". International Journal of Energy Research, Vol. 2025, 5511453. DOI: 10.1155/er/5511453
49	Mfor E. Agborambang, Gemechu Kassaye, Eshetu Getahun, Pranshu Bhatia, Masaaki Fujiwara, Daiki Maruyama, Kanako Kimura, Shin-ichi Akizuki, Nigus Gabbiye Habtu, Shinjiro Sato, Tatsuki Toda, 2025. "Effects of short hydraulic retention time on UASB reactor performance inoculated with pre-aggregated anaerobic digestion granular sludge". Bulletin of Plankton Eco-engineering Research, Vol. 5, 25-36. PDF
50	Mfor E. Agborambang, Gen Satoyoshi, Masaaki Fujiwara, Pranshu Bhatia, Tatsuki Toda, Kouji Yoshida, Ryosuke Okimune, 2025. "Imapact of impeller rotational seed on sludge velocity distribution in a double helical ribbon reactor: A CFD-based study". Bulletin of Plankton Eco-engineering Research, Vol. 5, 37-45. PDF
51*	Solomon Girmay Berhe, Ali Seid, Berhanu Abraha Tsegay, Shinjiro Sato, Getahun Yemata Lule, 2025. "Effect of Charcoal on the Quality of Vermicompost Produced With Water Hyacinth and Cow Manure". The Scientific World Journal, Vol. 2025, 1086347. DOI: 10.1155/tswj/1086347
52*	Mekuanint Lewoyehu, Yudai Kohira, Solomon Addisu, Ashenafei Gezahegn, Tassapak Wutisirirattanachai, Desalew Fentie, Shinjiro Sato, 2026. "Phosphorus fraction transformation and soil acidity mitigation through integration of water hyacinth biochar with organic and synthetic phosphorus sources in acidic soil". Frontiers in Environmental Science, Vol. 13. DOI: 10.3389/fenvs.2025.1742046
53*	Tassapak Wutisirirattanachai, Yudai Kohira, Mekuanint Lewoyehu, Desalew Fentie, Pranshu Bhatia, Masaaki Fujiwara, Solomon Addisu, Shinjiro Sato, 2026. "Overcoming the HHV–Energy Recovery Tradeoff in Hydrothermal Carbonization of Water Hyacinth via Co-Biomass Selection and Citric Acid Catalysis". Energies, Vol. 19, 2541. DOI: 10.3390/en19112541
54*	Yudai Kohira, Desalew Fentie, Mekuanint Lewoyehu, Tassapak Wutisirirattanachai, Ashenafei Gezahegn, Solomon Addisu, Norio Kurosawa, Shinjiro Sato, 2026. "Contrasting mechanisms of biochar–nitrogen interactions under inorganic and organic fertilizers: Integrated evidence from incubation, volatilization, leaching, and apparent nitrogen partitioning". Science of The Total Environment, Vol. 1043, 181941. DOI: 10.1016/j.scitotenv.2026.181941

1	Shinichi Akizuki, Shinjiro Sato, Solomon Addisu Legesse, GermánCuevas-Rodríguez, 2021. "Treatment of piggery wastewater with an integrated microalgae-nitrifiers process: current status and prospects." Integrated and Hybrid Process Technology for Water and Wastewater Treatment, W. Ang and A. Mohammad, editers, Elsevier B.V., Amsterdam, 595-616. DOI: 10.1016/B978-0-12-823031-2.00021-5
2	Pranshu Bhatia, Shinichi Akizuki, Masatoshi Kishi, Nigus Gabbiye Habtu, Solomon Addisu Legasse, 2022. "Biomethane from microalgae". 3rd Generation Biofuels, E. Jacob-Lopes, L. Q. Zepka, I. A. Severo, M. M. Maroneze, editers, Elsevier B.V., Amsterdam, 463-503. DOI: 10.1016/B978-0-323-90971-6.00034-6
3	佐藤伸二郎, 2024. "水草バイオマス由来バイオ炭の燃料利用および土壌改良材効果". 炭やきの会40周年記念誌, 18-21. (Shinjiro Sato, 2024. "Use of Aquatic Plant Biomass-Derived Biochar as Fuel and as a Soil Amendment." Japan Charcoal Promotion Society 40th Anniversary Commemorative Publication, 18-21.)
4	Shinichi Akizuki, Pranshu Bhatia, Nigus Gabbiye Habtu, Tatsuki Toda, Shinjiro Sato, 2025. "Treatment of water hyacinth juice in an up-flow anaerobic digester: Process stability and quality of digestate's macronutrients". Sustainable Development Research in Manufacturing, Process Engineering, Green Infrastructure, and Water Resources: Advancement of Science and Technology, pp. 317-331.
5	Shinichi Akizuki, Pranshu Bhatia, Nigus Gabbiye Habtu, Tatsuki Toda, Shinjiro Sato, 2025. "Treatment of water hyacinth juice in an up-flow anaerobic digester: Process stability and quality of digestate's macronutrients". Sustainable Development Research in Manufacturing, Process Engineering, Green Infrastructure, and Water Resources: Advancement of Science and Technology, pp. 317-331.
6	佐藤伸二郎, 2025. "エチオピアの水草バイオマスを循環させてエネルギーと生物生産へ転換", 地球を救うグリーンテクノロジー, 147-161. (Shinjiro Sato, 2025. "Circulating Ethiopian aquatic plant biomass and converting it into energy and biological products." Green Technology, 147-161.)
7	Shinjiro Sato, Tassapak Wutisirirattanachai, Yudai Kohira, Mekuanint Lewoyehu, 2026. "Charcoal or Biochar from Aquatic Biomass (Water Hyacinth) for Energy, Soil Amendment, and Crop Production Applications". Advances in Soil Science.

1	Shinjiro Sato (SU). "EARTH Project in Lake Tana, Ethiopia" Transforming water hyacinth to energy and agricultural crops -from PLANE3T to EARTH projects-. One Year to Go Pre-Conference Virtual Event Program, 18th World Lake Conference. Web conference (Mexico), November 9, 2020.
2	Shinjiro Sato (SU). SATREPS-EARTH Project: Transforming Water Hyacinth to Energy and Agricultural Crops in Ethiopia. 18th World Lake Conference Thematic Keynote Speech (Topic of Environment and Health). University of Guanajuato, Guanajuato, Mexico (Online). November 11, 2021.
3	Shinjiro Sato (SU). Biochar derived from water hyacinth for energy and soil amendment applications in Ethiopia. Plenary speech. 6th Asia Pacific Biochar Conference 2022. Seoul Tourism Plaza, Seoul, Korea. October 24-27, 2022. Program p. 44.
4	Amare Mezgebu (USP), Xin Liu (USP), Mingist Minwyelet (BDU), Syuhei Ban (USP). Effects of Food Quality on Crustacean Zooplankton Life History Performance. 2024年プランクトン学会春季シンポジウム (The Plankton Society of Japan 2024 Spring Symposium), Tokyo, March 15, 2024.
5	Kanako Ishikawa (LBERI). Monitoring Ecosystem Change to Build Sustainable Lakescapes-Case Studies from Lake Biwa, Japan. ILEC International Webinar (Online). June 23, 2025.

* is an oral presentation.

1*	Masatoshi Kishi (SU), Tatsuki Toda (SU), Shinjiro Sato (SU), Mutsumi Sekine (SU), Masaaki Fujiwara (SU). Management of invasive water hyacinth and its effective utilization for energy & nutrition in Lake Tana, Ethiopia. ―Online EcoSummit2021, Online - Live and On-demand, 14 June 2021.
2*	Masatoshi Kishi (SU), Akinori Fujita (SU), Mutsumi Sekine (SU), Kazuo Okamura (SU), Tatsuki Toda (SU). Purification of anaerobic digestion effluent for edible microalgae culture: combination of appropriate technologies. ―International Conference on Algal Biomass, Biofuels and Bioproducts (AlgalBBB 2021), Online – Live and On-demand, 14–16 June 2021, ID: O6B.05.
3	Yudai Kohira (SU), Shinjiro Sato (SU). Enhanced adsorption capacity of biochars derived from water hyacinth for ammonium-nitrogen by different pre- and post-treatments. ―18th World Lake Conference. University of Guanajuato, Guanajuato, Mexico (Online), November 9-11, 2021.
4	Kaito Murakami (SU), Shinjiro Sato (SU). Optimization of mixing ratios of binders and organic matter for charcoal briquette using biochars derived from water hyacinth. ―18th World Lake Conference. University of Guanajuato, Guanajuato, Mexico (Online), November 9-11, 2021.
5*	Anas Hijazi (SU), Pranshu Bhatia (SU), Masaaki Fujiwara (SU), Shinichi Akizuki (SU), Nigus Gabbiye Habtu (BDU), Tatsuki Toda (SU). Effect of sedimentation process on the methane generation from compressed water hyacinth juice. ―18th World Lake Conference. University of Guanajuato, Guanajuato, Mexico (Online), November 9-11, 2021.
6*	Wubayehu Mesfin (BDU), Hailemariam Zewdu (BDU), Nigus Gabbiye Habtu (BDU), Masatoshi Kish (SU), Solomon Addisu (BDU), Shinjiro Sato (SU). Anaerobic digestion of water hyacinth juice in upflow bubble column bioreactor for production of biogas and nutrient recovery. ―18th World Lake Conference. University of Guanajuato, Guanajuato, Mexico (Online), November 9-11, 2021.
7*	Shinichi Akizuki (SU), Pranshu Bhatia (SU), Agbor-Ambang Mfor Ebot (SU), Masaaki Fujiwara (SU), Nigus Gabbiye Habtu (BDU), Shinjiro Sato (SU), Tasuki Toda (SU). Biogas production and nutrient recovery from compressed water hyacinth juice using an upflow anaerobic digester. ―5th International Postgraduate Conference on Biotechnology (IPCB2021), Universiti Malaysia Sabah, Malaysia (Online), December 8-10, 2021.
8	Hiroko Tobari (SU), Shinjiro Sato (SU). Adsorption capacity for nitrate by biochars derived from water hyacinth. ―5th International Postgraduate Conference on Biotechnology (IPCB2021), Universiti Malaysia Sabah, Malaysia (Online), December 8-10, 2021.
9	Shun Saito (SU), Shinjiro Sato (SU). Adsorption of phosphate by biochar derived from water hyacinth. ―5th International Postgraduate Conference on Biotechnology (IPCB2021), Universiti Malaysia Sabah, Malaysia (Online), December 8-10, 2021.
10*	Akinori Fujita (SU), Masatoshi Kishi (SU), Mutsumi Sekine (SU), Tatsuki Toda (SU). Treatment of anaerobic digestion effluent by slow sand filtration combined with activated sludge process and activated carbon filtration. ―5th International Postgraduate Conference on Biotechnology (IPCB2021), Universiti Malaysia Sabah, Malaysia (Online), December 8-10, 2021.
11*	Most Fahima Ahmed Anny, Taiabur Rahman Tuhin, Xin Liu, Shuhei Ban (USP). Effective utilizations of excess-growth aquatic macrophytes in lake ecosystem through anaerobic digestion (AD) and culturing microalgae using the AD effluents. ―13th IWA Specialist conference on Wastewater Ponds and Algal Technologies. Melbourne, Australia. July 3-6, 2022.
12*	Y. Kodama, Xin Liu, Most Fahima Ahmed Anny and Shuhei Ban. Arthrospira platensis as food for culturing crustacean zooplankton. ―13th IWA Specialist conference on Wastewater Ponds and Algal Technologies、Melbourne、Australia. July 3-6, 2022.
13*	Mutsumi Sekine, Akari Yoshida, Masatoshi Kishi, and Tatsuki Toda (SU). High NH3 tolerance of Arthrospira platensis and its relation to intracellular pH. ―13th IWA Specialist conference on Wastewater Ponds and Algal Technologies、Melbourne、Australia. July 3-6, 2022.
14*	Ji Cai (LBERI), Kanako Ishikawa (LBERI), Chunmeng Jiao (LBERI), Mulatie Mekonnen (LTaWPDA), Solomon Addisu (BDU), Ayalew Wondie (LTaWPDA), Shinjiro Sato (SU). Water hyacinth infestation in Lake Tana, Ethiopia – a review of population dynamics. ―SIL 2022 Congress. Berlin, Germany, August 7-10, 2022.
15*	Kanako Ishikawa (LBERI), Hiroki Haga（琵琶湖博物館）, Eiso Inoue (LBERI), Ji Cai (LBERI), Yoichiro Sakai (LBERI), Chumming Jiao (LBERI). Decadal ecological recovery associated with removing overgrown macrophytes. ―SIL 2022 Congress. Berlin, Germany, August 7-10, 2022.
16	Jang Dajeong (SU), Shinjiro Sato (SU). Effect of cassava starch as binder of biochar briquettes derived from water hyacinth. ―6th Asia Pacific Biochar Conference 2022. Seoul Tourism Plaza, Seoul, Korea. October 24-27, 2022. Program p. 83.
17	Tassapak Wutisirirattanachai (SU), Shinjiro Sato (SU). Optimization of hydrothermal carbonization of compressed water hyacinth and other biomass for energy usage. ―6th Asia Pacific Biochar Conference 2022. Seoul Tourism Plaza, Seoul, Korea. October 24-27, 2022. Program p. 95.
18	Masaya Ichitani (SU), Shinjiro Sato (SU). Effect of biochar modified with metal on soil aggregate in clayey soil. ―6th Asia Pacific Biochar Conference 2022. Seoul Tourism Plaza, Seoul, Korea. October 24-27, 2022. Program p. 82.
19	Hiroko Tobari (SU), Shinjiro Sato (SU). Nitrate adsorption capacity of metal-modified biochars derived from water hyacinth. ―6th Asia Pacific Biochar Conference 2022. Seoul Tourism Plaza, Seoul, Korea. October 24-27, 2022. Program p. 94.
20	Shun Saito (SU), Shinjiro Sato (SU). Phosphorus adsorption of metal-modified biochars derived from water hyacinth. ―6th Asia Pacific Biochar Conference 2022. Seoul Tourism Plaza, Seoul, Korea. October 24-27, 2022. Program p. 92.
21*	Yudai Kohira (SU), Shinjiro Sato (SU). Ammonium adsorption capacity and mechanism of modified biochars derived from water hyacinth. ―6th Asia Pacific Biochar Conference 2022. Seoul Tourism Plaza, Seoul, Korea. October 24-27, 2022. Program p. 72.
22*	Meselu Desalew Fentie (SU), Shinjiro Sato (SU). Water hyacinth biochar for sustainable crop production in Ethiopia. ―6th Asia Pacific Biochar Conference 2022. Seoul Tourism Plaza, Seoul, Korea. October 24-27, 2022. Program p. 69.
23*	Most Fahima Ahmed Anny (USP), Taiabur Rahman Tuhin (USP), Xin Liu (USP), Syuhei Ban (USP). Enhancement of ß-glucan production in two Arthrospira species using phosphorus-limited anaerobic digestion effluents from water hyacinth. ―ASLO aquatic science meeting 2023, Palma de Mallorca, Spain, June 4-9, 2023.
24	Ji Cai (LBERI), Kanako Ishikawa (LBERI), Chunmeng Jiao (LBERI), Mulatie Mekonnen (LTaOWPDA), Solomon Addisu (BDU), Ayalew Wondie (LTaOWPDA), Shinjiro Sato (SU). Saving Lake Tana from Water hyacinth Infestation: Understanding the Population Dynamics for Sustainable Management Strategies. ―The 10th EAFES International Congress. Jeju, Korea, July 17-20, 2023.
25*	Amare Mezgebu (USP), Xin Liu (USP), Minwyelet Mingist (BDU) and Syuhei Ban (USP). Evaluating food quality of Arthrospira platensis for rearing Daphnia magna. ―7th International Conference on Ecosystem Conservation and Sustainable Development, Hawassa, Ethiopia, July 20-21, 2023.
26*	Getachew Bayable (SU), Ji Cai (LBERI), Mulatie Mekonnen (LTaWDPA), Solomon Addisu Legesse (BDU), Kanako Ishikawa (LBERI), Kuwahara Victor. Shinichi (SU). Spatiotemporal variability and trend analysis of surface water temperature and association with turbidity in Lake Tana, Ethiopia. ―6th International Postgraduate Conference on Biotechnology (IPCB2023). National University of Shingapore, Shingapore. August 22-August 24, 2023.
27*	Woldie Ayirkm (SU), Chowdhary AK (SU), Sekine M (SU), Kishi M (SU), Kurosawa N (SU), Toda T (SU). Fast-growing native Limnospira fusiformis isolated from Soda Lakes in Ethiopia. ―6th International Postgraduate Conference on Biotechnology (IPCB 2023). The National University of Singapore, August 22-24, 2023.
28*	Adino Andaregie(SU) , Satoshi Sasaki(SU) , Hirohisa Shimura(SU), Mitsuko Chikasada(SU), Isao Takagi(SU). Understanding the factors influencing urban Ethiopian consumers' consumption intention of spirulina-enriched bread. ―International Conference on Business and Economics (ICBUSECO-2023) Bangkok, Thailand, August 25, 2023.
29*	Pranshu Bhatia (SU), Masaaki Fujiwara (SU), Daiki Maruyama (SU), Shin-ichi Akizuki (SU), Nigus Gabbiye Habtu (BDU), Shinjiro Sato (SU), Tatsuki Toda (SU). Evaluating the treatment performance of an up-flow anaerobic sludge blanket reactor using water hyacinth juice as substrate. ―9th IWA-ASPIRE Conference and Exhibition 2023. Kaohsiung, Taiwan, October 22-26, 2023.
30*	Daiki Maruyama (SU), Shin-ichi Akizuki (SU), Mutsumi Sekine (SU), Nigus Gabbiye Habtu (BDU), Shinjiro Sato (SU), Tatsuki Toda (SU). Enhance Water Hyacinth Juice Treatment in an Anaerobic Sequential Batch Reactor by Biochar Derived from Coffee Husk. ―9th IWA-ASPIRE Conference and Exhibition 2023. Kaohsiung, Taiwan, October 22-26, 2023.
31*	Masaaki FUJIWARA (SU), Asuka KANEDA (SU), Naoki MIZUNO (SU), Masatoshi KISHI (SU), Shinjiro SATO (SU), Tatsuki TODA (SU). Effect of shredding method and compression pressure on the water hyacinth for nutrient and energy recovery by anaerobic digestion. ―9th IWA-ASPIRE Conference and Exhibition 2023. Kaohsiung, Taiwan, October 22-26, 2023.
32	Kanako KIMURA (SU), Daiki OGASAWARA MARUYAMA (SU), Masaaki FUJIWARA (SU), Shin-ichi AKIZUK (SU), Shinjiro SATO (SU), Tatsuki TODA (SU). Effect of Charcoal Powder Addition on Upflow Anaerobic Sludge Blanket (UASB) Treatment of Water Hyacinth Juice. ―9th IWA-ASPIRE Conference and Exhibition 2023. Kaohsiung, Taiwan, October 22-26, 2023.
33*	Yudai Kohira (SU), Shinjiro Sato (SU). Reduction of nitrogen loss from anaerobic digestion effluent applied to soil using modified biochars derived from water hyacinth. ―ASA-CSSA-SSSA International Annual Meeting. St. Louis, Missouri, United States of America. October 29-November 1, 2023.
34*	Yuka Masubuchi (SU), Shinjiro Sato (SU). Effects of different acid treatments on functional biochar on soil aggregate formation in Ethiopian soils. ―ASA-CSSA-SSSA International Annual Meeting. St. Louis, Missouri, United States of America. October 29-November 1, 2023.
35*	Ryota Daniel Kamiuchi (SU), Shinjiro Sato (SU). Improving resistance and resilience of an Ethiopian soil to hydrological stresses through biochar application. ―ASA-CSSA-SSSA International Annual Meeting. St. Louis, Missouri, United States of America. October 29-November 1, 2023.
36*	Miyuki Saito (SU), Shinjiro Sato (SU). Establishment of phosphorus extraction method from water hyacinth ash. ―ASA-CSSA-SSSA International Annual Meeting. St. Louis, Missouri, United States of America. October 29-November 1, 2023.
37*	Masaya Ichitani (SU), Shinjiro Sato (SU). Effect of metal-modified biochar derived from water hyacinth on soil aggregate. ―ASA-CSSA-SSSA International Annual Meeting. St. Louis, Missouri, United States of America. October 29-November 1, 2023.
38*	Dajeong Jang (SU), Shinjiro Sato (SU). Effects on soil characteristics from application of ash derived from water hyacinth. ―ASA-CSSA-SSSA International Annual Meeting. St. Louis, Missouri, United States of America. October 29-November 1, 2023.
39*	Shinichi Akizuki (SU), Pranshu Bhatia (SU), Nigus Gabbiye Habtu (BDU), Tatsuki Toda (SU), Shinjiro Sato (SU). Treatment of Water Hyacinth Juice in an Up-Flow Anaerobic Digester: Process Stability and Quality of Digestate's Macronutrients. ―11th EAI International Conference on Advancements of Science and Technology (EAI-ICAST). Bahir Dar, Ethiopia, November 24-26, 2023.
40*	Pranshu Bhatia (SU), Anas Hijazi (SU), Shinichi Akizuki (SU), Nigus Gabbiye Habtu (BDU), Shinjiro Sato (SU), Tatsuki Toda (SU). Effect of spontaneous sedimentation on the chemical composition of compressed water hyacinth juice as a pretreatment for anaerobic digestion: Comparison of different growing areas. ―11th EAI International Conference on Advancements of Science and Technology (EAI-ICAST). Bahir Dar, Ethiopia, November 24-26, 2023.
41*	Ewunetu Tazebew (IU), Solomon Addisu (BDU), Eshetu Bekele (Adama Science and Technology University), Asmamaw Alemu (University of Gondar), Berhanu Belay (IU), Shinjiro Sato(SU). Sustainable soil health and agricultural productivity with biochar based indigenous organic fertilizers in acidic soils: insights from northwestern highlands of Ethiopia. ―2nd Soil Symposium. International Livestock Research Institute, Addis Ababa, Ethiopia, February 13, 2024.
42*	Ewunetu Tazebew (IU), Solomon Addisu (BDU), Eshetu Bekele (Adama Science and Technology University), Asmamaw Alemu (University of Gondar), Berhanu Belay (IU), Shinjiro Sato (SU). Traditional charcoal production system improvements for increased livelihood and low carbon emissions in subtropical highlands of Ethiopia. ―4th African Graduate Students Conference. Bahir Dar, Ethiopia. June 10, 2024.
43*	Getachew Bayable (SU), Ji Cai (LBERI), Mulatie Mekonnen (LTaWDPA), Solomon Addisu Legesse (BDU), Kanako Ishikawa (LBERI), Shinjiro Sato (SU), Victor Shinichi Kuwahara (SU). Impact of water hyacinth infestation on water quality parameters in Lake Tana, Ethiopia. ―IEEE International Geoscience and Remote Sensing Symposium. Athens, Greece. July 7-12, 2024.
44*	Ewunetu Tazebew (IU), Solomon Addisu (BDU), Eshetu Bekele (Adama Science and Technology University), Asmamaw Alemu (University of Gondar), Berhanu Belay (IU), Shinjiro Sato (SU). Improving traditional charcoal production system for increased livelihoods and lower carbon emissions in subtropical highlands of Ethiopia. ―International Conference on Pollution Control & Sustainable Environment. Vienna, Austria. September 6-7, 2024.
45*	Pranshu Bhatia (SU), Masaaki Fujiwara (SU), Tatsuki Toda (SU). Comparing thermal hydrolysis and steam explosion pretreatment on methane generation from different lignocellulosic aquatic weeds. ―18th International Water Association World Conference on Anaerobic Digestion (IWA-AD), Istanbul, Türkiye, June 2-6, 2024.
46*	Amare Mezgebu（USP）, Xin Liu（Guangxi Academy of Sciences）, Minwyelet Mingist（BDU）, Ayirkm Adugna（SU）, Tatsuki Toda(SU）, Syuhei Ban（USP）. Effects of algal food quality on the life history traits of Eodiaptomus japonicus (Copepoda: Calanoida). ―15th International Conference on Copepoda, Hiroshima, June 2-7, 2024.
47	Pranshu BHATIA (SU), Shin-ichi AKIZUKI (SU), Tatsuki TODA (SU), Shinjiro SATO (SU). Temperature optimization in anaerobic digestion of water hyacinth juice: fed-batch and high-rate continuous UASB studies. ―Water and Environment Technology Conference (WET2024) (岡山大学), July 21st-22nd, 2024.
48*	Amare Mezgebu（USP）, Xin Liu（Guangxi Academy of Sciences）, Minwyelet Mingist（BDU）, Syuhei Ban（USP）. Cholesterol supplementation improved food quality of Arthrospira platensis for culturing Daphnia magna. ―1st International Conference on Novel Photorefineries for Resource Recovery, Valladolid, September 9-11, 2024.
49	Yuka Takeshita (SU), Shinjiro Sato (SU). Phosphate adsorption by biochar derived from water hyacinth modified with Mg/Al layered double hydroxides. ―The 2nd International Conference on Biochar Research and Application & The 7th Asia Pacific Biochar Conference. Shenyang, China. September 20-22, 2024.
50	Yuka Masubuchi (SU), Shinjiro Sato (SU). Phosphorus species transformation in biochar pyrolyzed with calcium carbonate and its potential use as phosphorus fertilizer. ―The 2nd International Conference on Biochar Research and Application & The 7th Asia Pacific Biochar Conference. Shenyang, China. September 20-22, 2024.
51	Mayumi Nakanowatari (SU), Shinjiro Sato (SU). Nitrogen oxides suppression effect by metal treatment in the pyrolysis and combustion process of water hyacinth. ―The 2nd International Conference on Biochar Research and Application & The 7th Asia Pacific Biochar Conference. Shenyang, China. September 20-22, 2024.
52	Kaname Furuhashi (SU), Shinjiro Sato (SU). Optimization and quality evaluation of water hyacinth-derived biochar compost. ―The 2nd International Conference on Biochar Research and Application & The 7th Asia Pacific Biochar Conference. Shenyang, China. September 20-22, 2024.
53*	Andrew Tay Yu Yan (SU), Shinjiro Sato (SU). Evaluating slow releasing performance of urea-encapsulated hydrogel with biochar derived from water hyacinth. ―The 2nd International Conference on Biochar Research and Application & The 7th Asia Pacific Biochar Conference. Shenyang, China. September 20-22, 2024.
54*	Ewunetu Tazebew (IU), Shinjiro Sato (SU), Solomon Addisu (BDU), Eshetu Bekele (Adama Science and Technology University), Asmamaw Alemu (University of Gondar), Berhanu Belay (IU). Traditional smallholder plantation charcoal production system improvements for sustainable charcoal production and low carbon emissions in the subtropical highlands of Ethiopia. ―1st Nordic-Baltic REACH conference. Vilnius, Lithuania. October 8-9, 2024.
55*	Robel M. ASHENAFI, K. YANO, G. BAYABLE, G. TERAUCHI, and V. S. KUWAHARA (SU). Monitoring environmental factors in coastal and inland waters using remote sensing technology. ―12th-Asian Workshop on Ocean Color and 21st-Japan/Korea Workshop on Ocean Color, Bali, Indonesia. Oct 21-24, 2024.
56*	Tassapak Wutisirirattanachai (SU), Shinjiro Sato (SU). Hydrothermal carbonization of water hyacinth and sludge mixtures: addressing biofuel and fertilizer challenges. ―ASA-CSSA-SSSA International Annual Meeting. San Antonio, Texas, USA. November 10-13, 2024.
57*	Mekuanint Lewoyehu Shferaw (SU), Shinjiro Sato (SU). Sustainable enhancement of soil resistance to acidification stress and nutrient dynamics using water hyacinth biochar. ―ASA-CSSA-SSSA International Annual Meeting. San Antonio, Texas, USA. November 10-13, 2024.
58*	Yudai Kohira (SU), Shinjiro Sato (SU). Mathematical modeling and prediction of nitrification process in soil co-application of inorganic or organic nitrogen fertilizers and biochar. ―ASA-CSSA-SSSA International Annual Meeting. San Antonio, Texas, USA. November 10-13, 2024.
59	Pranshu Bhatia (SU), Shin-ichi Akizuki (SU), Tatsuki Toda (SU), Shinjiro Sato (SU). Integrated Approach for Nutrient Recovery and Wastewater Treatment: Anaerobic Digestion-DHS System. ―IWA Nutrient Removal and Recovery Conference, Brisbane, Australia, November 17-21, 2024.
60*	Adino Andargie（SU）. The Impossible Trinity and Role of Governance in Shaping Foreign Direct Investment Inflows (FDI) in Developing Economies. ―The 38th RSEP International Conference on Economics, Finance, and Business. Atana Hotel, Dubai, UAE. [On-site & Online Conference]. January 30-31, 2025.
61*	Adino Andargie（SU）. Short-Term Economic Responses to Ethiopian Floating Exchange Rate System: A Mixed Method Analysis of Discourse and Themes. ―The MIRDEC-23rd International Academic Conference on Economics, Business, and Contemporary Discussions in Social Science (Global Meeting of Social Science Community). Hotel HCC St. Moritz, Barcelona, Spain. [On-site & Online Conference]. October 29-30, 2024.
62	Most Fahima Ahmed Anny (USP), Taiabur Rahman Tuhin (USP), Xin Liu (USP), A. Adugna (IU), Mutsumi Sekine (SU), Shin-ichi Akizuki (SU), Tdatsuki Toda (SU) and Syuhei Ban (USP), 2025. Cost-effective cultivation of Ethiopian native strains of Limnospira fusiformis using anaerobic digestion effluent of water hyacinth. ―Algal BBB 2025, Arizona. 16-18 June, 2025.
63*	Kanako Ishikawa, Ji Cai, Chunmeng Jiao, Yoichiro Sakai (LBERI), Mulatie Mekonen, Hibre Mengist, Solomon Addisu (BDU), Hiroki Imamura, Diego Alberto, Victor Shinichi Kuwabara, Getachew Bayable, Robel Milashu, Shinjiro Sato (SU), Ayalew Wondie, Mezgebu Dagnaw (LTOWPDA). Development of a water hyacinth management system in Lake Tana, head waters of the Blue Nile, Ethiopia. ―World Lake Conference 20 Brisbane. July 23, 2025.
64*	Robel M. ASHENAFI, G. TERAUCHI, G.B. TIRUNEH, S. SATO V.S. KUWAHARA(SU). Monitoring Water Quality and Invasive Species using Google Earth Engine: Applications from Global to Regional Scale. ―Geo for Good Summit Singapore. September 8-11, 2025.
65*	Tassapak Wutisirirattanachai (SU), Shinjiro Sato (SU). Nitrogen Fate in Soil after Application of Liquid Fertilizer Derived from Co-Hydrothermal Carbonization of Wet Biomass. ―CANVAS 2025. Salt Lake City, Utah, USA. November 9-12, 2025.
66*	Yudai Kohira (SU), Shinjiro Sato (SU). Predictive Modeling of Nitrogen Leaching in Soils Co-Applied with Biochar and Anaerobic Digestion Effluent. ―CANVAS 2025. Salt Lake City, Utah, USA. November 9-12, 2025.
67*	Yuka Takeshita (SU), Shinjiro Sato (SU). Evaluation of Fertilizer and Carbon Sequestration Effect of Biochar Pellets. ―CANVAS 2025. Salt Lake City, Utah, USA. November 9-12, 2025.
68*	Shunsuke Kurata (SU), Shinjiro Sato (SU). Adsorption Performance of Nitrate Nitrogen Onto Biochar By Different Acid Treatments. ―CANVAS 2025. Salt Lake City, Utah, USA. November 9-12, 2025.
69*	Thanchanok Duenchai (SU), Shinjiro Sato (SU). Amelioration of Soil Salinity with Biochar for Sodium Leaching Saline Soil. ―CANVAS 2025. Salt Lake City, Utah, USA. November 9-12, 2025.
70*	Kaname Furuhashi (SU), Shinjiro Sato (SU). Evaluation of the Quality and Environmental Impact of Co-Composting Water Hyacinth-Derived Biochar Compost. ―CANVAS 2025. Salt Lake City, Utah, USA. November 9-12, 2025.
71*	Wondwosson Minale (SU), Shinjiro Sato (SU). Optimization of Composts of Organic Wastes Using Water Hyacinth Biochar for Plant Nutrients. ―CANVAS 2025. Salt Lake City, Utah, USA. November 9-12, 2025.
72*	Akira Hisajima (SU), Shinjiro Sato (SU). Study on PFAS Adsorption Using Biochar Derived from Alternanthera Philoxeroides. ―CANVAS 2025. Salt Lake City, Utah, USA. November 9-12, 2025.
73*	Mekuanint Lewoyehu Shferaw (SU), Shinjiro Sato (SU). Sustainable Alleviation of Soil Acidity and Enhancement of Soil Properties and Plant Growth through Water Hyacinth Biochar Integration with Organic and Synthetic Fertilizers. ―CANVAS 2025. Salt Lake City, Utah, USA. November 9-12, 2025.
74	Tassapak Wutisirirattanachai (SU), Shinjiro Sato (SU). Optimization and Environmental Evaluation of Solid Fuel and Liquid Fertilizer Produced Via Co-Hydrothermal Carbonization of High-Moisture Biomass. ―CANVAS 2025. Salt Lake City, Utah, USA. November 9-12, 2025.
75	Yudai Kohira (SU), Shinjiro Sato (SU). Temperature-Dependent Mechanisms of Ammonium and Nitrate Adsorption By Water Hyacinth-Derived Biochar. ―CANVAS 2025. Salt Lake City, Utah, USA. November 9-12, 2025.
76*	Daiki Maruyama (SU), Shin-ichi Akizuki (SU), Nigus Gabbiye Habtu (BDU), Shinjiro Sato (SU), Tatsuki Toda (SU), Kiyohiko Nakasaki (SU). Impact of Coffee Husk Biochar on Anaerobic Digestion of Water Hyacinth Juice: Influence of Electrical Conductivity. ―The 3R International Scientific Conference on Material Cycles and Waste Management 2026. Bangkok, Thailand. March 9, 2026.
77	Robel M. ASHENAFI (SU), Getachew B. TIRUNEH (BDU), J. CAI (LBERI), C. JIAO (LBERI), K. ISHIKAWA (LBERI), S. ADDISU (BDU), S. SATO (SU) , V.S. KUWAHARA (SU). Monitoring Water Quality Parameters and Water Hyacinth Expansion in Lake Tana, Ethiopia. ―SATREPS-EARTH Project Symposium. Addis Ababa, Ethiopia. March 13, 2026.
78	Ji Cai (LBERI), Chunmeng Jiao (LBERI), Mulatie Mekonnen (BDU), Solomon Addisu Legesse (BDU), Kanako Ishikawa (LBERI), Ayalew Wondie(LTaOWPDA), Shinjiro Sato (SU). Saving Lake Tana from Water Hyacinth Infestation - Understanding the Population Dynamics for Sustainable Management Strategies. ―SATREPS-EARTH Project Symposium. Addis Ababa, Ethiopia. March 13, 2026.
79	Daiki Maruyama (SU), Shin-ichi Akizuki (SU), Nigus Gabbiye Habtu (BDU), Shinjiro Sato (SU), Tatsuki Toda (SU). Effect of different biofilm carrier on sequential batch anaerobic digestion of compressed water hyacinth juice. ―SATREPS-EARTH Project Symposium. Addis Ababa, Ethiopia. March 13, 2026.
80	Sewunet Haymanot (SU), Anupreet Kaur Chowdhary (SU), Pranshu Bhatia (SU), Mutsumi Sekine (NIES), Woldie Ayirkm (IU), Tatsuki Toda (SU). Limnospira fusiformis strain newly isolated in SATREPS-EARTH project: Semicontinuous cultivation of an indigenous Ethiopian Limnospira fusiformis under different pH and dilutions of anerobic digestion effluent. ―SATREPS-EARTH Project Symposium. Addis Ababa, Ethiopia. March 13, 2026.
81	Desalegn Tadesse Workie (SU), Anupreet Kaur Chowdhary (SU), Stella Chan On San (SU), Mutsumi Sekine (NIES), Ayirkm Adugna Woldie (IU), Ida Junichi (SU), Tatsuki Toda (SU). Optimization of microalgae harvesting using chitosan-coated magnetite nanoparticles: SATREPS-EARTH Project Symposium. ―SATREPS-EARTH Project Symposium. Addis Ababa, Ethiopia. March 13, 2026.
82	Mekuanint Lewoyehu Shferaw (SU), Shinjiro Sato (SU). Transformation of Soil Phosphorus Fractions through Water Hyacinth Biochar Integration with Organic and Inorganic Phosphorus Sources. ―SATREPS-EARTH Project Symposium. Addis Ababa, Ethiopia. March 13, 2026.
83	Tassapak Wutisirirattanachai (SU), Shinjiro Sato (SU). Co-Hydrothermal Carbonization as a Dual-conversion for Fuel and Fertilizer Production from High-Moisture Biomass. ―SATREPS-EARTH Project Symposium. Addis Ababa, Ethiopia. March 13, 2026.
84	Yudai Kohira (SU), Shinjiro Sato (SU). Mitigation of Nitrogen Losses and Development of a Leaching Prediction Model under Co-Application of Biochar and Different Nitrogen Sources. ―SATREPS-EARTH Project Symposium. Addis Ababa, Ethiopia. March 13, 2026.
85	Diego Alberto Herrera Ollachica (SU), Bismark Kweku Asiedu Asante, Hiroki Imamura (SU). Advancing Water Hyacinth Recognition: Integration of Deep Learning and Multispectral Imaging for Precise Identification. ―SATREPS-EARTH Project Symposium. Addis Ababa, Ethiopia. March 13, 2026.
86	Masashi Fujii (SU), Yoshiki Takayama (YNU), Chiaki Tomatsu (SU), Razif Harun (UPM), Fadhil Syukri (UPM), Fatimah Md Yusoff (UPM), Tatsuki Toda (SU). Development of a novel low-cost floating photobioreactor from SATREPS-COSMOS project: High value-added microalgae production in developing countries. ―SATREPS-EARTH Project Symposium. Addis Ababa, Ethiopia. March 13, 2026.

* is an oral presentation.

1*	Yudai Kohira (SU), Shinjiro Sato (SU). 異なる金属処理したコーヒー粕由来の機能性バイオ炭によるアンモニウムとリン酸の吸脱着性能 (Ammonium and phosphate adsorption and desorption performance of functional biochar derived from spent coffee grounds treated with different metals). ―The 2021 Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Hokkaido University (Online). September 14-16, 2021.
2*	Kaito Murakami (SU), Shinjiro Sato (SU). ホテイアオイ原料バイオ炭由来の炭団化における添加結着材と有機物の最適化 (Optimization of binding additives and organic matter for briquetting water hyacinth-derived biochar). ―The 2021 Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Hokkaido University (Online). September 14-16, 2021.
3*	Hiroko Tobari (SU), Shinjiro Sato (SU). 酸性化バイオ炭によるカドミウム汚染土壌のファイトレメディエーション (Phytoremediation of cadmium-contaminated soil using acidified biochar). ―The 2021 Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Hokkaido University (Online). September 14-16, 2021.
4*	Masatoshi Himeno (SU), Shinjiro Sato (SU). 有機肥料原料のバイオ炭ペレット肥料の施用効果 (Application effects of biochar pellet fertilizer made from organic fertilizer feedstocks). ―The 19th Research Conference of the Wood Carbonization Research Society, Ritsumeikan Univerisity (Online). September 16, 2021.
5*	Hiroko Tobari (SU), Shinjiro Sato (SU). 酸性化バイオ炭によるカドミウム汚染土壌のファイトレメディエーション (Phytoremediation of cadmium-contaminated soil using acidified biochar). ―The 19th Research Conference of the Wood Carbonization Research Society, Ritsumeikan Univerisity (Online). September 16, 2021.
6*	Yudai Kohira (SU), Shinjiro Sato (SU). 異なる金属処理したコーヒー粕由来の機能性バイオ炭による栄養塩吸脱着性能. (Nutrient adsorption and desorption performance of functional biochar derived from spent coffee grounds treated with different metals). ―The 19th Research Conference of the Wood Carbonization Research Society, Ritsumeikan Univerisity (Online). September 16, 2021.
7*	Kaito Murakami (SU), Shinjiro Sato (SU). ホテイアオイ原料バイオ炭由来の炭団化における添加結着材と有機物の最適化 (Optimization of binding additives and organic matter for briquetting water hyacinth-derived biochar). ―The 19th Research Conference of the Wood Carbonization Research Society, Ritsumeikan Univerisity (Online). September 16, 2021.
8*	Seo Esaki (SU), Mutsumi Sekine (SU), Masatoshi Kishi (SU), Tatsuki Toda(SU). 一重項酸素消去能 (SOAC) 測定法による微細藻類3種の脂溶性物質の抗酸化能評価 (Evaluation of antioxidant capacity of lipophilic substances from three microalgae species using singlet oxygen absorption capacity (SOAC) method). ―2021 Joint Meeting of the Japanese Association of Benthalogy and the Plankton Society of Japan, Kagoshima University (Online). September 2021.
9*	Masatoshi Kishi (SU), Mutsumi Sekine (SU), Kenji Tanaka (SU), Akari Yoshida (SU), Tatsuki Toda (SU). 屋外高層微細藻類リアクターにおける水圧対策と水温上昇抑制の検討 (Investigation of Water Pressure Countermeasures and Suppression of Water Temperature Rise in an Outdoor High-rise Microalgae Reactor). ―2021 Joint Meeting of the Japanese Association of Benthalogy and the Plankton Society of Japan, Kagoshima University (Online). September 2021.
10*	Masatoshi Kishi (SU), Kazuhiro Komatsu (Shinshu University), Kenji Tsuchiya (National Institute for Environmental Studies). 排水を用いた藻類生産におけるアンモニア毒性検知技術の開発 (Development of ammonia toxicity detection method for algal cultivation using wastewater). ―2021 Joint Meeting of the Japanese Association of Benthalogy and the Plankton Society of Japan, Kagoshima University (Online). September 2021.
11*	Akinori Fujita (SU), Masatoshi Kishi (SU), Mutsumi Sekine (SU), Tatsuki Toda (SU). 順次回分式活性汚泥処理と緩速ろ過の組合せによるメタン発酵消化液清澄化能の評価 (Evaluation of Purification Efficiency of Anaerobic Digestion Effluent by Combination of Sequential Batch Activated Sludge Treatment and Slow Filtration). ―The 57th Annual Meeting of the Japanese Society Of Water Treatment Biology (Online). October 28-30, 2021.
12*	Akinori Fujita (SU), Masatoshi Kishi (SU), Mutsumi Sekine (SU), Tatsuki Toda (SU). 活性汚泥法・砂ろ過・活性炭ろ過の組合せによる水草搾汁液由来メタン発酵消化液の清澄化能の評価 (Evaluation of Purification Efficiency of Effluent from Anaerobic Digester Treating Water Hyacinth Juice, by the Combination of Activated Sludge Method, Sand Filtration, and Activated Carbon Filtration). ―The 56th Annual Conference of Japan Society on Water Environment, University of Toyama (Online), March 16-18, 2022.
13	Masatoshi Kishi (SU), Midori Goto (SU), Mutsumi Sekine (SU), Ken Furuya (SU), Tatsuki Toda (SU). アンモニア供給法の改善によるハプト藻Isochrysis galbanaの高密度培養 (High-density culture of the haptophyte Isochrysis galbana by improving the ammonia supply method). ―The 56th Annual Conference of Japan Society on Water Environment, University of Toyama (Online), March 16-18, 2022.
14*	Anas Hijazi (SU), Pranshu Bhatia (SU), Masaaki Fujiwara (SU), Shin-ichi Akizuki (SU), Nigus Gabbiye Habtu (BDU), Tatsuki Toda (SU). ホテイアオイ圧搾液のメタン生成能に与える沈降前処理の影響 (Effect of sedimentation pretreatment on methane production potential of water hyacinth juice). ―The 56th Annual Conference of Japan Society on Water Environment, University of Toyama (Online), March 16-18, 2022.
15*	Meselu Desalew Fentie (SU), Shinjiro Sato (SU). Optimization of soil conditions for the sustainable enhancement of crop production through water hyacinth biochar on Ethiopian soil. ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Tokyo University of Agriculture. September 13-15, 2022. Abstract 68: 7-2-4.
16*	Masaya Ichitani (SU), Shinjiro Sato (SU). ホテイアオイ原料バイオ炭による異なる含水率土壌における団粒への影響 (Effect of water hyacinth-derived biochar on soil aggregation under different soil moisture contents). ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Tokyo University of Agriculture. September 13-15, 2022. Abstract 68: 7-2-3.
17*	Hiroko Tobari (SU), Shinjiro Sato (SU). ホテイアオイ由来機能性バイオ炭による土壌からの硝酸態窒素の溶脱防止効果 (Mitigation of nitrate nitrogen leaching from soil using functional biochar derived from water hyacinth). ―The 20th Research Conference of the Japan Carbonization Research Society, Kitakyushu International Conference Center. September 15-16, 2022. Abstract: pp. 51-52.
18*	Shun Saito (SU), Shinjiro Sato (SU). ホテイアオイ由来の金属処理バイオ炭を用いたリン酸吸着性能 (Phosphate adsorption performance of metal-treated biochar derived from water hyacinth). ―The 20th Research Conference of the Japan Carbonization Research Society, Kitakyushu International Conference Center. September 15-16, 2022. Abstract: pp. 47-48.
19*	Yudai Kohira (SU), Shinjiro Sato (SU). ホテイアオイ由来機能性バイオ炭によるアンモニウム態窒素吸着性能評価と吸着機構比較 (Evaluation of ammonium nitrogen adsorption performance and comparison of adsorption mechanisms by functional biochar derived from water hyacinth). ―The 20th Research Conference of the Japan Carbonization Research Society, Kitakyushu International Conference Center. September 15-16, 2022. Abstract: pp. 21-22.
20*	Jang Dajeong (SU), Shinjiro Sato (SU). ホテイアオイ原料バイオ炭のキャッサバ澱粉を使った炭団化 (Briquetting of water hyacinth-derived biochar using cassava starch). ―The 20th Research Conference of the Japan Carbonization Research Society, Kitakyushu International Conference Center. September 15-16, 2022. Abstract: pp. 11-14.
21*	Tassapak Wutisirirattanachai (SU), Shinjiro Sato (SU). Hydrothermal carbonization of compressed water hyacinth: Effects of operation parameters on energy conversion and characterization of products. ―The 20th Research Conference of the Japan Carbonization Research Society, Kitakyushu International Conference Center. September 15-16, 2022. Abstract: pp. 5-6.
22*	Masaaki Fujiwara (SU), Shin-ichi Akizuki (SU), Anas Hijazi (SU), Daiki Maruyama (SU), Shinjiro Sato (SU), Tatsuki Toda (SU). ホテイアオイ圧搾液の上向流式嫌気性汚泥床（UASB）処理における処理性能の評価 (Evaluation of performance in upflow anaerobic sludge blanket (UASB) treatment of water hyacinth pressed juice). ―The 58th Annual Meeting of the Japanese Society of Water Treatment Biology, Kumamoto University. November 2022.
23*	Ji Cai (LBERI), Chunmeng Jiao (LBERI), Mulatie Mekonnen (LTaWDPA), Solomon Addisu Legesse (BDU), Kanako Ishikawa (LBERI), Ayalew Wondie (LTaWDPA), Shinjiro Sato (SU). Water hyacinth infestation in Lake Tana, Ethiopia hinders the smooth implementation of SDGs. ―The 2023 Spring Conference of the Japanese Society of Fisheries Science, Tokyo University of Marine Science and Technology. March 28-31, 2023.
24	Naoki Hata (USP), 堀井智士 (USP), Xin Liu (USP), Shin-ichi Akizuki (SU), Minwyelet Mingist (BDU), Shinjiro Sato (SU), Shuhei Ban（USP). 琵琶湖内湖で繁茂するホテイアオイを原料としたメタン発酵消化液の肥料特性 (Fertilizer characteristics of methane fermentation digestate derived from water hyacinth harvested from Lake Biwa lagoons). ―The 2023 Spring Conference of the Japanese Society of Horticultural Science. March 15-22, 2023.
25*	Daiki Maruyama (SU), Shin-ichi Akizuki (SU), Mutsumi Sekine (SU), Tatsuki Toda (SU). コーヒー殻由来のバイオ炭添加によるホテイアオイ搾汁液のメタン発酵処理性能の向上 (Enhancement of methane fermentation performance of water hyacinth juice by adding spent coffee ground-derived biochar). ―The 57th Annual Conference of Japan Society on Water Environment. March 2023.
26	Kanako Kimura (SU), Masaaki Fujiwara (SU), Shin-ichi Akizuki (SU), Tatsuki Toda (SU). ホテイアオイ搾汁液の上向流嫌気槽処理における炭粉添加の影響 (Effect of biochar powder addition on upflow anaerobic reactor treatment of water hyacinth juice). ―The 57th Annual Conference of Japan Society on Water Environment. March 2023.
27*	Ryota Daniel Kamiuchi (SU), Shinjiro Sato (SU). Improving resistance and resilience of soils to hydrological stresses through biochar application. ―The 21st Research Conference of the Japan Carbonization Research Society, Tokyo Metropolitan Tama Business Activation Center. September 7-8, 2023.
28*	Meselu Desalew Fentie (SU), Shinjiro Sato (SU). Long-term effects of locally produced biochar derived from water hyacinth on soil nutrients and bread wheat production in Ethiopia. ―The 21st Research Conference of the Japan Carbonization Research Society, Tokyo Metropolitan Tama Business Activation Center. September 7-8, 2023.
29*	Kaito Murakami (SU), Shinjiro Sato (SU). ホテイアオイ原料バイオ炭の燃料及び土壌改良材利用におけるライフサイクルインパクトアセスメント（LCA） (Life cycle impact assessment (LCA) of water hyacinth-derived biochar for fuel and soil amendment applications). ―The 21st Research Conference of the Japan Carbonization Research Society, Tokyo Metropolitan Tama Business Activation Center. September 7-8, 2023.
30*	Yuka Masubuchi (SU), Shinjiro Sato (SU). 異なる酸処理における機能性バイオ炭のエチオピア土壌における団粒形成への影響 (Effect of functional biochar with different acid treatments on soil aggregation in Ethiopian soils). ―The 21st Research Conference of the Japan Carbonization Research Society, Tokyo Metropolitan Tama Business Activation Center. September 7-8, 2023.
31*	Mayumi Nakanowatari (SU), Shinjiro Sato (SU). 家庭用代替燃料におけるホテイアオイ原料の炭団燃焼時による生成ガスの評価 (Evaluation of gases produced during combustion of water hyacinth-derived biochar briquettes as household alternative fuels). ―The 21st Research Conference of the Japan Carbonization Research Society, Tokyo Metropolitan Tama Business Activation Center. September 7-8, 2023.
32*	Yudai Kohira (SU), Shinjiro Sato (SU). 機能性バイオ炭を用いた土壌からの嫌気性消化液由来窒素の損失低減 (Reduction of soil nitrogen loss derived from anaerobic digestate using functional biochar). ―The 21st Research Conference of the Japan Carbonization Research Society, Tokyo Metropolitan Tama Business Activation Center. September 7-8, 2023.
33*	Tassapak Wutisirirattanachai (SU), Shinjiro Sato (SU). クエン酸添加による水草と混合バイオマスの水熱炭化における相乗効果とエネルギー回収の改善 (Synergistic effects and energy recovery improvement in hydrothermal carbonization of aquatic plants and mixed biomass with citric acid addition). ―The 21st Research Conference of the Japan Carbonization Research Society, Tokyo Metropolitan Tama Business Activation Center. September 7-8, 2023.
34*	Masaya Ichitani (SU), Shinjiro Sato (SU). ホテイアオイ由来金属処理バイオ炭による土壌団粒への影響 (Effect of metal-treated biochar derived from water hyacinth on soil aggregation). ―The 21st Research Conference of the Japan Carbonization Research Society, Tokyo Metropolitan Tama Business Activation Center. September 7-8, 2023.
35*	Andrew Tay Yu Yan (SU), Shinjiro Sato (SU). Ammonium adsorption capacity of biochar-clay composites using water hyacinth as feedstock. ―The 21st Research Conference of the Japan Carbonization Research Society, Tokyo Metropolitan Tama Business Activation Center. September 7-8, 2023.
36*	Ryota Daniel Kamiuchi (SU), Shinjiro Sato (SU). Effectiveness biochar in improving resistance and resilience of an Ethiopian soil to hydrological stresses. ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Ehime University. September 12-14, 2023.
37*	Yuka Masubuchi (SU), Shinjiro Sato (SU). 異なる酸処理における機能性バイオ炭のエチオピア土壌における団粒形成への影響 (Effect of functional biochar with different acid treatments on soil aggregation in Ethiopian soils). ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Ehime University. September 12-14, 2023.
38*	Jang Dajeong (SU), Shinjiro Sato (SU). ホテイアオイ由来灰の土壌特性への影響評価 (Evaluation of the effects of water hyacinth-derived ash on soil properties). ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Ehime University. September 12-14, 2023.
39*	Miyuki Saito (SU), Shinjiro Sato (SU). ホテイアオイ焼却灰からのリン抽出方法の確立 (Establishment of a phosphorus extraction method from water hyacinth ash). ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Ehime University. September 12-14, 2023.
40*	Yudai Kohira (SU), Shinjiro Sato (SU). ホテイアオイ由来バイオ炭による土壌施用後の嫌気性消化液からのNH3揮散低減効果 (Mitigation effect of water hyacinth-derived biochar on NH3 volatilization from anaerobic digestate after soil application). ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Ehime University. September 12-14, 2023.
41*	Masaya Ichitani (SU), Shinjiro Sato (SU). ホテイアオイ由来金属処理バイオ炭による団粒への影響 (Effect of metal-treated biochar derived from water hyacinth on soil aggregation). ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Ehime University. September 12-14, 2023.
42*	Amare Mezgebu (USP), Xin Liu (USP), Minwyelet Mingist (BDU), Syuhei Ban (USP). Effects of single and mixture of Arthrospira and Chlamydomonas diets on rearing Daphnia magna. ―2023 Joint Meeting of the Japanese Association of Benthalogy and the Plankton Society of Japan, Hakodate. September 1-3, 2023.
43*	Amare Mezgebu (USP), Xin Liu (USP), Minwyelet Mingist (BDU), Syuhei Ban (USP). Nutritional constraints of Arthrospira platensis: a limitation by sterols. ―The 87th Conference of the Japanese Society of Limnology in Oita, Oita. October 12-15, 2023.
44*	Mayumi Nakanowatari (SU), Shinjiro Sato (SU). 家庭用代替燃料におけるホテイアオイ原料の炭団燃焼時による生成ガスの評価 (Evaluation of gases produced during combustion of water hyacinth-derived biochar briquettes as household alternative fuels). ―The 19th Biomass Science Conference, Nigiwai Kouryukan AU (Akita). December 7-9, 2023.
45*	Tassapak Wutisirirattanachai (SU), Shinjiro Sato (SU). クエン酸添加による水草と共生バイオマスの水熱炭化におけるエネルギー回収と炭化物特性の改善 (Synergistic effects and energy recovery improvement in hydrothermal carbonization of aquatic plants and mixed biomass with citric acid addition). ―The 19th Biomass Science Conference, Nigiwai Kouryukan AU (Akita). December 7-9, 2023.
46*	Kaito Murakami (SU), Shinjiro Sato (SU). ホテイアオイ原料バイオ炭の燃料及び土壌改良材利用におけるライフサイクルアセスメント（LCA） (Life cycle assessment (LCA) of water hyacinth-derived biochar for fuel and soil amendment applications). ―The 19th Biomass Science Conference, Nigiwai Kouryukan AU (Akita). December 7-9, 2023.
47*	Daiki Maruyama (SU), Shin-ichi Akizuki (SU), Masaaki Fujiwara (SU), Shinjiro Sato (SU), Tatsuki Toda (SU). ホテイアオイ搾汁液の高負荷反復回分メタン発酵におけるバイオ炭の熱分解温度の影響 (Effect of biochar pyrolysis temperature on high-load repeated batch methane fermentation of water hyacinth juice). ―The 58th Annual Conference of Japan Society on Water Environment, Ito Campus, Kyushu University (Fukuoka). March 6-8, 2024.
48*	Masaaki Fujiwara (SU), 金田明日香 (SU), Masatoshi Kishi (SU), Shinjiro Sato (SU), Tatsuki Toda (SU). ホテイアオイの粉砕・圧搾処理後の液分の上向流式嫌気性汚泥床法（UASB）による高速処理 (High-rate upflow anaerobic sludge blanket (UASB) treatment of liquid fraction derived from crushed and pressed water hyacinth). ―The 58th Annual Conference of Japan Society on Water Environment, Ito Campus, Kyushu University (Fukuoka). March 6-8, 2024.
49	Pranshu Bhatia (SU), Shin-ichi Akizuki (SU), Tatsuki Toda (SU), Shinjiro Sato (SU). 限界への挑戦嫌気性消化液を処理する下降流型スポンジバイオフィルムリアクターにおける水理学的滞留時間の影響 (Pushing the limits: Effect of hydraulic retention time in downflow sponge biofilm reactors treating anaerobic digestate). ―The 58th Annual Conference of Japan Society on Water Environment, Ito Campus, Kyushu University (Fukuoka). March 6-8, 2024.
50	Kanae Hayashi (SU), Mutsumi Sekine (SU), 小島咲 (SU), Woldie Ayirkm Adugna (SU), Tatsuki Toda(SU). 異なる窒素源によるエチオピア産藍藻Limnospira fusiformisの増殖特性評価 (Evaluation of growth characteristics of Ethiopian cyanobacterium Limnospira fusiformis using different nitrogen sources). ―The 58th Annual Conference of Japan Society on Water Environment, Ito Campus, Kyushu University (Fukuoka). March 6-8, 2024.
51*	Sewunet Haymanot (SU), Yuanjun Xia (SU), Anupreet Kaur Chowdhary (SU), Mutsumi Sekine (SU), Tatsuki Toda (SU). エチオピアから分離されたLimnospira fusiformisの異なるアンモニウム供給法における増殖評価 (Evaluation of growth of Limnospira fusiformis isolated from Ethiopia under different ammonium supply methods). ―The 58th Annual Conference of Japan Society on Water Environment, Ito Campus, Kyushu University (Fukuoka). March 6-8, 2024.
52*	Workie Desalegn (SU), Anupreet Kaur Chowdhary (SU), Mutsumi Sekine (SU), Tatsuki Toda (SU). 微細藻類培養におけるリアルタイムモニタリングおよび自動回収システムの開発：バイオマス・環境要因モニタリングに向けた低コスト手法 (Development of a real-time monitoring and automated harvesting system for microalgae cultivation: A low-cost approach for biomass and environmental factor monitoring). ―The 58th Annual Conference of Japan Society on Water Environment, Ito Campus, Kyushu University (Fukuoka). March 6-8, 2024.
53*	Woldie Ayirkm (SU), Anupreet Kaur Chowdhary (SU), Mutsumi Sekine (SU), Norio Kurosawa (SU), Tatsuki Toda (SU). エチオピアの強アルカリ性湖で単離されたLimnospira fusiformisの高増殖株の探索 (Screening for high-growth strains of Limnospira fusiformis isolated from highly alkaline lakes in Ethiopia). ―The 58th Annual Conference of Japan Society on Water Environment, Ito Campus, Kyushu University (Fukuoka). March 6-8, 2024.
54*	Mayumi Nakanowatari (SU), Shimjiro Sato (SU). ホテイアオイ炭団の窒素酸化物生成抑制効果に関する評価 (Evaluation of suppression effect on nitrogen oxide formation during combustion of water hyacinth biochar briquettes). ―The 33rd Conference of the Japan Institute of Energy, Waseda University. August 7-8, 2024.
55*	Tassapak Wutisirirattanachai (SU), Shinjiro Sato (SU). 水草と有機廃棄物バイオマス混合の水熱炭化物による固形燃料の性能評価 (Performance evaluation of solid fuel produced from hydrochar derived from aquatic plants and organic waste biomass mixtures). ―The 33rd Conference of the Japan Institute of Energy, Waseda University. August 7-8, 2024.
56*	Ryota Daniel Kamiuchi (SU), Shinjiro Sato (SU). Improving plant growth under drought conditions through biochar and silicon applications. ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Fukuoka Convention Center. September 3-5, 2024.
57*	Mekuanint Lewoyehu (SU), Shinjiro Sato (SU). Effects of water hyacinth biochar on soil resistance to acidification stress and nutrient dynamics in an acidic nitisol in northwest highland of Ethiopia. ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Fukuoka Convention Center. September 3-5, 2024.
58*	Yuka Masubuchi (SU), Shinjiro Sato (SU). 炭酸カルシウムを利用したリン酸の形態とリン肥料としての利用可能性 (Forms of phosphate recovered using calcium carbonate and their potential as phosphorus fertilizers). ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Fukuoka Convention Center. September 3-5, 2024.
59*	Kaname Furuhashi (SU), Shinjiro Sato (SU). ホテイアオイ由来のバイオ炭コンポストの最適化と質評価 (Optimization and quality assessment of water hyacinth-derived biochar compost). ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Fukuoka Convention Center. September 3-5, 2024.
60*	Desalew Fentie (SU), Shinjiro Sato (SU). The impacts of combined application of water hyacinth biochar and inorganic fertilizer on soil physicochemical properties and wheat yield under deficit irrigation in acidic silty loam soil in northwest highland of Ethiopia. ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Fukuoka Convention Center. September 3-5, 2024.
61*	Yuka Takeshita (SU), Shinjiro Sato (SU). Mg/Al-LDHで修飾したホテイアオイ由来バイオ炭のリン酸吸着性能の評価 (Assessment of phosphate adsorption capacity of Mg/Al-LDH-modified biochar derived from water hyacinth). ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Fukuoka Convention Center. September 3-5, 2024.
62*	Yudai Kohira (SU), Shinjiro Sato (SU). バイオ炭の土壌施用における新規窒素硝化モデルの構築と窒素保持能の機構解明 (Development of a novel nitrogen nitrification model and elucidation of nitrogen retention mechanisms in soil amended with biochar). ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Fukuoka Convention Center. September 3-5, 2024.
63*	Yu Yan Andrew Tay (SU), Shinjiro Sato (SU). Evaluating the slow releasing performance of urea-encapsulated hydrogel with amendment of biochar from water hyacinth. ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Fukuoka Convention Center. September 3-5, 2024.
64*	Mekuanint Lewoyehu (SU), Shinjiro Sato (SU). Enhancing soil resistance to acidification stress and nutrient dynamics using water hyacinth biochar. ―The 22nd Research Conference of the Japan Carbonization Research Society, Tohoku University. September 19-21, 2024.
65*	Yuka Masubuchi (SU), Shinjiro Sato (SU). 生物的廃棄物由来バイオ炭への化学処理によるリン酸の形態変化 (Morphological changes in phosphate species in biowaste-derived biochar via chemical treatment). ―The 22nd Research Conference of the Japan Carbonization Research Society, Tohoku University. September 19-21, 2024.
66*	Kaname Furuhashi (SU), Shinjiro Sato (SU). ホテイアオイ由来のバイオ炭コンポストの最適化と質の評価 (Optimization and quality assessment of water hyacinth-derived biochar compost). ―The 22nd Research Conference of the Japan Carbonization Research Society, Tohoku University. September 19-21, 2024.
67*	Mayumi Nakanowatari (SU), Shinjiro Sato (SU). 金属担持したホテイアオイ炭団の窒素酸化物抑制効果 (Suppression effect of metal-loaded water hyacinth biochar briquettes on nitrogen oxides). ―The 22nd Research Conference of the Japan Carbonization Research Society, Tohoku University. September 19-21, 2024.
68*	Yuka Takeshita (SU), Shinjiro Sato (SU). 金属修飾したホテイアオイ由来バイオ炭のリン酸吸着性能の評価 (Evaluation of phosphate adsorption performance of metal-modified water hyacinth-derived biochar). ―The 22nd Research Conference of the Japan Carbonization Research Society, Tohoku University. September 19-21, 2024.
69*	Yudai Kohira (SU), Shinjiro Sato (SU). 無機または有機窒素肥料とバイオ炭の土壌共施用における窒素硝化数理モデルの構築と動態予測 (Development and dynamics prediction of a mathematical nitrogen nitrification model for soil co-application of biochar with inorganic or organic nitrogen fertilizers). ―The 22nd Research Conference of the Japan Carbonization Research Society, Tohoku University. September 19-21, 2024.
70*	Tassapak Wutisirirattanachai (SU), Shinjiro Sato (SU). 高含水率有機廃棄物の水熱炭化による固体燃料および液体肥料特性への影響 (Effects of hydrothermal carbonization of high-moisture organic waste on solid fuel and liquid fertilizer properties). ―The 22nd Research Conference of the Japan Carbonization Research Society, Tohoku University. September 19-21, 2024.
71*	Andrew Tay Yu Yan (SU), Shinjiro Sato (SU). Preparation and properties of slow releasing urea-encapsulated hydrogel with water hyacinth biochar. ―The 22nd Research Conference of the Japan Carbonization Research Society, Tohoku University. September 19-21, 2024.
72*	Shuhei Ban (USP), Shinjiro Sato (SU), Kanako Ishikawa (LBERI). 趣旨説明－過剰繁茂する水草の処理・管理・利活用を通した湖沼生態系の持続的保全 (Introductory Remarks: Sustainable Conservation of Lake Ecosystems through the Management, Processing, and Utilization of Overgrown Aquatic Plants). ―The 88th Conference of the Japanese Society of Limnology, Kumamoto University. October 18-20, 2024.
73*	Shinjiro Sato (SU), Shuhei Ban (USP), Shin-ichi Akizuki (SU), Solomon Addisu (BDU). ホテイアオイ由来バイオ炭の燃料、土壌改良および作物栽培利用 (Utilization of water hyacinth-derived biochar for fuel, soil amendment, and crop cultivation). ―The 88th Conference of the Japanese Society of Limnology, Kumamoto University. October 18-20, 2024.
74*	Kanako Ishikawa (LBERI), Ji Cai (LBERI), Chunmeng Jiao (LBERI), Yoichiro Sakai (LBERI), Mulatie Mekonnen (BDU), Hibre Mengist (BDU), Solomon Addisu (BDU), Hiroki Imamura (SU), Diego Alberto (SU), Victor S. Kuwahara (SU), Getachew Bayable (SU), Robel Milashu (SU), Shinjiro Sato (SU), Ayalew Wondie (LTaOWPDA). エチオピア・タナ湖のホテイアオイ管理システムの構築 (Development of a water hyacinth management system for Lake Tana, Ethiopia). ―The 88th Conference of the Japanese Society of Limnology, Kumamoto University. October 18-20, 2024.
75*	Shin-ichi Akizuki (SU), Pranshu Bhatia (SU), Masaaki Fujiwara (SU), Nigus Gabbiye Habtu (BDU), Shinjiro Sato (SU), Tatsuki Toda (SU). メタン発酵を介したホテイアオイ搾汁液からのエネルギー・栄養塩回収技術の開発 (Development of energy and nutrient recovery technologies from water hyacinth juice via methane fermentation). ―The 88th Conference of the Japanese Society of Limnology, Kumamoto University. October 18-20, 2024.
76*	Most Fahima Ahmed Anny (Jahangirnagar University), Taiabur Rahman Tuhin (USP), Xin Liu (Guangxi Academy of Sciences), Ayirkm Adugna (SU), Mutsumi Sekine (SU), Shin-ichi Akizuki (SU), Tatsuki Toda (SU), Shuhei Ban (USP). Cost-effective cultivation of Ethiopian native strains of Limnospira fusiformis using anaerobic digestion effluent of water hyacinth. ―The 88th Conference of the Japanese Society of Limnology, Kumamoto University. October 18-20, 2024.
77*	Amare Mezgebu (USP), Xin Liu (Guangxi Academy of Sciences), Minwyelet Mingist (BDU), Ayirkm Adugna (SU), Tatsuki Toda (SU), Shuhei Ban (USP). Evaluating food quality of the new Liminospira fusiformis strains from Ethiopia for culturing crustacean zooplankton. ―The 88th Conference of the Japanese Society of Limnology, Kumamoto University. October 18-20, 2024.
78*	Pranshu Bhatia (SU), Shin-ichi Akizuki (SU), Kanako Kimura (SU), Shinjiro Sato (SU), Tatsuki Toda (SU). Accelerating UASB reactor efficiency: Strategies for rapid granulation and cost reduction. ―The 88th Conference of the Japanese Society of Limnology, Kumamoto University. October 18-20, 2024.
79*	Hiroki Imamura (SU), Tadele Melese Lebeza (SU), Getachew Bayable (IU), Victor S. Kuwahara (SU), Kanako Ishikawa (LEBRI). 人工衛星とドローンによるタナ湖におけるホテイアオイの画像認識に関する研究 (A study on image recognition of water hyacinth in Lake Tana using satellite and drone data). ―The 88th Conference of the Japanese Society of Limnology, Kumamoto University. October 18-20, 2024.
80*	Daiki Maruyama (SU), Shin-ichi Akizuki (SU), Masaaki Fujiwara (SU), Shinjiro Sato (SU), Tatsuki Toda (SU), Kiyohiko Nakasaki (SU). ホテイアオイ搾汁液のメタン発酵処理におけるバイオ炭の物理化学的特性の影響 (Effects of biochar physicochemical properties on methane fermentation of water hyacinth juice). ―The 59th Annual Conference of Japan Society on Water Environment, Hokkaido University. March 17-19, 2025.
81*	Eshihu Bright (SU), Shinjiro Sato (SU). Bioremediation Effects of Biochar-Compost Derived from Water Hyacinth in Kerosene Contaminated Soil. ―The 23rd Research Conference of the Japan Carbonization Research Society, Wakayama-jo Hall. September 11-12, 2025.
82*	Yudai Kohira (SU), Shinjiro Sato (SU). 無機・有機窒素源と異なる熱分解温度バイオ炭の共施用による窒素損失への影響 (Effects of co-applying inorganic or organic nitrogen sources with biochars pyrolyzed at different temperatures on nitrogen losses). ―The 23rd Research Conference of the Japan Carbonization Research Society, Wakayama-jo Hall. September 11-12, 2025.
83*	Thanchanok Duenchai (SU), Shinjiro Sato (SU). Amelioration of Soil Salinity with Biochar for Sodium Leaching Saline Soil. ―The 23rd Research Conference of the Japan Carbonization Research Society, Wakayama-jo Hall. September 11-12, 2025.
84*	Yuka Takeshita (SU), Shinjiro Sato (SU). バイオ炭ペレットの肥料と炭素貯留効果の評価 (Evaluation of fertilizer and carbon sequestration effects of biochar pellets). ―The 23rd Research Conference of the Japan Carbonization Research Society, Wakayama-jo Hall. September 11-12, 2025.
85*	Kaname Furuhashi (SU), Shinjiro Sato (SU). バイオ炭コンポストの共堆肥化の最適化と環境負荷への影響評価 (Optimization of biochar co-composting and assessment of its environmental impacts). ―The 23rd Research Conference of the Japan Carbonization Research Society, Wakayama-jo Hall. September 11-12, 2025.
86*	Wutisirirattanachai Tassapak (SU), Shinjiro Sato (SU). 高含水率・高窒素バイオマスの混合水熱炭化液相の土壌施用後の窒素動態および環境影響負荷 (Environmental impact and nitrogen dynamics after soil application of the liquid phase from co-hydrothermal carbonization of high-moisture, high-nitrogen biomass). ―The 23rd Research Conference of the Japan Carbonization Research Society, Wakayama-jo Hall. September 11-12, 2025.
87*	Wutisirirattanachai Tassapak (SU), Shinjiro Sato (SU). 高含水率バイオマスの混合水熱炭化処理による液相の栄養塩評価 (Nutrient evaluation of the liquid phase from co-hydrothermal carbonization of high-moisture biomass). ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Niigata University. September 17-19, 2025.
88*	Yuka Takeshita (SU), Shinjiro Sato (SU). バイオ炭ペレットの炭素貯留効果と肥料効果の評価 (Evaluation of carbon sequestration and fertilizer effects of biochar pellets). ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Niigata University. September 17-19, 2025.
89*	Kaname Furuhashi (SU), Shinjiro Sato (SU). バイオ炭コンポストの共堆肥化における最適化と植物肥料および環境負荷への影響評価 (Optimization of biochar co-composting and evaluation of its effects on plant fertilization and environmental footprints). ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Niigata University. September 17-19, 2025.
90*	Yudai Kohira (SU), Shinjiro Sato (SU). 無機または有機肥料とバイオ炭の土壌共施用における窒素損失への影響 (Effects of co-applying inorganic or organic fertilizers with biochar to soil on nitrogen losses). ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Niigata University. September 17-19, 2025.
91*	Thanchanok Duenchai (SU), Shinjiro Sato (SU). Amelioration of Soil Salinity with Biochar for Sodium Leaching Saline Soil. ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Niigata University. September 17-19, 2025.
92*	Mekuanint Lewoyehu (SU), Shinjiro Sato (SU). Effects of Water Hyacinth Biochar Integration with Organic and Artificial Fertilizers on Alleviation of Soil Acidity and Nutrient Leaching to Enhance Plant Growth. ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Niigata University. September 17-19, 2025.
93*	Akira Hisajima (SU), Wakako Samejima (SU), Hiroko Tobari (IDEA Consultants, Inc.), 谷本祐一 (IDEA Consultants, Inc.), Shinjiro Sato (SU). Effects of Water Hyacinth Biochar Integration with Organic and Artificial Fertilizers on Alleviation of Soil Acidity and Nutrient Leaching to Enhance Plant Growth. ―The Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition, Niigata University. September 17-19, 2025.
94	Yuka Takeshita (SU), Shinjiro Sato (SU). Evaluation of Fertilizer and Carbon Sequestration Effects of Biochar Pellets. ―SATREPS-EARTH Project Symposium, Soka University (Tokyo). September 27, 2025.
95	Akira Hisajima (SU), Shinjiro Sato (SU). Evaluation of the adsorptive removal capacity if Alternanthera philoxeroides biochar. ―SATREPS-EARTH Project Symposium, Soka University (Tokyo). September 27, 2025.
96	Thanchanok Duenchai (SU), Shinjiro Sato (SU). Amelioration of Soil Salinity with Biochar for Sodium Leaching and Plant Production in Saline Soil. ―SATREPS-EARTH Project Symposium, Soka University (Tokyo). September 27, 2025.
97	Tassapak Wutisirirattanachai (SU), Shinjiro Sato (SU). Hydrothermal Carbonization for Binder-Free Briquettes: Turning Water Hyacinth and Wastes into Solid Fuel. ―SATREPS-EARTH Project Symposium, Soka University (Tokyo). September 27, 2025.
98	Minale Wondwosson Kibrie (SU), Shinjiro Sato (SU). Optimization of Composts of Organic Wastes Using Water Hyacinth Biochar for Soil Amendment and Plant Growth. ―SATREPS-EARTH Project Symposium, Soka University (Tokyo). September 27, 2025.
99	Eshihu Bright (SU), Shinjiro Sato (SU). Bioremediation effects of biochar-compost derived from water hyacinth in kerosene contaminated soil. ―SATREPS-EARTH Project Symposium, Soka University (Tokyo). September 27, 2025.
100	Kaname Furuhashi (SU), Shinjiro Sato (SU). Optimization and quality of biochar co-composting and assessment of environmental impacts. ―SATREPS-EARTH Project Symposium, Soka University (Tokyo). September 27, 2025.
101	Yudai Kohira (SU), Shinjiro Sato (SU). Ammonium and Nitrate Adsorption Mechanisms of Water Hyacinth Biochar across Different Pyrolysis Temperatures. ―SATREPS-EARTH Project Symposium, Soka University (Tokyo). September 27, 2025.
102	Robel M. Ashenafi (SU), Getachew B. Tiruneh (SU), Ji Cai (LBERI), Chunmeng Jiao (LBERI), Kanako Ishikawa (LBERI), Solomon Addisu (BDU), Shinjiro Sato (SU), Victor S. Kuwahara (SU). Monitoring Water Quality Parameters and Water Hyacinth Expansion in Lake Tana, Ethiopia. ―SATREPS-EARTH Project Symposium, Soka University (Tokyo). September 27, 2025.
103	Ji Cai (LBERI), Kanako Ishikawa (LBERI), Yoichiro Sakai (LBERI), Nao Matsuda (Lake Biwa Conservation and Restoration Division, Shiga Prefecture), Shin-ichi Nakano (Center for Ecological Research, Kyoto University). ドローンとGIS技術を活用した西の湖におけるアオコ発生範囲の評価 (Assessment of cyanobacterial bloom distribution in Lake Nishinoko using drone and GIS technologies). ―The 89th Conference of the Japanese Society of Limnology in Sapporo, Clark Memorial Student Center. September 2025.
104*	Pranshu Bhatia (SU), Shin-ichi Akizuki (SU), Shinjiro Sato (SU), Tatsuki Toda (SU). Harnessing room-temperature anaerobic digestion and biochar-amended wetlands for sustainable sludge and effluent management. ―The 19th IWA Conference on Sludge Management, Kyoto. October 21-24, 2025.

1	Yudai Kohira, Shinjiro Sato. Best Oral Presentation Award for Young Researchers. 異なる金属処理したコーヒー粕由来の機能性バイオ炭によるアンモニウムとリン酸の吸脱着性能 (Ammonium and phosphate adsorption and desorption performance of functional biochar derived from spent coffee grounds treated with different metals). ―The 2021 Annual Meeting of the Japanese Society of Soil Science and Plant Nutrition. September 16, 2021.
2	Akinori Fujita, Masatoshi Kishi, Mutsumi Sekine, and Tatsuki Toda. Best Oral Presentation Award. Treatment of anaerobic digestion effluent by slow sand filtration combined with activated sludge process and activated carbon filtration. ―The 5th International Postgraduate Conference on Biotechnology (IPCB2021). December 10, 2021.
3	Yudai Kohira, Shinjiro Sato. Outstanding Presentation Award (Encouragement Category). ホテイアオイ由来機能性バイオ炭によるアンモニウム態窒素吸着性能評価と吸着機構比較 (Evaluation of ammonium nitrogen adsorption performance and comparison of adsorption mechanisms by functional biochar derived from water hyacinth). ―The 20th Research Conference of the Japan Carbonization Research Society. September 16, 2022.
4	Yudai Kohira, Shinjiro Sato. Dean's Award for the Best Master's Thesis. Reduction of Nitrogen Loss from Anaerobic Digestion Effluent Applied to Soil Using Modified Biochars Derived from Water Hyacinth. ―Graduate School of Science and Engineering, Soka University. March 18, 2023.
5	Andrew Tay Yu Yan, Shinjiro Sato. Outstanding Presentation Award (Encouragement Category). Ammonium adsorption capacity of biochar-clay composites using water hyacinth as feedstock. ―The 21st Research Conference of the Japan Carbonization Research Society. September 8, 2023.
6	Ryota Daniel Kamiuchi, Shinjiro Sato. Outstanding Presentation Award (Encouragement Category). Improving resistance and resilience of soils to hydrological stresses through biochar application. ―The 21st Research Conference of the Japan Carbonization Research Society. September 8, 2023.
7	Ji Cai. 2023 International Exchange Encouragement Award of the Japanese Society of Limnology. Saving Lake Tana from Water hyacinth Infestation: Understanding the Population Dynamics for Sustainable Management Strategies. ―The Japanese Society of Limnology. October 14, 2023.
8	Pranshu Bhatia, Anas Hijazi, Shinichi Akizuki, Nigus Gabbiye Habtu, Shinjiro Sato, Tatsuki Toda. Best paper award (Track 5). Effect of spontaneous sedimentation on the chemical composition of compressed water hyacinth juice as a pretreatment for anaerobic digestion: Comparison of different growing areas. ―11th EAI International Conference on Advancements of Science and Technology (EAI-ICAST). November 25, 2023.
9	Tazebewa, E, S. Addisu, E. Bekele, A. Alemu, B. Belay, S. Sato. Best Presentation Award. Sustainable soil health and agricultural productivity with biochar based indigenous organic fertilizers in acidic soils: insights from northwestern highlands of Ethiopia. ―Bahir Dar University. February 13, 2024.
10	Daiki Maruyama, Shinjiro Sato. Dean's Award for the Best Master's Thesis. ホテイアオイ搾汁液の高負荷メタン発酵処理におけるバイオ炭の添加と熱分解温度の影響 (Effects of biochar addition and its pyrolysis temperature on the high-load anaerobic digestion of water hyacinth juice). ―Graduate School of Science and Engineering, Soka University. March 18, 2024.
11	Pranshu Bhatia, Shin-ichi Akizuki, Tatsuki Toda, Shinjiro Sato. Best Presentation Award. Temperature optimization in anaerobic digestion of water hyacinth juice: fed-batch and high-rate continuous UASB studies. ―Water and Environment Technology Conference (WET2024). July 21, 2024.
12	Shinjiro Sato. The Japanese Carbonization Research Society Award. バイオ炭の農業利用に関する系統的研究 (Systematic Research on the Agricultural Use of Biochar). ―The Japan Carbonization Research Society. September 19, 2024.
13	Yuka Takeshita, Shinjiro Sato. Outstanding Presentation Award (Encouragement Category). 金属修飾したホテイアオイ由来バイオ炭のリン酸吸着性能の評価 (Evaluation of phosphate adsorption performance of metal-modified water hyacinth-derived biochar). ―The Japan Carbonization Research Society. September 20, 2024.
14	Yuka Masubuchi, Shinjiro Sato. Best Poster Presentation Award. Phosphorus species transformation in biochar pyrolyzed with calcium carbonate and its potential use as phosphorus fertilizer. ―The 2nd International Conference on Biochar Research and Application & The 7th Asia Pacific Biochar Conference. September 22, 2024.
15	Tassapak Wutisirirattanachai, Shinjiro Sato. 3rd Place in Oral Presentation in Biochar: Agronomic and Environmental Uses Community. Hydrothermal carbonization of water hyacinth and sludge mixtures: addressing biofuel and fertilizer challenges. ―ASA-CSSA-SSSA International Annual Meeting. November 13, 2024.
16	Desalew Fentie, Fekremariam Asargew Mihretie, Yudai Kohira, Solomon Addisu Legesse, Mekuanint Lewoyehu, Tassapak Wutisirirattanachai, Shinjiro Sato. Certificate of Publication: Editor's Choice Article. Optimizing Cropping Systems Using Biochar for Wheat Production Across Contrasting Seasons in Ethiopian Highland Agroecology. ―Agronomy. August 1, 2025.
17	Tassapak Wutisirirattanachai, Shinjiro Sato. Outstanding Presentation Award (Encouragement Category). 高含水率・高窒素バイオマスの混合水熱炭化液相の土壌施用後の窒素動態および環境影響評価 (Environmental impact and nitrogen dynamics after soil application of the liquid phase from co-hydrothermal carbonization of high-moisture, high-nitrogen biomass). ―The Japan Carbonization Research Society. September 12, 2025.
18	Tassapak Wutisirirattanachai, Shinjiro Sato. 1st Place in Poster Presentation in Biochar: Agronomic and Environmental Uses Community. Optimization and Environmental Evaluation of Solid Fuel and Liquid Fertilizer Produced Via Co-Hydrothermal Carbonization of High-Moisture Biomass. ―CANVAS 2025. November 12, 2025.
19	Yuka Takeshita, Shinjiro Sato. 2nd Place in Oral Presentation in Biochar: Agronomic and Environmental Uses Community. Evaluation of Fertilizer and Carbon Sequestration Effect of Biochar Pellets. ―CANVAS 2025. November 12, 2025.
20	Ashenafei Gezahegn, Yihenew G. Selassie, Getachew Agegnehu, Solomon Addisu, Fekremariam Asargew Mihretie, Yudai Kohira, Mekuanint Lewoyehu, Shinjiro Sato. Top cited article. The impact of water hyacinth biochar on maize growth and soil properties: The influence of pyrolysis temperature. ―Wiley. April 2026.

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