主な研究業績　　　　（Selected Publications）

2026

Maruyama, D.O., Akizuki, S., Sato, S., Toda, T., Nakasaki, K. (2026). A new interpretation of anaerobic digestion enhancement by biochar addition revealed through microbial analyses. Biomass and Bioenergy, 215, 109614.

https://doi.org/10.1016/j.biombioe.2026.109614

2025

Akizuki, S., Cuevas-Rodríguez, G. (2025). Microalgae assisted coupled nitrification-denitrification in a sponge-based trickling photobioreactor during anaerobic digestate treatment. Chemical Engineering Journal, 520, 165712. https://doi.org/10.1016/j.cej.2025.165712

Akizuki, S., Ida, J. (2025). Impact of simulated microgravity on the activity of nitrifying sludge under dissolved oxygen-limited conditions. Microgravity Science and Technology, 37, 41.  https://doi.org/10.1007/s12217-025-10189-1

Bhatia, P., Fujiwara, M., Akizuki, S., Maruyama, D., Habtu, N. G., Sato, S., Toda, T. (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, 72, 107339. https://doi.org/10.1016/j.jwpe.2025.107339

2024

Kohira, Y., Akizuki, S., Mihretie, F.A., Meselu, D.F., Legesse, S.A., Sato, S. (2024). Enhancement of alkali- and oxidation-modified biochars derived from water hyacinth for ammonium adsorption capacity. Soil Science and Plant Nutrition, 69, 21–33. https://doi.org/10.1080/00380768.2023.2272626

2023

Nishi, K., Akizuki, S., Toda, T., Matsuyama, T., Ida, J. (2023). Effects of different biomass ratios of light-tolerant microalgae-nitrifying bacteria consortia on ammonia removal. Biochemical Engineering Journal, 193, 108872. https://doi.org/10.1016/j.bej.2023.108872

Akizuki, S., Suzuki, H., Fujiwara, M., Toda, T. (2023). Impacts of steam explosion pretreatment on semi-continuous anaerobic digestion of lignin-rich submerged macrophyte. Journal of Cleaner Production, 380, 135377. https://doi.org/10.1016/j.jclepro.2022.135377

2022

Salangsang, M.C.D., Sekine, M., Akizuki, S., Sakai, H.D., Kurosawa, N., Toda, T. (2022). Effect of carbon to nitrogen ratio of food waste and short resting period on microbial accumulation during anaerobic digestion. Biomass and Bioenergy, 166, 106481. https://doi.org/10.1016/j.biombioe.2022.106481

Nishi, K., Akizuki, S., Toda, T., Matsuyama, T., Ida, J. (2022). Advanced light-tolerant microalgae-nitrifying bacteria consortia for stable ammonia removal under strong light irradiation using light-shielding hydrogel. Chemosphere, 297, 134252. https://doi.org/10.1016/j.chemosphere.2022.134252

Mata-De-la-Vega, J.F., Akizuki, S., Sakai, H.D., Cuevas-Rodríguez, G. (2022). Slaughterhouse wastewater treatment using purple phototrophic bacteria: A comparison between photoheterotrophic and chemoheterotrophic conditions. Biochemical Engineering Journal, 179, 108273. https://doi.org/10.1016/j.bej.2021.108273

2021

Akizuki, S., Cuevas-Rodríguez, G., Toda, T. (2021). Nitrification of anaerobic digestate using a consortium of microalgae and nitrifiers in an open photobioreactor with moving bed carriers. Chemosphere, 263, 127948. https://doi.org/10.1016/j.chemosphere.2020.127948

2020

Akizuki, S., Kishi, M., Cuevas-Rodríguez, G., Toda, T. (2020). Effects of different light conditions on ammonium removal in a consortium of microalgae and partial nitrifying granules. Water Research, 171, 115445. https://doi.org/10.1016/j.watres.2019.115445

Nishi, K., Akizuki, S., Toda, T., Matsuyama, T., Ida, J. (2020). Development of light-shielding hydrogel for nitrifying bacteria to prevent photoinhibition under strong light irradiation. Process Biochemistry, 94, 359–364. https://doi.org/10.1016/j.procbio.2020.04.037

2019

Akizuki, S., Cuevas-Rodríguez, G., Toda, T. (2019). Microalgal-nitrifying bacterial consortium for energy-saving ammonia removal from anaerobic digestate of slaughterhouse wastewater. Journal of Water Process Engineering, 31, 100753. https://doi.org/10.1016/j.jwpe.2019.01.014

2018

Akizuki, S., Toda, T. (2018). An anaerobic-aerobic sequential batch process with simultaneous methanogenesis and short-cut denitrification for the treatment of marine biofoulings. Waste Management, 74, 168–176. https://doi.org/10.1016/j.wasman.2017.12.013

2025

中﨑 清彦・秋月 真一. 「第2部 グリーンテクノロジーを支える要素技術～地域循環共生圏の構築に向けて～」第1章「廃棄物処理技術」戸田 龍樹・井田 旬一・佐藤 伸二郎（編）『地球を救うグリーンテクノロジー』, 第三文明社, 2025年. ISBN 978-4-476-03434-9. 

秋月 真一. 第5章「地球から宇宙へ」戸田 龍樹・井田 旬一・佐藤 伸二郎（編）『地球を救うグリーンテクノロジー』 , 第三文明社, 2025年. ISBN 978-4-476-03434-9. 

2022

Bhatia, P., Akizuki, S., Kishi, M., Habtu, N.G., Legesse, S.A. (2022). Biomethane from microalgae. In: 3rd Generation Biofuels: Disruptive Technologies to Enable Commercial Production, 463–503. https://doi.org/10.1016/B978-0-323-90971-6.00034-6

2021

Akizuki, S., Sato, S., Legesse, S.A., Cuevas-Rodríguez, G. (2021). Treatment of piggery wastewater with an integrated microalgae-nitrifiers process: current status and prospects. In: Integrated and Hybrid Process Technology for Water and Wastewater Treatment, 595–616. https://doi.org/10.1016/B978-0-12-823031-2.00021-5

2025

小森 絵美, 西 健斗, 秋月 真一, 松山 達, 井田 旬一. 硝化汚泥グラニュールの形成方法. 特開2025-086245. 

2020

井田 旬一, 西 健斗, 秋月 真一, 岸 正敏, 関根 睦実, 松山 達, 戸田 龍樹. 遮光ゲル担体. 特開2020-103179. 

2019

関根 睦実, 秋月 真一, 戸田 龍樹, 岸 正敏. メタン発酵生成物の処理方法. 特開2019-150821. 

• 2026–2027年度：アズビル山武財団 研究開発助成「微細藻類－細菌共存系による下水処理の安定性向上に向けたAI活用」（助成金額：200万円）研究代表者

• 2026年度：八洲環境技術振興財団 研究開発助成「メタン発酵－紅色硫黄細菌共存系によるバイオガス生成・精製一体化プロセスの開発」（助成金額：100万円）研究代表者 

• 2024–2025年度：日本生命財団 環境問題研究助成（若手研究・奨励研究助成）「紅色光合成細菌凝集体による資源循環型高速下水処理法の確立」（助成金額：120万円）研究代表者

• 2021–2023年度：日本学術振興会 科学研究費助成事業（基盤研究B, 課題番号：21H03665）「月レゴリス浸漬－微細藻類・凝集態硝化菌共存系システムによる月面尿処理技術の開発」（直接経費：1320万）研究代表者

• 2020–2024年度：日本学術振興会 科学研究費助成事業（国際共同研究加速基金［国際共同研究強化(B)］, 課題番号：20KK0249）「微細藻類－硝化菌固定化遮光ゲルによる窒素含有排水の低コスト処理：メキシコを例に」（直接経費：1450万円）研究分担者 

• 2018–2020年度：日本学術振興会 海外特別研究員（201860754）「スポンジ担体を用いた微細藻類–硝化–脱窒共生系による高濃度窒素含有廃水の処理」（助成金額 ：約900万）研究代表者