Characteristics of digestate from methane fermentation as fertilizer and its utilization system

Methane fermentation is a technology used to produce biogas, a renewable energy source mostly containing methane, from organic matter such as livestock waste, food waste, and sludge through biological activity in an oxygen-free environment. The obtained biogas can be used as a fossil fuel alternativ...

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Published inJournal of the NARO Research and Development Vol. 2025; no. 20; p. 11
Main Authors YOSHIHARA, Akane, KITAGAWA, Iwao, ORITATE, Fumiko, FUJITA, Mutsumi, NAKAMURA, Masato
Format Journal Article
LanguageJapanese
Published National Agriculture and Food Research Organization 01.03.2025
国立研究開発法人 農業・食品産業技術総合研究機構
Subjects
ammonia volatilization
fertilizer efficiency
material cycle
renewable energy
slurry injector
アンモニア揮散
スラリーインジェクター
再生可能エネルギー
肥効
資源循環
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ISSN2434-9895
2434-9909
DOI10.34503/naroj.2025.20_11

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Summary:Methane fermentation is a technology used to produce biogas, a renewable energy source mostly containing methane, from organic matter such as livestock waste, food waste, and sludge through biological activity in an oxygen-free environment. The obtained biogas can be used as a fossil fuel alternative fuel for generators and boilers to generate electricity and heat, thereby contributing to reducing greenhouse gas (GHG) emissions. Additionally, the digestate can replace chemical fertilizers because they contain components such as nitrogen, phosphorus, and potassium. This paper summarizes the characteristics of digestate as a fertilizer and the current research trends.
ISSN:2434-9895
2434-9909
DOI:10.34503/naroj.2025.20_11