Enhanced anaerobic digestion of kitchen waste at different solids content by alkali pretreatment and bentonite addition: Methane production enhancement and microbial mechanism

Yuying Hu,Susu Liu,Xiaofan Wang,Shihao Zhang,Tengfang Hu,Xin Wang,Chuqiao Wang,Jing Wu,Li Xu,Gaoping Xu,Fengping Hu

Bioresource Technology（2022）

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摘要

•Alkali pretreatment/bentonite addition for kitchen waste AD were explored firstly.•AP/Be treatment could enhance the methane yield by 236%.•AP/Be treatment could enrich bacterial microbial diversity.•Hydrogenotrophic methanogenesis Methanobacterium was promoted by AP/Be treatment.•Methanogenic pathways shifted as TS increased.

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关键词

Kitchen waste,Anaerobic digestion,Alkali pretreatment,Bentonite,Microbial community

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