Microbial electrolysis enhanced bioconversion of coal to methane compared with anaerobic digestion: Insights into differences in metabolic pathways

Weizhong Zhao,Xianbo Su,Yifeng Zhang,Daping Xia,Shihui Hou,Yixuan Zhou,Haijiao Fu,Lufei Wang,Xiangju Yin

Energy Conversion and Management（2022）

Cited 22|Views6

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Abstract

•Methanogenic efficiency of coal could be improved upon electrostimulation.•Applied voltage facilitated the hydrolysis efficiency of coal.•Geobacter.sp and Methanosarcina.sp were enriched in the anodic biofilm.•Genes related to extracellular electron transport and biofilm formation increased.•The functional genes in methanogenesis pathway were significantly upregulated.

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Key words

Biomethanation,Microbial electrolysis cell,Direct interspecies electron transfer,Metabolic pathways,Carbon dioxide reduction

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