Enhanced co-digestion of sewage sludge and food waste using novel electrochemical anaerobic membrane bioreactor (EC-AnMBR)

作者：Zhen, Guangyin^*; Pan, Yang; Han, Yule; Gao, Yijing; Gadow, Samir Ibrahim; Zhu, Xuefeng; Yang, Liying; Lu, Xueqin

来源：Bioresource Technology, 2023, 377: 128939.

DOI：10.1016/j.biortech.2023.128939

• Anaerobic digestion
• Biogas recovery
• Electrochemical regulation
• Membrane fouling
• Microbial community

Membrane fouling remains a big challenge hindering the wide-application of anaerobic membrane bioreactor (AnMBR) technology. In this study, an electrochemical anaerobic membrane bioreactor (EC-AnMBR) was developed by coupling electrochemical regulation to enhance co-digestion of sewage sludge and food waste and mitigate membrane fouling. The highest methane production (0.12 & PLUSMN; 0.02 L/Lreactor/day) and net energy recovery (31.82 kJ/day) were achieved under the optimum conditions of 0.8 V, hydraulic retention time of 10 days and solids retention time of 50 days. Electrochemical regulation accelerated the mineralization of high