Electronic regulation to achieve efficient anaerobic digestion of organic fraction of municipal solid waste(OFMSW):strategies,challenges and potential solutions  

作　　者：Yongdong Chen Hong Wang Parisa Ghofrani-Isfahani Li Gu Xiaoguang Liu Xiaohu Dai 

机构地区：[1]State Key Laboratory of Pollution Control and Resources Reuse,College of Environmental Science and Engineering,Tongji University,Shanghai 200092,China [2]Shanghai Institute of Pollution Control and Ecological Security,Tongji University,Shanghai 200092,China [3]Department of Chemical and Biochemical Engineering,Technical University of Denmark,Kgs Lyngby DK-2800,Denmark [4]College of Environment and Ecology,Chongqing University,Chongqing 400045,China

出　　处：《Frontiers of Environmental Science & Engineering》2024年第4期159-165,共7页环境科学与工程前沿（英文）

基　　金：the financial support for this work provided by the National Natural Science Point Foundation of China(No.52131002);the International Exchange Program for Graduate Students,Tongji University(China)(No.2023020014).

摘　　要：Anaerobic digestion(AD)of organic fraction of municipal solid waste(OFMSW)is prone to system breakdown under high organic loading rates(OLRs)condition,which subsequently reduces the efficiency of digestion process and results in substantial economic losses.In this perspective paper,the substances metabolisms,electrons flow,as well as microbial interaction mechanisms within AD process are comprehensively discussed,and the underlying bottleneck that causes inefficient methane production is identified,which is“electrons surplus”.Systems encountering severe electron surplus are at risk of process failure,making it crucial to proactively prevent this phenomenon through appropriate approaches.On this basis,the present perspective proposes three potential electronic regulation strategies to prevent electrons surplus,namely,electron shunt,accelerating electron transfer and regulating methanogenic metabolism pathway,and presents specific methodologies for each strategy.Furthermore,the potential solutions to challenges that may occur during the electronic regulation process are also presented in this paper.This perspective aims to provide innovative approaches to achieve the efficient and stable operation of OFMSW anaerobic digestion,especially under high OLRs condition.

关 键 词：Anaerobic digestion Electrons surplus Electronic regulation Electrons shunt Electron transfer Methanogenic metabolism pathway 

分 类 号：X705[环境科学与工程—环境工程]