微生物电解池耦合厌氧消化促进产甲烷研究进展

Research Progress of Microbial Electrolysis Cell Coupled with Anaerobic Digestion to Promote Methane Production

微生物电解池(MEC)利用微生物催化,在外加电压作用下产生甲烷,耦合厌氧消化可促进甲烷的产生。概述了微生物电解池耦合厌氧消化系统(MEC-AD)的作用机理,分析了外加电压、电极材料、温度和预处理等因素对MEC-AD产甲烷效能的影响,阐述了MEC-AD系统中主要产甲烷微生物群落分布情况,并总结分析了MEC-AD系统对餐厨垃圾、工业废水等厌氧处理促进产甲烷的应用效果。同时,认为MEC-AD产甲烷系统中电极材料的构型和经济性、底物预处理和实际应用的成本还需要进一步研究,为系统的工程化应用提供理论基础。

This paper discusses the mechanism of microbial electrolysis cell coupled with anaerobic digestion(MEC-AD)system,which utilize microbial catalysis to generate methane under applied voltage.It analyzes the factors influencing methane production efficiency in MEC-AD,including applied voltage,electrode material,temperature,and pretreatment.The distribution of the main methanogenic microbial communities in MEC-AD system was analyzed,and the application effect of the MEC-AD system on anaerobic treatment of food waste and industrial wastewater to promote methane production was summarized.It concluded that further research is needed on electrode material configuration and cost-effectiveness.substrate pretreatment and actual application cost to provide a solid theoretical foundation for the engineering application of the system.