活性污泥中电活性微生物的富集筛选研究进展

Advances of enrichment and screening of electroactive microorganisms from activated sludge

摘要:

活性污泥含有多种微生物，是废水处理系统中污染物降解转化的重要驱动者。电活性微生物(Electroactive microorganisms，EAMs)是活性污泥的重要微生物类群，在废水资源化与能源化中发挥着核心关键作用。本文概括了活性污泥中EAMs的富集和筛选方法，整理总结了目前已从活性污泥中获得的EAMs菌种资源信息，在此基础上分析了从活性污泥中富集和筛选EAMs所存在的问题，并进一步展望了未来的研究方向，以期加速EAMs菌种资源的挖掘，促进以EAMs为主导的废水资源化与能源化技术发展。

关键词:电活性微生物，活性污泥，富集，筛选，废水资源化与能源化

Abstract:

Activated sludge contains a variety of microorganisms and is the key driver for pollutant degradation and transformation in wastewater treatment plants. Electroactive microorganisms (EAMs) is the important component of activated sludge and plays important roles in wastewater recycling and energy recovery. This review summarizes the methods for enrichment and screening of EAMs from activated sludge, and sums up the species of EAMs obtained from activated sludge so far. In addition, the existing problems of enrichment and screening for EAMs as well as the future research direction are also discussed, so as to promote the discovery of EAMs and the development of wastewater recycling and energy recovery technologies in which EAMs play the leading roles.

Key words:Electroactive microorganisms, Activated sludge, Enrichment, Screening, Wastewater recycling and energy recovery