MBR 中微生物代谢产物对膜污染的影响及其调控方法的研究进展

摘要

膜生物反应器(Membrane bio-reactor,MBR)作为一种高效实用的新型污水处理与回用技术,近年来得到了广泛的理论研究与工程应用,而膜污染问题一直是限制MBR发展和应用的一个瓶颈。分析了微生物代谢产物对膜污染的影响,并从调控微生物代谢产物减缓膜污染的方法入手,综述了投加粉末活性炭(PAC)、混凝剂与絮凝剂,以及通入臭氧对污泥混合液的理化性质影响的研究现状。虽然目前的研究取得了一定的进展,但在投加试剂的反应机理、相关性分析等方面仍存在着许多的不足。%The membrane bioreactor (MBR),as an efficient and practical new wastewater treatment and reuse technology,has received extensive theoretical research and engineering applications for years.However,Membrane fouling is a major obstacle that hinders faster commercialization of MBR. The article analysed emphatically the impact of microbial metabolites on membrane fouling,to start from the method of regulating microbial metabolites to mitigating membrane fouling,and summarized studies status on the impact of physical and chemical properties of sludge mixture by addition of pow-dered activated carbon (PAC),coagulants and flocculants.Although the current study has made some progress,many questions on the reaction mechanism and correlation analysis are existed.