金属离子对膜生物反应器混合液可滤性影响研究进展  

Research progress in metal ions on filterability of mixed liquor in membrane bioreactor

作　　者：张海丰[1,2] 杨震[1] 张冲[1] 杨超[1] 苗宇[1] 张兰河[1] 

机构地区：[1]东北电力大学化工学院,吉林吉林132012 [2]哈尔滨工业大学市政环境工程学院城市水资源开发利用(北方)国家工程研究中心,黑龙江哈尔滨150090

出　　处：《化工进展》2010年第11期2171-2176,共6页Chemical Industry and Engineering Progress

基　　金：东北电力大学博士科研启动基金资助项目(BSJXM-200903)

摘　　要：膜生物反应器(MBR)作为一种高效的污水处理及回用工艺,近年来备受关注,然而MBR的膜污染问题严重制约了该工艺进一步快速的商业化推广。本文综述了金属离子对MBR污泥混合液可滤性的作用,并探讨了混合液中胞外聚合物(EPS)和溶解性微生物代谢产物(SMP)对膜污染影响。为说明高价金属离子对混合液可滤性的调控作用,文中通过DLVO、DCB及箱蛋理论深入探讨了金属离子对生物絮凝影响的机理。最后,对该领域未来的研究方向进行了论述。Membrane bioreactor（MBR）has received great attention in wastewater treatment and reclamation.Membrane fouling is a major obstacle that hinders faster commercialization of MBR.This review summarizes the influence of metal ions on the filterability of mixed sludge in MBR and extracellular polymeric substances（EPS）and soluble microbial products（SMP）on membrane fouling.In order to provide more detailed information between metal ions and the filterability of mixed sludge in MBR,the mechanism of metal ions in bio-flocculation is described according to DLVO theory,the alginate theory and the divalent cation bridging（DCB）theory.Prospects for the future trends in filterability study of mixed liquor are discussed.

关 键 词：膜生物反应器 金属离子 胞外聚合物 生物絮凝 

分 类 号：X703.3[环境科学与工程—环境工程]