MBR、MCR处理微污染水的膜污染比较  

Comparison of Membrane Fouling Between Membrane Bio-reactor (MBR) and Membrane Coagulation Reactor (MCR) for Micro-polluted Raw Water Treatment

作　　者：郝爱玲[1] 张光辉[1] 张颖[1] 顾平[1] 

机构地区：[1]天津大学环境科学与工程学院,天津300072

出　　处：《中国给水排水》2004年第7期49-53,共5页China Water & Wastewater

基　　金：天津市科委重点科技攻关计划项目(013105211)

摘　　要：　膜污染是影响膜反应器稳定运行的重要原因之一,为此考察了膜生物反应器(MBR)和膜混凝反应器(MCR)处理微污染地表水时的运行状况,并对膜比通量的变化进行了比较,发现MBR的膜污染情况比MCR的严重。MCR和MBR的膜组件经物理、化学清洗后膜比通量分别恢复至新膜比通量的99.7%和76.9%,物理清洗对此的贡献较大。经分析发现,MCR中无机污染占优势,主要污染元素是Fe;MBR中微生物和有机物是膜污染的主要组成,而无机污染物则主要是铁盐和磷酸盐。Operation of MBR and MCR for micro-polluted surface water treatment was investigated,and it was found by comparing the variation of membrane specific flux (SF) that membrane fouling of MBR is more serious than that of MCR.After physical and chemical cleaning of membrane,the membrane specific flux for MCR and MBR is recovered respectively to 99.7% and 76.9% of pure water specific flux,and physical cleaning makes more contribution to it.Analysis shows that element iron is the dominant foulant in MCR.While in MBR the composition of foulants comes mainly from microorganism and organic matters,and iron salts and phosphate are the main inorganic foulants.

关 键 词：微污染原水 MBR MCR 膜比通量 膜污染 

分 类 号：TU991.2[建筑科学—市政工程]