MBR膜污染形成机理及控制蒋波

1101673-1212(2006)01-0110-03X703BENVIRONMENTALSCIENCEANDMANAGEMENT111112ormationMechanismandControlofMBRmembraneFoulingJIANGBo1,WANGLi-ping2,HUASu-lan3,ZHANGChuan-yi4(1.2.3.4SchoolofEnvironmentandSpatialInformatics,CUMT,Xiuzhou221008,China)Abstract:Membranefoulingproblemisanobstaclethataffectingthepopularapplicationofmembranebio-reactor(MBR)technology.ThroughanalyzingtheformationmechanismandmainaffectingfactorsofMBRmembranefouling,thispaperthinkthatthemainfoulingfactorscausemembranepenetratingperformancelowerandtechniqueoperatingcostincreasearemembraneborestopandcoagulatinggumlayerformation.Adoptsometechniquessuchaschoosingmembranemoduleandoperatingconditionsoptimallyimprovingsludgemixedliquid’sbiologicalandchemicalcharacteristicsdeterminingcriticalsludgeconcentrationmembranerinseandsooncanreducemembraneborestopandrepresscoagulatinggumlayerformation,controlmembranefoulingeffectively.Keywords:MBRmembranefoulingcoagulatinggumlayerextra-cellularpolymericsubstance(EPS)