文档介绍：,:1009—315X(2012)05—0437—04悬浮填料控制膜生物反应器膜污染效能研究仉春华,孙红杰,王芳(大连民族学院环境与资源学院,辽宁大连116605)摘要:以聚丙烯无纺布为膜组件,向浸渍式膜生物反应器中投加软质悬浮填料处理人工废水。通过分析测定膜污染阻力、滤饼层阻力、膜通量、跨膜压力及处理水浊度和CODo的变化,研究软质悬浮填料控制膜生物反应器膜污染的效能。结果表明,投加软质悬浮填料能有效降低膜污染阻力、滤饼层阻力和跨膜压力,增加膜通量,有利于延缓膜污染,提高膜组件的过滤性能;膜生物反应器(MBR)中投加软质悬浮填料能提高COD的生物去除效率,但是降低了膜组件对微小悬浮固体的截留效能,增加了出水浊度和CODc浓度。关键词:悬浮填料;膜生物反应器;膜污染中图分类号:X703文献标志码:AStudyonEfficacyofMembraneFoulingofMBRControlledbySuspendedCarriersZHANGChun—hua,SUNHong—jie,WANGFang(CollegeofEnvironmentandResources,DalianNationalitiesUniversity,DalianLiaoning116605,China)Abstract:Inthispaperwediscusssyntheticdomesticwastewatertreatmentbythesubmergedmembranebioreactor(SMBR)equippedwithsoftporousandsuspendedcarriersusingpoly-propylenenon—wovenfabric(PPNWF)—branefoulingcontrolledbysoftsuspendedcarriersinSMBRisresearchedthroughtestanda—nalysisofmembranefoulingresistance(Rf),filtercakeresistance(Rc),flux,transmem-branepressure(TMP),,filtercakeresistanceandtransmembranepressure,andincreaseflux,—creaseCODCrbiologicalelimination,butretentionperformanceofmicrosuspendedparticle