HRT厌氧反应器与好氧MBR组合工艺中对有机物去除效果的研究李克林

1321673-1212(2006)01-0132-03X703.1B~~~~ENVIRONMENTALSCIENCEANDMANAGEMENT133~134~~~~~StudyOntheRemovalofOrganicPollutantsatDifferentHRTinanAnaerobicBioreactorandMBRLIKe-lin1,TONGZhi2,TONGPan-rui3(1.2.3CollegeofEnvironmentalXi’anUniversityofEngineeringScienceTechnology,Xi’an710048,China)Abstract:Inthispaper,usedthecombinedprocessofananaerobicreactorandamembranebioreactor(MBR)treatedprintinganddyeingwastewater,investigatedtheinfluenceofhydraulicretentiontime(HRT)ontheorganicpollutantsremoval.Thedissolvedoxygen(DO)concentrationwascontrolledat1.8~2.6mg/Lduringalltheexperimentperiod.TheexperimentalresultsdemonstratedthatwhenHRTwasat7.54.5and2.5h,theremovalratesofCODwere88.7~96.5,87.3~97.281~92,andtheeffluentCODwere78.9~51.2,81.6~50.8,93.4~65.8mg/L,respectivelyInaddition,theeffectofactivatedsludgeconcentration(MLSS)onCODremovalwasalsoinvestigated.ItwasshowedthattheoptimumMLSSwasbettercontrolledataround6500mg/Linthisprocess.Keywords:MBRanaerobicbioreactorHRTMLSS