COD对强化生物除磷系统的影响及OUR的变化规律

52环境工程学报Vol.5,No.220112ChineseJournalofEnvironmentalEngineeringFeb.2011CODOUR张婧倩彭永臻*唐旭光王淑莹(,100124),SBR/,(EBPR)CODCODOUR4,,COD50100300mg/L430minCOD,1247273364360248mg/(gMLSSh);COD100mg/LCOD;OUR4CODOURX703A16739108(2011)02030105EffectofCODonenhancedbiologicalphosphorusremovalsystemandvariationofOURZhangJingqianPengYongzhenTangXuguangWangShuying(KeyLaboratoryofBeijingWaterQualityScienceandWaterEnvironmentRecoveryEngineering,BeijingUniversityofTechnology,Beijing100124,China)AbstractInordertoinvestigatetheeffectofCODonenhancedbiologicalphosphorusremoval(EBPR)systemandvariationofOUR,aSBRprocesswasusedfortreatingrealdomesticwastewater.Theprocessrunasanaerobic/aerobicstyle.TheexperimentwascarriedoutinfourstageswithdifferentaddedCOD(0,50,100and300mg/L)attheendofanaerobicphase.Ineachstage,CODwasstillondegradationduringthefirst30minofaerobicphaseandphosphorusuptakerateofeachstagewas12472,7336,4360and248mg/(gMLSSh),respectively.WhentheaddedCODwashigherthan100mg/L,phosphorusuptakerateincreasedobviouslyafteralltheCODwasremoved;andthetimewhenphosphoruswasallabsorbedofeachstagewasextended.OURcouldbeusedasacontrolparameterofphosphorusuptakeinallthestages.Keywordsenhancedbiologicalphosphorusremovalsystem;CODofaerobicphase;variationofOUR:!∀(2006BAC19B03);(PXM2008_014204_050843);(PHR20090502):2009-12-13;:2010-01-16:(1986~),,,Emai:[e-mail]*,Emai:[e-mail],DOpHORP[1],/(EBPR),DOpHORP3,EBPREBPR(oxygenuptakerate,OUR)[23],,[45]PHA,O2,OURO2OURSBR,/5,CODOUR,OUR11.1,11Table1RealdomesticwastewatercharacteristicspH7.2~7.67.4COD(mg/L)118.0~240.2161.4PO3-4P(mg/L)3.36~9.655.75NH+4N(mg/L)48.2~57.252.7NO-2N(mg/L)0~0.0500.01NO-3N(mg/L)0~1.140.501.2SBR,120cm,40cm,12L,10L2,2500mg/L,10d,80%4,,COD(50100300mg/L),CODOUR2pHOUR,OUROUR,(allylthiourea,ATU)OUR[6]160L/h1SBRFig1SchematicdiagramofSBR2Table2Runningphaseoftheexperiment(mgCOD/L)(h)(h)HRT(h)#1~5225∃5~1050236.25%10~15100236.25&15~20300247.513CODCOD;PO3-4P;WTWDOpH1.4OUROURDO05mg/L,,2WTW,,DO,DO5sExcelDO,(h),DO(mg/L),0.998,OUR,mgO2/(Lh)2OURFig2ExperimentalsetupformeasuringstaticOURDO05mg/L,DO05mg/L,DO,OUR,OUR[7],3022:CODOUR,KLA,(),,KLAdCdt=KLA(CS-C)-OUR(1)DO,(1):KLA=OURCS-C(2),,OURDO,OURDOCS(2),KLAKLADO(DO006mg/L,DO)(2),OUR221COD,PHA,PHA,O2,,,,O2O2,,O22,O2COD3430min,41247273364360248mg/(gMLSSh),,O2;COD,,,%&2,180min210min,COD;,,COD150mg/L(100mg/LCOD),O2,2.2CODOUROUR,OUR,5~8,9DO,3:#,5,COD150min,210min,OUR05h;05~2h;1h4PO3-4P210240270300min,4OUR,,OUR3035,OURCOD5~7,#∃%3,COD150150180min,OUR;&,OURCOD(210min),OURCODCOD:EBPR,COD,,;PHA,O2,,EBPROURCOD,,&,COD(COD400mg/L),,O29,DO(120~210min)006mg/L,O2,(556mgO2/(Lh))COD,,O2;PHA,O2,&,OURCOD,COD3042:CODOUR,COD,OUR,COD3(1)COD,COD100mg/L,COD,,(150mg/L),O2(2)OUR,EBPR,COD(3)CODO2,OURCODCOD,OURCOD[1]PengYz,ZhuGb.Biologicalnitrogenremovalwithnitrificationanddenitrificationvianitritepathway.AppliedMicrobiologyandBiotechnology,2006,73(1):1526[2],,,.SBR.,2007,29(7):481483[3],..,2007,23(3):3133[4],,,.(OUR).,1999,19(3):37[5],,,.SBR.,2007,1(4):123126[6]SvardalK.,NowakO.Observationsonthekineticsofnitrificationunderinhibitingconditionscausedbyindustrialwastewatercompounds.WaterScieceandTechnology,1993,28(2):115123[7],..(),2007,21(3):5155305