串联活性污泥系统处理制药废水工艺研究

39420074JOURNALOFHARBININSTITUTEOFTECHNOLOGYVol139No14Apr.20071,1,1,ChuaHong1,2(1.,150090,E2mail:[e-mail];2.,):(CMAS),,.F/M011012018115gCOD/(gMLSSd)SRT810dDO13mg/L2734,CMAS,CODTSS90%95%.SOUR=4915mg/(gMLSSh),CMAS.HRT,CMAS.COD(CODe)=(COD0)e-at.,,(GB8978-1996).:;;;COD:X703:A:0367-6234(2007)04-0576-05Processinvestigationonactivatedsludgein2seriessystemtreatingpharmaceuticalwastewaterCAIMeng2meng1,ZHAOQing2liang1,LIUZhi2gang1,ChuaHong1,2(1.SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China,E2mail:[e-mail];2.DepartmentofCivilandStructureEngineering,TheHongKongPolytechnicUniversity,HungHom,Kowloon,HongKong,China)Abstract:Alab2scalestudyoncompletely2mixedactivatedsludgeaerationtankin2series(CMASin2series)treatingpharmaceuticalwastewaterfromaHarbinpharmacyplantwasconductedtooptimizethepracticalfull2scaleplantoperationparametersandtoexploretheremovalofvariouspollutants.InCMASin2seriessystem,suchoperationalconditionslikeF/M=011-012or018-115gCOD/(gMLSSd),SRT=8-10d,(DO)=1-3mg/Landtemperature27-34benefitedsludgesettlingabilityandobtainedtheremovalrateofCODandTSSover90%and95%,respectively.SpecificoxygenuptakerateofSOURavg.=4915mgO2/(gMLSSh)indicatedgoodsludgeactivityintheaerationtanksofCMASin2series.Increasingthetanknum2berofCMASin2seriessystemfavoredsludgesettlingabilityunderthesameHRT.Bio2degradationofCODinthissystemfollowedamathematicalmodelof(CODe)=(COD0)e-at.Practicalprojectoperationper2formancefromthesimulationresultsshowedthatthesystemwaseffectiveandsteady,andtheeffluentmetthefirstlevelcriteriaoftheIntegratedWastewaterDischargeStandard(GB8978-1996).Keywords:pharmaceuticalwastewater;completely2mixedactivatedsludgeaerationtankin2series;processoperationoptimization;CODdegradationmodel:2005-11-30.:(1980),,;(1962),,,,;ChuaHong(1962),,,,.,,[1-2].[3-6].,,.:Q=10003500m3/d,(COD)=575280mg/L,m(BOD5)m(TN)m(TP)=15441,m(BOD5)/m(COD)=01440173,(TSS)=18304mg/L,2734,pH=615915.,(CMAS),6CMAS,(HRT)10h.CMAS,[6],[7];CMAS,[1];,[7];CMAS[7].,,,CMAS,CODNH4+-N.1111((COD)=260mg/L,(NH4+-N)=77mg/L,(TP)=118mg/L).((COD)=2001500mg/L),:BOD(sBOD5)BOD(tBOD5):m(sBOD5)/m(tBOD5)=01640170;COD(sCOD)COD(tCOD):m(sCOD)/m(tCOD)=01920193;:m(sCOD-sBOD5)/m(tCOD)=01410149;:m(tBOD5)/m(tCOD)=01700178;:m(sBOD5)m(NH4+-N)m(TP)=13261.A/O,2500mg/L.:SRT=79d,(MLSS)=2300mg/L,m(MLVSS)/m(MLSS)=0176,SVI=132.m=0170gsCOD/(gMLVSSd),Y=0152gMLVSS/(gsCODd);Ks=0148mgsCOD/L;kd=0109gVSS/(gMLVSSd).112CMAS()1.6(SBR)2000mL,CMAS.,(DO)2mg/L.SBRCMAS,,,.1CMAS,(CODSS)(MLSSSRT),.115h,015h.DOpH,,MLSSSOUR,SV%.:[6]m,2000mL,((COD)=560mg/L)(Q=2mL/min),,;,MLSSCOD,YHkd[6].113(sCODCODbCODBOD5TSSNH4+-NTPpH),(MLSSMLVSSSV%SVI)(DOSOUR).SOUR(1),DODO,[8].:,7754,:,.SOURi=d(DO)dti(MLSSi).:SOURi,mgO2/(gMLSSh).22112.1.1(F/M)SVIF/M,,F/M012F/M018gCOD/(gMLSSd),SVI4560;F/M012018gCOD/(gMLSSd),SVI,.,HRTSRT,6CMAS(SVI=87)(SVI=183).,,[7],,6CMAS.2.1.2(SRT)2SRTCODm(BOD5)/m(COD).,SRT1d10d,COD6715%9117%,m(BOD5)/m(COD)01350114.,,.SRT10d,COD,m(BOD5)/m(COD),.,SRT=810d.2m(BOD5)/m(COD)COD2.1.3(DO)3DOCOD,5minDO.,CODDO.,,,.,(DO)=13mg/L.3DOCOD2.1.44CMAS.,2235,CMASCOD80%,2835COD2227,TSS.,(2734),CMAS.42.1.55CMASCODNH4+-N,Ncell+Pcell.,CMAS,1min;mbCOD,MLSS;SOUR,,.HRT,sCOD,,,;,SOUR.HRT,87539COD,,;,SOUR.,60%NH4+-N,;,NH4+-N150180min(6mg/L)..52.1.6CMAS[9-10].CMAS(6),COD(CODe)=(COD0)e-at(R20192).:(COD0)(CODe)COD,mg/L;a,COD,CMAS,F/M011013013018018115gCOD/(gMLSSd),a210315415615610815d-1;t,1/6HRT,d.2126CMASCOD.,(COD)1300mg/L,V((COD)100mg/L).(COD)2000mg/LCOD86%,,CMAS.6CMASCODCMAS,SOURF/M7((COD0)=1173mg/L,HRT=10h,SRT=9d,(DO)=211mg/L,t=31).,F/MSOURCMAS:F/M210gCOD/(gMLSSd),,F/MSOUR.SOUR[10],SOUR=4915mgO2/(gMLSSh)CMAS.CMAS,F/M,Gra2dy[11].,8COD.COD1101436223mg/L,a610415210d-1.9754,:,CMAS,.,112.7CMAS831)CMAS,F/M=011012018115gCOD/(gMLSSd),HRTCMAS,SRT810d,DO13mg/L,2734;SOUR=4915mgO2/(gMLSSh),CMAS.2)CMASCOD(CODe)=(COD0)e-at.3)CMAS,(COD)1300mg/L,COD100mg/L,.:[1]Metcalf&Eddy,Inc.WastewaterEngineeringTreat2mentandReuse[M].4thed.Beijing:TsinghuaUni2versityPress,2003.[2]RAJD,ANJANEYULUY.Evaluationofbiokineticpa2rametersforpharmaceuticalwastewatersusingaerobicoxidationintegratedwithchemicaltreatment[J].ProcessBiochemistry,2005,40(1):165-175.[3].()[M].:,20001[4].[M].:,2002.[5]LAPARAATM,NAKATSUCH,PANTEALM,etal.Stabilityofthebacterialcommunitiessupportedbyaseven-stagebiologicalprocesstreatingpharmaceuticalwastewaterasrevealedbyPCR-DGGE[J].WaterResearch,2002,36(6):38-46.[6]ECKENFELDERWWJR.IndustrialWaterPollutionControl[M].3rded.Beijing:TsinghuaUniversityPress,2002.[7]GRADYCPLJR,DAIGGERGT,LIMHC.[M].2.,,.:,2003.[8].[M].3.:,1989.[9],,.[M].3.:,1998.[10].[M].:,20011[11]MAJONEM,TANDOIV.StoragePolymers:RoleintheEcologyofActivatedSludge,EncyclopediaofEnvi2ronmentalMicrobiology[M].[s.l.]:JohnWiley(),2003.()08539