AAO氧化沟工艺中NO3对生物除磷影响TextMark

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1.,100124,E2mail:[e-mail];2.230088):NO3-,A2/O4,A2/O,NO3-,NO3-.375L.,(NO3-)510mg/L,NO3-,,TPNO3-;(NO3-)510mg/L,NO3-,TPNO3-;(NO3-)015mg/L,NO3-.NO3-015mg/L,,01180147mg/(gVSSh);,,TP.:;A2/O;;;NO3-:X703:A:0367-6234(2008)08-1311-04Effectofnitrateonbiologicalphosphorusremovalwithanaerobic2anoxic2aerobicoxidationditchprocessPENGYong2zhen1,HOUHong2xun1,2,SUNHong2wei1,MAJuan1(1.KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentRecoveryEngineering,CollegeofEnvironmentalandEnergyEngineering,BeijingUniversityofTechnology,Beijing100124,China,E2mail:[e-mail];2.AnhuiGenozhenEnvironmentalProtectionSci.andTech.Co.,Ltd,Hefei230088,China)Abstract:Inordertostudytheeffectofnitrateonthebiologicalphosphorusremoval,theanaerobic-anoxic-aerobic(A2/O)oxidationditch(OD)processwasadoptedtotreatthemunicipalwastewatercombinedwiththecaptivetestfor4months,meanwhiletheoperationdataofanA2/Ooxidationditchwastewatertreatmentplantwereanalyzed.Theeffectofnitrateonphosphorusreleaseintheanaerobiczoneandinthesecondaryclarifierwasstudied.Thevolumeofthewholereactorwas375L.TheresultindicatedthatwiththeeffluentNO3-oftheODmorethan510mg/L,thephosphorusreleasewasrestrainedbyNO3-carriedbythereturnedactivatedsludge,resultinginthedecreaseofTPremovalratewiththeincreaseofNO3-intheeffluent.WhenNO3-intheeffluentwaslessthan510mg/L,theTPremovalratewasdecreasedwiththedecreaseofNO3-intheeffluentduetothephosphorusreleasehappenedinthelowNO3-conditionwithinnercarbonresourceact2ingasanelectronicacceptor.ThecaptivetestindicatedthatthephosphorusreleasewithinnercarbonresourceactingastheelectronicacceptorwasrestrainedwhenNO3-wasmorethan015mg/Linthesecondaryclarifier,whilephosphoruswasreleasedwiththeinnercarbonbeingtheelectronicacceptorwhenNO3-waslessthan:2006-08-14.:(50628808),(2004AA601060);(PXM2008-014204-050843).:(1949),,,,.©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(gVSSh).TheoperationresultofthewastewatertreatmentplantindicatedthatretentiontimeoftheactivatedsludgeinthesecondaryclarifierwassolongthatitwouldincreasetheeffluentTPduetothephosphorusreleasewithinnercarbonresource.Keywords:wastewatertreatment;A2/O;oxidationditch;biologicalphosphorusremoval;nitrate,,A/O,A2/O,BardenphoUCT[1-3],IWAQASM2ASM2d[4].NO3-,NO3-,NO3-(PAOs),PAOs;NO3-PAOs[1-3].BerilS.[5]SBR,NO3-P,NO3-[1,5].NO3-NO3-[6,7],NO3-.,,,,.1111A2/O,,3200L280L95L,1.1(HRT)015h,115h18h,100%,30%,70%..,70%,,,,,.DOORPpH.SBR,10L,.112,,.,COD166545mg/L;BOD595321mg/L;NH4+2952mg/L;TN3773mg/L;TP3181014mg/L.1131.1CODCrNH4+NO3-TNTP-DOORPpHWTW2211NO3-21111NO3-NO3-,2h,NO3-,2,11,KNO3NO3-15mg/L,2h,,PO43-NO3-2.213140©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(gVSSh),30min.15min,.15min1218mg/(gVSSh).,NO3-,PO43-,,1188mg/(gVSSh),1154mg/(gVSSh).,NO3-,PAOs,.PAOs,PAOsNO3-,PAOsNO3-NO3-PAOs.2(NO-315mg/L)PO3-4NO-321112A2/O4A2/OEBPR,TPNO3-3.3TPNO3-(NO3-)510mg/L,TPNO3-,(NO3-)510mg/L,TPNO3-.TP%=7910+218(NO3-),((NO3-)510mg/L,R=0177).(1)TP%=11218-416(NO3-),((NO3-)510mg/L,R=-0190).(2)(NO3-)510mg/L,NO3-,NO3-,(PAOs),,PAOs,,TP.,NO3-PAOs.212NO3-21211,()8h,,4.4NO-331318,:A2/ONO-3©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:1819,VSS314315g/L.4A,B,CDNO3-616mg/L,416mg/L,217mg/L017mg/L,5h,3h,2h1h.NO3-,.(NO3-)015mg/L,,01050108mg/(gVSSh),NO3-015mg/L,PAOs,.A,B,CD0118mg/(gVSSh),0129mg/(gVSSh),0147mg/(gVSSh)0143mg/(gVSSh),7hPO43-216mg/L,610mg/L,914mg/L1019mg/L.4(NO3-)015mg/L,NO3-.NO3-,PAOs,NO3-,.NO3-,NO3-,.ABCDNO3-.EBPR,.,.NO3-.212.2A2/O,200635,5h,TP.520064283ABC()3NO3-PO43-.53NO-3PO3-45,.3A,BCPO43-0147mg/L,0113mg/L0128mg/L,TP68mg/L,,,TP.,,NO3-(210mg/L),NO3-,,,,3NO3-012mg/L.A,BCPO43-3PO43-119,1519419,PO43-3PO43-819,39191913.5A,NO3-,,NO3-,.21213A2/O4A2/OEBPRTPNO3-,(NO3-)510mg/L,TPNO3-,2.TP.NO3-NO3-(NO3-)510mg/L,TP90%.,,;,NO3-,.31),(NO3-)510mg/L,NO3-,TPNO3-.2),(NO3-)510mg/L,TPNO3-,PAOs,TP.(1328)413140©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.)pH115310,60min,m(Fe)/m(C)111110,pH81591040min,.4),,,,,,.:[1].[M].:,2004.[2],.[J].,2002,3(4):69-72.[3],,.[J].,1998,17(3):26-27.[4]JOHNSONTL.Kniticsofhalogenatedorganiccompounddegradationbyironmetal[J].EnvironSciTechnol,1996,30:2634-2640.[5]JINXie.Applicationofironchipsinindustrywastewater[J].IndustryWasterTreatment,1989,9(6):73-76.[6]CHINPao2huang,HUANGWen2wang,CHIUPei2chun.Nitratereductionbymetalliciron[J].WatRes,1998,32(8):2257-2264.[7],,.-[J].,1993,14(3):2-6.[8],,.-[J].,2000,16(2):29-31.[9],,.SBR[J].,2002,18(11):13-18.()(1314)3)(NO3-)015mg/L,NO3-.NO3-,PAOs,NO3-,.NO3-,NO3-,.NO3-.4),,,,TP.,NO3-,,.,NO3-,NO3-PAOs,NO3-,.:[1]JANSSENP