CN比对反硝化除磷效果的影响郭海娟

,　,.CN[J].,2005,25(3):367-371GUOHaijuan,MAFang,SHENYaoliang.EffectofCNrationondenitrifyingdephosphatation[J].ActaScientiaeCircumstantiae,2005,25(3):367-371CN郭海娟1,2,马　放1,＊,沈耀良21.,　1500902.,　215011:(A2)SBRCN.:CN,CN(DPB).,,、.,MLSS3g·L-1、SRT14d,(COD)、NO-3-NP250∶60∶8,,N、P(COD).:;A2SBR;CN;DPB;:0253-2468(2005)03-0367-05　　:X703.1　　:AEffectofCNrationondenitrifyingdephosphatationGUOHaijuan1,2,MAFang1,＊,SHENYaoliang21.SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechonology,Harbin1500902.UniversityofScienceandTechonologyofSuzhou,Suzhou215011Abstract:TheeffectofCNratioondenitrifyingdephosphatationinananaerobicanoxicsequencingbatchreactor(A2SBR)wasinvestigated.TheresultsshowedthatCNratiohadgreateffectondenitrifyingdephosphatation.Therefore,rationalCNratiocouldprovidetheoptimumoperatingconditionforthepredominantgrowthofbothdenitrobacteranddenitrifyingphosphorusremovalbacteria(DPB)inthesystem.Toachievecompletedenitrifyingdephosphatation,theco-existenceofexteriorcarbonsourceandnitrateshouldbeavoidedforthebest.Otherwise,theratioofcarbonsourceandnitrateshouldbeadjustedtoachievethecompleteni-trogenandphosphorusremoval,whichcouldresultinmoreconsumptionoftherequiredCOD.UndertheconditionsthatMLSSwasabout3g·L-1andSRTwasaround14dinthisstudy,theopitimumremovalefficiencywasobtainediftheinfluentCOD,NO-3-NanddissolvedPwereabout250,60and8mg·L-1,respec-tively.Andatthiscondition,aminimumamountofCODwasrequiredtoremovebothNandPsimultaneously.Keywords:denitrifyingdephosphatation;A2SBR;CNratio;DPB;denitrobacter:2004-03-05;:2004-05-20:“”(ZD200103):(1976—),,,[e-mail];＊()　　(DenitrifyingPhosphorusremovalBacteria,DPB),,[1].[2,3],VlekkeSBRNO-3[4].,(COD)、(PAOS)SRT[5].,,.[6],(SRT),SRT15d.,,,(A2)SBRCN,(COD)、NO-3-NP.1　1.1　SBR,25cm,40cm,17L.25320053　　　　　ACTASCIENTIAECIRCUMSTANTIAEVol.25,No.3Mar.,2005DOI:10.13671/j.hjkxxb.2005.03.016,.1.1　Fig.1　Theschematicexperimentalequipment1.2　8h,1d3,3:3h,4.33h,0.67h.,7.5L,pH7.0±0.1,3hpH7.0±0.1,1LKNO3,,8.5L.16h,HClNaOHpH.1.3　,:　　NaAc,KH2PO4,0.4g·L-1MgSO4·7H2O,0.05g·L-1CaCl2·H2O,0.1g·L-1NH4Cl,2mL·L-1.(1L):0.9044gFeCl3,0.15gH3BO3,0.03gCuSO4·5H2O,0.18gKI,0.06gMnCl2·4H2O,0.12gZnSO4·7H2O,0.15gCoCl2·7H2O,0.06gNa2MoO4·2H2O,10g.NO-3-NKNO3.,.,34d,DPB.1.4　P、NO-2-N、NO-3-N、CODMLSS,[7];pH(ORP)PHS-3TC.2　2.1　C、PNO-3-N　COD250mg·L-1,P8mg·L-1,MLSS3g·L-1,SRT14d,20mmol,30mmol,40mmolKNO3,1PNO-3-N、NO-2-N、COD,23.2　NO-3-N1PNO-3-NFig.2　profilesofdissolved-PandNO-3-NconcentrationsinonecyclewithaddingdifferentNO-3-Ncontents　　,———,;.DPB,,,.23,40mmolKNO3,NO-3-N;20mmolKNO3,;30mmolKNO3,NP,PNO-3-N0.51mg·L-11.05mg·L-1.20mmolKNO3,NO-2-NNO-3-N,,“”.“”(VFA)、..,,3,COD10mg·L-1.368　　　　　　　　　　253　NO-3-NNO-2-NFig.3　profilesofNO-2-Nconcentrationinanoxic-phasewithaddingdifferentNO-3-Ncontents2.2　NO-3-N,3h,pH7.0±0.1,1LKNO3　　　(30mmolKNO3)100min,260min,NO-3-N,4.,.4,NO-3-NDPB,.,NO-3-N,,NO-3-N.2,,,pH.,,pH8.0,P0.14mg·L-1,,pH,P0.8mg·L-1.4　KNO3NO-3-N、P、pHFig.4　profilesofNO-3-N、dissolved-PandpHintheanoxic-phasewithaddingNO-3-Ninstantlyandcontinuously2.3　N、PCODP8mg·L-1,MLSS2.5g·L-1,SRT14d,30mmolKNO3,COD150mg·L-1,250mg·L-1,400mg·L-1,1PNO-3-N、COD,56.,COD400mg·L-1,,,DPB———,.PNO-3-N　　　　5　COD1NO-3-NPFig.5　profilesofNO-3-Nanddissolved-PconcentrationsinonecycleatdifferentCODcontents3693:CN6　CODCODFig.6　profilesofCODconcentrationinanaerobic-phaseatdifferentCODcontents10.57mg·L-10.63mg·L-1.COD150mg·L-1,VFA,,NO-3-N,NO-3-N.5,.,C、N,DPB,;,DPBNO-3-N,,.2.4　CN,,SRT,CN.,;,、.,、.:P10mg·L-1,P,COD300mg·L-1,40mmolNO-3-N;COD400mg·L-1,70mmolNO-3-N.,COD250mg·L-1,P8mg·L-1,MLSS3g·L-1,SRT14d,30mmolKNO3(NO-3-N25mg·L-1),P、NO-3-N、NO-2-N0.51mg·L-1、1.05mg·L-1、0.52mg·L-1,COD.,N、P.KNO3,(COD)、NO-3-NP250∶60∶8.Kuba[5].,CN4.5,8.P1mg·L-1,4mg·L-1.,N、P.,NO-3-N1mg·L-1,“”.,KNO3,NO-3-N1mg·L-1.、、PAODPB.,DPB(SCFAs),.,.,,DPB,;,DPB,.,DPB..CN,,CNDPB.3　　　1)CN,,.CNDPB.2),KNO3,(COD)、NO-3-NP250∶60∶8,.,N、P.3)NO-3-N,.:马　放(1963—),男,教授,博士生导师,国际水质协会(IWA)会员.研究方向:生物相分离技术,固定化生物活性炭技术,复合型微生物絮凝剂的研究与开发,工程菌的构建与生物增强技术.电话:[phone],E-mail:[e-mail].370　　　　　　　　　　25(References):[1]　DAESunglee,CHEOkJeon,JONGMoonPark.Biologicalnitro-genremovalwithenhancedphosphateuptakeinasequencingbatchreactorusingsinglesludgesystem[J].WatRes,2001,35(16):3968—3976[2]　MalnouD,MeganckM,FaupGM,etal.Biologicalphosphorusremoval:studyofthemainparameters[J].WatSciTechnol,1984,16(1011):173—185[3]　BortoneG,MarsiliLibelliS,TiltedA,etal.AnoxicPhosphateUptakeinthedephanoxprocess[J].WatSciTech,1999,40(4-5):177—185[4]　VlekkeGJFM,ComeauY,OldhamWK.Biologicalphosphateremovalfromwastewaterwithoxyenornitrateinsequencingbatchre-actors[J].EnvironTechnolLett,1998,9:791—796[5]　KubaT,VanLoosdrechtMCM,HeijnenJJ.Phosphorusandni-trogenremovalwithminimalCODrequirementbyintegrationofdeni-trifyingdephosphatationandnitrificationinatwo-sludgesystem[J].WatRes,1996,30(7):1702—1710[6]　MerzoukiM,BerneN,DelgenesJP,etal.BiologicaldenitrifyingphosphorusremovalinSBR:effectofaddednitrateconcentrationandsludgeretentiontime[J].WatSciTech,2001,43(3):191—194[7]　SEPA,EditorialCommitteeonthemonitoringandanalyzingofwaterandwastewater.Methodsformonitoringandanalyzing