高浓度氨氮消化污泥脱水液半短程硝化试验研究张树军

1,2,1,1,2,2,1＊(1.,　100022;2.,　100038):AO.,9～20℃、DO5.4mgL、SRT30d,(N,)0.64kg(m3·d),29d,65d,FA4mgL,70%;,,1∶1.32;0.19kg(m3·d)(FA1mgL),,FAFISH,FA;COD282mgL,CN0.85,,TN91mgL.,、DO、SRT,pH,FA(4mgL),,.:;CN;;;FA:X703.1　:A　:0250-3301(2009)05-1437-05:2008-08-05;:2008-11-27:(D07050601500000);(PXM2008-014204-050843);:(1970～),,,,,E-mail:[e-mail]＊,E-mail:[e-mail]　Half-nitrosoficationofDewateringLiquidofDigestedSludgewithHighAmmoniaZHANGShu-jun1,2,MENGFan-neng1,LJian1,GANYi-ping2,WANGHong-chen2,PENGYong-zhen1(1.KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentalRecoveryEngineering,BeijingUniversityofTechnology,Beijing100022,China;2.BeijingDrainageGroupCo.Ltd.,Beijing100038,China)Abstract:Theaffectingfactorsandcontrollingmethodsofhowrealizingandmaintaininghalf-nitrosoficationofdewateringliquidofdigestedsludgewereinvestigatedinanAOprocess.Theexperimentalresultsshowedthatthenitritationwasobtainedin29dunderbulkliquidtemperatureof9-20℃,averageDOof5.4mgL,SRTofabout30dandinfluentammonialoadingrateof0.64kg(m3·d).Thenitritationwith70%nitriteaccumulationefficiencywasmaintainedduring65dwhenaverageFAconcentrationinAOreactorwasmorethan4mgL.Furthermore,thehalf-nitrosoficationwitheffluentammoniaandnitriteratioof1∶1.32wasobtained.Whentheammonialoadingratereducedto0.19kg(m3·d)(FA1mgL),thenitritationdisappeared,andthehighFAasamainfactorofmaintaininghalf-nitrosoficationwasprovedagainwithFISHundertheconditionofdifferentFA.TNremovalconcentrationwasabout91mgLunderinfluentCODof282mgLandrawCNratioof0.85intheAOsystem,whichduetonitritationsavingmuchcarbonsources.Thestudyshowedthatthehalf-nitrosoficationofthedewateringliquidwasobtainedandstablymaintainedwhenFAwasmorethan4mgLintheAOreactorbydynamiccontrollinginfluentammonialoadingrateandpHvalueinthesystemundermiddleorlowtemperature,highDO,longSRT.Keywords:highammonia;lowCN;dewateringliquidofdigestedsludge;half-nitrosofication;highFA　　SHARON-ANAMMOX(singlereactorsystemforhighactivityammoniaremovalovernitrite-anaerobicammoniumoxidation),DOANAMMOX[1]、ANAMMOX[2]-.ANAMMOXMulder[3],:,,.ANAMMOX[4～7],.ANAMMOX1∶1.32[8],CN,ANAMMOX,,,50%,,[9].SHARON,SHARON30～35℃.、,9～20℃、DO5mgL,30d30520095　　　　　　ENVIRONMENTALSCIENCEVol.30,No.5May,2009DOI:10.13227/j.hjkx.2009.05.027SRT,AO(-),0.64kg(m3·d),.,,,CN、,.1　1.1　AO()(1).,4,4.5L,1(1a),3(1b、c、d);,12L.,34Ld,(HRT)12.7h,50%.,8～10Lmin,DO5.4mgL.1.　2.AO　3.　4.　5.6.　7.　8.　9.10.AO　11.　12.　13.14.AO　15.　16.a　b、c、d1、2、3AOa※b※c※d1　AOFig.1　Schematicdiagramofhalf-nitrosoficationinanAOprocess1.2　,1.1.3　1　Table1　InfluentcharacteristicspHt℃NH+4-Nmg·L-1CODmg·L-1mg·L-1Pmg·L-17.4～8.29～20270～430145～6321730～234015～287.615330282183520　　COD;;;N-(1-)-;pHpH(WTW);DODO(WTW);;;MLSS.2　,,MLSS2500mgL,96d.、DO,,0.64kg(m3·d),0.84kg(m3·d).2.1　、50%,,,.,、pH、FA、DO、SRT[10,11].,FApH.2.1.1　22,300mgL(FA4mgL),0～1mgL,.,,,,.25d,,,.,,,.3100mgL(FA1mgL),0～1mgL,.,1438　　　　　　30,,20mgL.,,4d0,;,60mgL.100mgL,FA4mgL1mgL,,.2　Fig.2　VariationofNH+4-N,NO-2-NandNO-3-Nwithhighammonia3　Fig.3　VariationofNH+4-N,NO-2-NandNO-3-Nwithlowammonia2.1.2　FA,,,Anthonisen[12].,FA[13].FApH,pH:(AOB)pH;pHFA,(NOB).4,,29d,50%,.,70%,90.2%.,FA4.16mgL,10.14mgL,,Anthonisen[12]FANOBAOB0.1～1.0mgL10～150mgL.,,9～20℃,DO5.4mgL,1.5mgL(0.2～0.4mgL,1.2～1.5mgL),SRT30d,,FA.FA,FA,,5.100mgL,FA0.3～0.8mgL,4d0,0.DO、SRT,FA.4　FAFig.4　RelationbetweenFAandnitriteaccumulationwithhighammonia5　FAFig.5　RelationbetweenFAandnitriteaccumulationwithlowammonia,FAFA,,FISH(fluorescenceinsitu14395:hybridisation)[14,15]AOBNOB.,FAAOBNOB7.90%、3.18%;FAAOBNOB6.93%、4.86%.FA0.3～10.14mgL,NOB,FANOB,,FA(0.8mgL),,.FAAOB、NOB,NOB,FA.SHARON30～35℃,,;OLANDCANONDO,,,.,、DO,FA,,.2.1.3　71d,,6.6　Fig.6　Parametervariationsinflowpathwayduringstableoperationperiod9.4℃,pH7.65,FA4.11mgL,436mgL.(1a),,12.4℃,pH7.56,FA2.65mgL,232mgL,151mgL,76.8%,0.65.(1b、c、d),DO5mgL,、FA,、.AOpH7.15,FA0.58mgL,152mgL,222mgL,87.3%,　　　　　　1.46∶1.6,FA,pH,FA.2.2　19～96d7,,,1∶1.32.,,.,330mgL,119mgL,63.9%,64.2%.30d,,SRT30d,DO,FA5mgL,NOB,AOB,.30d,NOBFA,AOB,4,,222mgL,1∶1.32,ANAMMOX.7　Fig.7　Ratio'schangebetweenammoniaandnitriteineffluent2.3　CODNH+4※NO-2※N2,40%[16].(CN≈1.0),,(CN≥4.0)(CN≥2.5[17～19]),.,,1440　　　　　　30ANAMMOX.8,,COD,COD,,.,40%,COD,282mgL,CN1.0,29.2%,91mgL.,ANAMMOX,ANAMMOX,,.8　CODFig.8　RelationbetweenTNandCOD3　(1)AO,9～20℃,DO5mgL,SRT30d,0.64kg(m3·d),.(2)FA,FApH.FA4mgL,70%.FISHAOBNOBFA.,1∶1.32,.(3)COD282mgL,CN1.0,29.2%,91mgL.:[1]　DongenVU,JettenMSM.TheSHARON-ANAMMOXprocessfortreatmentofammoniumrichwastewater[J].WatSciTech,2001,44(1):153-160.[2]　.-[D].:,2005.17-22.[3]　MulderJW,RogierVK.N-removalbySHARON[R].IAWQConference,1997.30-31.[4]　,.———SHARON-ANAMMOX[J].,2001,27(10):22-27.[5]　GraffAA.Metabolicpathwayofanaerobicammoniumoxidationonthebasisof15Nstudiesinafluidizedbedreactor[J].Microbiology,1997,143(7):5-21.[6]　,.[J].,1998,23(4):409-413.[7]　StrousM,GerrenEV,ZhengP.AmmoniumRemovalFromConcentratedWasteStreamwiththeAnaerobicAmmoniumOxidation(Anammox)ProcessinDifferentReactorConfigurations[J].WatRes,1997,31(8):1995-1962.[8]　StrousM,KuenenJG,JettenMSM.Keyphysiologyofanaerobicammoniumoxidation[J].ApplEnvironMicrobiol,199