环境温度下短程硝化的低氧启动与维持周德钧

510006SBR。3．5～4．5mg/L0．8～1．3mg/LNO－2－NNO－2－N80%。NO－2－NAOBAOB13℃NO－2－N0．119g/gMLVSS·d。FANOBFNA、pH。X703A1000－4602201203－0028－04Oxygen-limitedStart-upandMaintenanceofShort-cutNitrificationinSBRatAmbientTemperatureZHOUDe-junZHOUShao-qiMEIDanCollegeofEnvironmentalScienceandEngineeringSouthChinaUniversityofTechnologyGuangzhou510006ChinaAbstractThroughoxygen-limitedcontrolshort-cutnitrificationwascarriedoutinalab-scaleSBRatmediumtemperatureandmaintainedstablyevenatlowtemperature．UsingfullynitrifiedsludgeasseedingsludgeNO－2－NwasrapidlyaccumulatedwhenDOdecreasedfrom3．5－4．5mg/Lto0．8－1．3mg/LandNO－2－Naccumulationratewasmaintainedstablyatabove80%inthesubsequentoper-ation．AsthetemperaturedecreasedgraduallyfirstlyNO－2－Naccumulationandtheselectiveenrich-mentofAOBwereobtainedatmediumtemperatureandthentheAOBwereslowlyadaptedtolowtem-peraturewhilethespecificNO－2－Naccumulationratewas0．119g/gMLVSS·dat13℃．Thesin-gle-cycleoperationshowedthattheinhibitionofNOBbyFAtakenplacemainlyintheearlystageandthatbyFNAandpHmainlyoccurredinthelaterstage．KeywordsambienttemperaturedissolvedoxygenDOshort-cutnitrificationnitriteaccumulation“”2008BAE64B052008DLB2080500、12。DO。AOBNOB·82·28320122CHINAWATER＆WASTEWATERVol．28No．3Feb．2012DODO。GanigueVilar3436℃VanHulle53540℃AOB626℃10℃4．49。。、。11.1SBRSBR50cm20cm16L15L5cm10cm。。12h15min、9～10h、1h、3min30min。、5L5/8。1.2NH+4－N150～340mg/LNaHCO32000～2500mg/LCaCl250mg/LMg-SO4200mg/LKH2PO460mg/LⅠ、Ⅱ11mL/L。A2/OMLSS9．0g/LMLVSS5．0g/L。30mg/L。1Tab．1Compositionoftraceelementsolutionmg·L－1ⅠFeSO45000EDTA5000ⅡZnSO4·7H2O430CoCl2·6H2O240MnCl2·4H2O990CuSO4·5H2O250NiCl2·6H2O190H3BO3141.3SBR100mL0．45μm105℃4hMLSS600℃2hMLVSS。NH+4－NNO－2－NN－1－－NO－3－NpH、DODZS－708。22.1、、、pH、AOBNOB。2。2Tab．2Operationalparametersineachperiod/mg·L－1DO/mg·L－1/℃A160～2003．5～4．525B150～3400．8～1．320～25C290～3300．5～1．013～18AAOBNOBDO3．5～4．5mg/L26d。NH+4－N160～200mg/LNH+4－N30mg/L。NO－3－N18～2595%～99%1。1、Fig．1VariationofnitrogenconcentrationsininfluentandeffluentNOBDODO0．5～1．5mg/L7～9·92·．watergasheat．com28310～12。WiesmannAOBNOB0．3、1．1mg/LAOBDONOBDO0．3～1．1mg/LAOBNOB。BDO0．8～1．3mg/LNH+4－N322mg/LNO－2－N48．9mg/L26～32NO－2－N19．7%81．9%。DONOB。NH+4－NNO－2－N120mg/LNO－2－N84%。。CNH+4－N320mg/LNO－2－NNH+4－NNH+4－N100mg/L。NH+4－NNH+4－NNH+4－N∶NO－2－N1∶1．3。。A2AOB。MLVSS/MLSS0．6。2Fig．2Variationofsludgeconcentration2.2AOBNOBAOBSHARON30～40℃。B25℃6020～23℃NO－2－NC。AOBAOB。1314。、。2.3C3。3、FA、FNApHFig．3VariationofnitrogenconcentrationFAFNAandpHinanoperationperiodSBR5/8NO－2－NNH+4－N。3NO－2－NNH+4－N13℃NO－2－N0．119g/gMLVSS·d0．125g/gMLVSS·d610～16℃0．033～0．039g/gMLSS·dMLVSS/MLSS0．055～0．065g/gM-LVSS·d。·03·283．watergasheat．com3pH、FA、FNA。FAFNA5hFAFNA0．25mg/LNOBFAFANOB0．1～1mg/LFNA7．5hFNA0．89～1．81mg/LpH6．1～6．4AOBNOBFNANOBAOB0．02mg/L0．4mg/L。7．5hpH。。3①DO3．5～4．5mg/L99%DO0．8～1．3mg/LNO－2－NNO－2－N84%。②AOB13℃NO－2－N0．119g/gMLVSS·d。③FANOBFNApHFNAAOBNOB。1AhnYH．Sustainablenitrogeneliminationbiotechnolo-giesAreviewJ．ProcessBiochem20064181709－1721．2ParedesDKuschkPMbwetteTSAetal．Newaspectsofmicrobialnitrogentransformationsinthecontextofwastewatertreatment—AreviewJ．EngLifeSci20077113－25．3GanigueRLopezHBalaguerMDetal．Partialammo-niumoxidationtonitriteofhighammoniumcontenturbanlandfillleachatesJ．WaterRes200741153317－3326．4VilarAEiroaMKennesCetal．TheSHARONprocessinthetreatmentoflandfillleachateJ．WaterSciTechnol201061147－52．5VanHulleSWHVolckeEIPTeruelJLetal．Influ-enceoftemperatureandpHonthekineticsoftheSharonnitritationprocessJ．JChemTechnolBiotechnol2007825471－480．6．J．2009293516－520．7ZengWLiLYangYetal．Nitritationanddenitritationofdomesticwastewaterusingacontinuousanaerobic-an-oxic-aerobicA2OprocessatambienttemperaturesJ．BioresourTechnol2010101218074－8082．8．J．2008241593－96．9ParkSBaeWRittmannBEetal．Operationofsus-pended-growthshortcutbiologicalnitrogenremovalSS-BNRbasedontheminimum/maximumsubstratecon-centrationJ．WaterRes20104451419－1428．10．J．200949121997－2000．11．J．200319121－5．12BlackburneRYuanZKellerJ．Demonstrationofnitro-genremovalvianitriteinasequencingbatchreactortreatingdomesticwastewaterJ．WaterRes2008428/92166－2176．13．、J．200723151－3．14．SBR、J．2009299935－940．1988－。[e-mail]2011－06－28·13·．watergasheat．com283