A2O系统在低温和中温条件下的启动运行特征金羽李建政马放赫俊国

A2/O121111．1500902．1500302314℃A2/O。。23℃A2/OCOD、NH3－NTP89．5%、94．7%96．3%《》GB18918—2002A。14℃A2/OCODTPGB18918—2002ANH3－N8．7mg/LAA2/ONH3－N。A2/OX703C1000－4602201401－0061－052013ZX07201－00712511059QC2009C92Start-upofA2/OProcessatLowandMediumTemperaturesJINYu12LIJian-zheng1MAFang1HEJun-guo11．StateKeyLaboratoryofUrbanWaterＲesourceandEnvironmentHarbinInstituteofTechnologyHarbin150090China2．CollegeofＲesourcesandEnvironmentNortheastAgriculturalUniversityHarbin150030ChinaAbstractTodevelopcountermeasuresforlowqualityeffluentfromwastewaterbiologicaltreatmentsystemsincoldnorthernweatherthestart-upoperationandpollutantsremovalperformanceoftwoanae-robic-anoxic-aerobicA2/Osystemswereassessedattemperaturesof23℃and14℃．Theresultsshowedthatlowtemperaturecouldreducesewagetreatmentefficiencyandslowdownthestart-upprocess．TheA2/Osystemoperatedattemperatureof23℃startedupmorerapidlytheremovalratesofCODNH3－NandTPwere89．5%94．7%and96．3%respectively．TheireffluentconcentrationscouldmeetthefirstlevelAcriteriaspecifiedintheDischargeStandardofPollutantsforMunicipalWastewaterTreatmentPlantGB18918－2002．FortheA2/Osystemoperatedattemperatureof14℃theefflu-entCODandTPcouldalsomeetthisstandardexceptthattheeffluentNH3－Nwasabout8．7mg/L．InthefuturetheregulationandcontrolofA2/Osewagetreatmentprocessincoldnorthernweathershouldfocusontheenhancementofammoniaoxidization．KeywordsdomesticsewageA2/Oprocesstemperaturestart-uptreatmentefficiency·16·30120141CHINAWATEＲ＆WASTEWATEＲVol．30No．1Jan．2014、1～4。A2/O5～7。。A2/O38～11。A2/O2314℃。11.12A2/O、、1。40L82、2、4。、、1∶1∶314L。。、。A2/O。223±114±1℃。1Fig．1SchematicdiagramofA2/Oreactor1.2COD173～328mg/L、NH3－N27．7～51．7mg/L、NO－3－N0．24～1．0mg/L、TN38～65mg/L、TP3．2～6．7mg/L。A2/O。23℃SV3080%、MLSS7290mg/L14℃SV3090%、MLSS7350mg/L。1.3A2/O。40%。22h2h24L。3d。A2/O2d4d。A2/O4．0L/hHＲT10hMLSS2800～3000mg/LDO2～3mg/L50%200%15d。1.4A2/O。COD、NH3－NTP《》412。2A2/OCOD、NH3－NTP。2.1CODCOD2。12dA2/OCOD14d·26·301．watergasheat．com14～40COD88．4%。A2/OCODCOD2687．2%26～40。2A2/O、CODFig．2CODconcentrationandremovalrateinA2/Osystem2.2NH3－NNH3－NA2/O。NH3－NNO－2－NNO－3－N13。3A2/ONH3－N。A2/ONH3－N1481．6%24～4094．7%NH3－N2．3mg/L。A2/ONH3－N28NH3－N78．7%NH3－N8．7mg/L。3A2/O、NH3－NFig．3NH3－NconcentrationandremovalrateinA2/Osystem2.3TPA2/OTP4。4A2/O、TPFig．4TPconcentrationandremovalinA2/Osystem·36·．watergasheat．comA2/O301A2/OA2/OTPCODNH3－N①6dA2/OA2/O654．5%48．2%。②TP。A2/OTP6d6d“”14A2/OTPTP12“”“”4d。22dA2/OTP96．2%TP0．19mg/LA2/O6d28～4092．7%TP0．5mg/L0．36mg/L。2.4A2/O。A2/O24d17d。A2/O2813d。A2/O。A2/OCODCOD88．4%27．7mg/L87．2%36mg/L。CODA。A2/OCOD。TP96．2%92．7%TP0．190．36mg/LA。NH3－N。23℃A2/ONH3－N94．7%NH3－N2．3mg/LA14℃NH3－N78．7%NH3－N8．7mg/LA。。NH3－N14。46d“”。4℃15d。15。A2/OTP3%。20℃、A2/OTP。A2/ONH3－N。14℃A2/OCODTPGB18918—2002ANH3－N。NH3－NA2/OTN。A2/ONH3－N。3①HＲT10h、MLSS2800～3000mg/L、DO2～3mg/L、50%、200%15d·46·301．watergasheat．comA2/O23℃24d14℃28d。②A2/O2314℃87%92%CODTP《》GB18918—2002A。③CODTPA2/ONH3－N14℃NH3－NAA2/ONH3－N。1LeCZhaYLiYetal．EutrophicationoflakewatersinChinacostcausesandcontrolJ．EnvironManage2010454662－668．2AkporOBMuchieM．EnvironmentalandpublichealthimplicationsofwastewaterqualityJ．AfrJBiotechnol201110132379－2387．3OehmenALemosPCCarvalhoGetal．AdvancesinenhancedbiologicalphosphorusremovalfrommicrotomacroscaleJ．WaterＲes200741112271－2300．4GebremariamSYBeutelMWChristianDetal．Ｒe-searchadvancesandchallengesinthemicrobiologyofenhancedbiologicalphosphorusremoval—acriticalre-viewJ．WaterEnvironＲes2011833195－219．5SeviourＲJMinoTOnukiM．Themicrobiologyofbio-logicalphosphorusremovalinactivatedsludgesystemsJ．FEMSMicrobioＲev200327199－127．6BanuＲJUanDKYeomIT．NutrientremovalinanA2O－MBＲreactorwithsludgereductionJ．BioresourTechnol2009100163820－3824．7VenturaJSSeoSChungIetal．Enhancedreductionofexcesssludgeandnutrientremovalinapilot-scaleA2O－MBＲ－TADsystemJ．WaterSciTechnol20116381547－1556．8KumarPMehrotraIViraraghavanT．Biologicalphos-phorusremovaleffectoflowtemperatureJ．JColdＲegionsEng199610263－76．9LiNＲenNQWangXHetal．Effectoftemperatureonintracellularphosphorusabsorptionandextra-cellularphosphorusremovalinEBPＲprocessJ．BioresourTechnol2010101156265－6268．10MaJPengCYTakigawaAetal．Effectofinfluentnu-trientratiosandtemperatureonsimultaneousphosphorusandnitrogenremovalinastep-feedCASTJ．WaterSciTechnol20106292028－2036．11TrapaniDDChristenssoMdegaardH．Hybridacti-vatedsludge/biofilmprocessforthetreatmentofmunici-palwastewaterinacoldclimateregionacasestudyJ．WaterSciTechnol20116361121－1129．12．4M．2002．13YangQPengYZLiuXHetal．Nitrogenremovalvianitritefrommunicipalwastewateratlowtemperaturesu-singreal-timecontroltooptimizenitrifyingcommunitiesJ．EnvironSciTechnol200741238159－8164．14SudarnoUWinterJGallertC．Effectofvaryingsalini-tytemperatureammoniaandnitrousacidconcentra-tionsonnitrificationofsalinewastewaterinfixed-bedre-actorsJ．BioresourTechnol2011102105665－5673．15．J．20081233133－134．1979－。[e-mail]2013－07－08·56·．watergasheat．comA2/O301