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1111111121．1001242．15009015～28℃DO=0．10～1．0mg/LA/O。2020d70%80%0．08kgNH+4－N/m3·d。。DO、、HRTSRTNOB。。X703A1000－4602201209－0035－05508780038092006QAK2010052008ZX07208－003－003、2008ZX07420－004－001、2008ZX07208－005－003ykj－2011－4764、ykj－2011－4765、ykj－2011－4766Start-upExperimentofShortcutNitrificationforLowAmmoniaNitrogenWastewateratRoomTemperatureZHANGZhao1LIDong1ZHONGHang1LIULi-qian1ZHOULi-jun1SUNYu1WUDi1ZHANGJie121．KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentRecoveryEngineeringBeijingUniversityofTechnologyBeijing100124China2．StateKeyLaboratoryofUrbanWaterResourceandEnvironmentHarbinInstituteofTechnologyHarbin150090ChinaAbstractTheeffluentofanA/Oprocessremovingphosphorousfrommunicipalwastewaterwasusedastheinfluentofapilot-scaleplugflowreactor．Undertheconditionsofroomtemperature15to28℃andlimitedoxygenDO=0．10to1．0mg/Lthenitrifyingsludgewasinoculatedandshortcutnitrificationwasstartedbysequencingbatchandcontinuousflowmethods．Inthesequencingbatchreac-torthestrategyofreal-timecontrolofaerationdurationwastaken．After20continuouscycles20dtheammoniaoxidationratewasover70%thenitrosationratewasover80%andtheremovalloadreached0．08kgNH+4－N/m3·dshowingthattheinitialstart-upofshortcutnitrificationwasa-·53·28920125CHINAWATER＆WASTEWATERVol．28No．9May2012chieved．Therelativelyhighsludgeloadingrateaswellasthedelayofaerationmadeshortcutnitrificationunstabletothepointofcrashing．InthecontinuousflowreactoreliminatingnitriteoxidizingbacteriaNOBbycontrollingdissolvedoxygenDOaerationmodehydraulicretentiontimeHRTsludgeretentiontimeSRTandotherparameterswasdifficult．Meanwhiledramaticallyincreasingtheorganicloadingcausedlimitedsludgebulkingbutwhenorganicloadingwasreducedsludgebulkinggraduallydisappearedandnitrificationperformancewasnotaffected．Keywordsshortcutnitrificationstart-upsequencingbatchcontinuousflowdissolvedoxygenplugflowlowammonianitrogenwastewaterC/N。、、。25%、40%、50%1～5。。、、。。A/O、。11.11。41．2m32．0m×0．6m×1．0m。300L。。。1Fig．1Schematicdiagramofshortcutnitrificationreactor。0．5h、14～18．5h、1．0h、0．5h、3．5～8h。1.2。100L5700mg/LMLSS=500mg/L600L6650mg/LMLSS=3500mg/L。A/O1COD。1Tab．1CharacteristicsofinfluentCOD/mg·L－1NH+4－N/mg·L－1NO－2－N/mg·L－1NO－3－N/mg·L－1pHTP/mg·L－130～7043～900～1．990～2．707．50～8．030．2～1．0·63·289．watergasheat．com1.3NO－2－NN－1－－NO－3－NpH、DOWTW。22.12.1.114．8～19．6℃53～90mg/L。＞50%。、2。2、Fig．2Variationofinfluentandeffluentammonianitriteammoniaoxidationrateandnitriteoxidationratewithtime260%16%10mg/L60mg/L。AOB14h18．5h85%36%。14～18h75%1250%。、pH“”NOB。DO＜1．0mg/LAOBDONOBAOBDO。2070%80%0．06～0．10kgNH+4－N/m3·d3。3Fig．3Variationofammoniaremovalratewithtime70%25mg/L。70%DOAOBNOBNOBNO－2－NNOB10h4。4NO－3－NFig．4VariationofeffluentNO－3－Nwithtime2.1.238。、4．178mgNH+4－N/h·L2．378mgNO－2－N/h·L。·73·．watergasheat．com289DO2．50mg/L1h0．25mg/L5。DO2“”pH18h＞95%pH“”。DO、ORPpH。5DO、ORP、pHFig．5VariationofDOORPandpHduringtypicalcycle75%50%。。2.1.34h2、4A、B、C70%52%。65%50%NOBDO。MLSS25～60250mg/L100mg/L0．41kgNH+4－N/kgMLSS·d0．50～0．60kgNH+4－N/kgMLSS·d。AOBNOB。7035%45mg/L22mg/L。40%～60%10%。。、80%AOBNOBDO、。。AOBNOB。2.22.2.122．0～26．8℃。AOBNOBDOAOBNOB644、3、2、1L/minDO0．50、0．30～0．40、0．15～0．25、0．05～0．10mg/L。1d80%。HRT7～45HRT10～11h46～93HRT7～9h。20d1mg/L。NOBAOB。AOBYAOBLmNH+4－NNOB7。2144、0．5、3、0．5L/minDO0．30～0．50、0～0．05、0．10～0．20、0～0．05mg/L///1mg/L。55～601．5mg/L0．50mg/L。。、、3。①·83·289．watergasheat．com、FAFA＜0．50mg/L②DO、HRTAOBNOBDO。2.2.2SRTSV15%～25%SVI60～120mL/g。20～8045dSRTNOB。870MLSS3500mg/L2000mg/L。7550L/hCOD150～200mg/L1DO0．40mg/L0．20mg/LSV19%30%SVI84mL/g132mL/g。DO、30%2d2SV25%6d19%。。25～28℃AOBNOBSRTAOBNOB。SRT。DO、SRT、FA。。3①2020d70%80%0．08kgNH+4－N/m3·d。②14．8～19．6℃AOBNOBAOBDO。③DO、、HRTSRTNOB。。1GalíADostaJvanLoosdrechtMCMetal．BiologicalnitrogenremovalvianitriteofrejectwaterwithaSBRandChemostatSHARON/denitrificationprocessJ．IndEngChemRes200645227656－7660．2BartroliACarreraJPerezJ．Bioaugmentationasatoolforimprovingthestart-upandstabilityofapilot-scalepartialnitrificationbiofilmairliftreactorJ．BioresourTechnol201110264370－4375．3NittamiTOotakeHImaiYetal．Partialnitrificationinacontinuouspre-denitrificationsubmergedmembranebio-reactoranditsnitrifyingbacterialactivityandcommunitydynamicsJ．BiochemEngJ2011552101－107．4WangLAZhuJMillerC．Thestabilityofaccumulatingnitritefromswinewastewaterinasequencingbatchreac-torJ．ApplBiochemBiotechnol20111633362－372．5．J．20104081156－1162．6．NO－2J．200930185－90．7WuChang-yongPengYong-zhenWangShu-yingetal．Effectofsludgeretentiontimeonnitriteaccumulationinreal-timecontrolbiologicalnitrogenremovalsequencingbatchreactorJ．ChineseJournalofChemicalEngineer-ing20113512－517．8BaeWBaekSChungJetal．Optimaloperationalfac-torsfornitriteaccumulationinbatchreactorsJ．Biodeg-radation2001125359－366．1986－。E－mail7626926sea@163．com2012－01－10·93·．watergasheat．com289