A2O工艺中HRT对系统脱氮除磷效率的影响李永峰

27420118JournalofHarbinUniversityofCommerceNaturalSciencesEditionVol．27No．4Aug．20112010－12－20．8632006AA05Z109071605122．1961－．A2/OHRT201620A2/O．50LA2/OHydraulicResidenceTimeHRTA2/O．∶∶1∶1∶275%200%HRTCODNH3—N、TNTPHRT8h．TNNH3—N．TN、NH3—NCODHRTHRTTP．A2/OX703A1672－0946201104－0566－05EffectofHRTonperformanceofnitrogenandphosphorusremovalbyA2/OprocessLIYong-fengPANXin-yuYANGJian-yuSchoolofChemistryandChemicalShanghaiUniversityofEngineeringTechologyShanghai201620ChinaAbstractHRTisthekeyfactorwhichrestrictsbiologicalnutrientsandphosphousremovalbyA2/Oprocess．ThispaperdiscussedonhowtheHRTaffecttheremovalsofnitrogenandphosphorusinsyntheticbrewagewastewatertreatmentplantinA2/Oprocesswithaworkingvolumeof50L．TheresultfoundthattheHRThaslesseffectofCODremovalthanthatofammonianitrogenTNandTP．TheeffectreachedbestwhenHRTwas8h．Thevolumeratioofanaerobic∶anoxic∶aerobiczonewas1∶1∶2andsludgerecycleratio75%returnratioofmixedliquorof200%．TheresultsshowedthatCODremovalneedslongerHRTthanTNandNH3—NremovalbutitwasdisadvantageoustoTPremovalwhenHRTwastoolong．KeywordswastewatertreatmentbiologicalnutrientsandphosphousremovalA2/Oprocesshydraulicresidencetime．A2/O、、、．A2/O、DOI:10.19492/j.cnki.1672-0946.2011.04.012BOD、．A2/O、、、．1A2/OA2/OCOD、TPNH3—NTN200%750%HRT．2A2/OA2/OHRT8．5h．3．HRT8h．A2/OHRT．HRT．HRTCOD4－6COD．HRT4～5hHRT．HRTSRT．HRT、A2/OHRTHRTA2/O．11．1A2/O150L8－－、∶∶1∶1∶225．5L．．、．1—2—3—4—5—6—7—8—1A2/O21～22℃．MLSS3358mg/L200%75%SRT15dDO·765·4A2/OHRT3mg/L．A/O．1．2CODNaHCO3pHNH4ClKH2PO4．1.1COD/mg·L－1178～475326．5BOD5/mg·L－1125～230177．5NH4+—N/mg·L－134～50421TN/mg·L－145～6454．5PO43－—P/mg·L－14～65pH6～8．57．25MLSS、MLVSS、COD、NH4+—N、TN、NO3－—N、NO2－—N、TP、PO43－P、pHDONO3—N、NO2—N、PO43—P．1．345d．3HRT．ⅠHRT8hⅡHRT12hⅢHRT4h．35A2/O5～9h．22．1HRTCODHRTA2/OCOD2．2HRT8、12、4hCOD30mg/L．HRT4hMLSS1700mg/LCOD85%A2/OCOD、COD．A2/OCOD．COD．2HRTCODHRT8h3420mg/LCOD91．5%COD25mg/L3420mg/LCOD．HRT12hCOD92%．4262mg/LCOD94．1%COD20mg/L．7－9A2/O9．6hA2/OMBRA．3HRTCODCODHRT4～12hCOD．2．2HRT3HRT8、12hNH3—N2mg/L93%HRT4hNH3—N60%NH3—N15．2mg/L．A2/OHRTNH3—NHRT．HRT8h12hNH3—N96%97%97%HRT8h·865·27HRT．2A2/O8．5hHRT．Tzu－YiPai10A2/O9．5．3HRTTNHRTHRT4hTN40%11．HRT．4TN52%～53%54．9%．3COD．Li12LiCOD/TN≥880%．COD/TN5．9．4HRT2．3HRTTP5mg/LTPHRT．ⅠHRT8hTP0．374mg/L92．74%．ⅡHRT12hTP1．37mg/L74．66%．Ⅲ．HRT4hTP0．84mg/L84．19%．Tzu－YiPai10．5HRTTPHRT8hTP0．5mg/L《》GBl8918—2002BTP≤0．5mg/L．HRT12hTP．HRT4hTPTP．5HRT2．4HRT2CODHRT．HRT4h8hCOD89．33%91．95%HRT12hCOD93．11%．HRT4hMLSS1700mg/L3358mg/L．COD13－15．A2/OCOD．HRT4hNH3—N66．95%HRT8hNH3—N95．58%3HRT12hNH3—N97．43%．HRTNH3—N．HRTNH3—N．NH3—NTN．5．HRT．HRTTN·965·4A2/OHRTHRTNH3—N．HRT．2HRTTP．HRT4h8hTP84．19%82．74%．HRTTP．HRTTPTP．HRTHRTTPHRT5～8h．2HRTHRT=4hHRT=8hHRT=12h/mg·L－1/mg·L－1/%/mg·L－1/mg·L－1/%/mg·L－1/mg·L－1/%COD321．2534．2589．33321．0025．8891．95327．1322．5093．1143．3814．6966．9541．251．8495．5841．881．1197．43TN53．7531．3341．8654．8826．3951．9555．2525．8453．19TP5．250．8484．195．280．3792．745．461．3774．66MLSS17003420426231HRTCODNH3—N、TN、TP．NH3—N、TNHRTTPHRTHRT．HRT5～8h．2CODTN．3COD、HRT．HRT．．HRT8h．1．A2/OJ．2010332142－146．2WANGXLWANGSYPENGYZ．AnoxicBioliogicalPhos-phorusUptakeinA2/OProcessJ．ChineseJ．Chem．Eng．2005134516－521．3．A2/OJ．200930398－802．4PENGYZWANGXLLIBK．Anoxicbiologicalphosphorusuptakeandtheeffectofexcessiveaerationonbiologicalphosphor-usremovalintheA2/OprocessJ．ELSEVIER2006189155－164．5．A2/OJ．2010368193－194．6KONGXQWANGZTLIUYYetal．EfficiengcyanalysisofnitrogenandphosphousremovalbyinternalrecyclingprocesswithasuspendedcarrierJ．JournalofChongqingUniversity20083l1101－105．7．A2/OJ．2009361－64．8HANSYUEQYUEMetal．Effectofsludge－flyashce-ramicparticlesSFCPonsyntheticwastewatertreatmentinanA/OcombinedbiologicalaeratedfilterJ．BioresourceTechnol-ogy20091001149－1155．9DANIELLMCPOZZIetal．Removalofammoniumviaimul-taneousnitrificationdenitrificationnitrite－shortcutinasinglepackedbedbatchreactorJ．BioresourceTechnology20091001100－1107．10PAITY．ModelingnitriteandnitratevariationsinA2/OprocessunderdifferentreturnoxicmixedliquidusinganextendmodelJ．ProcessBiochemistry200742978－987．11NAMHULEEJHKIMMCW．Ehancedbiologicalnutrientsremovalusingthecombinedfixed－filmreactorwithbypassflowJ．WaterRes．20003451570－1576．12LIBK．AnoxicbiologicalphosphorusuptakeandtheeffectofexcessiveaerationonbiologicalphosphorusremovalintheA2/OprocessJ．Desalination2006189155－164．13NAMHULEEJHPARKTJ．Enhancedbiologicalnutrientsremovalusingthecombinedfixed－filmreactorwithbypassflowJ．Wat．Res．200041570－1576．14MURNLERTNEREKUBATLOOSDRECHTMetal．Anin-tegratedmetabolicmodelfortheaerobicanddenitrifyingbiologicalphosphorusremovalJ．Biotech．Bioeng．199754434－450．578·075·2731．GB5749－2006、、、、．3．2、ABBA．BCODMnAAUV254B．NH3—NNH3—N．4．3A、．B．4、、5－6．1．—J．2007411－3．2．UV254J．200224261－65．3．21M．2003．4．J．201137127－33．5．J．20103631．6./J.2011273304－307323.57015NOOPHANPSRIPIBOONSDAMRONGSRM．Anaerobicammoniumoxidationbynitrosomonasspp．andanammoxbacte-riainasequencingbatchreactorJ．JournalofEnvironmentalManagement200990967－972．·875·27