倒置A2O工艺处理混合污水的研究石明岩

A2/O11221．5100062．510163A2/O。A2/O、、、。8h1．0～1．5mg/L60%～100%20d15～30d。。A2/OX703A0517－6611201114－08537－03TechnologyCharacteristicsofTreatingMixedWastewaterbyInvertedA2/OProcessSHIMing-yanetalCollegeofCivilEngineeringGuangzhouUniversityGuangzhouGuangdong510006AbstractObjectiveThestudyaimedtodiscusstheroleruleofkeyprocessparametersfortreatingmixedwastewaterbyinvertedA2/Oprocess．MethodWiththeactualmixedwastewaterastheinletwatertheinvertedA2/OprocesswasusedtotreatthemixedwastewaterforthedenitrificationofthemixedwastewatersoastostudytheinfluencesofthehydraulicretentiontimeHRTdissolvedoxygenDOconcn．intheaerobicareaoutsiderefluxratioRsludgeageandwatertemperatureonthedenitrification．ResultTheextensionofHRTwasfavorabletothedenitrificationinthemixedwastewatertreatmentsystem．InordertogettheeffectivedenitrificationtheHRTshouldmaintain8hatleast．InrangofDOat1．0－1．5mgincreasingtheDOconcn．hadsompromotingeffectonthedenitrificationofmixedwastewater．InrangofRat60%－100%increasingRwasfavorabletothenitrificationanddenitrification．Inordertoensurethehighernitrificationratethesludgeageshouldbecontrolledatabove20d．Sludgeageof15－30dhadnoobviouseffectonthetotalnitrogenremoval．Therisingofwaterterperaturewasmorebeneficialtothedenitrificationandthehighwatertemperaturewasmorefavorabletothedenitrification．ConclusionThestudyprovidedthesci-entificbasisforproperlyhandlingtheexcrementandurinesewagerealizingthedischargingstandardforthemixedwastewaterofthemunicipalwastewatertreatmentplantandreducingthenitrogenpollutionofwaterenvironment．KeywordsReversedA2/OprocessMixedwastewaterNitrogenremovalHydraulicretentiontimeDissolvedoxygenconcn．Outsiderefluxrati-oSludgeageWatertemperature2009-K7-172010B0109000382009-Z-69-108C058。[e-mail]。2011-02-14blackwater。、1。2。。、。11．1DDA2/O1。。××=0．8m×0．6m×0．6m0．42m0．2m34、、122．0∶1．0∶2．5∶2．5。/。×=0．6m×0．2m0．50m0．25m0．055m3。1．2D1∶300。COD63．0～222．0mg/LNH3-N11．1～31．3mg/LTN14．4～35．5mg/LpH7．0～8．0。COD、NH3-NTN、－。DOpHHACHsc100CYBERSCAN510pH。1．2．3．4．5．6．7．8．DO9．10．I．II．III．IV．1V．2VI．。Note1．Waterpump2．Aircompressor3．Flowmeter4．Waterpumpofreturnedsludge5．Waterpumpofreturnedmixedliquor6．Dynamoelectricbeater7．Microporeaerator8．ApparatusofDO9．Sludgepipe10．OutletpipeworkⅠ．AdjustingtankⅡ．AnoxiczoneⅢA．NaerobiczoneⅣAerobiczone1Ⅴ．Aerobiczone2Ⅵ．Sedimentationbasin．1Fig．1TestdeviceJournalofAnhuiAgri．Sci．201139148537－85398645DOI:10.13989/j.cnki.0517-6611.2011.14.04622．129～33℃DO=1．5mg/L、R=100%、r=200%、SRT=15dHRT2。aHRTNH3-NbHRTTN。Notea．EffectofHRTonNH3-Nremovalb．EffectofHRTonTNremoval．2HRTFig．2EffectofHRTonnitrogenremoval2a、bHRT5．6～6．6h73．9%90．7%16．8%HRT8h96．9%6．2%NH3-N。TNHRTHRT6．6h8hTNHRTTN53．0%63．3%。5．6～8．0hHRT。HRT。HRT8h。2．2HRT8h、R100%、r200%、SRT15d28～32℃DO3a、b。DO1．0mg/L1．5mg/LNH3-N88．5%96．3%DO。5%。DODO3。TN。DO1．5mg/L0．5mg/L0．4%TNDODO4。aDONH3-NbDOTN。Notea．EffectofDOinoxiczoneonNH3-Nremovalb．EffectofDOinoxiczoneonTNremoval．3DOFig．3EffectofDOinoxiczoneonnitrogenremoval2．3HRT=8h、DO=1．5mg/L、r=200%、SRT=15d、29～33℃R60%、80%100%4ab。①R。。②R60%～100%NH3-N90%。60%R。③R60%100%5．6%11．1%。2．4、、、、83582011aRNH3-NbRTN。Notea．EffectofRonNH3-Nremovalb．EffectofRonTNremoval．4RFig．4EffectofRonnitrogenremoval5－7。15℃HRT=8h、DO=1．5mg/L、r=200%、R=100%1。1SRT20d1Table1EffectofSRTonnitrogenremovalSRTdNH3-NEffluentaverageconcentration∥mg/LAverageremovalefficiency∥%NH3-NEffluentaverageconcentration∥mg/LAverageremovalefficiency∥%155．083．114．154．9202．990．313．457．0301．894．012．759．5NH3-N90%SRT30d15dNH3-N10．9%。15～30dSRTTN54．9%59．5%。SRT。、8、。5Fig．5Effectofwatertemperatureonnitrogenremoval2．59－10。HRT=8h、DO=1．0～1．5mg/L、r=2、R=1SRT=15d6。。13～20℃12．2%4．6%。5～30℃10℃1TN。21～32℃12．0%30℃。11．3%。3①8h②1．0～1．5mg/L。1．5mg/L③60%～100%④20d。15～30d⑤。1．－D．2006．2．J．2007232492～94．3．J．20087355－59．864593583914A2/O33．1、。73。、7d。3．22-cellblock4～8-cell、4-cell、2-cell、。KobayashiH-35cellsB-25CD-14NakanoMPFmaturationpromo-tingfactor28～32hCD-140．8%52-cell6。、。7。8。。+49．4%。2。。9。22-cell。。1．、J．200634212－16．2．J．200636121013－1018．3．J．200410291－93．4KOBAYASHIMHIRAKOM．RathepatomaReuberH-35cellsproducea2-cellstage-specificinhibitorofthecleavgeofmouseembryosJ．BiologyofReproduction1996542364－370．5NAKANOHKUBOH．Rescueofmouseembryosfrom2-cellblocksbymi-croinjectionofmaturationpromotingfactorJ．FertilityandSterility20017561194－1197．6．J．199024175－180．7GANDOLFIFBREVINITALRECHARDSONLetal．characterizationofproteinssecretedbysheepoviductepithelialcellsandtheirfunctioninembryonicdevelopmentJ．Devlopment1989106303．8KAPNRPPJOHNSONLV．Selectivesequestrationofoviductalfluidgly-coprotionintheperivitellinespaceofandembryosJ．JExpZool1986238249．9．J．199983197－199．10．J．200627415－17．11．M41IBVJ．200924B12233－235．12．J．2010311檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪7－9．85394．M．199844－45．5HENZEM．M．2000．6LLGIKARAPINARKAPADANRUKIYEOZTURK．EffectofoperatingparametersoncolorandCODremovalperformanceofSBRSludgeageandinitialdyestuffconcentrationJ．JournalofHazardousMaterials2005123217－222．7CAKICIABAYRAMOGLUM．AnApproachControllingSludgeageintheActiviatedProcessJ．WatRes19952941093－1097．8．J．2006222363－66．9LEEDAESUNGJEONCHEOKJONGMOONPARK．Biologicalnitrogenremova