倒置A2O工艺生物脱氮除磷原理及其生产应用毕学军

倒置A2O工艺生物脱氮除磷原理及其生产应用毕学军(,266033)　张　波(,250012)　在阐述倒置A2O工艺技术原理的基础上,对倒置A2O工艺在实际生产中的应用及其脱氮除磷处理效果进行分析,实际生产应用结果表明,倒置A2O工艺是适合我国城市污水实际情况,具有简捷、高效特点的城市污水生物脱氮除磷新工艺。　倒置A2O工艺　脱氮除磷　技术原理　生产应用　　20～30,。A2O、UCT、VIP。、、、。1　A2O1.1　倒置A2O工艺的提出,,[1-3]:(1),。(2)。,,,。(3)[O][NO-3-N]。,A2O,。A2O、UCT、VIP,A2O、,,。1.2　倒置A2O工艺脱氮除磷原理与特点A2O1。,,,,。,,,。,。,β(PHB)。,,,。,,,。1　A2O　A2O　①,,,;②,;③-,“”,;④,,,,;⑤A2O,A2O,,,。29　　　20066243DOI:10.13205/j.hjgc.2006.03.009,,,,,,。2　A2O,8m3d,17m3d。70%,、、、,≥15℃,1。1　A2OmgLCODCrBOD5NH+4-N%%%650～110040～7093.7300～4808～1996.535～550.5～692.8TNPO3-4-PTP%%%65～9011～2080.04.5～120.4～1.091.56.5～180.5～1.591.8　　,10td,4～5td。80%,,≥15℃,2。2　A2OmgLCODCrBOD5NH+4-N%%%790～136045～8594.0380～6907.5～2398.155～851.5～1389.6TNPO3-4-PTP%%%89～13514～2582.65.5～150.45～1.2591.78.5～240.75～1.5592.9　　A2O,,(CODCr)、(TN)、(TP)90%、80%90%。,(VIPUCT),0.396(kW·h)m3,A2O,0.348(kW·h)m3,12%,,A2OVIPUCT12.3%,45%。A2O,,(CODCr)、(TN)、(TP)90%、80%90%。,(A2O),0.570(kW·h)m3,A2O,0.460(kW·h)m3,19%,,A2OA2O19.4%,43%。,A2O,,、,A2O,,75%。3　(1)A2O、、A2O,,、。(2)A2O,,,,。(3),A2O《》(GB18918-2002)B。(9)30　　　200662435　(4),(5)。,。,、4∶1,。3　(1),,()50%,(Zoogloeasp.)。(2)pH7～9pH,pH(pH=8.4)。,,。(3)NH4NO3,、4∶1,。[1]　,..,2001,1(2):50-54.[2]　,..,2004,24(1):41-45.[3]　,,..:,1990.[4]　AtlasRM.Microbialdegradationofpetroleumhydrocarbons:anenvironmentalperspective.Microb.,1981,45:180-209.[5]　LoehrRaymondC,WebsterMatthewT.Performanceoflongterm,field-scalebioremediationprocesses.JournalofhazardousMaterials,1996,50(2-3):105-128.[6]　BoopathyR.Factorslimitingbioremediationtechnologies.BioresourceTechnol.,2000,74:63-67.[7]　WalworthJames,BraddockJoan,WoolardCraig.Nutrientandtemperatureinteractionsinbioremediationofcryicsoils.ColdRegionsScienceandTechnology,2001,32(2-3):85-91.[8]　,,..,2004,25(1):91-94.[9]　,..,2001,4:179-184.[10]　CarrierePEP.Enhancedbiodegradationofcreosote-contaminatedsoil.WasteManagement,1995,579-583.[11]　HiggingsI.etal.OilInd.Microb.Ecosyst,proc.Meet.,1978:80-84.[12]　VanloockeR.etal.EnvironmentalStudies,1975,8(1):90-105.[13]　DibbleJ.T.etal.App.Environ.Microbiol,1979,37(4):729-735.[14]　BorgenR.etal.Biol.Sol.,1978,15(4):445-449.　　710055　13　　(029)82201514E-mail　[e-mail]2005-11-18(30)[1]　.A2O.,2000,16(7):11-15.[2]　..,1997,13(3):7-9.[3]　BoZhang.AnAnoxicAnaerobicAerobicProcessfortheRemovalofNitrogenandPhosphorusfromWastewater.JournalofEnvironmentalScienceandHealth,2000,35(10):1797-1801.　　266033　11　　(0532)85071238E-mail　[e-mail]2005-11-189　　　20066243Abstract　Intwodifferentoperatingmodesofcomplete-aerationormicro-aeration+anoxic+aeration,highCNratiodomesticwastewaterwastreatedbycouplingbioreactor.TheinfluentloadingofCODCrwas0.80～1.20kg(m3·d),concentrationsofNH+4-N,TNwereamong70～90mgLand75～110mgL,HRTandtemperatureinbioreactorwere8hoursand25℃respectively.ResultsshowthatthecouplingbioreactorkeepsaconstantCODCrremovalrateabove85%,aswellasremovalrateofNH+4-Nmorethan90%.Furthermore,testindicatesthattheremovalrateofTNishigherandtheproductionofsludgeislowerintheprocessofmicro-aeration+anoxic+aerationthantheotherone,withtheTNremovalefficiencyof81.1%,theaveragesludgeproductionrateof0.065kgMLSSkgCODCr.Keywords　couplingbioreactor,lowCNratio,lowDOandsludgereductionTREATMENTOFCOKINGWASTERWATERBYADOPTINGMICRO-ELECTROLYSIS-MEMBRANEBIOREACTORWangQingsheng　GuoChunyu　LiJingetal(26)……………………………………Abstract　Micto-electrolysisisusedtoremovepartialpollutantsincokingwastewater,thusraisingbiodegradabilityofthewasterwater,whichprovidesabasisforadoptingthemicro-electrolysismembranebioreactorprocess.Theresultsshowthatthemicro-electrolysistechnologynotonlyremovesmostofpollutantsinthewastewater,itsremovalrateisupto70%orso,butalsoimprovesitsbiodegradability.Keywords　micro-electrolysis,membranebioreactor,treatandcokingwastewaterTHEPRINCIPLEANDFULL-SCALEAPPLICATIONOFREVERSEDA2OPROCESSFORREMOVINGNITROGENANDPHOSPHORUSBiXuejun　ZhangBo(29)………………………………………Abstract　BasedonexpatiatingthetechnicalprincipleofreversedA2Oprocess,itisanalyzedtheeffectofremovingnitrogenandphosphorusinfull-scaleapplicationofreversedA2Oprocess.Thefull-scaleapplicationindicatesthatthereversedA2OprocessisadaptedtotherealconditionsofmunicipalwastewaterinChina,whichissimpleandconvenientandhigh-leveleffciency.Keywords　reversedA2Oprocess,removalofnitrogenandphosphorus,principleandapplicationLAB-SCALECONTINUOUSPURIFICATIONOFNITROGEN-TYPEEUTROPHICWATERBODYBYOENANTHEDECUMBENCESONFLOATING-BEDSZhengChong　ZhengShaokui　YangZhifengetal(31)………………………………………………………………………………………………………………………………Abstract　Lab-scalecontinuouspurificationofnitrogen-typeeutrophicwaterbodywasinvestigatedusingoenanthedecumbencesonfloating-bedsatawatertemperatureof12.0～18.7℃.TheCODCrremovalsaveraged14.0%±2.4%and6.0%±4.0%,respectively,whenHRTtransferredfrom3dto1d.ForTN,theyamountedto34.6%±5.8%and65.3%±5.4%.ForTP,theywere8.4%±1.6%and10.7%±2.1%.TheincreaseininfluentCODCrorTNloadingwasconcomitantwiththeincreaseinCODCrorTNremoval.Theempiricformulacanindividuallymatchwiththepollutantconcentrationalongwiththedistanceinthereactor.Keywords　freeflowsurfaceconstructedwetland;oenanthedecumbencesonfloating-bed,NOx-N