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当前位置:首页 > 商业/管理/HR > 质量控制/管理 > DO和曝停比对单级自养脱氮工艺影响试验研究方芳
DO,,,(, 400045):SBBRDOSBBR,4.,2,160mgL,30℃±2℃,pH7.8~8.2,HRT2d,DO0.8~1.0mgL,80%70%.DO()2.0~2.5mg·L-1()0.2~0.4mg·L-1,2h∶2h90%80%.SBBRDO,.SBBR.:SBBR;;DO;:X703.1 :A :0250-3301(2007)09-1975-06:2006-10-12;:2006-12-16:(50608071);(20050611010);(CSTC2005887266):(1973~),,,,,E-mail:xiduo@tom.comInfluenceofDOandAerationNon-aerationRatioonOne-stepSBBRCompletelyAutotrophicNitrogenRemovalProcessFANGFang,YANGGuo-hong,GUOJin-song,QINYu(KeyLaboratoryofThreeGorgesReservoirRegion'sEco-Environment,MinistryofEducation,ChongqingUniversity,Chongqing400045,China)Abstract:ToimprovetheperformanceofsingleSBBRcompletelyautotrophicnitrogenremovalsystemandstudytheinfluenceofaerationnon-aerationratioonit,fourreactorswereappliedintheexperiment.Theresultsshowedthatbothcontinuousandintermittentaerationsystemcouldimplementcompletelyautotrophicnitrogenremoval.Ontheconditionsofammoniumconcentrationround160mgL,temperature30℃±2℃,pHvalue7.8~8.2,HRT2daysandDO0.8~1.0mgL,ammoniumandtotalnitrogenremovalefficiencyreached80%and70%respectivelyinthecontinuousaerationsystem,andinthesystemofDO2.0~2.5(aeration)mg·L-10.2~0.4(non-aeration)mg·L-1,aerationnon-aerationratio2h∶2h,ammoniumandtotalnitrogenremovalefficiencyreachedabove90%and80%respectively.DOshouldbeadjustedinaccordancewithaerobicanaerobicratio,andmayberelatedtothebiomassanditsdistributionbetweenactivatedsludgeandbiofilm.Themechanismofnitrogenremovalwasalsodiscussed.Keywords:SBBR;one-stepautotrophicnitrogenremoval;DO;aerationnon-aerationratio NH+4-NN2,,,,DO[1~3],.SBBR.,,DO0.8mgL,pH8.0±0.2,30℃±2℃.200,85%,80%,40%,NH+4NO-2.[4~6],,.,.,,.2,DO.1 1.1 28920079 ENVIRONMENTALSCIENCEVol.28,No.9Sep.,2007DOI:10.13227/j.hjkx.2007.09.025SBBR(sequencingbatchbiofilmreactor),1,,30L;,;.1.;2.SBR;3.;4.;5.;6.;7.;8.1 Fig.1 Schematicrepresentationofthereactor 1.2 ,NH4HCO3,160mgL;KH2PO4 ;(EDTA5.0gL,CoCl2·6H2O1.6gL,ZnSO4·7H2O2.2gL,MnCl2·4H2O5.1gL,CuSO4·5H2O1.6gL,(NH4)6Mo7O24·4H2O1.1gL,CaCl2·2H2O5.5gL,FeSO4·7H2O5.0gL),2mL1L.1.1 Table1 ComponentsofsyntheticwastewaterCODmg·L-1NH+4-Nmg·L-1NO-2-Nmg·L-1TPmg·L-1pH25150~1700207.8~8.21.3 pH:Sension2pHISE;(SS)(VSS):[7];:N-1--[7];:-[7];COD:-;:LDOTMHQ10.1.4 4SBBR(1~4).,,2,.(0),,.pH7.8~8.2,30℃±2℃,HRT2d,2.2 1)Table2 Controlparametersofthereactor(h∶h)DOmg·L-11~70d91~155d0——2.0~2.51—0.8~1.00.8~1.022.5∶1.50.8~1.00.2~0.42.0~2.50.2~0.4+32∶20.8~1.00.2~0.42.0~2.50.2~0.4+41.5∶2.50.8~1.00.2~0.42.0~2.50.2~0.41)DO“”DODO;70~90d,DO2 ,155d.1~70d,DO0.8~1.0mgL,,.70~90d,DO,、:NH+4-NTN,NO-2-NNO-3-N,;NH+4-N,NO-2-NNO-3-N,.13,180%70%,31976 2890%80%.90d,3DO2.0~2.50.2~0.4mgL.,,24DO2.0~2.50.2~0.4mgL,1DO0.8~1.0mgL.DO,3:DO(1~70d)、DO(70~90d)DO(90~155d).3.,1~4:671mgL747mgL;1052mgL617mgL;728mgL844mgL;757mgL433mgL.COD25mgL.,pH7.8~8.2,30℃±2℃,DO2.0~2.5mgL,10mgL,6%.,.3 %Table3 Experimentresultsofeachreactor%DO(Ⅰ1~70d)DO(Ⅱ71~90d)DO(Ⅲ91~155d)130~5065~9060~8020~4050~7050~70225~5030~6030~9020~4025~5025~75325~6050~10090~10020~4035~8480~86420~3025~4030~5020~3020~3025~602.1 11NH+4-N、NO-2-N、NO-3-NTN2.2 1Fig.2 NitrogenconversioninNo.1reactor1~70d,,125mgL85mgL,126mgL95mgL,,5mgL,15mgL..49d55d,,,,27~28mgL.71~90d,50~25mgL70~40mgL,Ⅰ,,4mgL20mgL.DO,,.91~155d,DO,0.8~1.0mgL.,Ⅱ,30~60mgL40~80mgL.2.2 22NH+4-N、NO-2-N、NO-3-NTN3.3 2Fig.3 NitrogenconversioninNo.2reactor 1~70d,,80~110mgL,100~130mgL.37d,,150mgL,1.5mgL15mgL,42d71d,40mgL27mgL.71~90d,.91~155dDO,DO2.0~2.50.2~0.4mgL,104d,90%;130mgL70mgL,75%.19779:DO2.3 33NH+4-N、NO-2-N、NO-3-NTN4.4 3Fig.4 NitrogenconversioninNo.3reactor 1~70d,55~110mgL,80mgL,125mgL.71~90dDO,,98~38mgL110~50mgL.79d,,17mgL,(),25mgL.90d,DO2.0~2.50.2~0.4mgL.91~155d,DO2.0~2.50.2~0.4mgL,90%,81%~87%,DO,2h∶2h,DO2.0~2.50.2~0.4mgL0.8~1.00.2~0.4mgL.2.4 44NH+4-N、NO-2-N、NO-3-NTN5.5,4,3,DO0.8~1.00.2~0.4mgL1~70d,DO71~90d,110~120mgL,120~130mgL.DO2.0~2.50.2~0.4mgL91~155d,,108d100mgL,110d100~110mgL.1、23,4,2mgL,20mgL,10mgL.5 4Fig.5 NitrogenconversioninNo.4reactor 3 ,.2[4,8]:,NH+4NO-2;,NO-2,NH+4N2.1,2.、[9],,6:①NH+4NO-2NO-2NO-3,O2,,,DONO-2NO-3,DONH+4NO-2;②NH+4NO-2N2NO-2NO-3NO-2,,,DONO-2NO-3;③NH+4,NO-2NH+4,NH+4NO-2,NO-2N2NO-2;NH+4,NH+4.,DO、,、、,.Helmer[6],,O2,1978 28;DO0.7mgL,;DO5mgL,.[3],DO0.5~0.7mgL,90%,;DO0.2~0.3mgL,54.6%.21.5h∶2.5h、2h∶2h2.5h∶1.5h3,DODOSBBR.6 Fig.6 CompetitionofthemicroorganismsinCANON 1,80d,80%70%,.,DO0.8~1.0mgLSBBR,O2,O2,,DO———.,.2、34,DO0.8~1.00.2~0.4mgL,3;DO2.0~2.50.2~0.4mgL,3,2,4.DO2.0~2.50.2~0.4mgL,3DO0.8~1.00.2~0.4mgL25%~60%20%~40%90%80%.2h∶2hDO2.0~2.50.2~0.4mgL0.8~1.00.2~0.4mgL,2.5mgLDOSBBR.Sliekers[8]B.anammoxians.[10],,.,.2.5h∶1.5h2DO2.0~2.50.2~0.4mgL,90%60%,27mgL.,.,3.,2.DO0.8~1.00.2~0.4mgL2.0~2.50.2~0.4mgL,4,50%40%,2mgL10mgL.,DO1h,1.5h∶2.5h,DO2.0~2.5mgL0.5h,,,,,,.,4().,DOSBBR.,,,,DO.SBBRDO.,DO.,Hao[4,11]CANON19799:DO,DO,:0.2~0.7mm,DO.4 (1)4,160mgL,30℃±2℃,pH7.8~8.2,HRT2d,DO0.8~1.0mgL,SBBR80%70%;DO2.0~2.50.2~0.4mgL,2h∶2hSBBR90%80%.(2)DO,,,,DO,.(3)SBBR,.,.:[1]HippenA,RosenwinkelKH,BaumgartenG,etal.Aerobicdeammonification:anewexperienceinthetreatmentofwastewater[J].WaterScienceTechnology,1997,35:111~120.[2]SliekersAO,ThirdKA,AbmaW,etal.CANONandAnammoxinagas-liftreactor[J].FEMSMicrobiologyLetters,20
本文标题:DO和曝停比对单级自养脱氮工艺影响试验研究方芳
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