改良型一体化交替反应池工艺的生物除磷研究吴魏刚

215001A2/OSBR。。DPBCOD/TP、DO、MLSSSRT。、。X703A1000－4602201107－0026－04StudyonBiologicalPhosphorusRemovalinImprovedIntegratedAlternativeReactorWUWei-gangSuzhouDrainageCo．Ltd．Suzhou215001ChinaAbstractImprovedintegratedalternativereactorcombinesA2/OprocessandSBRprocessandachievesgoodnitrogenandphosphorusremovalwithcompactstructurearrangementandlowrunningcosts．CombinedwiththeproductionoperationofLoujiangWWTPinSuzhoutheoperationconditionsofthereactorforachievinggoodphosphorusremovalwereinvestigated．Theresultsshowthatadequateni-tratenitrogentoprovideelectronacceptorsforDPBsiscrucialtoimprovedenitrifyingphosphorusremovalefficiency．AtthesametimeCOD/TPratioininfluentDOinaerobictankMLSSandSRTaremainfactorsaffectingbiologicalphosphorusremoval．Inadditionfornon-idealphosphorusremovalefficiencyduetolow-loadoperationinrainyseasonthecorrespondingmeasuresareproposednamelyreducingaerationratedecreasingrecycleratiofromaerobictanktoanoxictankoraddingflocculantsforchemicalphosphorusremoval．Keywordsimprovedintegratedalternativereactorbiologicalphosphorusremovaldenitrif-yingphosphorusremovalgradualaeration1UNI-TANK、。、、。15、、/。8h4h1h。·62·27720114CHINAWATER＆WASTEWATERVol．27No．7Apr．20111Fig．1LayoutofintegratedreactorFEAABC。B。B、CCAB。B、C。BC。。2。2Fig．2Flowchartofimprovedintegratedreactor21250m3/dHRT23．3h、、1∶4．4∶7．4F/M0．14kg-BOD5/kgMLSS·d15d1．0kgMLSS/kgBOD5300%。2009GB18918—2002B。。22.1、、TPTP。TP4．22mg/L1．34mg/L68．2%0．35mg/L91．7%。TP74．4%25．6%。DPB。、350%O2NO－3－NO2。。NO－3－NNO－3－NPO3－4－P。NO－3－N＞5mg/LPO3－4－P＞60%NO－3－N3mg/LPO3－4－P40%。DPB。200%～300%。2.2COD/TPCOD/TP。3COD/TPTP。3COD/TPTPCOD/TP32112TP1．08mg/L0．2mg/LCOD/TP50TPCOD/TP＜50TP·72·．watergasheat．com277TPCOD/TP＞50TPCOD/TP＞80TP90%。TP。3COD/TPTPFig．3InfluenceofCOD/TPratiooneffluentTP2.3DODO。DODODONO－3－N。1DO。1Tab．1Influenceofaerationmodeonbiologicalphosphorusremoval1231#2#3#DO/mg·L－13．882．621．313．602．441．02DO/mg·L－10．980．760．230．260．91．22．52．4/%74．581．671．187．4/mg·L－1TP1．030．871．160．49TN10．49．9713．28．76NH3－N2．043．034．712．0910d1#、2#、3#、。DODO。DODOTPDO。。DODO61．85mDODO3．0～4．5mg/LDO2．0～3．0mg/LDO1．2mg/L。DODO。2.4SRT、MLSS。MLSSSRT5、8、10、12、14、16d。4。4MLSSFig．4InfluenceofSRTandMLSSinanaerobictankonphosphorusremoval45～8d8d·82·277．watergasheat．comSRT8d51．2%14d77．6%SRT14d。SRT10～14d。MLSS。MLSS。DO2～3mg/LMLSS2．5g/LTP0．5mg/LMLSS＜2．0g/LTP。SRTMLSSSSSRTMLSS。2.5。2C/P50%。DODOPHBPHB1。PHB。。2Tab．2Comparisonofindexesbetweenrainyandnon-rainyseasonDO/mg·L－1C/P/104m3·d－1TP/mg·L－1/%0．5～1．5≤0．540～8012～140．2～0．680～952．0～4．00．5～1．020～40≥140．8～1．565～80TP0．2～0．5mg/L≤2d。、TPB3～5d。3①。COD/TPCOD/TP＞80TP90%。②DODO。③C/PDO、。④。5～8dSRT10～14dMLSS2．5g/LTP0．5mg/L。1．J．200218783－85．1982－。[e-mail]2010－11－18·92·．watergasheat．com277