改良A2O工艺在小型污水厂的工程应用胡晓勇

A2/O11121．6500322．671600A2/O。1．0×104m3/d、A2/O《》GB18918—2002B。A2/OX703C1000－4602201122－0082－04EngineeringApplicationofImprovedA2/OProcessinSmall-scaleWastewaterTreatmentPlantHUXiao-yong1YANGWei1GENGYan-qiong1ANZheng-fu21．MunicipalDesignandResearchBranchYunnanDesignInstituteKunming650032China2．BureauofHousingandUrban-ruralDevelopmentofBinchuanCountyBinchuan671600ChinaAbstractThedesignandoperationofanimprovedA2/Oprocessinasmall-scalewastewatertreatmentplantYunnanProvinceareintroduced．Thetreatmentcapacityis1．0×104m3/d．Therawwastewateriscompletelydomesticsewage．Thetwo-sitesludgerefluxandpre-anoxictankareadoptedintheimprovedA2/Oprocess．TheeffluentqualitymeetsthefirstlevelBcriteriaspecifiedintheDischargeStandardofPollutantsforMunicipalWastewaterTreatmentPlantGB18918－2002andtheprocessiseconomicandfeasible．KeywordsimprovedA2/Oprocesstwo-sitesludgerefluxpre-anoxictanknitrogenandphosphorusremovalA2/O、、、。、、、12A2/OUCT、Phostrip、Biowin、VIP、A2/O3。、A2/O。11．0×104m3/d3．0×104m3/d、1。、A2/O《》GB18918—2002B。·28·2722201111CHINAWATER＆WASTEWATERVol．27No．22Nov．20111、Tab．1Designinfluentandeffluentqualitymg·L－1BOD5CODSSTNTPNH3－N120～200200～350120～30025～404～815～25160280200326202060202018152A2/O2.11。、、A2/O。。1A2/OFig．1FlowchartofimprovedA2/Oprocess2.2A2/OA2/OA2/O、A2/O2。。4。5。2A2/OFig．2FlowchartofimprovedA2/Oreactors33.1、、、。0．8m25mm1．5kW。321360m3/h100kPa22kW。0．82m5mm1．5kW。3．0m1．50m1．50m1．70m。1．10kW。0．37kW。0．5m3/d2．35m3/min0．06MPa。3.2A2/OA2/O25000m3/d2。41．6m×17．6m×5．0m。A2/O3。①、1。②2。③2420m3/h13kPa5．5kW、。④∶∶=12．5∶9∶7。3021m6m3/m·h。·38·．watergasheat．comA2/O27222A2/OTab．2DesignparametersofimprovedA2/Oreactors/℃15/kgBOD5·kg－1MLSS·d－10．12/kgBOD5·m－3·d－10．23/g·L－13．0/d12/%200/kgO2·h－1168/%100/h14．41HRT0．52h108m3HRT1．69h353m3HRT2．5h520m3HRT9．7h2022m33A2/OFig．3SchematicdrawingofimprovedA2/OprocessA2/O、3。3A2/O、Tab．3InfluentandeffluentqualityofimprovedA2/OprocessCODBOD5SS1/mg·L－1212425541．922．22．61/mg·L－1122415．80．180．35/%94．3495．2492．7362．2999．1686．592/mg·L－1148389742．314．73/mg·L－1132417．92．640．40/%91．2294．7495．8857．6882．0486．40。1、2。A2/OCODBOD591．2%、94．7%、PHA67。57．6%～62．2%。880%～90%NO－3－N、NO－2－NNO－3－N、NO－2－N6NO－3－N、NO－2－N86．4%。5。314．7～22．2mg/L2．64～0．18mg/L82．0%～99．1%。3.3。、4．0mA2/O、9．2m7．0m321100%211。3.42、。20m4．0m0．5m4．5m。1．05m3/m2·h0．636m3/m2·h。1N=0．37kW。3.56．0m×6．0m×5．0m4．0m。1m。。41．75hm22541．650．62/m30．30/m3。·48·2722．watergasheat．com5、A2/O。。SBR、A2/O。1．A2/OJ．2008341038－41．2．A2/OJ．2006222318－21．3．A2/OJ．201026179－82．4．A2/OJ．200675132－134．5．A2/OJ．20093212139－142．6．A－A2/OJ．20083112150－153．7．A2/OJ．2008242286－89．8．A2/[e-mail]櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵2011－07－30··20112011111—5。、、、。。、、、、、。。、DB100、HM600MH500PLCciwai、、RS2100、。GoodriveGoodrive300。。Goodrive100、Goodrive35、。———UPS。·58·．watergasheat．comA2/O2722