Carrousel氧化沟脱氮工艺的改造原建光

Carrousel454000Carrousel6、。、《》GB18918—2002A。TU992C1000－4602201824－0119－04ＲeconstructionofNitrogenＲemovalProcessinCarrouselOxidationDitchYUANJian-guangZHAOYing-chunHAOXiao-junKangdaEnvironmentalProtectionWaterCo．Ltd．Jiaozuo454000ChinaAbstractACarrouseloxidationditchsewagetreatmentplantwascomposedofsixcorridorscon-nectedatthebottom．Sincethecorridorwaslongandwithoutindependentanaerobicandanoxiczonestheeffluenttotalnitrogencouldnotmeetthestandardforalongtime．Throughequipmenttransformationandredistributionofbiologicalfunctionalareasnotonlythecirculationofmixedliquidatthebottomoftheoxidationditchwasguaranteedbutalsodiditprovideagoodnitrificationanddenitrificationenviron-mentformicroorganismswhichhadimprovedtheeffectofnitrogenremoval．TheeffluenttotalnitrogencouldmeetthefirstlevelAstandardinDischargeStandardofPollutantsforMunicipalWastewaterTreat-mentPlantGB18918－2002．KeywordsoxidationditchprocessreconstructiondenitrificationnitrogenremovalCarrousel、、、。、、1～3。5。27003～5。、、。A。12000200310×104m3/d90%10%30km228。COD≤350mg/L、BOD5≤150mg/L、SS≤300mg/L、NH3－N≤30mg/L、TP≤4mg/L、TN≤40mg/L·911·3424201812CHINAWATEＲ＆WASTEWATEＲVol．34No．24Dec．2018《》GB18918—2002B。1。1Fig．1Flowchartofwastewatertreatmentprocess2Carrousel5×104m3/d23780m3610．2m110m3．5mHＲT11．5h2。2Fig．2Planelayoutofoxidationditchbeforereconstruction2.1COD、NH3－N、TPA。。2.2HＲT9．5m1．1m48kW35cm、。90m2．0m/s35m、1m0．68m/s0．12m/s0．3～0．4m/s。。DO。6000m3HＲT11．5h7．6h。2018630、、A。、A15mg/L。。3、3.1、、1。B、A。1、Tab．1CurrentinfluentandeffluentqualityoftheWWTPmg·L－1CODBOD5SSNH3－NTNTP1958317821．633．32．8924．5416．82．7622．91．183.22017、2。22017、Tab．2InfluentandeffluentqualityoftheWWTPin2017mg·L－1123456789101112BOD59488898284777485697287955．24．13．53．63．84．44．64．43．93．33．54．0COD24820823420218516316915714915922523629．731．228．425．622．619．117．219．219．817．525．039．1SS21218019420819315015814012115521121721．121．317．716．814．310．810．09．612．111．826．230．3·021·3424．watergasheat．com2Continued123456789101112NH3－N22．918．524．022．622．024．519．219．722．119．219．225．33．342．894．063．132．952．751．751．932．201．292．953．82TN37．731．735．734．534．234．330．130．735．127．631．836．227．525．123．121．924．022．320．319．420．718．823．528．4TP3．572．983．443．103．022．742．712．422．352．312．963．031．511．241．350．860．871．331．231．151．271．161．061．182BOD5、TN、TP83、33．3、2．89mg/LBOD5/TN2．49BOD5/TP28．7。BOD5、TN、TP4、22．9、1．18mg/LTN、TP。TN、、TPBOD5TPA。3.3、HＲT11．5h。6～8W/m324000m3161000W7W/m3。5～775kgO2/h45kW、225000W。65%35%、78750W。。3.46×104m3/d。、81．8m5．5kW78r/min0．3m/s7W/m31#、2#、11#、12#1#、2#10#HＲT4．1h33、4、5HＲT6．0h62HＲT1．9h。6#7#7#DO。3。3Fig．3Layoutoffunctionalareaafteroxidationditchmodification4①0．3m/s。。②。、。3MLSS5000～6000mg/LSＲT18～22dDODO100%50%～75%。·121·．watergasheat．comCarrousel3424③3A。、3。3、Tab．3Influentandeffluentqualityaftermodificationmg·L－1CODBOD5SSNH3－NTNTP1908518422．737．13．04304．39．72．113．50．34516431338．8103．6210．324．92300。35d。0．22kW·h/m34．04/48．5/a。TNTN18．7mg/L1mg4mgBOD5TN13．5mg/L5．2mgTN20．8mg。1kg1．1kgBOD51．8t3100/t16．74/。TP。50mg/LTP0．35mg/L150t470/t7．05/。A。、。6、、、《》GB18918—2002A。。1．J．2008241184－88．QinWeifengLiSiminLiYanpingetal．Testandanaly-sisonflowpatternofmodifiedoxidationditchJ．ChinaWater＆Wastewater2008241184－88inChi-nese．2．CarrouselJ．2009251493－9498．YuanJianguangLiChengjie．SolutionofsludgedepositinmodifiedCarrousedoxidationditchJ．ChinaWater＆Wastewater2009251493－9498inChinese．3．J．201339348－50．LiuSenyanGaoShouyouHuangOuetal．DesignofthedenitrificationreconstructionprojectforanoxidationditchwastewatertreatmentplantJ．Water＆WastewaterEn-gineering201339348－50inChinese．1969－。[e-mail]2018－07－25·221·3424．watergasheat．com