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。、。CASTCAST。[1]。、。CAST。11.11。CAST、0.36、5m31.75m30.35。。、。。6mm1mm50cm10cm。、201。、、0.5m20.25m3。15～28℃COD120～250mg·L-1BOD550～100mg·L-1NH3-N15～28mg·L-1TN18～30CAST12122120012.200092CASTpH。ANH3-N96.40%TN36.55%TP90.00%。CASTX703.1A1000-3770(2011)11-0096-0042011-03-16FZ20080381981－、E-mailhzpxh20081228@163.com1Fig.1ProcessflowdiagramCAST 3711201111TECHNOLOGYOFWATERTREATMENTVol.37No.11Nov.,201196DOI:10.16796/j.cnki.1000-3770.2011.11.024mg·L-1TP1.5～4.0mg·L-1pH7.0～8.2。1.220CAST4/、、、/1h。MLSS2500～4000mg·L-1DO0～1.0mg·L-1DO1.5～3.5mg·L-112～20d。CAST。、COD、BOD5、NH3-N、NO3--N、TN、TP、pH。。22.12.1.1NH3-NTN18.32、23.20mg·L-1。NH3-N0.1～1.5mg·L-10.66mg·L-1TN8～18mg·L-114.72mg·L-1。NH3-N、TN2。NH3-N1.5mg·L-196.40%98.99%92.75%。TN36.55%55.34%2.25%。217、18TN2.25%、4.44%NH3-NNO3--N19.05、19.02mg·L-1。[2]15～18。。。TN。15～20COD/TN10BOD5/TN2.5。TN。19TN30%。。2.1.2TP2.50mg·L-1TP0.05～0.4mg·L-10.25mg·L-1TPA。TP90.00%94.38%82.10%。TPTN3。3TP。TPTNTNTP。16TPTNNO3--N16～20TPTP。。2.22.2.14#AST、O2(g)/·MLVSS(kg)·hNH3-N(g)/·MLVSS(kg)·h。、4#2Fig.2Theweeklyvariationofdenitrificationwithcarbonsource048121620020406080100 /% COD/TN 05101520253TPTNFig.3TheweeklyvariationofTPandTNremoving048121620020406080100 /% 0.00.20.40.60.81.0TP/mg L CAST97CAST、4。、4#CAST5。4#CAST12.15、9.31g·kg-1·h-144.04、27.72g·kg-1·h-1。、4#CAST30.50%、58.93%。、4#CAST4.535、3.796g·kg-1·h-14#CAST19.03%。15BOD50.182kg·kg-1·d-1NH3-N、TN96.85%、31.05%TP91.64%。CASTBOD50.10kg·kg-1·d-1NH3-N。。CAST30.50%58.93%19.03%。NH3-NNO3--N12.35mg·L-1TN83.39%。2.2.2pHpHpH。1molNH3-NNO2--N2molHCO3-1gN7.14gCaCO3pH。OH-Fe2+Fe3+Fe3+[Fe2(OH)2]4+、[Fe3(OH)4]5+、[Fe5(OH)9]6+[3]pH。pH。pH7.3～8.2150～250mg·L-1pH7.53217mg·L-1pH7.82121mg·L-14#CASTpH7.14105mg·L-1。pH0.304#CASTpH0.40。pHpHpH。2.2.3+CAST6。6Fe3+。Fe3+。。6Fig.6Sludgeobservingunderamicroscope6a6b4#CAST0.00.51.01.52.02.53.03.54.04.50102030405060708090 mgh44#CAST、Fig.4Thecurveofoxygenconsumptionendogenousrespirationofsemi-worksand4#CASTtests0.00.20.40.60.81.01.21.41.6024681012NO -Nmg h 5、4#CASTFig.5Thelinearequationsofrateofnitrificationofsemi-workstestsand4#CASTtests371198、、、。4#CAST。2.2.4CAST。TPTN、NO3--N。Fe2+Fe3+、。Fe3+[Fe2(OH)2]4+、[Fe3(OH)4]5+、[Fe5(OH)9]6+TP。。3CAST、。、、CAST30.50%、58.93%、19.03%。NH3-N、TN96.04%、36.55%。pHpH。TP90.00%。。[1],,,.CAST[J].,2009,12():150-153.[2]NoubactepC.AcriticalreviewontheprocessofcontaminantremovalinFe0-H2Osystems[J].EnvironTechnol.,2008,29(8):909-920.[3].[M].:,2008.THESTUDYONSTRENGTHENINGDENITRIFICATION＆PEPHOSPHORIZATIONOFCASTPROCESSWITHCATALYZEDIRONINNERELECTROLYSISZhouPengfei1,2,YuYiping1,MaLuming2（1.ZhenjiangCityWaterIndustryCompany,Zhenjiang212001,China;2.CollegeofEnvironmentalScience&Engineering,TongjiUniversity,Shanghai200092,China）Abstract:Semi-workstestsresearchedondisposingmunicipalsewageinremovalofnitrogenandphosphoruswiththecoupledsystemofthecatalyzedironinnerelectrolysisandCASTprocesshadbeencarriedout.Theresultsshowedthatthecatalyzedironinnerelectrolysisengenderedelectricfieldanditsproductscouldimprovethecharacteroftheactivatedsludge,enhancetheactivityoftheactivatedsludge;acceleratethereactionrateofmicroorganisms,anddecreaseeffectofpHwithalkalinityconsumedofnitration.Sothatitcouldenhancebiologicaldenitrification,andcombinethatenhancedbiologicaldephosphorizationandchemicdephosphorization;Sothattheremovingratesofnitrogenandphosphoruswereimproved.Whenallofthewaterqualityindexesreachedone-levelAofthenationaleffluentstandard,removingrateofammoniaandtotalnitrogenwere96.40%and36.55%,respectively,andtheremovingrateofphosphoruswas90.00%.Keywords：catalyzedironinnerelectrolysis;CASTprocess;reactionrate;municipalsewage;denitrification＆pephosphorization;couplingsystemCAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!99