21三维电极法降解活性染料废水

1,2,2(1.,226007;2.,200051):KE24BD,,1Cr18Ni9Ti,,,30V,6mA/cm2,6cm,800mg/L40min,99.5%,COD92.2%:;;;:TS199:A:1000-4017(2006)14-0001-04Wastewatertreatmentofreactivedyeswiththree2dimensional2electrodesmethodJINGXiao2hui1,2,CAIZai2sheng11.CollegeofChemistryandChemicalEngineering,NantongUniversity,Nantong226007,China;2.CollegeofChemistryandChemicalEngineering,DonghuaUniversity,Shanghai200051,ChinaAbstract:Anexperimentalstudyondyeswastewatertreatmentofreactiveblack2greenKE24BDwasconductedwiththree2dim2entional2electrodesmethod.FactorsinfluencingdecolorationrateandremovalrateofCODCr,suchasvoltage,electrolysistime,workingelectrodesspace,electriccurrentdensityandshapeofparticleelectrodewerediscussed.Theexperimentalre2sultshowedthatthedecolorationrateandtheremovalrateofCODCrfortheeffluentswithinitialconcentration800mg/Lofre2activedyecanreachabove99.5%and92.2%respectively,undertheconditionofstainlesssteel1Cr18Ni9Tiasananode,graphiteasacathodeandcylindricalactivatedcarbonasparticleelectrodes,thevoltagewas30V,theelectriccurrentdensitywas6mA/cm2,theworkingelectrodesspacewas6cm,andtheelectrolysistime40min.Keywords:dyeingandfinishing;wastewatertreatment;degradation;reactivedye0,,200270,[1],,,[2],,,,,[3],(Three2dimensionalElectrodes)[410],KE24BDCOD,:2006-01-17:,:S40030:(1960-),,,,,11.11,2(),,1,,,,,[11],O2,H2O2,1(2006No.14)OH[1214],::O2+2H++2eH2O2:O2+H2O+2eHO-2+OH-HO-2+H2OH2O2+OH-H2O2,OH::Mred+H2O2+H+Mox+OH+H2O:Mred+H2O2Mox+OH+OH-OH--eOH:Mred;MoxOHH2O2,,1.2JWY23032;TU21800PC;(Á150mm200mm);1Cr18Ni9Ti;;25cm2;1.3(1)24h,,10min,,,24h(2),,[15],(3),,1.4COD[6]/%=A0-AtA0100:A0;AttCODCr/%=CODCr0-CODCrtCODCr0100:CODCr0CODCr;CODCrttCODCr22.16cm;Á4mm6mm;6mA/cm2;40min;KE24BD,800mg/L,pH5,,222,30V,,,,COD,COD,,COD,COD30V,,,,,COD,,,30V2.230V,,,3;,2,433,,COD2(2006No.14)[11],,COD,,40min2.3,,,555,,,6cm2.430V,6cm,,COD(40min),666,COD,4mA/cm2,50%95.6%;6mA/cm2,99.6%,,,COD,92.3%,,,6mA/cm22.5,,,,,20min40min63.4%88.9%,COD22.8%29.9%;,,4mm,,777,1.2,COD,,3(2006No.14)3(1),KE24BD800mg/L,40min,COD99.5%92.2%(2),COD(3),(4),,:[1],.[J].,2003,(2):11.[2],,,.[J].,2004,5(4):27-31.[3]PanizzaM,BoccaC,CerisolaG.Electrochemicaltreatmentofwastewatercontainingpolyaromaticorganicpollutants[J].WaterResearch,2000,34(9):2601.[4]FockedeyE,LieedeAV.Couplingofanodicandcathodicreactionsforphenolelectro2oxidationusingthree2dimensionalelectodes[J].Wa2terResearch,2002,36:4169-4175.[5],,,.[J].,2004,5(6):43-47.[6],,.[J].,2002,29(5):34-37.[7],.[J].,2004,26(1):19-21.[8],,.[J].,2002,8(3):327-332.[9]YaXiong,etal.Anexperimentalinvestigationofchemicaloxygende2mandremovalfromthewastewatercontainingoxalicacidusingthree2phasethree2dimensionalelectrodereactor[J].AdvancesinEnviromen2talResearch,2002,7:139-145.[10]YaXiong,ChunHe,hansT.Karlsson.Performanceofthree2phasethree2dimensionalelectrodereactorforthereductionofCODinsimu2latedwastwater2containingphenol[J].Chemoshere,2003,50:131-136.[11],,.[J].,2003,4(2):28-76.[12].[M].:,1994,111119.[13].[M].:,1992,163165.[14],,$.[J].,2004,24(2):125126.[15],.[J].,2004,5(3):5962.[16].[M].:,1989,6.,20,:1.,:2.:;3.:;4.::1128(201107):021262211136021262211137:021262211449E2mail:[e-mail]:(2006No.14)