非均相UVFe2Cu2Mn2YH2O2反应催化降解4BS染料废水

:025322468(2004)0621032207:X70311:AUVPFe2Cu2Mn2YPH2O24BS1,13,1,2(1.,310027;2.,310027):Na2YFe2Cu2Mn2Y,UVPFe2Cu2Mn2YPH2O24BS.,UVPFe2Cu2Mn2YPH2O24BS.,20min,4BS9317%.UVPFenton,UVPFe2Cu2Mn2YPH2O2(pH=1015)CODCr.4BS,UVPFe2Cu2Mn2YPH2O2.:Fe2Cu2Mn2Y;;;4BS;HeterogeneousUVPFe2Cu2Mn2YPH2O2catalystcatalyticdegradationof4BSZHENGZhanwang1,LEILecheng1,ZHANGZheng1,CENPeilin2(DepartmentofEnvironmentalEngineering,ZhejiangUniversity,Hangzhou310027;DepartmentofBioengineering,ZhejiangUniversity,Hangzhou310027)Abstract:ThehomogeneousUVPFentonsystemspHhadtobeadjustedtoalimitedrange(35)andthePhoto2Fentonprocessrequiresrecoveryofiron,sooperationcostinchemicalsandlaborhastobeadded.InordertowidentheapplicationofFenton2typeoxidationprocesses,thesedrawbackshavetobeovercomedbyimmobilizationofferricion.Investigationsshowedthatothertransitionmetalions,duetotheirvarietyofvalencecouldreplaceferricionandserveasalike2Fentonreagent.Furthermore,differentkindsoftransitionmetalionsandtheirratiointheUVPlike2Fentonprocesswillfavorablyaffectthedegradationofcontaminationsignificantly.Inthisarticle,theheterogeneousFe2Cu2Mn2YcatalystwasdevelopedbyimmobilizingFe2+,Cu2+,Mn2+onNa2Yzeolite.Thedegradationof4BShasbeeninvestigatedbytheheterogeneousUVPFe2Cu2Mn2YPH2O2process.TheresultsindicatedthattheheterogeneousUVPFe2Cu2Mn2YPH2O2processshowshighproficiencyincatalyticoxidizing4BS,whose4BSremovalratereached9317%whenthereactiontimeis20minunderthestandardexperimentalconditions(asdefinedinthearticle).Deferentfromthehomogeneousone,theheterogeneousprocessremainshigherefficiencyofremovalofCODCrand4BS,eveninalkalinesolution(pHreached1015).Kineticmodelwascorrelated,whichcouldprovidethedirectionofthepracticaltreatmentofsuchdeepcolordyeeffluents.Keywords:Fe2Cu2Mn2Ycatalyst;wastewatertreatment;heterogeneouscatalyticoxidation;4BS;kinetics:2003211212;:2004203219:(20176053):(1975),,;3,[e-mail],,.,.,[1].UVPFenton,,AOP,246200411ACTASCIENTIAECIRCUMSTANTIAEVol.24,No.6Nov.,2004.UVPFenton,pH(215515),Fe2+.Fe2+UVPFenton,,[25].,UVPFenton,.[6,7]Fe2+NafionUVPFenton,.Nafion.Fe2+Na2Y,Fe2YUVPFe2YPH2O2().,,Fe2Cu2Mn2Y,[8],.UVPTiO2.,,Langmuir2Hinshewood[9].UVPFe2Cu2Mn2YPH2O2,UVPTiO2().,,,UVPFe2Cu2Mn2YPH2O2.Fe2Cu2Mn2Y,UVPFe2Cu2Mn2YPH2O24BS.11.1Fe2Cu2Mn2Y[8]FeSO4,CuSO4,MnSO4Fe2+,Cu2+,Mn2+600,900,300mgL-1,pH410.2100gL-1100Na2Y,,300rmin-124h.pH410.,,3.,1106h,5505h.1UVPFenton1.2.3.4.5.6.7.Fig.1ReactorusedintheUVPFentonreaction112UVPFe2Cu2Mn2YPH2O2UVPFe2Cu2Mn2YPH2O21.4BS,1000mL4BS,Fe2Cu2Mn2Y,(600rmin-1),,,H2O2,..,.113H2O233016:UVPFe2Cu2Mn2YPH2O24BS4BS200mgL-1,106123mgL-1,CO2O2283128mgL-1.2molH2O21molO2,H2O2601198mgL-1.30%H2O21110mgmL-1,4BSH2O21181mL.1.44BS[10],PHS225pHpH[10].COD[10].22.1UVPFe2Cu2Mn2YPH2O24BS:4BS200mgL-11000mL,H2O24BS1(1Qth),0120g,pH=410,30,.Fe2Cu2Mn2YPH2O24BS.UV:4BS(200mgL-1)1000mL,pH=410,30,,H2O2.UVPFe2YPH2O2Fe2Y.Fe2Cu2Mn2Y4BS:4BS(200mgL-1)1000mL,0120g,pH=410,30,H2O2,.23.,Fe2Cu2Mn2YUVFe2Cu2Mn2YPH2O24BSCODCr.UVPFe2Cu2Mn2YPH2O2,4BSCODCr,20min,4BSCODCr9317%5917%.UVPFe2Cu2Mn2YPH2O2,UVH2O2Fe2Cu2Mn2Y.Fe2Cu2Mn2Y,0120g,,.24BSFig.2Thedegradiationof4BSbyvariousprosesses3CODcrFig.3TheremovalofCODCrbyvariousprocesses23,UVPFe2YPH2O24BSCODCrUVPFe2Cu2Mn2YPH2O2.3.[8].430124,Fe2Cu2Mn2YPH2O2UVPFe2Cu2Mn2YPH2O2,CODCr4BS.4BS,,CODCr,CODCr4BS.212H2O2H2O24BS4,CODCr5.,H2O2,4BSCODCr.20min,H2O24BS,CODCr.4H2O24BSFig.4Thedegradationof4BSbydifferentamountofH2O25H2O2CODCrFig.5TheremovalofCODCrbydifferentamountofH2O2213Fe2Cu2Mn2Y4BSCODCr67.0110gL-1,4BSCODCr;0120gL-1,4BSCODCr;0140gL-1,4BSCODCr.,0120gL-1.64BSFig.6Thedegradationof4BSbydifferentamountofcatalyst7CODCrFig.7TheremovalofCODCrbydifferentamountofcatalyst2.4pHpH4BSCODCr89.,UVPFe2Cu2Mn2YPH2O2(pH=1015)4BS53016:UVPFe2Cu2Mn2YPH2O24BSCODCr,UVPFe2Cu2Mn2YPH2O2.8pH4BSFig.8Thedegradationof4BSatdifferentpH9pHCODCrFig.9TheremovalofCODCratdifferentpH215UVPFe2Cu2Mn2YPH2O2Fenton(UVPFe2Cu2Mn2YPH2O2)4BS,.H2O2UVPFe2Cu2Mn2YPH2O2BOD5PCODCr,,,4BS.10BOD5PCODCrFig.10ThevarietyofBOD5vsCODCrdifferentamountofH2O2,H2O20125Qth,,10.10,,BOD5PCODCr0,,40min,BOD5PCODCr0132,.,UVPFe2Cu2Mn2YPH2O2,,4BS.11C4BS0r4BS0Fig.11Thevarietyofr4BS0atdifferentC4BS02164BS2mL(30%)H2O21000mL4BS,4BS,0120g,pH=410,30.10min,4BS,10min,r4BS0,4BSC4BS0,11.11,r4BS04BSC4BS0.C4BS0011012mmolL-1,r4BS0.C4BS0012mmolL-1,r4BS0.6301244BS,I,.UVPFe2Cu2Mn2YPH2O2,4BS,4BS4BS.,,.,.C4BS0012mmolL-1,.(CWAO)[11],:r4BS=kCaH2O2Cb4BS(1),r4BS4BS(mmolL-1min-1);C4BS4BS(mmolL-1);CH2O2H2O2(mmolL-1);abk.t=0,r4BS=r4BS0,CH2O2=CH2O20,C4BS=C4BS0,:r4BS0=kCaH2O20Cb4BS0(2),r4BS0C4BS0CH2O204BSH2O2.:ln(r4BS0)=ln(kCaH2O20)+bln(C4BS0)(3)12lnC4BS0lnr4BS0Fig.12TherelationshipbetweenlnC4BS0andlnr4BS0ln(C4BS0)ln(r4BS0),12.b=-017981,ln(kCaH2O20)=-616661,R2=019900.1,2,4,8mL(30%)H2O21000mL4BS,4BS160mgL-1,.10min,4BS,10min,r4BS0,CH2O20,13.ln(CH2O20)ln(r4BS0),14.14ln(kCb4BS0)=-710397,a=015586,R2=019798.k01241710-301244310-3,01243010-3.:r4BS=01243010-3C015586H2O20C-0179814BS(4)15.15,4BSC4BS0012mmolL-1,,UVPFe2Cu2Mn2YPH2O24BS.73016:UVPFe2Cu2Mn2YPH2O24BS13CH2O20r4BS0Fig.13TherelationshipbetweenCH2O20andr4BS014lnCH2O20lnr4BS0Fig.14TherelationshipbetweenlnCH2O20