UVFenton光氧化降解活性艳红染料废水的试验研究

:2006-08-02:(03-2-068):(1960-),,,,.:1671-2021(2007)01-0097-04UV/Fenton,,,(,110168):UV/FentonCOD,COD.,UV/Fenton.UV/Fenton,.,H2O2Fe2+pH.pH=3,30%H2O2214mL/L,Fe2+320mg/L,15min,COD99141%93121%.UV/FentonCOD,.,,pH.:UV/Fenton;X-3B;;:X703:A,,,,,,,,,.,,UV/Fenton[1-6]..UV/FentonFentonUV/H2O2,,UV/Fenton,Fenton.1111:UV-9100;pHS-29A;(220V,15W);.:30%H2O2(),FeSO47H2O().112,200mg/L,pH615,(COD)415mg/L,460,2102.113,pH,5%FeSO47H2O,,H2O2,,,.COD[7];200701231()JournalofShenyangJianzhuUniversity(NaturalScience)Jan.2007Vol123,No11J,=(A0-A)/A0100%.:,A0,A.2211UV/FentonFentonUV/H202.FentonUV/H202UV/Fenton,pH,[H2O2]112mL/L,Fe2+160mg/L,pH=3,t=15min.COD12.1COD2,COD.UV/H2O2.Fenton,COD,15min,COD30%.1,30min,UV/FentonCODFentonUV/H202,H2O2,H2O2Fe2+H2O2[8].12,30min,,,90%,COD,.,,,COD,COD.212H2O2,,.Fe2++H2O2Fe3++OH-+OH(a)2OHH2O2(b)OH+H2O2H2O+H2O(c)Fe3++H2O2Fe2++H2O+H+(d)H2O23.3H2O23,H2O2118mL/L,98159%,H2O2,.CODH2O2214mL/L,(84143%).,CODH2O2.H2O2,H2O2,OH,(a);OH,CODH2O2;H2O2,H2O2,,OH,H2O2,H2O2,H2O298()23OH,(b)(c);Fe3+,(d),,H2O2,COD.213UV/Fenton,.,,.4.4,,COD,COD.320mg/L,COD.,,OH,;,OH,COD;,COD.,,OH,[9].,,,COD,.214pHFentonOH,,Fe2+Fe3+,H2O2OH.pH.,pH,.pH5.,pH310COD5pH,pH310,,Fe3+Fe2+,(d),((a));,,,OH,,H+OH,OH[10],COD.pH310,pH,COD,pH610,COD,pH9,COD0.,pH,H2O2,OH,Fe2+,.3(1)UV/Fenton,,,.(2)H2O2Fe2+pH,.(3)UV/Fenton,.,COD;,.pH,.:[1],,.23:UV/Fenton99[J].,2006,32(2):30-31.[2],,.Fenton[J].,2004,24(6):726-729.[3]FerreroF.Oxidativedegradationofdyesandsurfac2tantintheFentonandphoto-Fentontreatmentofdyehouseeffluents[J].SocietyofDyersandColourists,2000,116(5):148-153.[4]PignatelloJJ.DarkandphotoassistedFe3+catalyzeddegradationofchlorophenoxyherbicidesbyhydrogenperoxide[J].Environ.Sci.Technol,1992,26(5):944-951.[5]KunaiA,HataS.Theroleofoxygeninthehydroxy2lationreactionofbenzenewithFentonsreagent.lgtracerstudy[J].J.Am.Chem.Soc.1986(108):6012-6016.[6]UtsetB,GarciaJ,CasadoJ,etal.Peral,replacementofH2O2byO2inFentonandphoto-Fentonreac2tions[J].J.Chemosphere2000(41):1187-1192.[7].()[M].:,1990.[8],,,.UV/Fenton[J].:,2006,22(4):441-445.[9],,,.Photo-Fenton[J].,2004,23(4):362-364.[10]TANGWZ,HUANGCP.2,4-dichlorophenoloxi2dationkineticsbyFentonsreagent[J].EnvironTechinol,1996(17):1371-1378.ExperimentalStudyontheDegradationofdyeingWastewaterbyUV/FentonOxidationProcessLIYafeng,CHENPing,LVChunhua,BANFuchen(SchoolofMunicipalandEnvironmentalEngineering,ShenyangJianzhuUniversity,Shenyang110168,China)Abstract:InordertosolvethedifficultproblemofremovingcolorandCODfromdyingwastewater,thetreatingeffectofUV/FentonoxidationprocessonchromaticityandCODfromreactivebrilliantreddyeingwastewaterhasbeenstudied.Throughthecomparativeexperiment,wecertifiedthattheUV/Fentonoxida2tionprocesswassuperiortootherdifferentoxidationprocessesintermsofthetreatingeffectofreactivebril2liantreddyeingwastewater.Themainoperatingconditionthatinfluencedthetreatingeffectofdyeingwastewaterhasbeenstudiedalso.AndthebestoperationconditionwasdeterminedbychangingthedosageofFeSO4.7H20orH2O2,pHintheexperiment.TheexperimentalresultsshowthatthedosageofH2O2Fe2SO4.7H20andthepHofwastewaterhadaverystrongimpactonthefinalremovalratesofdyeingwastewa2ter.AndtheremovalratesofchromaticityandCODareover99.41%and93.21%respectivelyin15minreactionundertheconditionofadding2.4ml/L30%H2O2,320mg/L5%FeSO4.7H20andpH=3.Fromtheexperimentalresults,wecanconcludethatUV/Fentonoxidationprocessisveryeffectiveandsuitableforthetreatmentofthedyeingwastewaterandoperatessimply.However,thelarge2scaleapplicationofUV/FentonoxidationprocessstillhascertainlimitationsuchasalimitedpHrangeandleakageofironregenera2tion.Keywords:UV/Fenton;reactivebrilliantredX23B;photooxidation;degradation100()23