Fenton氧化在废水处理中的应用王娟

34EnvironmentalScience&Technology3411201111Vol.34No.11Nov.2011.Fenton[J].,2011,34(11):104-108.WangJuan,YangZai-fu.ApplicationofFentonoxidationtechnolo-gyinwastewatertreatment[J].EnvironmentalScience&Technology,2011,34(11):104-108.Fenton*201620FentonFenton、pH、、H2O2Fe2+、H2O2/Fe2+。Fenton。FentonX703.1Adoi10.3969/j.issn.1003-6504.2011.11.0211003-6504(2011)11-0104-05ApplicationofFentonOxidationTechnologyinWastewaterTreatmentWANGJuan,YANGZai-fu*SchoolofEnvironmentalScienceandEngineering,DonghuaUniversity,Shanghai201620,ChinaAbstractApplicationstatusquoofFentonoxidationtechnologyinwastewatertreatmentinrecentyearswerereviewed,includingreactionmechanismofFentonreactionandinfluencingfactorssuchastemperature,pHvalue,reactiontime,dosageofH2O2andFe2+,H2O2/Fe2+(mg/mg)aswellaskineticmodels.DeficiencyanddevelopmenttrendofFentonoxidationtechnologyinwastewatertreatmentwerealsodiscussed.KeywordsFentonoxidation;wastewatertreatment;influencingfactors;kineticmodel《》2011-01-012011－02－16(B604)(1986-)()[e-mail]*()021-67792551()[e-mail]。1964Fenton、、、、Fenton[1-4]。·OH2.8V。Fenton1COD、THMs[5-6]2、、、[7-10]3[11]。、Fenton、H2OH2O2·OH。－Fenton、－Fenton－Fenton[12-14]。1FentonFenton。HaberWeiss·OH。Fenton[12,15-19],1。11~17FentonFe2+、Fe3+、H2O211k(M-1S-1)1Fe2++H2O2→Fe3++·OH+OH-50~802Fe3++H2O2→Fe2++H++HO2·0.01~0.023Fe2++·OH→Fe3++OH-3.0×108~4.3×1084Fe3++HO2·→Fe2++O2+H+0.1×105~3.1×1055Fe3++O2·-→Fe2++O25×10762H++Fe2++O2·-→Fe3++H2O21.0×1077H++Fe2++HO2·→Fe3++H2O21.2×10682·OH→H2O24.2×109~5.3×1099HO2·+·OH→H2O+O21.0×101010O2·-+·OH→OH-·+O21.0×1010112HO2·→H2O2+O28.3×10512H++O2·-+HO2·→H2O2+O29.7×10713HO2·→O2·-+2H+1.58×105~7.9×10514O2·-+H+→HO2·1.0×101015·OH+H2O2→HO2·+H2O1.2×107~4.5×10716HO2·+H2O2→H2O+O2+·OH3.017O2·-+H2O2→O2+·OH+OH-·0.1318·OH+OC→intermediates→IP(CO2,H2O,etc)19·OH+OC→OP20Fe3++OP→Fe3+-complexes21[Fe(H2O)6]3++H2O圮[Fe(H2O)5OH]2++H3O+22[Fe(H2O)5OH]2++H2O圮[Fe(H2O)4(OH)2]+H3O+23[Fe(H2O)5OH]2+圮[Fe(H2O)8(OH)2]4++2H2O24[Fe(H2O)8(OH)2]4++H2O圮[Fe(H2O)7(OH)3]3++H3O+25[Fe(H2O)7(OH)3]4++[Fe(H2O)5OH]2+圮[Fe2(H2O)7(OH)4]5++2H2O1FentonTable1ThemainreactionsofFentonoxidation(23)~(25)pH3.0~7.0;OC:organiccon－tent,IP:inorganicproducts,OP:organicproducts。、·OHO2·-、HO2·。·OH1μS-OHa·OH[12,20-21]·OH18~20CO2、H2OFe3+Fe3+-。21~25Walling[22]FentonFe-COD。2Fenton2.1。FentonH2O2Santos[23]70℃、60minH2O225%30℃50℃H2O2H2O2。FentonLinRamirez[2224]Fenton30℃Ramirez[24]29℃Fen－tonGulkaya[27]Fenton25、40、50℃TOC89.1%、93.9%、94.4%50~70℃TOCSun[26]10B15~45℃Fenton(26)[27]。K=Aexp-ERT圮圮26K(min-1)AE(J·mol-1)R(8.314mol/K)T(K)。2.2pHpHFentonFentonpH3.0~5.0pH·OH[22,24]pH3.027·OH·OH28[30]。H2O2+H+→H3O2+27·OH+H++e-→H2O28pH5.0Fe2+Fe3+Fe3+H2O2Fenton2HO2·OH-1pH6.5~7.5Fe3+Fe(OH)3Fe2+·OH。Sun[26]pH3.5Burbano[27]pH3.0、3.6、5.0、6.37.0Fenton(MTBE)pH3.05.0MTBE90%10%Huang[29]FentonFenton10534pH3.0COD。pHFe-[12]。2.3Fenton。Mahiroglu[30]COD、、2minFenton2min2hKang[31]Fenton1min95%COD1min10%30min20%。Fenton、。2.4H2O2Fe2+H2O2Fe2+Fe2+/H2O2(FH)[32-33]。H2O2·OH1H2O2H2O2·OH15、16、17。H2O2Kang[31]H2O210mg/L100mg/LCOD22%17%[34]FentonpH3.0110mg/LFe2+/H2O20.082H2O2215.9mg/LCODH2O2COD(29)。Cr2O72-+3H2O2+8H+→2Cr3++3O2+7H2O29Fe2+·OHFe2+·OHFe3+3Fe2+3·OHFe3+。Fe2+/H2O2(FH)Mahiroglu[29]pH4.8FH1.65~4.12Tang[35]FH0.2~0.5Barbeni[36]FH100[37]FH0.16COD。FHCODCODCODFentonCODFe-。FentonCO2H2OCOD。2.5Fenton。Fenton·OHLinValderrama[22,38-39](30)。dCdt=-kCm30(30)Ctmk3132。lnCC0bb=-kt311C=kt+1C032kk′[H2O2]m[Fe2+]nexp-E/RT。Behnajady[40]-23Fenton33。CtC0=1-tm+bt33CttC0tmbFe2+/H2O2(FH)3031。log1bbb=Nlog(1/b)logFH+Ilog(1/b)34log1mbb=Nlog(1/m)logFH+Ilog(1/m)35NINIlog(1/b)log(FH)。10611FentonH2O2、Fe2+FH、Tt。33.1Fenton1Fenton·OHCl-、HCO3-、CO32-、Cl-Fe3+FeCl2+、FeCl2+、FeCl3Fenton。2FentonpH6.0~9.0《》GB8978-1996pH3Fe3+。3.21Fe3+Fe2+Fenton[39]·OH。2FentonFen－ton。4Fenton、、POPs。Fenton、pH、、FH。。[][1],,.Fenton[J].,2007,27(7):1101-1106.XieCheng,YanBo,WeiChao-hai,etal.RemovalofmajororganicpollutantsincokingwastewaterbyFentonoxidationpre-treatment[J].ActaScientiaeCircumstantiae,2007,27(7):1101-1106.(inChinese)[2].[D].:,2005.[3],.Fenton[J].(),2005,41(6):30-32.SunXiao-xia,WangJian-xin.TreatmentofexplosivewastewaterbyFentonreagent[J].JournalofLanzhouUni－versity,2005,41(6):30-32.(inChinese)[4],,.Fenton[J].(),2007,29(5):449-452.FangYan-fen,HuangYing-ping,GuoWei,etal.Studyontreatingsaponinwastewaterbyelectrolysis-Fentonoxidation[J].JournalofChinaThreeGorgesUniversity(NaturalSci－ence),2007,29(5):449-452.(inChinese)[5]TangWZ,TassosS.OxidationkineticsandmechanismsoftrihalomethanesbyFenton'sreagent[J].WaterResearch,1997,31(5):117-1125.[6]LuoW,AbbasME,ZhuLH,etal.Rapidquantitativede－terminationofhydrogenperoxidebyoxidationdecoloniza－tionofmethylorangeusingaFentonreactionsystem[J].AnalyticaChimicaActa,2008,629,I-5:1-5.(inChinese)[7],,.Fenton/[J].,2008,24(3):64-67.LiJun,WangLei,PengFeng,etal.ExperimentalstudyonFentonoxidation/coagulationprocessinsubsequenttreat－mentoflandfillleachate[J].ChinaWater&Wastewater,2008,24(3):64-67.(inChinese)[8],,.Fenton-[J].,2007,1(4):57-60.XuYing,ChenLei,ZhouJun-xiao.Treatmentofdyein－termediatewastewaterbyFentonoxidationandbio-chemi－calprocesses[J].ChineseJour