FeC微电解法H2O2组合工艺处理硝基苯废水的实验研究

33320083ENVIRONMENTALSCIENCEANDMANAGEMENTVol133No13Mar.2008:2007-10-08:(1980-),,,,:1673-1212(2008)02-0123-04Fe-C+H2O2(,210048):,,H2O2,H2O2Fe2+Fenton,OH,OH,,,:;;:X703.1:AStudyonTreatmentProcessbyFe-CMicro-ElectrolysisandH2O2OxidationProcessforNitrobenzenWastewaterZhaiJian(DepartmentofAppliedChemistry,NanjingCollegeofChemicalTechnology,Nanjing210048,China)Abstract:Nitrobenzenewastewaterwaspretreatedbyanironscrapprocess,whichresultedintheconversionofnitrobenzenetoaniline.FentonreagentoxidationprocessfornitrobenzeneandanilinedegradationwasinvestigatedbyusingFe2+ascatalystandH2O2asoxidant.ThebenzeneringinthenitrobenzenetoanilinewasoxidizedanddecomposedbyOH.Keywords:Fe-Cmicro-electrolysis;catalyticoxidation;nitrobenzenwastewater,,,,,,2.8VOH[H]Fe2+,,,H2O2Fe2+Fenton,,11.1()CODcrH2O2(30%)FeSO47H2O()1.2(1)1(mgL-1)()CODcr(mgL-1)pH753001100561.3pH,,,30%H2O2,,pH,32133320083Fe-C+H2O2Vol133No13Mar.20081.4COD,CODcr:CODcr=(1-CODcrCODcr0)100%:CODcr0,CODcr22.1CODcrH2O22%,115h,1h,pH3,,,CODcr(1)1COD,,,,,FeC,1,Fe/C2:1CODcr95%2.2H2O2CODcrpH3,2:1,1.5h,1h,CODcr(2)2H2O2CODH2O2,CODcr,H2O2,H2O2,OH;H2O2,H2O2Fe2+Fe3+,Fe3+,H2O2OH,H2O2CODcr[1],H2O22%2.3CODcrpH3,2:1,H2O22%,1h,CODcr,,,,Fe2+,Fe3+,1.5h(3)3COD2.4pHCODcr2:1,H2O22%,1.5h,1h,pHCODcr(4)4pHCODpH,,42133320083Fe-C+H2O2Vol133No13Mar.2008pH,,;pH,pH,pH33,5,,80BV,COD100mgL-1,54,COD,(6)6(Fe:C=2:1,pH=3,CODcr1100mgL-1)6,COD,:-dcdt=kc2:cCOD,mgL-1t,mink,Lmg-1min-1:1C=1C0+kt:C0COD,mgL-1COD110-5,Lmg-1min-17:CODr=0.9336,0.05rmin=0.878r,,0.05CODCOD:1C=1C0+110-5tC=C01+110-5C0t,Lmg-1min-1;CCOD,mgL-1;t,min;C0COD,mgL-17COD55.1(89),,,5.2(1):2:1,pH3,H2O22%,1.5h,1h,CODcr95%(2):,,6,H2O2Fe2+Fenton52133320083Fe-C+H2O2Vol133No13Mar.200889:[1],,,.Fenton[J].,2000(5):93-96.[2],,.[J].,2005,31(5):58-61.621