UVH2O2法处理焦化废水的试验研究张泽彪

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pH/NTU/ρ(COD)ρ(BOD5)ρ()ρ()9.051801280453814974915830,,,、,、,[1]。,,[2]。UV/H2O2。,UVH2O2,H2O2UV·OH,,[3]。UV/H2O2[4-5],UV/H2O2,,。11.1,1,《》[6]。1.2:(,GGZ-300);(,81-2);DODCr(,WMX-3-A);(HACH,2100);PH(ECTECH,PH510)。:H2O2CODCr、、,。UV/H2O21,2,1,3,1(1.,510006;2.,521011;3.,511400):。UV/H2O2,、H2O2、pHCOD。,COD1334mg/L,H2O245mmol/L,pH=11,60min,COD70%;H2O2pH,。:;UV/H2O2;COD;:X7:A:1674-4829(2010)01-0005-03:2009-11-10:(62060).:(1983-),,,,,、、,.ExperimentalStudyonTreatmentofCokingWastewaterbyUV/H2O2ProcessZHANGZe-biao,LIUQin-zeng,CUIMing-chaoAbstract:Thecokingwastewaterisakindofrecalcitrantwastewaterwithcomplicatecompositions.Inthispaper,experimentswerecarriedouttostudythetreatmentofcokingwastewaterbyUV/H2O2process.Theinfluencingfactors,suchasH2O2dosage,reactiontimeandpHvalueswereevaluatedfortheremovalefficiencyofCODandcolourityofcokingwastewaterbyUV/H2O2process.TheexperimentalresultsshowedthatforthewastewaterwithCODof1334mg/L,theremovalefficiencyofCODwouldbehigherthan70%undertheconditionsof45mmol/LH2O2,pH11andtheUVirradiationtimeof90min.TheincreaseofH2O2dosageorpHvaluewouldcontributetotheremovalofcolourity.Keywords:Cokingwastewater;UV/H2O2;COD;Colourity23120102EnvironmentalScienceandTechnologyVol.23No.1Feb.20101mg·L-1201024H2O2COD8060402005004003002001000COD0183645547290COD/%C(H2O2)/(mmol·L-1)/2COD100806040200COD/%020406080t/min○■△UVH2O2UV/H2O2△△△△△△△○○○○○○t/min6004002000020406080100◆□▲UVH2O2UV/H2O2/▲▲▲▲▲▲◆◆◆◆◆□□□□□100mL1UV/H2O21.3100mL,,120r/min。,1。,,4,COD、H2O2pH。22.1UV/H2O223C(H2O2)45mmol/L、、C(H2O2)45mmol/L+3,COD。2,H2O2COD;COD,27%;UV/H2O2,COD,,90min61%。,60minCOD,,COD。3,H2O2,,;,,;UV/H2O2,,。,H2O2UV(·OH),UV/H2O2。2.2H2O2UV/H2O2H2O2,60minCOD4。4,H2O2,COD,H2O2(54mmol/L),COD。UV/H2O2H2O2。H2O2·OH,;,H2O2,COD。H2O2,,H2O218mmol/L,36231UV/H2O2/80604020010008006004002000CODCOD/%0357911pH,H2O2。2.3pHUV/H2O25,pH3,5,7,9,11。45mmol/LH2O2、60min,COD5。5,pH,COD,,。H2O2·OHpH,①H2O2→HO2-+H+(pKa=11.6)[7]②HO2-+hv→·OH+O·-2[8],,·OH。[9-10],UV/H2O2,,。,pH,,pHUV/H2O2,,pH。3,,pHH2O2·OH,pHCOD。COD。3(1)UV/H2O2,COD1334mg/L,H2O245mmol/L,pH=11,60min,COD70%,。(2),H2O2。H2O2。(3)pHUV/H2O2,。[][1],.[J].,2009,22(4):25-27.[2],,.UV-Fenton[J].,2008,34(10):42-45.[3],,.UV/H2O2[J].,2004,36(12):1686-1689.[4],,.UV/H2O2[J].,2004,23(6):636-639.[5],.UV/H2O2/[J].,2008,21(1):48-50.[6],,.[M].3.:,2004.[7]LEGRINIO,OLIVEROSE,BRAUNAM.Photochemicalprocessforwatertreatment[J].ChemRev,1993(93)∶671-698.[8]SHENGYS,KUY,LEEKC.TheeffectoflightabsorbanceonthedecompositionofchlorophenolsbyultravioletradiationandUV/H2O2processes[J].WarRes,1995(29)∶907-914.[9]ABDULLAHFH,RAUFMA,ASHRAFSS.KineticsandoptimizationofphotolyticdecolorationofcarminebyUV/H2O2[J].DuesandPigments,2007(75):194-198.[10]POONCS,HUANGQ,FANGPC.DegradationineticsofcuprophenylyellowrlbyUV/H2O2/Ultrasonication(US)processinaqueoussolution[J].Chemosphere,1999(38)∶1005-1014.()5pHCOD《》7

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