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23120102POLLUTIONCONTROLTECHNOLOGYVol.23,No.1Feb.,2010Fenton- 1, 2, 1, 1, 1, 1(1.江苏省环境科学研究院,江苏南京 210036;2.环境保护部南京环境科学研究所,江苏南京 210042) :Fenton、、Fenton-,,Fenton-。,Fenton:H2O25mL/L,FeSO4·7H2O200mg/L,2g/L,pH=4.0,20min。,COD82.6%,《》(GB8978—1996)。:Fenton;;:X784 :AStudiesontheTreatmentofCokingWastewaterafterBiochemicalProcessesbyFentonOxidationCoupledwithActivatedCarbonAdsorptionTUYong1, ZHANGHong-ling2, ZHANGLong1, LIUGuang-bing1, XUMing1, ZHANGMin-jian1(1.JiangsuProvincialAcademyofEnvironmentalScience,Nanjing,Jiangsu210036,China; 2.NanjingInstituteofEnvironmentalScience,MinistryofEnvironmentalProtection,Nanjing,Jiangsu210042,China)Abstract:Thetreatmenteffectsoffentonoxidation,activatedcarbonadsorptionandfentonoxidationcoupledwithactivatedcar-bonintreatmentofcokingwastewaterafterbiochemicalprocesswerestudied.Thebestconditionsofthetreatmentprocesswerealsoanalyzed.TheresultsindicatedthattheselectedconditionsofreactionstotreatofcokingwastewaterwereattheconcentrationofH2O2=5mL/L,FeSO4·7H2O=200mg/L,activatedcarbon=2g/L,pH=11,thereactiontime=20min.TheCODremovalratecouldreach82.6%underthisoptimumconditions,andallparametersoftheeffluentcouldmeettherequirementsofthenation-aldischargestandardI(GB8978—1996).Keywords:fentonoxidation;activatedcarbonadsorption;cokingwastewater:2009-08-25;:2009-10-09: (1977—),,,,,。 、,,、、、。,A/OA/A/O,,,,[1]。,[2]、、Fenton[3,4]。、,。,Fenton[5]、[6]、[7]、(atrazine)[8]。Fenton,Fenton[9]、Fenton[7]、Fenton/O3[10]、-Fenton[11]。Fenton,Fenton:20102 .Fenton-·27 ·,Fenton,Fenton,Fenton,COD,。Fenton、Fenton-,Fenton-,。1 1.1 实验水样,、-。1。1 Tab.1 Characterizationofexperimentwastewater COD/(mg·L-1)470100200/250～3005080/(mg·L-1)12.4615251.2 分析方法COD:,GB11914—89;:,GB11903—89;:,GB7479—87。1.3 实验方法(1)Fenton:1000mL,H2O2(30%)5mL、FeSO4·7H2O0.2g,pH=3.0,15min,60r/min。Ca(OH)2pH=8.0,15min,COD、、。(2):1000mL,2g,15min,60r/min。15min,COD、、。(3)Fenton-:1000mL,H2O2(30%)5mL、2g、FeSO4·7H2O0.2g,pH=3.0,15min,60r/min。Ca(OH)2pH=8.0,15min,COD、、。(4)Fenton-:,(3)。Fenton-,:1000mL,Fenton,pH,60r/min。Ca(OH)2pH=8.0,15min,COD。2 2.1 几种方法的比较2:Fenton,COD、。Fenton(28%);Fenton,Fenton;,,,,,。2 Tab.2 Resultscomparisonofeachexperimentalmethods 1234COD/(mg·L-1)169.2191.7121.3296.4/25301815/(mg·L-1)9.866.357.625.842.2 H2O2投加量与COD去除率的关系2g、FeSO4·7H2O0.2g、pH=3.0、15min,H2O2COD1。H2O2,COD,H2O25mL/L,COD。,H2O25mL/L。2.3 Fe2+投加量与COD去除率的关系2g、H2O25mL、pH=3.0、15min,FeSO4·7H2OCOD2。(--),Fe2+,FeSO4·7H2O,·28 · .Fenton-2311 H2O2CODFig.1 InfluenceofH2O2dosageonCODremovalrateFenton。FeSO4·7H2O,COD,FeSO4·7H2O200mg/L,COD,,FeSO4·7H2O200mg/L。COD70.32%。2 Fe2+CODFig.2 InfluenceofFe2+dosageonCODremovalrate2.4 活性炭投加量与COD去除率的关系H2O25mL、FeSO4·7H2O0.2g、pH=3.0、15min,COD3。,COD,2g/L,COD,,2g/L。COD79.2%。2.5 反应时间与COD去除率的关系2g、FeSO4·7H2O0.2g、H2O25mL、pH=3.0,COD4。,COD。3 CODFig.3 InfluenceofactivatedcarbondosageonCODremovalrate20min,COD,COD76.1%。4 CODFig.4 InfluenceofreactiontimeonCODremovalrate2.6 pH值与COD去除率的关系2g、FeSO4·7H2O0.2g、H2O25mL、15min,pHCOD5。pH,COD,pH4.0,COD。,pH=4.0。COD76.42%。,Fenton-:H2O25mL/L,FeSO4·7H2O200mg/L,2g/L,pH=4.0,20min,COD68.24mg/L,12,3.81mg/L,。20102 .Fenton-·29 ·5 pHFig.5 InfluenceofpHonCODremovalrate3 (1)Fenton,Fenton,。(2)Fenton-,:H2O25mL/L,FeSO4·7H2O200mg/L,2g/L,pH=4.0,20min,,COD82.6%,。[][1] , ,,./[J].,2005,5:31-34.[2] ,,.[J].,2009,35(3):20-21.[3] , ,,.[J].,2009,35(1):112-115.[4] ,,,.、Fenton[J].,2006,28(7):508-511.[5] BautistaP,MohedanoAF,GilarranzMA,etal.ApplicationofFentonOxidationtoCosmeticWastewatersTreatment[J].HazardousMaterials,2007,143:128-134.[6] MecozziR,PalmaLD,PiloneD,etal.UseofEAFDustasHeterogeneousAtalystinFentonOxidationofPCPContaminatedWastewaters[J].HazardousMaterialsB,2006,137:886-892.[7] KurtU,ApaydinO,GonulluMT.ReductionofCODinWastewaterfromanOrganizedTanneryIndustrialRegionbyE-lectro-FentonProcess[J].HazardousMaterials,2007,143:33-40.[8] ChuW,ChanKH,KwanCY,etal.DegradationofAtrazinebyModifiedStepwise-Fenton'sProcesses[J].Chemosphere,2007,67:755-761.[9] ZhengH,PanY,XiangX.OxidationofAcidicDyeEosinYbytheSolarPhoto-FentonProcesses[J].HazardousMateri-als,2007,141:457-464.[10] DuY,ZhouM,LeiL.KineticModelof4-CPDegradationbyFenton/O2System[J].WaterReserch,2007,41:1121-1133.[11] BoussahelaR,HarikbD,MammaraM,etal.DegradationofObsoleteDDTbyFentonOxidationwithZero-valentIron[J].Desalination,2007,206:369-372.·动态与简讯·、、,、,。,,,。15,14～18,,,。,,C18。,,,,。,,,、。,,,,200～300。,,60,。,。