Fenton氧化混凝协同处理焦化废水生物出水的研究

Fenton/,,,,(,100084):Fenton/,,:H2O2220mg/L,Fe2+180mg/L,415mg/L,015h,pH=7.COD4415%,35,.,,Fenton/.Fenton/,,,.:;Fenton/;;:X784:A:0250-3301(2006)11-2201-05:2005-04-08;:2005-12-02:(863)(2002AA601250):(1980~),,,,E-mail:[e-mail]CooperatedwithCoagulationofBiologicallyTreatedCokingWastewaterZUOChen-yan,HEMiao,ZHANGPeng-yi,HUANGXia,ZHAOWen-tao(StateKeyJointLaboratoryofEnvironmentSimulationandPollutionControl,DepartmentofEnvironmentalScienceandEngineeringTsinghuaUniversity,Beijing100084,China)Abstract:ThemethodofFentonoxidationcooperatedwithcoagulationforbiologicallytreatedcokingwastewaterwasconducted.Basedonbothoftheremovalperformanceandtheoperatingcosts,optimalreactionconditionwasproposed.OperatingatH2O2concentration220mg/L,Fe2+concentration180mg/L,PAMconcentration415mg/L,reactiontime015handpH=7,about4415%ofCODwasremovedandchromareached35.Inaddition,throughanalyzingofthechangesofmolecularweightdistributionandconstituteoforganiccompoundsineffluent,thepollutanttransformationrulewasputforward.TheresultshowsthattheeffluenttreatedbyFentonoxidationcooperatedwithcoagulationcanreachthewastewatersecondarydischargestandard,andtheoperationcostsareacceptable.ThisimpliesthatthetechniqueofFentonoxidationcooperatedwithcoagulationhaspromisinginpractice.Keywords:cokingwastewater;Fentonoxidationcooperatedwithcoagulation;distributionofmolecularweight;analyzingoforganiccompoundsconstituteCOD,,[1,2].A/OA/A/O.,,,.Fenton/[3,4],,,.11.1(),(A/A/O).1.1Table1Waterqualityofbiologicallytreatedcokingwastewater1)COD/mg#L-1220~270150/mg#L-12~1525/200~300801)GB8978-19961,,COD.1.21.2.12711200611ENVIRONMENTALSCIENCEVol.27,No.11Nov.,2006转载(,);H2O2(,30%);(,MW300@104,).1.2.2(1)Fenton/Fenton,5min,,COD;,Fenton,4min5min,Fenton.(2)[5,6].0145Lm,5@1043@1041@1046@1034@1032@1031@1035@102,,012MPa,COD,.1.2.3COD:HACHCOD(HACH).:(GB11903-89).:StirredCell(MILLIPORE)HM().,,GC/MS.22.1H2O2COD[7,8],H2O2Fe2+200mg/L160mg/L,.Fe2+160mg/L,H2O2.1Fe2+160mg/L,015h,pH=7,H2O2COD.H2O2,COD,.H2O2220mg/L,COD.H2O2,220mg/LH2O2.COD34%,50.2.2Fe2+CODH2O2220mg/L,Fe2+.2H2O2220mg/L,015h,pH=7,Fe2+COD.2,Fe2+COD,CODFe2+,Fe2+180mg/L,.Fe3+.180mg/LFe2+,COD36%,50.1H2O2CODFig.1InfluenceofH2O2concentrationontheCODandchromaremovalperformance2Fe2+CODFig.2InfluenceofFe2+concentrationontheCODandchromaremovalperformance2.3CODFenton..H2O2Fe2+Fe3+,Fe3+.,Fenton[9].,COD.220227中国科技论文在线=7,COD.3,COD,415mg/L,COD4415%,35,.3CODFig.3InfluenceofPAMconcentrationontheCODandchromaremovalperformance2.4COD4H2O2220mg/L,Fe2+180mg/L,415mg/L,pH=7,COD.4,,COD.30min,COD,30min,,.2h,COD53%,30.,30min.4CODFig.4InfluenceofreactiontimeontheCODandchromaremovalperformance2.5pHCOD,Fenton,.pH,Fenton.5H2O2220mg/L,Fe2+180mg/L,415mg/L,015h,pHCOD.5,Fenton,pH3,COD58%,30.,pH3.pH,pH=7,,pH=7.,pH=7.5pHCODFig.5InfluenceofpHontheCODandchromaremovalperformance2.6[10].,200mg/L,8mg/L,COD,Fenton/6.6,Fenton/COD(4415%)(37%)715,.Fenton/,COD.2.7Fenton/,220311中国科技论文在线[5].7Fenton/.2.,.1000COD5915%,50052%..2,Fenton/(1@104),COD2617%417%,(1@103),COD5915%8216%.Fenton,.Fenton/7Fenton/Fig.7MolecularweightdistributionofpollutanttreatedbyFentonoxidationcooperatedwithcoagulation2Fenton//%Table2ChangesinmolecularweightdistributionofpollutanttreatedbyFentonoxidationcooperatedwithcoagulation/%CODCOD1@10426174171@104~1@103131812181@10359158216,[2,11~14].7,4@103~1@103,COD619%0.Fenton,,4@103~1@103,.2.8Fenton/8216%,600,3.3Fenton/Table3AnalyzingoforganiccompoundsconstituteineffluenttreatedbyFentonoxidationcooperatedwithcoagulation/%/%21202172191331190511751126816811721119317321333119.,Fenton/,80195%,,11180%,7125%.220427中国科技论文在线:H2O2220mg/L;Fe2+180mg/L;415mg/L,015h,pH=7.COD4415%,35,.,Fenton/.2715%H2O22150/t,FeSO4500/t,12000/t.,118/t.--,3/t.,Fenton/.4(1)Fenton/:H2O2220mg/L;Fe2+180mg/L;415mg/L;015h;pH=7.COD4415%,35,.(2)Fenton/(5@104),(1@103),Fenton.4@103~1@103,Fenton.(3)Fenton/90%,Fenton.2,Fenton/,,.(4)Fenton/118/t,,,.:[1].[D].:,1995.[2]GuedesAMFM,MadeiraLMP,BoaventuraRAR,etal.Fentonoxidationofcorkcookingwastewater)))overallkineticanalysis[J].WaterResearch,2003,37:3061~3069.[3]MontserratP,FrancescT,JoseAGH,etal.RemovaloforganiccontaminantsinpaperpulptreatmenteffluentsunderFentonandphoto-Fentonconditions[J].AppliedCatalysisB:Environmental,2002,36:63~74.[4]ParkTJ,LeeKH,JungEJ,etal.RemovalofrefractoryorganicsandcolorinpigmentwastewaterwithFentonoxidation[J].WaterScienceandTechnology,1999,39:189~192.[5]VidalG,VidelaS,DiezMC.MolecularweightdistributionofPinusradiatakraftmillwastewatertreatedbyanaerobicdigestion[J].Bioresource,2001,77(2):183~191.[6]HenningK,SteffesHJ,FakoussaRM.Effectsonthemolecularweightdistributionofcoa-lderivedhumicacidsstudiedbyultrafiltration[J].FuelProcessingTechnology,1997,52:225~237.[7]KangYW,HwangKY.Effectsofreactionconditionsontheox