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。、、COD、、[1-2]。Fenton、·OHCOD[3]。FentonFe2+H2O2、[4]FentonUV/Fenton[5]、Electric/Fenton[6]、-Fenton[7]。Fenton。Fenton。11.1pH7.2COD1024mg·L-1、、。147～177μm1。1.25B-1COD、PHS-3CPH、CARY50Probe-。[8]H2O2[9]。1.3500mLFeSO4·7H2OH2O2。pH330min1w/%Tab.1Chemicalcompositionofflyash(w/%)SiO2Al2O3Fe2O3CaOMgOK2ONa2O58.9628.943.511.700.742.240.52Fenton1212111.4670012.430074FentonCOD。COD。、pH、H2O2Fe2+。30g·L-1pH=3H2O2100mmol·L-1Fe2+280mg·L-1180minH2O286.6%COD90.17%。FentonX786A1000-0770(2010)12-0059-0042010-03-051978－13886189212E-mailzhuxinfeng@hncj.edu.cn3612201012TECHNOLOGYOFWATERTREATMENTVol.36No.12Dec.,201059DOI:10.16796/j.cnki.1000-3770.2010.12.018COD。22.1FentonFe2+224mg·L-1、H2O280mmol·L-1、pH3、40g·L-13、Fenton+FentonFentonCODCOD1。1FentonCOD14.57%51.31%FentonCOD74.85%。Fenton。[10-11]。FentonFe2+、Fe3+2。2Fe2+H2O2FentonFe3+Fe3+。。60min138.9mg·L-1。Fe2+Fe3+。[12]Fe3+FentonH2O2H2O2Fe3+·OH。Fenton、H2O2Fenton。[13]。3H2O2H2O2·OH。2.2CODFe2+224mg·L-1、H2O280mmol·L-1、pH3、180min5、10、20、30、40、50g·L-1COD4。4COD。30g·L-1COD30g·L-1。020406080100120140160180200050100150200250 mg L /t2Fe2+Fe3+Fig.2TheconcentrationchangesofFe2+andFe3+inreaction0204060801001201401601802000102030405060708090100 /t1CODFig.1CODdegradationindifferentsystems020406080100120140160180200304050607080 /min3H2O2Fig.3ThedecompositionrateofH2O2beforeandafterflyashadded3612602.3pHCODFentonFe2+H2O2·OH。Fe2+224mg·L-1、H2O280mmol·L-1、30g·L-1、180minpH2、3、4、5、6pHCOD5。5pHCOD。pH3CODpHCOD。[14]pH·OHpHH+Fe3++H2O2→Fe2++HO2+H+Fe3+Fe2+HO2·pHFe2+、Fe3+Fenton。pH·OHFe2+Fe3+[15]。pH3。2.4H2O2CODFe2+224mg·L-1、30g·L-1、pH3、180minH2O240、60、80、100、120、140mmol·L-1H2O2COD6。6CODH2O2H2O2100mmol·L-182.31%H2O2。H2O2·OH。H2O2H2O2·OHH2O2。H2O2100mmol·L-1H2O2100mmol·L-1H2O2H2O2H2O2100mmol·L-1。2.5Fe2+CODH2O2100mmol·L-1、30g·L-1、pH3、180minFe2+56、112、168、224、280、336mg·L-1Fe2+COD7。7Fe2+H2O2204060801001201401605060708090 H O mmolL 4050607080906H2O2CODFig.6TheeffectofH2O2dosageonremovalofCODofcokingwastewater010203040506050556065707580/mg L 4CODFig.4TheeffectofflyashdosageonCODremovalrate123456750556065707580pH5pHCODFig.5TheeffectofinitialpHvalueonCODremovalrate7Fe2+CODFig.7TheeffectofFe2+dosageonCODremovalrate4080120160200240280320360405060708090100 H O mmolL 405060708090100Fenton61STUDYONTHETREATMENTOFCOKINGWASTEWATERBYHETEROGENEOUSFENTONPROCESSCOMBINEDWITHFLYASHZhuXinfeng1,2,ZhangLeguan1,2,LiZhaohui1,ZhuPanmin1（1.HenanUniversityofUrbanConstruction,Pingdingshan467001,China；2.SchoolofEnvironmentalScience&Engineering,HuazhongUniversityofScienceandTechnology,Wuhan430074,China）Abstract:TheheterogeneousFentonprocesscombinedwithflyashwasestablishedfortreatmentofcokingwastewater.TheratioofCODremovalinthesynergicprocesswashigherthantheremovalratiobothFentonprocessandflyashabsorptionprocess.AbsorptionoforganicmoleculesandFe2+increasedtheCODremovalinwastewater.Someimportantaffectingfactorswerediscussedinthisprocess.TheresultsshowedthattheratioofCODremovalreachedto90.17%after180minundertheoptimizedconditions(thedosageofashfly:30g·L-1,initialpHvalue:3,thedosageofH2O2:100mmol·L-1,theconcentrationofFe2+:280mg·L-1).Keywords：heterogeneousFenton;flyash;cokingwastewaterCODFe2+280mg·L-1COD90.17%H2O2Fe2+COD。FentonFe2+·OHFe2+·OH[3]。Fe2+280mg·L-1。3Fenton。FentonCOD14.57%51.31%COD74.85%。COD。、pH、H2O2Fe2+30g·L-1、pH3、H2O2100mmol·L-1、Fe2+280mg·L-1180minH2O286.6%COD90.17%。Fenton。Fenton。[1]TianhuChen,XiaomingHuang,MinPan,etal.Treatmentofcokingwastewaterbyusingmanganeseandmagnesiumores[J].JournalofHazardousMaterials,2009,168:843-847.[2]TaoZhang,LiliDing,HongqiangRen,etal.Ammoniumnitrogenremovalfromcokingwastewaterbychemicalprecipitationrecycletechnology[J].WaterResearch,2009,43:5209-5215.[3],,,.Fenton[J].,2006,26(S2):288-293.[4],.Fenton[J].,2007,7(S1):104-107.[5]NogueiraRFP,SilvaMRA,TrovóAG.Influenceoftheironsourceonthesolarphoto-Fentondegradationofdifferentclassesoforganiccompounds[J].SolarEnergy,2005,79:384-392.[6]ZhangHui,ZhangDaobin,ZhouJiayong.RemovalofCODfromlandfillleachatebyelectro-Fentonmethod[J].JournalofHazardousMaterialsB,2006,135:106-111.[7],,,.-FentonPAEs[J].,2007,28(12):2734-2739.[8],.[J].,2006,15(4):30-31.[9]XSChai,QXHou,QLuo,etal.Rapiddeterminationofhydrogenperoxideinthewoodpulpbleachingstreamsbyadual-wavelengthspectroscopicmethod[J].AnalyticaChimicaActa,2004,507:281-284.[10],,.[J].,2007,16(12):117-123.[11],,.[J].,2007(12):11-13.[12],,,.Fenton[J].:,2003,31(5):51-55.[13],,,.Fe3+[J].,2009,29(8):28-31.[14],,.Fenton[J].,2005,21(4):354-357.[15],,,.Fenton[J].,2000,21(3):93-96.361262