Fenton1,2,1,2,1,1(1.,510655;2.,510006)[],Fenton,H2O2Fe2+、pH、。H2O21.4mol/L,FeSO4·7H2O62.3mmol/L,pH7.4,3h,COD40000~45000mg/L、、COD78%。,Fenton。[]Fenton;;;;[]X703.1[]A[]1005-829X(2011)10-0028-03StudyonthepretreatmentoforganicwastegasabsorbingtailwashingsinsprayfinishingworkshopsbyFentonoxidationprocessDaiQin1,2,CenChaoping1,LuoJianzhong2,ChenDingsheng1,LeiYutao1(1.SouthChinaInstituteofEnvironmentalScience,DepartmentofEnvironmentProtection,Guangzhou510655,China;2.DepartmentofEnvironmentalScienceandEngineering,GuangdongUniversityofTechnology,Guangzhou510006,China)Abstract:Fentonpretreatmenthasbeenusedfortreatingorganicgasabsorbingwastewaterinspraying-paintingworkshoptreatment.TheeffectsoftheconcentrationsofH2O2andFeSO4·7H2O,pH,reactiontimeandotherfactorsontheremovalrateareinvestigated.Whenthereactionconditionsareasfollows:thedosageofH2O2isaround1.4mol/L,dosageofFeSO4·7H2O62.3mmol/L,pH7.4,andreactiontime3h,theCODoftheorganicgasabsorbingtailwashings,whoseinitialCODis40000-45000mg/Lcontainingacetone,ethylacetateanddimethylbenzene,canreach78%.TheresultsshowthatFentonreagenthasverygoodeffectonthepre-treatmentofwastewater.Keywords:Fentonreagent;pretreatment;organicgas;absorbingtailwashings;refractorybiodegradation,,、、,。,,,、〔1-2〕。,,。,,COD,,。Fenton〔3-5〕,Fenton〔6〕,Fenton,。Fenton,,,,。11.1:,A、、,,A0.3%,3[](2007A032301001);()(2007168502)2011-10,31(10)280.58%、0.65%、0.51%,COD40000~45000mg/L,pH7.4。:30%(H2O2),;(FeSO4·7H2O),;(H2SO4),;,;,。:DRB200,HACH;DR5000,HACH;pHC3001-8pH,;HJ-6,。1.2COD〔7〕,H2O2〔8〕。H2O2COD,H2O2COD〔9〕。H2O2COD1。1H2O2COD1.3100mL250mL,H2SO4pH,FeSO4·7H2O,,H2O2,,,,1H2O2,1COD,COD1,1COD,COD2,COD=COD2-COD1。2Fenton,:H2O2、Fe2+、pH、。,。2.1H2O2COD100mL,pH7.4,COD41005mg/L,FeSO4·7H2O84mmol/L,H2O20.4、0.6、0.8、1.0、1.2、1.4、1.6mol/L,3hCOD,2。2H2O2COD2,H2O2,COD,1.4mol/L,1.4mol/LH2O2。2.2FeSO4·7H2OCOD100mL,pH7.4,COD45900mg/L,H2O21.4mol/L,FeSO4·7H2O49、54.8、62.3、72.2、85.7、105.5、137.1mmol/L,3hCOD,3。3FeSO4·7H2OCOD3,Fe2+H2O2,Fe2+COD,Fe2+,,COD,62.3mmol/LFeSO4·7H2O2011-10,31(10),:Fenton29。2.3pHCOD100mL,COD43867mg/L,H2SO4pH3.1、4.0、5.1、6.1、7.4(pH),FeSO4·7H2O62.3mmol/L,H2O21.4mol/L,3hCOD,4。4pHCOD4,pH2~4,,〔10〕;pH2~7.4,COD75%,。,pH=7.4pH。2.4COD100mL,pH7.4,COD44000mg/L,FeSO4·7H2O62.3mmol/L,H2O21.4mol/L,2、2.5、3、3.5、4hCOD,5。5CODH2O2,,2.0h,,,2.0~3.0h,COD,3.5~4.0h,COD,,·OH,3h。3(1)H2O21.4mol/L,FeSO4·7H2O62.3mmol/L,pH7.4,H2O2,3h,COD78%,COD45000mg/L10000mg/L。(2)Fenton,。[][1],,,.[J].,2007,25(6):40-42.[2],,.[J].,2009,32(2):28-31.[3]SunHongwen,YanQishe.InfluenceofFentonoxidationonsoilorganicmatteranditssorptionanddesorptionofpyrene[J].JournalofHazardousMaterials,2007,144(1/2):164-170.[4]MasarwaA,Rachmilovich-CalisS,MeyersteinN.OxidationoforganicsubstratesinaeratedaqueoussolutionsbytheFentonreagent[J].CoordinationChemistryReviews,2005,249(17/18):1937-1943.[5],,.Fenton[J].,2009,29(12):46-48.[6]ChangSH,WangKS,LiHC,etal.EnhancementofRhodamineBremovalbylow-costflyashsorptionwithFentonpre-oxidation[J].JournalofHazardousMaterials,2009,172(2/3):1131-1136.[7],,,.[M].4.:,2002:216-219.[8],.[M].:,2003:172-173.[9],,.FentonCOD[J].,2001,17(2):27-28.[10],,.-Fenton[J].,2003,23(9):58-60.[11].Fenton[D].:,2008.[](1985—),。:15920417001,E-mail:daiqin0919@126.com。:,E-mail:cenchaoping@scies.org。[]2011-07-18()2011-10,31(10)30