UVFenton降解拟除虫菊酯农药废水的研究贾国正

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[J].,2003,23(2):157-161.[2],,,.[J].,2007,33(9):57-61.[3],.[J].:,2007,28(5):721-724.[4]DiazMP,GrigonSJW,PeppiattCJ,etal.Isolationandcharacteri-zationofnovelhydrocarbon-degradingeuryhalineconsortiafromcrudeoilandmangrovesediments[J].MarineBiotechnology,2000,2(6):522-532.[5],,,.[J].,2003,4(12):12-16.[6],.[J].,2009,31(4):143-145.[7],.[J].,2009(7):13-15.[8],,,.-[J].,2009,3(3):544-548.[9]KisboredAshisKM.Crudepetroleum-oilbiodegradationefficiencyofBacillussubtilisandPseudomonasaeruginosastrainsisolatedfromapetroleum-oilcontaminatedsoilfromNortheastIndia[J].Biore-sourceTechnology,2007,98(7):1339-1345.[10]SaadounΙ.Isolationandcharacterizationofbacteriafromcrudepetroleumoilcontaminatedoilandtheirpotentialtodegradedieselfuel[J].JournalBasicMicrobiol.,2002,42(6):420-428.[11],,.、[J].,2007,3(3):68-72.[12],,,.[J].,2003,23(12):13-16.StudyonthedegradationofpyrethroidspesticideswastewaterbyUV/FentonprocessJiaGuozheng1,2,LiuWenjie2,ZhangYong2,DingYuanhong1,WangLiyou2,RenHongqiang1(1.StateKeyLaboratoryofPollutionControlandResourceReuse,SchoolofEnvironment,NanjingUniversity,Nanjing210093,China;2.DepartmentofEnvironment,SchoolofGeographyScience,NanjingNormalUniversity,Nanjing210046,China)UV/Fenton1,2,2,2,1,2,1(1.,210093;2.,210046)[]UV/Fenton,UV/Fenton,pH、H2O2、m(H2O2)∶m(FeSO4)、。:COD4700mg/L,pH=4,H2O28mmol/L,m(H2O2)∶m(FeSO4)=7∶1,200mL14W(70W/L)3.0h,COD51.32%。[]UV/Fenton;;[]X703.1[]B[]1005-829X(2010)11-0024-04Abstract:ThefeasibilityandregulationofusingthecombinedUV/Fentonprocessfordegradingpyrethroidspesti-cideswastewaterhavebeendiscussedindetail.Theeffectsofmanyinfluentialfactors,includingpH,thedosageofhydrogenperoxide,themassratioofhydrogenperoxideandferroussulfate,timeofdegradation,andintensityofUVlightonthedegradingefficienciesofpyrethroidspesticideshavebeeninvestigated.Theresultsindicatethatafterbe-ingilluminatedunderUVfor3h,theintensityofUVlightisabout14W(equalsto70W/L),CODremovalrateof51.32%canbeobtained,whentheoptimalconditionsareasfollows:theinitialCODofthepyrethroidspesticideswastewateris4700mg/L,pH=4,H2O2dosageis8mmol/L,massratioofH2O2andferroussulfateis7∶1.Keywords:UV/Fenton;pyrethroidspesticideswastewater;catalyticoxidation!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!3011201011IndustrialWaterTreatmentVol.30No.11Nov.,2010[](1979—),2008,。:26689181,E-mail:gxh1208@yahoo.com.cn。[]2010-07-08()24——2010-11,30(11),、,、、、,,。,〔1-3〕。:〔4〕、〔5〕、〔6〕。,UV/Fenton〔7-8〕,,UV/Fenton,,。11.1:H2O2、FeSO4、HCl、NaOH。:UV/Fenton1,8W14W(254nm,);COD()。1.2pH200mL(,COD4700mg/L)UV/Fenton,H2O2FeSO4,,254nm,,COD,3,。pH、H2O2、m(H2O2)∶m(FeSO4)、UV/Fenton。1.3COD。COD、COD。,-,,,,COD。22.1pHUV/Fenton,HClNaOHpH=3,200mLpH=3,H2O2H2O28mmol/L,m(H2O2)∶m(FeSO4)=7∶1Fe2+,14W254nm,,COD,COD,COD。pH4、5、6、7、8、9,,pHUV/Fenton,2。2,,UV/Fenton。Fenton〔9〕:Fe2++H2O2→Fe3++·OH+OH-(1)Fe3++H2O+hν→Fe2++·OH+H+(2)·OH+H++e-→H2O(3)(1),,Fe2+H2O2,(·OH),·OH,COD;(2),H+,Fe3+Fe2+,·OH,;,(3),H+·OH,·OH。,pH,·OH,Fe2+。,:UV/Fenton25——2010-11,30(11)2,pH=4,,3.0h,COD51.32%,pH。,pH=4。2.2H2O2UV/FentonUV/FentonH2O2Fe2+·OH,H2O2。pH=4,m(H2O2)∶m(FeSO4)=7∶1,14W254nm,H2O2,H2O23、6、7、8、9mmol/L,H2O2,COD,COD,COD。H2O2,UV/Fenton,3。3,H2O2,COD,H2O28mmol/L,。H2O2,H2O2,。H2O2、,H2O2·OH,,。H2O2,〔7〕:·OH+H2O2→HO2·+H2O(4)HO2·+·OH→H2O+O2(5)(4)(5),H2O2·OHHO2·,HO2··OH,·OH,·OH,H2O2,COD。,,H2O2,H2O2UV/Fenton。H2O28mmol/L。2.3m(H2O2)∶m(FeSO4)UV/FentonpH=4,H2O2=8mmol/L,14W254nm,FeSO4,m(H2O2)∶m(FeSO4)3∶1、5∶1、7∶1、9∶111∶1。FeSO4,,COD,COD,COD。m(H2O2)∶m(FeSO4)UV/Fenton,4。4,Fe2+,m(H2O2)∶m(FeSO4)=11∶1,COD;,Fe2+,COD,m(H2O2)∶m(FeSO4)=7∶1,,COD;Fe2+,m(H2O2)∶m(FeSO4)=3∶1,COD。Fe2+,Fe2+H2O2·OH,·OH,。Fe2+,Fe2+H2O2,·OH,〔7〕:2·OH→H2O2(6)Fe2++·OH→Fe3++OH-(7)(6)(7),·OH,Fe2+·OH,·OH,,CODFe2+。,FeSO4,,。,,m(H2O2)∶m(FeSO4)=7∶1。,4,,26——2010-11,30(11)COD,3.0h,COD。m(H2O2)∶m(FeSO4)=7∶1,,3.0h4.0h,COD51.32%52.26%,,H2O2,·OH。,,3.0h。2.4UV/Fenton(2),Fe3+Fe2+,·OH,。8W14W254nm,UV/Fenton。pH=4,H2O2=8mmol/L,m(H2O2)∶m(FeSO4)=7∶1,0、8、14、22W254nm200mL3.0h,COD,COD,COD,5。,UV/Fenton。,Fenton3.0h,COD5.04%,8W,COD41.86%,,,14W22W,COD,51.32%53.05%。,14W。3(1)UV/Fenton。pH=4,H2O2=8mmol/L,m(H2O2)∶m(FeSO4)=7∶1,200mLCOD4700mg/L14W(70W/L)3.0h,COD51.32%。(2)UV/Fenton,pH、m(H2O2)∶m(FeSO4)、H2O2、。UV/Fenton,。(3)UV/Fenton,,。[][1],,,.[J].,2006,15(1):125-129.[2].[D].:,2007.[3],,,.[J].,2009,48(6):394-398.[4],,,.[J].,2007,19(7):760-763.[5],,.[J].,2008,34(1):59-61.[6],,.、[J].,2002,20(2):21-22.[7]KusicH,KoprivanacN,BozicAL,etal.Photo-assistedFentontypeprocessesforthedegradationofphenol:Akineticstudy[J].JournalofHazardousMaterials,2006,136(3):632-644.[8]KatsumataH,SadaM,KanecoS,etal.Humicaciddegradationinaqueoussolutionbythephoto-Fentonprocess[J].ChemicalEngineeringJournal,2008,137(2):225-230.[9]TokumuraM,OhtA,ZnadHT.UVlightassisteddecolorizationofdarkbrowncoloredcoffeeeffluentbyphoto-Fentonreaction[J].WaterResearch,2006,40(20):3775-3784.[](1976—),2007,,,。E-mail:jjinan0510@163.com。[]2010-07-15(),:UV/Fenton———.JP2010058079··。、。()/2-()-2-/。2-()-2-/10%。()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!27——

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