光助Fenton法氧化垃圾渗滤液中有机物的研究

29,6Vol129,No16,pp16612166420096SpectroscopyandSpectralAnalysisJune,2009Fenton13,2,1,111,40004521,400716,,Fe2+/H2O2pHFentonUV254,Fenton,FentonFenton:Fe2+/H2O21/95,Fe2+5100mmolL-1,H2O25170102mmolL-1,pH215Fenton,Fenton,dc/dt=-4134[c]1192;,FentonFenton;;;UV254;:O643:ADOI:1013964/j1issn1100020593(2009)0621661204:2008203206,:2008206208:(20777095),(CSTC22006BA7029)(200706A1A0110231):,,1973,e2mail:panyunxia1@1631com3e2mail:zhenghl@cta1cq1cn,[1]Fenton[224],Fenton(photo2Fentonsreaction)Fenton,H2O2[527],[8],Fenton,[9213],254nm,254nm(UV254),UV254,,UV254,[13]UV254,,[15,16]Fenton,FentonUV254,Fenton,,Fenton11111H2O2(AR,30%),(AR),Table1CharacteristicsoflandfillleachatepH//NTUSS/(mgL-1)CODCr/(mgL-1)UV254/cm-181672190103114610254110010321356112TU218102();TES21332A();TDR/890();DELTA320pH(2);DF2()113H2SO4NaOHpH,Fe2+H2O2,,110mmolL-1NaOHpH815(pH[1]),1h,UV254UV254254nm,UV254o254nmFig11ChangeofsolarlightintensitywithtimeinChongqing2211Fe2+/H2O2UV254Fe2+/H2O2UV254232,H2O2,Fe2+3100mmolL-1,9815%3,Fe2+3100mmolL-1,UV254/UV254o0120Fe2+3100mmolL-1,Fe2+/H2O21/95,212pHUV254pHUV254454,pH210215,,9917%9916%;pH,5,UV254/UV254opH2150112,pH215,Fenton213Fe2+UV254Fe2+UV254676,Fe2+,7,Fe2+4100mmolL-15100mmolL-1,120min,UV254/UV254o01840122,Fe2+,UV254/UV254o,5100mmolL-1Fe2+266129214H2O2UV25489,H2O2,,UV254/UV254o,,H2O2,H2O2,,H2O25170102mmolL-17160102mmolL-1,UV254/UV254o,5170102mmolL-1H2O2215Fenton,Fenton,10,Fenton,220374nm,,Fenton,,218nm,Fenton,Fenton,FentonFig110Spectrumoflandfillleachatebeforeandafterphoto2Fentontreatmenta:Beforephoto2Fentontreatment;b:Afterphoto2Fentontreatment216Fenton,FentonH2O25170102mmolL-1,Fe2+5100mmolL-1,pH215,Fenton:-dc/dt=-4134[c]1192,Fenton3(1)Fenton(2)Fenton:Fe2+/H2O21/95,pH215,Fe2+5100mmolL-1,H2O25170102mmolL-1(3),Fenton(4)Fenton,-dc/dt=-4134[c]119236616[1]PANYun2xia,ZHENGHuai2li,LIDan2dan,etal(,,,).ChineseJournalofEnvironmentalEngineering(),2007,1(7):97.[2]ZhangHui,ChoiHeungjin,HuangChinpao.JournalofHazardousMaterials,B,2006,136:618.[3]ZhangHui,ChoiHeungjin,HuangChinpao.JournalofHazardousMaterials,B,2005,125:166.[4]YangDeng.JournalofHazardousMaterials,B,2007,146:334.[5]ZHENGHuaili,PANYunxia,XIANGXinyi.JournalofHazardousMaterials,B,2007,141:457.[6]ZHENGHuai2li,PENGDe2jun,LIHong,etal(,,,).SpectroscopyandSpectralAnalysis(),2007,27(5):1006.[7]ZHENGHuai2li,LIUHong,LIFang,etal(,,,).SpectroscopyandSpectralAnalysis(),2006,26(12):2360.[8]ZHENGHuai2li,HUANGXiao2hong,HEQiang,etal(,,,).SpectroscopyandSpectralAnalysis(),2008,28(3):543.[9]AntonioLopez,MichelePagano,AngelaVolpe,etal.Chemosphere,2004,54:1005.[10]LAUIvanWC,WANGPeng,CHIUStellaST,etal.JournalofEnvironmentalSciences,2002,14(3):388.[11]LIHong,LIXiao2hong,PENGDe2jun,etal(,,,).SpectroscopyandSpectralAnalysis(),2007,27(8):1591.[12]ZHENGHuai2li,ZHANGZhan2mei,TANGMing2fang,etal(,,,).SpectroscopyandSpectralAnalysis(),2006,26(4):768.[13]ZHENGHuai2li,XIANGXin2yi(,).SpectroscopyandSpectralAnalysis(),2004,24(6):726.[14]JIANGShao2jie,LIUZong2yuan(,).JournalofChongqingJianzhuUniversity(),2002,24(2):61.[15]JaroslawWiszniowski,DidierRobert,OannaSurmacz2Gorska,etal.AppliedCatalysisB:Environmental,2004,53:127.[16]JavierFRivas,FernandoBeltrn,OlgaGimeno,etal.WaterResearch,2003,37:4823.DegradationofOrganicContaminantinLandfillLeachatebyPhoto2FentonProcessZHENGHuai2li13,PANYun2xia2,LIDan2dan1,WUYou2quan11.KeyLaboratoryoftheThreeGorgesReservoirRegionsEco2Environment,MinistryofEducation,ChongqingUniversity,Chongqing400045,China2.CollegeofEngineeringandTechnologyofSouthwestUniversity,Chongqing400716,ChinaAbstractInthepresentwork,thetreatmentoflandfillleachatewasstudiedbyphoto2Fentonprocess.Allphotocatalyticexperi2mentswerecarriedoutundersimilarconditionsonJulyorAugustsunnydaysbetween12a.m.and14p.m.inChongqingbasedonthechangeinsolarlightintensitywithtime.TheeffectofoperatingconditionssuchasFe/H2O2,pHvalueandFentonsrea2gentdosageoncolorremovalandUV254wasinvestigated.TheUV-Visabsorptionspectraof1100103mgL-1landfillleachatewereconsideredbeforeandafterphoto2Fentonexperiment.Theexperimentresultindicatedthatphoto2Fentonprocesscaneffectivelyremovecolor.TheoxidationoforganicmaterialsintheleachatewaspHdependentandtheoptimalpHwas215.ThefavorableFe2+toH2O2molarratiowas1/95.TheoptimalconditionsinthisresearchwereFe2+concentrationof5100mmolL-1andH2O2concentrationof5170102mmolL-1.Meanwhile,theanalysisofreactionkinesicswascarriedoutinthere2search.Second2orderkineticwasobservedforthedegradationoflandfillleachate,andtherateequationofphoto2Fentonprocesswas-dc/dt=-4134[c]1192.TheresultofUV2Visspectraoflandfillleachateshowedthatphoto2Fentonprocessisaneffectivemethodforremovaloforganiccompounds.KeywordsPhoto2Fentonprocess;Landfillleachate;Colorremoval;UV254;Kinesics3Correspondingauthor(ReceivedMar.6,2008;acceptedJun.8,2008)466129