Fenton试剂微电解预处理硝基苯类废水试验

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Fenton-3,,,(,225009):Fenton2.:[H2O2]=011molL-1,[Fe2+]=0101molL-1,60min,pH310,Fenton4416%,CODCr4811%,Fenton2,9618%,CODCr6712%.:Fenton;;;:X703.1:A:1007824X(2006)02007405.,,2.,,(SCWO)UV2Fenton[122],,UV2Fenton,,[325].Fenton2,,.1111UV22401PC();330pH(WTW).(98%)(30%),AR.112.,,.1.1Tab.1ValueofwastewaterqualitypHQCODCrö(mgL-1)QNBö(mgL-1)QAnö(mgL-1)()2.80124801300572000113Fenton.,H2O2,FeSO4,,80rmin-1.015h,..,100mm,500mm,.,,:200511073,E2mail:zhangj@yzu.edu.cn92()Vol.9No.220065JournalofYangzhouUniversity(NaturalScienceEdition)May2006pH=810,.Fenton.114pH;CODCr;;N2.[6].2211Fenton[728]FentonpHH2O2QFe2+.,H2O2QFe2+3,.1)H2O2.1000mL5,pH=2180,QCODCr=12480mgL-1,QNB=1300mgL-1,FeSO47H2O2178g,[Fe2+]=0101molL-1;H2O21,2,3,4,5mL,5,60min.,,1.1,H2O2,CODCr;H2O23mL,CODCr.Fenton,H2O2OH,OH.,H2O2,.,H2O2011molL-1.2).1000mL5,3mL0.1molL-1H2O22178gFeSO47H2O,15,30,45,60,75,90min.,,,2.1H2O2FentonFig.1InfluenceofH2O2onthedistributionofbiomassontheFentonreagenttreatmenteffect1.;2.CODCr2FentonFig.2InfluenceofthereactiontimeontheFentonreagenttreatmenteffect1.;2.CODCr2,,CODCr,60min,CODCr.,60min.3)QFe2+.1000mL5,011molL-1H2O23mL,QFe2+280,420,560,700,840mgL-1,60min,,,3.572:Fenton23QFe2+FentonFig.3Influenceofthe[Fe2+]ontheFentonreagenttreatmenteffect1.;2.CODCr3,QFe2+,CODCr,QFe2+560mgL-1,,CODCr.Fenton.Fenton,Fe2+OH.,QFe2+,OH,CODCr,QFe2+Fe2+Fe3+,,,CODCr.,FeSO47H2O2178gL-1,[Fe2+]=560mgL-1,,[H2O2][Fe2+]101,[9].212,,,:Fe-2eFe2+;:2H++2eH2.,.4pHFig.4InfluenceoftheinletpHonthemicro-electrolysistreatmenteffect1.;2.CODCrpH.1)pH.1000mL6,NaOHpH215,310,315,410,415510,1h,pH810,,4.5Fig.5Influenceofthereactiontimeonthemicro-electrolysistreatmenteffect1.;2.CODCr4,pH,,pH,H+,,.,pH,Fe2+,pHFe(OH)2Fe(OH)3,,CODCr.pH,,.,pH310.2).1000mL,pH=310,20,40,50,60,70,90min,pH810,,5.5,60min,.,60min,,,67()9.,60min.213Fenton-[10],.,QNB,.QNB,QAn,,.,QNB,Fenton[8]64.,Fenton2QNB,.,,.1)2Fenton.60min,pH,pH0.1molL-1H2O23mL,60min,pH810,,2.2-FentonTab.2Efficiencyoftreatmentsequencewithmicroelectrolysis-FentonreagenttechnologymgL-1QNBQAnQCODCr245105010330Fenton26579276442,Fenton,Fenton,,Fenton,H2O2,.,Fenton,QNB,.,Fenton.2)Fenton2.1L,0.1molL-1H2O23mL,FeSO47H2O2178gFenton,60min,,60min,pH810,,3.3Fenton-Tab.3EfficiencyoftreatmentsequencewithFentonreagent-micro-electrolysistechnologymgL-1QNBQAnQCODCrFenton720-83874248740893,.Fenton45%,94%..,Fenton2,,.31)pH=310,H2O23mL([H2O2]=011molL-1),FeSO47H2O2178g([Fe2+]=0101molL-1),Fenton.2)pH,pH=310,1h.3)Fenton2,9618%,CODCr6712%.772:Fenton2:[1],,,.[J].,2003,23(3):16219.[2].2SBR[J].,2002(5):7210.[3]CHAMARROE,MARCOA,ESPLUGASS.UseofFentonreagenttoimproveorganicchemicalbiodegradability[J].WatRes,2001,35(4):104721051.[4]MIGUELR,ANDREASK,SANDRAC,etal.InfluenceofH2O2andFe(Ë)inthephotodegradation[J].Pho2tochem&PhotobiolA:Chem,2000,133:1232127.[5]ECKENFELDERWJJr.Industrialwaterpollutioncontrol[M].3rded.NewYork:Graw2Hiu,2002.[6].[M].4.:,2002.[7],,,.Fenton[J].,2000,21(3):93296.[8],,,.Fenton[J].,2001,22(5):60264.[9],,,.Fenton[J].,2003,16(1):12215.[10]FRIEDAO,NAVAN.Evaluationoftoxicorganicsremoralbysimultaneousadsorptionandbiodegradation[C]ööProceedingsoftheIndustrialWasteConference.Switzerland:[s.n.].1997:1592171.ExperimentsonFentonreagentandmicro-electrolysistechnologytopre-treatwastewatercontainingnitrobenzeneZHANGJian3,WANGZi2bo,ZHUYi2ping,JIZhu2mei(CollofEnvironSci&Engin,YangzhouUniv,Yangzhou225009,China)Abstract:Inthispaper,Fentonreagentandmicro2electrolysistechnologyareusedtopre2treatwastewatercontaininghigherconcentrationofnitrobenzene.ExperimentsshowtheremovalefficiencyofnitrobenzeneandCODcrbyFentonreagentcanreach4416%and4811%respectivelyinthefollowingcondition:[H2O2]=011molL-1,[Fe2+]=0101molL-1,reactiontime=60minandpH=310.Thetotalremovalefficiencyofnitrobenzeneis9618%andthatofCODCris6712%respectively.Keywords:Fentonreagent;micro2electrolysis;nitrobenzene;wastewatertreatment()87()9

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