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StudyofDDNPwastewatertreatmentbyFentonprocessJiaBaojun,NiuFeifei,YuanSuhong(EnvironmentalEngineeringDepartment,InstituteofResources&Environment,HenanPolytechnicUniversity,Jiaozuo454000,China)FentonDDNP,,(,454000)[]FentonDDNP,H2O2FeSO4、、pH、。,pH6,30%H2O240mL/L、Fe2+4.56g/L,1.5h,CODCr94.78%,94.38%。[];Fenton;[]X703.1;O643.3[]A[]1005-829X(2009)12-0046-03Abstract:FentonreagenthasbeenusedfortreatingDDNPwastewater.TheeffectsofthevolumeratiooftheH2O2andFeSO4,thetotalreagentsdosage,pH,reactiontimeandotherfactorsontheremovalrateareinvestigated.TheresultsshowthatwhenthepHis6,dosageofH2O2(30%)isaround40mL/L,dosageofFe2+is4.56g/L,andoscillationtimeis1.5h,then,theCODremovalratecanbeupto94.78%,andchromaremovalratecanbeupto94.38%.Keywords:diazodinitrophenol;Fentonreagent;wastewatertreatment(DDNP)。1kg200~300kg〔1〕。DDNP、,,、,,,〔2〕。,DDNP:、、、、、—、〔3〕。,,;,,。,,。Fenton(H2O2/Fe2+),H2O2Fe2+,〔4-5〕。,Fenton、、〔6~8〕。FentonDDNP,DDNP,。11.1DDNP,,pH10~11,COD5580mg/L,24000。1.21.2.1;;[(NH4)2Fe(SO4)2·6H2O];Fenton;HCl;NaOH;-;。1.2.2;pH;;COD;;250mL。1.3SS,,。,pH,pH,50mL,,2912200912IndustrialWaterTreatmentVol.29No.12Dec.,200946——2009-12,29(12),,,COD、pH。22.1H2O2FeSO4CODDDNP50mL4,H2O22mL,pH4,0.5mol/LFeSO4()1、2、3、5mL,2h,,COD。1。1,FeSO4H2O2COD,FeSO43mL,COD。H2O2,FeSO4<3mL,FeSO4,COD;FeSO4>3mL,COD。:Fe2+,Fe2+,H2O2,Fe2+,,,;Fe2+,H2O2Fe3+,。V(FeSO4)∶V(H2O2)=3∶2,COD93.57%,95%。2.2FentonCODDDNP50mL4,FeSO43mL、H2O22mL0.5、1、2、3、4Fenton,pH4,2h,,COD。2。2,Fenton,COD,。COD:(1)H2O2,;(2),H2O2,。,Fenton,COD。:,H2O2(>40mL/L),H2O2HO·H2OO2;,Fe2+HO·,HO·,HO·Fe2+Fe3+,,COD,。,H2O240mL/L,4.56g/L。2.3pHCODDDNP50mL4,H2O22mL,FeSO43mL,HClNaOHpH2、4、6、8,2h,,COD。3。3,pH2~8,COD、,pH6,,COD94.82%94.38%,pH,COD。Fenton,,H2O2OH-pH,pH,H+,,Fe2+;pH,,Fe2+Fe3+,pH,10095908580757065601∶22∶23∶25∶2COD/%1H2O2FeSO4CODV(FeSO4)∶V(H2O2)1009590858075700.51234Fenton/%COD2FentonCOD,:FentonDDNP10098969492902468pH/%COD3pHCOD47——2009-12,29(12)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!。pH6。2.4CODDDNP50mL,H2O22mL,FeSO43mL,pH6,0.5、1、1.5、2、2.5h,,COD。4。4,1h,COD,,1.5h,COD。,H2O2Fe2+,,。,,H2O2Fe2+,,。,1.5h。3,FentonCOD5580mg/L、24000DDNP,:pH6,30%H2O240mL/L、FeSO44.56g/L,1.5h;COD94.78%,94.38%,COD291mg/L、1350。FentonDDNP,Fenton,。、Fenton,,Fenton,;Fenton。[][1],,.—DDNP[J].,2005(3):35-36.[2],,,.-DDNP[J].,2005,34(4):36-38.[3].[J].,1994,23(4):12-13.[4]AndreozziR,CaprioC,InsolaA,etal.Advancedoxidationpro-cesses(AOP)forwaterpurificationandrecovery[J].CatalysisTo-day,1999,53(1):51-59.[5]NeyensE,BaeyensJ.AreviewofclassicFenton’speroxidationasanadvancedoxidationtechnique[J].JournalofHazardousMateri-als,2003,98(1/2/3):33-50.[6]GoldstinS,MeyerstinD,CzapskiG.TheFentonreagents[J].FreeRadicalBiologyandMedicine,1993,15(4):435-445.[7]SzpyrkowiczL,JuzzolinoC,KaulS.Acomparativestudyonoxi-dationofdispersedyesbyelectrochemicalprocess,ozone,hypochlo-riteandFentonreagent[J].WaterResearch,2001,35(9):2129-2136.[8]BenattiCT,TavaresCRG,GuedesTT.OptimizationofFenton’soxidationofchemicallaboratorywastewatersusingtheresponsesurfacemethodology[J].JournalofEnvironmentalManagement,2006,80(1):66-74.[](1974—),2007,,。:15939136101,E-mail:jbjqjl@yahoo.com.cn。[]2009-07-27()2×104t/d、20099,。,。,,。(2009-09-04)··10098969492900.51.01.52.02.5COD/%4COD/h48——
本文标题:Fenton法处理DDNP废水的实验研究贾保军
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