Fenton试剂对染料废水的降解脱色作用研究

2009-03-03*E20081811531071。1964-。。、、、、、“”、、。COD。、[1]。FentonH2O2Fe2+、[2~4]。Fenton。Fen-tonFenton。11.1pH-S721FeSO4·7H2OH2O230%H2SO4NaOH。1.2200mg/LFenton*123121.150076;2.3.150090FentonCODFentonpH、H2O2、Fe2+、、COD。FentonCOD。200mg/LpH=4、20℃、H2O230%0.6mL/L、200mg/L60min99.66%COD88%。FentonCOD:TQ085.5:A:1001-0017200904-0015-03ResearchonTreatingDyeWastewaterbyFentonReagentYANGWei1,2,KONGDe-qian3,CHEChun-bo1andLIUDan2(1.DepartmentofEnvironmentalEngineering,HarbinUniversityofCommerce,Harbin150076China;2.LifeScienceandEnvironmentalScienceReserchCenter,HarbinUniversityofCommerce,Harbin150076China;3.TheArchitecturalDesigningandReserchInstitute,HarbinInstituteofTechnology,Harbin150090China)Abstract:InordertoresearchthedegradationefficiencyofFentonmethodonsomenon-biodegradableorganicpollutantandthefactorsthataf－fectthedegradationprocess,theeffectsofpHdosagesofH2O2andFeSO4reactiontimetemperatureondecolourationefficiencyandCODremovalefficiencyofthedyeswastewatersimulatedbymethylorangesolutionwerestudied.TheresultsshowedthatFentonreagentcouldremovethecolorandCODofthisdyewastewatereffectivelywithcolorandCODremovalsof99.66%and88%respectivelywhentheconcentrationofdyewas200mg/LpH=4temperaturewas20℃thedosagesofH2O2andFeSO4·7H2Owere0.6mL/Land200mg/Landreactiontimewas60min.KeywordsMethylorangedyeFentonreagentdyewastewaterchromaCOD2009314CHEMISTRYANDADHESION·15·H2O2NaOHpH8~9λ=465nm[5]=-×100%COD。COD[6]。22.1CODFe2+。200mg/LH2O230%1mL/LpH4.0、20℃60min1。1CODFig.1EffectofferroussulphatedosageoncolourandCODremoval1Fe2+COD。Fe2+OH·。Fe2+OH·OH·Fe2+H2O2Fe3+。200mg/LCOD99.80%、99.69%87%、72%。2.2H2O2CODH2O2Fenton。H2O2200mg/L200mg/LpH4.020℃60minH2O2。2。2H2O2CODFig.2EffectofhydrogenperoxidedosageoncolourandCODremoval2H2O2CODH2O2COD。H2O2H2O2CODH2O2H2O2Fe2+Fe3+Fe3+OH·H2O2CODH2O2。2.3pHCODpHFentonH2O2pH。pH。pH200mg/LH2O230%0.6mL/L200mg/L20℃60min3。3pHCODFig.3EffectofpHvalueoncolourandCODremoval3pH2~4Fenton96.99%COD84%pH499.84%COD88%。FentonFe2++H2O2→10090807060504030200100200300400500600/mg·L-1/%1009080706050403020H2O2/mg·L-1/%0.00.20.40.60.81.0100908070605040/%0246810pHFentonVol．31．No．42009·16·Fe3++OH-+OH·Fe3++H2O2→Fe2++H++HO2·pHpH6Fe3+OH·pH2Fe3+Fe2+pH4pH4~5。2.4200mg/LpH4.0200mg/LH2O230%0.6mL/L。4。4CODFig.4EffectofreactiontimeoncolourandCODremoval4COD。4Fenton20min95.3%COD74%60minCOD60min60min。2.55CODFig.5EffectofreactiontemperatureoncolourandCODremoval520~60℃COD。60℃COD。OH·OH·CODH2O2O2H2OOH·。。3Fenton200mg/L20℃pH=4、H2O230%0.6mL/L、20mg/L60min99.66%COD88%。Fenton、、。1.FentonJ.200134(5):76~80.2MOMANIFASANSCESPLUGASS.Acomparativestudyoftheadvancedoxidationof24-dichlorophenolJ.JHazardMat2004107:123~129.3LIONMJLUMCCHENJN.OxidationofexplosivesbyFen－tonandphoto-FentonprocessesJ.WaterRes200337:3172~3179.4.FentonJ.200423(2):135~139.5,,,.FentonJ.,200723:(2)84~87.6GB11914-19...S.1989.10090807060020406080/min/%1009590858020406080/℃/%254“ZSM-5”、、、、、。2009314CHEMISTRYANDADHESION·17·!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!