H2O2增效强化日光光解脱色酸性大红染料影响因素的研究朱华跃

[1]。、Advancedoxidationpro-cessesAOPs。H2O2[2]。/H2O2、、、。、、。/H2O2。H2O2AcidredAR、H2O2、pH－H2O2。11.1Φ×H80×11060mmΦ80PLS-SXE300。BQ50-1JUV-VisCary50。30%AR、、、、。。1.2－H2O21g·L-1H2O20.1mol·L-1H2SO4H2O2317000、H2O2－H2O2-、、H2O2。H2O24.0mmol·L-1－H2O2。20mg·L-1、2W·cm-2、H2O24.0mmol·L-160min97.0%。H2O2。X791TQ031.7A1000-3770(2009)12-06[e-mail]3512200912TECHNOLOGYOFWATERTREATMENTVol.35No.12Dec.,200964DOI:10.16796/j.cnki.1000-3770.2009.12.020NaOHpH500mL15A。。R=1-Ci/C0×100%lnC0/Ci=ktCitmg·L-1C0mg·L-1kmin-1。22.115A、H2O2、－H2O2320mg·L-11。H2O2H2O24.0mmol·L-1。H2O21.77eV2.07eV、[3]。H2O2。15A120min36.4%。。-H2O215min51.8%60min97.0%。R0.99923-H2O2。H2O2-UV-Vis502.1nm311.0nm。60min。-H2O2H2O2。-H2O2。2.2H2O220mg·L-115AH2O22。H2O2。3%H2O20、0.2、1.0、2.0、4.0、6.0mmol·L-150min18.4%、30.8%、66.7%、87.1%、91.6%、99.5%k0.00174、0.00739、0.02184、0.04024、0.04972、0.05342min-1。H2O24mmol·L-16mmol·L-1。H2O2。H2O2·OHH2O2·OH·OHH2O2OH··HO2·HO2·OHH2O2[4]。H2O2·OHH2O2。-H2O2H2O2。2.3H2O24.0mmol·L-115A0102030405060020406080100
/%/minH2O2Fig.2InfluenceofH2O2dosageonARdecolorization020406080100120020406080100
/%/min1Fig.1InfluenceofoxidationprocessonARdecolorizationrateH2O2653。-H2O210、20、35、50mg·L-190%20、40、80、150min。0.990.13657、0.04972、0.02732、0.01702min-1。-H2O2。·OH。·OH·OH。2.4pHH2O24.0mmol·L-115ApH20mg·L-14。4pH4.5、6.5、10.930min87.1%、81.3%、76.5%60min100%、99.3%、94.3%。pH。-H2O2。H2O2HO2-HO2-·OH·O2[5]。pH。2.5Cl-、SO42-、NO3-。20mg·L-1H2O24.0mmol·L-1Cl-、SO42-、NO3-5。5、0.1mol·L-1SO42-、、0.1mol·L-1Cl-0.1mol·L-1NO3-H2O260min97.0%、93.8%、81.5%74.4%。0.04972、0.04641、0.02793、0.02396min-1。NO3-。NO3-Cl-SO42-。NO3-,H2O2·OH[6]。-H2O2NO3-。320mg·L-1、2W·cm-2、H2O24.0mmol·L-160min97.0%R0.99923。H2O24mmol·L-1H2O2H2O24mmol·L-15Fig.5EffectofdifferentanionsonARphotolyticdecolorization020406080100120020406080100
/min/%4pHFig.4InfluenceofsolutionpHonARdecolorizationrate0102030405060020406080100
/%/min3Fig.3InfluenceofdifferentinitialconcentrationonARdecolorization03060901201501800102030405060
/mg L/min351266STUDYONIMPORTANTFACTORSOFAMPLIFIEDSUNLIGHT-H2O2TREATMENTFORPHOTOLYTICDECOLORIZATIONOFACIDREDZhuHuayue,JiangRu（DepartmentofEnvironmentalEngineering,TaizhouUniversity,Linhai317000,China）Abstract:Theprocessofsimulatedsunlightirradiation,H2O2oxidationandthecombinationofthesetwowerestudiedtodegradeAcidRedinwater,respectively.Thesystematicexperimentswerecarriedoutofdifferentinfluencingfactorssuchasdyeinitialconcentration,H2O2concentration,pHanddifferentinorganicanionsonphotolyticdecolorization.ResultsshowedthatAcidRedcouldnotbeeffectivelydecolorizedbyH2O2oxidationonlyandthedecoofAcidRedislimitedbyamplifiedsunlightradiationalone.However,thecombinationprocessofamplifiedsunlight-H2O2couldachievegoodresultsforAcidRed,ofwhichthephotolyticdegradationreactionoflowconcentrationAcidRedispseudo-first-orderkineticsmodel.Theresultsshowedthatdecolorizationratiowasupto97.0%wheninitialconcentrationofAcidRedwas20mg·L-1,intensionofsimulatedsunlightwas2W·cm-2,theamountofH2O2was4.0mmol·L-1,illuminationtimewas60min.ItincreasedthedecolorizationratioandreducedH2O2dosagecomparetotheSSI/H2O2oxidationalone.Keywords：dyewastewater;AcidRed;amplifiedsunlight;hydrogenperoxide;reactionkinetics6mmol·L-1。NO3-0.1mol·L-1NO3-60min76.7%。pHH2O2H2O2。－H2O2。[1],,,.[J].:,2007,47(3):457-460.[2],,.[J].,2008,34(2):5-8.[3],.[M].:,2001.[4]MontserratP,FrancescT.RemovaloforganiccontaminantsinpaperpulptreatmenteffluentsunderFentonandphoto-Fentonconditions[J].AppliedCatalysisB:Environmental,2002,36:63-74.[5]MuruganandhamM,SwaminathanM.PhotochemicaloxidationofreactiveazodyewithUV-H2O2process[J].DyesandPigments,2004,62(3):269-275.[6],,,.UV/H2O2A[J].,2008,30(5):22-25,54.2640。。5。13.0566。2009－2012。0411-84306946/84350513118116011022-23346206022-23350052993000740431-85652897618300074328.47km。。1.4209。2009－2011。0315-2920186063006022-23346206022-2335005299300074!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!H2O267