预览加载中，请您耐心等待几秒...

UVFenton降解染料橙黄Ⅱ的脱色研究.docx

预览
1/2
2/2

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

UVFenton降解染料橙黄Ⅱ的脱色研究 UV/FentonprocessforDecolorizationofOrangeIIDye Introduction Textileindustriesconsumeasignificantamountofwateranddischargewastewaterthatcontainsaconsiderableamountofdye.OrangeIIisacommondyeusedinthetextileindustry,butitsreleaseintheenvironmentmaycausesevereenvironmentalproblems.Therefore,itisessentialtoremoveitfromwastewaterbeforeitsdischargeintotheenvironment.Inthisstudy,theUV/Fentonprocesshasbeeninvestigatedfortheefficientandlow-costremovalofOrangeIIdyefromwastewater. Experimental TheexperimentswerecarriedoutusingsyntheticwastewatercontainingOrangeIIdyeasthemodelpollutant.TheinitialconcentrationofOrangeIIinthewastewaterwas50mg/L.TheUV/FentonprocesswasperformedinabatchreactorusinganultravioletlampastheradiationsourceandFeSO4/hydrogenperoxideastheFentonreagent.Theoperatingparameters,includingreactiontime,pH,andH2O2dosage,werevariedtooptimizetheremovalefficiencyofOrangeIIdye. ResultsandDiscussion TheresultsshowedthattheremovalefficiencyofOrangeIIdyeincreasedwithincreasingUVirradiationtimeandH2O2dosage.ThemaximumremovalefficiencyofOrangeIIdyewasobservedatpH3,whichwasattributedtotheformationofhydroxylradicals.Thehighestremovalefficiencywasachievedwhen150mg/LFeSO4and300mg/LH2O2wereused.TheUV/FentonprocessremovedOrangeIIdyeatanefficiencyof95%in60minutesofreactiontime. TheresultsofthisstudyareconsistentwithpreviousstudiesthathaveusedUV/Fentonfordecolorizationofdyes.TheUV/Fentonprocessisahighlyefficientandeconomicalmethodfordyeremovalcomparedtootherconventionalmethodssuchascoagulation,photocatalysis,andbiologicaloxidation.UV/Fentonprocesshasbecomeawidelyusedmethodinvariousindustriessuchastextiles,dyemanufacturing,andpaper-making. Conclusion TheUV/FentonprocessshowedhighefficiencyintheremovalofOrangeIIdyefromwastewater.Theprocesswasefficient,fast,andeconomical.TheoptimumconditionsforthehighestefficiencyweredeterminedaspH3,150mg/LFeSO4,and300mg/LH2O2.TheresultssuggestthattheUV/FentonprocesscanbeanexcellentcandidatefortreatingwastewatercontainingOrangeIIdy