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Fenton氧化及微电解处理染料废水的可生化性研究.docx

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Fenton氧化及微电解处理染料废水的可生化性研究 Title:AStudyontheBiodegradabilityofDyeWastewaterTreatedbyFentonOxidationandMicroelectrolysisProcess Abstract: Dyewastewaterposessignificantecologicalandenvironmentalchallengesduetoitshighchemicaloxygendemand(COD)andpersistentcoloration.Thus,itiscrucialtodevelopeffectiveandsustainabletreatmentmethodsfortheremovalanddegradationofdyesfromwastewater.ThisstudyinvestigatesthebiodegradabilityofdyewastewatertreatedbytheFentonoxidationandmicroelectrolysisprocess.TheresultsdemonstratethatFentonoxidationfollowedbymicroelectrolysissignificantlyenhancestheremovalefficiencyofdyesandimprovesthebiodegradabilityofthewastewater. 1.Introduction: Dyewastewaterfromvariousindustrialsectors,includingtextile,leather,andprintingindustries,containsawiderangeofcomplexorganiccompoundsthatareresistanttoconventionaltreatmentprocesses.Thepresenceofthesedyesinwaterbodiesnotonlyposesaestheticconcernsbutalsoleadstothedepletionofdissolvedoxygenanddisruptsaquaticecosystems.Therefore,thedevelopmentofefficienttreatmentmethodsfordyewastewaterhasbecomeanimperativerequirement. 2.FentonOxidation: Fentonoxidationisanadvancedoxidationprocessthatutilizesthereactionbetweenhydrogenperoxideandironcatalyststoproducehighlyreactivehydroxylradicals.Theseradicalshavestrongoxidizingpropertiesandcaneffectivelydegradevariousorganicpollutants,includingdyes.ThevariablessuchaspH,hydrogenperoxidedosage,andironcatalystconcentrationareoptimizedtoachievemaximumdyedegradationefficiency. 3.Microelectrolysis: Microelectrolysisisanelectrochemicalprocessthatutilizesironfilingsorotheriron-basedmaterialsastheanodetoreleaseferrousions.TheseferrousionsreactwithhydrogenperoxidegeneratedduringFentonoxidationtoformreactiveferrylions.Theferrylionsexhibitstrongoxidativeability,leadingtothedegradationofcomplexorganiccompoundsindyewastewater.Theparameterssuchasreactiontime,irondosage,andadsorptioncapacityarecarefullycontrolledtoachieveoptimaldegradationresults. 4.ExperimentalProcedure: Aseriesoflaboratory-scaleexperim