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Fenton试剂氧化处理甲基橙模拟废水的条件研究.docx

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Fenton试剂氧化处理甲基橙模拟废水的条件研究 Title:StudyontheConditionsofFentonReagentOxidationTreatmentforMethylOrangeSimulatedWastewater Abstract: Inrecentyears,thedischargeofcoloredwastewaterhascausedseriousenvironmentalproblems.Amongthem,methylorangewastewaterisparticularlydifficulttotreat.Fentonreagenthasbeenwidelyusedinthetreatmentofwastewater,buttheeffectisaffectedbymanyfactors.ThisstudyaimstoinvestigatetheconditionsofFentonreagentoxidationtreatmentformethylorangesimulatedwastewater.TheresultsshowedthattheoptimalconditionsfortheFentonreagentoxidationtreatmentofmethylorangesimulatedwastewaterwereatapHof3.0,anH2O2concentrationof3.0mL/L,anFeionconcentrationof0.1g/L,andareactiontimeof60min.Thetreatmentrateformethylorangewas98.2%. Introduction: Withtherapiddevelopmentofindustry,wastewaterpollutionhasbecomeamajorenvironmentalproblem.Oneofthemostcommonpollutantsinwastewateriscoloredsubstances,whichcanseriouslyaffectthequalityofwaterresources,poseathreattohumanhealth,andleadtoecologicaldamage.Methylorange,atypeofsyntheticdye,iswidelyusedinindustrialprocessessuchasleather,paper,andtextilemanufacturing.Thedischargeofmethylorangewastewaterhascausedseriousenvironmentalproblems.Variousmethods,suchascoagulation-flocculation,adsorption,andbiologicaltreatment,havebeenusedtotreatdyewastewater.However,thesemethodshavelimitations,suchaslowremovalefficiency,highcost,andthegenerationofsecondarypollution.Fentonreagenthasbeenshowntobeaneffectivemethodforthetreatmentofwastewater,especiallyforthedegradationoforganicpollutants.TheFentonreagentsystemcaneffectivelydegradeorganicpollutantsbygeneratinghydroxylradicals(•OH)throughthereactionbetweenFe2+andH2O2. MaterialsandMethods: Theexperimentwascarriedoutinalaboratoryatroomtemperature.Thematerialsusedintheexperimentweremethylorange,H2O2,andFeSO4.Thesimulatedwastewaterwaspreparedbyaddingacertainamountofmethylorangetodistilledwater.TheFentonreagentwaspreparedbyaddingacertainamountofFeSO4andH2O2todistilledwater.Thesimulatedwastewaterwasstirredfor10minandthenad