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UVFentonTiO_2光催化氧化降解微囊藻毒素的研究(英文).docx

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UVFentonTiO_2光催化氧化降解微囊藻毒素的研究(英文) Title:UV/Fenton/TiO2PhotocatalyticOxidationfortheDegradationofMicrocystin-LR:AReview Abstract: Microcystins(MCs)arepotenthepatotoxinsproducedbycyanobacteria,posingsignificantthreatstohumanhealthandecosystembalance.TraditionalwastewatertreatmentprocesseshavelimitedefficiencyinremovingMCsduetotheirlowmolecularweightandhighstability.Inrecentyears,advancedoxidationprocesses(AOPs)utilizingUV,Fentonreaction,andphotocatalysishaveemergedaspromisingmethodsforthedegradationofMCs.ThisreviewfocusesontheapplicationofUV/Fenton/TiO2photocatalyticoxidationfortheefficientremovalofmicrocystin-LR(MC-LR)fromwatersources. 1.Introduction 1.1Backgroundandsignificance 1.2Objectivesofthestudy 2.Microcystins:Structure,Occurrence,andToxicity 2.1Structureandtypesofmicrocystins 2.2Environmentaloccurrenceandsources 2.3Toxicologicaleffects 3.ConventionalMethodsforMCsRemoval 3.1Chemicalcoagulation/flocculation 3.2Activatedcarbonadsorption 3.3Biologicaldegradation 4.IntroductiontoAdvancedOxidationProcesses(AOPs) 4.1UVirradiation 4.2Fentonreaction 4.3Photocatalyticoxidation 5.UV/Fenton/TiO2PhotocatalyticOxidationforMC-LRDegradation 5.1PhotocatalystsforMCsdegradation 5.2MechanismsinvolvedinUV/Fenton/TiO2photocatalyticoxidation 5.3Factorsaffectingthedegradationefficiency 5.4Optimizationofoperationalconditions 6.KineticsandEfficiencyofMC-LRDegradation 6.1Kineticmodelsforreactionkineticsstudy 6.2Estimationofreactionrateconstants 6.3Evaluationofdegradationefficiency 7.PhotocatalyticReactorsforMC-LRDegradation 7.1Typesofphotocatalyticreactors 7.2Comparisonofcontinuousvs.batchsystems 7.3Scale-upconsiderations 8.ChallengesandLimitations 8.1MatrixeffectsonMC-LRdegradation 8.2Degradationby-productsandtheirtoxicity 8.3Catalystrecoveryandreuse 8.4Techno-economicfeasibility 9.FuturePerspectivesandConclusions 9.1Potentialresearchdirections 9.2Advancementsincatalystdesignandsynthesis 9.3Integrationwithtraditionaltreatmenttechnologies 9.4Conclusion Inconclusion,UV/Fenton/TiO2photoca