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改性吸附剂对水中砷的去除效果研究 Title:StudyontheRemovalEfficiencyofModifiedAdsorbentsforArsenicinWater Abstract: Arseniccontaminationinwaterhasbecomeasignificantenvironmentalconcern,posingserioushealthriskstohumanpopulationsworldwide.Variousmethodshavebeendevelopedtoremovearsenicfromwater,amongwhichadsorptionisconsideredoneofthemosteffectiveandeconomicalapproaches.Thisstudyaimstoinvestigatetheremovalefficiencyofmodifiedadsorbentsforarsenicinwater.Theexperimentinvolvedsynthesizingandcharacterizingmodifiedadsorbentswithdifferentproperties,testingtheiradsorptioncapacityforarsenic,andevaluatingtheirperformanceinrealwatersamples.Resultsindicatedthatmodifiedadsorbentsshowedpromisingpotentialforefficientarsenicremoval,offeringaviablesolutiontoarseniccontaminationinwatersources. 1.Introduction 1.1Background 1.2Objectives 1.3Significance 2.ArsenicinWater 2.1SourcesofArsenic 2.2HealthImpactsofArsenicContamination 2.3RegulatoryStandards 3.AdsorptionProcess 3.1MechanismofAdsorption 3.2FactorsAffectingAdsorptionCapacity 4.ModifiedAdsorbents 4.1TypesofAdsorbents 4.2ModificationTechniques 4.3CharacterizationMethods 5.ExperimentalDesign 5.1SynthesisofModifiedAdsorbents 5.2CharacterizationofAdsorbents 5.3ArsenicAdsorptionTests 5.4AnalysisofAdsorptionEfficiency 6.ResultsandDiscussion 6.1CharacterizationResults 6.2ArsenicAdsorptionEfficiency 6.3ComparisonofModifiedAdsorbents 7.ApplicationinRealWaterSamples 7.1WaterSamplingandAnalysis 7.2AdsorptionPerformanceinRealWaterSamples 8.FactorsInfluencingAdsorptionEfficiency 8.1InitialConcentrationofArsenic 8.2ContactTime 8.3SolutionpH 8.4Co-existingIons 9.ComparisonwithTraditionalAdsorbents 9.1ComparisonofAdsorptionCapacity 9.2Cost-effectivenessAnalysis 10.FutureResearchandRecommendations 10.1OptimizationofModifiedAdsorbents 10.2Long-termStabilityStudies 10.3ApplicationinLarge-scaleTreatmentSystems 10.4EnvironmentalImpacts 11.Conclusion References