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StudyofAdsorptionCr6+UsingCrosslinkedPolystyreneContaining8Hydroxyquinaldine

  

  1. (EngineeringDepartment,YunnanBusinessInformationEngineeringSchool,Kunming650204,China)
  • Online:2014-07-11 Published:2014-07-11

Abstract: In this paper, The adsorption characteristic ofthe chelating resin containing 8Hydroxyquinaldine(PSHQ)forCr6+ wasstudiedinaqueoussolution.ThestudiedparametersincludepH,adsorptiontemperature.TheresultsshowedthatPSHQcouldeffectivelyremovechromium fromaqueoussolution.IthadhighadsorptionabilityforCr6+ fromaqueoussolution.ThePSHQshowedhighadsorptionabilityforchromiumatawidepHrange(pH3.0~6.0),theoptimaadsorptonacidityofPSHQforCr6+ ispH4.0inHAcNaAcmedium.Adsorptionincreasedwithincreasesinadsorptiontemperatures.Itmeansthatthesorptionprocessisanendothermicprocess.TheadsorptionbehaviorofPSHQforCr6+ obeystheFreundlichandLangmuirisothermmodel.Afteradsorptiontheresincanberegeneratedwithnitrateacidanddemonizedwater,theregenerationratioreachupwardsof93~96%.PSHQisthebetterabsorptivematerialremovingCr6+ fromaqueoussolution,reachupwardsof93% ~96%.PSHQisthebetterabsorptivematerialremovingCr6+ fromaqueoussolution.

Key words: chelatingresincontaining8Hydroxyquinaldine(PSHQ), Cr6+, adsorption

CLC Number: