Cr (Ⅲ) Removal from Synthetic Waste Water by Using Water Pond Mud.pdf

Cr (Ⅲ) Removal from Synthetic Waste Water by Using Water Pond Mud.pdf

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Apr.2010,Volume4,No.3(SerialNo.28) JournalofLifeSciences,ISSN 1934—7391,USA … N螨 Cr(III)RemovalfromSyntheticWasteWaterbyUsing W aterPondMud AshokKumar,BalwantSinghBisht,AmitabhTalwar,M anishKumar3andLalitKumar 1Dept.ofBiotechnology,HimachalInstituteofL~eSciencePaontaSahib.Sirmourl73025H《p).India 2.Dept.ofZoology/Entomology.HNBGU似CentralUniversity)CampusBadshahithaulTehri249199(UK)】India 3.DeptofPharmaceuticsHimachalInstituteofPharmacyPaontaSahibDitt-Sirmourl73025(HP)。India Received:January29,2010 /Accepted:Februry20,2010/Published:April30,2010 Abstract:Thepollutionofaquaticecosystem byheavymetalshasassumedseriousproportionsduetotheirtoxicityandaccumulative behavior.Thetoxiciytmetalisdependentonitschemica1fornqandthereforeremovalofmetalismoremeaningfulthantheestimation 0fitsconcentrations.In thisstudy,thebatch experimentswerecarriedoutunder30 ℃ tostudy theeffectofpH,initialCr concentration.adsorbentdoseandcontacttimeontheremoralofCr(1it).Themaximumadsorptionefficiency(99%)wasobserved when1.5gofpondmudwasusedforremovalofCr(III)fromtestsolutioncontaining150mg。Cr/100m1.TheoptimalpHandcontact timerecordedduringthestudywere6and10.0,respectively. Keywords:Aquaticecosystem,toxiciyt,waterpondmud,contacttime,adsoprtion 1.IntroductioH and hexavalent. which are foun d in lndustrial wastewater.Thehexavalentofmr Cr(Ⅵ)ismoretoxic Heavymetalpollutionproblemsareduetoindustrial tohumanthanthetrivalentofrm [4】.Intheanimal effluentsinaquaticenvironments.Themetalpollution experiments,acutelytoxicdosesofCr(III)fallinrange problems are increasing day by day as industrial ofg/kgofbodyweight.DietaryintakeofCr(VI)in effl

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