Removal and recovery of vanadium(V) by adsorption onto ZnCl2 activated carbon: Kinetics and isotherms

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dc.contributor.authorNamasivayam, C.
dc.contributor.authorSangeetha, D.
dc.date.accessioned2014-05-17T04:42:24Z
dc.date.available2014-05-17T04:42:24Z
dc.date.issued2006
dc.description.abstractAdsorption of Vanadium(v) from Aqueous Solution onto Zncl2 Activated Carbon Developed from Coconut Coir Pith was Investigated to Assess the Possible Use of This Adsorbent. The Influence of Various Parameters such as Agitation Time, Vanadium Concentration, Adsorbent Dose, Ph and Temperature has been Studied. First, Second Order, Elovich and Bangham's Models were Used to Study the Adsorption Kinetics. The Adsorption System Follows Second Order and Bangham's Kinetic Models. Langmuir, Freundlich, Dubinin-radushkevich and Temkin Isotherms have been Employed to Analyze the Adsorption Equilibrium Data. Equilibrium Adsorption Data Followed all the Four Isotherms-langmuir, Freundlich, D-r and Temkin. The Langmuir Adsorption Capacity (q 0) was Found to be 24.9 Mg G- 1 of the Adsorbent. The per Cent Adsorption was Maximum in the Ph Range 4.0-9.0. The Ph Effect and Desorption Studies Showed that Ion Exchange Mechanism might be Involved in the Adsorption Process. Thermodynamic Parameters such as ?g 0, ?h 0 and ?s 0 for the Adsorption were Evaluated. Effect of Competitive Anions in the Aqueous Solution such as Po4 3 -, So4 2-, Clo4 -, Moo4 2-, Seo3 2-, No3 - and Cl- was Examined. Sem and Ftir were Used to Study the Surface of Vanadium(v) Loaded Zncl2 Activated Carbon. Removal of Vanadium(v) from Synthetic Ground Water was also Tested. Results Show that Zncl2 Activated Coir Pith Carbon is Effective for the Removal of Vanadium(v) from Water.en_US
dc.identifier.citationAdsorption Vol.: 12, No.: 2, March 2006 [Page 103-117]en_US
dc.identifier.urihttp://hdl.handle.net/123456789/1372
dc.language.isoenen_US
dc.publisherInternational Adsorption Societyen_US
dc.subjectAdsorptionen_US
dc.subjectActivated carbonen_US
dc.subjectVanadium(V)en_US
dc.subjectKineticsen_US
dc.subjectIsothermsen_US
dc.subjectpHen_US
dc.subjectForeign ionsen_US
dc.titleRemoval and recovery of vanadium(V) by adsorption onto ZnCl2 activated carbon: Kinetics and isothermsen_US
dc.typeArticleen_US

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