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Titre du document / Document title

Adsorptive removal of copper and nickel ions from water using chitosan coated PVC beads

Auteur(s) / Author(s)

POPURI Srinivasa R. (1) ; VIJAYA Y. (1) ; BODDU Veera M. (2) ; ABBURI Krishnaiah (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Biopolymers and Thermophysical Laboratory, Department of Chemistry, Sri Venkateswara University, Tirupati 517 502, Andra Pradesh, INDE
(2) US Army Construction Engineering Research Laboratory, Engineer Research and Development Centre, Champaign, IL 61826, ETATS-UNIS

Résumé / Abstract

A new biosorbent was developed by coating chitosan, a naturally and abundantly available biopolymer, on to polyvinyl chloride (PVC) beads. The biosorbent was characterized by FTIR spectra, porosity and surface area analyses. Equilibrium and column flow adsorption characteristics of copper(II) and nickel(II) ions on the biosorbent were studied. The effect of pH, agitation time, concentration of adsorbate and amount of adsorbent on the extent of adsorption was investigated. The experimental data were fitted to Langmuir and Freundlich adsorption isotherms. The data were analyzed on the basis of Lagergren pseudo first order, pseudo-second order and Weber-Morris intraparticle diffusion models. The maximum monolayer adsorption capacity of chitosan coated PVC sorbent as obtained from Langmuir adsorption isotherm was found to be 87.9 mg g-1 for Cu(II) and 120.5 mg g-1 for Ni(II) ions, respectively. In addition, breakthrough curves were obtained from column flow experiments. The experimental results demonstrated that chitosan coated PVC beads could be used for the removal of Cu(II) and Ni(II) ions from aqueous medium through adsorption.

Revue / Journal Title

Bioresource technology    ISSN  0960-8524 

Source / Source

2009, vol. 100, no1, pp. 194-199 [6 page(s) (article)] (3/4 p.)

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Kidlington, ROYAUME-UNI  (1991) (Revue)

Mots-clés anglais / English Keywords

Nickel

;

Chitosan

;

Nickel ion

;

Copper

;

Biosorption

;

Adsorption

;

Mots-clés français / French Keywords

Nickel

;

Chitosane

;

Ion nickel

;

Cuivre

;

Biosorption

;

Adsorption

;

Mots-clés espagnols / Spanish Keywords

Niquel

;

Quitosano

;

Níquel ión

;

Cobre

;

Biosorción

;

Adsorción

;

Mots-clés d'auteur / Author Keywords

Chitosan

;

Biosorption

;

PVC beads

;

Copper

;

Nickel

;

Localisation / Location

INIST-CNRS, Cote INIST : 18769, 35400018572637.0300

Nº notice refdoc (ud4) : 20768765



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