Sign up & Download
Sign in

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

by Srinivasa R. Popuri, Y. Vijaya, Veera M. Boddu, Krishnaiah Abburi
Bioresource Technology ()

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. ?? 2008 Elsevier Ltd.

Author-supplied keywords

Cite this document (BETA)

Available from Bioresource Technology
Page 1
hidden
Page 2
hidden

Readership Statistics

30 Readers on Mendeley
by Discipline
 
 
 
by Academic Status
 
23% Ph.D. Student
 
20% Student (Master)
 
13% Doctoral Student
by Country
 
7% Mexico
 
3% United Kingdom
 
3% Romania

Sign up today - FREE

Mendeley saves you time finding and organizing research. Learn more

  • All your research in one place
  • Add and import papers easily
  • Access it anywhere, anytime

Start using Mendeley in seconds!

Already have an account? Sign in