Biosorption of nickel on blank alginate beads, free and immobilized algal cells

F. A. Abu Al-Rub, M. H. El-Naas, F. Benyahia, I. Ashour

Research output: Contribution to journalArticlepeer-review

207 Citations (Scopus)

Abstract

The potential use of blank alginate beads, free (non-immobilized) live and dead and immobilized dead algal cells for the removal of nickel ions from aqueous solutions was investigated. Immobilization enhanced the sorption of nickel and repetitive use of the sorbent could be achieved. Increasing initial pH or initial nickel ions concentration resulted in an increase in nickel uptake. The experimental results were fitted satisfactory to the Langmuir and Freundlich isotherm models. The results of the kinetic studies showed that the sorption of nickel ions on blank alginate beads, free live, dead and alginate immobilized dead algal cells followed pseudo-second order kinetics.

Original languageEnglish
Pages (from-to)1767-1773
Number of pages7
JournalProcess Biochemistry
Volume39
Issue number11
DOIs
Publication statusPublished - Jul 30 2004

Keywords

  • Algal cells
  • Biosorption
  • Immobilization
  • Isotherms
  • Nickel

ASJC Scopus subject areas

  • Bioengineering
  • Biochemistry
  • Applied Microbiology and Biotechnology

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