African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12500

Full Length Research Paper

Equilibrium and kinetics studies of metal ion adsorption on dyed coconut pollens

Agiri, G. O.1*, Akaranta, O.2 and Ajayi, I. O.1
1Industrial Safety and Environmental Engineering Department, Petroleum Training Institute, Effurun, Delta State Nigeria. 2Department of Pure and Industrial Chemistry, University of Port Harcourt, Port Harcourt.
Email: [email protected]

  •  Accepted: 20 November 2006
  •  Published: 02 April 2007

Abstract

Batch equilibration studies were conducted to determine the nature of adsorption of Zn (II) and Cu (II) onto dyed coconut pollens. The nature of adsorption of metal ions was explained using the Langmuir equation. The calculated values of equilibrium parameter indicated favourable adsorption by the adsorbents. Also the calculated values of fractional attainment of equilibrium α, the intraparticle diffusion rate constant, Ka show that adsorption of metal ions is particle diffusion controlled. The adsorbent produced from coconut fibre can be used to remove heavy metals from aqueous solution with high efficiency.

 

Key words: Adsorption dynamics, fractional attianment of equilibrium, intraparticle diffusion.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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