African Journal of
Pure and Applied Chemistry

  • Abbreviation: Afr. J. Pure Appl. Chem.
  • Language: English
  • ISSN: 1996-0840
  • DOI: 10.5897/AJPAC
  • Start Year: 2007
  • Published Articles: 357

Full Length Research Paper

Influence of pH on the uptake of toluene from water by the composite poly (4-vinylpyridinium)-maghnite

M. A. Zenasni1*, S. Benfarhi2, A. Mansri3, H. Benmehdi1, B. Meroufel1, J. Desbrieres4 and R. Dedriveres4
1Department of  Sciences, Faculty of Sciences and Technology, University of Bechar, 08000 Bechar, Algeria. 2Department of Chemistry, Faculty of Sciences, University of Batna, 05000 Batna, Algeria. 3Department of Chemistry, Faculty of Sciences, University of Tlemcen, 13000 Tlemcen, Algeria 4University of Pau, Helioparc Pau Pyrenees, 64053 Pau Cedex 09, France
Email: [email protected]

  •  Accepted: 06 December 2011
  •  Published: 10 December 2011


The objective of this study is to investigate the effects of the degree of α ionization on the rate uptake of organic pollutant (toluene) by poly (4-vinylpyridinium)-maghnite. Two-step experiment was carried out where the organophilic maghnite adsorbent was prepared in the first step and toluene was adsorbed on maghnite in the second step. This material organophilic maghnite was prepared by exchanging the organic polycation as poly (4-vinylpyridinium) chloride (PVPS) for sodium (Na+) on the layer surface of clay. This process of wastewater treatment is of interest for the wastes stabilisation in which toluene contaminations occurs. Batch adsorption studies were conducted to evaluate the effects of initial toluene concentration. The results show that the two-step process is an efficient, simple and low cost technological way for the removal of organic pollutants from water.


Key words: Adsorption, organic pollutant, P4VP, maghnite, organoclay.