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Journal of Applied Sciences
  Year: 2011 | Volume: 11 | Issue: 14 | Page No.: 2536-2545
DOI: 10.3923/jas.2011.2536.2545
 
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Treatment of Aqueous Solution of Lead Content by using Natural Mixture of Kaolinite-Albite-Montmorillonite-Illite Clay

Francois Eba, Jean Aubin Ondo, Soumahoro Gueu, Joseph Ndong Nlo, Raphinos Kouya Biboutou and Benjamin Kouassi Yao

Abstract:
The possible use of clay from Bikougou (Gabon), as an adsorbent, for the removal of lead from waterwaste was investigated. The experiments were conducted using batch technique at 308 K and pH 4. The adsorption of Pb (II) ions in aqueous solution on clay has been studied as function of pH, concentration, time and temperature. Its efficiency increased with increasing of pH (from 2 to 8), Pb (II) ions in aqueous solution (pH higher 3), contact time of equilibration and temperature. The experimental data follow the Langmuir isotherm with correlation coefficient higher than 0.99 and maximum adsorption capacities varying between 24.12 to 25.64 mg g-1 at pH 4 and temperatures ranged between 308 and 318 K. Adsorptions kinetics obeys to a pseudo-second-order model with linear correlation coefficient higher than 0.96. Calculated and experimental amounts of Pb (II) ions adsorbed are in the same order. The negative Gibbs free energy value corresponds to a simultaneous process. The great capability of Bikougou clay to remove Pb (II) ions from aqueous solution demonstrated its potential as a low cost effective way to remediate Pb-contaminated water.
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How to cite this article:

Francois Eba, Jean Aubin Ondo, Soumahoro Gueu, Joseph Ndong Nlo, Raphinos Kouya Biboutou and Benjamin Kouassi Yao, 2011. Treatment of Aqueous Solution of Lead Content by using Natural Mixture of Kaolinite-Albite-Montmorillonite-Illite Clay. Journal of Applied Sciences, 11: 2536-2545.

DOI: 10.3923/jas.2011.2536.2545

URL: https://scialert.net/abstract/?doi=jas.2011.2536.2545

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