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Journal of Applied Sciences
  Year: 2007 | Volume: 7 | Issue: 14 | Page No.: 1864-1872
DOI: 10.3923/jas.2007.1864.1872
 
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Removal of Heavy Metal Ions (Pb2+, Cu2+) in Aqueous Solutions by Pterygota macrocarpa Sawdust

K. Adouby , L.C. Koffi Akissi , N. Eboua Wandan and B. Yao

Abstract:
The purpose of this study is the use of Pterygota macrocarpa sawdust as adsorbent for lead and copper removal into aqueous acid solutions. The results showed that the rate of removal is better for particle sizes lower than 0.5 mm, in the metal solutions at pH 3. The Langmuir, Freundlich and Temkin isotherms studies were allowed to determine the maximum capacity of adsorption of the sawdust; it is 115.61 and 24.02 mg g-1 for the lead and cooper removal, respectively. This study also showed that the metal ions removal is accompanied by a releasing of K+, Ca2+ and Mg2+ in the metal solutions. This use could constitute a way of valorisation of the sawdust, a main waste of the wood industry.
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How to cite this article:

K. Adouby , L.C. Koffi Akissi , N. Eboua Wandan and B. Yao , 2007. Removal of Heavy Metal Ions (Pb2+, Cu2+) in Aqueous Solutions by Pterygota macrocarpa Sawdust. Journal of Applied Sciences, 7: 1864-1872.

DOI: 10.3923/jas.2007.1864.1872

URL: https://scialert.net/abstract/?doi=jas.2007.1864.1872

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