Adsorption of Toxic Ni (II) from an Aqueous Solution by Bentonite
International Journal of Ecotoxicology and Ecobiology
Volume 2, Issue 4, December 2017, Pages: 158-165
Received: Aug. 16, 2017;
Accepted: Aug. 28, 2017;
Published: Nov. 30, 2017
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Soad Mohamed Sallam, Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
Abeer El-Saharty, National Institute of Oceanography and Fishers, Alexandria, Egypt
Abdel-Moniem Ahmed, Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
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In this study, the adsorption potential of bentonite for removal of Ni(II) ions from wastewater has been investigated. The study involves batch type experiments to investigate the effect of initial concentration, adsorbent dose, agitation speed, contact time, temperature and pH of the solution on adsorption process and the optimum conditions were evaluated. The adsorption process fits pseudo-second order kinetic models. Langmuir and Freundich adsorption isotherm models were applied to analyze adsorption data and both were found to be applicable to the adsorption process. Thermodynamic parameters, e.g., ∆Go, ∆So and ∆Ho of the on-going adsorption process have also been calculated and the sorption process was found to be endothermic. Finally, it can be seen that Bentonite was found to be more effective for the removal of Ni(II) at the same experimental conditions.
Waste Water, Nickel, Bentonite, Adsorption
To cite this article
Soad Mohamed Sallam,
Adsorption of Toxic Ni (II) from an Aqueous Solution by Bentonite, International Journal of Ecotoxicology and Ecobiology.
Vol. 2, No. 4,
2017, pp. 158-165.
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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