alexa Biosorption of Pb2+ from Natural Water using Date Pits: A Green Chemistry Approach
ISSN: 2329-6798

Modern Chemistry & Applications
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Research Article

Biosorption of Pb2+ from Natural Water using Date Pits: A Green Chemistry Approach

Salem E Samra1, Bakir Jeragh2, Ahmed M EL-Nokrashy3 and Ahmed A El-Asmy1,2*
1Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt
2Chemistry Department, Faculty of Science, Kuwait University, Kuwait
3Central Laboratory of drinking water, Dakahliya Comp. for Water, Mansoura, Egypt
Corresponding Author : Ahmed A El-Asmy
Chemistry Department, Faculty of Science
Kuwait University, Kuwait
Tel: 009-656-673-4989
E-mail: [email protected]
Received June 06, 2014; Accepted August 21, 2014; Published August 25, 2014
Citation: Samra SE, Jeragh B, EL-Nokrashy AM, El-Asmy AA (2014) Biosorption of Pb2+ from Natural Water using Date Pits: A Green Chemistry Approach. Mod Chem appl 2:131. doi: 10.4172/2329-6798.1000131
Copyright: © 2014 Samra SE, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

Removal of Pb2+ ions from aqueous solutions by adsorption onto Date Pits (DP) has been investigated. The date pits (sorbent) may represent an environmental problem. The characteristic parameters (solution pH, initial concentration of Pb2+, sorbent dose, shaking time and temperature) influencing the adsorption process have been examined. pH=7 is found the best one having high floatability of 6 g l-1 dose of DP. The Freundlich and Langmuir were applied. The change in Gibbs free energy change (ΔGº), enthalpy (ΔHº) and entropy (ΔSº) were also calculated. Under the optimum experimental conditions employed, the removal of ~95% of Pb2+ was attained. The procedure was successfully applied to remove Pb2+ from natural water samples. The SEM image of DP before and after lead adsorption shows complete adsorption.

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