Adsorption of Lead (II) and Zinc (II) from Aqueous Solution by Bituminous coal |
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| Authors: | Ahmed Melegy |
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| Institution: | (1) Department of Geological Sciences, National Research Center, Dokki, Cairo, Egypt |
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| Abstract: | Activated carbons have been proven to be effective adsorbents for the removal of Pb (II) and Zn (II) dissolved in aqueous
media. The study of adsorption of Pb (II) and Zn (II) on two different size fractions from a composite coal sample of Maghara
coal mine, C63 (63–125 μm) and C250 (125–250 μm) is presented in this paper. C63 and C250 were treated in water solutions of 50 mM lead and zinc acetates. X-ray photoelectron spectroscopy (XPS) was used to characterize
the starting and treated coal surfaces. The high surface area and surface functional groups (carboxy and phenolic) enable
activated bituminous coal of Maghara to act as efficient adsorbents for removing dissolved Pb (II) and Zn (II) in alkaline
medium. |
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