Removal of Transition Metals from Dilute Aqueous Solution by Carboxylic Acid Group containing Absorbent Polymers
Received Date: Feb 20, 2011 / Accepted Date: Mar 29, 2011 / Published Date: Apr 22, 2011
A carboxylic acid group containing resin with cation exchange capacity, 12.67 meq/g, has been used to remove Cu2+, Co2+ and Ni2+ ions from dilute aqueous solution. The resin had Cu2+, Co2+ and Ni2+ removal capacity, 216 mg/g, 154 mg/g and 180 mg/g, respectively. The selectivity of the resin for Cu2+ over Co2+ and Ni2+ was investigated in the presence of 1.0 M or 0.5 M sodium chloride. The resin was found to offer high capacity and selectivity for Cu2+. The sorbed metal ions (Cu2+, Co2+ and Ni2+) were easily stripped with dilute HCl. The sorbed Co2+ and Ni2+ could also be stripped with 1.0M NaCl.
Keywords: Ion-exchange; Selectivity; Sodium chloride; Carboxylic acid group-containing absorbents
Citation: Liu ZS, Rempel GL (2011) Removal of Transition Metals from Dilute Aqueous Solution by Carboxylic Acid Group containing Absorbent Polymers. Hydrol Current Res 2: 107. Doi: 10.4172/2157-7587.1000107
Copyright: © 2011 Liu ZS, 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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