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ISSN: 2157-7587

Hydrology: Current Research
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  • Research Article   
  • Hydrol Current Res 2011, Vol 2(1): 107
  • DOI: 10.4172/2157-7587.1000107

Removal of Transition Metals from Dilute Aqueous Solution by Carboxylic Acid Group containing Absorbent Polymers

Z S Liu1* and G L Rempel2
1National Center for Agricultural Utilization Research, ARS/USDA, 1815 N. University Street, , Peoria, IL 61604, USA
2Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada
*Corresponding Author : Dr. Z S Liu, National Center for Agricultural Utilization Research, ARS/USDA, 1815 N. University Street, Peoria, IL 61604, USA, Tel: 1 309-681-6104, Fax: 1 309-681-6524, Email: [email protected]

Received Date: Feb 20, 2011 / Accepted Date: Mar 29, 2011 / Published Date: Apr 22, 2011

Abstract

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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