Copper and zinc removal from aqueous solution by mixed mineral systems II: the role of solution composition and aging

Egirani, D, Baker, AR and Andrews, JE (2005) Copper and zinc removal from aqueous solution by mixed mineral systems II: the role of solution composition and aging. Journal of Colloid and Interface Science, 291 (2). pp. 326-333. ISSN 1095-7103

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Abstract

This study investigates Cu and Zn removal onto binary mixed mineral sorbents from simulated wastewater, relevant to streams impacted by acid mine drainage and effluents. Mixed suspensions of kaolinite/montmorillonite and kaolinite/goethite exhibited different sorption behavior from the single mineral components, reducing Cu and Zn removal (except Cu sorbed on montmorillonite/goethite) over the range of pH investigated. Cu and Zn removal by the electrolyzed systems showed a complex response to increased ionic strength, which increased solid concentration, leading to lower Cu and Zn sorption. Enhanced Cu sorption on the montmorillonite/goethite as age increased may be attributed to increased hydroxylation of the mineral surface resulting in the formation of new reactive sites.

Item Type: Article
Faculty \ School: Faculty of Science > School of Environmental Sciences
Depositing User: Rachel Snow
Date Deposited: 02 Mar 2011 15:34
Last Modified: 24 Jul 2019 16:19
URI: https://ueaeprints.uea.ac.uk/id/eprint/25549
DOI: 10.1016/j.jcis.2005.05.006

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