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

Egirani, D. E., Baker, A. R. and Andrews, J. E. (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
UEA Research Groups:	Faculty of Science > Research Groups > Centre for Ocean and Atmospheric Sciences Faculty of Science > Research Groups > Marine and Atmospheric Sciences (former - to 2017) Faculty of Science > Research Groups > Climate, Ocean and Atmospheric Sciences (former - to 2017) Faculty of Science > Research Groups > Geosciences Faculty of Science > Research Groups > Geosciences and Natural Hazards (former - to 2017)
Depositing User:	Rachel Snow
Date Deposited:	02 Mar 2011 15:34
Last Modified:	13 Oct 2025 16:32
URI:	https://ueaeprints.uea.ac.uk/id/eprint/25549
DOI:	10.1016/j.jcis.2005.05.006

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