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Microbially induced separation of arsenopyrite and bioremediation of arsenic

Chandraprabha, MN and Natarajan, KA (2009) Microbially induced separation of arsenopyrite and bioremediation of arsenic. In: Minerals and Metallurgical Processing, 26 (4). pp. 217-221.

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Official URL: http://www.smenet.org/minerals-and-metallurgical-p...

Abstract

This paper discusses the role of the mineral-adapted acidiphilic microorganism. Acidithiobacillus ferrooxidans in the beneficiation of arsenopyrite-containing multisulfides (pyrite and chalcopyrite) and the bioremediation of the resulting arsenical waste water. It was found that adaptation to minerals alters the surface properties of the microorganism. Bacterial adaptation to arsenopyrite and controlled bacterial adhesion to mineral surfaces lead to selectivity in arsenopyrite separation. Bioremoval of arsenic ions (both arsenite and arsenate ions) by Acidithiobacillus ferrooxidans is also discussed.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to Society for Mining, Metallurgy & Exploration.
Keywords: Acidithiobacillus ferrooxidans; Bioremediation; Arsenopyrite beneficiation
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 04 Dec 2009 05:47
Last Modified: 04 Dec 2009 05:47
URI: http://eprints.iisc.ernet.in/id/eprint/25055

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