Biotechnology in gold processing

Natarajan, KA (1993) Biotechnology in gold processing. In: Bulletin of Materials Science, 16 (6). pp. 501-508.

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Abstract

The applicability of a biotechnological approach for extracting gold from lean grade and refractory ores and from tailings is analysed. Microbiological as well as physicochemical characteristics of various leaching bacteria are outlined. Technological aspects of bioleaching of refractory gold-bearing concentrates in specially designed bioreactors are illustrated with emphasis on control parameters and use of metal and temperature-tolerant strains. Commercial operations prevalent across the world are detailed and the relevance of biomineral technology for augmentation of gold production in India brought out.

Item Type:	Journal Article
Publication:	Bulletin of Materials Science
Publisher:	Springer
Additional Information:	Copyright of this article belongs to Springer.
Keywords:	Bioleaching;Thiobacillus ferrooxidans;refractory gold ores;bioreactors;biosorption;biodegradation.
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	10 Jul 2008
Last Modified:	28 Feb 2017 06:13
URI:	http://eprints.iisc.ac.in/id/eprint/14890

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