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Environmental aspects of bacterial oxidation with respect to the mining and processing of some sulfide minerals

Mandre, NR and Natarajan, KA (1987) Environmental aspects of bacterial oxidation with respect to the mining and processing of some sulfide minerals. In: Transactions of the Indian Institute of Metals, 40 (2). pp. 128-136.

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Abstract

The acid production potential of sulfide-containing ore and tailing samples from Au and Cu mining in the state of Karnataka, India, depended essentially on their mineralogical characteristics and the amount of S present in the samples. The acid-buffering capacities of the materials were in order: Cu tailings > Au tailings > Cu ore (+100 mesh) > Cu ore (+60 mesh) > Cu ore (+44 mesh) > Cu ore (+10 mesh). Thiobacillus ferrooxidans Enhanced acid production and heavy metal ion dissolution; bacterial oxidation is influenced by pH, sulfide minerals present, etc. High pH levels and a bactericide retarded bacterial oxidation.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Indian Institute of Metals.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 12 Mar 2008
Last Modified: 27 Aug 2008 13:14
URI: http://eprints.iisc.ernet.in/id/eprint/13272

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