Bioleaching of Enargite by Arsenic-Tolerant Acidithiobacillus Ferrooxidans

Abstract:

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Acidithiobacillus ferrooxidans was acclimatized to 1000 mg/L arsenic(V) and then used for the bioleaching of enargite (Cu3AsS4) at pH 2. Secondary minerals formed during the bioleaching of enargite were characterized by X-ray diffraction, FT- infrared spectroscopy, Raman spectroscopy and X-ray photoelectron spectroscopy. Oxidative dissolution of enargite resulted in the formation of elemental sulfur, arsenate and oxidized sulfur species including jarosites and possibly also schwertmannite at pH 2.

Info:

Periodical:

Advanced Materials Research (Volumes 71-73)

Edited by:

Edgardo R. Donati, Marisa R. Viera, Eduardo L. Tavani, María A. Giaveno, Teresa L. Lavalle, Patricia A. Chiacchiarini

Pages:

485-488

DOI:

10.4028/www.scientific.net/AMR.71-73.485

Citation:

K. Sasaki et al., "Bioleaching of Enargite by Arsenic-Tolerant Acidithiobacillus Ferrooxidans", Advanced Materials Research, Vols. 71-73, pp. 485-488, 2009

Online since:

May 2009

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Price:

$35.00

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