Ferrous Iron and Pyrite Oxidation by “Acidithiomicrobium” Species

Abstract:

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Novel iron- and sulfur-oxidizing, moderate thermophiles were isolated from an acidic geothermal site and from a previously studied, pyrite-enrichment mixed culture (which also contained the related actinobacterium Acidimicrobium ferrooxidans). The novel species (proposed genus “Acidithiomicrobium”) grew autotrophically with ferrous iron at an optimum temperature of about 50°C, efficiently degraded pyrite at 55°C and also grew well autotrophically on sulfur. The extensive dissolution of pyrite during autotrophic growth contrasted with a requirement for yeast extract for significant growth of the related Acidimicrobium ferrooxidans.

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:

271-274

DOI:

10.4028/www.scientific.net/AMR.71-73.271

Citation:

C. S. Davis-Belmar and P. R. Norris, "Ferrous Iron and Pyrite Oxidation by “Acidithiomicrobium” Species", Advanced Materials Research, Vols. 71-73, pp. 271-274, 2009

Online since:

May 2009

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Price:

$35.00

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