Thermophilic vs. mesophilic bioleaching process performance

Thermophilic vs. mesophilic bioleaching process performance

: Mesophilic and thermophilic mineral oxidising microbial cultures were compared for their capacity to leach both a complex pyritic and an arsenopyritic ore, aiming at copper and gold recovery, respectively. The mesophilic cultures are primarily based on the activity of Thiobacillus‐type microorgani...

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Bibliographic Details
Published in:FEMS Microbiology Reviews [FEMS MICROBIOL. REV.]. Vol. 11, no. 1-3. 1993 Vol. 11; no. 1‐3; pp. 97 - 102
Main Authors: Duarte, JoséC., Estrada, Paula C., Pereira, Paula C., Beaumont, Helena P.
Format: Journal Article Conference Proceeding
Language:English
Published: Oxford, UK Blackwell Publishing Ltd 01-07-1993
Blackwell
Subjects:
Biohydrometallurgy. Microbial leaching
Bioleaching
Biological and medical sciences
Biotechnology
Copper extraction
Fundamental and applied biological sciences. Psychology
Gold recovery
Industrial applications and implications. Economical aspects
Thermophilic bacteria
Thiobacillus
Thiobacillus ferrooxidans
Congress
Gold
Temperature
Ore
Environmental factor
Bacterial leaching
Bioreactor
Pyrite
Microorganism culture
Bacteria
Copper
Thiobacillus ferrooxidans
Comparative study
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Summary:: Mesophilic and thermophilic mineral oxidising microbial cultures were compared for their capacity to leach both a complex pyritic and an arsenopyritic ore, aiming at copper and gold recovery, respectively. The mesophilic cultures are primarily based on the activity of Thiobacillus‐type microorganisms, while the thermophile characteristics place them in the sulphur metabolizers branch df Archaebacteria. Study of key process variables and determination of their optimum values were carried out to provide a basis for significant physiological and technical comparison. Each microbial culture finds a preferential process application, depending on the choice of the reactor and ore.
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SourceType-Conference Papers & Proceedings-2
ISSN:0168-6445
1574-6976
DOI:10.1111/j.1574-6976.1993.tb00272.x