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Microbial leaching of lateritic nickel ore

✍ Scribed by L. B. Sukla; V. V. Panchanadikar; R. N. Kar

Book ID
104723772
Publisher
Springer
Year
1993
Tongue
English
Weight
214 KB
Volume
9
Category
Article
ISSN
1573-0972

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✦ Synopsis

Lateritic nickel ore from the Sukinda Mines, Orissa, India, was leached using Thiobacillus ferrooxidans, Bacillus circulans, Bacillus licheniformis and Aspergillus niger at 5% (w/v) solid: liquid ratio for 5-20 days. Maximum leaching of Ni was achieved with B. circulans (85%) and Aspergillus niger (92%) after 20 days. Bacillus circulans showed significantly higher rate of leaching than the other organisms giving 80% Ni extraction after 15 days. The importance and usefulness of heterotrophic organisms in metal extraction are discussed.

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