Reductive Dissolution of Ferric Iron in Laterite Overburden Using Acidithiobacillus Spp. and Neutrophilic Iron-Reducing Consortia

Jeannette Marrero; Orquidea Coto; Axel Schippers

doi:10.4028/www.scientific.net/AMR.1130.351

Paper Titles

Blue-Copper Proteins: Expression of Coding Genes from Sulfobacillus Spp. and Iron Oxidation in Column Bioleaching Tests
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Bioleaching of Chalcopyrite by Thermophilic Archaea
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Comparative Study of Iron and Sulfur Speciation Transformation of Pyrite and Marcasite by Extreme Thermophilic Archaea Acidianus manzaensis
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Reductive Dissolution of Iron Oxides and Manganese Bioleaching by Acidiphilium cryptum JF-5
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Reductive Dissolution of Ferric Iron in Laterite Overburden Using Acidithiobacillus Spp. and Neutrophilic Iron-Reducing Consortia
p.351

Primary Copper Ore Leaching by Leaching Solution Adjusted Oxidation-Reduction Potential in Column
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Bioprocess for Leaching of Copper Concentrate
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Bioleaching of Orpiment (As₂S₃) in Absence of Fe³⁺
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Insights into the Active Carbon Fixation Pathways of a Microbial Community in a Chalcopyrite Bioleaching Column
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1130Reductive Dissolution of Ferric Iron in Laterite...

Reductive Dissolution of Ferric Iron in Laterite Overburden Using Acidithiobacillus Spp. and Neutrophilic Iron-Reducing Consortia

Abstract:

Cuba is considered as one of the top world producer of nickel and cobalt. The laterite ore containing nickel and cobalt is mined after first removing an overburden of a long strip of soil and rock. The laterite has a high content of iron oxide (63%), which has to be removed in order to recover the nickel and cobalt. This study reports on the kinetics of reductive dissolution of the Fe(III) from the overburden by two native neutrophilic iron-reducing consortia as well as Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans. All of the organisms mobilized the ferric iron in the laterite by reducing it to Fe(II). The AeRD process using At. thiooxidans was far more efficient in extracting total iron than the AnRD process using At. ferrooxidans.

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Periodical:

Advanced Materials Research (Volume 1130)

Pages:

351-354

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1130.351

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Online since:

November 2015

Authors:

Jeannette Marrero, Orquidea Coto, Axel Schippers*

Keywords:

Acidithiobacillus, Bioleaching, Consortia, Ferric Iron Reduction, Laterite Overburden, Neutrophilic Iron Reducing Bacteria

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