Optimisation of Acid Bioleaching of Metals from Pyrithic Ashes

Elina A. Vestola; Jarno Mäkinen; Tero Korhonen; Raisa Neitola; Anna H. Kaksonen

doi:10.4028/www.scientific.net/AMR.825.520

Paper Titles

Bioleaching for Extraction of Metals and Detoxification of Activated Sludges
p.504

Influences of pH Buffers on the Growth of Acidithiobacillus thiooxidans and Biodesulfurization Efficiency
p.508

Evaluation of Plant Species for Phytoremediation of a Mining Waste from Andacollo, Neuquén-Argentina
p.512

Field Scale Phytoremediation Experiments on a Former U Mining Site and Further Processing of the Plant Material
p.516

Optimisation of Acid Bioleaching of Metals from Pyrithic Ashes
p.520

Staphylococcus equorum Isolated from Seabed as Potential Biotool to Cr(VI) Remediation
p.524

Copper Removal by Botryococcus braunii Biomass with Associated Production of Hydrocarbons
p.528

Characterization of U(VI) Sorption and Leaching on Clay Supported Biomass Sorbents
p.532

Recovery of Metals and Stabilization of Arsenic from (Bio-)Leaching Operations by Engineered Biological Processes
p.536

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 825Optimisation of Acid Bioleaching of Metals from...

Optimisation of Acid Bioleaching of Metals from Pyrithic Ashes

Abstract:

Solid waste from sulphuric acid production contains high concentrations of metals that are harmful if released to the environment. The purpose of this study was to evaluate the acid bioleaching of metals from a sample of pyritic ashes, consisting mainly of hematite. Bioleaching was tested in shake flasks and continuously stirred tank reactors (CSTR) inoculated with iron and sulphur oxidising acidophiles. Solubilisation of metals was mainly achieved through acid attack due to the formation of sulphuric acid by sulphur oxidising bacteria.

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Periodical:

Advanced Materials Research (Volume 825)

Pages:

520-523

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.825.520

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Online since:

October 2013

Authors:

Elina A. Vestola, Jarno Mäkinen, Tero Korhonen, Raisa Neitola, Anna H. Kaksonen

Keywords:

Bioleaching, Pyrithic Ash, Sulphur Oxidation, Waste

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References

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