Pyrite oxidation under initially neutral pH conditions and in the presence of Acidithiobacillus ferrooxidans and micromolar hydrogen peroxide [PDF]
Hydrogen peroxide (H2O2) at a micromolar level played a role in the microbial surface oxidation of pyrite crystals under initially neutral pH. When the mineral-bacteria system was cyclically exposed to 50 μM H2O2, the colonization of Acidithiobacillus ...
Lin, C., Ma, Y.
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The biomining microbes which extract metals from ores that have been applied in mining processes worldwide hold potential for harnessing space resources.
Anna H. Kaksonen +5 more
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Molecular genetic analysis of a thioredoxin gene from Thiobacillus ferrooxidans [PDF]
The Thiobacillus ferrooxidans thioredoxin gene, trxA, was isolated by its ability to complement an Escherichia coli gshA trxA mutant which was otherwise unable to grow on minimal medium lacking glutathione. The T. ferrooxidans thioredoxin also enabled the in vivo reduction by E.
R E, Powles, S M, Deane, D E, Rawlings
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Mechanisms of Bacterial Extracellular Electron Exchange. [PDF]
The biochemical mechanisms by which microbes interact with extracellular soluble metal ions and insoluble redox-active minerals have been the focus of intense research over the last three decades. The process presents two challenges to the microorganism;
Butt, Julea N. +5 more
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Corrosion and Electrochemical Oxidation of a Pyrite by Thiobacillus ferrooxidans [PDF]
The oxidation of a pure pyrite by Thiobacillus ferrooxidans is not really a constant phenomenon; it must be considered to be more like a succession of different steps which need characterization. Electrochemical studies using a combination of a platinum electrode and a specific pyrite electrode (packed-ground-pyrite
Mustin, C. +3 more
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Background Acidithiobacillus ferrooxidans is an acidophilic, chemolithoautotrophic bacterium that has been successfully used in metal bioleaching. In this study, an analysis of the A.
Ribeiro Daniela A +5 more
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Application of Acidithiobacillus ferrooxidans for recovering metals from electronic waste dust [PDF]
The paper discusses metal recovery from metallic wastes by means of pure chemical and biological leaching in an acidic medium. The research tested whether it is possible to remove Cu, Al, Sn and Ag from the dust formed during processing of electronic ...
Blažek, Vladislav +3 more
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Visualisation of the interaction between Acidithiobacillus ferrooxidans and oil shale by atomic force microscopy [PDF]
This study visually documents the mechanical contact and interaction between the bacterial cells of two biogeocenotically different strains of Acidithiobacillus ferrooxidans (At. ferrooxidans) and oil shale containing pyrite.
Milić Jelena S. +4 more
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U mobilization and associated U isotope fractionation by sulfur-oxidizing bacteria
Uranium (U) contamination of the environment causes high risk to health, demanding for effective and sustainable remediation. Bioremediation via microbial reduction of soluble U(VI) is generating high fractions (>50%) of insoluble non-crystalline U(IV)
C. D. Rosendahl +3 more
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Advances in bioleaching as a sustainable method for metal recovery from e-waste:A review [PDF]
Electronic waste (e-waste) accumulation on earth is a serious environmental challenge. The need for heavy metal recovery, together with the profitability of precious and base metals, are strong incentives for researchers to find a sustainable method for ...
Bahaloo-Horeh, Nazanin +4 more
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