Results 191 to 200 of about 4,911 (215)
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Hydrometallurgy, 2003
The aim of this investigation was to determine the efficacy of covellite bioleaching using pure cultures of Acidithiobacillus ferrooxidans or Acidithiobacillus thiooxidans and a mixed culture composed of At. thiooxidans and Leptospirillum ferrooxidans. The experiments were carried out in shake flasks with or without iron(II) (1 g/L as ferrous sulphate)
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The aim of this investigation was to determine the efficacy of covellite bioleaching using pure cultures of Acidithiobacillus ferrooxidans or Acidithiobacillus thiooxidans and a mixed culture composed of At. thiooxidans and Leptospirillum ferrooxidans. The experiments were carried out in shake flasks with or without iron(II) (1 g/L as ferrous sulphate)
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2010 International Conference on Chemistry and Chemical Engineering, 2010
In this investigation, a spent processing catalyst from one of the oil refineries in Iran was initially characterized physically and chemically. Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans were used to mobilize aluminum, cobalt, molybdenum and nickel from hazardous spent catalysts.
R. Mafi Gholami +2 more
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In this investigation, a spent processing catalyst from one of the oil refineries in Iran was initially characterized physically and chemically. Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans were used to mobilize aluminum, cobalt, molybdenum and nickel from hazardous spent catalysts.
R. Mafi Gholami +2 more
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Bioleaching of chalcopyrite by Acidithiobacillus ferrooxidans
Minerals Engineering, 2013Acidithiobacillus ferrooxidans (A. ferrooxidans) was selected to experimentally study the effects of bacteria on the oxidation of chalcopyrite. The results indicated that A. ferrooxidans remarkably promoted the oxi- dation of chalcopyrite. The pH of the cell broth medium was observed to increase and then decrease dur- ing the bioleaching experiment ...
XingQing Zhao +5 more
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The pyrite iron cycle catalyzed by Acidithiobacillus ferrooxidans
Journal of Mathematical Biology, 2013In this paper, we study a model of the biotic pyrite iron cycle catalyzed by bacteria Acidithiobacillus ferrooxidans, in mining activity sites waste dumps. Chemical reactions, reaction rates and the population growth model are mostly taken from the existing literature. Analysis of the corresponding dynamical system shows the existence of up to four non-
Dumett, Miguel A., Keener, James P.
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Strain Polymorphism of the Plasmid Profiles in Acidithiobacillus ferrooxidans
Microbiology, 2002Plasmid profiles were studied in 27 Acidithiobacillus ferrooxidans strains isolated from different geographic zones and substrates differing in the composition of the main sulfide minerals, and also in experimentally obtained strains with acquired enhanced resistance to the ions of heavy metals (Fe, Ni, Cu, Zn, As).
T F, Kondrat'eva +4 more
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Biocompatibility evaluation of magnetosomes formed by Acidithiobacillus ferrooxidans
Materials Science and Engineering: C, 2012Magnetite nanocrystal has been extensively used in biomedical field. Currently, an interesting alternative to synthetic magnetic Fe3O4 nanoparticles, called magnetosome, has been found in magnetotactic bacteria. It has been reported that Acidithiobacillus ferrooxidans (At. ferrooxidans) has a potential to synthesize magnetosome.
Lei, Yan +6 more
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Iron and sulfur oxidation pathways of Acidithiobacillus ferrooxidans
World Journal of Microbiology and Biotechnology, 2019Acidithiobacillus ferrooxidans is a gram-negative, autotrophic and rod-shaped bacterium. It can gain energy through the oxidation of Fe(II) and reduced inorganic sulfur compounds for bacterial growth when oxygen is sufficient. It can be used for bio-leaching and bio-oxidation and contributes to the geobiochemical circulation of metal elements and ...
Yue, Zhan +6 more
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Weathering of Biotite inAcidithiobacillus ferrooxidansCultures
Geomicrobiology Journal, 2011The purpose of this study was to assess the weathering of biotite under conditions simulating an active bioleaching environment. Finely ground biotite was contacted with Acidithiobacillus ferrooxidans culture solutions for up to 120 days. Biotite was altered under these conditions to interstratified structures comprised of mixed layers of biotite and ...
Tariq M. Bhatti +3 more
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Genetic engineering of the acidophilic chemolithoautotroph Acidithiobacillus ferrooxidans
Trends in Biotechnology, 2022Yuta Inaba, Scott Banta
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