Results 181 to 190 of about 10,116 (219)
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Percolation bacterial leaching of low-grade chalcopyrite using acidophilic microorganisms
Korean Journal of Chemical Engineering, 2008Bioleaching studies were carried out in percolation columns using low-grade copper containing rock (granite). The lixiviant consisted of acidified ferric sulfate containing acidophilic microorganisms. The iron oxidizing strain was isolated from Malanjkhand mine water and after adaptation the iron oxidation observed to be 500 mg/L/h. Leaching parameters
Karanam Srinivasa Rao +7 more
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The Biofilm Lifestyle of Acidophilic Metal/Sulfur-Oxidizing Microorganisms
2016Microrganisms are well known for their unique ability to thrive in different lifestyles (e.g. planktonic or sessile) and environments, even within extreme ones. The most common and widespread lifestyle of microbes on earth is in form of biofilms, associated colonies of microorganisms embedded in a matrix of extracellular polymeric substances (EPS ...
Ruiyong Zhang +4 more
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Extreme zinc tolerance in acidophilic microorganisms from the bacterial and archaeal domains
Extremophiles, 2012Zinc can occur in extremely high concentrations in acidic, heavy metal polluted environments inhabited by acidophilic prokaryotes. Although these organisms are able to thrive in such severely contaminated ecosystems their resistance mechanisms have not been well studied.
Stefanie, Mangold +4 more
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Applied Biochemistry and Microbiology, 2009
Quantitative and qualitative changes in the content of elements in the solid and liquid phases occurred as the pulp moved through fermenters during biooxidation of an ore flotation concentrate. The association of microorganisms were adapted for utilizing sulfur-containing substrates; however, the rate of their oxidation was insufficient, which led to ...
A A, Revenko +5 more
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Quantitative and qualitative changes in the content of elements in the solid and liquid phases occurred as the pulp moved through fermenters during biooxidation of an ore flotation concentrate. The association of microorganisms were adapted for utilizing sulfur-containing substrates; however, the rate of their oxidation was insufficient, which led to ...
A A, Revenko +5 more
openaire +2 more sources
Influence of Calcium Nitrate on Microbial Community Structure of Acidophilic Microorganisms
Advanced Materials Research, 2014The influence of different concentrations of calcium nitrate on the growth and activity of acidophilic microorganisms were studied and the microbial community structures were compared by 16S rRNA gene clone library analysis. The addition of Ca (NO3)2 has a certain effect on the solution potential, and that the time needed to reach the steady potential ...
Wen Juan Li +5 more
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Resistance of Moderately Thermophilic Acidophilic Microorganisms to Ferric Iron Ions
Solid State Phenomena, 2017Resistance of microorganisms predominating in biohydrometallurgical processes including bacteria of the genus Sulfobaсillus and archaea of the genus Acidiplasma to ferric iron ions was studied. Capabilities of the strains for growth and ferrous iron oxidation in the media containing high concentrations of ferric iron ions (of 250 to 1000 mM) were ...
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Electromicrobiology: the ecophysiology of phylogenetically diverse electroactive microorganisms
Nature Reviews Microbiology, 2021Derek R Lovley
exaly
[Leaching of nonferrous metals from copper-smelting slag with acidophilic microorganisms].
Prikladnaia biokhimiia i mikrobiologiia, 2015The leaching process of copper and zinc from copper converter slag with sulphuric solutions of trivalent iron sulphate obtained using the association of acidophilic chemolithotrophic microorganisms was investigated. The best parameters of chemical leaching (temperature 70 degrees C, an initial concentration of trivalent iron in the leaching solution of
M I, Murav'ev, N V, Fomchenko
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Discovering untapped biochemistry in microorganisms from hidden corners
Nature Reviews Microbiology, 2022Zhiying Zhao, Yasuo Yoshikuni
exaly