Results 91 to 100 of about 8,912 (205)

Oxidative dissolution of bornite by Acidithiobacillus ferrooxidans

Process Biochemistry, 2010
Abstract The oxidation of finely ground (−200 μm) bornite (Cu 5 FeS 4 ) by Acidithiobacillus ferrooxidans was evaluated in oxygen uptake and shake flasks experiments. The oxidation was a net acid-consuming reaction. Residual bornite was not detected by X-fray diffraction in solids after 2 days of contact in acid leach solution, indicating that the ...
Bevilaqua, D., Garcia, O., Tuovinen, O. H.   +2 more
openaire   +2 more sources

Comparative genomic analysis of carbon and nitrogen assimilation mechanisms in three indigenous bioleaching bacteria: predictions and validations

BMC Genomics, 2008
Background Carbon and nitrogen fixation are essential pathways for autotrophic bacteria living in extreme environments. These bacteria can use carbon dioxide directly from the air as their sole carbon source and can use different sources of nitrogen such
Ehrenfeld Nicole, Ugalde Juan A, Levicán Gloria, Maass Alejandro, Parada Pilar   +4 more
doaj   +1 more source

Toxin-Antitoxin Systems in the Mobile Genome of Acidithiobacillus ferrooxidans

PLoS ONE, 2014
Toxin-antitoxin (TA) systems are genetic modules composed of a pair of genes encoding a stable toxin and an unstable antitoxin that inhibits toxin activity. They are widespread among plasmids and chromosomes of bacteria and archaea. TA systems are known to be involved in the stabilization of plasmids but there is no consensus about the function of ...
Bustamante, Paula, Tello, Mario, Orellana, Omar   +2 more
openaire   +7 more sources

Resistencia extrema al cobre por un consorcio bacteriano conformado por Sulfobacillus spp. y Acidithiobacillus ferrooxidans

REBIOL, 2019
RESUMEN La sensibilidad al cobre por parte de microorganismos biolixiviadores es uno de los principales problemas que enfrenta la minería para mejorar los procesos de biolixiviación.
Omar D. Pairazamán Quiroz, José E. Neciosup Quesñay, Yeni S. Valdez Anco, Fabián A. Veliz De La Vega, Paola J. Barrios Cuevas, Heber M. Robles Castillo, Mario R. Esparza Mantilla   +6 more
doaj  

Acidithiobacillus ferrooxidans Leaching of Silica-Sulfide Gold Ores from May-Hibey Deposits, Tigray, Ethiopia

International Journal of Chemical Engineering
Oxidative leaching is an inexpensive alternative to using chemical cyanide extraction methods for gold from low-grade gold sulfide. Oxidation of finely ground gold-bearing ore by Acidithiobacillus ferrooxidans was evaluated in terms of cell density, pH ...
Goitom Gebreyohannes Berhe, Desta Berhe Sbhatu, Samuel Estifanos Gebre, Kiros Hagos Abay, Genet Gebryohannes Mhretu, Gebrekidan Mebrahtu Tesfamariam, Samuel Alemayehu Lapiso, Mulugeta Sisay Cheru, Afewerk Gebre Meressa   +8 more
doaj   +1 more source

The Effect of Specific Conditions on Cu, Ni, Zn and Al Recovery from PCBS Waste Using Acidophilic Bacterial Strains

Archives of Metallurgy and Materials, 2016
The objective of this work was to evaluate the influence of static, stirring and shaking conditions on copper, zinc, nickel and aluminium dissolution from printed circuit boards (PCBs) using the mixed acidophilic bacterial culture of Acidithiobacillus ...
Mrážiková A., Kaduková J., Marcinčáková R., Velgosová O., Willner J., Fornalczyk A., Saternus M.   +6 more
doaj   +1 more source

Influence of mobile genetic elements and insertion sequences in long- and short-term adaptive processes of Acidithiobacillus ferrooxidans strains. [PDF]

Sci Rep, 2023
Moya-Beltrán A, Gajdosik M, Rojas-Villalobos C, Beard S, Mandl M, Silva-García D, Johnson DB, Ramirez P, Quatrini R, Kucera J.   +9 more
europepmc   +1 more source

Fe/S Redox-Coupled Mercury Transformation Mediated by Acidithiobacillus ferrooxidans ATCC 23270 under Aerobic and/or Anaerobic Conditions. [PDF]

Microorganisms, 2023
Liu Y, Gu C, Liu H, Zhou Y, Nie Z, Wang Y, Chen L, Xia J.   +7 more
europepmc   +1 more source

Effect of ferrous iron loading on dewaterability, heavy metal removal and bacterial community of digested sludge by Acidithiobacillus ferrooxidans.

Journal of Environmental Management, 2021
Guiqin Cai, Majid Ebrahimi, Guanyu Zheng, A. Kaksonen, C. Morris, I. O'Hara, Zhanying Zhang   +6 more
semanticscholar   +1 more source

Influence of organic acids on pentlandite bioleaching by Acidithiobacillus ferrooxidans LR. [PDF]

3 Biotech, 2021
Giese EC.
europepmc   +1 more source