Results 41 to 50 of about 13,609 (251)

Microbial Recovery and Kinetic Study of Vanadium Dissolution from Pure Vanadium Oxide in Order to Extract it from Uranium Ore Residues [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2013
Vanadium is an expensive and practical metal in different industries, and in Iran, in particular uranium ore residues contain a considerable amount of this metal.
S. J Safdari   +3 more
doaj  

Phylogeny, Divergent Evolution, and Speciation of Sulfur-Oxidizing Acidithiobacillus Populations

open access: yesBMC Genomics, 2019
Background Habitats colonized by acidophiles as an ideal physical barrier may induce genetic exchange of microbial members within the common communities, but little is known about how species in extremely acidic environments diverge and evolve.
Xian Zhang   +6 more
doaj   +1 more source

The pio Operon Is Essential for Phototrophic Fe(II) Oxidation in Rhodopseudomonas palustris TIE-1 [PDF]

open access: yes, 2006
Phototrophic Fe(II)-oxidizing bacteria couple the oxidation of ferrous iron [Fe(II)] to reductive CO2 fixation by using light energy, but until recently, little has been understood about the molecular basis for this process. Here we report the discovery,
Jiao, Yongqin, Newman, Dianne K.
core   +4 more sources

Investigation of Interface Reactions and Electrochemical Behaviors of Chalcopyrite Dissolution in Different Leaching Mediums

open access: yesInternational Journal of Electrochemical Science, 2013
In this work, a comparative study on the electrochemical behavior of massive chalcopyrite electrode in different leaching mediums was carried out to investigate the different interface reactions.
Jun Wang   +4 more
doaj   +1 more source

Optimization of Biodesulfurization of sour heavy crude oil.

open access: yesPLoS ONE, 2023
Biodesulfurization of fossil fuels is a promising method for treating the sour oil due to its environmental friendliness and ability to get rid of the recalcitrant organosulfur compounds.
Wisam Mohammed Kareem Al-Khazaali   +1 more
doaj   +1 more source

Genes and pathways for CO2 fixation in the obligate, chemolithoautotrophic acidophile, Acidithiobacillus ferrooxidans, Carbon fixation in A. ferrooxidans [PDF]

open access: yes, 2010
Background: Acidithiobacillus ferrooxidans is chemolithoautotrophic gamma-proteobacterium that thrives at extremely low pH (pH 1-2). Although a substantial amount of information is available regarding CO2 uptake and fixation in a variety of facultative ...
Mario Esparza   +4 more
core   +2 more sources

Bioleaching and Electrochemical Behavior of Chalcopyrite by a Mixed Culture at Low Temperature

open access: yesFrontiers in Microbiology, 2021
Low-temperature biohydrometallurgy is implicated in metal recovery in alpine mining areas, but bioleaching using microbial consortia at temperatures <10°C was scarcely discussed.
Tangjian Peng   +14 more
doaj   +1 more source

Microbial catalysis of the oxygen reduction reaction for microbial fuel cells: a review. [PDF]

open access: yes, 2012
The slow kinetics of the electrochemical oxygen reduction reaction (ORR) is a crucial bottleneck in the development of microbial fuel cells (MFCs). This article firstly gives an overview of the particular constraints imposed on ORR by MFC operating ...
Bergel, Alain   +2 more
core   +4 more sources

Essential Role of σ Factor RpoF in Flagellar Biosynthesis and Flagella-Mediated Motility of Acidithiobacillus caldus

open access: yesFrontiers in Microbiology, 2019
Acidithiobacillaceae, an important family of acidophilic and chemoautotrophic sulfur or iron oxidizers, participate in geobiochemical circulation of the elements and drive the release of heavy metals in mining associated habitats.
Chun-Long Yang   +8 more
doaj   +1 more source

Sulfur Oxygenase Reductase (Sor) in the Moderately Thermoacidophilic Leaching Bacteria: Studies in Sulfobacillus thermosulfidooxidans and Acidithiobacillus caldus

open access: yesMicroorganisms, 2015
The sulfur oxygenase reductase (Sor) catalyzes the oxygen dependent disproportionation of elemental sulfur, producing sulfite, thiosulfate and sulfide.
Claudia Janosch   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy