Results 51 to 60 of about 2,547 (199)

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  

Effects of biodeterioration on the mechanical properties of concrete [PDF]

open access: yes, 2015
International audienceConcrete biodeterioration in sewers and structures subjected to environments rich in hydrogen sulfide has been related to the activity of sulfur oxidizing bacteria (SOB).
Bastidas-Arteaga, Emilio   +3 more
core   +4 more sources

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

open access: yesBMC 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   +4 more
doaj   +1 more source

Genetic variability in Acidithiobacillus spp. – a working horse of environmental biotechnologies

open access: yesNova Biotechnologica et Chimica, 2018
The genus Acidithiobacillus comprises 7 species of Gram-negative obligatory acidophilic chemolithotrophic bacteria that derive energy mainly from the oxidation of reduced sulphur compounds. Four of the species also catalyse the dissimilatory oxidation of
Pristas Peter   +6 more
doaj   +1 more source

Engineering microbial consortia to enhance biomining and bioremediation [PDF]

open access: yes, 2012
In natural environments microorganisms commonly exist as communities of multiple species that are capable of performing more varied and complicated tasks than clonal populations.
Karl D. Brune, Travis S. Bayer
core   +3 more sources

Effect of chloride salts on biodesulfurization process of a colombian coal

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2013
A chloride salts medium was evaluated in biodesulfurization processes of a Colombian coal (2.34% total sulfur: 1.34% as pyritic, 0.90% as organic and 0.10% from sulfates), employing a consortium of Acidithiobacillus ferrooxidans and Acidithiobacillus ...
Gerardo Andrés Caicedo Pineda   +1 more
doaj   +3 more sources

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

open access: yesArchives 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.   +6 more
doaj   +1 more source

Application of Acidithiobacillus ferrooxidans for recovering metals from electronic waste dust [PDF]

open access: yes, 2018
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
core   +1 more source

Potentiality of Acidithiobacillus thiooxidans in Microbial Solubilization of Phosphate Mine Tailings [PDF]

open access: yesJournal of Degraded and Mining Lands Management, 2015
This paper deals with the solubilization behavior of the tailings produced by the floatation of a complex low grade phosphate ore. The composition of the tailings was essentially dolomite (52.04%) with minor amounts of phosphate, iron and aluminium ...
S Dhakar, N Ali, R S Chauhan, V Yadav
doaj   +1 more source

Bioleaching of Low Grade Uranium Ore of Saghand Mine [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2011
This study deals with bioleaching of the low grade uranium ore of Saghand mine in Iran using a mixed culture of mesophilic bacteria (Acidithiobacillus ferrooxidans, Acidithiobacillus thiooxidans and Leptospirillum ferrooxidans).
Mahmoud Abdollahy   +3 more
doaj  

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