Results 61 to 70 of about 6,167 (220)

Petrographical and mineralogical analysis of coal after biological leaching [PDF]

Acta Montanistica Slovaca, 2000
For coal utilization the sulphur content is a decisive parameter for the quality of the coal. In many countries clean coal technologies have to be applied on the basis of regulations concerning fuel quality and emission standards for dust, CO, SO2 and ...
Kupka Daniel, Èurillová Dana, Sýkorová Ivana, Machajová Zlatica   +3 more
doaj  

Nitrogen Fixation by Thiobacillus ferrooxidans [PDF]

Journal of General Microbiology, 1978
Summary: Cultures of Thiobacillus ferrooxidans grown in the absence of a source of fixed nitrogen reduced acetylene to ethylene suggesting the presence of nitrogenase. This presumptive evidence has now been substantiated by the demonstration of the enrichment of 15N in the protein of the organism when grown under 15N2.
openaire   +1 more source

Synthetically Modified Tara and Oak Gall Nut Tannin‐Based Corrosion Inhibitors for Combating the Corrosive Influence of Acidithiobacillus thiooxidans on Mild Steel

International Journal of Corrosion, Volume 2024, Issue 1, 2024.
Natural tara and oak gall nut tannins, which lack corrosion inhibitive properties, were modified using gum arabic and tested against microbial corrosion induced by Acidithiobacillus thiooxidans under isothermal condition (28°C). Mild steel coated with the modified tannins was exposed to the causative under aerobic and anaerobic conditions. Based on the
Samuel Eshorame Sanni, Oreoluwa Okunade, Emeka Emmanuel Okoro, Babalola Aisosa Oni, Manikandan M.   +4 more
wiley   +1 more source

Cyanide residues biotreatment and their relation with public health

Revista Facultad Nacional de Salud Pública, 2010
Objective: To propose a bio-treatment for cyanide residues generated by medico-legal procedures and to identify risk factors from handling. Methodology: cyanide residues, from the Institute of Legal Medicine, Medellin, were characterized by their ...
Carmen L. Jaramillo C, Judith Betancur U, Ruth M. Agudelo C, Carmen L. Jaramillo C, Judith Betancur U, Ruth M. Agudelo C, Carmen L. Jaramillo C, Ruth M. Agudelo C, Judith Betancur U   +8 more
doaj  

Biological – chemical regeneration of desulphurization sorbents based on zinc ferrite [PDF]

Acta Montanistica Slovaca, 2002
One of the main sources of air pollution is the combustion of fuels by various thermal and power plants, transport facilities, and metallurgical plants.
Šepelák Vladimír, Vašková Helena, Boldižárová Eva, Kušnierová Mária   +3 more
doaj  

Biolixiviación de minerales sulfurosos

Revista Facultad de Ingeniería Universidad de Antioquia, 2002
Se hizo caracterización mineralógica y química de mineral sulfuroso de bajo tenor proveniente de una mina aurífera localizada en el municipio de Marma­to (Caldas), antes y después de un proceso de biolixiviación en el que se empleó un cultivo bacteriano
Jorge Hernando Agudelo-López, Judith Betancur-Urán, Wilson Martínez-Nieto, Carlos Mario Castañeda-Peña, Marinés Castaño-Galvis, Robert Fernando Largo-Mejía   +5 more
doaj   +1 more source

Knowledge on possibilities of applying mineral biotechnology to treatment of Slovak sulphide ores [PDF]

Acta Montanistica Slovaca, 1997
The summary of results from research aimed at possibilities to use biotechnological procedures for treatment of Slovak sulphide ores is presented in this study.
Štyriaková Iveta, Vašková Helena, Kušnierová Mária   +2 more
doaj  

Aislamiento y caracterización de cepas de Thiobacillus Ferroxidans con alta resistencia a arsénico y su utilización en la recuperación de oro a partir de concentrados de pirita y arsenopirita [PDF]

, 1997
Tesis (Doctorado en Ciencias con Especialidad en Biotecnología) UANLUANLhttp://www.uanl ...
Orrantia Borunda, Erasmo
core  

N.R. Ayupova [PDF]

Минералогия
Paleozoic siliceous-ferruginous oxide sedimentary rocks of the Urals massive sulfide deposits contain well-preserved textural and structural evidence indicating the role of microorganisms in their formation. Filamentous, rod-shaped, spherical and tubular
N.R. Ayupova
doaj   +1 more source

Lipopolysaccharides of iron-oxidizing Leptospirillum ferrooxidans and Thiobacillus ferrooxidans.

The Journal of General and Applied Microbiology, 1988
Lipopolysaccharides were isolated from one strain of Leptospirillum ferrooxidans and three strains of Thiobacillus ferrooxidans. All strains contained 2-keto-3-deoxyoctonate (KDO), heptose(s) and glucosamine besides neutral sugars, but were devoid of phosphorus.
AKIRA YOKOTA, YORIKO YAMADA, KO IMAI
openaire   +2 more sources