Results 41 to 50 of about 8,912 (205)

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

Nova 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, Kiskova Jana, Timkova Ivana, Malinicova Lenka, Luptakova Alena, Kusnierova Maria, Sedlakova-Kadukova Jana   +6 more
doaj   +1 more source

Interaction of Acidithiobacillus ferrooxidans, Rhizobium phaseoli and Rhodotorula sp. in bioleaching process based on Lotka–Volterra model

Electronic Journal of Biotechnology, 2016
Background: Nowadays, leaching-ore bacteria, especially Acidithiobacillus ferrooxidans is widely used to retrieve heavy metals, many researches reflected that extra adding microorganism could promote bioleaching efficiency by different mechanisms, but ...
Xuecheng Zheng, Dongwei Li
doaj   +1 more source

Mechanism of Growth Inhibition by Tungsten in Acidithiobacillus ferrooxidans

Bioscience, Biotechnology, and Biochemistry, 2001
Cell growth of three hundred iron-oxidizing bacteria isolated from natural environments was inhibited strongly by 0.05 mM, and completely by 0.2 mM of sodium tungstate (Na2WO4), respectively. Since no great difference in the level of tungsten inhibition was observed among the 300 strains tested, the mechanism of inhibition by Na2WO4 was studied with ...
SUGIO, Tsuyoshi, KUWANO, Hiroyuki, NEGISHI, Atsunori, MAEDA, Terunobu, TAKEUCHI, Fumiaki, KAMIMURA, Kazuo   +5 more
openaire   +2 more sources

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

مجله 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, R Roostaazad, M. A Firouzzare, A Rashidi   +3 more
doaj  

Optimization of Biodesulfurization of sour heavy crude oil.

PLoS 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, Seyed Ahmad Ataei   +1 more
doaj   +1 more source

Bioleaching of anilite by Acidithiobacillus ferrooxidans

Transactions of Nonferrous Metals Society of China, 2008
Abstract In order to characterize the efficiency of copper bioleaching from anilite using pure cultures of Acidithiobacillus ferrooxidans in the absence and presence of ferrous sulphate, the experiments were carried out in shake flasks with or without 4 g/L ferrous sulphate (FeSO 4 ·7H 2 O) at pH 2.0, 150 r/min and 35°C.
Hai-na CHENG, Yue-hua HU, Jian GAO, Heng MA   +3 more
openaire   +1 more source

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

International 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, Hongbo Zhao, Wenqing Qin, Congren Yang, Guanzhou Qiu   +4 more
doaj   +1 more source

Microbial leaching of marmatite by Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans

Transactions of Nonferrous Metals Society of China, 2006
The bioleaching of marmatite in shaken flasks was studied. After leaching for 29 days, the leaching ratio of zinc was 91%. Three kinds of bacteria, mixture-based bacteria, 9K-based bacteria and sulfur-based bacteria were used in marmatite leaching, of which the mixture-based bacteria have the best leaching result while the sulfur-based bacteria have ...
Jun WANG, Guan-zhou QIU, Wen-qing QIN, Yan-sheng ZHANG   +3 more
openaire   +1 more source

Building efficient biocathodes with Acidithiobacillus ferrooxidans for the high current generation

Journal of Power Sources, 2021
The development of biocathodes is highly fascinating in microbial electrochemical technologies research. In this study, iron-oxidizing bacterium Acidithiobacillus ferrooxidans-based biocathodes were developed under the constant polarization of the ...
G. Sathiyanarayanan, Nicolas Chabert, J. Tulumello, W. Achouak   +3 more
semanticscholar   +1 more source

Bioleaching and Kinetic Investigation of WPCBs by A. Ferrooxidans, A. Thiooxidans and their Mixtures [PDF]

Journal of Chemical and Petroleum Engineering, 2018
Bioleaching was used to mobilize Cu, Zn and Ni from waste printed circuit boards (WPCBs) and eliminate hazardous metal species from these wastes. Pulp density (PD) and medium culture are two effective factors which have been optimized in this paper.
Melika Mostafavi, S. M. J. Mirazimi, Fereshteh Rashchi, F. Faraji, Navid Mostoufi   +4 more
doaj   +3 more sources