Results 181 to 190 of about 2,517 (213)

Comparative study of inorganic arsenic resistance of several strains of Acidithiobacillus thiooxidans and Acidithiobacillus ferrooxidans

Hydrometallurgy, 2009
The growth characteristics of several strains of Acidithiobacillus thiooxidans and Acidithiobacillus ferrooxidans were studied in the presence of soluble inorganic arsenic(III) and (V) with regard to media pH changes, total bacterial populations and sulfur oxidation rates.
Feifan Leng, Kaiyan Li, Xiaoxue Zhang, Yongquan Li, Yan Zhu, Jianfei Lu, Hongyu Li   +6 more
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A simple medium modification for isolation, growth and enumeration of Acidithiobacillus thiooxidans (syn. Thiobacillus thiooxidans) from water samples

Journal of Microbiological Methods, 2013
High concentrations of H(2)S in groundwater are commonly removed using Biological Trickling Filter (BTF) that contains high numbers of biofilm immobilized sulfur oxidizing bacteria (mainly Thiobacillus thiooxidans). BTF performance requires continuous monitoring of these bacteria at several sampling points.
Janeta, Starosvetsky, Udy, Zukerman, Robert H, Armon   +2 more
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Fractionation behavior of heavy metals in soil during bioleaching with Acidithiobacillus thiooxidans

Journal of Hazardous Materials, 2009
The effects of bioleaching on the fractionation of soil heavy metals were investigated in this study. Bioleaching of heavy metals from contaminated soil was carried out in shake flask experiments. Acidophilic sulfur oxidizing bacteria Acidithiobacillus thiooxidans isolated from soil was used for bioleaching.
R, Naresh Kumar, R, Nagendran
openaire   +2 more sources

The inhibitory effect of antimicrobial zeolite on the biofilm of Acidithiobacillus thiooxidans

Biodegradation, 2009
The inhibitory effect of antimicrobial zeolite coated concrete specimens (Z2) against Acidithiobacillus thiooxidans was studied by measuring biomass dry cell weight (DCW), biological sulphate generation, and oxygen uptake rates (OURs). Uncoated (UC), and blank zeolite coated without antimicrobial agent (ZC) concrete specimens were used as controls. The
Tesfaalem, Haile, George, Nakhla
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Changes in biofilm structure during the colonization of chalcopyrite by Acidithiobacillus thiooxidans

Applied Microbiology and Biotechnology, 2012
Biofilms of Acidithiobacillus thiooxidans were grown on the surface of massive chalcopyrite electrodes (MCE) where different secondary sulfur phases were previously formed by potentiostatic oxidation of MCE at 0.780≤Ean≤0.965 V (electrooxidized MCE, eMCE). The formation of mainly S⁰ and minor amounts of CuS and Sn²⁻ were detected on eMCEs.
J V, García-Meza, J J, Fernández, R H, Lara, I, González   +3 more
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Growth Inhibition by Tungsten in the Sulfur-Oxidizing BacteriumAcidithiobacillus thiooxidans

Bioscience, Biotechnology, and Biochemistry, 2005
Growth of five strains of sulfur-oxidizing bacteria Acidithiobacillus thiooxidans, including strain NB1-3, was inhibited completely by 50 microM of sodium tungstate (Na(2)WO(4)). When the cells of NB1-3 were incubated in 0.1 M beta-alanine-SO(4)(2-) buffer (pH 3.0) with 100 microM Na(2)WO(4) for 1 h, the amount of tungsten bound to the cells was 33 ...
Atsunori, Negishi, Tadashi, Muraoka, Terunobu, Maeda, Fumiaki, Takeuchi, Tadayoshi, Kanao, Kazuo, Kamimura, Tsuyoshi, Sugio   +6 more
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Bioleaching of heavy metals from sewage sludge using Acidithiobacillus thiooxidans

AIP Conference Proceedings, 2010
Acidithiobacillus thiooxidans was isolated from sewage sludge using the incubation in the Waksman liquor medium and the inoculation in Waksman solid plate. It was found that the optimum conditions of the bioleaching included solid concentration 2%, sulfur concentration 5 g⋅L−1 and cell concentration 10%.
Ye-Ming Wen, Hong-Yan Lin, Qing-Ping Wang, Zu-Liang Chen, Fangming Jin, Qi Zhou, Bing Wu   +6 more
openaire   +1 more source

Evolution of biofilms during the colonization process of pyrite by Acidithiobacillus thiooxidans

Applied Microbiology and Biotechnology, 2011
We have applied epifluorescence principles, atomic force microscopy, and Raman studies to the analysis of the colonization process of pyrite (FeS(2)) by sulfuroxidizing bacteria Acidithiobacillus thiooxidans after 1, 15, 24, and 72 h. For the stages examined, we present results comprising the evolution of biofilms, speciation of S (n) (2-) /S(0 ...
Dulce M, González, René H, Lara, Keila N, Alvarado, Donato, Valdez-Pérez, Hugo R, Navarro-Contreras, Roel, Cruz, Jessica Viridiana, García-Meza   +6 more
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Bioleaching of sphalerite by Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans cultured in 9K medium modified with pyrrhotite

Journal of Central South University of Technology, 2008
Elective culture of Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans in 9K medium modified with pyrrhotite was studied. Bioleaching of flotation concentrate of sphalerite by the selected bacteria was carried out. The results show that the microorganisms cultured by pyrrhotite are a mixture of Acidithiobacillus ferrooxidans and ...
Song Chen, Guan-zhou Qiu, Wen-qing Qin, Zhuo-yue Lan   +3 more
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Simultaneous removal of H2S and NH3 in biofilter inoculated with Acidithiobacillus thiooxidans TAS

Journal of Bioscience and Bioengineering, 2005
H2S and NH3 gases are toxic, corrosive and malodorous air pollutants. Although there are numerous well-established physicochemical techniques presently available for the treatment of these gases, the growing demand for a more economical and improved process has prompted investigations into biological alternatives.
Eun Young, Lee, Kyung-Suk, Cho, Hee Wook, Ryu   +2 more
openaire   +2 more sources