Results 161 to 170 of about 1,142 (184)

Treatment for woolscouring effluent through bioacidification by acidithiobacillus thiooxidans

International Journal of Environment and Pollution, 2010
In this study, a promising process called bioacidification was used to remove organic pollutant from Woolscouring Effluent (WSE) by emulsion destabilisation. Chemostat experiments of bioacidification treatment inoculated with Acidithiobacillus thiooxidans were operated at high wastewater recycle ratios to achieve shorter Hydraulic Retention Time (HRT).
Feng He, Lixiang Zhou
openaire   +1 more source

Adhesion to metal sulfide surfaces by cells of Acidithiobacillus ferrooxidans, Acidithiobacillus thiooxidans and Leptospirillum ferrooxidans

Hydrometallurgy, 2006
Abstract Attachment of four strains of Acidithiobacillus ferrooxidans to pyrite, chalcopyrite, galena, sphalerite or quartz was found to be mineral-selective. The bacterial extracellular polymeric substances (EPS) are responsible for mediating this process. Attachment of cells of A.
Harneit, Kerstin, Goeksel, A., Kock, D., Klock, J.h, Gehrke, Tilman, Sand, Wolfgang   +5 more
openaire   +1 more source

Monitoring Acidithiobacillus Thiooxidans Biofilm Formation on Graphite Surface

ECS Meeting Abstracts, 2018
Biofilm formation has been studied to understand modifications in electrode interface to create new monitoring devices related with different fields as medical, environmental and industrial. In biomining industry, specifically in bioleaching processes, Acidithiobacillus thiooxidans is an acidophilic bacterium that enhances ...
Marcela Méndez-Tovar, J Viridiana García-Meza, I González   +2 more
openaire   +1 more source

Biofiltration of H2S-rich biogas using Acidithiobacillus thiooxidans

Clean Technologies and Environmental Policy, 2015
Biogas has limited use in energy generation mainly due to the presence of hydrogen sulfide (H2S). Currently, most of the techniques employed in the removal of H2S from biogas have a chemical base, with high material costs and generating secondary pollutants.
Bruno Carlesso Aita, Flávio Dias Mayer, Diana Tomazi Muratt, Michel Brondani, Stefen Barbosa Pujol, Laura Bedin Denardi, Ronaldo Hoffmann, Djalma Dias da Silveira   +7 more
openaire   +1 more source

Heavy metals recovery from spent catalyst using Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans

2010 International Conference on Chemistry and Chemical Engineering, 2010
In this investigation, a spent processing catalyst from one of the oil refineries in Iran was initially characterized physically and chemically. Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans were used to mobilize aluminum, cobalt, molybdenum and nickel from hazardous spent catalysts.
R. Mafi Gholami, S. M. Borghei, S. M. Mousavi   +2 more
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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

Bioleaching of metals from steel slag by Acidithiobacillus thiooxidans culture supernatant

Chemosphere, 2014
The generation of 300–500 kg of slag per ton of the steel produced is a formidable amount of solid waste available for treatment. They usually contain considerable quantities of valuable metals. In this sense, they may become either important secondary resource if processed in eco-friendly manner for secured supply of contained metals or potential ...
Hong, Hocheng, Cheer, Su, Umesh U, Jadhav   +2 more
openaire   +2 more sources

Surface properties of pyrite in the course of bioleaching by pure culture of Acidithiobacillus ferrooxidans and a mixed culture of Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans

Hydrometallurgy, 2011
Abstract Both Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans attached to pyrite rapidly, reaching the adsorption equilibrium in 20 – 25 min. Furthermore, the adsorption content of substrate-grown bacteria was larger than that of solution-grown ones.
Hui Liu, Guohua Gu, Yangbao Xu
openaire   +1 more source