The oil shale used in bioleaching
experiments was taken from Meihekou City in Jilin Province, China.
Factors influencing bioleaching
copper from waste printed circuit boards by Acidithiobacillus ferrooxidans.
From these correlation studies, it appears that the pattern of bioleaching
involves the microbial oxidation of pyrite leading to the production of sulphur and sulphate, which decreased the pH and increased other parameters including turbidity, slime production, colour intensity, optical density, iron, conductivity and TDS.
Removal of Cr from tannery sludge by bioleaching
Role of galvanic interaction in the bioleaching
of Duluth-Gabbro Cu-Ni sulfides.
Remediation removed 83 percent Cu, 86 percent Cr, and 95 percent As, presumably as a result of the high surface area accessible for acid extraction and bioleaching
Cheng, "SEM and AFM Images of Pyrite Surfaces after Bioleaching
by Indigenous Thiobacillus thiooxidans," Appl.
In one embodiment, the metal may be separated from crushed support material or ore in a bioleaching
lagoon by the action of hydrocarbon-utilizing bacteria under anaerobic conditions.
Rate of pyrite bioleaching
by Thiobacillus ferrooxidans: Results of an interlaboratory comparison.
Sand W, Tilman G, Jozsa PG, Schippers A (2001) Biochemistry of bacterial leaching--direct vs indirect bioleaching
Placer Dome proposes to use traditional technology combined with bioleaching
to extend the life of the mine another 30 years.
The industry is currently using bioleaching
technology and automated remote technology for mining, which are anticipated to lead the industry toward sustained growth.