Metabolic activity of autochthonous and museum strains of Thiobacillus ferrooxidans

Metabolic activities of the museum and autochthonous strains of T. ferrooxidans bacteria, growing at temperatures 5, 10, 30 and 40°C in a liquid culture medium adjusted to pH 1.55, 1.8 or 2.3, were compared. The analysis of the dynamics of ferrous ion oxidation as well as bioextraction rate of titanium contained in wastes resulting from mining and burning lignite was carried out. The autochthonous bacteria proved to be less susceptible to temperature changes and medium acidity than the museum bacteria.