[Rate of iron (Fe 2+) bacterial oxidation at different temperatures and concentrations of Thiobacillus ferrooxidans...

The rate of iron oxidation by bacteria Thiobacillus ferrooxidans was measured at different temperatures (5 and 23 degrees C) and concentrations of bacterial cells (10(8)/ml and less). At a cell concentration of 10(7)--10(8)/ml the rate of bacterial oxidation remained at a relatively high level at a lowered temperature. At a low cell concentration (10(6)/ml and less) the rate of bacterial oxidation was reduced at a temperature of 5--6 degrees C.