Purification of Contaminated Water with Chromium (VI) Using Pseudomonas aeruginosa

摘要

A bacterial strain Pseudomonas aeruginosa isolated from an uncontaminated soil has been used for the removal of hexavalent chromium (Cr(VI)). The experiments were carried out in batch system in a culture broth. The results obtained have shown that 100 % of Cr(VI) are removed. Contact time, initial concentration of Cr(VI), temperature, as well as the nature of the culture broth have influenced this elimination. To the initial concentration of 20 g/L of Cr(VI) the elimination rates are lower while the reverse occurs for an initial concentration of 8 g/L.This study allows considering the use of Pseudomonas aeruginosa in the treatment of water polluted by toxic heavy metals such as Cr(VI).