Biodegradation of Crude Oil Using Three Types of Bacteria Pseudomonas Fluoroscens, Bacillus Licheniformis and Sphingomonas Paucimobilis.

Abstract

  The biodegradation process is one of the best ways to remove organic pollutants with different organic concentrations that have a very dangerous impact on the ecosystem. Soil samples contaminated with crude oil were collected from eight oil producing sites of Basrah Governorate. In the present study three types of bacterial species were isolated from the soil contaminated with crude oil in the producing fileds. The bacterial species were diagnosis of Vitek device as Pseudomonas fluoroscens, Bacillus licheniformis and Sphingomonas paucimobilis, their ability to biodegrade crude oil was tested of the mineral salts medium. As single isolated for 10,20 and 30 days incubation. results showed that the P.fluoroscens the best with biodegradation ability at different incubation periods .