Some Aerobic Bacterial Degradation and Decolorization of Different Azo Dyes

Abstract

In this present study an attempt was made to examine the potential of different bacterial strains for biodecolorization of Azo dye under aerobic condition. The bacterial strains used in the study were Escherichia coli, Pseudomonas aerogenosia, Bacillus sp. and Klebsiella sp. the selected bacterium shows higher decolorization E. coli as compared to another bacteria. The maximum removal was observed at 0.1 mg/L of direct orange, dispearse Brown and reactive green with Pseudomonas aerogenosa (94, 88, 72%) after 7 days incubation. The minimum removal was observed at 0.5 mg/L of D.O, D.B and R.G. with Klebsiella sp. (80, 45, 29) % after (6, 7, 1) days from incubation.

Keywords : Aerobic , bacteria, degradation , degradation , azo dyes