BACTERIAL DECOLORIZATION OF TEXTILE DYE- ORANGE 3R

Abstract

The dye decolorizing isolates, Bacillus sp., Klebsiella sp. Salmonella sp. and Pseudomonas sp. were isolated from the textile effluent samples collected from Elampillai, Tamil Nadu. Different parameters such as various carbon source, nitrogen source, temperature, pH and inoculum size were optimized for decolorization of Orange 3R by using bacterial isolates. Pseudomonas sp. and Bacillus sp. showed maximum dye decolorization of 89% at the end of 144h under optimum condition. But the Bacillus sp. was found to be more efficient in dye decolorization. All parameters studied in this paper were found to be effective for all isolates. The results reported here warrant further investigation to establish the usefulness of these isolates for bioremediation and biodegradation application such as waste water treatment. High decolorization extent and facile conditions show the potential for this bacterial strain to be used in the biological treatment of dyeing mill effluents.