Sustainable Approach for the Bioremediation of Textile Azo Dye – Metanil Orange by Textile Effluent Adapted Bacterial Strain JHP-1

Environmental biotechnology is persistently expanding its efforts in the biological treatment of textile effluents, which is an eco-friendly and economically feasible alternate to physico-chemical decomposition processes. In the present study, effluent samples were collected from various textile and dyeing industries located in and around Kanchipuram, Tamil Nadu, India and were exploited for the screening and isolation of bacterial strains that were capable of decolorizing the textile dye, Metanil orange. Optimization of cultural conditions (Temperature, pH, Agitation speeds and Dye concentrations) were carried out to maximize the decolorization efficiency of JHP-1. Decolorization efficiency was found to be optimized at 35°C, neutral pH, after 24 h of incubation. Static conditions proved to be effective in maximizing decolorization. Increase in dye concentration decreased both decolorization efficiency of JHP-1. Glucose (carbon source) and yeast extract (nitrogen source) maximized the decolorization efficiency of JHP-1.