tailieunhanh - Biodegradation of textile dye reactive black GDN by free cells isolated from soil and textile effluents

The present study deals with the degradation of Reactive black GDN by different bacterial cultures isolated from a contaminated site. Amongst 5 cultures, the isolate 4 displayed 96% decolourisation of Reactive black GDN (100 mgl-1 ) in 24h to 72 h. The colour removal efficiency of the isolate was further improved by optimizing various parameters. The decolourisation of the dye was times higher under static as compared to shaking condition. The pH and 37oC temperature were found to be optimum for the decolourisation of the dye. The isolate was able to decolorize the dye in the range of 50-500 mg l-1 . |