This study was investigated the non-immobilized individual and consortium bacterial strains and immobilized individual and consortium bacterial strains for the reduction of azo dyes containing textile effluent. About 4 predominant bacterial strains such as Pseudomonas sp., Staphylococcus sp.,, Micrococcus sp., and Bacillus sp., with potential dye degradation ability were isolated from dye industries in tirupur. It was used to develop consortium for bioremediation efficiency analysis on textile effluent. On analyzing with the individual and consortium immobilized and non-immobilized bacterial strains of the treatment trials, the consortium nonimmobilized bacterial strains are found to be the very effective bioremediation ability. This study reveals the optimization of pH, retention time, organic load, incubation time and Inoculums concentration for the effective decolorization of the azo dye containing textile effluent. The GCMS analyses of the treated (non-immobilized bacterial consortium) samples were not found to have any toxic compounds.
