Isolation of indigenous bacteria and consortia development for decolorization of textile dyes

Twenty one bacterial isolates were obtained from textile affected soil, sludge and textile effluent. All the isolates were screened at 50, 100, 150 and 200ppm of red, green, yellow and black textile dyes. The Isolates 1, 3, 5, 7, 9, and 20 were screened on the basis of ability to degrade the dyes efficiently more than 60%, within 24h at 50, 100, 150 and 200ppm of red, green, yellow and black dyes. Four consortia were developed using combinations of these bacterial isolates. Among them consortium BMP1/SDSC-01 had maximum decolorization ability. It was 84% for green and red textile dyes while 85% for black and yellow. This study will help to establish low cost treatment of textile effluents in Pakistan by applying bioremediation.