Microbial Decolorisation of Chromium-azomethine Dye Under Aerobic Conditions

Removal of an chromium-containing azomethine dye from waste water using an aerobically grown mixed bacterial culture was studied. Viable cell counts in the dye-amended medium were determined by serial dilution and expressed as a number of colony forming units (CFU) per unit volume. The extent of decolorisation was found to depend on initial dye concentration, and ranged between 27 and 50 %