these include R. oryzae, A. variabilis, and B. cirulans GC subgroup B. These studies have shown that biological methods have great potential as methods for the treatment of waters and wastewaters containing sulfer dyes. However.none of them are able to treat the waters and wastewaters containing sulfer dyes completely. Therefore. it is necessary to improve upon these biological methods. A consortium GB is an example of an innovative approach by the combination of two microorganisms. With further optimization, for example, the combination of A. terreus SA3 and B. cirulans GC subgroup B with immobilization in a bioreactor may be of use.