Abstract:

Abstract：Using white-rot fungi to treat dye wastewater can reach a good decolorization purpose by means of their specific degradation enzymes. In this paper, concentration of 300mg/L Naphthol Green-B dyes was used to be treated by white rot fungi. At first, the strain of pc5305 was to be screened for the best decolorization white rot fungus which used to treat Naphthol Green-B from the four different strains. Secondly, we optimized the decolorization conditions of Naphthol Green-B with pc5305. The results showed that the optimal process for pc5305 to decolorize Naphthol Green-B dyes were those of initial pH 4.4,oscillating,using after four days static culture and the inoculation quantity greater than 2.0×107spores/L pc5305 to be inoculated. In this optimal decolorization conditions, the decolorization rate of pc5305 to 300mg/L Naphthol Green-B dyes can reach above 90% within 8h.