Decolorization of dye by fungal strains FBV25. FBV28, FNBLA1 immobilized on polypropylene material

Abstract

A mixture of fungal strains FBV25, FBV28 and FNBLal, isolated from decayed wood of Bavi national forest and from rotten rice straw of Ninh Binh province, was successfijly immobilized on polypropylene (PP) material. Decolorization of synthetic dyes including acid red 299 (NYl), acid red 266 (NY7), acid blue 62 (NY3), acid blue 281 (NY5), acid blue 113 (INI3), Reroazol Brilliant Blue R (RBBR) and blue reactive dye from wastewater of Nam Dinh textile factory was carried out. In 100 ml scale, synthetic dyes at concentration of 100 mg/L and blue reactive dye with 240 mg/L concentration from wastewater was decolorized 86 % after 144 hours and 80 % after 166 hours, respectively, by mixture of three fungal strains FBV25, FBV28 and FNBLal immobilized on pp material. For the 10 liter-scale, blue reactive dye at concentration of 142 mg/L from wastewater was removed 55 % and 70 % by mixture of three fungal strains and FBV25 strain immobilized on pp material, respectively, after 54 hours. FBV25 strain immobilized on pp material also removed 94 % blue reactive dye with 517 mg/L concentration from wastewater after 96 hours at 50 liter-scale. The obtained results providing basis in technological development for dye removal at the field scale.