الفهرس | Only 14 pages are availabe for public view |
Abstract The colored dye effluents are considered to be highly toxic to the aquatic biota and reducing photosynthetic activity, which disturbs the natural equilibrium. The direct disposal of textile industry wastes was repeatedly described as a threat to the environment. Since recent technologies designed for waste management and environment cleanup program are based on the bioremediation of different pollutants by soil and water microflora. Thus the present work discussed the role of fungi in bioremediation and removal of textile dyes from wastes of textile industries. The results could be summarized as follows: Six fungal species were isolated from a mixture of 4 weeks incubated soil samples and wood chives. These fungi were identified as Aspergillus flavus, Aspergillus niger, Penicillium canescens, Penicillium crustosum, Penicillium sp., and Fusarium sp.. It was obvious that Aspergillus flavus and Penicillium canescens possessed the highest decolorization activity. Hence these isolates were chosen for further investigation. - Optimization studies revealed that Czapek’s Dox medium, 0.01% Direct Blue dye concentration, incubation temperature 30 °C and 35 °C for 7 days and pH4 and 5 were the best conditions for dye decolourization by Aspergillus flavus and Penicillium canescens, respectively. |