Biosorption of Humic Acid by Aspergillus fumigatus Mycelial Pellets Cultured under Different Conditions

The fungal mycelial pellets of Aspergillus fumigatus was used for the removal of humic acid from aqueous solution. The impact of culture age, mycelial pellets preservation time, and different nutrition-cultured mycelial pellets on the biosorption of humic acid was studied. The results showed that humic acid could be adsorbed by Aspergillus fumigatus mycelial pellets. Sucrose could be a good cultivate carbon source. The biosorption capacity reached 8.96 mg/g by the mycelial pellets cultivated for 10d. The biomass was not suitable for preservation for too long period at 0~4°C. Five g/L of glucose concentration in culture was sufficient for the biosorption.