Desorption and Mechanism of Dye Adsorbed Growing Mycelia of Aspergillus fumigatus
Characteristics and mechanism on desorbing of the dye adsorbed growing mycelia of Aspergillus fumigatus were studied. Results showed that the desorptive rate of direct or reactive dye adsorbed growing mycelia was relatively high. pH value of desorbent had remarkable effect on desorptive rate, and the desorption rate was restrained on acidic circumstance while improved on the base circumstance. Desorption rate reduced appropriately when initial temperature rose. Dye adsorbed growing mycelia could be easily desorbed in existence of a few desorbent. The desorption of reactive brilliant blue adsorbed growing mycelia by methanol was in accordance with the first exponential decay model, with reactive rate comparatively rapid on the initial phase and slow on the middle or behind because of obstacle of compact mycelium. After the dye absorbed growing mycelia was desorbed, the mycelia still could be used for three times.