Kinetic and Equilibrium Studies on In-Situ Biosorption of Reactive Blue 140 Dye by Live Biomass Preparation of Aspergillus niger HM11
نویسندگان
چکیده
This study reports the capacities and mechanisms of live biomass of an ascomycetes strain, Aspergillus niger HM11 biomass preparations in removing a textile dye Reactive blue 140 from aqueous solution was investigated with different parameters, such as adsorbent dosage, pH, initial dye concentrations and equilibrium time. pH study and desorption profile proved that adsorption process was supported by chemisorption phenomenon. The Langmuir and Freundlich adsorption models were used for the mathematical description of the biosorption equilibrium and both fitted well the equilibrium data. The dye biosorption on to fungal biomass preparations followed second-order kinetic model and equation. The strain provided a constant decolorization yield about 76.4% during 4 cycle. th
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