Study of thermodynamics and dynamics of removing Cu(II) by biosorption membrane of Penicillium biomass.

摘要: Based on the integration of biosorption and membrane-separation, a novel membrane with good mechanical property was prepared by immobilizing Penicillium biomass cross-linked chitosan fabric. The ability low cost to remove Cu(II) ions from solution studied through batch continuous experiments. Langmuir adsorption isotherm models were found accurately fit experimental data (R2 > 0.99) indicating that sorption monolayer-mode. uptake could reach 38 mg/g at its initial concentration 200 mg/L in solution. Continuous investigated column effects height, flow rate studied. Bed Depth Service Time model (BDST) applied simulate data. breakthrough time different rates concentrations predicted (error < 8%). 38.3 mg/g height 30 cm, 5 mL/min, 200 mg/L. regenerated washing 0.05 mol/L HCl, curves remained fairly unchanged after 10 cycles adsorption–desorption.