The effect of initial Cd concentration on biosorption capacity is shown in Fig. 4. It is observed that with the Cd concentration increasing from 20 to100 mg/L, the adsorption amount rapid enhances from 9.45 mg/g to 36.46 mg/g and 9.85 mg/ g to 41.99 mg/ g for living and no-living biomass. When the Cd concentration exceeded 100 mg/L, the adsorption amount increased slightly. Meanwhile, the biosorption rate exhibited drop tendency.