[Kinetics and equilibrium of Ni2+ biosorption by waste biomass of Saccharomyces cerevisia].

The biosorption characteristics of Ni2+ by the waste biomass of Saccharomyces cerevisia were investigated, including the biosorption kinetics as well as equilibrium isotherm study. The experimental results showed that when the initial Ni2+ concentration was 65.6 mg/L, the process of Ni2+ biosorption onto the biomass of Saccharomyces cerevisia could be divided into two stages, the first stage was physical sorption and reached equilibrium very quickly (within 10 minutes).

[Effect of pH on the biosorption behavior of 4-CP onto anaerobic granular sludge].

The effect of the initial pH value on the biosorption behavior of 4-CP onto anaerobic granular sludge was investigated in this paper. The experimental results indicated that the initial pH value was the important parameter affecting the biosorption of 4-CP, and the biosorption capacity of anaerobic granular sludge decreased with the increase of pH value. The biosorption capacity of 4-CP was 6.