太湖蓝藻对Sb(V)的生物吸附作用

摘要

In this study, the biosorption characteristics of Sb(V) by the cyanobacteria from Taihu Lake were investigated. The results indicated that the biosorption efficiency of Sb(V) by the biomass was enhanced greatly under the treatment of 0. 1 mol/L HCl. The biosorption capacity of Sb(V) on the original and the HCl-treated biomass achieved equilibrium within 1 h. The biosorption of Sb(V) by the original and the HCl-treated biomass decreased with increasing pH. The biosorption processes of Sb(V) on the original and the HCl- treated biomass obeyed the Freundlich isotherm model. The occurrence of Cl-, NO3- , SO42- and PO43- significantly inhibited the biosorption of Sb(V) by HCl-treated biomass.%利用富营养化湖泊的藻类——太湖蓝藻,对Sb(V)的生物吸附特征进行了研究.结果表明:藻类经0.1 mol/L盐酸处理后,对Sb(V)的生物吸附效率大大提高.原藻和经盐酸处理的蓝藻在1 h左右对Sb(V)的吸附量达到平衡；Sb(V)在原藻和经盐酸处理的蓝藻表面的吸附能力均随着pH升高逐渐减弱；原藻与经盐酸处理的蓝藻对Sb(V)的吸附等温线符合Freundlich方程；不同离子强度的CI-、NO3-、SO42-、PO43-对Sb(V)在原藻表面的吸附影响较弱而对Sb(V)在经盐酸处理的蓝藻表面的吸附影响显著.