摘要
研究了有机改性膨润土对Cr(Ⅵ)的吸附性能。结果表明:有机改性膨润土对水中Cr(Ⅵ)的吸附在60 m in达到平衡;在50 mL、10 mg/L的Cr(Ⅵ)溶液中,当其用量为1.0 g时,有机改性膨润土对水中Cr(Ⅵ)的吸附去除率达到91.5%;温度对水溶液中Cr(Ⅵ)的去除有一定的影响,有机改性膨润土吸附水中Cr(Ⅵ)的过程为放热反应。平衡吸附量与平衡质量浓度之间的关系符合Freund lich和Langmu ir等温吸附方程所描述的规律。
The adsorption performance of Cr （Ⅵ） from aqueous solution by Organic modified bentonite was studied. The results show that the adsorption of Cr （Ⅵ） on Organic modified bentonite reaches equilibrium in 60 min. theremoval efficiency of Cr （Ⅵ） achieves 91. 5% when 1. 0 g of furfural residue is added into 50 mL of 10mg/L Cr （Ⅵ） aqueous solution. Temperature exerts an effect on the adsorption of the Cr （Ⅵ） and the adsorption process is p roved to be exothermic. The relationship, between adsorbing capacity （ qe ） andequilibrium mass concentration （pe） , is in accordance with Freundlich and Langmuir isothermal adsorption equations.
出处
《有色矿冶》
2010年第1期54-56,共3页
Non-Ferrous Mining and Metallurgy
