摘要
研究了有机改性膨润土对锌离子的吸附性能。结果表明:有机改性膨润土对水中锌离子的吸附在60 min达到平衡;在50 mL1、0 mg/L的锌离子溶液中,当其用量为1.0 g时,有机改性膨润土对水中锌离子的吸附去除率达到92.8%;温度对水溶液中锌离子的去除有一定的影响,有机改性膨润土吸附水中锌离子的过程为放热反应。平衡吸附量与平衡质量浓度之间的关系符合Freundlich和Langmuir等温吸附方程所描述的规律。
The adsorption performance of orgmtic modified bentonite on Zn2 ＋ from aqueous solution was studied. The results show that the adsorption of organic modified bentonite on Zn2 ＋ reaches equilibrimn in 60 min. The removal efficiency of Zn2 ＋ achieves 92. 8 % when 1. 0 g organic modified bentonite is added into 50 mL of 10mg/L Zn2＋ aqueous solution. Temperature exerts an effect on the adsorption of the Zn2＋ and the adsorption process is proved to be exothermic. The relationship, between adsorbing capacity and equilibrium mass concentration, is in accordance with Freundlich and Langmuir isothermal adsorption equations.
出处
《环境保护科学》
CAS
2010年第2期31-33,共3页
Environmental Protection Science
关键词
有机改性膨润土
吸附
锌离子
吸附等温线
Organic Modified Bentonite Adsorption Zn2＋ Adsorption Isotherm
