摘要
以甘肃天祝褐煤作吸附剂,对常温下镉离子溶液进行了吸附实验研究,探讨了吸附动力学、吸附平衡、吸附机理和影响吸附效果的因素。结果表明,褐煤对镉离子的吸附速率符合一级反应动力学,吸附平衡遵守Freundlich公式,介质酸度对吸附效果有显著的影响,pH为4～7时吸附率可达95%以上。
A test for the adsorption of cadmium-ion solution with Tianzhu lignite at normal temperature was carried out. The adsorption kinetics, the adsorption equilibrium, the effect elements and the mechanism of adsorption were studied. The results indicate that the adsorption rate of cadmium-ion on lignite is first-order kinetic, the adsorption models exhibits Freundlich behavior, PH is the main factor affecting the adsorption and the disposal rate could be 97% when pH was about 4-7.
出处
《洁净煤技术》
CAS
北大核心
2006年第4期59-61,共3页
Clean Coal Technology
关键词
褐煤
吸附
镉离子
lignitel
adsorption
cadmium-ion
