摘要
研究了盐亭钙基膨润土的理化性质及其对Cd2 + 的吸附作用。实验研究结果表明 ,该膨润土对重金属离子Cd2 + 有较好的吸附作用 ,吸附作用受溶液 pH值影响明显。膨润土对重金属离子的吸附主要通过离子交换作用进行 ,增加膨润土吸附剂添加量或加大溶液中Cd2 + 浓度 ,均有利于提高膨润土对Cd2 + 的吸附总量。膨润土对Cd2 + 的吸附模式符合Frendlish方程。
The paper has studied the physical-chemical properties of Ca-bentonite in Yanting and adsorption to Cd 2+ in solution.The study shows that bentonite has a good adsorption to Cd 2+ and adsorption is affected by pH of solution.Bentonite adsorb heavy mental by iron exchange.It is advantageous to adsorption of Cd 2+ that adsorbent or consistency of solution is increased.Adsorb model of bentonite to Cd 2+ is belong to Frendlish adsorption equation.
出处
《中国矿业》
北大核心
2004年第11期79-81,共3页
China Mining Magazine
基金
绵阳市自然科学资助项目 (编号 :2 0 0 3S0 13 )
