蛭石对重金属离子吸附作用的研究  

Study on the Adsorption of Heavy Metals Ion onto Vermiculite

作　　者：谭光群[1] 李晖[1] 彭同江[2] 

机构地区：[1]四川大学化学工程学院,四川成都610065 [2]西南工学院矿物材料及应用研究所,四川绵阳621002

出　　处：《四川大学学报（工程科学版）》2001年第3期58-61,共4页Journal of Sichuan University (Engineering Science Edition)

摘　　要：以蛭石为吸附剂 ,研究了蛭石对Cu2 +、Pb2 +、Cd2 +的吸附作用。实验结果表明蛭石具有较强的吸附性能 ,吸附速度快 ,pH值是影响吸附的主要因素 ;探讨了蛭石的吸附作用机理 ,得出蛭石对Cu2 +、Cd2 +、Pb2 +的吸附符合Langmuir和Freundlich吸附等温式 ,离子交换是主要的吸附形式。通过蛭石对实际废水的处理结果表明蛭石可以用于实际废水的处理。The adsorption of heavy metal ions such as Cu 2+ 、Pb 2+ 、Cd 2+ on vermiculite was studied. Results show that vermiculite has a stronge adsorption capacity .The process of adsorption is quick and pH value is the important factor in the adsorption. The mechanism of the adsorption of heavy metal ions onto vermiculite can be discribed by Langmuir and Freundlich equations. Ion exchange is the main kind of adsorption. Vermiculite was also applied to treat the electroplating wastewater and the result shows that vermiculite can be used to industry wastewater treatment.

关 键 词：蛭石 吸附作用 重金属离子 废水处理 

分 类 号：X703.5[环境科学与工程—环境工程]