粘性土对金属离子吸附性能的试验研究  

An Experimental Study of Clay Adsorption Capacity of Metallic Ion

作　　者：张静[1] 曹丽文[1] 练翠侠[1] 倪勇[1] 洪雷[1] 

机构地区：[1]中国矿业大学资源学院,江苏徐州221008

出　　处：《资源环境与工程》2007年第4期483-485,共3页Resources Environment & Engineering

基　　金：国家自然科学基金项目(40372069);教育部新世纪优秀人才支持计划项目(NCET-05-0479);中国矿业大学科技基金项目(OF4506)

摘　　要：采用含K+、Cu2+和Mg2+的溶液,对徐州市某粘土进行吸附试验,研究金属离子对粘土的塑液限的影响。结果表明,在一定浓度范围内,粘土对金属离子的吸附量随着离子浓度的增加而升高,高价金属离子的竞争吸附能力要高于低价离子。粘土的塑限、液限随所吸附金属离子的数量、种类发生变化。The adsorption test on the clay in Xuzhou, using the solution of K^＋ , Cu^2＋ and Mg^2＋ , and the liquid-plastic limit was studied in the adsorption experiment. The results showed that the adsorption capacity of clay increased with the rising of solution＇ s concentration in a specified concentration. The higher valences of icons have greater adsorption capacity than the lower valences. The paper confirmed that the liquid-plastic limit of clay was changed with different a- mount, category of metallic icon.

关 键 词：粘土 金属离子 吸附能力 塑性指数 

分 类 号：TU411[建筑科学—岩土工程]