非饱和黏土中镉离子迁移规律的数值分析  

Numerical Analysis of Cadmium Ion Migration in Unsaturated Clay

作　　者：张卫红 郑明新[2] 李旭[2] 

机构地区：[1]中国中铁航空港建设集团有限公司,北京100093 [2]华东交通大学,南昌330013

出　　处：《工程建设与设计》2013年第1期140-143,共4页Construction & Design for Engineering

基　　金：江西省自然科学基金(2007GZC0854)

摘　　要：考虑南昌-莲塘一带镉离子呈高背景或异常,而其迁移转化又是一个十分复杂的物理化学过程。论文在对南昌土质、镉离子分布调研的基础上,采用有限元法对镉离子在非饱和土中的迁移过程进行数值模拟,并与室内土柱试验成果进行对比,探讨了镉离子在非饱和土中迁移的规律,对于污染治理具有一定的参考价值。Considering the Nanchang - Liantang area of cadmium ion with high background or abnormal, and the transformation is a very complcx physical and chemical process. In this paper, Nanchang soil cadmium ion distribution on the basis of research, using the finite clement method of cadmium ions in unsaturated soil migration process was numerically simulated, and compared the results of indoor soil column experiment, discussed thc cadmium ion transport in an unsaturated soil and rule, for pollution control has a certain reference value.

关 键 词：非饱和土 镉离子 迁移规律 数值分析 

分 类 号：X131.3[环境科学与工程—环境科学]