水利水电科技进展Issue(1)：1-10,10.DOI:10.3880/j.issn.1006-7647.2016.01.001
污染物击穿防污屏障与地下水土污染防控研究进展
Review on penetration of barriers by contaminants and technologies for groundwater and soil contamination control
摘要
Abstract
Barrier systems are the most important structures for landfills in terms of groundwater pollution control. Analytical solutions to one-dimensional models of transport of heavy metals and organic contaminants in clay barriers and composite barriers were summarized in order to evaluate the service life of the barrier systems. The analytical solutions include the solution to a one-dimensional model of diffusion of contaminants in clay barriers under piecewise linear adsorption conditions, the solution to a one-dimensional model of transport of contaminants in composite barriers with geomembrane defects, and the solution to a coupled model of transport of pollutants in clay barriers under thermal effects. The reliability of high-gravity centrifuge tests of long-term transport of contaminants through barriers was assessed. Field investigation was carried out in a 17-year old landfill in Anhui Province. The results showed that the maximum migration depth of chloride ion reached 9 m, and the maximum migration depth of sodium ions and COD reached 3 to 4 m. The technologies of vertical barriers for control of groundwater and soil contamination were summarized and assessed. It was found that the application of soil-bentonite cutoff walls in China generates prosperity, and further research areas were discussed.关键词
渗沥液/防污屏障/离心模型试验/污染物运移/解析解/服役寿命Key words
leachate/barrier/centrifuge modeling tests/contaminant transport/analytical solution/service life分类
资源环境引用本文复制引用
陈云敏,谢海建,张春华..污染物击穿防污屏障与地下水土污染防控研究进展[J].水利水电科技进展,2016,(1):1-10,10.基金项目
国家重点基础研究发展计划(973计划)(2012CB719806) （973计划）
国家自然科学基金(51478427) （51478427）
浙江省公益性技术应用研究计划(2015C31005) （2015C31005）
