土壤重金属复合污染整体模型研究
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引用本文:李 莹 1 ,王志忠 1 ,肖国光 2.土壤重金属复合污染整体模型研究[J].经济数学,2014,(3):94-98
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李 莹 1 ,王志忠 1 ,肖国光 2 (1.中南大学 数学与统计学院湖南 长沙 4100832. 长沙矿冶研究院有限责任公司湖南 长沙 410012) 
中文摘要:在重金属迁移建模研究成果的基础上,考虑土壤对重金属的吸附特性,推导出土壤重金属复合污染物迁移转化整体模型.为求解该模型,分别引进Langmuir等温竞争吸附模型与土壤水分迁移模型.最后,以重金属Zn和Cd为例,数值模拟其在土壤中的垂向迁移过程,并利用MATLAB 画出相关图形.
中文关键词:土壤  重金属  复合污染
 
Study on the Heavy Metal Combined Pollution Model in Soil
Abstract:Based on the previous achievements and considering the soil’s adsorption characteristics of heavy metal, this paper proposed an overall migration model of heavy metal compound contaminants in soil. In order to solve the problem, the Langmuir isotherm competitive adsorption model and water migration model in soil were applied. Finally, an numerical simulation example of Zn and Cd was shown as heavy metal’s vertical migration in soil and displayed by MATLAB.
keywords:soil  heavy metal  combined pollution
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