| 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,王志忠,肖国光.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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| 作者姓名： | 李 莹 王志忠 肖国光 |
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| 作者单位： | [1]中南大学 数学与统计学院,湖南长沙410083; [2]长沙矿冶研究院有限责任公司,湖南长沙410012 |
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| 基金项目： | 国家重大科技专项课题（2010ZX07212-008） |
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| 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MATLAB画出相关图形.
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| 关 键 词： | 土壤 重金属 复合污染 |
Study on the Heavy Metal Combined Pollution Model in Soil |
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| LI Ying,WANG Zhi-zhong,XIAO Guo-guang.Study on the Heavy Metal Combined Pollution Model in Soil[J].Mathematics in Economics,2014(3):94-98. |
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| Authors: | LI Ying WANG Zhi-zhong XIAO Guo-guang |
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| Institution: | LI Ying, WANG Zhi-zhong, XIAO Guo-guang ( 1. College of Mathematics and Statistics, Central South University, Changsha, Hunan 410083, China ; 2. Changsha Research Institute of Mining and Metallurgy, Changsha,Hunan 410012, China) |
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| 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 simula-tion example of Zn and Cd was shown as heavy metal’s vertical migration in soil and displayed by MATLAB. |
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| Keywords: | soil heavy metal combined pollution |
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