摘要
地下水是水资源的重要组成部分,若被污染,则再难于恢复到原来的状态,探讨分析地下水污染物运移特征对于保护地下水资源具有重要意义。本文以南通某沿海经济开发区为例,对研究区内的地下水和包气带进行监测,并运用地下水数值模拟软件GMS,对研究区典型污染物运移特征进行模拟预测,探讨分析土壤吸附作用对污染物运移的影响。结果表明,污染物迁移距离和运移面积与污染物源强呈正相关关系,考虑吸附作用时,COD和氨氮污染物中心点浓度分别降低29.9%和29.8%,最大迁移距离分别降低20.4%和24.9%,超标面积分别降低32.4%和29.2%,吸附作用对污染物具有显著的削减作用。
Once groundwater that is an important part of water resources is contaminated,it is difficult to restore to the original state. It is of great significance to analyze the characteristics of groundwater contaminant transport for the protection of groundwater resources. In this paper,a coastal economic development zone in Nantong as an example,this paper monitored groundwater and applied vamoose zone in the study area and groundwater numerical simulation software GMS to Simulated and predicted Migration characteristics of typical pollutants in the study area,at the same time,this paper studied and analyzed effect of soil adsorption on contaminant transport. The results showed that there was a positive correlation between the migration distance and the migration area and the source intensity. When considering adsorption,the concentration of COD and ammonia nitrogen respectively,decreased 29. 9 % and 29. 8 %,the maximum migration distance respectively decreased 20. 4 % and24. 9 %,the area respectively decreased 32. 4 % and 29. 2 %. Adsorption has a significant role in reducing pollutants.
出处
《地下水》
2017年第3期4-7,共4页
Ground water
基金
江苏省环境监测科研基金项目(1310)
关键词
地下水监测
吸附作用
溶质运移
地下水污染防治
groundwater monitoring
adsorption
solute transport
prevention and control of underground water pollution
