摘要
针对云南保山盆地地下水污染情况,在查明研究区的水文地质条件基础上,仅考虑氨氮污染物在对流及弥散作用的情况下,利用GMS建立其溶质运移模型,模拟预测1 000 d、3 000 d及5 000 d氨氮的物理位置特征及迁移规律,结果显示,氨氮在地下水运移的过程中,不同浓度的污染晕是以高浓度为中心基本对称分布的,其浓度含量由中心向边缘逐渐变小,说明在对流及弥散作用下,氨氮是沿着水流方向随地下水缓慢运移,并且由迁移距离与时间关系图得出,在运移过程中,对流作用对氨氮的运移起决定性作用.
Abstract
Based on the hydrogeological conditions of the study area,the solute transport model of ammonia nitrogen pollutants under convection and dispersion was established by using GMS to simulate and predict the physical location characteristics and migration law of ammonia nitrogen at 1000 d,3000 d and 5000 d.The results show that in the process of ammonia nitrogen transport in groundwater,the halo of pollution with different concentrations The results show that the pollution halo of different concentrations of ammonia nitrogen is symmetrically distributed with high concentration as the center,and its concentration content gradually decreases from the center to the edge,which indicates that the ammonia nitrogen is slowly transported with the groundwater under the convection and dispersion effects.
NETL
NSTL
维普
万方数据