地下水污染物迁移变化研究

Study on Migration and Change of Groundwater Pollutants

为弄清安乡县地下水污染物运动趋势及规律,在地下水污染物调查的基础上,确定初始浓度与污染物弥散度,采用地下水动力模型,分析地下水中氨氮浓度分布的时空变化规律。以现状为基准,按照氨氮浓度降低20%、50%两种情形,预测分析2022年和2030年的浓度分布变化趋势。结果可为安乡县地下水水资源保护供依据。

This paper studies the movement trend and law of groundwater pollutants in Anxiang county.In this paper,based on the investigation of groundwater pollutants,the initial concentration and dispersion of pollutants are determined,and the temporal and spatial variation of ammonia nitrogen concentration distribution in groundwater is analyzed by using groundwater dynamic model.Based on the current situation,the change trend of ammonia nitrogen concentration distribution in 2022 and 2030 is predicted and analyzed according to the two situations of 20%and 50%reduction of ammonia nitrogen concentration.This provides a basis for the protection of groundwater resources in Anxiang county.