GMS在焦化厂地下水环境影响预测中的应用研究

Application of GMS in Environmental Impact Prediction of Groundwater in Coking Plant

通过对焦化厂酚氰废水来源、主要污染因子及污染景象分析,确定酚氰废水池为主要污染源,给出污染因子排放源强;根据某焦化厂水文地质条件和地下水特征,采用GMS模拟软件对地下水环境影响进行预测,模拟区地下水流场采用Modflow进行模拟,污染物运移采用MT3D模拟。预测结果表明,污染物泄漏到潜水含水层后,污染物检出面积和超标面积随着时间增长逐渐扩大,在预测期30年时略微超出厂界,但影响范围较小。

Through the analysis on the source of phenol and cyanogen-containing wastewater,main pollution factors and pollution scene in coking plant,the phenol and cyanogen-containing wastewater pool is determined to be the main pollution source,and emissions of pollution factors are given. According to hydrogeological conditions and groundwater characteristics of the coking plant,GMS is used to predict the environmental impact of groundwater. Groundwater flow field is simulated by using MODFLOW module,and contaminant transport is simulated by using MT3 D module. The forecast results show that the detection area and the excessive area of the pollutants are gradually expanded with the time increasing,after pollutants leaking into the unconfined aquifer,and the excessive areas will go beyond the factory boundary a little in 30 years,but the influence range is very small.