地下水环境评价及预测浅析

ANALYSIS OF GROUNDWATER ENVIRONMENT ASSESSMENT AND PREDICTION

结合《环境影响评价技术导则地下水环境》(HJ 610-2016)要求,通过具体案例分析地下水环境影响评价及预测的过程,案例中采用地下水预测模型系统GMS模拟地下水流场。根据案例预测结果,污水站主要构筑物发生污水渗漏或溢流事故后污染物的下渗均会对地下水环境造成影响且发生超标现象,在10 000 d时仍存在浓度超标的区域。

Groundwater environmental impact assessment and prediction procedures were analyzed through a specific case based on ＂ Technical guidelines for environmental impact assessment ― groundwater environment ＂（ HJ 610-2016） requirements and practical work experience. Groundwater Modeling System（ GMS） was used to modeling groundwater flow field in this case. The result shows that after sewage leakage or overflow accidents in main structures of sewage pumping station, the infiltration of pollutants impacts the groundwater environment and leads to over-standard concentrations. Areas with excessive concentrations remains 10000 days after sewage leakage or overflow accidents.