摘要
根据长寿经济技术开发区水文地质条件,应用Visual Modflow软件建立研究区地下水水流和溶质运移数值模型,对表面处理园污水处理站污水处理池池底泄露后Cr^(6+)在地下水中的迁移趋势和环境影响进行预测评价。结果表明:Cr^(6+)向河流方向运移,10后运移距离为112 m,污染停止泄露后浓度由30 mg/L降至9 mg/L。虽然污染范围相对较小且无居民区及环境敏感点,但对地下水水质影响严重。针对化工园区企业数量较多、企业类型多样、废水污染物种类繁多且危害性大等特点,需加强园区地下水监管。
According to the hydrogeological conditions of Changshou Economic and Technological Development Zone,the groundwater flow and solute transport models were established by the Visual Modflow software,which was used to conduct a numerical simulation that forecast the transport process and the environmental impacts of Cr6 ＋ in groundwater after sewage leakage happened in sewage treatment pond bottom of the surface treatment Park. The results show that the contamination plume of Cr6 ＋ transports towards the river,the distance of contamination transport is 112 m in 10 years,the concentration of Cr6 ＋ in groundwater from the 30 mg. L- 1 to 9 mg. L- 1 after pollution stopped leaking. Although the scope of pollution is relatively small,no residential and environmentally sensitive point in this scope,but a serious impact on groundwater quality.The companies of the Chemical Industrial Park are numerous and diverse,pollutants of wastewater are hazardous. Therefore,the Chemical Industrial Park need to strengthen supervision of groundwater.
出处
《地下水》
2016年第2期88-90,共3页
Ground water
基金
环保重大专项全国地下水基础环境状况调查评估(N0.2110302)
