岩溶区某锰矿尾矿回填区地下水环境数值模拟预测

针对岩溶区某锰矿尾矿回填区渗漏污染地下水问题进行影响预测,运用数值模拟方法,模拟了污染物在岩溶含水层中的时空分布情况。结果表明:在30年的模拟期内,污染物在回填区下游的最大迁移距离为300m,有9个地下水保护目标受到影响,包括分散式饮用水源井及泉水,但未影响到回填区北部的集中式饮用水源保护区。研究结果可为岩溶区的地下水污染预测提供一定的借鉴。

Numerical simulation and prediction of groundwater environment in the tailings backfill zone of a manganese mine in Karst Area

This paper predicted the degree and the range of groundwater leakage pollution in the tailings backfill zone of a manganese mine in karst area, and simulated the temporal and spatial distribution of the pollutant in karst aquifer, using the numerical simulation method. The results indicated that the maximum migration distance of the pollutant will be 300 m in downstream of the backfill zone during the 30-year simulation period, and nine groundwater protection targets will be affected by the leakage pollution, including decentralized drinking water wells and springs, while the centralized drinking water source protection area to the north of the backfill zone will not be affected. This paper can provide some references for groundwater pollution prediction in karst area.