沙层对矿井污水的净化作用及矿井水的利用——以榆神府矿区萨拉乌苏组沙层为例

Purification of Sand Layer in Mine－ shaft Sewage and a New Approach to Utilization of Mine－ shaft Sewage

吸附试验和工程实践表明萨拉乌苏组沙层对矿井污水具有明显的净化作用，通过二次吸附后，矿井水中的煤粉全部消失， Pb、 As、 BOD、 COD及油类也显著减少。因此，对于严重缺水的榆神府矿区可以通过地表广泛分布的萨拉乌苏组沙层，将矿井水转化为可以利用的净水，节约污水处理费用，缓解矿区供水紧张的局面。

Absorption tests and project practice have demonstrated an obvious purification function of sand layer of Salawusu group achieved in mine－ shaft sewage. Having been absorbed for a second time, coal powders in mine－ shaft sewage all disappear, along with an obvious reduction of Pb, As, BOD, COD and oils. Hence, mine－ shaft sewage in Yushenfu Mine, which shows a serious lack of water, can be converted to usable clean water through the above－ mentioned sand layer widely distributed on the surface, thus reducing sewage disposal costs and alleviating the water shortage in the Mine.