西北干旱区煤炭开采产生的矿井水大多就近排放,利用率低.同时,该地区水资源严重缺乏,尤其是生态用水紧缺,煤炭开采造成地下水资源浪费和生态用水紧缺的矛盾局面.为缓解这一矛盾,提出地面人工湿地及生态储水的设想,构建两种基于生态用水的地面处理储存矿井水的模式,该模式下矿井水通过下渗补给潜水含水层,进而供给地表植被;另一方面,利用干旱区蒸发量大的特点借助低空大气环流输送水份,增加局部降水量,从而实现改善生态环境的目的.%The mine water produced by the coal mining in the arid area of the northwest is mostly discharged, and the utiliza-tion rate is low. At the same time, the lack of water resources in the region, especially the shortage of ecological water, coal min-ing caused by waste of groundwater resources and ecological water shortage contradiction situation. In order to alleviate this contra-diction , the idea of ground artificial wetland and ecological water storage is put forward to construct two kinds of groundwater treat-ment based on ecological water storage. Under the mode, the mine water is supplied to the diving aquifer by infiltration, On the other hand, the use of large-scale evaporation of arid zones with low-altitude atmospheric circulation of water, increase the a-mount of local precipitation, in order to achieve the purpose of improving the ecological environment.
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