不同抽注比例控制对地浸采铀矿山地下水环境影响的实践与探索

地下水环境影响是原地浸出采铀矿山最为重要、最为关注的环保问题,而抽液量与注液量比例的控制又是调节环境影响大小的关键手段。三十多年来,新疆某地浸铀矿山在科研、试验、生产的同时不断探索不同抽注比例对地下水的环境影响,在地下水环境保护方面经历了抽大于注控制比例从3%到0.3%的实践过程。通过运行控制、国控点监测、监测井监测、不同控制比例试验及地下水数值模型建立等方式证明,在不同抽注比例控制下,地下水环境影响范围是可控的。

Practice and Exploring of Different Proportional Control of Drawing and Injection of Leaching Solution for the In-situ Leaching Uranium and Its Impact on the Groudwater Environment

The influence of in-situ leaching at uranium mine to groundwater environment is the most important and the most concern of environmental protection issue.But the drawing and injection fluid proportion control of leaching solution volume is the most key means to the size of the environmental impact.Through 30 years scientific research,test,production and continuously exploring the influence of different drawing and injection ratio of leaching solution volume to the environmental impact at one Xinjiang uranium mine,3％ to 0.3％ the ratio of drawing to injection fluid proportion control of leaching solution volume is employed in the process for the groundwater environmental protection.By running control,the control points monitoring,monitoring well monitoring,different proportion control test and establishment of groundwater numerical model,practices indicate that under the different ratio of drawing and injection proportional control,groundwater environment impact range is controllable.