地下水抽出处理技术在离子型稀土矿山的工程应用

南方离子型稀土矿山在采用地浸工艺开采过程中,由于水文地质条件和浸矿母液的渗漏,对地下水环境造成一定的影响。为解决离子型稀土矿地下水污染问题,基于赣州稀土矿业有限公司矿山水文地质条件、无铵开采新工艺特点以及地下水与地表水补排关系,赣州稀土矿业有限公司提出一套新的地下水过程监管及末端治理措施处理工艺。针对边界矿区地下水末端治理,开展了小流域地下水抽出处理工程项目建设。根据地下水抽出系统项目运行效果,可以有效控制稀土开采活动对地下水环境的影响。工程实践表明,地下水抽出处理技术具有处理快速、适用性广,为有效解决离子型稀土矿山地下水污染防控提供了可靠的途径。

Application of Groundwater Pumping Treatment Technology in Ion-type Rare Earth Mine

Due to hydrogeological conditions and leakage of leaching mother solution, groundwater environment is seriously threatened during process of in-situ leaching of ionic rare earth mines in South China. To solve the problem of groundwater pollution of ionic type rare-earth ore, Ganzhou Rare Earth Mining Co., Ltd. put forward a new process of groundwater monitoring and end treatment technology basing on Ganzhou rare earth mine hydrogeological conditions, ammonium-free mining technology, and relationship between groundwater and surface water drainage. Focusing on groundwater end treatment in boundary mining area, groundwater pumping and treatment project construction in small watershed was carried out. According to operation effect of groundwater extraction system project, influence of rare earth mining activities on groundwater environment can be effectively controlled. The engineering practice shows that the groundwater extraction treatment technology has advantages of rapid treatment and wide applicability, which provides a reliable way to effectively solve groundwater pollution prevention and control of ionic rare earth mines.