酸法地浸采铀过程中地下水控制的实践

重点总结了伊犁某矿床酸法地浸采铀过程中,钻井布置、施工、监测井布置与监测、采区酸化与开采运行以及特殊情况处理等环节中有关地下水控制的具体措施。近30年的地浸开采实践、退役采区所做的地下水污染调查以及相关历史数据表明:地浸采铀过程中可通过适当的控制措施,做到不对采区外围及上下含水层造成污染,使地下水各项离子浓度均处于环保要求之内;地浸溶液的扩散运移范围处于可控状态。

Practice of Groundwater Control in Acid In-situ Leaching of Uranium

Control measures for groundwater are summarized in drilling layout,drilling construction,monitoring well arrangement and monitoring,mining and mining operation acidification and special situation processing in Yili deposit acid in-situ leaching of uranium.In nearly 30 years of in-situ leaching mining practice,the groundwater investigation of the retired mining area and historical data show that the in-situ leaching of uranium,appropriate control measures make sure not to pollute the groundwater of mine periphery and lower aquifer,and make sure that the ions concentrations are at the requirements of environmental protection.The migration range of leaching solution is under controlled.