论文部分内容阅读
人形山口矿的尾矿坝建于1970年。在1970～1977年间,试验水冶厂的尾矿,中和废水和矿泥均排入该坝,坝内尾矿中镭的总量估计约为17居里。自1977年以来,年处理9000～10000吨矿石的堆浸系统产生的中和废水和矿泥,以及水冶厂和铀转型中间厂产生的中和废水都在继续排入此坝。因此,坝中废水的铀和镭含量分别为0.1～1ppm和1×10~(-7)～1×10~(-8)微居里/毫升。
Tailings dam of the humanoid Shankou mine was built in 1970. From 1970 to 1977, tailings, neutralized wastewater and slime from pilot hydrometallurgy plants were all discharged into the dam. The total amount of radium in the tailings of the dam was estimated to be about 17 curries. Neutralization effluents and slimes from heap leach systems that process 9,000 to 10,000 tonnes of ores each year since 1977, and neutralization wastewater from hydrometallurgical plants and uranium transformation intermediate plants, continue to be discharged into the dam. Therefore, the uranium and radium content of wastewater in dam is 0.1 ~ 1ppm and 1 × 10 -7 ~ 1 × 10 -8 microcuries / ml respectively.