期刊论文

中文

有色金属(冶炼部分)

1007-7545

2022

10

109-114

10.3969/j.issn.1007-7545.2022.10.016

湖南省环保科研项目（HBKT-2021024）； 国防科工局“十三五”技术基础科研项目（JSZL2018403B001）；

本校为第一机构

为使覆盖后的铀尾矿库滩面长期稳定可靠,以我国南方湿润区某铀尾矿库为研究对象,采用自制模拟滩面覆土层氡析出试验装置,通过开展吸附试验验证木质素磺酸钙(木钙)吸附氡气性能;开展低掺量木钙改良红黏土对铀尾矿的覆盖控氡试验,研究其作为覆土层对铀尾矿库滩面的氡气阻滞效果,以及改良红黏土的强度特性.结果表明:木钙对氡具有较明显的吸附性能,6％及8％掺量木钙改良红黏土的降氡率较素红黏土分别高9％和12％;木钙改良红黏土的强度在0～6％掺量内增强,在6％～8％略微减少,但整体而言强度均有所提升.

In order to achieve long-term stability and reliability of the covered uranium mill tailings(UMTs)pond beach face, simulation studies were carried out applying a self-made experimental instrument of radon exhalation for soil overburden on the beach, aiming at a UMTs pond in humid location of southern China, to verify radon adsorption performance of calcium lignosulfonate(CaLS)through adsorption experiments.Experiments on enhanced radon retarding performance of CaLS-stabilized red clay were carried out.Effect of CaLS-stabilized red clay as soil overburden for radon retardation on the beach surf...