| 放射性废物处置某场址地球化学工程屏障研究 |
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| 引用本文： | 于静,李明辉,张东,康厚军.放射性废物处置某场址地球化学工程屏障研究[J].成都理工大学学报(自然科学版),2009,33(4). |
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| 作者姓名： | 于静 李明辉 张东 康厚军 |
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| 作者单位： | 1. 成都理工大学地质灾害防治与地质环境保护国家重点实验室,成都,610059
2. 中国工程物理研究院,四川,绵阳,621900 |
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| 摘 要： | 针对某放射性废物处置场址的天然屏障性能差,提出建造折叠式"之"字形地球化学工程屏障,将处置物释放出的核素垂向固定在场址范围内。屏障的机理是,核素铀、锶的迁移形式分别为:UO2(CO3)22-和Sr2+,而性能相反,且处置层为表生强氧化带,降水入渗强烈,不宜建还原性屏障;故对铀和锶依次建造:阴离子吸附屏障和阳离子吸附屏障,形成可连续渗流的双重屏障。屏障的砂土物料取自场址附近,成本极低。经室内模拟实验结果表明,铀和锶等核素通过其屏障时的分配系数值都在103量级。
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| 关 键 词： | 放射性废物 处置 地球化学工程屏障 |
Study on the geochemical engineering barrier at a disposal site for radioactive wastes |
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| YU Jing,LI Ming-hui,ZHANG Dong,KANG Hou-jun.Study on the geochemical engineering barrier at a disposal site for radioactive wastes[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2009,33(4). |
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| Authors: | YU Jing LI Ming-hui ZHANG Dong KANG Hou-jun |
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| Institution: | YU Jing1,LI Ming-hui1,ZHANG Dong2,KANG Hou-jun2 1.State Key Laboratory of Geological Hazard Prevention , Geological Environment Protection,Chengdu University of Technology,Chengdu 610059,China,2.China Academy of Engineering Physics,Mianyang 621900 |
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| Abstract: | Because of the poor performance of a natural barrier and the sensitive social problem for a radioactive waste disposal site,the authors suggest to construct a folded "Z"-shaped geochemical engineering-barrier to ensure a complete safety of groundwater around the site.The barrier can vertically fix the radionuclides(released from radioactive waste) within the disposal site so as to insure the environment safety and easily construct the barrier and monitor it.According to local conditions,the transferring for... |
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| Keywords: | radioactive waste disposal geochemical engineering barrier |
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