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| 锶在砂岩和花岗岩中的分配系数及吸附机制研究 | |
| 引用本文： | 王青海,李晓红,顾义磊,陈金华.锶在砂岩和花岗岩中的分配系数及吸附机制研究[J].矿物岩石,2004,24(2):30-34. |
| 作者姓名： | 王青海 李晓红 顾义磊 陈金华 |
| 作者单位： | 1. 重庆大学西南资源开发及环境灾害控制工程教育部重点实验室,重庆,400044;新疆马兰63653部,新疆,马兰,841700 2. 重庆大学西南资源开发及环境灾害控制工程教育部重点实验室,重庆,400044 3. 重庆交通学院,重庆,400074 |
| 摘 要： | 采用批示法(BATCH)研究不同浓度条件下^87Sr在某放射性废物预选处置场围岩—花岗岩和砂岩中的吸附比，并利用面积修正公式求取分配系数。花岗岩和砂岩对^87Sr的吸附机制研究结果表明：花岗岩和砂岩对^87Sr的吸附机制为岩石中的Ca和K与水中的Sr之间的离子交换。由于砂岩中长石含量大，且胶结物质为钙质和泥质，因此砂岩对。^87Sr的吸附能力比花岗岩强。 |
| 关 键 词： | 锶 批示法 砂岩 花岗岩 离子交换 分配系数 吸附 |
| 文章编号： | 1001-6872(2004)02-0030-05 |
| 修稿时间： | 2004年1月9日 |
RESEARCH ON THE DISTRIBUTION COEFFICIENT AND THE ABSORPTION MECHANISM FOR Sr IN GRANITE AND SANDSTONE |
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| WANG Qing-hai.RESEARCH ON THE DISTRIBUTION COEFFICIENT AND THE ABSORPTION MECHANISM FOR Sr IN GRANITE AND SANDSTONE[J].Journal of Mineralogy and Petrology,2004,24(2):30-34. | |
| Authors: | WANG Qing-hai |
| Institution: | WANG Qing-hai~ |
| Abstract: | Absorption ratio represents the distributing concentration ratio of a solute between solid phase and liquid phase.With Batch way, this paper mainly studies ()~(87)Sr absorption ratio in granite and sandstone which are the bedrocks in some radioactive waste disposal field in China and the absorption ratio change with ()~(87)Sr concentrations in water.The distribution coefficient with area revision formula for ()~(87)Sr in granite and sandstone and their absorption mechanism are calculated and analyzed.The result indicates that the absorption mechanism of granite and sandstone absorbing ()~(87)Sr is the ionic exchanges between ()~(87)Sr in water and Ca and K in granite and sandstone.As there is more feldspar in sandstone than in granite ,and the cement in sandstone is calcareous and mud, so the ability of ()~(87)Sr absorption of sandstone is stronger than that of granite. |
| Keywords: | distribution coefficient absorption ionic exchange |
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