| 花岗岩介质中Sr、I和Pu的扩散行为 |
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| 引用本文： | 党海军,侯小琳,刘文元,刘冲,徐江.花岗岩介质中Sr、I和Pu的扩散行为[J].核化学与放射化学,2014,36(1):53-59. |
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| 作者姓名： | 党海军 侯小琳 刘文元 刘冲 徐江 |
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| 作者单位： | 1.西北核技术研究所，陕西 西安710024；2.Center for Nuclear Technologies, Technical University of Denmark, Roskilde DK－4000, Denmark |
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| 摘 要： | 采用穿透扩散法研究了Sr、I和Pu等3种元素在花岗岩中的扩散行为,获得了26℃下离子强度为0.1mol/L的中性水溶液环境中Sr、I和Pu的有效扩散系数分别为(1.24±0.03)×10-13、(2.88±0.02)×10-13、(1.33±0.52)×10-13 m2/s。研究表明,水溶液与花岗岩平衡过程中核素的存在形态与化学种态的变化对其迁移行为有明显影响。
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| 关 键 词： | 扩散 花岗岩 吸附 高放废物处置 Sr I Pu |
Diffusivity of Sr,I and Pu in Granite With Through-Diffusion Experiment |
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| DANG Hai-jun;HOU Xiao-lin;LIU Wen-yuan;LIU Chong;XU Jiang.Diffusivity of Sr,I and Pu in Granite With Through-Diffusion Experiment[J].Journal of Nuclear and Radiochemistry,2014,36(1):53-59. |
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| Authors: | DANG Hai-jun;HOU Xiao-lin;LIU Wen-yuan;LIU Chong;XU Jiang |
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| Affiliation: | 1.Northwest Institute of Nuclear Technology, Xi’an 710024, China；2.Center for Nuclear Technologies, Technical University of Denmark, Roskilde DK-4000, Denmark |
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| Abstract: | The diffusion behavior of Sr, I and Pu in granite was investigated by through-diffusion experiment. The effective diffusion coefficients of Sr, I and Pu in granite at 26℃ were determined to be (1.24±0.03)×10-13m2/s, (2.88±0.02)×10-13m2/s and (1.33±0.52)×10-13m2/s, respectively. It is also observed that the speciation and species distribution of element have significant effects on its diffusion behavior. |
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| Keywords: | diffusion granite sorption high-level radioactive waste disposal Sr I Pu |
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