Effects of ionic strength and humic acid on (TcO4-)-Tc-99 sorption and diffusion in Beishan granite
文献类型：期刊论文
| 作者 | Li, C.; Wang, C. L.; Liu, X. Y.; Zheng, Z.; Wang, L. H.; Zhu, Q. Q.; Kang, M. L.; Chen, T.; Liu, C. L. |
| 刊名 | JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
 |
| 出版日期 | 2012-09-01 |
| 卷号 | 293期号:3页码:751-756 |
| 关键词 | Diffusion Ionic Strength Humic Acid Tc-99 Beishan Granite |
| ISSN号 | 0236-5731 |
| DOI | 10.1007/s10967-012-1746-6 |
| 英文摘要 | In terms of pre-safety assessment of a potential site for high-level radioactive wastes disposal in China, the geochemical behavior of key radionuclides which tend to be released from the repository must be thoroughly investigated. Tc-99 is a long-lived fission product with appreciable productivity in nuclear fuel, and Tc (+7) has unlimited solubility in near-field geochemical environments. In this study, the effects of ionic strength and humic acid on (TcO4)-Tc-99 (-) sorption and diffusion in Beishan granite were investigated with through-diffusion and batch sorption experiments. Results indicated that the effective diffusion coefficients (D (e)) of (TcO4)-Tc-99 (-) in Beishan granite varied from 1.07 x 10(-12) to 1.28 x 10(-12) m(2)/s without change with ionic strength, while the distribution coefficients (K (d)) negatively correlated with ionic strength of the rock/water system. This study also indicates that there is no evident influence of humic acid concentration on the diffusion behavior of (TcO4)-Tc-99 (-) in Beishan granite, due to the limited interaction between humic acid and (TcO4)-Tc-99 (-). |
| 语种 | 英语 |
| WOS记录号 | WOS:000307405800006 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/47401]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liu, C. L. |
| 作者单位 | Peking Univ, Beijing Natl Lab Mol Sci, Coll Chem & Mol Engn, Radiochem & Radiat Chem Key Lab Fundamental Sci, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, C.,Wang, C. L.,Liu, X. Y.,et al. Effects of ionic strength and humic acid on (TcO4-)-Tc-99 sorption and diffusion in Beishan granite[J]. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,2012,293(3):751-756. |
| APA | Li, C..,Wang, C. L..,Liu, X. Y..,Zheng, Z..,Wang, L. H..,...&Liu, C. L..(2012).Effects of ionic strength and humic acid on (TcO4-)-Tc-99 sorption and diffusion in Beishan granite.JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,293(3),751-756. |
| MLA | Li, C.,et al."Effects of ionic strength and humic acid on (TcO4-)-Tc-99 sorption and diffusion in Beishan granite".JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 293.3(2012):751-756. |
入库方式： OAI收割
来源：化学研究所
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