| 黄铁矿在维持高放废物处置库近场还原性环境中的作用 |
| |
| 引用本文： | 陈涛,田文宇,黎春,刘晓宇,王路化,孙茂,郑仲,朱建波,刘春立.黄铁矿在维持高放废物处置库近场还原性环境中的作用[J].物理化学学报,2010,26(9):2489-2493. |
| |
| 作者姓名： | 陈涛 田文宇 黎春 刘晓宇 王路化 孙茂 郑仲 朱建波 刘春立 |
| |
| 作者单位： | Beijing National Laboratory for Molecular Sciences, Radiochemistry&Radiation Chemistry Key Laboratory for Fundamental Science, Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P.R. China |
| |
| 基金项目： | 国家自然科学基金，教育部博士点基金，国防科工委军工遗留专项基金，中央高校基本科研业务费专项资金和北京大学仪器测试基金 |
| |
| 摘 要： | 研究了黄铁矿受60Coγ射线辐照后对地下水还原性环境的影响.辐照剂量率为200Gy·min-1,总吸收剂量为5×106Gy.通过分析辐照前后以及与地下水共同辐照后黄铁矿的结构和组成,发现60Co的γ射线可使地下水发生辐解反应,从而将黄铁矿氧化;但无论是直接辐照还是与地下水共同辐照,60Co的γ辐射均不改变黄铁矿的结构.黄铁矿可以消耗地下水辐解产生的氧化性产物,有利于维持处置库近场的还原性环境,提高处置库的安全性.
|
| 关 键 词： | 黄铁矿 γ辐射 近场 还原性环境 高放废物 安全评价 |
| 收稿时间： | 2010-02-25 |
| 修稿时间： | 2010-07-15 |
Role of Pyrite in Maintaining the Reductive Environment of the Near Field for a High-Level Radioactive Waste Repository |
| |
| CHEN Tao,TIAN Wen-Yu,LI Chun,LIU Xiao-Yu,WANG Lu-Hua,SUN Mao,ZHENG Zhong,ZHU Jian-Bo,LIU Chun-Li.Role of Pyrite in Maintaining the Reductive Environment of the Near Field for a High-Level Radioactive Waste Repository[J].Acta Physico-Chimica Sinica,2010,26(9):2489-2493. |
| |
| Authors: | CHEN Tao TIAN Wen-Yu LI Chun LIU Xiao-Yu WANG Lu-Hua SUN Mao ZHENG Zhong ZHU Jian-Bo LIU Chun-Li |
| |
| Institution: | Beijing National Laboratory for Molecular Sciences, Radiochemistry&Radiation Chemistry Key Laboratory for Fundamental Science, Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P.R. China |
| |
| Abstract: | The influence of pyrite irradiated by γradiation from 60Co on the reductive environment of groundwater was investigated. The dose rate was 200 Gy·min-1 and the total absorbed dose was 5×106 Gy. Our results indicate that the radiolysis reactions of the γradiation of 60Co in groundwater can help to oxidize pyrite, while the structure of pyrite is not changed. The oxidizing of pyrite consumes the radiolysis product in groundwater, which helps to maintain a reductive environment and increase the safety of the repository. |
| |
| Keywords: | Pyrite Gamma irradiation Near field Reductive environment High-level radioactive waste Safety assessment |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《物理化学学报》浏览原始摘要信息 |
| 点击此处可从《物理化学学报》下载免费的PDF全文 |
|
