Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.2172/417003 |
| 报告编号 | DOE/NV/10845--58 |
| 来源ID | OSTI_ID: 417003 |
| Evaluation of cobalt mobility in soils from the Nevada Test Site | |
| Papelis, C. | |
| 英文摘要 | Nuclear testing at and around the Nevada Test Site (NTS) resulted in widespread contamination from transuranic and other radionuclides, as well as from other toxic inorganic and organic contaminants. The type of contamination, including spatial distribution and type of radionuclides present, depends on the type of testing performed. Remediation of the contaminated areas is currently under way. The optimum in situ or ex situ remediation technology depends on the degree of interaction between the particular radionuclide, or contaminant in general, and the soil matrix, among other factors. The objective of this project was to evaluate the sorption affinity of NTS soils for common non-transuranic radionuclides. The sorption of cobalt (Co) on soils from two different areas of the NTS, namely the Little Feller and Cabriolet event sites, was studied. Experiments were conducted as a function of pH, solid concentration, total Co concentration, ionic strength, and particle size fraction. Preliminary results indicate that both soils have a high sorption capacity for Co. The results suggest that Co uptake is controlled by sorption on either internal, permanent-charge, ion-exchange sites of clay minerals or on amphoteric, surface-hydroxyl sites of oxides. The results further indicate strong retardation of Co in these soils, under most conditions tested and expected to be found in the respective soil environments. These conclusions are applicable to transport of radionuclides which are expected to bind strongly on oxide surfaces (e.g., Co) but the results may not be representative of the behavior of weakly binding radionuclides. These studies clearly demonstrate the importance of evaluating the mobility of radionuclides and the degree of radionuclide-soil interaction before final selection of an in situ or ex situ remediation technology for a contaminated site. |
| 出版年 | 1996 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| 来源学科分类 | 54 ENVIRONMENTAL SCIENCES ; 05 NUCLEAR FUELS ; NEVADA TEST SITE ; REMEDIAL ACTION ; SITE CHARACTERIZATION ; RADIOISOTOPES ; RADIOECOLOGICAL CONCENTRATION ; SOILS ; ENVIRONMENTAL TRANSPORT ; SORPTIVE PROPERTIES ; COBALT |
| URL | http://www.osti.gov/scitech/servlets/purl/417003 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/266684 |
| 推荐引用方式 GB/T 7714 | Papelis, C.. Evaluation of cobalt mobility in soils from the Nevada Test Site,1996. |
| 条目包含的文件 | 条目无相关文件。 | |||||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| [Papelis, C.]的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| [Papelis, C.]的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| [Papelis, C.]的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
