Chlorination technique for decontamination of radioactive concrete waste contaminated by Sr
| Autor: | Sung-Wook Kim, Keun-Young Lee, Maeng-Kyo Oh, Min Ku Jeon |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Health Toxicology and Mutagenesis Inorganic chemistry Public Health Environmental and Occupational Health Oxide chemistry.chemical_element Human decontamination Contamination 010403 inorganic & nuclear chemistry 01 natural sciences Pollution 0104 chemical sciences Analytical Chemistry chemistry.chemical_compound Nuclear Energy and Engineering chemistry Chlorine Radiology Nuclear Medicine and imaging Spectroscopy |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 328:195-203 |
| ISSN: | 1588-2780 0236-5731 |
| DOI: | 10.1007/s10967-021-07639-6 |
| Popis: | The feasibility of the chlorination reaction as a decontamination technique for 90Sr-contaminated concrete waste was investigated via thermodynamic and experimental approaches. Thermodynamic calculations suggested that SrO reacts with chlorine prior to CaO, CaCO3, and MgO, while other oxides remain in their oxide forms. It was found experimentally that a temperature of at least 700 °C is required to convert more than 40% of SrO into SrCl2. A set of comparison experiments performed at various temperatures verified that CaO exhibits higher conversion ratios than those of SrO, while significantly lower ratios were observed with CaCO3. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|