Evaluation of dissolution characteristics of magnetite in an inorganic acidic solution for the PHWR system decontamination
A protective oxide layer forms on the material surfaces of a Nuclear Power Plant during operation due to high temperature. These oxides can host radionuclides, the activated corrosion products of fission products, resulting in decommissioning workers' exposure. These deposited oxides are iron o...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Nuclear Engineering and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573323000669 |
| _version_ | 1797823800308400128 |
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| author | Ayantika Banerjee Wangkyu Choi Byung-Seon Choi Sangyoon Park Seon-Byeong Kim |
| author_facet | Ayantika Banerjee Wangkyu Choi Byung-Seon Choi Sangyoon Park Seon-Byeong Kim |
| author_sort | Ayantika Banerjee |
| collection | DOAJ |
| description | A protective oxide layer forms on the material surfaces of a Nuclear Power Plant during operation due to high temperature. These oxides can host radionuclides, the activated corrosion products of fission products, resulting in decommissioning workers' exposure. These deposited oxides are iron oxides such as Fe3O4, Fe2O3 and mixed ferrites such as nickel ferrites, chromium ferrites, and cobalt ferrites. Developing a new chemical decontamination technology for domestic CANDU-type reactors is challenging due to variations in oxide compositions from different structural materials in a Pressurized Water Reactor (PWR) system. The Korea Atomic Energy Research Institute (KAERI) has already developed a chemical decontamination process for PWRs called ‘HyBRID’ (Hydrazine-Based Reductive metal Ion Decontamination) that does not use organic acids or organic chelating agents at all. As the first step to developing a new chemical decontamination technology for the Pressurized Heavy Water Reactor (PHWR) system, we investigated magnetite dissolution behaviors in various HyBRID inorganic acidic solutions to assess their applicability to the PHWR reactor system, which forms a thicker oxide film. |
| first_indexed | 2024-03-13T10:29:25Z |
| format | Article |
| id | doaj.art-dff3e0c3b50543f38bf8c0df89438160 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-03-13T10:29:25Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-dff3e0c3b50543f38bf8c0df894381602023-05-19T04:45:14ZengElsevierNuclear Engineering and Technology1738-57332023-05-0155518921900Evaluation of dissolution characteristics of magnetite in an inorganic acidic solution for the PHWR system decontaminationAyantika Banerjee0Wangkyu Choi1Byung-Seon Choi2Sangyoon Park3Seon-Byeong Kim4Decontamination and Decommissioning Division, KAERI, Daejeon, 34057, South Korea; Quantum Energy Chemical Engineering, University of Science and Technology (UST), Daejeon, 34113, South KoreaDecontamination and Decommissioning Division, KAERI, Daejeon, 34057, South Korea; Corresponding author.Decontamination and Decommissioning Division, KAERI, Daejeon, 34057, South KoreaDecontamination and Decommissioning Division, KAERI, Daejeon, 34057, South KoreaDecontamination and Decommissioning Division, KAERI, Daejeon, 34057, South KoreaA protective oxide layer forms on the material surfaces of a Nuclear Power Plant during operation due to high temperature. These oxides can host radionuclides, the activated corrosion products of fission products, resulting in decommissioning workers' exposure. These deposited oxides are iron oxides such as Fe3O4, Fe2O3 and mixed ferrites such as nickel ferrites, chromium ferrites, and cobalt ferrites. Developing a new chemical decontamination technology for domestic CANDU-type reactors is challenging due to variations in oxide compositions from different structural materials in a Pressurized Water Reactor (PWR) system. The Korea Atomic Energy Research Institute (KAERI) has already developed a chemical decontamination process for PWRs called ‘HyBRID’ (Hydrazine-Based Reductive metal Ion Decontamination) that does not use organic acids or organic chelating agents at all. As the first step to developing a new chemical decontamination technology for the Pressurized Heavy Water Reactor (PHWR) system, we investigated magnetite dissolution behaviors in various HyBRID inorganic acidic solutions to assess their applicability to the PHWR reactor system, which forms a thicker oxide film.http://www.sciencedirect.com/science/article/pii/S1738573323000669PHWR decontaminationMagnetite dissolutionHyBRIDKinetic model |
| spellingShingle | Ayantika Banerjee Wangkyu Choi Byung-Seon Choi Sangyoon Park Seon-Byeong Kim Evaluation of dissolution characteristics of magnetite in an inorganic acidic solution for the PHWR system decontamination Nuclear Engineering and Technology PHWR decontamination Magnetite dissolution HyBRID Kinetic model |
| title | Evaluation of dissolution characteristics of magnetite in an inorganic acidic solution for the PHWR system decontamination |
| title_full | Evaluation of dissolution characteristics of magnetite in an inorganic acidic solution for the PHWR system decontamination |
| title_fullStr | Evaluation of dissolution characteristics of magnetite in an inorganic acidic solution for the PHWR system decontamination |
| title_full_unstemmed | Evaluation of dissolution characteristics of magnetite in an inorganic acidic solution for the PHWR system decontamination |
| title_short | Evaluation of dissolution characteristics of magnetite in an inorganic acidic solution for the PHWR system decontamination |
| title_sort | evaluation of dissolution characteristics of magnetite in an inorganic acidic solution for the phwr system decontamination |
| topic | PHWR decontamination Magnetite dissolution HyBRID Kinetic model |
| url | http://www.sciencedirect.com/science/article/pii/S1738573323000669 |
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