低燃耗（33 GWd·t−1）乏核燃料在碱性和高碱性pH下的溶解

IF 2.6 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Nuclear Engineering and Technology Pub Date : 2025-07-03 DOI:10.1016/j.net.2025.103783

Jakub Kokinda , Daniel Serrano-Purroy , Albert Martínez-Torrents , Joan de Pablo , Frederic Clarens , Alejandro Kinbaum , Sonia García-Gómez , Javier Giménez

{"title":"低燃耗（33 GWd·t−1）乏核燃料在碱性和高碱性pH下的溶解","authors":"Jakub Kokinda , Daniel Serrano-Purroy , Albert Martínez-Torrents , Joan de Pablo , Frederic Clarens , Alejandro Kinbaum , Sonia García-Gómez , Javier Giménez","doi":"10.1016/j.net.2025.103783","DOIUrl":null,"url":null,"abstract":"<div><div>The release of some key radionuclides during the dissolution of a low burnup spent nuclear fuel (33 GWd·t<sup>−1</sup>) was measured in two leaching experiments under oxidizing conditions and in alkaline to hyperalkaline pH. The results were compared to the ones obtained in a previous experiment with the same fuel but with a higher burnup (63 GWd·t<sup>−1</sup>). Uranium, plutonium and neptunium had a faster release at low burnup, caesium a slower release and the release of molybdenum and technetium did not almost depend on burnup. The experiment at pH = 13.5 showed a possible precipitation of uranium, plutonium and neptunium and much higher molybdenum and technetium release than at alkaline pH, pointing to a higher dissolution of the ε-particles at high pH.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"57 11","pages":"Article 103783"},"PeriodicalIF":2.6000,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dissolution of low burn-up (33 GWd·t−1) spent nuclear fuel at alkaline and hyperalkaline pH\",\"authors\":\"Jakub Kokinda , Daniel Serrano-Purroy , Albert Martínez-Torrents , Joan de Pablo , Frederic Clarens , Alejandro Kinbaum , Sonia García-Gómez , Javier Giménez\",\"doi\":\"10.1016/j.net.2025.103783\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The release of some key radionuclides during the dissolution of a low burnup spent nuclear fuel (33 GWd·t<sup>−1</sup>) was measured in two leaching experiments under oxidizing conditions and in alkaline to hyperalkaline pH. The results were compared to the ones obtained in a previous experiment with the same fuel but with a higher burnup (63 GWd·t<sup>−1</sup>). Uranium, plutonium and neptunium had a faster release at low burnup, caesium a slower release and the release of molybdenum and technetium did not almost depend on burnup. The experiment at pH = 13.5 showed a possible precipitation of uranium, plutonium and neptunium and much higher molybdenum and technetium release than at alkaline pH, pointing to a higher dissolution of the ε-particles at high pH.</div></div>\",\"PeriodicalId\":19272,\"journal\":{\"name\":\"Nuclear Engineering and Technology\",\"volume\":\"57 11\",\"pages\":\"Article 103783\"},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2025-07-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Engineering and Technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1738573325003511\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"NUCLEAR SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Engineering and Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1738573325003511","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}

引用次数: 0

摘要

在氧化和碱性至高碱性条件下对低燃耗乏核燃料（33 GWd·t−1）溶出过程中一些关键放射性核素的释放量进行了测定，并与先前使用相同燃料但燃耗更高（63 GWd·t−1）的实验结果进行了比较。铀、钚和镎在低燃耗时释放速度较快，铯释放速度较慢，钼和锝的释放几乎不依赖于燃耗。实验结果表明，在pH = 13.5时，铀、钚和镎可能析出，钼和锝的释放量远高于碱性条件，表明在高pH条件下ε-颗粒的溶解量更高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Dissolution of low burn-up (33 GWd·t−1) spent nuclear fuel at alkaline and hyperalkaline pH

The release of some key radionuclides during the dissolution of a low burnup spent nuclear fuel (33 GWd·t⁻¹) was measured in two leaching experiments under oxidizing conditions and in alkaline to hyperalkaline pH. The results were compared to the ones obtained in a previous experiment with the same fuel but with a higher burnup (63 GWd·t⁻¹). Uranium, plutonium and neptunium had a faster release at low burnup, caesium a slower release and the release of molybdenum and technetium did not almost depend on burnup. The experiment at pH = 13.5 showed a possible precipitation of uranium, plutonium and neptunium and much higher molybdenum and technetium release than at alkaline pH, pointing to a higher dissolution of the ε-particles at high pH.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Nuclear Engineering and Technology 工程技术-核科学技术

CiteScore

4.80

自引率

7.40%

发文量

431

审稿时长

3.5 months

期刊介绍： Nuclear Engineering and Technology (NET), an international journal of the Korean Nuclear Society (KNS), publishes peer-reviewed papers on original research, ideas and developments in all areas of the field of nuclear science and technology. NET bimonthly publishes original articles, reviews, and technical notes. The journal is listed in the Science Citation Index Expanded (SCIE) of Thomson Reuters. NET covers all fields for peaceful utilization of nuclear energy and radiation as follows: 1) Reactor Physics 2) Thermal Hydraulics 3) Nuclear Safety 4) Nuclear I&C 5) Nuclear Physics, Fusion, and Laser Technology 6) Nuclear Fuel Cycle and Radioactive Waste Management 7) Nuclear Fuel and Reactor Materials 8) Radiation Application 9) Radiation Protection 10) Nuclear Structural Analysis and Plant Management & Maintenance 11) Nuclear Policy, Economics, and Human Resource Development