先进的玻璃化和选择性分区策略,以实现可持续的高水平放射性液体废物管理
Jayaprakasam Selvakumar1, Gattu Suneel2, Chetan Parkash Kaushik3
1Integrated Nuclear Recycle Plant, Nuclear Recycle Board, Bhabha Atomic Research Centre, Kalpakkam, 603 102, Tamil Nadu, India; Homi Bhabha National Institute, Anushakthi Nagar, 600 094, Maharashtra, India.
Chemosphere
|February 27, 2026
概括
高水平放射性液体废物 (HLW) 的管理正在发展. 选择性玻璃化和放射性核素回收提供了一种可持续的方法,将废物转化为有价值的资源,并减少处置的影响.
科学领域:
- 核化学和材料科学 核化学和材料科学
- 可持续的废物管理 可持续的废物管理
背景情况:
- 来自核燃料再加工的高水平放射性液体废物 (HLW) 提出了重大管理挑战.
- 传统的玻璃化将放射性核素固定,但阻止了有价值的同位素的回收.
研究的目的:
- 通过选择性玻璃化和战略性放射性核素回收,审查可持续的HLW管理的综合框架.
- 探索HLW处理和资源利用的先进技术.
主要方法:
- 集成先进的玻璃化技术 (例如,朱尔加热的陶化器,冷感应化器) 与分区工艺 (例如,UREX+,DIAMEX-SANEX,提取色谱).
- 对量身定制的玻璃和玻璃陶形式的净化因素和废物装载能力的评估.
主要成果:
- 达到超过103的净化系数和15-30%的废物负载.
- 确定了回收的放射性核酸,如Sr-90,Cs-137和Am-241的重复使用潜力.
- 通过去除产生热量的核化物,证明了储藏室热负荷 (30-40%) 和废物量 (~25%) 的潜在降低.
结论:
- 选择性玻璃化和放射性核化物回收为传统的HLW处置提供了一个可持续的替代方案.
- 这种综合方法与循环经济原则保持一致,通过使资源回收和减少环境负担.
相关概念视频
Microbial Bioremediation of Uranium
103
Microorganisms play a critical role in the transformation and immobilization of uranium in contaminated environments through four main pathways: bioreduction, biosorption, bioaccumulation, and biomineralization. These mechanisms reduce uranium’s toxicity and prevent its migration through groundwater systems, offering sustainable approaches for in situ bioremediation.Bioreduction of UraniumBioreduction is driven by anaerobic bacteria such as certain strains of Geobacter and Shewanella,...
103
Microbial Leaching
227
Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...
227


