玻璃结合的莫纳矿废弃物形式用于兰化物和动化物固定:从理论设计到规模化生产和表征
Miroslava Peterson1, Brian J Riley1, Xiaonan Lu1
1Pacific Northwest National Laboratory, Richland, Washington 99334, United States.
ACS omega
|August 11, 2025
概括
铁酸盐玻璃有效地使化盐反应堆废物中的稀土元素不动. 这项研究证明了可扩展的耐用废物形式的生产,以确保安全地质处理.
科学领域:
- 材料科学 材料科学 材料科学
- 核工程 核工程是指核工程.
- 环境科学 环境科学
背景情况:
- 核废物管理对于全球环境安全至关重要.
- 盐反应堆产生盐形式的废物,需要对中子毒和稀土元素 (REEs) 进行实时处理.
- 长期地质处置需要耐用的废物形式来固定REE.
研究的目的:
- 开发和评估铁酸盐玻璃作为可再生能源的耐用废物形式,来自化盐反应堆.
- 评估铁酸盐玻璃能够吸收高度的废弃能源的能力.
- 为了证明铁酸盐玻璃废物形式生产的可扩展性.
主要方法:
- 铁酸盐玻璃废弃物形式的制备,具有不同的 (Nd) 载荷.
- 批量生产范围从小 (23克) 到大 (1600克) 的规模.
- 材料属性的表征,包括NdPO4含量,机械弹性和化学耐久性.
主要成果:
- 成功制备的铁酸盐玻璃具有高的Nd负载 (高达37%质量).
- 产生的材料含有高达75质量%的NdPO4,提高了机械弹性.
- 已证明开发的废物形式的特殊化学耐用性.
结论:
- 铁酸盐玻璃对于固定核废物中可再生能源非常有效.
- 开发的废物形式具有出色的机械和化学耐用性,可用于地质处置.
- 从实验室成功扩展到生产,证明了这种废物管理战略的可行性.
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