在酸盐废弃物溶液中模拟和放射性核酸的优化水泥固定,通过天然酸盐添加剂
Gabriel Iklaga1, Nándor Kaposy2, István Tolnai2
1Lithosphere Fluid Research Lab, Institute of Geography and Geology, Eotvos Lorand University, Eotvos Lorand Tudomanyegyetem, Pazmany Peter Setany 1/C, Budapest, 1117, Hungary.
Environmental science and pollution research international
|January 29, 2026
概括
克林诺皮托利特添加剂有效地固定在水泥模板中的,用于酸盐废物溶液. 未经处理的克林诺皮托利特显示出最高的吸附率,在波特兰水泥/硫硫氨酸水泥混合物中占5%的克林诺皮托利特,为废物管理提供最佳的稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 放射性废物管理需要有效地固定危险污染物,如和.
- 酸盐废物溶液由于和的溶解性而带来了挑战.
- 热石,如clinoptilolite和mordenite,正在因其在污染物捕获中的离子交换特性而受到研究.
研究的目的:
- 评估在水泥矩阵中含有clinoptilolite和mordenite的添加剂的吸附能力,以固定和.
- 评估热带石比例对波特兰水泥 (PC) 和硫氨酸水泥 (CSAC) 混合物中污染物的稳定性和可性的影响.
- 在污染物固化后分析水泥基质的物理和化学变化.
主要方法:
- 使用模拟的酸盐废物溶液与-137和-137.7进行批量吸附实验.
- 在不同比例的PC/CSAC混合物中加入热石.
- 在11天的时间内进行ASTM标准漏试验.
- 压力强度测试,扫描电子显微镜 (SEM),X射线衍射 (XRD),感应合等离子光辐射光谱 (ICP-OES) 和质谱 (ICP-MS) 用于材料表征和液分析.
主要成果:
- 未经处理的含有克林诺皮托利特的水泥模板在酸液体废物中表现出最高的吸附能力.
- 用KCuHFC处理的带有热的样本显示吸附率降低.
- 在PC/CSAC混合物中添加5%的clinoptilolite,使得固化废物具有最佳的物理和化学稳定性.
结论:
- 克林诺皮托莱特是一种有前途的添加剂,可以通过化在酸盐废物溶液中固定.
- 热石的处理方法显著影响其吸附效率.
- 在水泥混合物中优化的热含量提高了废物形式的稳定性,并降低了污染物的透性.
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