用于塑料中的辐射屏蔽和核废弃物处理的巴里特尾矿的回收利用
Päivi Kinnunen1, Jani Pelto1, Pekka Viitanen2
1VTT Technical Research Centre of Finland Ltd, Visiokatu 4, 33101, Tampere, Finland.
Heliyon
|February 9, 2024
概括
从工业废物中回收的巴里特有效地屏蔽了塑料和地质聚合物中的辐射. 这种二次材料为环境和经济带来了好处,在低放射性废物储存等应用中取代了初级酸盐.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
- 核工程 核工程是指核工程.
背景情况:
- 巴里特 (BaSO4) 是一种具有消耗性应用的关键原料,导致没有功能性回收.
- 采矿行业的尾矿含有大量的酸盐作为副产品.
- 消耗性使用和缺乏回收会导致大量的酸盐废物流.
研究的目的:
- 调查从工业废弃物中获得的二次巴里特作为功能材料的使用.
- 为了评估酸盐作为塑料中充填剂的有效性,用于辐射屏蔽.
- 评估酸盐作为地质聚合物中的聚合物,用于低放射性废物储存.
主要方法:
- 二次酸盐作为塑料中的填充物用于辐射屏蔽应用.
- 二次酸盐被用作地聚合物的聚合物,用于低放射性废物灰储存.
- 评估了地质聚合物的机械强度和塑料复合材料的X射线/马射线衰减.
主要成果:
- 地质聚合物复合材料保持了高机械强度,添加了0-50%的酸盐.
- 带有巴里特的塑料复合材料显示出有希望的X射线和玛射线衰减.
- 与初级酸盐相比,二级酸盐在混凝土和塑料中表现更好.
结论:
- 来自工业废物流中的酸盐适用于地聚合物和塑料中的辐射屏蔽.
- 二级酸盐可以取代初级酸盐,提供环境,经济和功能方面的优势.
- 这项研究突出了利用废物酸盐用于辐射屏蔽和废物管理的潜力.
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