Development of technology to reduce environmental problems via innovative water purification agents

开发通过创新水净化剂减少环境问题的技术

• 批准号: EP/V027387/1
• 负责人: Joseph Hriljac
• 金额: $ 36.08万
• 依托单位: Diamond Light Source
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FV027387%2F1
• 关键词: Development; technology; reduce; environmental; problems

In this project we aim to develop new materials for the selective removal and long-term sequestration of radioactive Sr-90. This is of importance in Japan to help in the clean-up activities around the Fukushima Daiichi Nuclear Power Plant and in the UK to help in the clean-up of legacy waste at the Sellafield site and elsewhere. Although materials exist for removing Sr-90 from contaminated water, all have some limitations and/or high cost and therefore basic research aimed towards making new and improved materials is justified. The ideal adsorbent would be highly selective for Sr-90 in the presence of larger amounts of competitive cations (e.g. Ca, Mg, Na or K), be stable and effective over a large pH range, have a good capacity for Sr-90, be reusable, be easily made in bulk at low cost and have a simple and proven route to a safe and stable wasteform after its end of use. We target materials that have the potential to fulfil all of these criteria based on preliminary synthesis work already done in Japan (Shinshu and Tohuku Universities) with essential research in the UK supporting the characterisation and understanding of how the materials work (Diamond Light Source) and the production of wasteforms after use (University of Sheffield).

在这个项目中，我们的目标是开发新材料，用于选择性去除和长期封存放射性Sr-90。这对日本帮助福岛第一核电站周围的清理活动以及对英国帮助清理塞拉菲尔德和其他地方的遗留废物都很重要。尽管存在用于从污染水中去除Sr-90的材料，但所有材料都具有一些限制和/或高成本，因此旨在制造新的和改进的材料的基础研究是合理的。理想的吸附剂在存在大量竞争性阳离子（例如Ca、Mg、Na或K）的情况下对Sr-90具有高度选择性，在大的pH范围内稳定且有效，对Sr-90具有良好的容量，可重复使用，易于以低成本大量制备，并且在其使用结束后具有简单且经证实的安全且稳定的废物形式的途径。我们的目标材料是有潜力满足所有这些标准的基础上，初步合成工作已经在日本（信州和东北大学）与必要的研究在英国支持的特性和理解如何材料的工作（钻石光源）和生产废物后使用（谢菲尔德大学）。