目前和新兴的技术用于核设施中难以测量的放射性核素的整治
Shaun D Hemming1, Jamie M Purkis1, Phillip E Warwick1
1GAU-Radioanalytical, School of Ocean and Earth Science, University of Southampton, National Oceanography Centre (Southampton), European Way, Southampton, SO14 3ZH, UK. S.D.Hemming@soton.ac.uk.
Environmental science. Processes & impacts
|November 1, 2023
概括
地下水中难以测量的放射性核素 (DTMR) 构成了核工地整治的重大挑战. 目前的技术对于特定的DTMR如-129和往往是侵入性的和无效的.
科学领域:
- 环境科学 环境科学
- 核化学 核化学 核化学
- 整治技术 整治技术
背景情况:
- 难以测量的放射性核素 (DTMR) 是核设施中普遍存在的地下水污染物.
- 这些放射性核素具有很长的半衰期和高的放射性毒性,需要在核工厂关闭后进行有效的补救.
- 目前对DTMR的检测局限性阻碍了高效,少入侵的清洁技术的发展.
研究的目的:
- 审查关键DTMR (129I,99Tc,90Sr,3H) 的修复技术的最新进展.
- 专注于这些整治技术的工业和现场规模应用.
- 确定DTMR清理的挑战和未来的研究需求.
主要方法:
- 对现有和新兴DTMR修复技术的文献综述.
- 基于其有效性,侵入性和可扩展性的整治技术的分析.
- 评估特定的放射性核酸:-129,技术-99,-90和三.
主要成果:
- 和处理 (P&T) 被广泛使用,但对129I和3H的疗效有限.
- 透反应屏障 (PRBs) 对99Tc和90Sr在规模上具有较少的侵入性和有效性.
- 植物补救对3H有希望,但由于毒性和生物可用性问题,对129I或99Tc没有希望.
结论:
- 没有任何一种单一的整治技术能够有效地解决所有针对性的DTMR.
- 在整个地点有效地修复地下水中的物种仍然是一个重大挑战.
- 进一步的研究和技术的适应对于现场规模的DTMR修复至关重要.
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