Towards the application of electrokinetic remediation for nuclear site decommissioning.
Towards the application of electrokinetic remediation for nuclear site decommissioning.
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DOI：
10.1016/j.jhazmat.2021.125274
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发表时间：
2021-02
影响因子：
13.6
通讯作者：
Jamie M. Purkis;P. Warwick;J. Graham;S. D. Hemming;A. Cundy
中科院分区：
文献类型：
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作者：
Jamie M. Purkis;P. Warwick;J. Graham;S. D. Hemming;A. Cundy
在核场址遇到的污染包括放射性核素以及一系列非放射性共污染物，通常存在于混凝土或粘土等低渗透性基质中。然而，许多商业补救技术在这些基质中是无效的。相比之下，电动修复（EKR），其中施加电流以从处理的介质中去除污染物，在低渗透性基质中保持高去除效率。在这里，我们评估最近的发展EKR去除放射性核素污染的基板，包括铯，铀和其他，以及目前的好处和限制，这项技术。此外，我们评估的EKR核现场应用的现状，使用现实世界的例子，并概述未来应用的关键领域。
Contamination encountered on nuclear sites includes radionuclides as well as a range of non-radioactive co-contaminants, often in low-permeability substrates such as concretes or clays. However, many commercial remediation techniques are ineffective in these substrates. By contrast, electrokinetic remediation (EKR), where an electric current is applied to remove contaminants from the treated media, retains high removal efficiencies in low permeability substrates. Here, we evaluate recent developments in EKR for the removal of radionuclides in contaminated substrates, including caesium, uranium and others, and the current benefits and limitations of this technology. Further, we assess the present state of EKR for nuclear site applications using real-world examples, and outline key areas for future application.