Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 413, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2021.125274
Keywords
Electrokinetic remediation; Nuclear decommissioning; Radioactive contamination; Sustainable remediation
Categories
Funding
- TRANSCEND (TRANsformative SCience and Engineering for Nuclear Decommissioning) consortium (EPSRC) [EP/S01019X/1]
- EPSRC/National Nuclear User Facility Phase 2 programme [EP/T011548/1]
- EPSRC [EP/S01019X/1, EP/T011548/1] Funding Source: UKRI
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Electrokinetic remediation (EKR) shows high removal efficiencies in removing radionuclides from contaminated substrates, especially in low-permeability substrates. The technology has great potential for nuclear site applications and future development.
Contamination encountered on nuclear sites includes radionuclides as well as a range of non-radioactive cocontaminants, 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.
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