Remediation of 137Cs Contaminated Concrete Using Electrokinetic Phenomena and Ionic Salt Washes in Nuclear Energy Contexts

School of Engineering

Associated organisational unit

Nuclear

Electronic data

1-s2.0-S030438941730506X-main
Rights statement: This is the author’s version of a work that was accepted for publication in Journal of Hazardous Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Hazardous Materials, 340, 2017 DOI: 10.1016/j.jhazmat.2017.07.007
Accepted author manuscript, 508 KB, PDF document
Available under license: CC BY-NC-ND: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License

Text available via DOI:

https://doi.org/10.1016/j.jhazmat.2017.07.007
Final published version

Keywords

137-Caesium, Electrokinetic decontamination, Ionic salt washes, Concrete remediation, Nuclear decommissioning

View graph of relations

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Published

Standard

Remediation of 137Cs Contaminated Concrete Using Electrokinetic Phenomena and Ionic Salt Washes in Nuclear Energy Contexts. / Parker, Andrew ; Joyce, Malcolm John ; Boxall, Colin.
In: Journal of Hazardous Materials, Vol. 340, 15.10.2017, p. 454-462.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Bibtex

@article{3d4286b832f64e638d44f63e528e4aab,

title = "Remediation of 137Cs Contaminated Concrete Using Electrokinetic Phenomena and Ionic Salt Washes in Nuclear Energy Contexts",

abstract = "This work describes the first known the use of electrokinetic treatments and ionic salt washes to remediate concrete contaminated with 137Cs. A series of experiments were performed on concrete samples, contaminated with K+ and 137Cs, using a bespoke migration cell and an applied electric field (60 V potential gradient and current limit of 35 mA). Additionally, two samples were treated with an ionic salt wash (≤400 mol m−3 of KCl) alongside the electrokinetic treatment. The results show that the combined treatment produces removal efficiencies three times higher (>60%) than the electrokinetic treatment alone and that the decontamination efficiency appears to be proportional to the initial degree of contamination. Furthermore, the decontamination efficiencies are equivalent to previous electrokinetic studies that utilised hazardous chemical enhancement agents demonstrating the potential of the technique for use on nuclear licensed site. The results highlight the relationship between the initial contamination concentration within the concrete and achievable removal efficiency of electrokinetic treatment and other treatments. This information would be useful when selecting the most appropriate decontamination techniques for particular contamination scenarios.",

keywords = "137-Caesium, Electrokinetic decontamination, Ionic salt washes, Concrete remediation, Nuclear decommissioning",

author = "Andrew Parker and Joyce, {Malcolm John} and Colin Boxall",

note = "This is the author{\textquoteright}s version of a work that was accepted for publication in Journal of Hazardous Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Hazardous Materials, 340, 2017 DOI: 10.1016/j.jhazmat.2017.07.007",

year = "2017",

month = oct,

day = "15",

doi = "10.1016/j.jhazmat.2017.07.007",

language = "English",

volume = "340",

pages = "454--462",

journal = "Journal of Hazardous Materials",

issn = "0304-3894",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Remediation of 137Cs Contaminated Concrete Using Electrokinetic Phenomena and Ionic Salt Washes in Nuclear Energy Contexts

AU - Parker, Andrew

AU - Joyce, Malcolm John

AU - Boxall, Colin

N1 - This is the author’s version of a work that was accepted for publication in Journal of Hazardous Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Hazardous Materials, 340, 2017 DOI: 10.1016/j.jhazmat.2017.07.007

PY - 2017/10/15

Y1 - 2017/10/15

N2 - This work describes the first known the use of electrokinetic treatments and ionic salt washes to remediate concrete contaminated with 137Cs. A series of experiments were performed on concrete samples, contaminated with K+ and 137Cs, using a bespoke migration cell and an applied electric field (60 V potential gradient and current limit of 35 mA). Additionally, two samples were treated with an ionic salt wash (≤400 mol m−3 of KCl) alongside the electrokinetic treatment. The results show that the combined treatment produces removal efficiencies three times higher (>60%) than the electrokinetic treatment alone and that the decontamination efficiency appears to be proportional to the initial degree of contamination. Furthermore, the decontamination efficiencies are equivalent to previous electrokinetic studies that utilised hazardous chemical enhancement agents demonstrating the potential of the technique for use on nuclear licensed site. The results highlight the relationship between the initial contamination concentration within the concrete and achievable removal efficiency of electrokinetic treatment and other treatments. This information would be useful when selecting the most appropriate decontamination techniques for particular contamination scenarios.

AB - This work describes the first known the use of electrokinetic treatments and ionic salt washes to remediate concrete contaminated with 137Cs. A series of experiments were performed on concrete samples, contaminated with K+ and 137Cs, using a bespoke migration cell and an applied electric field (60 V potential gradient and current limit of 35 mA). Additionally, two samples were treated with an ionic salt wash (≤400 mol m−3 of KCl) alongside the electrokinetic treatment. The results show that the combined treatment produces removal efficiencies three times higher (>60%) than the electrokinetic treatment alone and that the decontamination efficiency appears to be proportional to the initial degree of contamination. Furthermore, the decontamination efficiencies are equivalent to previous electrokinetic studies that utilised hazardous chemical enhancement agents demonstrating the potential of the technique for use on nuclear licensed site. The results highlight the relationship between the initial contamination concentration within the concrete and achievable removal efficiency of electrokinetic treatment and other treatments. This information would be useful when selecting the most appropriate decontamination techniques for particular contamination scenarios.

KW - 137-Caesium

KW - Electrokinetic decontamination

KW - Ionic salt washes

KW - Concrete remediation

KW - Nuclear decommissioning

U2 - 10.1016/j.jhazmat.2017.07.007

DO - 10.1016/j.jhazmat.2017.07.007

M3 - Journal article

VL - 340

SP - 454

EP - 462

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

SN - 0304-3894

ER -

Research

Associated organisational unit

Electronic data

Links

Text available via DOI:

Keywords