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A radioanalytical phantom for assessing the efficacy of electrokinetic decontamination of entrained radioactivity within concrete media

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A radioanalytical phantom for assessing the efficacy of electrokinetic decontamination of entrained radioactivity within concrete media. / Parker, Andrew James; Joyce, Malcolm; Boxall, Colin.

In: Journal of Radioanalytical and Nuclear Chemistry, Vol. 300, No. 2, 05.2014, p. 769-777.

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Parker, Andrew James ; Joyce, Malcolm ; Boxall, Colin. / A radioanalytical phantom for assessing the efficacy of electrokinetic decontamination of entrained radioactivity within concrete media. In: Journal of Radioanalytical and Nuclear Chemistry. 2014 ; Vol. 300, No. 2. pp. 769-777.

Bibtex

@article{ce39844ee73740f09614b638237fbcd2,
title = "A radioanalytical phantom for assessing the efficacy of electrokinetic decontamination of entrained radioactivity within concrete media",
abstract = "A phantom for the evaluation of electrokinetic remediation of radioactive species from water saturated concrete is described. The phantom has been designed to be a general analogue for environments where structural concrete is saturated by radioactive aqueous solutions and where electrokinetic remediation may be deployed. It is also a specific analogue for the walls of storage ponds for legacy spend nuclear fuel pins where the pond water comprises a large volume of hazardous active waste that may penetrate the pond wall. The fabricated phantom was evaluated using a fixed electrical potential to monitor the rate of cationic transport of K+ through concrete samples of different thickness (20 and 35 mm respectively). Results of the evaluation show K+ diffusion coefficients of 5.20 × 10−13 and 7.61 × 10−13 m2 s−1 for the 20 mm and 35 mm samples, consistent with those seen in literature for the transport of caesium through concrete of similar thickness. The phantom offers a means of experimental validation of computational electrokinetic models as well as providing a basis to test the effects of electrode material on ionic transport rates, to interrogate the effects of pH on all components of the system, and as a basis for instruction, education and training in nuclear decommissioning and waste treatment.",
keywords = "Analytical phantom, Electrokinetic remediation, Nuclear decommissioning, Radioactive waste minimization, Electrochemical cell",
author = "Parker, {Andrew James} and Malcolm Joyce and Colin Boxall",
year = "2014",
month = may,
doi = "10.1007/s10967-014-3015-3",
language = "English",
volume = "300",
pages = "769--777",
journal = "Journal of Radioanalytical and Nuclear Chemistry",
issn = "0236-5731",
publisher = "Elsevier BV",
number = "2",

}

RIS

TY - JOUR

T1 - A radioanalytical phantom for assessing the efficacy of electrokinetic decontamination of entrained radioactivity within concrete media

AU - Parker, Andrew James

AU - Joyce, Malcolm

AU - Boxall, Colin

PY - 2014/5

Y1 - 2014/5

N2 - A phantom for the evaluation of electrokinetic remediation of radioactive species from water saturated concrete is described. The phantom has been designed to be a general analogue for environments where structural concrete is saturated by radioactive aqueous solutions and where electrokinetic remediation may be deployed. It is also a specific analogue for the walls of storage ponds for legacy spend nuclear fuel pins where the pond water comprises a large volume of hazardous active waste that may penetrate the pond wall. The fabricated phantom was evaluated using a fixed electrical potential to monitor the rate of cationic transport of K+ through concrete samples of different thickness (20 and 35 mm respectively). Results of the evaluation show K+ diffusion coefficients of 5.20 × 10−13 and 7.61 × 10−13 m2 s−1 for the 20 mm and 35 mm samples, consistent with those seen in literature for the transport of caesium through concrete of similar thickness. The phantom offers a means of experimental validation of computational electrokinetic models as well as providing a basis to test the effects of electrode material on ionic transport rates, to interrogate the effects of pH on all components of the system, and as a basis for instruction, education and training in nuclear decommissioning and waste treatment.

AB - A phantom for the evaluation of electrokinetic remediation of radioactive species from water saturated concrete is described. The phantom has been designed to be a general analogue for environments where structural concrete is saturated by radioactive aqueous solutions and where electrokinetic remediation may be deployed. It is also a specific analogue for the walls of storage ponds for legacy spend nuclear fuel pins where the pond water comprises a large volume of hazardous active waste that may penetrate the pond wall. The fabricated phantom was evaluated using a fixed electrical potential to monitor the rate of cationic transport of K+ through concrete samples of different thickness (20 and 35 mm respectively). Results of the evaluation show K+ diffusion coefficients of 5.20 × 10−13 and 7.61 × 10−13 m2 s−1 for the 20 mm and 35 mm samples, consistent with those seen in literature for the transport of caesium through concrete of similar thickness. The phantom offers a means of experimental validation of computational electrokinetic models as well as providing a basis to test the effects of electrode material on ionic transport rates, to interrogate the effects of pH on all components of the system, and as a basis for instruction, education and training in nuclear decommissioning and waste treatment.

KW - Analytical phantom

KW - Electrokinetic remediation

KW - Nuclear decommissioning

KW - Radioactive waste minimization

KW - Electrochemical cell

U2 - 10.1007/s10967-014-3015-3

DO - 10.1007/s10967-014-3015-3

M3 - Journal article

VL - 300

SP - 769

EP - 777

JO - Journal of Radioanalytical and Nuclear Chemistry

JF - Journal of Radioanalytical and Nuclear Chemistry

SN - 0236-5731

IS - 2

ER -