Dissolution of plasma treated non-radioactive surrogate cemented concentrates and ion exchange resins in KOH solution at 40 °C

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Dissolution of plasma treated non-radioactive surrogate cemented concentrates and ion exchange resins in KOH solution at 40 °C. / Ferrand, Karine; Caes, Sébastien; Lemmens, Karel; Meert, Katrien.

IOP Conference Series: Materials Science and Engineering. Vol. 818 2020. ed. IOP Publishing, 2020. p. 1-9 012016.

Research output: Contribution to report/book/conference proceedingsIn-proceedings paper

Harvard

Ferrand, K, Caes, S, Lemmens, K & Meert, K 2020, Dissolution of plasma treated non-radioactive surrogate cemented concentrates and ion exchange resins in KOH solution at 40 °C. in IOP Conference Series: Materials Science and Engineering. 2020 edn, vol. 818, 012016, IOP Publishing, pp. 1-9, 2020 - EC, Manchester, United Kingdom, 2020-02-04. https://doi.org/10.1088/1757-899X/818/1/012016

APA

Ferrand, K., Caes, S., Lemmens, K., & Meert, K. (2020). Dissolution of plasma treated non-radioactive surrogate cemented concentrates and ion exchange resins in KOH solution at 40 °C. In IOP Conference Series: Materials Science and Engineering (2020 ed., Vol. 818, pp. 1-9). [012016] IOP Publishing. https://doi.org/10.1088/1757-899X/818/1/012016

Vancouver

Author

Ferrand, Karine ; Caes, Sébastien ; Lemmens, Karel ; Meert, Katrien. / Dissolution of plasma treated non-radioactive surrogate cemented concentrates and ion exchange resins in KOH solution at 40 °C. IOP Conference Series: Materials Science and Engineering. Vol. 818 2020. ed. IOP Publishing, 2020. pp. 1-9

Bibtex - Download

@inproceedings{a43f6efb6b814017b0d30917bd6251bd,
title = "Dissolution of plasma treated non-radioactive surrogate cemented concentrates and ion exchange resins in KOH solution at 40 °C",
abstract = "In Belgium, plasma incineration is a possible option to (re-)condition low and intermediate level short-lived waste streams in order to obtain end products which can fulfill the criteria developed for a near surface disposal facility. In this study, the chemical durability of lasma treated non-radioactive surrogate cemented concentrates and ion exchange resins (or plasma slags) was investigated by performing MCC-1 leach tests in a KOH solution at pH 13.5 and 40 °C. Results showed that initial dissolution rates of plasma slags were similar to that of SON68-I glass, and final dissolution rates around one order of magnitude lower. SEM analysis revealed the presence of alteration layers rich in K, Ca and Fe, which probably act as diffusion barriers and, associated with the increase of Si and Al concentration in solution, lead to the decrease of the plasma slag dissolution rates.",
keywords = "Low and Intermediate Level Waste, MCC-1 leach tests, Alkaline pH, Near surface disposal facility, THERAMIN project, Plasma treated non-radioactive surrogate cemented concentrates and ion exchange resins (plasma slags)",
author = "Karine Ferrand and S{\'e}bastien Caes and Karel Lemmens and Katrien Meert",
note = "Score=3",
year = "2020",
month = "4",
day = "22",
doi = "10.1088/1757-899X/818/1/012016",
language = "English",
volume = "818",
pages = "1--9",
booktitle = "IOP Conference Series: Materials Science and Engineering",
publisher = "IOP Publishing",
edition = "2020",

}

RIS - Download

TY - GEN

T1 - Dissolution of plasma treated non-radioactive surrogate cemented concentrates and ion exchange resins in KOH solution at 40 °C

AU - Ferrand, Karine

AU - Caes, Sébastien

AU - Lemmens, Karel

AU - Meert, Katrien

N1 - Score=3

PY - 2020/4/22

Y1 - 2020/4/22

N2 - In Belgium, plasma incineration is a possible option to (re-)condition low and intermediate level short-lived waste streams in order to obtain end products which can fulfill the criteria developed for a near surface disposal facility. In this study, the chemical durability of lasma treated non-radioactive surrogate cemented concentrates and ion exchange resins (or plasma slags) was investigated by performing MCC-1 leach tests in a KOH solution at pH 13.5 and 40 °C. Results showed that initial dissolution rates of plasma slags were similar to that of SON68-I glass, and final dissolution rates around one order of magnitude lower. SEM analysis revealed the presence of alteration layers rich in K, Ca and Fe, which probably act as diffusion barriers and, associated with the increase of Si and Al concentration in solution, lead to the decrease of the plasma slag dissolution rates.

AB - In Belgium, plasma incineration is a possible option to (re-)condition low and intermediate level short-lived waste streams in order to obtain end products which can fulfill the criteria developed for a near surface disposal facility. In this study, the chemical durability of lasma treated non-radioactive surrogate cemented concentrates and ion exchange resins (or plasma slags) was investigated by performing MCC-1 leach tests in a KOH solution at pH 13.5 and 40 °C. Results showed that initial dissolution rates of plasma slags were similar to that of SON68-I glass, and final dissolution rates around one order of magnitude lower. SEM analysis revealed the presence of alteration layers rich in K, Ca and Fe, which probably act as diffusion barriers and, associated with the increase of Si and Al concentration in solution, lead to the decrease of the plasma slag dissolution rates.

KW - Low and Intermediate Level Waste

KW - MCC-1 leach tests

KW - Alkaline pH

KW - Near surface disposal facility

KW - THERAMIN project

KW - Plasma treated non-radioactive surrogate cemented concentrates and ion exchange resins (plasma slags)

UR - https://ecm.sckcen.be/OTCS/llisapi.dll/open/38379167

U2 - 10.1088/1757-899X/818/1/012016

DO - 10.1088/1757-899X/818/1/012016

M3 - In-proceedings paper

VL - 818

SP - 1

EP - 9

BT - IOP Conference Series: Materials Science and Engineering

PB - IOP Publishing

ER -

ID: 6793060