EURAD State-of-the-Art Report: Assessment of the chemical evolution at the disposal cell scale – part II – gaining insights into the geochemical evolution

Long time frames are to be considered in the safety and performance assessment of deep geological disposal of intermediate and high level radioactive waste. Geochemical conditions will change in the waste, conditioning matrix, waste package, engineered barriers and the host rock–all components prese...

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Main Authors: Guido Deissmann, Erika Neeft, Diederik Jacques
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-01-01
Series:Frontiers in Nuclear Engineering
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Online Access:https://www.frontiersin.org/articles/10.3389/fnuen.2024.1433257/full
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author Guido Deissmann
Erika Neeft
Diederik Jacques
author_facet Guido Deissmann
Erika Neeft
Diederik Jacques
author_sort Guido Deissmann
collection DOAJ
description Long time frames are to be considered in the safety and performance assessment of deep geological disposal of intermediate and high level radioactive waste. Geochemical conditions will change in the waste, conditioning matrix, waste package, engineered barriers and the host rock–all components present at the disposal cell scale. This aspect of geological disposal was the focus of the work package ACED (Assessment of chemical evolution of intermediate level (ILW) and high level (HLW) waste at disposal cell scale) in the EURAD project (the European Joint Programme on Radioactive Waste Management). The first part of this review provided a narrative of the geochemical evolution of the disposal cell. In this second part, an overview is given about methods and approaches that can be used to gain further insights into the processes driving the geochemical evolution, more in particular (i) laboratory and in-situ experiments, (ii) archaeological and natural analogues, and (iii) modelling tools. The review concludes with a short discussion on the consequences on material properties, waste forms and radionuclide mobility.
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spelling doaj-art-d304e7d513e7448b899f2399e57e441a2025-01-20T07:20:08ZengFrontiers Media S.A.Frontiers in Nuclear Engineering2813-34122025-01-01310.3389/fnuen.2024.14332571433257EURAD State-of-the-Art Report: Assessment of the chemical evolution at the disposal cell scale – part II – gaining insights into the geochemical evolutionGuido Deissmann0Erika Neeft1Diederik Jacques2Forschungszentrum Jülich GmbH, Jülich, GermanyCOVRA, Nieuwdorp, NetherlandsBelgian Nuclear Research Centre (SCK CEN), Mol, BelgiumLong time frames are to be considered in the safety and performance assessment of deep geological disposal of intermediate and high level radioactive waste. Geochemical conditions will change in the waste, conditioning matrix, waste package, engineered barriers and the host rock–all components present at the disposal cell scale. This aspect of geological disposal was the focus of the work package ACED (Assessment of chemical evolution of intermediate level (ILW) and high level (HLW) waste at disposal cell scale) in the EURAD project (the European Joint Programme on Radioactive Waste Management). The first part of this review provided a narrative of the geochemical evolution of the disposal cell. In this second part, an overview is given about methods and approaches that can be used to gain further insights into the processes driving the geochemical evolution, more in particular (i) laboratory and in-situ experiments, (ii) archaeological and natural analogues, and (iii) modelling tools. The review concludes with a short discussion on the consequences on material properties, waste forms and radionuclide mobility.https://www.frontiersin.org/articles/10.3389/fnuen.2024.1433257/fullradioactive waste disposaldisposal cellchemical evolutionexperimental methodsanaloguesreactive transport
spellingShingle Guido Deissmann
Erika Neeft
Diederik Jacques
EURAD State-of-the-Art Report: Assessment of the chemical evolution at the disposal cell scale – part II – gaining insights into the geochemical evolution
Frontiers in Nuclear Engineering
radioactive waste disposal
disposal cell
chemical evolution
experimental methods
analogues
reactive transport
title EURAD State-of-the-Art Report: Assessment of the chemical evolution at the disposal cell scale – part II – gaining insights into the geochemical evolution
title_full EURAD State-of-the-Art Report: Assessment of the chemical evolution at the disposal cell scale – part II – gaining insights into the geochemical evolution
title_fullStr EURAD State-of-the-Art Report: Assessment of the chemical evolution at the disposal cell scale – part II – gaining insights into the geochemical evolution
title_full_unstemmed EURAD State-of-the-Art Report: Assessment of the chemical evolution at the disposal cell scale – part II – gaining insights into the geochemical evolution
title_short EURAD State-of-the-Art Report: Assessment of the chemical evolution at the disposal cell scale – part II – gaining insights into the geochemical evolution
title_sort eurad state of the art report assessment of the chemical evolution at the disposal cell scale part ii gaining insights into the geochemical evolution
topic radioactive waste disposal
disposal cell
chemical evolution
experimental methods
analogues
reactive transport
url https://www.frontiersin.org/articles/10.3389/fnuen.2024.1433257/full
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