Long-term geochemical evolution of the near field repository

Insights from reactive transport modelling and experimental evidences

D. Arcos (Corresponding Author), F. Grandia, C. Domènech, A. M. Fernández, M. V. Villar, Arto Muurinen, Torbjörn Carlsson, P. Sellin, P. Hernán

    Research output: Contribution to journalArticleScientificpeer-review

    20 Citations (Scopus)

    Abstract

    The KBS-3 underground nuclear waste repository concept designed by the Swedish Nuclear Fuel and Waste Management Co. (SKB) includes a bentonite buffer barrier surrounding the copper canisters and the iron insert where spent nuclear fuel will be placed. Bentonite is also part of the backfill material used to seal the access and deposition tunnels of the repository. The bentonite barrier has three main safety functions: to ensure the physical stability of the canister, to retard the intrusion of groundwater to the canisters, and in case of canister failure, to retard the migration of radionuclides to the geosphere. Laboratory experiments (< 10 years long) have provided evidence of the control exerted by accessory minerals and clay surfaces on the pore water chemistry. The evolution of the pore water chemistry will be a primordial factor on the long-term stability of the bentonite barrier, which is a key issue in the safety assessments of the KBS-3 concept.
    Original languageEnglish
    Pages (from-to)196-209
    Number of pages14
    JournalJournal of Contaminant Hydrology
    Volume102
    Issue number3-4
    DOIs
    Publication statusPublished - 2008
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Bentonite
    reactive transport
    bentonite
    repository
    Nuclear fuels
    water chemistry
    radioactive waste
    modeling
    porewater
    safety
    Radioactive Waste
    Water
    accessory mineral
    Spent fuels
    Accessories
    backfill
    Waste management
    Radioactive wastes
    Radioisotopes
    waste management

    Keywords

    • Bentonite
    • High-level nuclear waste repository
    • KBS-3
    • Reactive transport modelling

    Cite this

    Arcos, D. ; Grandia, F. ; Domènech, C. ; Fernández, A. M. ; Villar, M. V. ; Muurinen, Arto ; Carlsson, Torbjörn ; Sellin, P. ; Hernán, P. / Long-term geochemical evolution of the near field repository : Insights from reactive transport modelling and experimental evidences. In: Journal of Contaminant Hydrology. 2008 ; Vol. 102, No. 3-4. pp. 196-209.
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    title = "Long-term geochemical evolution of the near field repository: Insights from reactive transport modelling and experimental evidences",
    abstract = "The KBS-3 underground nuclear waste repository concept designed by the Swedish Nuclear Fuel and Waste Management Co. (SKB) includes a bentonite buffer barrier surrounding the copper canisters and the iron insert where spent nuclear fuel will be placed. Bentonite is also part of the backfill material used to seal the access and deposition tunnels of the repository. The bentonite barrier has three main safety functions: to ensure the physical stability of the canister, to retard the intrusion of groundwater to the canisters, and in case of canister failure, to retard the migration of radionuclides to the geosphere. Laboratory experiments (< 10 years long) have provided evidence of the control exerted by accessory minerals and clay surfaces on the pore water chemistry. The evolution of the pore water chemistry will be a primordial factor on the long-term stability of the bentonite barrier, which is a key issue in the safety assessments of the KBS-3 concept.",
    keywords = "Bentonite, High-level nuclear waste repository, KBS-3, Reactive transport modelling",
    author = "D. Arcos and F. Grandia and C. Dom{\`e}nech and Fern{\'a}ndez, {A. M.} and Villar, {M. V.} and Arto Muurinen and Torbj{\"o}rn Carlsson and P. Sellin and P. Hern{\'a}n",
    year = "2008",
    doi = "10.1016/j.jconhyd.2008.09.021",
    language = "English",
    volume = "102",
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    Arcos, D, Grandia, F, Domènech, C, Fernández, AM, Villar, MV, Muurinen, A, Carlsson, T, Sellin, P & Hernán, P 2008, 'Long-term geochemical evolution of the near field repository: Insights from reactive transport modelling and experimental evidences', Journal of Contaminant Hydrology, vol. 102, no. 3-4, pp. 196-209. https://doi.org/10.1016/j.jconhyd.2008.09.021

    Long-term geochemical evolution of the near field repository : Insights from reactive transport modelling and experimental evidences. / Arcos, D. (Corresponding Author); Grandia, F.; Domènech, C.; Fernández, A. M.; Villar, M. V.; Muurinen, Arto; Carlsson, Torbjörn; Sellin, P.; Hernán, P.

    In: Journal of Contaminant Hydrology, Vol. 102, No. 3-4, 2008, p. 196-209.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Long-term geochemical evolution of the near field repository

    T2 - Insights from reactive transport modelling and experimental evidences

    AU - Arcos, D.

    AU - Grandia, F.

    AU - Domènech, C.

    AU - Fernández, A. M.

    AU - Villar, M. V.

    AU - Muurinen, Arto

    AU - Carlsson, Torbjörn

    AU - Sellin, P.

    AU - Hernán, P.

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    AB - The KBS-3 underground nuclear waste repository concept designed by the Swedish Nuclear Fuel and Waste Management Co. (SKB) includes a bentonite buffer barrier surrounding the copper canisters and the iron insert where spent nuclear fuel will be placed. Bentonite is also part of the backfill material used to seal the access and deposition tunnels of the repository. The bentonite barrier has three main safety functions: to ensure the physical stability of the canister, to retard the intrusion of groundwater to the canisters, and in case of canister failure, to retard the migration of radionuclides to the geosphere. Laboratory experiments (< 10 years long) have provided evidence of the control exerted by accessory minerals and clay surfaces on the pore water chemistry. The evolution of the pore water chemistry will be a primordial factor on the long-term stability of the bentonite barrier, which is a key issue in the safety assessments of the KBS-3 concept.

    KW - Bentonite

    KW - High-level nuclear waste repository

    KW - KBS-3

    KW - Reactive transport modelling

    U2 - 10.1016/j.jconhyd.2008.09.021

    DO - 10.1016/j.jconhyd.2008.09.021

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    JO - Journal of Contaminant Hydrology

    JF - Journal of Contaminant Hydrology

    SN - 0169-7722

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