2015
DOI: 10.1515/nuka-2015-0103
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Multibarrier system preventing migration of radionuclides from radioactive waste repository

Abstract: Abstract. Safety of radioactive waste repositories operation is associated with a multibarrier system designed and constructed to isolate and contain the waste from the biosphere. Each of radioactive waste repositories is equipped with system of barriers, which reduces the possibility of release of radionuclides from the storage site. Safety systems may differ from each other depending on the type of repository. They consist of the natural geological barrier provided by host rocks of the repository and its sur… Show more

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Cited by 14 publications
(4 citation statements)
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“…This multi-barrier consists of both engineered/artificial retention structures (e.g., waste forms, canisters, buffers, backfills, seals and plugs) and geological/natural materials (e.g., the host rock). Over time and depending on the host rock type, these barriers may become saturated with groundwater and may lose their ability to provide complete containment, thus releasing radionuclides into the environment (Olszewska et al, 2015). In fact, upon contact with groundwater, up to 20% of the 79 Se content in the nuclear waste may be released within the 'instant release fraction (IRF)' after canister failure together with 36 Cl and 129 I (Johnson & McGinnes, 2002;Yu & Weetjens, 2016).…”
Section: Underground Reactivity and Dispersionmentioning
confidence: 99%
“…This multi-barrier consists of both engineered/artificial retention structures (e.g., waste forms, canisters, buffers, backfills, seals and plugs) and geological/natural materials (e.g., the host rock). Over time and depending on the host rock type, these barriers may become saturated with groundwater and may lose their ability to provide complete containment, thus releasing radionuclides into the environment (Olszewska et al, 2015). In fact, upon contact with groundwater, up to 20% of the 79 Se content in the nuclear waste may be released within the 'instant release fraction (IRF)' after canister failure together with 36 Cl and 129 I (Johnson & McGinnes, 2002;Yu & Weetjens, 2016).…”
Section: Underground Reactivity and Dispersionmentioning
confidence: 99%
“…19. Sodalite Group (name of mineral changes with anions sequestered in cage structure) [37,264,295,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,313], Figure 19.…”
Section: Crystalline Ceramic Phasementioning
confidence: 99%
“…Metody numeryczne wykorzystywane są również w zagadnieniach pokrewnych, związanych z wymianą masy w ośrodkach geologicznych. Przykładem może być prognozowanie propagacji zanieczyszczeń [11].…”
Section: Wprowadzenieunclassified