Tome Architecture and management of a geological repository - Andra

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5 – B waste repository zoneFigure 5.1.10 500-litre stainless steel containerIn this subset, the waste consists of various materials, especially metals, organic matter and glassware,mixed in the same package. The average weight of the finished packages is 925 kilograms for thoseimmobilised by a cementitious material and 850 kilograms for a cement-bitumen matrix. Given thechemical content of the packages, potential production of hydrogen by radiolysis of the organic matterand conditioning matrix water also needs to be considered. The equivalent ß-γ dose rate in pseudocontact(5 cm) with the packages is roughly 0.2 Sv/h.The ninth and last subset of technological waste packages, manufactured by the CEA, contains solidwaste contaminated mainly by α emitters. Depending on its dimensions, the waste is conditioned, incompacted or non-compacted form, in 870-litre non-alloy steel containers (see Figure 5.1.11).As with the 500-litre steel containers above, two waste conditioning matrices – initially a cementbitumenmatrix, then from 1990 a cementitious material – have been used successively since thepackages were first produced. It should be noted that this package subset also includes some packagesof cemented concentrates initially conditioned in 700-litre steel drums, then reconditioned in 870-litrecontainers.Figure 5.1.11 870-litre non-alloy steel containerThe conditioned waste comprises various materials (metals, organic matter, glass, debris, etc.) mixedin the same package. The average weight of the finished packages varies between 1.6 and 2.3 metrictons, depending on the content (compacted or non-compacted, conditioning with over-drums). Giventhe chemical content of the packages, once again potential production of hydrogen by radiolysis of theorganic matter and conditioning matrix water must be considered. These packages do not releaseradiation.Dossier 2005 Granite - ARCHITECTURE AND MANAGEMENT OF A GEOLOGICAL REPOSITORY104/228
5 – B waste repository zoneThe main characteristics of the nine subsets of cemented or compacted technological waste packagesare summarised in Figure 5.1.2.Table 5.1.2Summary of the main characteristics of subsets of cemented or compactedtechnological waste packagesPackagesubsetOverall volume of thepackage (m 3 )ContainermaterialEmbedding orimmobilising matrixPresence ofmetallicmaterialsPresence oforganicmatter1 1 Concrete Cement-bitumen None x2 1.2 Fibre-reinforcedconcrete orasbestos cementCement x x3 1.8Concrete or nonalloyCement-bitumen or xx3.2 or 3.8 with over-drumsteelmortar4 0.5 Concrete Cement None x5 1.2 Fibre-reinforced Mortar x xconcrete6 0.18 Stainless steel None x x7 0.428 Stainless steel Cement None x8 0.5 Non-alloy or Cement-bitumen or xxstainless steel cementitious material9 1.22 Non-alloy steel Cement-bitumen orcementitious materialxxDossier 2005 Granite - ARCHITECTURE AND MANAGEMENT OF A GEOLOGICAL REPOSITORY105/228
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The present English version is a tr
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Contents4.1 Surface installations..
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Contents7.2.1 Harnessing the favour
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ContentsFigure 5.1.7 Non-alloy stee
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ContentsFigure 7.6.3 CU package emp
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11Study approach1.1 The main stages
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1 - Study approachSome studies were
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1 - Study approachIn France spent f
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2 - High-Level and Long-Lived waste
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3 - Design study of a repository in
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44General architecture of thereposi
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5 - B waste repository zoneTable 5.
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5 - B waste repository zoneDossier
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6 - C waste repository zone66 C was
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6 - C waste repository zoneThe inve
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6 - C waste repository zoneFigure 6
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6 - C waste repository zoneTable 6.
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6 - C waste repository zoneHence th
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6 - C waste repository zoneA value
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6 - C waste repository zoneThe pres
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6 - C waste repository zoneA thickn
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6 - C waste repository zone6.3.3.2
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6 - C waste repository zoneFor the
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6 - C waste repository zone• Seal
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6 - C waste repository zone6.6 Disp
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6 - C waste repository zone6.6.3 Co
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6 - C waste repository zoneThe slee
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6 - C waste repository zoneCOMPONEN
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7 - Spent fuel repository zoneSpent
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7 - Spent fuel repository zoneMater
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7 - Spent fuel repository zone7.1.3
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7 - Spent fuel repository zoneA sin
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7 - Spent fuel repository zoneSwede
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7 - Spent fuel repository zone• E
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7 - Spent fuel repository zoneSKB
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7 - Spent fuel repository zoneFigur
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7 - Spent fuel repository zone7.6 D
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7 - Spent fuel repository zone• E
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7 - Spent fuel repository zoneevent
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88Conclusions8.1 Generic architectu
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8 - ConclusionsThe envisaged two-le
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Références bibliographiquesRefere
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Références bibliographiques[39] A
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Photo Credits:ANDRA - SKB - NAGRA -
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Tome Architecture and management of a geological repository - Andra

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