Solid Radioactive Waste Strategy Report.pdf - UK EPR

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EPR UK N° NESH-G/2008/en/0123 REV. A PAGE 190 / 257 FIGURE 71: 3M 3 BOX – MID SIDE LIFTING VARIANT Drum with flat cover Flat cover in position Curved head cover Angle ring cover FIGURE 72: 200 LITRE DRUM FIGURE 73: 4M 3 BOX The sectioned concrete slabs contain individually plugged openings (e.g. for inspections). The following picture shows the openings and plugs for the loading and unloading of drums.
EPR UK N° NESH-G/2008/en/0123 REV. A PAGE 191 / 257 FIGURE 74: EXAMPLE OF INSERTION OPENINGS IN A STORAGE FACILITY The storage concrete compartments will be of different sizes but can be subdivided into sections to accommodate different packages. Thus the storage compartments can be loaded with different waste package geometries and stacking characteristics. The compartments are designed so that additional stacking aids can be installed if the packaging requires additional support. The compartments are individually connected to an active ventilation system. The active ventilation system connects the compartments and routes the exhaust air to the ventilation/air conditioning system. Due to the expected life span of 100 years the ventilation ducts could be integrated in the concrete structure. Whilst the active ventilation is primarily used during the loading/unloading (and infrequent inspection procedures) all compartments that are not actively operated are left in a passive state. During this passive stage the compartment remains fully enclosed and access of air that can result in changes of humidity within the compartment will be minimised though the closure of all openings.
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A 2008-11-26 Sarah Greenwood Gary C
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Solid Radioactive Waste Strategy Report.pdf - UK EPR

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