Solid Radioactive Waste Strategy Report.pdf - UK EPR

EPR UK
N° NESH-G/2008/en/0123
REV. A PAGE 78 / 257
This container can be manufactured from metals contaminated with low levels of activity,
allowing recycling of metals which would otherwise have to be disposed of as radioactive waste.
The cask outer dimensions of 1500 mm height, and 1060 mm diameter are fixed but the internal
and lid configurations can be adapted to the needs of different waste streams. Typical empty
weights can be between 4000 kg and 9400 kg providing volumes between 135 l and 680 l. (This
description is based on the MOSAIK Type II container which has been subject to the concept
stage LoC NDA assessment.)
A key advantage of the use of this container is the accessibility of the container during
processing, handling and storage due to the shielding provided. This permits the use of mobile,
modular conditioning systems.
7.4.3.4 ILW Package Volumes
FIGURE 21: MOSAIK CAST IRON CONTAINER
The AREVA waste packaging technology, including the use of cast iron containers, differs from
the procedures generally adopted with the UK nuclear industry. Table 16 and Figure 22
compares some aspects of the two approaches and shows that the AREVA concept could
expect to produce a much lower volume of waste. The AREVA concept design technology will
be further developed and will be assessed by UK regulatory authorities. If the design meets the
requirements of these regulators (in terms of safety and environmental performance) then the
packaging technology will be proposed for the UK EPR waste treatment facilities.