Geological storage of radioactive waste is a common practice, but
concerns about long-term safety remain. There is a need for standardised
protocols and overall safety improvement in the use of plugs and seals
for geological storage.
'Full scale demonstration of plugs and seals' (DOPAS
is an EU-funded project that is addressing this by running five
full-scale plug and seal experiments in different storage facilities
around Europe. They hope that the knowledge gathered from these
experiments will improve standard practice in the industry.
Before the experiments were started, DOPAS spent some time defining
the concept and design for each experiment. This process was recorded
and compiled into a design report, which has been completed.
Two experiments have been started in France and Sweden, and are
being monitored constantly. The other three experiments are at different
preparation stages: one is at the design phase, and the other two are
in the site preparation phase.
DOPAS will now focus on getting the last three experiments up and
running. The final outcome of the project will be several reports on the
design, construction and implementation of plug and seal technologies