Dec 15 A chunk of DR 3's concrete removed
Two days before shutting down the company, a milestone was reached in the decommissioning of Danish Reactor 3: the first concrete blocks have been sawn out of the top of the reactor and placed in containers.
Two days before shutting down the company, a milestone was reached in the decommissioning of Danish Reactor 3: the first concrete blocks have been sawn out of the top of the reactor and placed in containers.
For the past 60 years, a basin has been used to store radioactive objects from Danish Reactor 3. Now the last contaminated tubes have been removed from the basin.
The waste treatment plant is the sixth and last of Risø's original nuclear plant to be decommissioned. Funds have now been allocated to start work.
The top of Danish Reactor 3 is now naked and exposed, ready to be cut up.
The initial cleaning has removed 85 percent of the radioactivity in the Hot Cell plant. Watch a video about how the team last removed hotspots in one of the cells.
Around the innermost tank of Danish Reactor 3 has sat a graphite reference that shot back the neutrons. The reflector and an associated layer of lead are now gone. This completes the remotely operated cutting of the internal parts of the reactor.
One of the DD 's task is to provide a better overview of the radioactive waste that was stored on Risø prior to our creation in 2003. With the emptying of the so-called Old Grube, we have made a good step forward.
The Dutch company Mammoet has again visited the DD to help with a heavyweight lift. This time, the large container with the shielding ring from the DR 3 reactor had to be refilled.
The mechanical arms that clean the heavily contaminated Hot Cells for radioactivity have had an involuntary break. The fourth cell to be cleaned was found to contain large amounts of fine hoverdust that almost stick to the filter.
For the past year, a team of DD employees has been working to remove the aluminium tank that sat inside Danish Reactor 3. The tank has now been turned into small pieces and placed in shielded containers.