The team responsible for decommissioning research reactor DR 3 must not only focus on dismantling the reactor block itself but also manage all elements that were part of the experiments. In this context, a pool plays a crucial role.

The nearly three-meter-wide metal ring, which was located around the top of the DR3 reactor tank, has been successfully lifted out. Similar to the lift performed earlier this year, today's operation was executed with high professional expertise from the Dutch company Mammoet and custom-fabricated equipment from the Aalborg-based company Bladt Industries.

Concrete dust, grinding machines, and full-body suits. Much of the time, decommissioning resembles a rather ordinary, yet intensive, renovation. The powder room, where Risø processed uranium for fuel rods, has been thoroughly ground down on all surfaces.

In May 2014, Danish Decommissioning carried out a major operation: lifting the 22-ton heavy metal plug from Denmark's largest research reactor DR3. The actual lifting of the plug took one hour, and the operation can be viewed in timelapse here.

Success: The massive metal plug that sealed Denmark's largest research reactor DR3 has been successfully removed and replaced with a lid. Due to intense radiation from the reactor tank, this historic operation has been meticulously planned over recent years. DD commends the collaboration with Mammoet and Bladt Industries.

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