The first block of concrete has been removed from the structure of one of Dounreay’s cooling ponds – representing a major first step in demolishing the redundant giant chamber. The pond is one of two concrete pits, six metres deep, which was used to store spent fuel from the Dounreay Fast Reactor (DFR). When in operation they resembled deep swimming pools, containing around 500m³ of water, providing shielding for workers from radiation emitted from spent fuel. They have now been drained of water and sludge, while redundant equipment has been removed. There are around 180 blocks of concrete, individually weighing around one tonne, to be removed from each pond and packaged as waste.
DSRL 16th Feb 2017 read more »