First cut out of reactor pond wall
Removal of the Dounreay Fast Reactor (DFR) pond wall is underway.
皇冠体育app first block of concrete has been removed from the structure of 1 of Dounreay鈥檚 cooling ponds 鈥� representing a major first step in demolishing the redundant giant chamber.
皇冠体育app pond is 1 of 2 concrete pits, 6 metres deep, which was used to store spent fuel from the DFR. When in operation they resembled deep swimming pools, containing around 500m鲁 of water, providing shielding for workers from radiation emitted from spent fuel. 皇冠体育appy have now been drained of water and sludge, while redundant equipment has been removed.
皇冠体育appre are around 180 blocks of concrete, individually weighing around 1 tonne, to be removed from each pond and packaged as waste.
Suzanne Griffiths, Project Manager, said:
鈥淒ecommissioning of the ponds is technically challenging. While each block is only around 1m虏, it is extremely heavy and the process of cutting it is complex. 皇冠体育app team has worked exceptionally well together and applied lateral thinking, deploying new techniques to allow the concrete liner to be removed in preparation for final demolition.鈥�
DFR is 1 of the highest hazards in the Nuclear Decommissioning Authority鈥檚 estate and the safe removal of associated plants and facilities is crucial to getting Dounreay to its interim end state.