Drums of radioactive sludge from Sellafield’s Pile Fuel Storage Pond (PFSP) – the world’s oldest nuclear storage pond – have been processed in the site’s encapsulation plant for the first time. The waste is now ready for long-term disposal. Sellafield Limited announced the “momentous move” on 14 February. The first 500-litre drum of sludge had been transferred from the pond to the encapsulation plant in December 2016. Cement was then added to the drum, which was mixed with the sludge using a stirrer “much like a big food mixer”. Once the mixture had cured, a cement cap was added and the drum was sealed with a lid. The first drum was then transferred remotely to a storage facility where it will be kept until the planned national geological disposal facility is available.
World Nuclear News 20th Feb 2017 read more »