Three of the UK’s Magnox sites have achieved major milestones in their ponds decommissioning programme. Work has been carried out in a challenging radioactive environment to remove empty skips, sludge and other debris before draining off the water. The entire ponds cleanup programme across the ten UK Magnox reactor sites is expected to cost around £300 million. Because of their variety the cleanup process for Magnox fuel ponds is a far cry from ‘one size fits all’, but the common understanding and toolkits developed through the Magnox ponds programme have helped to build a bank of knowledge to share across the fleet. Simple innovative processes and shared learning mean the expected cost is £45 million less than the original estimate. Most recently, Dungeness A, Oldbury and Sizewell A have all completed comprehensive programmes to drain and clean their ponds, deploying a variety of techniques. Some were conventional; some were original and innovative. Each three-year programme cost more than £20 million. Together, their achievements are a milestone in the Nuclear Decommissioning Authority group’s corporate targets.
Nuclear Engineering International 18th June 2020 read more »
Jacobs has been selected by Radioactive Waste Management Ltd (RWM), a subsidiary of the UK government’s Nuclear Decommissioning Authority, to study the release of radioactivity from irradiated graphite sampled from reactor cores at the UK’s nuclear power stations. This research will support RWM in its analysis of graphite behaviour and the options for graphite waste management in the future. “We are combining our leading graphite knowledge from our Integrated Waste Management team at Harwell, our role as designer and architect engineer of the advanced gas-cooled reactor (AGR) and Magnox reactors and our work on operational support and life extension,” said Clive White, Critical Mission Solutions Senior Vice President, Jacobs. “Our Technology and Innovation Centre at Birchwood Park, Warrington, is applying this graphite knowledge to work through options for safe and timely characterisation, retrieval, treatment and storage solutions to meet the growing global decommissioning market.”
BINDT 19th June 2020 read more »