Latest News

Filters

Filter by tags: Dounreay Clear all tag filters

37 news articles found


The UK's Nuclear Decommissioning Authority (NDA) has launched a public consultation on its Draft Strategy, Cleaning up the UK's earliest nuclear sites, caring for people and the environment. Its strategy is a requirement of the Energy Act, covers 100+ years, is published every five years and includes a public consultation period of 12 weeks. The latest consultation ends on 8 November.

Date: Saturday, 22 August 2020
Original article: world-nuclear-news.org/Articles/UK-invites-comment-on-decommissioning-strategy

The UK Ministry of Defence has invited firms to tender for work to decontaminate and dismantle the Vulcan Naval Reactor Test Establishment (NRTE) - formerly HMS Vulcan - which houses prototype nuclear propulsion plants of the type operated by the Royal Navy.

Date: Friday, 20 March 2020
Original article: neimagazine.com/news/newstenders-invited-for-work-to-dismantle-uk-naval-test-reactor-site-7830438

The UK has a total of 4,560,000 cubic metres of radioactive waste, according to the 2019 United Kingdom Radioactive Waste & Materials Inventory, published on 10 January.

Date: Tuesday, 21 January 2020
Original article: neimagazine.com/news/newsuk-updates-radioactive-waste-inventory-7609572

The UK's Committee on Radioactive Waste Management (CoRWM) has published a document setting out the broad framework within which it will operate. The framework replaces its terms of reference.

Date: Tuesday, 14 January 2020
Original article: world-nuclear-news.org/Articles/UK-develops-role-of-Committee-on-Radioactive-Waste

While the UK nuclear industry met the required safety and security standards last year, there remains room for improvement, the country's Chief Nuclear Inspector Mark Foy said today in his first annual report on the sector's performance. He said three key areas of focus are the management of ageing facilities, conventional health and safety, and delivering a holistic approach to nuclear security.

Date: Saturday, 12 October 2019
Original article: world-nuclear-news.org/Articles/UK-chief-nuclear-inspector-issues-performance-repo

Half of the last remaining radioactive fuel elements inside the Dounreay Fast Reactor (DFR) have now been removed, Dounreay Site Restoration Ltd (DSRL) has announced. The elements had been jammed inside the reactor, and their removal has been a top priority for its decommissioning.

 

DFR, at Dounreay in northern Scotland, achieved criticality in November 1959 and in October 1962 became the world's first fast reactor to supply electricity to the grid. Developed at a time of uranium shortage, the reactor's core was surrounded by a blanket of natural uranium elements that, when exposed to radiation, would "breed" to create a new fuel, plutonium. The reactor, which was cooled by a liquid sodium-potassium alloy, achieved a maximum electrical power of 14.5 MWe and was shut down in 1977.

Most of the core fuel was removed from the reactor after its closure, but almost 1000 elements from the breeder zone were found to be swollen and jammed, and were left in place.

Recovery of the jammed elements, using purpose-built remotely-operated tools that reached down into the reactor to cut the breeder elements free and lift them into a flask for removal to the next stage of the process, began in 2017. Locally manufactured tooling has played a big part in the successful removal of half the remaining radioactive fuel inventory inside the reactor vessel, DSRL said. Local companies who manufactured mechanical equipment included JGC Engineering and Technical, Precision Machining Services, and Calder Engineering. Contec Design Services carried out electrical, control and instrumentation works.

Decommissioning the 60-year-old DFR is one of the most technically challenging projects in the UK Nuclear Decommissioning Authority's (NDA's) estate, DSRL said.

DSRL is the site licence company responsible for the clean-up and demolition of the former centre of fast reactor research and development. It is a wholly-owned subsidiary of the Cavendish Dounreay Partnership, a consortium of Cavendish Nuclear, Jacobs and AECOM, and is funded by NDA to deliver the site closure programme.

Researched and written by World Nuclear News

Date: Saturday, 12 October 2019
Original article: world-nuclear-news.org/Articles/Half-way-point-reached-in-Dounreay-reactor-fuel-re
UK-based Cavendish Nuclear has been awarded a contract by Japan Atomic Energy Agency to support decommissioning of the Monju prototype fast breeder reactor.

Cavendish said the contract builds on its experience of decommissioning fast reactors in the UK. The company will use the skills and experience gained during the decommissioning of the fast reactors at Dounreay, which are at an advanced stage of cleanout and dismantling.

The main elements of the contract with JAEA involve technical support for creating a lifetime plan for the decommissioning of Monju and a feasibility study into the treatment of sodium coolant from the Monju site.

Date: Friday, 30 August 2019
Original article: nucnet.org/news/uk-s-cavendish-wins-japan-fbr-decommissioning-contract-8-4-2019

British nuclear services company Cavendish Nuclear has been awarded a contract by Japan Atomic Energy Agency (JAEA) to support decommissioning of the Monju prototype fast breeder reactor. Cavendish, a subsidiary of Babcock International Group, has been involved in the ongoing decommissioning of the fast reactors at the UK's Dounreay site.

Date: Thursday, 29 August 2019
Original article: world-nuclear-news.org/Articles/Cavendish-to-assist-in-decommissioning-Monju

British nuclear services company Cavendish Nuclear has been awarded a contract by Japan Atomic Energy Agency (JAEA) to support decommissioning of the Monju prototype fast breeder reactor. Cavendish, a subsidiary of Babcock International Group, has been involved in the ongoing decommissioning of the fast reactors at the UK's Dounreay site.

Date: Wednesday, 28 August 2019
Original article: world-nuclear-news.org/Articles/Cavendish-to-assist-in-decommissioning-Monju

The UK Nuclear Decommissioning Authority (NDA) and US Department of Energy’s National Nuclear Security Administration (NNSA) have completed the transfer of around 700kg of highly enriched uranium (HEU) from Dounreay, in northern Scotland, to the USA.

Date: Wednesday, 08 May 2019
Original article: neimagazine.com/news/newsheu-removed-from-dounreay-to-usa-7195680