Search

Innovative dive project removing radioactive waste from Sizewell site

PUBLISHED: 09:27 02 February 2018 | UPDATED: 09:27 02 February 2018

One of the American divers working in the pond at Sizewell A. Picture: MAGNOX

One of the American divers working in the pond at Sizewell A. Picture: MAGNOX

Archant

Specialist scuba divers are working to remove radioactive waste from Sizewell A’s nuclear fuel storage pond using new techniques which will mean they receive lower radiation doses.

Specialist scuba divers will set to work removing radioactive waste from Sizewell A’s nuclear fuel storage pond. Picture: MAGNOX Specialist scuba divers will set to work removing radioactive waste from Sizewell A’s nuclear fuel storage pond. Picture: MAGNOX

The work to clear the ponds is likely to take 10 months with the divers tasked with cutting up the metal radioactive skips which once held the thousands of used nuclear fuel rods after they were discharged from the reactors.

After the last of the fuel was transported to Sellafield for reprocessing, the skips and a range of redundant items, including sludge, were left behind in the water.

Usually pond clean-outs are done using remotely-operated equipment to lift the skips clear of the water, exposing them to the air, where they are carefully cut up before decontamination, storage and eventual disposal. This process is slow with potential radiation dose risks for workers.

The team of American underwater experts, wearing full protective suits and shielded from radiation by the water, can cut up the skips more safely, access awkward areas more easily, making the whole process safer, faster and more productive.

Steve Franks, Sizewell A site ponds programme manager, said: “The scale of work to be delivered by the divers is huge. Although we only have one pond to decommission, the inventory of the ponds is larger than at Dungeness A but we will still be looking to speed up the work wherever it is safe to do so.”

The site is owned by the Nuclear Decommissioning Authority (NDA). Geoff Suitor, Head of the Magnox Programme for the NDA, said: “Magnox’s implementation of innovative approaches, such as the use of divers to handle radioactive waste in ponds, contributes to real progress in reducing risks and hazards at the Magnox sites.

“Together, we are successfully cleaning up and making safe the UK’s earliest nuclear sites on behalf of our communities and the environment.”

In addition to a reduction in the overall radiation dose for workers, compared with traditional methods, the diving technique has a lower environmental impact.

The first dive took place recently and focused on surveying the pond floor, transferring sludge into a purpose-built tank, setting up cutting equipment and cutting the first of 35 skips, which are classified as Intermediate Level radioactive waste.

During more than 250 dives at Dungeness A, a number of new ideas emerged including the use of lightweight plastic platforms for divers to stand on when exploring uncharted areas of the pond floor.

The team of 12 nuclear divers is supplied by US contractor Underwater Construction Corporation (UCC), which also carried out the Dungeness A project.

Other popular content

Yesterday, 11:35

A man who was missing for more than a week has been charged in connection with an incident of arson in Halesworth.

A jungle paradise hidden in the depths of East Anglia is set to play host to a wedding for the very first time.

11:19

Police are hunting a man who exposed himself to a dog walker.

Yesterday, 16:19

Police have confirmed that a woman who went missing and was the subject of an extensive search has been found.

Most Read

Yesterday, 11:35

A man who was missing for more than a week has been charged in connection with an incident of arson in Halesworth.

Read more

A jungle paradise hidden in the depths of East Anglia is set to play host to a wedding for the very first time.

Read more
United Kingdom
11:19

Police are hunting a man who exposed himself to a dog walker.

Read more
Suffolk Police
Yesterday, 16:19

Police have confirmed that a woman who went missing and was the subject of an extensive search has been found.

Read more
Suffolk Police

After opening her first shop only weeks before the start of the recession in 2007, a Bungay florist is celebrating the opening of a new shop in the town centre.

Read more
Norwich

Later in Life

cover

Click here to view
the Later in Life
supplement

View

Local Weather

Partly Cloudy

Partly Cloudy

max temp: 15°C

min temp: 11°C

Show Job Lists

Digital Edition

Image
Read the Beccles and Bungay Journal e-edition today
E-edition

Newsletter Sign Up

Beccles and Bungay Journal weekly newsletter
Sign up to receive our regular email newsletter

Our Privacy Policy