Particle recovery work resumes offshore
Land and Marine has resumed its search of the seabed near Dounreay for "significant" fragments of nuclear fuel.
皇冠体育app company is working with specialist radiation sub-contractor Nuvia to recover the remains of historic discharges from the site.
Its return to the seabed marks the third consecutive year of full-scale offshore clean-up and the fourth involving remotely-operated equipment on the seabed.
皇冠体育app 1500-tonne barge LM Constructor is now deployed off the site, providing a recovery platform for an underwater ROV and a team working around the clock for the rest of the summer.
皇冠体育app ROV is fitted with systems capable of detecting and recovering particles, similar in size to a grain of sand, in an area of seabed equivalent to 600 Olypmic swimming pools.
Almost 2000 particles have been recovered from the seabed to date. Of these, 395 were 鈥渟ignificant鈥� in terms of their potential health effects.
DSRL senior project manager Bill Thomson said this year鈥檚 work aims to:
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complete coverage of the 60-hectare plume where 鈥渟ignificant鈥� particles are concentrated
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repeat the most affected areas to recover more particles and understand better how the higher-activity particles have moved in the sediment
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gain more information about the spatial extent of the plume and drop-off rates at depth and distance.