ROV AREVA v2 sediment pumping ROV

Objectives

Subsea Tech designed and manufactured a ROV dedicated to recover radioactive sediments stored in the tanks of the AREVA plant of La Hague. The vehicle works 1,5m under the water and is fitted with a powerful pump and a decompacting system, A ballast system allows accurate control of the vehicle depth and of the vehicle pressure on the sediments during the recovery phase. Main features are as follow :

• Use of suitable materials for extreme radioactive and physico-chemical conditions
• Remote surface control unit integrating all sensitive electronics such as motor controllers
• Great compactness to address the confinement requirement and narrow access conditions
• High reliability and design optimization in regards to the maitnenance and decontamination requirements

This designed concept can easily be adaptated to other issue such as :

• Depollution  of underwater areas (harbour areas, aquaculture farms, etc.
• Dredging operations in dam reservoirs, ponds, etc.
• Industrial waste recovery (chemical plants, mines, etc.)