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5B15
- Compacted LLW
Waste from analytical laboratories, reactor and reprocessing plant.
Nuclear Restoration Services Ltd (NRS) | Dounreay | LLW
5B16
- Bulk Operational LLW
Large items of waste from reactor and reprocessing operations and support facilities.
Nuclear Restoration Services Ltd (NRS) | Dounreay | LLW
5B19
- Uranium Contaminated Materials
Stored wastes are mainly concrete from floor of building, from refurbishment exercise and additional materials such as uranium slag materials from uranium processing. There are also two drums containing natural uranium and six drums containing depleted uranium metal.
Nuclear Restoration Services Ltd (NRS) | Dounreay | ILW
5B20
- Contaminated Solvent and Oils
Fuel reprocessing and miscellaneous types of oils/solvents from machinery and experiments plus mercury from reactor gas blankets seals.
Nuclear Restoration Services Ltd (NRS) | Dounreay | LLW
5B22
- ADU Floc
The floc results from the decontamination of high alpha MA/LA liquors from the PFR fuel reprocessing plant.
Nuclear Restoration Services Ltd (NRS) | Dounreay | ILW
5B24
- Operational CHILW
Reprocessing support, analytical and waste facilities and development work. Wastes from POCO may also be included.
Nuclear Restoration Services Ltd (NRS) | Dounreay | ILW
5B25
- ILW Shaft (Contents)
Miscellaneous waste disposals from all operations at Dounreay from 1959 to 1977, mainly from early reprocessing operations and supporting operations i.e. PIE etc. Additionally, there is waste from other sites notably HMS Vulcan and Harwell. Post 1971, some "special" waste was disposed of to the Shaft; this included large items and a number of breeder and dummy breeder elements.
Nuclear Restoration Services Ltd (NRS) | Dounreay | ILW
5B26
- LLLETP Sludge
This waste stream consists of sludges which will be produced as a result of operations in the Low Level Liquid Effluent Treatment Plant (LLLETP) at Dounreay. The sludges themselves will consist of a mixture of ferric and aluminium hydroxides.
Nuclear Restoration Services Ltd (NRS) | Dounreay | LLW
5B27-1
- Thorium Nitrate (500L Drums)
Recovery of thorium from THTR spheres by crushing and rolling the spheres, followed by density based air-separation of graphite from fuel, which could then be disposed of separately. Fuel particles were dissolved in HNO3/NH4F solution, then separated by solvent extraction in mixer-settler boxes. The thorium nitrate was evaporated to concentration of around 400 g/l, then allowed to cool and settle.
Nuclear Restoration Services Ltd (NRS) | Dounreay | ILW
5B27-2
- Thorium Nitrate (6m3 Box)
Recovery of thorium from THTR spheres by crushing and rolling the spheres, followed by density based air-separation of graphite from fuel, which could then be disposed of separately. Fuel particles were dissolved in HNO3/NH4F solution, then separated by solvent extraction in mixer-settler boxes. The thorium nitrate was evaporated to concentration of around 400 g/l, then allowed to cool and settle.
Nuclear Restoration Services Ltd (NRS) | Dounreay | ILW