Past exam of the MPhil in nuclear energy course of the University of Cambridge / 2021 / Module NE4 / 4 / a / Solution 2026-10-20
View more
A useful three-product account is a demonstrated site end state, recovered materials, and wastes requiring disposal or continuing management. It keeps the land outcome distinct from the material streams.
The first product is the land and any retained buildings in the specified nuclear decommissioning end state. Characterisation and final surveys must show that the remaining inventory is consistent with the intended reuse and any retained restrictions. Demolition is a possible means of reaching that state, not its definition. The associated records and final radiological evidence are part of the handover.
The second product is reusable or recyclable material and equipment. Segregation and, where appropriate, decontamination prevent clean bulk material from being unnecessarily mixed with contaminated material. Release from radiological control requires demonstrated radiological clearance; conventional chemical hazards still need their own management.
The third product is waste: both ordinary unrecoverable demolition debris and radioactive waste that remains under control. Activated structures, contaminated components and secondary cleaning wastes may require different treatment and packages. spent nuclear fuel, if still present, requires its own inventory and management route rather than being counted as ordinary scrap. Thus the material outputs can alternatively be tabulated as reusable material, conventional waste and radioactive waste, while the restored site is the overarching project deliverable. The source does not define a unique named three-product taxonomy.[ref]
Read the full article