Solid Radioactive Waste Strategy Report.pdf - UK EPR

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EPR UK N° NESH-G/2008/en/0123 REV. A PAGE 10 / 257 Term Probability Radioactive Waste Radionuclide Raw Waste Redundant Reprocessing Retrieve Secondary Waste Segregated Seismic Event Site Footprint Spent Fuel Supercompaction Swarf Tritium Very Low Level Waste Waste Explanation The ratio of the number times the event is predicted to occur out of the total number of possible outcomes. Solid, liquid, and gaseous materials from nuclear operations that are radioactive or become radioactive (contaminated) and for which there is no further use. They will require appropriate management such as effective treatment to make safe and may require disposal. An unstable nuclide that emits ionising radiation. Waste that has not undergone any treatment or processing. A part or operation that does not serve any purpose at this point in time but is a means to maintain safety and operability over time. The extraction and separation of usable materials and waste from spent nuclear fuel. The act of removal of material from its existing location, such as the retrieval of fuel from within the reactor core or the retrieval of radioactive waste from a long– term storage facility. Waste that arises as a by-product from the treatment of waste from the nuclear facility. Waste that has been removed as a waste stream and organised into groups that are defined either by size, activity, usability or origin. The abrupt release of energy in the earth's crust causing an earth vibration or earthquake. The totality of ground area occupied by the nuclear facility including the nuclear and conventional islands. Fuel that has been used within the nuclear reactor to an extent that it can no longer sustain a chain reaction. It is, however, still radioactive and will require appropriate treatment and disposal. The compaction of a material with a very high force of up to 2000 te. Metal turnings and scrap, usually from the separation of spent nuclear fuel, from the canning and cladding material prior to reprocessing. A radioactive isotope of hydrogen (one proton, two neutrons). Because it is chemically identical to natural hydrogen, tritium can easily be taken into the body by any ingestion path. It decays by beta emission and has a radioactive half-life of about 12.3 years. A sub-category of Low Level Waste that is excluded from the requirement for regulatory control appropriate to radioactive wastes, as the radiological hazards are judged to be sufficiently low. The regulatory controls relevant to controlled wastes do apply to this form of waste. A material that has no further useful commercial, industrial or manufacturing purpose and is either discarded, planned to be discarded or required to be discarded.
EPR UK N° NESH-G/2008/en/0123 REV. A PAGE 11 / 257 Term Waste Hierarchy Waste Streams White Paper Explanation A principle of categorisation for the sentencing of wastes. The hierarchy includes the following waste sentencing principles, in order of most desirable first, prevent, re-use, recycle, recover, dispose. Groupings of wastes based on common waste origin, character or waste management route. Theses are issued by the UK government and lay out the policy or intentions of the UK government on a particular issue.
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