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Nuclear reprocessing
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==== Advantages ==== * The process is simple and requires no complex machinery or chemicals above and beyond that required in all reprocessing ([[hot cell]]s, [[remote handling]] equipment) * Products such as [[krypton-85]] or tritium, as well as [[xenon]] (whose isotope are either stable, [[Xenon-136|very nearly stable]], or quickly decay), can be recovered and sold for use in industry, science or medicine * Driving off volatile fission products allows for safer storage in interim storage or [[deep geological repository]] * [[Nuclear proliferation]] risks are low as no separation of plutonium occurs * Radioactive material is not chemically mobilized beyond what should be accounted for in long-term storage anyway. Substances that are inert as native elements or oxides remain so * The product can be used as fuel in a [[CANDU]] reactor or even downblended with similarly treated spent CANDU fuel if too much fissile material is left in the spent fuel. * The resulting product can be further processed by any of the other processes mentioned above and below. Removal of volatile fission products means that transportation becomes slightly easier compared to spent fuel with damaged or removed cladding * All volatile products of concern (while helium will be present in the spent fuel, there won't be any radioactive [[isotopes of helium]]) can in principle be recovered in a [[cold trap]] cooled by [[liquid nitrogen]] (temperature: {{convert|77|K}} or lower). However, this requires significant amounts of cooling to counteract the effect of decay heat from radioactive volatiles like krypton-85. Tritium will be present in the form of [[tritiated water]], which is a solid at the temperature of liquid nitrogen. * [[Technetium heptoxide]] can be removed as a gas by heating above its boiling point of {{convert|583.8|K}} which reduces the issues presented by technetium contamination in processes like fluoride volatility or PUREX; [[ruthenium tetroxide]] (gaseous above {{convert|129.6|K}}) can likewise be removed from the spent fuel and recovered for sale or disposal
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