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under development in some countries. LILW is waste for which the heat generated is
negligible and does not need to be taken into account during treatment and disposal.
HLW is waste for which heat generation is significant and must be considered in all
the management steps. The concentration of long-lived alpha-emitting radionuclides
determines whether the LILW is classed as SL or LL. Additionally, radioactive waste
includes
spent fuel, although in some countries it is not considered a waste stream and
is routinely reprocessed (or stored for future use) in order to recycle the uranium and
plutonium (as fresh fuel) and to remove the fission product, which is vitrified and
constitutes the HLW stream. The indicator described by this methodology sheet in
fact
represents a set of indicators, since each type of radioactive waste needs to be
assessed separately.
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