Such storage reduces the radioactivity by about a factor of 1000. The general rule-of-thumb is that a waste stored for 10 times the half-life of the primary radionuclide is no longer a radioactive waste. Radioactive wastes are stored to (1) allow some radioactive wastes to decay to nonradioactive wastes, (2) reduce transport risks (3) provide lag storage between waste generator, treatment, and disposal sites (4) simplify disposal and (5) manage radioactive wastes until disposal facilities become available.įor radioactive wastes containing only radionuclides with half-lives measured in days or weeks, such as some medical and research isotopes, storage for weeks or months eliminates the radioactivity and converts the radioactive waste into a nonradioactive waste.
Forsberg, in Encyclopedia of Physical Science and Technology (Third Edition), 2003 III.B Storage
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