Nuclear Waste and Caves
What are the benefits of storing nuclear waste in
subterranean salt mining caves?
The main advantage is that since the salt has been in its deposit for
millions of years, there could not have been groundwater flowing through the
deposit for at least that long. If there had been, it would have carried
the salt away. So, if nuclear waste is placed inside the salt bed, chances
are good that groundwater won't carry it anywhere else. The nuclear waste
will decay away to nonradioactive elements before it leaves the salt
Richard E. Barrans Jr., Ph.D.
PG Research Foundation, Darien, Illinois
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Update: June 2012