Yes. There is enough bentonite clay available to meet the needs of the Adaptive Phased Management (APM) deep geological repository, as well as other used fuel repositories being planned around the world.
Bentonite clay is one of the barriers within the deep geological repository that will isolate used fuel from humans and the environment in the long term. It is a natural material that swells when exposed to water, making it an excellent sealing material. It is also very stable, as seen in natural formations formed millions to hundreds of millions of years ago.
Bentonite clay is available in many countries around the world.
It is estimated that the APM deep geological repository would consume one to two per cent of the annual capacity in North America.
Worldwide, deep geological repositories that are planned or expected will only consume about five to six per cent of the global bentonite supply.
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