Nuclear waste storage container may not be as stable

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Discussion Overview

The discussion revolves around the stability and longevity of ceramic materials used for storing nuclear waste, particularly in light of radiation damage. Participants explore the implications of this material's deterioration over time and the potential need for alternative waste management strategies, including reprocessing and the use of breeder reactors.

Discussion Character

  • Debate/contested
  • Technical explanation
  • Exploratory

Main Points Raised

  • Some participants express concern about the stability of ceramic materials used for nuclear waste storage, noting that radiation damage may occur faster than previously thought.
  • One participant mentions that the Nature article indicates the container deteriorates after 1,400 years, but argues that the radioactivity of the waste becomes less than that of the original ore within 600 years.
  • Another participant counters that while the waste may have reduced radioactivity over time, it is still concentrated in one location, unlike dispersed ore.
  • There is a suggestion that reprocessing and recycling of actinides could mitigate concerns about waste volume and radioactivity over time.
  • Participants discuss the volume of accumulated nuclear waste in the USA, suggesting that it could fit in a space comparable to a high school gym if reprocessed.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the implications of the ceramic material's stability or the effectiveness of proposed solutions such as reprocessing. Multiple competing views remain regarding the risks associated with nuclear waste storage and management strategies.

Contextual Notes

Participants highlight various assumptions regarding the timeframes of radioactivity and the concentration of waste versus ore, which may influence their arguments. The discussion reflects differing perspectives on the adequacy of current storage solutions and the potential for future technologies.

ZapperZ
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This is not a very comforting new. It appears that one of the ceramic material used for storing nuclear wastes http://www.nature.com/news/2007/070108/full/070108-6.html" than first thought. The damage done by the emitted radiation, especially from alpha and its collision byproducts, are damaging the material faster.

I've always believed that this storage solution should only be a stop-gap measure while we continue to find better ways to deal with this. Until they consider reprocessing and using breeder reactors, we may not have any good solution to this problem until a completely different technology to generate power arrives.

Zz.

Edit: Nature's website is VERY flaky this morning. If you can't get the link, try again later.
 
Last edited by a moderator:
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ZapperZ said:
This is not a very comforting new. It appears that one of the ceramic material used for storing nuclear wastes http://www.nature.com/news/2007/070108/full/070108-6.html" than first thought. The damage done by the emitted radiation, especially from alpha and its collision byproducts, are damaging the material faster.

I've always believed that this storage solution should only be a stop-gap measure while we continue to find better ways to deal with this. Until they consider reprocessing and using breeder reactors, we may not have any good solution to this problem until a completely different technology to generate power arrives.
Zapper,

The Nature article states that the container deteriorates after 1,400 years.

What Nature doesn't tell you is that in less than 600 years, the radioactivity of the
nuclear waste is LESS than the ore that was dug out of the ground.

No problem - even if the container deteriorates after 1,400 years; that's over 800 years
after the waste isn't a problem, if one uses reprocessing / recycling of actinides.

Dr. Gregory Greenman
Physicist
 
Last edited by a moderator:
Morbius said:
Zapper,

The Nature article states that the container deteriorates after 1,400 years.

What Nature doesn't tell you is that in less than 600 years, the radioactivity of the
nuclear waste is LESS than the ore that was dug out of the ground.

No problem - even if the container deteriorates after 1,400 years; that's over 800 years
after the waste isn't a problem, if one uses reprocessing / recycling of actinides.

Dr. Gregory Greenman
Physicist

But the ore are not in a concentrated form - they are dispersed. Here, the waste are all sitting in one location.

Zz.
 
ZapperZ said:
But the ore are not in a concentrated form - they are dispersed. Here, the waste are all sitting in one location.
Zapper,

But the waste at that time has so little radioactivity - it's not a problem.

Besides, ALL the waste that the USA has accumulated in nearly 1/2 century of
operation of nuclear power plants will fit in a volume the size of a high school gym.

If we reprocess / recycle, as I alluded to before - reduce that volume by a factor of 25
or more.

At the end of 600 years - there's not enough radioactivity to be concerned with.

Dr. Gregory Greenman
Physicist
 
Last edited:

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