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A comment on Japan’s plan to dump nuclear waste into the pacific ocean may not be safe. Parent comment

Re:Japan’s plan to dump nuclear waste into the pacific ocean... by pera on Thursday April 28, 2022 @08:39AM (#31191752)
Tritium is not the only radioactive isotope present though:

https://www.greenpeace.org/static/planet4-japan-stateless/20...

https://www.theguardian.com/world/2020/oct/23/fukushima-reac...

> In addition to high levels of hazardous radionuclides such as strontium-90, TEPCO on 27 August 2020 acknowledged for the first time the presence of high levels of carbon-14 in the contaminated tank water

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Re:Japan’s plan to dump nuclear waste into the pacific ocean... by Reason077 on Thursday April 28, 2022 @09:09AM (#31192003)
The idea is that the strontium-90, carbon-14, etc can be filtered out, leaving just the tritiated water to be discharged.
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Re:Japan’s plan to dump nuclear waste into the pacific ocean... by pera on Thursday April 28, 2022 @09:17AM (#31192091)
According to the article I cited:

> Greenpeace said it had confirmed with Tepco that the system was not designed to remove carbon-14

Maybe there are updates on this matter but I couldn't find anything online.

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Re:Japan’s plan to dump nuclear waste into the pacific ocean... by Reason077 on Thursday April 28, 2022 @09:21AM (#31192125)
Sounds like you're right about the carbon-14:

"C-14 also cannot be removed by ALPS, but its concentration is far lower than its regulatory standard for discharge."

Source: https://www.meti.go.jp/english/earthquake/nuclear/decommissi...

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Re:Japan’s plan to dump nuclear waste into the pacific ocean... by tablespoon on Thursday April 28, 2022 @12:50PM (#31194868)
Is the carbon-14 an actual health concern, or just a PITA for future archeologists?
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Re:Japan’s plan to dump nuclear waste into the pacific ocean... by gus_massa on Thursday April 28, 2022 @03:09PM (#31196869)
Nitpicking: The archeologist already have tables to fix variations of the C_14 vs C_12 in the past https://en.wikipedia.org/wiki/Radiocarbon_calibration
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Re:Japan’s plan to dump nuclear waste into the pacific ocean... by xyzzy21 on Thursday April 28, 2022 @02:29PM (#31196313)
Except if you consider the "entropy" of doing that, you have an enormous amount of energy inputs required.
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