[pera]

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

[Reason077]

The idea is that the strontium-90, carbon-14, etc can be filtered out, leaving just the tritiated water to be discharged.

[pera]

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.

[Reason077]

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...

[tablespoon]

Is the carbon-14 an actual health concern, or just a PITA for future archeologists?

[gus_massa]

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

[xyzzy21]

Except if you consider the "entropy" of doing that, you have an enormous amount of energy inputs required.