system
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human
Could electrolysis be used in a matter to purify water of radiation?

I have been playing a little too much fallout at 2am I will admit. But I got wondering during fallout3 on their project to purify water.

 Using electrolysis, splitting the hydrogen and oxygen and then having them reform in a separate container. Would it treat the water of radiation and other impurities as well?
gpt
I think this is like building a death ray to kill an ant; there are filters that can remove radiation from water. If water is contaminated, then the ionizing particles are dissolved in it (like strontium-90, radium-226 etc.). A proper filter should remove these particles through reverse osmosis. Adding procedures such as activated carbon or ion exchange would possibly even remove gaseous contaminants like Iodine-131.

What you are describing sounds like combustion; burning hydrogen and oxygen gases creates water.

2H₂(g) + O₂(g) → 2H₂O(g) + energy

You would then need to condense it to get liquid water, and it should be free of radioactive contaminants.