[Enthalpy]

Hello you all!

You know people at the (the remnants of) Fukushima Dai-ichi power plant lack storage capacity for radioactive water. The present intent is to release 11,000m³ of lightly radioactive water into the Pacific to make room to store more radioactive water.

If you know a way to remove the contaminants before releasing the water, the right time to tell it is now. Under "a way", we shall probably understand: doable within one or two days without bringing heavy hardware from a distant location.

In addition to uranium and plutonium oxides - supposedly a fine powder in that water - I expect radioisotopes of iodine, caesium, strontium plus a complete cocktail.

A resin ion exchanger is unrealistic for such amounts and delays, right?

Could maybe the three mentioned elements, which are the most deleterious, be precipitated from water?
Other ideas?

Thank you!

[Enthalpy]

Could for instance something like a crown ether, or an amine analogue, bind selectively with caesium or with strontium?