salve a tutti,

premetto che non ho particolari pregiudizi sul nucleare. Sono qui perche mi interessa approfondire il tema gestione del post-accident di Fukushima.

sul piano di decontaminazione dell'acqua ho trovato questo interessante articolo di aggiornamento del 07.06.2011 su Nature News (Nature, rivista scientifica piuttosto autorevole)

http://www.nature.com/news/2011/110607/f...4135a.html

da cui mi permetto di estrarre due paragrafi x un eventuale discussione:

"Residual nuclear decay in the three reactors — which all suffered total meltdowns — means that they will need cooling for many months to come. "

l'opinione di Jack DeVine, "a retired nuclear consultant who led water-decontamination efforts after the 1979 Three Mile Island nuclear meltdown in Pennsylvania.": "Basements filled with radioactive water also put workers on the site at risk. "It makes even small things nightmarish to do," he says.

alcuni dettagli sui filtri di decontaminazione dell'acqua:

"The water will pass through Kurion's filters, which contain a zeolite mineral — an extremely porous aluminosilicate that loosely binds metal ions. Through a combination of adsorption and ion exchange, the filters will trap the radio­active elements strontium-90, caesium-134 and caesium-137, reducing their concentration in the water by a thousand times."

ma...

"This time the water is full of salt," he says (Kenji Takeshita, a specialist in water treatment at the Tokyo Institute of Technology).
" The chemical similarity between sodium and caesium ions may make the zeolite extraction process far less efficient, he says."

ciao!
JET