Abstract

With more than 10 US nuclear reactors sited on a coast, there is interest in being able to effectively remove radiological cesium from seawater in case of an accident. This study addresses the relative ability of commercially available molecular sieves to remove Cs+ from seawater. Experiments using CSTs IONSIEV IE-911 show that for 3-hour and 1-day exposures, acidic pellets have very high Cs removal capability in both normal seawater and a 9-fold concentrate. The basic form of the IE-911 performs well relative to aluminosilicate materials, but only at significantly lower Cs loadings than the acidic form.

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