Apparatus and method for removing strontium and/or cesium ions from an aqueous solution containing chemical hardness

摘要

Apparatus for removing strontium and/or cesium ions from an aqueous solution containing chemical hardness. A first column containing an organic cationic exchange resin in alkali metal form removes the chemical hardness and some of the strontium and cesium ions, and a second column containing a zeolite which can be erionite, chabazite, phillipsite, type A zeolite, or mixtures there­of, removes radioactive ions. The apparatus also includes means for passing the aqueous solution through the first column then through the second column. Also a method for removing radioactive strontium and/or cesium ions from an aqueous solution containing chemical hardness by passing the aqueous solution through a first column containing an organic cationic exchange resin in alkali metal form and then passing the aqueous solution through a second column containing a zeolite which is erionite, chabazite, phillipsite, type A zeolite, or mixtures thereof.