Sorption of Sr on Clay Minerals Modified with Ferrocyanides and Hydroxides of Transition Metals

摘要

The sorption properties toward strontium of bentonitic clays modified with Fe(II) and Cu(II) ferrocyanides and Ti(IV), Sn(IV), and Sb(V) hydroxides were studied. The sorption properties of modified bentonites significantly surpass those of the natural mineral. The sorption equilibrium is attained in 2 h. The most efficient sorbent is the bentonitic clay modified with titanium hydroxide, with which K_(d) reaches 3.2 X 10~(4).