K 2 Ti 6 O 13 /SiO 2 adsorbents were prepared by sol-gel method and good microcrystalline K 2 Ti 6 O 13 phases were formed at 500°C. From EDS of the adsorbents before and after adsorption of Sr 2? it showed that there was ionexchange reaction between K ? and Sr 2? . Experimental data on adsorption isotherms were best fit by the Freundlich and Langmuir-Freundlich model. The experimental data indicated that the pseudo-second order kinetic equation was best fit for both single Sr 2? solution and simulated Fukushima wastewater. The pH approaching to neutral displayed a better adsorption behavior for Sr 2? solution. The breakthrough capacity for treatment of Fukushima wastewater increased with decreasing flow rate and increasing bed diameter.

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