Organic waste solutions containing tritium present two problems: the high toxicity of the solvents and the radioactivity of tritium In this paper the sorption behavior of the radioactivity of tritium from aqueous and organic waste solutions, containing tritium labeled compounds, was studied in Sephadex, mineral coal and alumina. It was found that the tritium retention depends on the composition of the waste solutions. Mineral coal was the best of the three materials studied to retain the organic compounds labeled with this radionuclide.