Optimum physicochemical conditions have been identified for the removal of T o from nuclear industry and reactor effluents by using a naturally available lateritic minerals (LM) mixture. The adsorption behavior of @Co on an LM from aqueous solution is reported by describing the effect of equilibration time, temperature, shaking time, hydrogen ions, adsorbent quantity, adsorbate concentration, leaching, and irradiation exposure. The data suggest an effective use of LM for isolation of T o from the effluent of reactorlradiochemical laboratories and subsequent long-time storage in reduced solid form.