Development of empirical equation for analcime in the treatment of nuclear waste

A novel description has been provided by the modeling of adsorption behavior of the analcime zeolite. Based on the data obtained by an experimental research, models were developed on the natural and synthesized analcime for the adsorption of the radioisotopes of Rb+, Cs+, and Sr2+ at high temperatures using tablecurve and eviews software. In the batch operation, the best adsorption equation was presented. The results which revealed the following equation was the best choice:logN=c1+c2logT+c3logKd+c4KdlogN=c1+c2logT+c3logKd+c4KdTherefore the empirical equation is recommended for the effective estimation of adsorption amount of the analcime zeolite within a shorter time at higher temperatures.

► An empirical correlation is proposed.
► Simplicity of the empirical correlation is very important.
► Tests have shown that correlation is excellent.