Removal of cesium from simulated liquid waste with countercurrent two-stage adsorption followed by microfiltration

► The adsorption isotherm of cesium by copper ferrocyanide followed a Freundlich model. ► Decontamination factor of cesium was higher in lab-scale test than that in jar test. ► A countercurrent two-stage adsorption-microfiltration process was achieved. ► Cesium concentration in the effluent could be calculated. ► It is a new cesium removal process with a higher decontamination factor.