After saturation, the selective adsorption capacity or exchange capacity of zeolite will disappear, therefore, zeolite must be regenerated to restore its adsorption and exchange capacity so that zeolite can be recycled again, which not only saves cost, but also has no pollution to the environment. The regeneration of saturated adsorption zeolites is now a hot topic of research. Currently, physical, chemical, electrochemical and biological methods are the main methods of zeolite regeneration.