Natural zeolite filter is a kind of aluminum silicate minerals, showed white or brick red appearance, is a weak acid cation exchange agent, by the artificial into the active component. It has a new ion exchange or adsorption capacity, adsorption capacity will also increase accordingly.It mainly used for small and medium sized boiler water softening treatment to remove water calcium and magnesium ions, thereby reducing the service life of boiler scale. In wastewater treatment,can be used to remove phosphorus and lead as well as the six-valent iron. The failure zeolite can be used in brine countercurrent for regeneration and reuse.