Fluorine is one of the essential trace element, when the fluorine content in drinking water shortage, susceptibility to caries; But if the long-term drinking high fluorine concentration of water, can cause dental fluorosis, fluorosis of bone and so on. Industry, containing fluorine ore mining, metal smelting, aluminum processing, coke, glass, electronics, electroplating, chemical fertilizers, pesticides and other industries discharge of wastewater often contains high concentrations of fluoride, cause environmental pollution.