Research status of low concentration fluoride wastewater treatment process

Fluoride is one of the essential trace elements in the human body. China is a typical area with large areas of high fluoride, so it is very necessary to study the removal of fluoride ions in water. At present, the main methods of fluoride removal in water include the ion exchange method, adsorption method, and chemical precipitation method, among which the coagulation precipitation method is the most widely used method of fluoride removal. This paper mainly reviews the current methods of fluoride removal in water and the latest research progress. It is pointed out that in the actual treatment process of fluorine-containing wastewater, appropriate methods should be adopted for different kinds of wastewater.