Fluoride exist in natural water and are essential micronutrients for the human body, preventing tooth softening and promoting hard tissue mineralization. According to data reports, the maximum acceptable concentration of fluoride in drinking water is less than 1.5 mg/L. The incidence of high fluoride content (>1.5mg/L) in groundwater is common in both shallow and deep water.

Excessive fluoride  (>1.5mg/L)  in drinking water can  be  removed through various fluoride  removal  technologies. Fluorine  removal  technology  can  be  divided  into  several  important  categories,  including  chemical  precipitation, membrane processes, activated carbon adsorption, and ion exchange. The activated carbon adsorption process is the most commonly used technology for removing fluoride from drinking water.