①TT+CR highly chemical crystallization reactor strengthens Ca2+ and F- to form CaF2 crystal particles (which can be recycled as resources).
②M+FLO magnetic flocculation deep defluorination by adding aluminum chemical adsorption F-co-precipitation (effluent F < 1.0mg/L)
Note: The generated aluminum mud can be recycled, greatly reducing the cost of aluminum agent fluoride removal.