How to treat fluorine-containing wastewater

Several common treatment methods of fluorine-containing wastewater-chemical precipitation, coagulation precipitation, adsorption, membrane separation and biochemical method. Chemical precipitation combined with aluminum salt, magnesium salt and phosphate can achieve better fluoride removal effect than simply using calcium salt: polyacrylamide is not easy to produce new water pollution, and the use of new adsorbents such as activated magnesium oxide, rare earth metal oxide and hydroxyapatite can improve the treatment efficiency of adsorption method. Membrane separation method is suitable for treating fluorine-containing wastewater with many impurities, but its industrial application is still difficult. The analysis and research on the composition of fluorine-containing wastewater is an important link to determine the treatment method of fluorine-containing wastewater.