Wastewater Purification from Inorganic Fluorine Compounds

Basing on model solutions, the conditions have been determined for purifying wastewater containing 10mg/L of fluorine in the form of 3– 6 AlF and/or 3– 6 FeF complex anions, by means of cerium compounds. For real wastewaters of the enterprises of the Kola region (Apatite JSC and Lovozero Mining-Concentrating Combine) optimum modes have been determined for the purification from fluorine impurities using titanium compounds up to the standard content of fluorine and sulphate ion established for potable water reservoirs.