Purification of Water from Fluoride Ions by a Lanthanum-Containing Ceramic Material

Abstract

Studies have been carried out to create a lanthanum-containing ceramic material that can be used to purify water from fluoride ions. A composition was developed for the preparation of a ceramic material, the physico-mechanical characteristics of its samples were determined, and their binding capacity to fluoride ions was investigated. There was researched environmental safety of a material. It is proved that when 6% by weight of lanthanum carbonate is added to the charge, an environmentally safe material for cleaning aqueous systems with a fluoride ion content of up to 10 mg/l can be obtained. It has been established that this material can be used with sufficient efficiency to purify water from phosphate ions.