Answer Center Contact Us About Us Careers

WaterSolutions Fluoride Removal from Water or Air

Potable Water: Fluoride is a very low selectivity anion so it can not be removed from water without first removing all of the higher selectivity anions like chloride or sulfate. Anions are removed according to their selectivity as described in the table of selectivity data (82K PDF).

Fluoride can be selectively removed with activated alumina. There are many suppliers available for this media.

Wastewater: Under acidic conditions, fluoride is present as HF and can be removed from solution with an acid absorber like DOWEX™ M-43 resin. Under neutral to basic conditions,DOWEX 21K XLT resin has the strong base functionality needed to split the salt. For streams that have a high organic content and are prone to surface fouling, DOWEX MARATHON™ MSA strong base anion exchange resin is recommended. Anions are removed according to their selectivity as described in the table of selectivity data (82K PDF).

Acid Vapor Capture: Halogen acid gases cause corrosion problems in a wide variety of applications. For information on corrosion control, please see information relating to DOWEX M-43 resin.

Fluorine - F

The Group VIIA elements (fluorine, chlorine, bromine, iodine) are commonly referred to as halogens. Halogen atoms are characterized by an electronic structure where they are missing one electron so they readily form the anion X^-.

Fluoride has long been added to drinking water to help prevent tooth decay. When developing teeth are exposed to high levels of fluoride, the adult teeth will have a mottled appearance called fluorosis.

WaterSolutions Fluoride Removal from Water or Air

Request Information