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The usability of surfactant-aided ultrafiltration for removal of fluoride ions from aqueous solutions has been investigated. The experiments were conducted with the use of cellulose and polyethersulfone membranes. Fluoride solutions containing 10 and 100 mg F -/dm 3 and cationic surfactants: octadecylamine acetate (ODA) and hexadecylpyridium chloride (CPC) were used in the experiments. The concentration of surfactants amounted to 320-960 mg/dm 3 . Ultrafiltration process was run under adoi:10.37190/epe170201 fatcat:e35cbo7myvcktmvmwcvs6na32i