FIELD: waste water treatment.
SUBSTANCE: invention relates to treatment of waste waters originated from fluorine-containing polymer production. Fluorine-containing emulsifiers, in particular perfluorooctanoic acid, are bound by anion-exchange resins. Further, indicated emulsifiers are washed out from anionite with water-organic mixture containing some amount of ammonia and having boiling temperature below 150°C. Ammonia-containing solvent is preferably distilled away and emulsifier and ammonia-containing solvent are reused.
EFFECT: increased concentration of emulsifier in eluate.
5 cl, 4 tbl, 5 ex
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