FIELD: chemistry.
SUBSTANCE: method of galvanic sewage purification from ions of heavy metals includes mixing galvanic sewages, which contain ions of heavy metals, with a reagent-flocculant, which contains fatty acids. As the reagent-flocculant applied are sewages of fish-processing and meat-processing food enterprises with the content of fat of 200-700 mg/l, preliminarily brought to pH 9.0 with soda ash. The mixture is settled for coagulation to complete sedimentation at room temperature with separation of sediment.
EFFECT: invention makes it possible to simplify and increase efficiency of the method of galvanic sewages purification from ions of heavy metals and simultaneously utilise fat-containing industrial sewages of food enterprises.
2 cl, 2 tbl
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