METHOD OF CLEANING SEWAGE WATERS FROM ORGANIC AND MINERAL IMPURITIES Russian patent published in 1995 - IPC

Abstract RU 2036851 C1

FIELD: cleaning of sewage waters. SUBSTANCE: method involves treating sewage water with hydrochloric acid or alkali; separating precipitate by, for example, filtering; neutralizing filtrate by alkali or hydrochloric acid respectively and directing for vacuum evaporation to obtain commercial sodium chloride and condensate. Precipitate is directed for obtaining commercial fat and protein. EFFECT: increased efficiency of method. 1 dwg

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RU 2 036 851 C1

Authors

Piljagin M.V.

Krasikov Ju.V.

Zuev Ju.A.

Vafina R.G.

Piljagina V.V.

Dates

1995-06-09—Published

1990-02-09—Filed