METHOD OF REMOVING CHLOROORGANIC AND LIGNOSULFONATE COMPOUNDS FROM WASTE WATERS

FIELD: waste water treatment. SUBSTANCE: invention relates to treatment of waste waters from pulp-and-paper enterprises which are treated with zinc salts and imidazole or its derivatives in the form of water-insoluble mixed complexes. Method provides 70% removal of chloroorganics (chlorolignins) fro...

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Bibliographische Detailangaben
Hauptverfasser:	BROVKO O.S, SEROV V.A, ZASUKHINA L.V, AFANAS'EV N.I
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY METALLURGY TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	FIELD: waste water treatment. SUBSTANCE: invention relates to treatment of waste waters from pulp-and-paper enterprises which are treated with zinc salts and imidazole or its derivatives in the form of water-insoluble mixed complexes. Method provides 70% removal of chloroorganics (chlorolignins) from bleaching drains and 90% removal of sodium lignosulfonates from their aqueous solutions. EFFECT: increased degree of purification by 20-30%. 3 tbl