METHOD OF TREATING OF WASTE WATER CONTAINING SURFACTANTS AND INORGANIC SALTS Russian patent published in 2006 - IPC C02F1/28 C02F1/44 C02F103/38 

FIELD: waste water treatment.

SUBSTANCE: invention relates to methods for purification of effluents and providing secondary resources from waste water formed during isolation of emulsion rubbers from latex. Method of invention comprises separation and reverse-osmosis treatment to produce concentrated solution of inorganic salts as well as reuse resulting products, said separation being accompanied with adsorbent-mediated concentration of surfactants at pH 2-4 followed by extractive regeneration of adsorbent. The latter is selected from water and gas treatment wastes, namely spent cationites KU-a and KU-1.

EFFECT: reduced in price and simplified process allowing achievement of fuller recovery of surfactants from waste waters, including biologically inoxidizable and toxic substances, and improved purification of waste waters to a degree allowing their reuse.

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