METHOD OF PURIFICATION AND DECONAMINATION OF THE WASTE WATERS Russian patent published in 2007 - IPC C02F9/12 C02F1/02 C02F1/32 C02F1/469 

FIELD: environmental protection; methods of purification and decontamination of the waste waters.

SUBSTANCE: the invention is pertaining to the method of purification and decontamination of the waste waters with application of the electrotreatment and may be used for the local purification and decontamination of the waste waters of the enterprises of the biological industry, patient care institutions, the tuberculous and infectious diseases hospitals. The method of purification and decontamination of the waste waters consists, that the waste water is subjected to the sedimental purification with usage of the aluminum polyoxychloride as the reactant, then it is filtered by the screen with the grainy load - silicicated calcite with the subsequent gating of the clarified waste water through the anode chamber of the membrane electrolyzer, filtration in the grainy aluminum- manganous catalyst and gating through the cathode chamber of the membrane electrolyzer. The water gating of the water is conducted in the electrical field intensity of 500-600 V/m with the rate of 15-18 m/h, further the purified water is subjected to the decontamination by the ultra-violet radiation, and the extracted sediment is subjected to the thermal treatment at the temperature of 110-120°С, the pressure of 0.15-0.20 MPa within 0.2-0.3 hours. The technical result of the invention is reduction of the power inputs, decrease of the metal consumption of the equipment, provision of high-degree of the purification and decontamination of the waste water and the sediment.

EFFECT: the invention ensures the reduced power inputs, the decreased metal consumption of the equipment, provision of the high-degree of the purification and decontamination of the waste water and the sediment.

4 cl, 3 ex, 1 dwg, 4 tbl