METHOD OF TREATING INDUSTRIAL WASTE WATERS, INSTALLATION AND GALVANIC COAGULATOR FOR IMPLEMENTATION OF THIS METHOD Russian patent published in 1999 - IPC

FIELD: waste water treatment. SUBSTANCE: carbon dioxide gas and air are introduced under pressure into waste water, which is then successively passed through ultrasonic and fields, galvanic couple having been preliminarily subjected to vibration. Solid phase is first separated in thin-layer settler and then on sand filter. Ultrasonic generator is mounted between galvanic coagulator and electromagnet, and ejector is mounted between receiving tank and water pump and connected to compressed air line and carbon dioxide cylinder. Thin-layer settler and sand filter are placed in series after electromagnet. Casing of galvanic coagulator is rigidly secured on platform supported by legs allowing vibration motions. EFFECT: reduced expenses and enhanced efficiency of removing heavy metal cations and anions. 7 cl, 2 dwg, 4 tbl, 3 ex