METHOD FOR CLARIFICATION OF INDUSTRIAL WATER AND DEVICE FOR ITS EMBODIMENT Russian patent published in 1997 - IPC

FIELD: treatment of industrial water. SUBSTANCE: method includes introduction into industrial water of flocculant solution, saturation of industrial water with air bubbles by pneumohydraulic aeration, flotation separation of air flocculi, oil products, surfactants and oily substances, separation of solid particles and sludge flocculi by their precipitation in aqueous medium. Saturation of industrial water with bubbles and flotation separation of hydrophobic impurities are carried out in adjacent zones of one chamber separated by vertical perforated partitions with gaps at their lower edges. Jet stirring of water is limited only by zones of its saturation with air bubbles without touching the flotation zones. EFFECT: higher efficiency. 4 cl, 3 dwg