METHOD OF CLARIFYING WATER Russian patent published in 1998 - IPC

FIELD: waste water treatment. SUBSTANCE: clarifying recycling, industrial, household, drinking water, and waste waters consists in adding coagulant and/or flocculant, saturating water by air bulbs via pneumohydraulic aeration, flotation separation of coagulated slimes and air flocculi, separation of solid particles and slime flocculi by their sedimentation from aqueous medium, saturating water with bulbs, and flotation separation of hydrophobic impurities. All operations are conducted in adjacent zones of the same chamber separated by vertical perforated partitions with gaps under their lower edges. Spray agitation of water is only limited by zones saturated with air bubbles and does not reach flotation zones, whereas water is saturated by air bubbles using ozone-air mixture. EFFECT: enhanced water treatment efficiency. 3 dwg