FIELD: water treatment. SUBSTANCE: apparatus has cylindrical casing, which may be positioned in pan provided with liquid discharge branch pipes. Liquid and air supply device is mounted within casing. Device has heads and nozzles Tubes attached to nozzles have length equal to 70-140 diameters of nozzles. Tubes are dipped into cylindrical casing. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 2 cl, 1 dwg
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