Saturator performance in dissolved-air (pressure) flotation

Abstract A satisfactory method for determining the mass of air dissolved under pressure was developed by volumetrically measuring air precipitated at atmospheric pressure. Of three methods of air dissolution tested, spraying water over proprietory packing media was markedly superior. With 0–5 m packing depth full saturation was achieved at all pressures beyond 250 kPa at surface loading rates up to 2500 m 3 m −2 day −1 .