Dissolved Air Flotation

Conceptually the daf process is simple tiny bubbles attach to solid contaminants causing them to float and then sludge is skimmed off the surface of the water but designing a daf system for a real world application isn t quite as simple.

Dissolved air flotation.

The floc accumulated on the surface known as the float is skimmed off as sludge section 7 19 the clarified water is removed from the bottom and is sometimes called the subnatant or floated water. Dissolved air flotation operates on the principal of the transfer of floc to the surface of water through attachment of air bubbles to the floc. Dissolved air flotation daf is a proven and effective physical chemical technology for treating a variety of industrial and municipal process and wastewater streams. The removal is achieved by dissolving air in the water or wastewater under pressure and then releasing the air at atmospheric pressure in a flotation tank basin.

Dissolved air flotation systems effectively remove tss fog and other pollutants from wastewater.