Dissolved Air Flotation

Dissolved air flotation daf is a water treatment process that clarifies wastewaters or other waters by the removal of suspended matter such as oil or solids.

Dissolved air flotation.

Dissolved air flotation systems effectively remove tss fog and other pollutants from wastewater. 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. The released air forms tiny bubbles which adhere to the suspended matter. 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.

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.