Dissolved Air Flotation

The released air forms tiny bubbles which adhere to the suspended matter.

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 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 systems effectively remove tss fog and other pollutants from wastewater. 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.