Can a mixture be separated by dissolved air flotation?

1 Answer
Jul 15, 2014

Yes, dissolved air flotation removes suspended liquids and solids from water.

Dissolved air flotation (DAF) clarifies water by removing suspended matter such as oil or solids.

The water going into the flotation tank may be dosed with a coagulant such aluminum sulfate. This causes the suspended matter to flocculate.

Air is dissolved in the water under pressure. The air is then released at atmospheric pressure into a flotation tank.

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

A skimming device then removes the suspended matter that floats to the surface.