see also

Dissolved Air/Nitrogen Flotation is used in applications where the specific gravity of the solids or contaminants is very close to or less than 1.0.

Dissolved Air or Nitrogen provides the driving force for separation. The gas is dissolved into a liquid (water) under pressure in a specially designed saturation tank.

The two main components of Dissolved Air/Nitrogen Flotation are the flotation mechanism and the pressurization system.