Advances in Treatment of Vegetable Oil Refining Wastes ...
2021-2-12 · It is a process involving pressurization of gas at 25–95 psig for dissolving gas into water and subsequent release of pressure (to 1 atm) under laminar flow hydraulic conditions for generating extremely fine gas bubbles (20–80 microns) which become attached to the impurities to be removed and rise to the water surface together.