Dissolved air flotation machine is mainly used for solid - liquid or liquid - liquid separation. Through the gas dissolution and release system in the waste water to produce a large number of fine bubbles, so that it adheres to the density of solid or liquid particles close to the water in the wastewater, resulting in the overall density less than the state of water, and rely on buoyance to make it rise to the water surface, so as to achieve the purpose of solid-liquid or liquid-liquid separation.

     The main function of the air float is to generate a large number of fine bubbles in the water, so that the air is attached to the suspended particles in the form of highly dispersed tiny bubbles, resulting in a state of density less than water, and the use of the principle of buoyancy to float on the water surface, so as to achieve solid-liquid separation. This process not only removes suspended matter, grease and colloidal substances in sewage, but also improves the clarity of water and treatment efficiency.