Therefore, the new air diffuser has both shear air fine bubble diffuser diffusion and tiny bubbles blowing out, and the two ways cooperate to inject oxygen into the air into the sewage tank. When the air diffuser is in operation, the air enters the lower vent and the lower air chamber of the air diffuser through the valve, and also enters the upper chamber through the upper vent. Since the force area of the lower air chamber rotary vacuum disc filters is greater than the force area of the upper air chamber, the air in the lower air chamber will lift the movable pallet upwards, the rubber disc is compressed, and the air will be sprayed outward from the circumference between the disc body and the movable pallet, forming a jet of rotation and rising, and the water around the upper part of the diffuser also flows upward with the air; At this time, the water around the lower part of the expander flows to the diffuser, supplementing the space of the water that flows with the air, and the water flowing to the diffuser will make the water surface drop, and the water flowing upward with the air will flow back to the falling water surface. Because the air is continuously blown out, the water will continue to rotate upward with the air, forming a turbulent flow, and the interface between air and water is relatively moving, forming an interface shear. At the same time, the air entering the upper air chamber from the upper vent is blown out of the tiny gap between the rubber disc and the movable pallet, forming tiny bubbles. 

The new air diffuser has the following advantages:
1.Oxygen transfer efficiency is high: at present, many air diffusers only have a single function of either hydraulic shearing or sending out tiny bubbles, and the new air diffuser has the performance of making liquid turbulence, shear diffusion, and can release tiny bubbles, so the oxygen transfer efficiency is high.
2.Not clogged: due to the elastic effect of the rubber plate and the rubber plate and the movable plate, between the movable plate and the disk body in the structure of the reasonable design, so when the air is stopped, the gap between the Dissolved Gas Flotation two outlets is quickly closed, will not cause blockage, which solves the long-term design and management personnel encountered the diffuser is blocked thorny problem.
3.Wide range of application: due to the new design of the air diffuser and the selection of polymer as the material of the parts, it is suitable for sewage of various water quality.