In aeration by conventional methods, due to the limitation of oxygen supply, the removal processes of organic matter cannot be completed. However, in the aeration method by nanobubbles, there is no limitation in terms of oxygen supply. Unlike larger bubbles that quickly reach the water surface and disintegrate there, nanobubbles have very low buoyancy and can spread throughout the water due to Brownian motion. The long residence time of nanobubbles in water, as well as the larger surface area of the interface, increases their oxygen transfer capacity significantly compared to conventional aeration systems. Nanobubbles can be injected at any depth of the tank and transfer oxygen to all points such as the sludge layer at the bottom of the tank, which needs oxygen in order to promote aerobic decomposition and conversion of nutrients.

Advanced aeration with nanobubbles is an advanced method of injecting oxygen into water, which increases the efficiency of the biological treatment process, reduces the amount of gas released to the outside environment, and reduces treatment costs.