Types of Aerators commonly used in water treatment:

- Surface Aerators:
Surface aerators are commonly used in water treatment to introduce oxygen into the water by creating turbulence at the water surface. This helps in the transfer of oxygen from the atmosphere to the water, which is essential for the biological processes involved in water treatment.

- Diffused Aerators:
Diffused aerators work by pumping air through diffusers at the bottom of a water body. This creates bubbles that rise to the surface, promoting oxygen transfer and mixing in the water. Diffused aerators are often used in wastewater treatment plants and aquaculture systems.

- Mechanical Aerators:
Mechanical aerators use rotating impellers or propellers to agitate the water and introduce oxygen into it. These aerators are effective in mixing and aerating large volumes of water, making them suitable for applications such as reservoirs, lakes, and large tanks.

- Jet Aerators:
Jet aerators utilize high-velocity jets of water or air to create turbulence and mixing in the water. This helps in distributing oxygen throughout the water body and enhancing the efficiency of biological processes. Jet aerators are commonly used in industrial wastewater treatment systems.

Therefore, there are four common types of aerators used in the treatment of water: surface aerators, diffused aerators, mechanical aerators, and jet aerators. Each type has its advantages and applications, depending on the specific requirements of the water treatment process.