Aerators - Types of aerators - Gravity aerators

Unit 12 - Management of ponds

Aerators
Types of aerators

Gravity aerators
Gravity aerators are simple to construct and are reliable. These are the most common type of aerators used in small semi-intensive shrimp farms. In this method water is allowed to rise above, the pond/tank level and then to fall freely in the pond or tank through atmosphere, where water comes in contact with oxygen and thus aeration is done. In simple water falling and splashing into pond and aeration is done.

During the process of water raising or falling, potential energy is converted into kinetic energy. That serves to break apart the falling water. When water is broken into droplets, the area over which the diffusion can take place is increased, thereby increasing the dissolved oxygen of the water.
Last modified: Thursday, 28 April 2011, 4:24 AM