Any procedure by which oxygen ...

Any procedure by which oxygen is added to water can be considered a type of water aeration. This being the only criterion, there are a variety of ways to aerate water. These fall into two broad areas – surface aeration and subsurface aeration. There are a number of techniques and technologies available for both approaches.The bottom diffused aeration process introduces compressed air to a deeper part of the water column. A diffuser breaks the compressed air into fine bubbles. As the bubbles rise through the water column some oxygen from the bubbles is dissolved into the water.Different type of aeriation are used

1. Natural aeration

2. Low speed surface aerator

3. Fountains

4. Floating surface aerators

5. Paddlewheel aerators

6. Subsurface aeration

7. Jet aeration

8. Coarse bubble aeration

9.  Fine bubble aeration