Difference between Aeration and Agitation
No. | Aeration |
Agitation |
|
1. | Definition | A process in which air is introduced to increase concentration of oxygen in liquids is called as Aeration. | Microbial cells uniform suspension in homogeneous nutrients medium is called as Agitation. |
2. | Functions | Aeration mainly supplies enough oxygen to the microbes for proper metabolism. | Agitation gives proper mixing of the nutrients. Hence, it provides proper nutrients to the every organisms. |
3. | Applications | Application of aeration are improves air exchange between the soil and atmosphere, improves fertilizer uptake and use, reduces water runoff and puddling, enhances soil water uptake etc. | Application of Agitation are dissolving of solids into the liquids e. x. salt in water, Blending of two miscible liquids such as ethyl alcohol and water, dispersing a gas in liquid etc. |
4. | Parts of fermenter | The aeration system (or impeller) helps to introduce air into the fermentation medium. | The agitator gives homogenous environment all over the fermenter, helps in mixing oxygen and heat transport. |