Fermentation tank main components query

### Fermenter Main Components and Functions

1. **Fermenter Body**:

- The fermenter is a sealed tank designed to cultivate and ferment various bacteria.

- It must be tightly sealed to prevent contamination during the fermentation process.

2. **Stirring Paddle**:

- Located inside the fermenter, the stirring paddle ensures constant agitation of the fermentation liquid.

- The stirring process is driven by a main shaft extending upward from the tank bottom.

3. **Bottom Venting Sparger**:

- A venting sparger at the bottom allows air or oxygen to be introduced, essential for bacterial growth.

- The sparger creates a vacuum on its backside, drawing in air as the impeller rotates, which is then dispersed by the impellers for even distribution.

4. **Control Sensors**:

- The top plate of the fermenter houses control sensors, including pH and DO (dissolved oxygen) electrodes.

- These sensors monitor and regulate the pH and DO levels of the fermentation liquid during the process.

5. **Controller**:

- The controller manages and displays fermentation conditions, ensuring optimal operation.

These components work together to maintain the ideal environment for bacterial growth and fermentation.