The main advantage of anaerobic fermentation is that it eliminates the significant costs associated with providing and maintaining the oxygen needed for aerobic processes, specifically costs related to aeration, agitation, and cooling.
Here's a breakdown of why this is a crucial advantage:
- Reduced Energy Costs: Aerobic fermentation necessitates a constant supply of oxygen, which requires energy-intensive equipment like aerators and agitators to dissolve oxygen into the fermentation broth. Anaerobic fermentation bypasses this need, leading to substantial energy savings.
- Simplified Equipment and Operation: Without the need for aeration systems, the overall equipment setup becomes simpler and less expensive to maintain. This simplification also reduces the complexity of the operational process.
- Lower Cooling Requirements: Aerobic processes often generate significant heat due to metabolic activity, demanding cooling systems to maintain optimal temperatures. Anaerobic fermentation typically generates less heat, lessening the burden on cooling systems and further reducing energy consumption and costs.
- Suitable for Oxygen-Sensitive Products: Certain valuable products are sensitive to oxygen. Anaerobic fermentation provides a controlled environment that allows the production of these compounds without the risk of degradation.
In essence, the absence of the need for oxygen makes anaerobic fermentation a more economical and operationally simpler option for various industrial and biotechnological applications.