The airlift bioreactor is suitable for fermentation types with high oxygen consumption and microbial cells that are not resistant to stirring and shearing. By relying on sterile compressed air as the lifting force of the liquid, the fermentation broth inside the tank is stirred up and down to achieve mixing and mass and heat transfer processes. Simple structure, no shaft seal, not easy to pollute, high oxygen mass transfer efficiency, low energy consumption, easy installation and maintenance.
Main Advantages of Airlift Bioreactor
- The structure is simple and the basic principle is not complicated. Compared with slurry reactors with stirring blades, it has lower energy consumption
- Relying on gas to generate directional circulation, rather than centrifugal pump mechanical equipment, the flow form is determined, the liquid circulation is strong, there are no moving parts inside, it has small shear stress, and the energy dissipation is very uniform, which is of great significance for shear sensitive materials;
- Compared with traditional bubble columns, its operable gas and liquid flow rate range is much larger;
- High gas supply efficiency, ventilation in the riser can be greater than the intake of the bubble reactor, which is beneficial for aerobic reactions;
- The fluidization effect is better, and solid particles, even heavier particles, can remain completely suspended.
Features
- In situ sterilization;
- Safe and reliable;
- Accurate concentration of culture medium;
- Clear observation;
- Easy to disassemble and use.
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