What are bioreactors? describe both the types. with diagrams
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Bio reactor is an apparatus in which a biological reaction or process is carried out. The chemical reactions take place in presence of microorganisms in this bioreactor. It can be aerobic or anaerobic. Sterile air (oxygen bubble) is poured inside a bioreactor to prevent the cake like layer of biomass over the liquid. Biorecator helps to mix the nutrients well with water and keeps the fermentation homogeneous.
There are two types of bioreactors:
- Simple Stirred Bioreactor: A simple stirred bioreactor is cylindrical with a curved base to help in mixing of contents inside the reactor. There is a stirrer which mixes the contents evenly and supplies oxygen uniformly all over.
- Sparged Stirred Bioreactor: In a sparged bioreactor the vessel is broader and flat from the bottom. Oxygen is bubbled into the system. Bubbles increase the oxygen transfer area and the shape provides increased surface area for oxygen transfer.
For diagram, you may refer to the study material.