The main body of the stainless steel storage tank is generally a main cylinder made of stainless steel plate, and the structure should be carefully designed in the design and processing.
Stainless steel storage tanks require ample air to meet microbial oxygen requirements. Second, the higher the height of the culture layer is beneficial to the microorganisms to utilize the oxygen in the air.
However, oxygen in the air is transmitted to the microorganisms through the medium, and the transfer rate largely depends on the mass transfer area of the gas and liquid phase. The smaller and more dispersed the bubbles, the more abundant the microorganisms can obtain oxygen.
The stainless steel fermenter is stirred as much as possible to allow the microorganisms to obtain sufficient oxygen and nutrients in the medium at each location in the tank.
In addition, good agitation facilitates the transfer of heat generated by the microbial fermentation process to the cooling inner surface of the cooling tube and the fermentor.
This is why stainless steel tanks with aeration and agitation are commonly used in biochemical engineering.