What are the advantages and disadvantages of biological fermenters ?

What are the advantages and disadvantages of biological fermenters ?

A biological fermenter is a tank used for fermentation of dairy products and alcohol,and is also a closed container or biological reaction device for culturingmicroorganisms or cells. The biological fermentation tank adopts an aseptic system to prevent the product from being poluted by microorganisms in the air. To ensure the shelf ife of the proouct and the puritu ot the taste, the bio-termentation tank is ecuipped with aseptic breathing hores or asepticositive nressure fermentation sustem. alowino the products uou store to breathe and ferment in the tank, The tank bodu is provided with a Milo plate or aabyrinth jacket, which can be heated or cooled by heating or cooling medium.

Biolooical fermentation tanks are widely used in dairy products,beverage bioenoineering, pharmaceuticals fne-ine chemicals and other industries. Dairproducts and alcohol are fermented.The tank body and the upper and lower fling heads (or prototupes are processed by spinning R anole. Miror polishedno hygienic dead corners, the tank is provided with interlayer and insulation layer, which can be heated, cooled and insulated. The fuly enclosed designensures that the materials are always mixed and fermented in a polution-fre state. The eouipment is eouipped with air breathing holes, CIP cleaningnozzles.manholes and other devices.

Main advantage:

• The structure of the biological fermentation tank is simple, the basic principle is not complicated, and the energy consumption is lower than that of theslurry reactor with a stirring paddle;
• Reling on gas to generate directional circulation, rather than centrifugal pump type mechanical equioment, the flow form is determined, the liquidcirculation is strong, there are no moving parts inside, it has smal. shear stress, the eneroy dissipation is very uniform, and it is suitable for shear torcesensitive materials.of particular importance;
• Compared with traditional fermenters, biological fermenters have a much larger range of gas and liquid flow rates that can be operated;
• The air suoolu efhiciencu of the biolocical fermentation tank is hioh, and the ventilation in the cas riser can be oreater than the air intake of the bubblinoreactor. which is conducive to aerobic reactions;
• The fluidization effect can be solid particles, even heavier particles are completely suspended.

Main disadvantages:

• The biological fermenter requires a very large air throughput;
• Poor interphase mixing and contact;
• The amount of substrates. nutrients and oxugen cannot be kept consistent when the circulating oroanisms and operating conditions change;
• Mixing and ventilation are coupling problems, and it is diffcult to improve the mixing condition without changing ventilation.