Bacterial cycle fermentation system

Abstract

The invention provides a bacterial cycle fermentation system, which comprises a fermentation tank, a temporary storage tank and a ceramic membrane mechanism, wherein the lower end of the fermentationtank is connected to the upper end of the temporary storage tank through a liquid conveying pipe, a material supply pump is arranged between the temporary storage tank and the ceramic membrane mechanism, the ceramic membrane mechanism comprises a circulation pump, a first circulation assembly and a second circulation assembly, the first circulation assembly and the second circulation assembly arerespectively connected to the circulation pump, a plurality of inverted U-shaped ceramic membrane assemblies are arranged between the first circulation assembly and the second circulation assembly, afirst concentrated liquid return pipe is arranged between the ceramic membrane assembly and the temporary storage tank, and a second concentrated liquid return pipe is arranged between the material supply pump and the fermentation tank. According to the present invention, with the bacterial cycle fermentation system, the recycling of bacteria is achieved, the bacterial loss is reduced, the seed culture period is shortened, the production cost of the bacterial fermentation is reduced, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of fermentation, in particular to a bacterial circulation fermentation system. Background technique [0002] In the biological fermentation process, the seeds need to be cultivated before entering the fermentation stage. According to the growth situation, it takes about 15 days for the seed tank cultivation to reach the concentration required for entering the fermentation tank. After the seed tank is grown and transplanted into the fermenter, the fermenter also needs to be cultivated for a period of time. After the bacteria undergo the adaptation period and the logarithmic growth period, the concentration of the bacteria can become stable, and a large amount of growth can produce the desired product. In the process of biological fermentation, the actual production time of the product is three to five days after the fermenter is cultivated to the stable period, and the bacterial culture has been more than 15 ...

AI Technical Summary

Problems solved by technology

At present, the main methods of fermentation culture include single-batch fermentation, fed-batch fermentation, and cyclic fermentation. The above-mentioned fermentation methods all have the loss of bacteria when the fermentation liquid is released for filtration, while the existing plate-and-frame filtration method has the disadvantage of replacing the filter. Frequent cloth, leaking, leaking, etc.

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