Technology for recycling beer from beer waste yeast paste

Abstract

The invention discloses a technology for recycling beer from beer waste yeast paste, which comprises the steps that the beer waste yeast paste is injected into a circulation tank, and filtered and separated by a metal membrane or a ceramic membrane through a feeding pump, a condenser and a circulation pump; the separated beer penetrating fluid is added to a semi-finished product processing system; a part of waste yeast paste mother liquor returns to the circulation tank, and the other part is filtered by the metal membrane or the ceramic membrane through the circulation pump; and the waste yeast paste is exhausted to enter a deep processing system when the seepage of filter membrane beer is less than 20L / m<2>h. The technology has the advantages of effective separation and clarification of the beer waste yeast paste, high separation speed, high precision, direct elimination of yeast and bacteria, and sterilization technology ignorance, and the separated beer can directly enter a draught beer processing system. After the beer yeast paste is separated by the membranes, the beer is recycled, no waste is exhausted, the yield and the quality of the beer are enhanced, 100 to 150 thousand tons of the beer can be recycled every year equivalent to about RMB 200 million, the BOD (Biochemical Oxygen Demand) value can be reduced by about 50%, and the environment protection load can be greatly reduced.

Description

Technical field [0001] The invention relates to the field of beer production, in particular to a process for recovering beer from waste beer yeast mud. Background technique [0002] The waste yeast mud produced in the beer production process contains a large amount of beer, and the traditional treatment method is mainly to directly discharge it into the sewer or use it as feed after drying. With the continuous increase in beer production in my country, the discharge of waste yeast mud from beer has also increased accordingly. According to statistics, for every 1,000 tons of beer produced, 10-15 tons of waste yeast mud are directly discharged into the sewer or dried. Feed, beer containing 3 to 4.5 tons cannot be recycled. At present, my country's beer production has reached 40 million tons, and it has become a veritable beer production and consumption country. It has also produced 400,000 to 600,000 tons of waste beer yeast mud, of which beer containing 120,000 to 180,000 tons can...

AI Technical Summary

Problems solved by technology

[0003] At present, most beer companies in my country do not make good use of the waste beer yeast resources, and discharge them into the sewer, which not only wastes resources, but also causes serious pollution to the environment

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