Anaerobic fermentation and utilization method and equipment for solid waste during bean products processing and application of solid waste

Abstract

The invention discloses an anaerobic fermentation and utilization method and equipment for solid waste during bean products processing and application of the solid waste. The method comprises the steps: performing fermentation and enzymolysis of yellow serofluid, and crushing bean hulls; when bean residues are discharged, spraying the bean hulls and the fermented yellow serofluid onto the surfaceof the bean residues to form a mixture; compressing the mixture, bagging the compressed mixture, and adding molasses alcohol mash, fructose and ammonium sulfate for standing; and vacuumizing the bagged mixture for natural anaerobic fermentation to produce a decomposed product. According to the anaerobic fermentation and utilization method and equipment, all solid and liquid waste during bean products processing are fully utilized; anaerobic mixed fermentation is employed; respective nutrition of the bean hulls, bean residues and yellow serofluid is combined, so that the nutrition is more balanced and complementary, the protein content is increased, and the cellulose content is reduced; and more importantly, the original nutritional value is preserved for a longer time, the storage time isextended, palatability is improved, transportation cost is reduced, economic efficiency is improved, equipment investment is low, operation is convenient, and practicability is high.

Description

technical field [0001] The invention relates to the technical field of treatment and comprehensive utilization of soybean product processing waste, in particular to a method, equipment and application of anaerobic fermentation of soybean product processing solid waste. Background technique [0002] Soybean hulls (Soyhulls, SH) refer to the outermost layer of beige or light yellow soybean shell-like fragments, accounting for about 8% of soybean weight and about 10% of soybean volume. Usually refers to the main by-product remaining after leaching and dehulling during the production of soybean meal. The nutritional components of soybean hulls from different origins are different, and the processing method also affects the nutritional characteristics of soybean hulls. The cellulose content of soybean hulls is 38% DM, but the lignin (ADL) content is less than 2%. Its crude fiber content available to ruminants is high, and the lignin content that cannot be utilized is low, so soy...

AI Technical Summary

Problems solved by technology

[0004] Yellow pulp water is a by-product of soybean products during the pressing and molding process. It contains a large amount of water-soluble proteins, amino acids and flavonoids, but the amount is large, the transportation cost is high, the nutritional content is high and complex, and comprehensive utilization is difficult. The main technical difficulties and problems faced by soybean product processing enterprises in the production process must be dealt with under the current pressure of environmental protection. The current treatment methods and methods need to consume a lot of energy, resources, and labor costs. Instead of making full use of its nutritional value , but it adds a lot of cost to the enterprise, and the effect is not good

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