Method for preparing bio-organic fertilizer by utilizing corn steep liquor and lysine fermentation waste liquid

Abstract

The invention discloses a method for preparing bio-organic fertilizer by utilizing corn steep liquor and lysine fermentation waste liquid, relates to the field of agricultural production waste treatment, and mainly solves the problem that an existing corn steep liquor and lysine fermentation waste liquid treatment technology is complicated. The method comprises the following steps: (1) putting thelysine fermentation waste liquid in separation equipment, and separating out crystals, thus obtaining a liquid fertilizer mother solution; (2) preparing a liquid culture medium by utilizing the cornsteep liquor and the liquid fertilizer mother solution; (3) inoculating a mixed biological bacterial agent to the liquid culture medium for culturing, thus obtaining a bacteria solution; (4) uniformlymixing the corn steep liquor, the liquid fertilizer mother solution and the bacteria solution, and then carrying out decomposition fermentation, thus obtaining the bio-organic fertilizer. According to the method disclosed by the invention, the corn steep liquor and the lysine fermentation waste liquid can be fully utilized, and waste of resources is avoided; meanwhile, plenty of treatment steps are not required, sewage and exhaust gas cannot be generated, the whole process is environment-friendly, the technological process is simple and environment-friendly, and the corn steep liquor and theliquid fertilizer mother solution can be treated to a large scale.

Description

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AI Technical Summary

Benefits of technology

This technology uses both corn steeping liquors (which are used for making alcohol) from brewery processes and lysis residues produced during production. It also involves preparing biofertilizers through hydrolysis with ammonia water instead of traditional methods like chemically treatments that have negative environmental impacts such as pollution concerns associated therewith. Overall this method provides an efficient way to utilizing these sources without causing harmful side-effects while producing high quality products at low cost.

Problems solved by technology

This patented technical solution describes methods used during corn brewing operations to treat residual or spent yeast extract (YE). These solutions involve concentrating YE soluble components into an aqueous phase followed by precipitation/elecrotic lyte reduction techniques such as centrifugations, membrane separation, ion exchange resin columns, etc., resulting in pure yellowish green liver distillers' grains called XLVG. Additionally, these technologies require complicated handling and may produce odors when applied over long periods of storage due to their volatility properties.