Method for producing organic fertilizer by polyoxin residue

Abstract

The invention provides a method for producing organic fertilizer by polyoxin residues, which comprises the following steps: (1) filtering polyoxin fermentation liquor by a plate frame to obtain bulk polyoxin residues with a water content of 60-70%; (2) performing high-temperature and high-pressure treatment of the bulk polyoxin residues in a pressure vessel with a treatment temperature of 120-160DEG C, a saturated vapor pressure of 0.100 MPa-0.520 MPa, and treating time of 5-30 min; (3) adding potassium dihydrogen phosphate and a carrier into the residues treated in step (2), uniformly stirring; (4) adding borax into the mixture obtained in step (3) to adjust the pH value to 5.5-8.0; (5) drying the mixture obtained in the treatment of step (4) so as to obtain the organic fertilizer. The invention aims at residues obtained by filtration of polyoxin fermentation liquor, reduces the polyoxin residual amount to zero by high-temperature and high-pressure treatment, has simple operations, short treatment time, and low production cost; the content of organic matter is up to 63%; in addition, the organic fertilizer is rich in mineral matter and other plant growth stimulating substances; the purpose of no pollution is reached; the ascarid egg mortality, the colititer and the contents of other heavy metal are all within qualified ranges; the organic fertilizer can be applied to crops safely; and the organic fertilizer produced by the invention has significant fertilizer efficiency.

Description

technical field [0001] The invention belongs to the technical field of fertilizer production, and in particular relates to a method for producing organic fertilizer by using polyoxin fermentation residue. Background technique [0002] Ployoxin is a metabolite produced by Streptomyces aureus, which belongs to broad-spectrum antibiotic fungicides. Has better systemic conduction. Its mechanism of action is to interfere with the biosynthesis of chitin in the cell wall of the bacteria, so that the cell wall of the bacteria cannot be biosynthesized and lead to the death of the bacteria. After the germ tube and hyphae contact with the agent, they partially swell, rupture, overflow the cell contents, and cannot develop normally, resulting in death. Therefore, it has the effect of inhibiting the spore production of pathogens and the expansion of lesions. As a high-efficiency and low-toxic pesticide, polyoxin is widely used in the prevention and control of important diseases such a...

AI Technical Summary

Problems solved by technology

[0004] Chinese patent application 200510012998.8 provides a method for the harmless treatment of antibiotic dregs by using biotechnology, that is, fermenting the culture medium prepared with antibiotic dregs, crude fiber substances and cellulose through the compound strain of "Tianyi EM original dew" processing, but the processing time of this method is long, the cost is high, and it is difficult to popularize and apply

This technology is cracked at 600-750°C in a pyrolysis furnace, which has high equipment requirements and huge energy consumption. It is difficult to realize the treatment of a large amount of antibiotic residues, and it cannot be popularized.

[0006] There is no safe, economical, and environmentally friendly treatment method suitable for popularization and application in the literature reports.

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