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Method for preparing organic fertilizer from antibiotic mushroom dregs and product thereof

A technology of antibiotic bacterial residue and organic fertilizer, which is applied in the preparation of organic fertilizer, organic fertilizer, biological organic part treatment and other directions, can solve problems such as secondary pollution, and achieve the effect of simple method and solving difficult treatment.

Active Publication Date: 2021-07-09
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned technical problems, the present invention provides a method for preparing organic fertilizer from antibiotic scum, through microwave and ultrasonic treatment, while removing the remaining antibiotics in the antibiotic slag, the reduction of resistance genes in the antibiotic slag is realized, avoiding antibiotics Secondary pollution caused by the reuse of bacteria residue

Method used

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  • Method for preparing organic fertilizer from antibiotic mushroom dregs and product thereof
  • Method for preparing organic fertilizer from antibiotic mushroom dregs and product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The residual amount of gentamycin is 2600mg / kg, and the antibiotic slag is adjusted to 85% water content and placed in microwave ultrasonic reaction, wherein the microwave treatment time is 15min under the ultrasonic condition at the sound frequency of 150KHz, and the microwave power is 700W, and the organic solid waste After mixing according to the mass ratio of 3:1, adjust the water content to 65%, and carry out aerobic composting and fermentation for 30 days after the pH value is 7.5.

Embodiment 2

[0026] After adjusting the water content of antibiotic bacteria slag to 80%, place it in microwave ultrasonic reaction, in which the sound frequency is 200KHz, the microwave power is 1000W, and the microwave treatment time is 10min under ultrasonic conditions. After mixing with organic solid waste according to the mass ratio of 3:1, the content The water content is 65%, and the pH value is 7.0. After 35 days of aerobic composting and fermentation, the composting is turned every 5 days. The composting fermentation product is dried, crushed and granulated to obtain organic fertilizer.

Embodiment 3

[0028] Same as Example 1, the difference is that the ultrasonic condition is omitted during the microwave treatment.

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Abstract

The invention relates to the technical field of harmless treatment of antibiotic mushroom dregs, in particular to a method for preparing an organic fertilizer from antibiotic mushroom dregs and a product thereof. Antibiotic mushroom dregs are subjected to microwave treatment under the ultrasonic condition and then mixed with organic solid waste, and after aerobic composting fermentation, drying, smashing and pelleting are conducted to obtain the organic fertilizer. According to the method disclosed by the invention, through microwave combined ultrasonic treatment, residual antibiotics in the antibiotic mushroom dregs are removed, resistance genes in the antibiotic mushroom dregs are reduced, and the problem of secondary pollution caused by recycling of the antibiotic mushroom dregs is avoided. Experiments prove that the antibiotic residue in the harmless antibiotic mushroom dregs treated by the method disclosed by the invention is less than 1mg / kg, the antibiotic removal efficiency can be 99.99% within 40 minutes, and the resistance gene removal rate is greater than 6log.

Description

technical field [0001] The invention relates to the technical field of harmless treatment of antibiotic scum, in particular to a method for preparing organic fertilizer from antibiotic slag and a product thereof. Background technique [0002] Antibiotic scum refers to the mycelium waste residue produced during the antibiotic fermentation production process, which belongs to industrial waste. The main components are mycelium, metabolites produced during the fermentation process, degradation products of the medium, residual organic solvents, and residual antibiotics. Antibiotics are often used to promote the growth of livestock and prevent diseases, but the misuse of antibiotics and improper subsequent treatment of drugs can lead to antibiotics and their metabolites and transformation products entering hospitals and municipal sewage. In the environment, antibiotics are not only chemical pollutants, but also induce resistance genes and drug-resistant bacteria, and even "super b...

Claims

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Application Information

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IPC IPC(8): C05F17/00C05F15/00A62D3/178
CPCC05F17/00C05F3/00A62D3/178C05F7/00C05F9/00C05F11/00C05F11/08Y02W30/40
Inventor 戴晓虎刘惠玲蔡辰
Owner TONGJI UNIV
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