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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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

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

Example Embodiment

[0023] Example 1

[0024] The residual amount of gentamicin is 2600mg / kg of antibiotic bacteria residues after adjusting the water content to 85% and then placed in a microwave ultrasonic reaction in which the ultrasonic frequency is 150KHz, the microwave power is 700W, and the organic solid waste is treated by microwave for 15min under ultrasonic conditions. After mixing according to the mass ratio of 3:1, the water content was adjusted to 65%, and the pH value was 7.5, followed by aerobic compost fermentation for 30 days. During this period, the compost was turned every 5 days, and the compost fermentation product was dried, crushed and granulated to obtain organic fertilizer.

Example Embodiment

[0025] Example 2

[0026] After adjusting the water content of the antibiotic bacteria residue to 80%, it is placed in a microwave ultrasonic reaction where the sound frequency is 200KHz, the microwave power is 1000W, and the microwave treatment time is 10min under ultrasonic conditions. The water content is 65% and the pH value is 7.0, followed by aerobic composting fermentation for 35 days, during which the composting is carried out every 5 days, and the compost fermentation product is dried, crushed and granulated to obtain organic fertilizer.

Example Embodiment

[0027] Example 3

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

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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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