Innocent treatment method of antibiotic mushroom dregs

A technology of antibiotic bacterial residue and harmless treatment, applied in the directions of microbial treatment, combined biological treatment, biological organic part treatment, etc.

Active Publication Date: 2021-06-11
TONGJI UNIV
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  • Summary
  • 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 harmless treatment method for antibiotic bacteria residues. Through ultraviolet ultrasonic combined oxidation treatment, while efficiently removing antibiotic residues in antibiotic bacteria residues, the reduction of resistance genes in antibiotic bacteria residues is realized, avoiding Reuse of antibiotic residues causes secondary pollution

Method used

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  • Innocent treatment method of antibiotic mushroom dregs

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Effect test

Embodiment 1

[0029] Get the residual amount of gentamicin and be 2600mg / kg antibiotic scum to adjust the pH value to 4.5, be heated to 50 ℃ after moisture content 85%, then according to antibiotics: persulfate radical: the mol ratio of copper=1:50:8 Add ammonium persulfate and copper powder to the antibiotic bacteria residue in turn, mix well, then irradiate with 250nm ultraviolet rays, and oxidize for 30min under the condition of 200KHz ultrasonic frequency. Harmless disposal of antibiotic bacteria residues.

[0030] The preparation method of the copper powder: add nano-iron in an equimolar amount to copper ions in a copper sulfate solution with a concentration of 10g / L at 40°C under stirring conditions, and continue stirring until the solution is reddish-brown, then suction-filter the upper layer, and dry That is, copper powder particles.

Embodiment 2

[0032] Take the antibiotic residue and adjust the pH value to 5, heat it to 40°C after the water content is 90%, and then add ammonium persulfate and copper to the antibiotic residue according to the molar ratio of antibiotic:persulfate:copper=1:30:10 powder, after mixing evenly, oxidize for 40min under the condition of 280nm ultraviolet radiation and 100KHz ultrasonic frequency. Harmless disposal of antibiotic bacteria residues.

[0033] The preparation method of the copper powder: add nano-iron in an equimolar amount to copper ions in a copper sulfate solution with a concentration of 10g / L at 40°C under stirring conditions, and continue stirring until the solution is reddish-brown, then suction-filter the upper layer, and dry That is, copper powder particles.

Embodiment 3

[0035] Take the antibiotic residue and adjust the pH value to 3, heat it to 60°C after the water content is 80%, and then add ammonium persulfate and copper to the antibiotic residue according to the molar ratio of antibiotic:persulfate:copper=1:40:5 powder, after mixing evenly, oxidize for 20min under the condition of 200nm ultraviolet radiation and 150KHz ultrasonic frequency. Harmless disposal of antibiotic bacteria residues.

[0036] The preparation method of the copper powder: add nano-iron in an equimolar amount to copper ions in a copper sulfate solution with a concentration of 10g / L at 40°C under stirring conditions, and continue stirring until the solution is reddish-brown, then suction-filter the upper layer, and dry That is, copper powder particles.

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Abstract

The invention relates to the technical field of innocent treatment of antibiotic mushroom dregs, in particular to an innocent treatment method of antibiotic mushroom dregs. The innocent treatment method comprises the following steps: by taking persulfate as an oxidizing agent and copper powder as an activating agent, and carrying out ultrasonic oxidation treatment under an ultraviolet condition to realize the innocent treatment of the antibiotic mushroom dregs. According to the innocent treatment method, through combination of ultraviolet and ultrasonic treatment and oxidation treatment, resistance genes in the antibiotic mushroom dregs are reduced while antibiotic residues in the antibiotic mushroom dregs are efficiently removed, and the problem of secondary pollution caused by recycling of the antibiotic mushroom dregs is solved. The method is simple and efficient, does not need excessive chemical reagents and harsh conditions, does not generate secondary pollution, and is clean and sustainable technology. Experiments prove that the antibiotic residues in the innocent antibiotic mushroom dregs treated by the method 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 bacteria residues, in particular to a method for harmless treatment of antibiotic bacteria residues. 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 bacteria"...

Claims

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Application Information

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IPC IPC(8): B09B3/00C05G1/00C05F17/00C05F17/20C05F17/50C05G5/12
CPCB09B3/00C05C3/00C05F17/20C05F17/50C05F17/00C05G5/12C05D9/02C05F3/00C05F5/008C05F11/08Y02W30/40
Inventor 刘惠玲戴晓虎蔡辰
Owner TONGJI UNIV
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