Treatment technology for antibiotic fungus residues

A technology of antibiotic bacteria residue and treatment process, which is applied to the removal of solid waste, chemical instruments and methods, transportation and packaging, etc. It can solve the problems of releasing unpleasant smell, polluting the surrounding environment, and being difficult to effectively degrade, etc.

Active Publication Date: 2017-07-07
COFCO NUTRITION & HEALTH RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the treatment of antibiotic residues still faces many challenges
First of all, for the antibiotics remaining in the bacterial residue, except for incineration and carbonization heat treatment, it is difficult to effectively degrade in the existing technical solutions, and will re-enter the environment and become a hotbed for the cultivation of drug-resistant microorganisms
Second, the stacking of antibiotic residues and the treatment process will release unpleasant odors, pollute the surrounding environment, and make the treatment process more technically difficult

Method used

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  • Treatment technology for antibiotic fungus residues

Examples

Experimental program
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Effect test

Embodiment 1

[0047] This embodiment illustrates the treatment process and results of the antibiotic bacteria residue provided by the present invention.

[0048] The penicillin slag to be treated is mixed with citric acid to adjust the acid concentration of the penicillin slag to 0.01M, and the penicillin slag is placed in a batch vertical cooker, and saturated steam is fed into the batch cooker. The saturated vapor pressure is 0.2MPa, and it is degraded under airtight conditions at 120°C and stirring for 15 minutes. The batch digester is quickly depressurized by steam explosion (the pressure difference before and after the decompression is 0.1MPa), the exhaust gas is separated by a cyclone separation device and sent to the gas treatment equipment for post-treatment, and the solid phase degradation products are separated , determined, the residual penicillin in the degradation product was 2.03ppm, and the crude protein content was 45.8% by weight.

Embodiment 2

[0050] This embodiment illustrates the treatment process and results of the antibiotic bacteria residue provided by the present invention.

[0051] The penicillin residue was treated according to the method of Example 1, except that the acidic substance was acetic acid, and the degradation temperature was 180°C. During degradation, the saturated vapor pressure in the digester is 1.0 MPa, and the pressure difference before and after pressure relief is 0.9 MPa. It is determined that the residual penicillin in the degradation product is <0.01ppm, and the crude protein content is 53.9% by weight.

Embodiment 3

[0053] This embodiment illustrates the treatment process and results of the antibiotic bacteria residue provided by the present invention.

[0054] Penicillin scum was treated according to the method of Example 1, except that the degradation temperature was 150°C. During degradation, the saturated vapor pressure in the digester was 0.476MPa, and the pressure difference before and after pressure relief was 0.37MPa. It is determined that the residual penicillin in the degradation product is <0.01ppm, and the crude protein content is 51.4% by weight.

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Abstract

The invention relates to the field of treatment of organic waste and discloses a treatment technology for antibiotic fungus residues. The treatment technology includes the steps that the to-be-treated antibiotic fungus residues are degraded at the temperature ranging from 40 DEG C to 260 DEG C under the existence of acid substances and under airtight conditions; and then degraded products can be separated to obtain solid-phase substance flow and gas-phase substance flow, and after-treatment is conducted on the gas-phase substance flow. By means of the above technical scheme, residual antibiotics in the antibiotic fungus residues can be effectively degraded, meanwhile, organic nutrient components in the residual antibiotics are effectively reserved, and good preconditions are provided for harmless utilization of the fungus residues. In addition, in the treatment process and after the treatment in the technology, the problem that bad smells are released from the fungus residues can be effectively solved, the treated fungus residues are free of foul smells, and environment friendliness is good.

Description

technical field [0001] The invention relates to a process for treating organic waste, in particular to a process for treating antibiotic residues. Background technique [0002] Antibiotic residues are solid wastes produced during the production of antibiotics by microbial fermentation. China is the largest country in the production of antibiotics. The green degradation and utilization of antibiotic residues is a major challenge for domestic antibiotic manufacturers. [0003] Antibiotic residues are mainly composed of microbial cell tissue, residual medium, and solid phase residues mixed in the medium during the production process, such as filter aids. The components of the antibiotic bacteria residue include: protein, fat, carbohydrate, chitin, vitamins, minerals and residual antibiotics derived from microorganisms and culture medium. Wherein, the moisture content of the antibiotic bacteria residue is usually about 70-95% by weight. The proportion of crude protein in soli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00
CPCB09B3/00B09B5/00B09B3/40
Inventor 武国庆张宏嘉熊强许克家林海龙王骏郝小明
Owner COFCO NUTRITION & HEALTH RES INST
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