Treatment process for antibiotic mycelium residue

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., and can solve problems such as difficult to effectively degrade, release unpleasant smell, and pollute the surrounding environment

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

[0007] Although the existing antibiotic residue treatment technologies include incineration technology, fertilizer technology, landfill and energy technology, etc., however, the treatment of antibiotic residue 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
Therefore, the harmless utilization of bacterial residues first needs to effectively degrade the antibiotics; second, the stacking and processing of antibiotic residues will release unpleasant odors, pollute the surrounding environment, and make the processing process face greater technical challenges. difficulty

Method used

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  • Treatment process for antibiotic mycelium residue

Examples

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Effect test

Embodiment 1

[0043] This embodiment illustrates the treatment process and results of the antibiotic bacteria residue provided by the present invention.

[0044] The penicillin slag was placed in a batch vertical cooker, fed with saturated steam so that the saturated vapor pressure in the batch cooker was 0.2 MPa, and degraded under airtight conditions at 120°C for 20 minutes under stirring. 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 the cyclone separation device and sent to the tail gas treatment equipment for post-treatment, and the solid phase degradation products are separated , determined, the penicillin residue in the degradation product was 5.16ppm, and the crude protein content was 44.1% by weight.

Embodiment 2

[0046] This embodiment illustrates the treatment process and results of the antibiotic bacteria residue provided by the present invention.

[0047] Penicillin slag was treated according to the method of Example 1, except that the degradation temperature was 160° C., the saturated vapor pressure in the digester was 0.618 MPa during degradation, and the pressure difference before and after pressure relief was 0.51 MPa. It was determined that the residual penicillin in the degradation product was 0.05ppm, and the crude protein content was 51.8% by weight.

Embodiment 3

[0049] This embodiment illustrates the treatment process and results of the antibiotic bacteria residue provided by the present invention.

[0050] Penicillin slag was treated according to the method of Example 1, except that the degradation temperature was 180° C., the saturated vapor pressure in the digester was 1.0 MPa during degradation, and the pressure difference before and after pressure relief was 0.9 MPa. It is determined that the residual penicillin in the degradation product is <0.01ppm, and the crude protein content is 52.9% by weight.

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Abstract

The invention relates to the field of treatment for organic waste, and discloses a treatment process for antibiotic mycelium residue. The treatment process comprises the following steps: degrading the antibiotic mycelium residue to be treated at 100-260 DEG C and under an airtight condition, then separating degradation products to obtain a solid-phase material flow and a gas-phase material flow, and carrying out post-treatment on the gas-phase material flow. Through the technical scheme, organic nutritional ingredients in the antibiotic mycelium residue can be effectively reserved while residual antibiotics in the antibiotic mycelium residue are effectively degraded, so that a good precondition is provided for harmless utilization for the mycelium residue. Moreover, the process disclosed by the invention is capable of effectively avoiding the problem that the mycelium residue releases an offensive odour during the treatment process and after the treatment; and the treated mycelium residue is odour-free and environment-friendly.

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 residue is a solid phase waste 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...

Claims

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Application Information

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