Antibiotic residue treatment process

A technology of antibiotic slag and treatment process, which can be used in the removal of solid waste, chemical instruments and methods, transportation and packaging, etc., and can solve the problems of environmental pollution, difficult to effectively degrade, and release unpleasant odors.

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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  • Antibiotic residue treatment process

Examples

Experimental program
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Effect test

Embodiment 1

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

[0048] The penicillin slag was mixed with ammonia water to adjust the pH value of the penicillin slag to 8.0, and the antibiotic slag was placed in a batch vertical digester, and saturated steam was introduced, so that the saturated steam pressure in the batch digester was 0.2 MPa, degraded for 15 minutes under airtight conditions at 120 °C with stirring. The batch digester is rapidly depressurized by steam explosion (the pressure difference before and after decompression is 0.1MPa), and 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. , it was determined that the residual penicillin in the degradation product was 1.98ppm, and the crude protein content was 46.3% by weight.

Embodiment 2

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

[0051] The penicillin bacterial residue was treated according to the method of Example 1, except that the degradation temperature was 180°C. The batch digester was rapidly depressurized by steam explosion (the pressure difference before and after depressurization was 0.9MPa). It was determined that the residual penicillin in the degradation product was <0.01 ppm, and the crude protein content was 53.3% by weight.

Embodiment 3

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

[0054] The penicillin bacterial residue was treated according to the method of Example 1, except that the degradation temperature was 160°C. The batch digester was rapidly depressurized by steam explosion (the pressure difference before and after depressurization was 0.51MPa). It was determined that the residual penicillin in the degradation product was <0.01 ppm, and the crude protein content was 50.9% by weight.

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Abstract

The invention relates to the field of organic waste treatment, and discloses an antibiotic residue treatment process comprising the steps of degrading antibiotic residues to be treated at 40-260 DEG C under the conditions of existence of alkaline matter and seal, then separating degradation products to obtain solid phase material flow and gas phase material flow, and performing post-treatment for the gas phase material flow. Through the above technical scheme, organic nutrients in the antibiotic residues can be reserved effectively while degrading the antibiotic residues, and good preconditions are provided for harmless utilization of residues. Moreover, in the process disclosed by the invention, the problem that the residues have disgusting smell can be avoided effectively in the treatment process and after treatment; the residues treated are free of odor and environment-friendly.

Description

technical field [0001] The invention relates to a process for treating organic wastes, in particular to a process for treating antibiotic bacterial 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, and the green degradation and utilization of antibiotic residues is a major challenge facing domestic antibiotic production enterprises. [0003] Antibiotic slag is mainly composed of microbial cell tissue, residual medium, and solid phase residues mixed in the medium in the production process, such as filter aids. The components of the antibiotic bacterial residue include: proteins, fats, carbohydrates, chitin, vitamins, minerals and residual antibiotics derived from microorganisms and culture medium. Wherein, the moisture content of the antibiotic bacterial residue is usually about 70-95% by weight. The proportion o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00
CPCB09B3/00B09B5/00B09B3/45
Inventor 武国庆熊强许克家张宏嘉车夏宁林海龙王骏郝小明
Owner COFCO NUTRITION & HEALTH RES INST
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