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A method for removing oxytetracycline in biomedical waste residue

A technology for biomedicine and oxytetracycline, applied in the field of removing oxytetracycline in biomedical waste residue, can solve problems such as human health hazards, ecological environment impact, etc., and achieve the effects of high removal rate, avoidance of reprocessing, and good application prospects.

Active Publication Date: 2020-07-03
SHANGHAI RES INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the supervision of enterprises and environmental protection departments is not in place, it is possible that antibiotic residues will flow directly to the animal feed or organic fertilizer market without harmless disposal, and the residual antibiotics will not only affect the ecological environment, but also be enriched through the food chain hazard to human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Treat 30g of oxytetracycline waste residue, and the content of oxytetracycline is 5656mg / L. Add water to adjust the slurry to form a slurry with a solid content of 20%, and adjust the pH of the system to 1.2 with sulfuric acid. At 100°C and normal pressure, add oxidant H 2 o 2 0.3g, Catalyst FeSO 4 ·7H 2 O 0.1g, oxidized for 2 hours. After the reaction is completed, put it into a steam sterilizer under the condition of 120° C. and 0.5 MPa for 20 minutes to sterilize. Subsequently, the pH value of the system was adjusted to 5.5 by sodium hydroxide, and after filtration and drying, 35 g of a product with a solid content of 80% was obtained; the residual amount of oxytetracycline was detected to be 40 ppm, and the degradation rate reached more than 99%.

Embodiment 2

[0033] Treat 100 g of oxytetracycline waste residue, and the content of oxytetracycline is 5235 mg / L. Add water to adjust the slurry to form a slurry with a solid content of 10%, and adjust the pH of the system to 1.5 with sulfuric acid. At 85°C and normal pressure, add oxidant H 2 o 2 0.3g, Catalyst FeSO 4 ·7H 2 O 0.06g, oxidized for 3.5 hours. After the reaction is completed, put it into a steam sterilizer under the condition of 110° C. and 0.2 MPa for 40 minutes to sterilize. Subsequently, the pH value of the system was adjusted to 5.6 by potassium hydroxide, and after filtration and drying, 125 g of a product with a solid content of 78% was obtained; the residual amount of oxytetracycline was detected to be 0.5 ppm, and the degradation rate reached more than 99%.

Embodiment 3

[0035] Treat 310g of oxytetracycline waste residue, and the content of oxytetracycline is 5100mg / L. Add water to adjust the slurry to form a slurry with a solid content of 12%, and adjust the pH of the system to 1.0 with sulfuric acid. Under the conditions of 140°C and 0.4Mpa pressure, add oxidant H 2 o 2 0.5g, Catalyst FeSO 4· 7H 2 O 0.5g, oxidized for 0.5 hours. After the reaction is completed, put it into a steam sterilizer under the conditions of 130° C. and 0.4 Mpa for sterilization for 30 minutes. Subsequently, the pH value of the system was adjusted to 6.0 by calcium hydroxide, and after filtration and drying, 416 g of a product with a solid content of 75% was obtained; the residual amount of oxytetracycline was detected to be 15 ppm, and the degradation rate reached more than 99%.

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Abstract

The invention relates to a method for removing oxytetracycline in biological medicine waste residues. The steps of pretreatment, catalytic oxydative degradation, bacterium inactivation, neutralizing treatment and the like are adopted, and an organic matter waste residue product containing no oxytetracycline can be formed after drying and can be used for preparing subsequent soil conditioners and organic and inorganic compound fertilizer. Compared with the prior art, purchase, use and management are easy, and hydrogen peroxide is convenient to use; and the method is used for treating the biological medicine waste residues, the oxytetracycline waste residue cost is low, the treatment process is fast, environment-friendly and small in harm, finally, the biological medicine waste residues are used as raw materials of the organic fertilizer or the soil conditioners, and the utilization value is high.

Description

technical field [0001] The invention belongs to the technical field of medicine and environmental protection, and in particular relates to a method for removing oxytetracycline in biological medicine waste residue. Background technique [0002] my country is the world's largest producer and exporter of antibiotic raw materials, producing more than 70 kinds of antibiotics, accounting for 70% of the world's total production. It is estimated that 8-10 tons of bacteria residues are produced per ton of antibiotics, and millions of tons of bacteria residues containing a small amount of antibiotics will be produced every year. [0003] Because antibiotic fermentation waste bacteria residue contains a small amount of antibiotics and their degradation products, it has potential harm to the ecological environment and has become one of the internationally recognized public hazards. If the supervision of enterprises and environmental protection departments is not in place, it is possib...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D3/38
CPCA62D3/38A62D2101/47
Inventor 邹晓岱曹卫宇卢啸旸何佩华田智宇陈国华张伟吴向阳罗勇
Owner SHANGHAI RES INST OF CHEM IND
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