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Processing method for cephalosporin dreg

A cephalosporin and treatment method technology, applied in sludge treatment, biological sludge treatment, waste fuel, etc., can solve the problems of high energy consumption, unrealized reduction and resource utilization, and high cost, and achieve economical treatment, Reduce the impact of ammonia nitrogen on anaerobic digestion treatment, the effect of easy operation

Active Publication Date: 2013-06-12
河北华药环境保护研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention can basically eliminate drug residues in cephalosporin residues and realize the harmless treatment of cephalosporin residues, but it has not achieved its reduction and recycling; moreover, the method needs to provide relatively high pressure and There are certain safety risks in the operation process, high energy consumption and high cost, which limit its application to a certain extent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A. Thermal alkaline hydrolysis and separation treatment: Add 200 parts of cephalosporin slag, 300 parts of water and 1 part of sodium hydroxide into the reactor, stir to mix the materials evenly; use steam heating to raise the temperature in the reactor to 40°C, constant temperature reaction for 3.0h; after the reaction is completed, the materials in the reactor are separated and processed, that is, the reaction product is left at 35°C for 14h to form supernatant and sediment; finally, the supernatant is introduced into the conventional wastewater treatment system Treat and leave the sediment for subsequent use, the solid content of the gained sediment is 8%.

[0024]B. Anaerobic digestion treatment: first inoculate the anaerobic activated sludge of 50% of the volume of the anaerobic fermentation tank into the anaerobic fermentation tank; Mix uniformly at a ratio of 3:1 to obtain a sediment sludge mixture; then inject the above sludge sludge mixture with 2% volume of th...

Embodiment 2

[0030] A. Thermal alkaline hydrolysis and separation treatment: Add 200 parts of cephalosporin slag, 800 parts of water, and 4 parts of sodium hydroxide into the reaction kettle, stir to mix the materials evenly; use steam heating to make the reaction The temperature in the kettle was raised to 55°C, and the constant temperature reaction was carried out for 5.0 hours; after the reaction, the materials in the reaction kettle were separated and treated, that is, the reaction product was left at 40°C for 10 hours to form a supernatant and sediment, and finally the supernatant was introduced into The conventional waste water treatment system is used for treatment, and the sediment is reserved for subsequent use, and the solid content of the obtained sediment is 5%.

[0031] B, anaerobic digestion treatment: first inoculate the anaerobic activated sludge of 80% of the volume of the anaerobic fermentation tank into the anaerobic fermentation tank; Mix uniformly at a volume ratio of ...

Embodiment 3

[0037] A. Thermal alkali hydrolysis and separation treatment: Add 150 parts of cephalosporin slag, 600 parts of water, and 3 parts of sodium hydroxide into the reactor, stir to mix the materials evenly; use steam heating to raise the temperature in the reactor to 50°C, constant temperature reaction for 4.0h; after the reaction, the materials in the reactor were separated and treated, that is, the reaction product was left at 37°C for 13h to form supernatant and sediment; finally, the supernatant was introduced into the conventional wastewater treatment system Treat and leave the sediment for subsequent use, the solid content of the gained sediment is 6%.

[0038] B, anaerobic digestion treatment: first will inoculate in the anaerobic fermentation tank the anaerobic activated sludge of 70% of the anaerobic fermentation tank volume; Mix evenly at a ratio of 1:1 to obtain a sediment sludge mixture; then the above sediment sludge mixture with 4% of the volume of the anaerobic ferm...

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Abstract

The invention discloses a processing method for cephalosporin dreg. The processing method comprises the following process steps of: (A) thermal alkaline hydrolysis and separation treatment: uniformly mixing cephalosporin dreg, water and alkali, carrying out constant-temperature alkaline hydrolysis reaction, and carrying out solid-liquid separation at a certain temperature after the constant-temperature alkaline hydrolysis reaction, so as to obtain sediments to be standby; and (B) anaerobic digestion treatment: inoculating anaerobic activated sludge into an anaerobic fermentation tank, mixing the sediments obtained in the step (A) with excess sludge produced by utilizing wastewater biological treatment, injecting the mixture into the fermentation tank, carrying out constant-temperature stirring, and carrying out biogas residue discharging and feeding during fermentation. According to the processing method for the cephalosporin dreg, drug residues in the cephalosporin dreg can be completely removed, the problem that the anaerobic fermentation of single cephalosporin dreg cannot be effectively sustained is solved, and the reduction and innocent treatment to the cephalosporin dreg are realized; and biogas residues produced during the processing process can be used for preparing raw materials of organic fertilizers, the produced sewage gas can be used as clean fuels, and safe and effective disposition and resource utilization to the cephalosporin dreg are realized.

Description

technical field [0001] The invention relates to a treatment technology for antibiotic scum, in particular to a treatment method for cephalosporin slag. Background technique [0002] Cephalosporins are a class of broad-spectrum semi-synthetic antibiotics. The first cephalosporins came out in the 1960s. At present, there are more than 60 species on the market, and their output accounts for more than 60% of the antibiotic production in the world. The basic structure of cephalosporins is 7-aminocephalosporanic acid (7-ACA), which has the characteristics of β-lactam, and its precursor is cephalosporin C. β-lactam antibiotics are the most clinically used, most widely used, most complete variety, best curative effect and highest evaluation class of antibiotics, occupying an important position in anti-infective drugs. In the process of producing cephalosporins, when cephalosporin C is produced by fermentation, a large amount of solid waste will be produced, which is bacterial resid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P5/02C02F11/04
CPCY02E50/30Y02W10/20
Inventor 王勇军陈平韦惠民周崇晖吕永涛杨永会刘波文杨彩娟李超
Owner 河北华药环境保护研究所有限公司
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