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Method for treating rifamycin residues in mushroom dregs through ultrasonic-alkali heat combination

A technology of rifamycin and combined treatment, which is applied in biological organic part treatment, preparation of organic fertilizer, organic fertilizer and other directions, achieves the effects of simple method, low damage degree and simple treatment means

Pending Publication Date: 2022-03-11
QINGDAO AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few studies on the treatment process of rifamycin and its residue, and the residue contains some harmful substances. Considering the particularity of rifamycin residue, an efficient, safe and reliable pretreatment process is urgently needed It is harmless treated to facilitate subsequent resource utilization such as composting

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  • Method for treating rifamycin residues in mushroom dregs through ultrasonic-alkali heat combination
  • Method for treating rifamycin residues in mushroom dregs through ultrasonic-alkali heat combination

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The influence of embodiment 1 reaction temperature on degradation efficiency

[0042] Weigh a certain amount of fresh rifamycin residue, add deionized water to adjust the moisture content of the residue to 95%, add the prepared 4M NaOH to the residue after adjusting the moisture content, stir evenly, and adjust the pH to 11. Place the bacteria residue with adjusted moisture content at 80, 90, and 100°C respectively, and adjust the ultrasonic intensity to 2.5W / mL in the ultrasonic processor, and start the reaction for 120 minutes.

[0043] The experimental results show that the reaction temperature has a great influence on the ultrasonic-alkali-thermal combined treatment of rifamycin slag, as shown in Table 1. When the pH value is 11, the ultrasonic intensity is 2.5W / mL, and the selected reaction temperature is 90°C, the degradation rate of rifamycin in the bacteria residue is 99.80%.

[0044] The influence of table 1 reaction temperature on the degradation efficiency o...

Embodiment 2

[0046] The influence of embodiment 2 pH on degradation efficiency

[0047] Weigh a certain amount of fresh rifamycin residue, add deionized water to adjust the moisture content of the residue to 95%, add the prepared 4M NaOH to the residue after adjusting the moisture content, stir evenly, and adjust the pH to 8, 10, 11, 12, place the bacteria residues with adjusted moisture content at 90°C respectively, adjust the ultrasonic intensity to 2.5W / mL in the ultrasonic processor, and start the reaction for 120 minutes. The experimental results show that the pH value has a great influence on the ultrasonic-alkali-thermal combined treatment of rifamycin slag, as shown in Table 2. When the reaction temperature is 90°C, the ultrasonic intensity is 2.5W / mL, and the pH value is 11, the degradation rate of rifamycin in the bacterial residue is 99.80%, which is obviously better than that of pH 8 and 10.

[0048] Table 2 Effect of pH value on the degradation efficiency of rifamycin in bact...

Embodiment 3

[0050] Embodiment 3 Ultrasonic intensity is to the influence of degradation efficiency

[0051] Weigh a certain amount of fresh rifamycin residue, add deionized water to adjust the moisture content of the residue to 95%, add the prepared 4M NaOH to the residue after adjusting the moisture content, stir evenly, and adjust the pH to 11. Place the bacteria residues with adjusted moisture content at 90°C, and adjust the ultrasonic intensity in the ultrasonic processor to 1.5, 2.0, 2.5, 3.0 W / mL, and start the reaction for 120 minutes. The experimental results show that the pH value has a great influence on the ultrasonic-alkali-thermal combined treatment of rifamycin slag, as shown in Table 3. When the reaction temperature was 90°C, the ultrasonic intensity was 2.5W / mL, and the pH value was 11, the degradation rate of rifamycin in the bacteria residue was 99.80%.

[0052] Table 3 The effect of ultrasonic intensity on the degradation efficiency of rifamycin in the bacterial residu...

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Abstract

The invention belongs to the technical field of antibiotic treatment, and particularly discloses a method for treating rifamycin residues in mushroom dregs through ultrasonic-alkali heat combination, which comprises the following steps: adjusting water content: weighing quantitative rifamycin mushroom dregs, adding deionized water, and adjusting the water content of the mushroom dregs to 95%; alkali liquor treatment: adding 4M NaOH into the mushroom dregs, uniformly stirring, and adjusting the pH value of the mushroom dregs to 8-12; carrying out hydrothermal ultrasonic treatment, namely putting the alkaline mushroom dregs into a constant-temperature water bath at 80-100 DEG C, and carrying out ultrasonic treatment for 10-120 minutes. The method disclosed by the invention is simple and efficient, does not need excessive chemical reagents and harsh conditions, does not generate secondary pollution, is a clean and sustainable technology, and is beneficial for realizing the purposes of turning waste into wealth and recycling a compost finished product as an organic fertilizer by virtue of a composting process after batch treatment is promoted, and finally realizing the purposes of reduction and recycling.

Description

technical field [0001] The invention belongs to the technical field of antibiotic treatment, and in particular relates to a method for treating rifamycin residues in bacterial residues in combination with ultrasonic-alkaline heat. Background technique [0002] Rifamycin is often used in combination with other anti-tuberculosis drugs to treat various types of tuberculosis and severe infections of drug-resistant Staphylococcus aureus. During the production and fermentation process, a large amount of rifamycin residues are produced. The current treatment and disposal of antibiotic residues The method is mainly incineration, landfill technology, etc., but the moisture content of rifamycin slag is as high as 70-80%, and the calorific value is low, resulting in high energy consumption and cost of operation, so it cannot be processed by conventional incineration methods. At the same time, The incineration of antibiotic residues must strictly implement the "Pollution Control Standar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/80
CPCC05F17/80Y02W30/40
Inventor 阎清华刘士奇侯向婷辛言君刘国成
Owner QINGDAO AGRI UNIV
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