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Method for performing anaerobic innocent treatment on erythromycin mushroom residue and using erythromycin mushroom residue for producing organic fertilizer

A technology for harmless treatment of erythromycin slag, applied in applications, fertilization devices, fertilizer mixtures, etc., can solve problems such as non-harmless treatment, complicated process, and difficult discharge, and achieve significant economic and social benefits , high processing efficiency and low processing cost

Inactive Publication Date: 2013-08-07
四川千业环保产业发展有限公司
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  • Application Information

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Problems solved by technology

[0006] In addition, a large amount of waste water is produced in the production process of erythromycin, that is, the "erythromycin production waste water" described in this application, mainly contains organic matter in this waste water, has COD cr About 8000mg / L; BOD 5 About 3000mg / L; there is also a small amount of suspended solids and ammonia nitrogen, SS at 150mg / L; NH 3 -N - At 150mg / L, the pH is about 6. The current treatment method is mainly biological treatment. Due to the high concentration of organic matter and ammonia nitrogen, it is difficult to meet the discharge standards, and the organic matter has not been recycled, which is a waste of resources.
[0007] However, for the residual antibiotics and metabolic intermediates, the current treatment method is to carry out biological modification, that is, through inoculation of selective mixed bacterial flora and solid-state fermentation of compound enzyme preparations, after modification, they can be used as erythromycin and macrolides again. Antibiotic fermentation medium, such as the Chinese patent application with application number 2007100527715, this treatment method will eventually obtain erythromycin residues with antibiotics and metabolic intermediates, which cannot be harmlessly treated. The residual erythromycin and metabolic intermediates cannot be finally removed, and there are still ecological and health hazards
It is also reported that the residual erythromycin and its intermediate metabolites are separated and extracted, but this method is complicated in process and high in cost, and it is difficult to industrially process the bulky erythromycin residue

Method used

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  • Method for performing anaerobic innocent treatment on erythromycin mushroom residue and using erythromycin mushroom residue for producing organic fertilizer
  • Method for performing anaerobic innocent treatment on erythromycin mushroom residue and using erythromycin mushroom residue for producing organic fertilizer
  • Method for performing anaerobic innocent treatment on erythromycin mushroom residue and using erythromycin mushroom residue for producing organic fertilizer

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Effect test

Embodiment 1

[0024] The effective volume is 0.6m 3 In the reactor, 1 volume of erythromycin slag stock solution (water content 87%, wherein erythromycin residue is 316mg / L, organic matter content is about 58.6 g / L on average, mixed with 12 volumes of erythromycin production wastewater, Make the concentration of fungus residue 10 kg / m 3 , and then carry out continuous anaerobic reaction. During the anaerobic reaction, the pH value in the reaction system is 7.0, the reaction temperature is 28°C, and the residence time is 72h. After dehydration and drying, the moisture content was 16.1%, and the organic matter content was 45.1% on a dry basis, the pH value of the 10% aqueous solution was 7.1, and the residual erythromycin was 5.4 mg / kg. Take 119g of dehydrated and dried sediment (100g on a dry basis), then add 30g of humic acid (60% humus, 30% moisture), 20g bentonite (23% moisture content), mix and stir, granulate, and then dry to prepare Get organic fertilizer, the composition of gained o...

Embodiment 2

[0028] The effective volume is 0.6m 3 In the reactor, 1 volume of erythromycin slag stock solution (water content 87%, wherein erythromycin residue is 316mg / L, organic matter content is about 58 g / L on average, mixed with 5.5 volumes of erythromycin production wastewater, Make the concentration of fungus residue 20 kg / m 3 , and then carry out continuous anaerobic reaction. During the anaerobic reaction, the pH value in the reaction system is 6.5, the reaction temperature is 68°C, and the residence time is 36h. After the thing is dehydrated and dried, the moisture content is 15.5%. On a dry basis, the organic matter content is 45.8%. The pH value of the 10% aqueous solution is 6.8, and the residue of erythromycin is 6.1 mg / kg. After dehydration and drying, 118g of the precipitate (dried Basis weight 100g), then add humic acid (60% humus, 30% moisture) 35g, bentonite 15g (moisture content 23%), mix and stir, granulate, and then dry to make organic fertilizer, the composition of...

Embodiment 3

[0031] The effective volume is 0.6m 3 In the reactor, 1 volume of erythromycin slag stock solution (moisture content 87%, wherein erythromycin residue is 316mg / L, organic matter content is about 58 g / L on average, mixed with 8.67 volumes of erythromycin production wastewater, Make the concentration of fungus residue 15 kg / m 3, and then carry out continuous anaerobic reaction. During the anaerobic reaction, the pH value in the reaction system is 8.0, the reaction temperature is 55°C, and the residence time is 50h. After dehydration and drying, the moisture content was 17.2%, and the organic matter content was 44.5% on a dry basis, the pH value of the 10% aqueous solution was 7.8, and the residual erythromycin was 3.6 mg / kg. Take 120g of dehydrated and dried sediment (100g on a dry basis), then add 40g of humic acid (60% humus, 30% moisture), 10g bentonite (23% moisture content), mix and stir, granulate, and dry to prepare Get organic fertilizer, the composition of gained orga...

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Abstract

The invention discloses a method for performing anaerobic innocent treatment on erythromycin mushroom residue and using the erythromycin mushroom residue for producing an organic fertilizer. The method comprises the following steps of: mixing the erythromycin mushroom residue with erythromycin production wastewater, and controlling the concentration of the mushroom residue to be 10-20 kg / m<3>; then performing anaerobic reaction in a reaction system having a pH value of 6.5-8.0 for 36-72 hours at a temperature of 28-68 DEG C; after the reaction, precipitating, and treating the erythromycin mushroom residue by virtue of a biological anaerobic fermentation technology, reducing the erythromycin residue in the mushroom residue to be less than 10 mg / kg, and realizing the innocent treatment simultaneously; and then adding auxiliary materials, mixing, stirring, granulating, and drying to obtain the organic fertilizer, wherein the organic fertilizer is recycled to achieve the purpose of comprehensive utilization. The method is simple to operate and high in treatment efficiency, thus being capable of realizing large-scale treatment; and the method is remarkable in economic benefits and social benefits.

Description

technical field [0001] The invention relates to a waste treatment method in the pharmaceutical industry, in particular to a method for harmless treatment of erythromycin residue and used for producing organic fertilizer. Background technique [0002] Erythromycin residue is made from starch, soybean cake powder, etc., and the waste residue produced after adding erythromycin strains to produce erythromycin. In addition to containing a large amount of water, its main components are residual starch and starch sugar, Residual soybean cake powder, and a small amount of erythromycin residue, the concentration in the fungus residue stock solution is about (0.3-0.4) g / L, and the content converted to dry residue is about (2-4) g / kg. Judging from the raw material source of erythromycin slag, the heavy metals and other harmful elements and substances contained in the slag will not be high. It has been confirmed that the slag contains The amount of metal is much lower than the concentr...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 彭为光
Owner 四川千业环保产业发展有限公司
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