Multi-element composite water-soluble fertilizer solid powder prepared from antibiotic mushroom dregs and method and application thereof

A technology of antibiotic slag and multi-component compounding, applied in the fields of application, solid/semi-solid fertilizers, inorganic fertilizers, etc., can solve problems such as microbial resistance and threats to human health, reduce residues, improve fertilizer efficiency and fertilizer retention, and improve The effect of recovery

Inactive Publication Date: 2020-07-24
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is worth noting that antibiotic residues contain bacteriostatic residual antibiotics and their products, which may cause microbial resistance in the environment after entering the environment, and threaten human health through the spread of human pathogenic bacteria

Method used

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  • Multi-element composite water-soluble fertilizer solid powder prepared from antibiotic mushroom dregs and method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of method that utilizes antibiotic bacterium slag to prepare multi-element composite water-soluble fertilizer solid powder provided in this embodiment, comprises the following steps:

[0030] 1) Put the antibiotic slag with a water content of 80% into the reaction kettle, add a 6M HCl solution with a dry matter weight ratio of 8:1, and react at 100°C for 9 hours. During the reaction, the According to the directional hydrolysis of the antibiotic residue, in the obtained residue hydrolyzate, the amino acid yield is 30%, the phytostimulant-like substance is 5%, and the antibiotic residue is 1mg / L based on the dry weight of the residue;

[0031] 2) Under the conditions of 600mmHg vacuum degree and 30°C, carry out vacuum distillation for 2 hours, carry out hydrochloric acid recovery and reduce the volume of hydrolyzate to 80% of the original volume;

[0032] 3) Add activated carbon at a solid-to-liquid ratio of 1:100 for decolorization and impurity removal, and stir a...

Embodiment 2

[0041] A kind of method that utilizes antibiotic bacterium slag to prepare multi-element composite water-soluble fertilizer solid powder provided in this embodiment, comprises the following steps:

[0042] 1) Put the antibiotic residue with a water content of 87.5% into the reaction kettle, add a 6M HCl solution at a ratio of 12:1, and react at 110°C for 13 hours. During the reaction, the antibiotic residue is oriented Hydrolysis, in the obtained hydrolyzate of the fungus residue, the amino acid yield is 45%, the plant-like stimulant is 8%, and the antibiotic residue is 0.5mg / L based on the dry weight of the fungus residue;

[0043] 2) Under the conditions of 675mmHg vacuum degree and 40°C, carry out vacuum rectification for 2.5h, carry out hydrochloric acid recovery and reduce the volume of hydrolyzate, and the volume of hydrolyzate is reduced to 1 / 2 of the original volume;

[0044] 3) Add activated carbon at a solid-to-liquid ratio of 1.5:100 for decolorization and impurity ...

Embodiment 3

[0053] A kind of method that utilizes antibiotic bacterium slag to prepare multi-element composite water-soluble fertilizer solid powder provided in this embodiment, comprises the following steps:

[0054] 1) Put the antibiotic slag with a water content of 95% into the reaction kettle, add a 6M HCl solution with a dry matter weight ratio of 16:1, and react at 120°C for 16 hours. During the reaction, the Directional hydrolysis of antibiotic residues. In the obtained hydrolyzate of bacteria residues, the yield of amino acids is 45%, phytostimulants are 15%, and antibiotic residues are 0.2mg / L based on the dry weight of bacteria residues;

[0055] 2) Under the conditions of 750mmHg vacuum degree and 50°C, carry out vacuum distillation for 3h, carry out hydrochloric acid recovery and reduce the volume of hydrolyzate;

[0056] 3) Add activated carbon at a solid-to-liquid ratio of 2:100 for decolorization and impurity removal, and stir at 150 rpm for 30 minutes at 90°C to absorb sal...

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Abstract

The invention discloses multi-element composite water-soluble fertilizer solid powder prepared from antibiotic mushroom dregs and a method and application thereof. The method comprises the steps: putting the antibiotic mushroom dregs into a reaction kettle, and using hydrochloric acid for directional hydrolysis of the antibiotic mushroom dregs; carrying out reduced pressure distillation under vacuum to recover hydrochloric acid; adding activated carbon for decoloration and impurity removal, and absorbing salinity and insoluble organic matter; centrifugally collecting supernatant hydrolysis mother liquor; diluting the hydrolysis mother liquor under an acidic condition, and adding a solid trace element material for chelating; and adding calcium hydroxide to adjust the pH value, centrifugingto remove calcium sulfate precipitate and impurities, and volatilizing under negative pressure to prepare water-soluble fertilizer solid powder. The prepared multi-element water-soluble fertilizer solid powder can be applied to gardening, fruits and vegetables, farmlands, forests or urban landscaping lands and can degrade and remove residual antibiotics in the antibiotic fungi residues, avoid large fertilizer efficiency loss and unreasonable nutrition proportion in the degradation and removal process, improve the recovery efficiency of amino acids and reduce the loss of phytostimulant-like nutrient substances.

Description

technical field [0001] The invention belongs to the technical field of reutilization of antibiotic bacteria residue resources, and in particular relates to a method for preparing multi-component composite water-soluble fertilizer solid powder by using antibiotic bacteria residue. Background technique [0002] Microbial fermentation is the main production process of antibiotic raw materials. Antibiotic slag is the solid residue left after antibiotics are extracted during microbial fermentation, which contains incompletely extracted antibiotics, microbial metabolites, microbial mycelia and their fermentation media. of nutrients. It is worth noting that antibiotic residues contain bacteriostatic residual antibiotics and their products, which may cause microbial resistance in the environment after entering the environment, and threaten human health through the spread of human pathogenic bacteria. On the other hand, the organic matter content in the antibiotic bacteria residue (...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/60C05G3/80C05G5/10
CPCC05D3/02C05G3/00
Inventor 蔡辰戴晓虎刘惠玲
Owner TONGJI UNIV
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