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Harmless extraction process for poultry manure prepared agricultural biochemical fulvic acid

A biochemical fulvic acid, livestock and poultry manure technology, applied in the fields of application, agriculture, organic chemistry, etc., to achieve the effect of strong oxidation, sterilization and disinfection, and prevent the effect of deodorization and deterioration

Active Publication Date: 2012-12-12
FUJIAN CHAODA GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] Therefore, the harmless extraction technology for removing antibiotics and other hazards from fulvic acid prepared from livestock and poultry manure is still blank.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] (1) Take the livestock and poultry manure materials fermented by microbial inoculants, use group A acid-soluble extractant containing 2.5% ferrous sulfate and 1.5% dilute sulfuric acid (control pH value ≤ 2), according to the solid-liquid ratio of 1:6 The proportion of fermented and decomposed livestock and poultry manure is formulated into a suspended solid-liquid mixture.

[0067] Under the condition of room temperature, the acid solution was stirred for 30 minutes, and the pH value of the suspended solid-liquid mixture was kept stable at ≤2 during the extraction process. The fulvic acid is dissolved from the suspended solid-liquid mixture, and the dissolved part of the fulvic acid is chelated with the ferrous ions in the acid-soluble extractant of group A, and the generated ferrous humic acid ions are evenly dispersed in the acid. of fulvic acid extract.

[0068] (2) Using an acidic aqueous solution containing 1.5% sulfuric acid, mix 30% hydrogen peroxide into a gro...

Embodiment 2

[0073] (1) Take the livestock and poultry manure materials fermented by microbial inoculants, and use group A acid-soluble extractant containing 2.0% ferrous sulfate and 1.5% sulfuric acid (control pH value ≤ 2), according to the solid-liquid ratio of 1:8. Proportion, the fermented and decomposed livestock and poultry manure material is prepared into a suspended solid-liquid mixture material.

[0074] Under the condition of room temperature, the acid solution was stirred for 30 minutes, and the pH value of the suspended solid-liquid mixture was kept stable at ≤2 during the extraction process. The fulvic acid is dissolved from the suspended solid-liquid mixture, and the dissolved part of the fulvic acid is chelated with the ferrous ions in the acid-soluble extractant of group A, and the generated ferrous humic acid ions are evenly dispersed in the acid. of fulvic acid extract.

[0075](2) Using an acidic aqueous solution containing 1.5% sulfuric acid, mix 30% hydrogen peroxide...

Embodiment 3

[0080] (1) Take the livestock and poultry manure materials fermented by microbial inoculants, and use group A acid-soluble extractant containing 1.5% ferrous sulfate and 1.5% sulfuric acid (control pH value ≤ 2), according to the solid-liquid ratio of 1:10. Proportion, the fermented and decomposed livestock and poultry manure material is prepared into a suspended solid-liquid mixture material.

[0081] Under the condition of room temperature, the acid solution was stirred for 30 minutes, and the pH value of the suspended solid-liquid mixture was kept stable at ≤2 during the extraction process. The fulvic acid is dissolved from the suspended solid-liquid mixture, and the dissolved part of the fulvic acid is chelated with the ferrous ions in the acid-soluble extractant of group A, and the generated ferrous humic acid ions are evenly dispersed in the acid. of fulvic acid extract.

[0082] (2) Using an acidic aqueous solution containing 1.5% sulfuric acid, mix 30% hydrogen peroxi...

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Abstract

The invention relates to a harmless extraction process for poultry manure prepared agricultural biochemical fulvic acid. The process includes an acid dissolution extraction technology of fulvic acid and a Fenton oxidative degradation technology. The acid dissolution extraction technology of fulvic acid consists of: making a suspending solution from a group A acid dissolution extracting agent that has a pH value of less than or equal to 2 and contains 0.1%-2.5% of ferrous sulfate as well as 1%-2.5% of sulfuric acid and fermented poultry manure in a ratio of 1:5-15, and conducting stirring for 30min-60min at room temperature, thus obtaining dissolved fulvic acid containing a chelate of an organic acid and ferrous ions. The Fenton oxidative degradation technology consists of: mixing a material subjected to the acid dissolution extraction with a group B acid dissolution extracting agent that has a pH value of less than or equal to 2 and contains 15% of hydrogen peroxide and 1%-2.5% of sulfuric acid, controlling the content of hydrogen peroxide in the material at 0.5%-3.0%, when the two groups of materials are mixed, catalyzing the hydrogen peroxide with the ferrous ions, thus generating a Fenton oxidative degradation reaction. Therefore, residual antibiotics, hormones, pesticides and pathogenic bacteria, rot-causing bacteria and helminth eggs can be rapidly degraded and their hazards can be eliminated, thereby reaching a harmless extraction effect.

Description

technical field [0001] The invention belongs to the technical field of agricultural biochemical fulvic acid extraction, and also belongs to the field of harmless treatment of organic fertilizers prepared from livestock and poultry manure, and specifically relates to the use of Fenton's reagent when extracting fulvic acid from fermented livestock and poultry manure. Acid-soluble extractant, while extracting fulvic acid, it performs harmless treatment of oxidative detoxification and oxidative disinfection on residual antibiotics, hormones, pesticides, pathogenic bacteria, saprophytic bacteria and parasite eggs. Background technique [0002] In recent years, with the improvement of people's living standards in our country, animal husbandry has developed rapidly, and the scale of livestock farms has become larger and larger, and the degree of intensification has become higher and higher. arouse general public concern. Livestock and poultry manure itself is a good biomass resou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08H99/00C07G99/00C05G3/00
Inventor 罗立津徐福乐翁莹冰林秀张美娟翁仁发
Owner FUJIAN CHAODA GROUP
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