A harmless extraction process for preparing agricultural biochemical fulvic acid from livestock and poultry manure

Abstract

The invention relates to a harmless extraction process for preparing agricultural biochemical fulvic acid from livestock and poultry manure. The process includes an acid-soluble extraction process of fulvic acid and a Fenton oxidation degradation process. The process of acid-soluble extraction of fulvic acid is to combine the acid-soluble extractant of group A containing 0.1%~2.5% ferrous sulfate, pH value ≤ 2, and 1%~2.5% sulfuric acid with fermented livestock and poultry manure at a ratio of 1:5~15 The proportion of the solution is mixed into a suspension solution, stirred at room temperature for 30min~60min, the dissolved fulvic acid contains a chelate of organic acid and ferrous ion; the Fenton oxidation degradation process is to extract the material through acid dissolution, and Value ≤ 2, containing 15% hydrogen peroxide and B group acid soluble extractant containing 1% ~ 2.5% sulfuric acid mixed, the control material contains 0.5% ~ 3.0% hydrogen peroxide, after the two groups of materials are mixed, chlorine peroxide is Under the catalysis of ferrous ions, the Fenton oxidation degradation reaction is generated, and the residual antibiotics, hormones, pesticides, and pathogenic bacteria, decay-causing bacteria, and parasite eggs are rapidly degraded to achieve the effect of harmless extraction.

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 fertilizer prepared from livestock and poultry manure, and specifically relates to the use of a Fenton reagent containing Fenton reagent when extracting fulvic acid from livestock and poultry manure fermentation Acid-soluble extractant, while extracting fulvic acid, carries out oxidative detoxification and oxidative disinfection of residual antibiotics, hormones, pesticides, pathogenic bacteria, rotting bacteria and parasite eggs. Background technique [0002] In recent years, with the improvement of people’s living standards in our country, the animal husbandry industry has developed rapidly. The scale of livestock farms has become larger and more intensified. The “livestock pollution” that uses livestock manure as the main source of pollution has been Aroused general public concern. The animal man...

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.