Method for producing amino acid fertilizer by means of waste water and meat and bone meal generated by livestock harmless treatment

A technology of harmless treatment, meat and bone meal, applied in sewage/sludge fertilizer, application, organic fertilizer, etc., can solve the problems of incomplete fermentation, uneven mixing, high protein content, and achieve the effect of reducing the effect of space repression

Active Publication Date: 2014-08-27
FOSHAN YANHUI BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the meat and bone meal obtained from sick and dead livestock and poultry through the chemical production method, as animal protein with unsafe factors, is prohibited by the country from entering the feed industry. Meat and bone meal is used as the raw material of fermented organic fertilizer, but the protein content of meat and bone meal is high. During the process of fermenting organic fertilizer, if it is mixed unevenly with organic matter such as straw and weeds, or when water is added unevenly, it is easy to cause putrefaction and stench. Harmful bacteria, and there will be fermentation failure or incomplete fermentation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The method for producing amino acid fertilizer using waste water and meat and bone meal produced by harmless treatment of dead livestock and poultry comprises the following steps:

[0021] 1. Enzymatic catalyzed hydrolysis: the meat and bone meal obtained from the harmless treatment of dead livestock and poultry is mixed evenly with organic wastewater in a ratio of 1:3, and 800 U / g of trypsin is added to the raw material, and the enzymolysis is carried out at pH 7.0 and 70°C for 12 hours;

[0022] 2. Acid hydrolysis: adjust the concentration of hydrochloric acid to 3 mol / L with hydrochloric acid from the enzymatic hydrolyzate processing industry, hydrolyze at 110°C for 8 hours, and the amino acid conversion rate is 61.5%, then cool down to 60°C, filter to remove solids, and use high The concentration of ammonia water is neutralized to PH3.0, and the free amino acid content is adjusted to 10%, the actual amino acid content is 10.22%, and the various amino acid contents ar...

Embodiment 2

[0024] The method for producing amino acid fertilizer using waste water and meat and bone meal produced by harmless treatment of dead livestock and poultry comprises the following steps:

[0025] 1. Enzymatic catalytic hydrolysis: the meat and bone meal obtained from the harmless treatment of dead livestock and poultry is mixed evenly with organic wastewater in a ratio of 1:4, and trypsin 1000U / g is added to the raw material, and the enzymolysis is carried out at pH 7.0 and 70°C for 10 hours;

[0026] 2. Acid hydrolysis: adjust the concentration of hydrochloric acid to 3 mol / L with hydrochloric acid from the enzymatically catalyzed hydrolyzate processing industry, hydrolyze at 110°C for 7 hours, and the amino acid conversion rate is 62.8%, then cool down to 60°C, filter to remove solids, and use high The concentration of ammonia water is neutralized to PH3.0, and the content of free amino acids is adjusted to more than 10%, the actual content: 10.51%, and the content of various...

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Abstract

The invention provides a method for producing an amino acid fertilizer by means of waste water and meat and bone meal generated by livestock harmless treatment, and particularly relates to a method for producing the amino acid fertilizer by hydrolyzing the organic waste water and the meat and bone meal generated due to harmless treatment of livestock died from diseases in a enzyme-acid two-step method. Firstly, the meat and bone meal and soluble protein in the organic waste water are hydrolyzed by means of trypsin, polypeptide generates small-molecule peptide chains through enzymolysis, the shielding function of side-chain radicals on peptide is weakened, the space repression effect between the side-chain radicals and the peptide is reduced, and then complete hydrolysis is carried out with dilute hydrochloric acid. The method has the advantages that the soluble protein and amino acid in the organic waste water generated due to harmless treatment of the livestock died from the diseases are fully used, and waste is turned to wealth; the hydrolyzed meat and bone meal generates a large amount of calcium, phosphorus and microelements and is chelated with the free amino acid, and addition of extra microelements, calcium and phosphorus is reduced; besides, the content of the amino acid generated by the meat and bone meal after hydrolysis is more comprehensive and balanced.

Description

technical field [0001] The invention relates to a method for producing amino acid fertilizer by using waste water from harmless treatment of livestock and poultry and meat and bone meal, in particular to a method for hydrolyzing organic waste water and meat produced by harmless treatment of sick and dead livestock and poultry by using an enzyme-acid two-step method. The invention relates to a method for producing amino acid fertilizer from bone powder, which belongs to the technical field of fertilizers. Background technique [0002] With the occurrence of the dead pig incident in the Huangpu River in 2013, the Ministry of Agriculture has introduced a pilot project for the harmless treatment of sick and dead livestock and poultry. It has high efficiency and high availability in the process of treatment, and it has been rapidly promoted in China. The chemical method refers to putting dead animal carcasses into the hydrolysis reaction tank, and under the action of high tempera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F7/00C05F1/00C05G1/00
CPCY02A40/20
Inventor 蒋常德胡艳晖
Owner FOSHAN YANHUI BIOTECH CO LTD
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