CN112321334A - Liquid amino acid fertilizer produced by using animal protein and preparation method thereof - Google Patents
Liquid amino acid fertilizer produced by using animal protein and preparation method thereof Download PDFInfo
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- CN112321334A CN112321334A CN202011066187.7A CN202011066187A CN112321334A CN 112321334 A CN112321334 A CN 112321334A CN 202011066187 A CN202011066187 A CN 202011066187A CN 112321334 A CN112321334 A CN 112321334A
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 48
- 150000001413 amino acids Chemical class 0.000 title claims abstract description 46
- 239000007788 liquid Substances 0.000 title claims abstract description 36
- 235000021120 animal protein Nutrition 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 241001465754 Metazoa Species 0.000 claims abstract description 42
- 239000000413 hydrolysate Substances 0.000 claims abstract description 23
- 235000021190 leftovers Nutrition 0.000 claims abstract description 19
- 239000003513 alkali Substances 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 230000007062 hydrolysis Effects 0.000 claims abstract description 7
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 15
- 244000144972 livestock Species 0.000 claims description 13
- 235000013372 meat Nutrition 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 11
- 244000144977 poultry Species 0.000 claims description 11
- 241000251468 Actinopterygii Species 0.000 claims description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- 241000238557 Decapoda Species 0.000 claims description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 3
- 241000283690 Bos taurus Species 0.000 claims description 2
- 241000287828 Gallus gallus Species 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 241000272525 Anas platyrhynchos Species 0.000 claims 1
- 241000272814 Anser sp. Species 0.000 claims 1
- 241000282898 Sus scrofa Species 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 241000700605 Viruses Species 0.000 abstract description 6
- 241000894006 Bacteria Species 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000000354 decomposition reaction Methods 0.000 abstract description 2
- 235000013594 poultry meat Nutrition 0.000 description 10
- 239000010410 layer Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 238000005485 electric heating Methods 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- 239000003895 organic fertilizer Substances 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 239000010868 animal carcass Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000000855 fermentation Methods 0.000 description 3
- 230000004151 fermentation Effects 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 235000016709 nutrition Nutrition 0.000 description 3
- 230000035764 nutrition Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 description 3
- 241000272517 Anseriformes Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009360 aquaculture Methods 0.000 description 2
- 244000144974 aquaculture Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 235000013619 trace mineral Nutrition 0.000 description 2
- 239000011573 trace mineral Substances 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 241000143060 Americamysis bahia Species 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- 108010046334 Urease Proteins 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 239000010828 animal waste Substances 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 235000013330 chicken meat Nutrition 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 210000000003 hoof Anatomy 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 210000003491 skin Anatomy 0.000 description 1
- 238000003307 slaughter Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C11/00—Other nitrogenous fertilisers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F1/00—Fertilisers made from animal corpses, or parts thereof
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F1/00—Fertilisers made from animal corpses, or parts thereof
- C05F1/002—Fertilisers made from animal corpses, or parts thereof from fish or from fish-wastes
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F1/00—Fertilisers made from animal corpses, or parts thereof
- C05F1/005—Fertilisers made from animal corpses, or parts thereof from meat-wastes or from other wastes of animal origin, e.g. skins, hair, hoofs, feathers, blood
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a liquid amino acid fertilizer produced by using animal protein and a preparation method thereof, wherein the preparation method comprises the following steps: 1) mincing animals and/or animal leftovers to be treated to obtain minced materials; 2) heating and stirring the animals and/or the animal leftovers and alkali liquor at 50-90 ℃, mixing to ensure that the pH is more than 13, standing for layering after hydrolysis, and taking out the hydrolysate for later use; 3) and (3) adjusting the pH value of the hydrolysate to 8-9, adjusting the temperature to 60-90 ℃, and preserving the heat for 12-72 hours to obtain the amino acid fertilizer. Realizes the harmless treatment of animals and/or animal leftovers, fully utilizes waste resources, and completes the virtuous cycle of ecological agriculture while obtaining economic benefit. In the process of preparing the liquid amino acid fertilizer, a leaven is not required to be added additionally, and the functions of killing virus and harmful bacteria and eliminating odor are achieved by adjusting the pH value and the temperature in the decomposition process.
Description
Technical Field
The invention relates to the technical field of organic fertilizers, in particular to a liquid amino acid fertilizer produced by using animal protein and a preparation method thereof.
Background
In the feeding process of animals, the animals die due to climate environmental factors or infectious diseases, and the generated animal carcasses or waste viscera, skins, bones or hooves and the like generated by slaughtering need to be subjected to subsequent treatment, so that the environment or the animals are prevented from being influenced. The existing animal carcass treatment comprises deep burying, burning, high-temperature treatment and the like. The problems that the site is difficult to select, the underground water is polluted by the burying liquid, the cost is high and the like exist in deep burying; residues and non-combustible substances generated by incineration need to be additionally treated, and gas discharged by incineration needs to meet the environmental protection regulations, otherwise, secondary pollution is easily caused, and the running cost of the incinerator is higher; the high temperature treatment is to decompose waste into reusable resources such as fats and proteins, but the treatment process is likely to cause problems of offensive odor and waste water, and is likely to cause environmental pollution in the vicinity.
In the prior art, animal carcasses and animal leftovers are recycled to prepare a biological organic fertilizer, the biological organic fertilizer takes livestock and poultry manure, municipal domestic garbage, crop straws, agricultural and sideline products and organic wastes generated by food processing as raw materials, is matched with a multifunctional fermentation strain agent to quickly deodorize, decompose and dehydrate the raw materials, and is added with a functional microbial agent to prepare the organic fertilizer containing a certain amount of functional microorganisms. However, the common bio-organic fertilizer has some defects: if the composting temperature is low, harmful bacteria and viruses, especially excrement of poultry and livestock can not be killed thoroughly, if the composting temperature is not treated by high-temperature fermentation or the fermentation treatment is incomplete, seedling burning can be caused due to the fact that the excrement of the poultry and the livestock contains a large amount of urease, germs and viruses which can not be completely killed can pollute the environment and spread diseases, even soil insect pests can be increased after long-term use, and serious adverse effects are brought to agricultural production.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a liquid amino acid fertilizer produced by using animal protein and a preparation method thereof, the liquid amino acid fertilizer is prepared by hydrolyzing waste animals and/or animal leftovers as raw materials, a zymophyte agent is not required to be added, harmful bacteria and viruses can be effectively killed, and the obtained liquid amino acid fertilizer can directly provide crop nutrition and is beneficial to the absorption of crops.
The purpose of the invention is realized by adopting the following technical scheme:
a method for producing a liquid amino acid fertilizer from animal protein, comprising the steps of:
1) mincing animals and/or animal leftovers to be treated to obtain minced materials;
2) heating and stirring the animals and/or the animal leftovers and alkali liquor at 50-90 ℃, mixing to ensure that the pH is more than 13, standing for layering after hydrolysis, and taking out the hydrolysate for later use;
3) and (3) adjusting the pH value of the hydrolysate to 8-9, adjusting the temperature to 60-90 ℃, and preserving the heat for 12-72 hours to obtain the amino acid fertilizer.
Specifically, the size of the crushed material is preferably 3-10 cm. The invention can hydrolyze at 50-99 ℃ without pressurization, the hydrolysis speed of the pulped materials is accelerated along with the rise of the concentration of the alkali liquor and the heating temperature, and the safety problem caused by the splashing of the boiling liquid and the odor emission problem caused by the boiling evaporation can be avoided at 50-99 ℃. The hydrolysate is organic liquid with polypeptide as main component and has pH value over 13 to inactivate bacteria and virus completely.
Further, in the step 1), the animals are one or more of pigs, chickens, ducks, geese, cattle, fish and shrimps; the animal leftover is one or more of livestock and poultry offal, hair, meat bits, meat skin, meat residue, head, limbs, meat in excess period, unprocessed livestock skin offal and livestock and carcass.
And further, in the step 2), sodium hydroxide and/or potassium hydroxide solution with the concentration of 1-25% is selected to adjust the pH. Most preferred is potassium hydroxide solution because of K in solution+Is one of the major elements in the organic liquid fertilizer, and can provide potassium element nutrition for crops.
Further, in step 2), the stirring rate was 15 rpm.
And furthermore, in the step 2), the heating time is 1-5 h.
Specifically, the heat conducting oil in the interlayer of the electric heating container is selected to heat the crushed objects, and an alkali corrosion resistant coating or stainless steel is arranged in the electric heating container. The whip solids must not exceed 1/2 of the container volume.
Further, in the step 2), the solid-liquid ratio of the animals and/or the animal leftovers to the alkali liquor is 1: 2 to 8.
And further, in the step 2), the hydrolysate is pumped to another container by an electric pump for processing.
Further, in the step 2), standing to obtain upper-layer oil, middle-layer hydrolysate and bottom-layer solid, separating oil (triglyceride) by an oil scraper, separating hydrolysate from solid, and collecting solid for later use.
Further, in the step 3), one or more of acetic acid, sulfuric acid, dilute nitric acid, dilute hydrochloric acid and phosphoric acid is adopted to adjust the pH. Preferably, phosphoric acid is adopted to adjust the pH value, so that the phosphorus element content of the liquid amino acid fertilizer can be effectively increased.
An amino acid fertilizer is prepared by the method for producing the liquid amino acid fertilizer by using the animal protein.
Compared with the prior art, the invention has the beneficial effects that:
realizes the harmless treatment of animals and/or animal leftovers, fully utilizes waste resources, and completes the virtuous cycle of ecological agriculture while obtaining economic benefit. In the process of preparing the liquid amino acid fertilizer, a leaven is not required to be added additionally, and the functions of killing virus and harmful bacteria and eliminating odor are achieved by adjusting the pH value and the temperature in the decomposition process.
Detailed Description
The present invention is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.
Example 1
A method for producing a liquid amino acid fertilizer from animal protein, comprising the steps of:
1) crushing 1000g of animals and/or animal leftovers to be treated to obtain crushed materials with the size of 3 cm; in this embodiment, the raw materials to be processed specifically include, but are not limited to: carcasses of livestock and poultry, waste of slaughterhouses, fish and poultry waste in meat and vegetable markets, aquaculture, processed fish, shrimp and waste, low-value fish and shrimp caught in the ocean, livestock and poultry killed by epidemic situations and frozen meat fish collected by government law enforcement agencies.
2) Heating and mixing the animal and/or animal leftovers and alkali liquor at 50 ℃ to enable the pH value to be more than 13, preserving heat, stirring at the rotation speed of 15rpm for 1-5 hours, standing for layering after hydrolysis, standing to obtain upper-layer oil, middle-layer hydrolysate and bottom-layer solid, separating the oil (triglyceride) by an oil scraper, separating the hydrolysate from the solid, collecting the solid for later use, and pumping the hydrolysate to another container for treatment; wherein the alkali liquor is sodium hydroxide solution with the concentration of 2%. The solid-liquid ratio of the animals and/or the animal leftovers to the alkali liquor is 1: 2.
3) and (3) adding hydrochloric acid with the concentration of 98% to adjust the pH value of the hydrolysate to 8, adjusting the temperature to 60 ℃, and preserving the temperature for 72 hours to obtain the amino acid fertilizer.
Specifically, the heat conducting oil in the interlayer of the electric heating container is selected to heat the crushed objects, and an alkali corrosion resistant coating is arranged in the electric heating container. The whip solids must not exceed 1/2 of the container volume.
Example 2
A method for producing a liquid amino acid fertilizer from animal protein, comprising the steps of:
1) mincing 1000g of animals and/or animal leftovers to be treated to obtain a minced material with the size of 10 cm; in this embodiment, the raw materials to be processed specifically include, but are not limited to: carcasses of livestock and poultry, waste of slaughterhouses, fish and poultry waste in meat and vegetable markets, aquaculture, processed fish, shrimp and waste, low-value fish and shrimp caught in the ocean, livestock and poultry killed by epidemic situations and frozen meat fish collected by government law enforcement agencies.
2) Heating and mixing animal and/or animal leftovers and alkali liquor at 90 ℃ to enable the pH value to be 14, keeping the temperature, stirring at the rotation speed of 15rpm for 1h, standing for layering after hydrolysis, standing to obtain upper-layer oil, middle-layer hydrolysate and bottom-layer solid, separating the oil (triglyceride) from the hydrolysate by an oil scraper, collecting the solid for later use after separating the hydrolysate from the solid, and pumping the hydrolysate to another container for treatment by an electric pump; wherein the alkali liquor is 25% potassium hydroxide solution. The solid-liquid ratio of the animals and/or the animal leftovers to the alkali liquor is 1: 2.
3) adding 98% phosphoric acid to adjust the pH of the hydrolysate to 9, adjusting the temperature to 90 ℃, and preserving the temperature for 72 hours to obtain the amino acid fertilizer.
Specifically, the heat conducting oil in the interlayer of the electric heating container is selected to heat the crushed objects, and an alkali corrosion resistant coating is arranged in the electric heating container. The whip solids must not exceed 1/2 of the container volume.
Comparative example 1
The commercially available amino acid fertilizer of comparative example 1 is amino acid-containing water-soluble fertilizer Y2# which is newly applied to bio-fertilizer limited. The fertilizer of comparative example 1 was subjected to a high temperature hydrolysis process at 60 ℃ or higher.
Performance testing
Firstly, the liquid amino acid fertilizers obtained in examples 1-2 and the amino acid-containing water-soluble fertilizer in comparative example 1 are tested for total nitrogen content, trace element content, organic matters, free amino acids and the like.
TABLE 1 one of the test results of the liquid amino acid fertilizers of examples 1 to 2
TABLE 2 test results of the liquid amino acid fertilizers of examples 1 to 2
As can be seen from the data in Table 1, the phosphorus content and the potassium content of example 2 are higher than those of example 1, because the potassium hydroxide and the phosphoric acid solution are selected to adjust the pH value in example 2, the potassium content and the phosphorus content of the amino acid fertilizer can be effectively improved. The total nitrogen content, the phosphorus content, the potassium content and the trace element content of the amino acid fertilizers in the examples 1-2 are higher than those in the comparative example 1, so that the amino acid fertilizers in the examples 1-2 have more nutrient components than those in the comparative example 1, and the absorption of crops and the improvement of quality are facilitated.
As can be seen from the data in Table 2, the content of free amino acids in examples 1 to 2 was significantly higher than that in the amino acid-containing water-soluble fertilizer of comparative example 1. The reason is that the fertilizer of the comparative example 1 is processed at high temperature in the production process, so that a large amount of amino acid is lost in the processing process, and the quality and the use effect of the fertilizer are seriously influenced. The liquid amino acid fertilizer has high free amino acid content and rich nutrition, and can meet the requirement of high yield of crops on nutrients.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. A method for producing liquid amino acid fertilizer by using animal protein is characterized by comprising the following steps:
1) mincing animals and/or animal leftovers to be treated to obtain minced materials;
2) heating and stirring the animals and/or the animal leftovers and alkali liquor at 50-90 ℃, mixing to ensure that the pH is more than 13, standing for layering after hydrolysis, and taking out the hydrolysate for later use;
3) and (3) adjusting the pH value of the hydrolysate to 8-9, adjusting the temperature to 60-90 ℃, and preserving the heat for 12-72 hours to obtain the amino acid fertilizer.
2. The method for producing a liquid amino acid fertilizer using animal protein according to claim 1, wherein in the step 1), the animal is one or more selected from the group consisting of swine, chicken, duck, goose, cow, fish and shrimp; the animal leftover is one or more of livestock and poultry offal, hair, meat bits, meat skin, meat residue, head, limbs, meat in excess period, unprocessed livestock skin offal and livestock and carcass.
3. The method for producing the liquid amino acid fertilizer by using the animal protein according to claim 1, wherein in the step 2), the pH is adjusted by using a 1-25% sodium hydroxide and/or potassium hydroxide solution.
4. The method for producing a liquid amino acid fertilizer using animal protein according to claim 1, wherein in the step 2), the stirring rate is 15 rpm.
5. The method for producing a liquid amino acid fertilizer using animal protein according to claim 1, wherein the heating time in the step 2) is 1 to 5 hours.
6. The method for producing a liquid amino acid fertilizer using animal protein according to claim 1, wherein in the step 2), the solid-to-liquid ratio of the animal and/or animal offal to the lye is 1: 2 to 8.
7. The method for producing a liquid amino acid fertilizer using animal protein according to claim 1, wherein in the step 2), the hydrolysate is treated by pumping the hydrolysate to another container by an electric pump.
8. The method for producing a liquid amino acid fertilizer using animal protein according to claim 1, wherein in the step 2), the oil is separated by an oil scraper by obtaining the upper layer oil, the middle layer hydrolysate and the bottom layer solid by standing, and the solid is collected for later use after the hydrolysate and the solid are separated.
9. The method for producing a liquid amino acid fertilizer using animal protein according to claim 1, wherein in the step 3), one or more of acetic acid, sulfuric acid, dilute nitric acid, dilute hydrochloric acid and phosphoric acid is used to adjust the pH.
10. An amino acid fertilizer, characterized in that it is produced by the method for producing a liquid amino acid fertilizer from an animal protein according to any one of claims 1 to 9.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582778A (en) * | 2020-04-30 | 2021-11-02 | 农丰宝集团有限公司 | Preparation method for producing high organic nitrogen liquid organic fertilizer by using livestock and poultry died of diseases |
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| CN110407623A (en) * | 2019-07-23 | 2019-11-05 | 武汉益锦祥生物环保有限公司 | A method of high-valued fertilizer is prepared based on dead livestock and poultry harmless treatment |
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2020
- 2020-09-30 CN CN202011066187.7A patent/CN112321334A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276303A (en) * | 2011-06-16 | 2011-12-14 | 沈保华 | Plant nutrient |
| CN106588340A (en) * | 2016-12-13 | 2017-04-26 | 华中农业大学 | Preparation method of low-salt high-concentration amino acid liquid fertilizer |
| CN109534857A (en) * | 2018-11-09 | 2019-03-29 | 河南正达环保科技有限公司 | Compound amino acid liquid fertilizer |
| CN110407623A (en) * | 2019-07-23 | 2019-11-05 | 武汉益锦祥生物环保有限公司 | A method of high-valued fertilizer is prepared based on dead livestock and poultry harmless treatment |
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| CN113582778A (en) * | 2020-04-30 | 2021-11-02 | 农丰宝集团有限公司 | Preparation method for producing high organic nitrogen liquid organic fertilizer by using livestock and poultry died of diseases |
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