CN113185334A - Method for preparing organic-inorganic compound fertilizer by quickly decomposing livestock and poultry manure - Google Patents
Method for preparing organic-inorganic compound fertilizer by quickly decomposing livestock and poultry manure Download PDFInfo
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- CN113185334A CN113185334A CN202110547210.2A CN202110547210A CN113185334A CN 113185334 A CN113185334 A CN 113185334A CN 202110547210 A CN202110547210 A CN 202110547210A CN 113185334 A CN113185334 A CN 113185334A
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- 239000010871 livestock manure Substances 0.000 title claims abstract description 82
- 210000003608 fece Anatomy 0.000 title claims abstract description 76
- 244000144972 livestock Species 0.000 title claims abstract description 75
- 244000144977 poultry Species 0.000 title claims abstract description 75
- 239000003337 fertilizer Substances 0.000 title claims abstract description 54
- 229910010272 inorganic material Inorganic materials 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 35
- 229960000892 attapulgite Drugs 0.000 claims abstract description 32
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 32
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 19
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 18
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000010894 electron beam technology Methods 0.000 claims abstract description 11
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004202 carbamide Substances 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 9
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims abstract description 9
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 claims abstract description 9
- 239000006012 monoammonium phosphate Substances 0.000 claims abstract description 9
- 235000019837 monoammonium phosphate Nutrition 0.000 claims abstract description 9
- 235000019691 monocalcium phosphate Nutrition 0.000 claims abstract description 9
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 9
- 239000001506 calcium phosphate Substances 0.000 claims abstract description 7
- 230000001678 irradiating effect Effects 0.000 claims abstract description 7
- 229910000150 monocalcium phosphate Inorganic materials 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 229940062672 calcium dihydrogen phosphate Drugs 0.000 claims description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 claims description 2
- 239000003895 organic fertilizer Substances 0.000 abstract description 4
- PUKLDDOGISCFCP-JSQCKWNTSA-N 21-Deoxycortisone Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@@](C(=O)C)(O)[C@@]1(C)CC2=O PUKLDDOGISCFCP-JSQCKWNTSA-N 0.000 abstract description 2
- 241000894006 Bacteria Species 0.000 abstract description 2
- FCYKAQOGGFGCMD-UHFFFAOYSA-N Fulvic acid Natural products O1C2=CC(O)=C(O)C(C(O)=O)=C2C(=O)C2=C1CC(C)(O)OC2 FCYKAQOGGFGCMD-UHFFFAOYSA-N 0.000 abstract description 2
- 239000003242 anti bacterial agent Substances 0.000 abstract description 2
- 229940088710 antibiotic agent Drugs 0.000 abstract description 2
- 239000002509 fulvic acid Substances 0.000 abstract description 2
- 229940095100 fulvic acid Drugs 0.000 abstract description 2
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000002956 ash Substances 0.000 abstract 1
- 239000002689 soil Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 235000013311 vegetables Nutrition 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 238000009395 breeding Methods 0.000 description 4
- 230000001488 breeding effect Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 235000015097 nutrients Nutrition 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 238000003971 tillage Methods 0.000 description 4
- 238000012271 agricultural production Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 241000168525 Haematococcus Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 229930002875 chlorophyll Natural products 0.000 description 1
- 235000019804 chlorophyll Nutrition 0.000 description 1
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/04—Double-superphosphate; Triple-superphosphate; Other fertilisers based essentially on monocalcium phosphate
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/10—Addition or removal of substances other than water or air to or from the material during the treatment
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/80—Separation, elimination or disposal of harmful substances during the treatment
-
- 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
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Pest Control & Pesticides (AREA)
- Toxicology (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a method for preparing an organic-inorganic compound fertilizer by quickly decomposing livestock and poultry manure. Mixing the livestock and poultry manure with attapulgite, and fully mixing to obtain a livestock and poultry manure/attapulgite mixture; irradiating the livestock and poultry manure/attapulgite mixture by adopting electron beams to obtain a modified livestock and poultry manure/attapulgite mixture; mixing aluminum ash, monocalcium phosphate and sodium carbonate, mixing with the livestock manure/attapulgite mixture and hydrogen peroxide, heating and cooling to obtain the livestock manure decomposed material; mixing the livestock and poultry manure decomposed material, monoammonium phosphate and urea, and granulating to obtain the organic-inorganic compound fertilizer. The invention takes the livestock and poultry manure as the raw material, the livestock and poultry manure is converted into the organic fertilizer rich in fulvic acid, heavy metals in the organic fertilizer are effectively passivated, harmful bacteria are killed, antibiotics are degraded, and a certain amount of inorganic fertilizer is added to prepare the organic-inorganic compound fertilizer, thereby realizing the reduction, harmlessness and recycling of the livestock and poultry manure.
Description
Technical Field
The invention relates to the technical field of agricultural fertilizers, in particular to the technical field of preparing an organic-inorganic compound fertilizer by quickly decomposing livestock and poultry manure.
Background
The insufficient resource utilization of the livestock and poultry manure and the excessive application of the chemical fertilizer are main causes of agricultural non-point source pollution in China, and the harmless treatment and resource utilization of the livestock and poultry manure are problems which are urgently needed to be solved at present.
According to the second national pollution source census official gazette, the discharge amount of the agricultural chemical oxygen demand is 1067.13 ten thousand tons (accounting for 49.8 percent of the national discharge total amount), wherein the discharge amount of the chemical oxygen demand of livestock and poultry breeding is 1000.53 ten thousand tons (accounting for 93.8 percent), so that the livestock and poultry breeding is a main source of the discharge amount of the agricultural pollution source. The pollution prevention and control work of livestock and poultry breeding in China starts late, the problems that the manure treatment facilities of large-scale farms, particularly medium and small-scale farms, are simple, the returned manure is not normally used and the like still exist, the current situations that the pollution treatment capacity of the farms below the scale is generally deviated and the supervision is weak are not effectively improved, and the safe and efficient use of the manure of livestock and poultry is still long-way.
At present, in the agricultural planting industry production of China, the using amount of urea, compound fertilizer and other fertilizers is large, the fertilizer proportion is unreasonable, and excessive fertilization causes fertilizer loss and soil degradation. The total nitrogen loss of the planting industry in China is up to 71.95 ten thousand tons, and accounts for 50.9 percent of the total nitrogen emission of agricultural sources; the total phosphorus loss of the planting industry is 7.62 million tons, which accounts for 35.9 percent of the total phosphorus emission of the agricultural source. The loss of a large amount of nitrogen and phosphorus will aggravate the eutrophication of the water body.
The livestock and poultry manure contains a large amount of organic matters, nitrogen, phosphorus, potassium and trace elements, is one of important organic fertilizer sources for agricultural production, can improve the physical and chemical properties of soil, increase the aggregate structure effect of the soil, enhance the permeability and permeability of the soil, increase the content of organic matters in the soil, maintain the water storage capacity of a plough layer and realize the virtuous cycle and sustainable development of agricultural production after being quickly decomposed. The method can well solve the problem of recycling the feces for livestock and poultry breeding, reduce the pollution to the environment and agricultural products, effectively combine agricultural production with environmental protection, and play a great role in solving agricultural non-point source pollution.
Disclosure of Invention
The invention aims at the problems of insufficient resource utilization of livestock and poultry manure and environmental pollution caused by excessive application of chemical fertilizer, provides a quick decomposition method of livestock and poultry manure with low cost and easy operation, and simultaneously prepares a high-efficiency compound fertilizer, thereby realizing the resource utilization of livestock and poultry manure, reducing fertilizer quantity, increasing efficiency and increasing crop yield, and providing effective technical support for the prevention and treatment of agricultural non-point source pollution in China.
A method for preparing an organic-inorganic compound fertilizer by quickly decomposing livestock and poultry manure comprises the following steps:
step 1, mixing livestock and poultry manure and attapulgite according to the weight ratio of (7-9) to (1-2), stirring for 3-6 hours at 20-60 ℃, and fully mixing to obtain a livestock and poultry manure/attapulgite mixture;
step 4, mixing the product obtained in the step 2 and the product obtained in the step 3 with hydrogen peroxide according to the weight ratio of (70-90) to (6-9) to (1-2), stirring for 2-3 hours, heating the materials to 70-90 ℃, and cooling to obtain the livestock and poultry manure decomposed materials;
and 5, mixing the livestock and poultry manure decomposed material obtained in the step 4, monoammonium phosphate and urea according to the weight ratio of (5-7) to (3-5) to (1-2), and granulating to obtain the organic-inorganic compound fertilizer.
Preferably, the water content of the livestock manure in step 1 of the present invention is 60-80%.
Preferably, the attapulgite in the step 1 of the invention is 200-400 mesh, colloidal grade.
Preferably, the energy of the electron beam in step 2 of the present invention is 10 to 20 MeV, and the dose of the electron beam is 10 to 40 kGy.
Preferably, the aluminum ash in step 3 of the present invention has a mesh size of 50 to 300.
Preferably, the calcium dihydrogen phosphate in step 3 of the present invention is 50-300 mesh.
Preferably, the sodium carbonate in step 3 of the present invention is 20-50 mesh.
Preferably, the decomposed livestock and poultry manure in step 5 of the invention has 50-300 meshes.
Preferably, the monoammonium phosphate in step 5 of the present invention is 50-100 mesh.
Preferably, the urea in step 5 of the present invention is 50-100 mesh.
The invention provides a method for preparing an organic-inorganic compound fertilizer by quickly decomposing livestock and poultry manure. The principle is as follows: the livestock and poultry manure is used as a raw material, the swelling property of the livestock and poultry manure is improved by modifying the attapulgite, then the livestock and poultry manure is quickly decomposed by hydrogen peroxide catalytic reaction, the livestock and poultry manure is converted into an organic fertilizer rich in fulvic acid, heavy metals are effectively passivated, harmful bacteria are killed, antibiotics are degraded, and a certain amount of inorganic fertilizer is added to prepare the organic-inorganic compound fertilizer. The method realizes the reduction, harmlessness and reclamation of the livestock and poultry manure, and has wide application prospect.
Drawings
FIG. 1 is a graph of the growth effect of three fertilizers on Shanghai Qing.
FIG. 2 is a graph comparing the area of leaves of Shanghai green after the three fertilizers were applied.
FIG. 3 is a graph comparing chlorophyll of Shanghai green after three fertilizers were applied.
FIG. 4 is a graph showing the comparison of plant heights of Haematococcus in Shanghai after the application of three fertilizers.
Wherein A corresponds to pig manure; the B corresponds to the organic-inorganic compound fertilizer prepared in the embodiment 2 of the invention; c is corresponding to the traditional organic-inorganic compound fertilizer.
Detailed Description
The method for preparing the organic-inorganic compound fertilizer by quickly decomposing the livestock and poultry manure comprises the following steps:
step 1, mixing livestock manure with water content of 60-80% with 200-mesh 400-mesh colloidal attapulgite according to the weight ratio of (7-9) to (1-2), stirring at the temperature of 20-60 ℃ and 200rpm for 3-6 hours, and fully mixing to obtain the livestock manure/attapulgite mixture.
And 2, irradiating the livestock and poultry manure/attapulgite mixture obtained in the step 1 for 10-20 minutes by adopting an electron beam with energy of 10-20 MeV and dosage of 10-40kGy to obtain a modified livestock and poultry manure/attapulgite mixture.
And 4, mixing the product obtained in the step 2 and the product obtained in the step 3 with hydrogen peroxide according to the weight ratio of (70-90) to (6-9) to (1-2), stirring for 2-3 hours at 200rpm of 100-.
And 5, mixing the livestock and poultry manure decomposed material of 50-300 meshes obtained in the step 4, monoammonium phosphate of 50-100 meshes and urea of 50-100 meshes according to the weight ratio of (5-7) to (3-5) to (1-2), and granulating to obtain the organic-inorganic compound fertilizer.
The prepared organic-inorganic compound fertilizer is uniformly spread on the surface layer of soil according to the dosage of 0.6-1 ton/mu, and then rotary tillage is carried out, so that the yield of planted vegetables (Shanghai green) is increased by 10.2-30.5% compared with the traditional organic-inorganic compound fertilizer with equal nutrients.
Example 1:
step 1, mixing livestock and poultry manure with water content of 60% and 200-mesh colloid-grade attapulgite according to a weight ratio of 7:1, stirring for 3 hours at 20 ℃ according to 100rpm, and fully mixing to obtain a livestock and poultry manure/attapulgite mixture.
And 2, irradiating the livestock and poultry manure/attapulgite mixture obtained in the step 1 for 10 minutes by adopting an electron beam with energy of 10 MeV and dosage of 10kGy to obtain a modified livestock and poultry manure/attapulgite mixture.
And 3, mixing 50 meshes of aluminum ash, 50 meshes of monocalcium phosphate and 20 meshes of sodium carbonate according to the weight ratio of 7:3:1, and stirring at 100rpm for 4 hours at 20 ℃.
And 4, mixing the product obtained in the step 2 and the product obtained in the step 3 with hydrogen peroxide according to the weight ratio of 70:6:1, stirring (100 rpm) for 2 hours, heating the materials to 70 ℃, and cooling to obtain the livestock and poultry manure decomposed materials.
And 5, mixing the livestock and poultry manure decomposed material of 50 meshes obtained in the step 4, monoammonium phosphate of 50 meshes and urea of 50 meshes according to the weight ratio of 5:3:1, and granulating to obtain the organic-inorganic compound fertilizer.
The prepared organic-inorganic compound fertilizer is uniformly spread on the surface layer of soil according to the using amount of 0.6 ton/mu, and then rotary tillage is carried out, so that the yield of planted vegetables (Shanghai green) is increased by 10.2 percent compared with the traditional organic-inorganic compound fertilizer with equal nutrients.
Example 2:
step 1, mixing livestock and poultry manure with the water content of 70% and 300-mesh colloid-grade attapulgite according to the weight ratio of 8:1, stirring for 4 hours at 40 ℃ according to 150rpm, and fully mixing to obtain a livestock and poultry manure/attapulgite mixture.
And 2, irradiating the livestock and poultry manure/attapulgite mixture obtained in the step 1 for 15 minutes by adopting an electron beam with energy of 15MeV and dosage of 30kGy to obtain a modified livestock and poultry manure/attapulgite mixture.
And 3, mixing 200 meshes of aluminum ash, 200 meshes of monocalcium phosphate and 30 meshes of sodium carbonate according to the weight ratio of 8:4:1, and stirring at 50 ℃ for 6 hours at 150 rpm.
And 4, mixing the product obtained in the step 2 and the product obtained in the step 3 with hydrogen peroxide according to the weight ratio of 80:7:2, stirring for 2.5 hours at 150rpm, heating the materials to 80 ℃, and cooling to obtain the livestock and poultry manure decomposed materials.
And 5, mixing the livestock and poultry manure decomposed material of 200 meshes obtained in the step 4, monoammonium phosphate of 80 meshes and urea of 70 meshes according to the weight ratio of 6:4:1, and granulating to obtain the organic-inorganic compound fertilizer.
The prepared organic-inorganic compound fertilizer is uniformly spread on the surface layer of soil according to the using amount of 0.8 ton/mu, and then rotary tillage is carried out, so that the yield of planted vegetables (Shanghai green) is increased by 20.3 percent compared with the traditional organic-inorganic compound fertilizer with equal nutrients.
As shown in fig. 1-4, the effect of three different fertilizers on vegetables (shanghai green) is demonstrated, wherein a corresponds to raw pig manure; the B corresponds to the organic-inorganic compound fertilizer prepared in the embodiment 2 of the invention; c is corresponding to the traditional organic-inorganic compound fertilizer.
Example 3:
step 1, mixing livestock and poultry manure with the water content of 80% and 400-mesh colloid-grade attapulgite according to the weight ratio of 9:1, stirring for 6 hours at 60 ℃ according to 200rpm, and fully mixing to obtain a livestock and poultry manure/attapulgite mixture.
And 2, irradiating the livestock and poultry manure/attapulgite mixture obtained in the step 1 for 20 minutes by adopting an electron beam with the energy of 20 MeV and the dose of 40kGy to obtain a modified livestock and poultry manure/attapulgite mixture.
And 3, mixing 300-mesh aluminum ash, 300-mesh monocalcium phosphate and 50-mesh sodium carbonate according to the weight ratio of 9:5:1, and stirring at the temperature of 60 ℃ at 200rpm for 9 hours.
And 4, mixing the product obtained in the step 2 and the product obtained in the step 3 with hydrogen peroxide according to the weight ratio of 90:9:1, stirring for 3 hours at 200rpm, heating the materials to 90 ℃, and cooling to obtain the livestock and poultry manure decomposed materials.
And 5, mixing the livestock and poultry manure decomposed material of 300 meshes obtained in the step 4, monoammonium phosphate of 100 meshes and urea of 100 meshes according to the weight ratio of 7:5:1, and granulating to obtain the organic-inorganic compound fertilizer.
The prepared organic-inorganic compound fertilizer is uniformly spread on the surface layer of soil according to the using amount of 1 ton/mu, and then rotary tillage is carried out, so that the yield of planted vegetables (Shanghai green) is increased by 30.5 percent compared with the traditional organic-inorganic compound fertilizer with equal nutrients.
Claims (10)
1. A method for preparing an organic-inorganic compound fertilizer by quickly decomposing livestock and poultry manure is characterized by comprising the following steps:
step 1, mixing livestock and poultry manure and attapulgite according to the weight ratio of (7-9) to (1-2), stirring for 3-6 hours at 20-60 ℃, and fully mixing to obtain a livestock and poultry manure/attapulgite mixture;
step 2, irradiating the livestock and poultry manure/attapulgite mixture obtained in the step 1 for 10-20 minutes by adopting an electron beam to obtain a modified livestock and poultry manure/attapulgite mixture;
step 3, mixing the aluminum ash, the monocalcium phosphate and the sodium carbonate according to the weight ratio of (7-9) to (3-5) to (1-2), and stirring for 4-9 hours at the temperature of 20-60 ℃;
step 4, mixing the product obtained in the step 2 and the product obtained in the step 3 with hydrogen peroxide according to the weight ratio of (70-90) to (6-9) to (1-2), stirring for 2-3 hours, heating the materials to 70-90 ℃, and cooling to obtain the livestock and poultry manure decomposed materials;
and 5, mixing the livestock and poultry manure decomposed material obtained in the step 4, monoammonium phosphate and urea according to the weight ratio of (5-7) to (3-5) to (1-2), and granulating to obtain the organic-inorganic compound fertilizer.
2. The method for preparing an organic-inorganic compound fertilizer by rapidly decomposing livestock manure as claimed in claim 1, wherein the water content of the livestock manure in the step 1 is 60-80%.
3. The method for preparing an organic-inorganic compound fertilizer by utilizing the rapid decomposition of the livestock and poultry manure as claimed in claim 1, wherein the attapulgite in the step 1 is 200-400 mesh, colloidal grade.
4. The method for preparing an organic-inorganic compound fertilizer by rapidly decomposing livestock and poultry manure according to claim 1, wherein the energy of the electron beam in the step 2 is 10-20 MeV, and the dose of the electron beam is 10-40 kGy.
5. The method for preparing an organic-inorganic compound fertilizer by rapidly decomposing livestock and poultry manure as claimed in claim 1, wherein the aluminum ash in the step 3 is 50-300 mesh.
6. The method for preparing an organic-inorganic compound fertilizer by rapidly decomposing livestock and poultry manure as claimed in claim 1, wherein the calcium dihydrogen phosphate in the step 3 is 50-300 mesh.
7. The method for preparing an organic-inorganic compound fertilizer by using the rapid decomposition of livestock and poultry manure as claimed in claim 1, wherein the sodium carbonate in the step 3 is 20-50 mesh.
8. The method for preparing an organic-inorganic compound fertilizer by rapidly decomposing livestock and poultry manure according to claim 1, wherein the decomposed material of livestock and poultry manure in the step 5 is 50-300 meshes.
9. The method for preparing an organic-inorganic compound fertilizer by rapidly decomposing livestock and poultry manure as claimed in claim 1, wherein the monoammonium phosphate in the step 5 is 50-100 mesh.
10. The method for preparing an organic-inorganic compound fertilizer by rapidly decomposing livestock and poultry manure as claimed in claim 1, wherein the urea in the step 5 is 50-100 mesh.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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