CN111892462A - Chemical fertilizer treatment method for chicken manure - Google Patents
Chemical fertilizer treatment method for chicken manure Download PDFInfo
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- CN111892462A CN111892462A CN202010805908.5A CN202010805908A CN111892462A CN 111892462 A CN111892462 A CN 111892462A CN 202010805908 A CN202010805908 A CN 202010805908A CN 111892462 A CN111892462 A CN 111892462A
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- 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
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
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- 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
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- 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
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Environmental Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a chemical fertilizer treatment method of chicken manure, which is characterized by adding ferrous sulfate heptahydrate and sodium borohydride into deionized water, introducing nitrogen, and recovering a product by using a magnet to obtain zero-valent nano iron; mixing zero-valent nano-iron, ethylenediamine tetraacetic acid and diatomite to obtain a nano-carrier; electrolyzing sulfuric acid to obtain peroxodisulfuric acid, reacting the peroxodisulfuric acid with ammonium sulfate to obtain an ammonium persulfate solution, and adding manganese dioxide to obtain a manganese dioxide/ammonium persulfate solution; and sequentially adding the nano-carrier and the manganese dioxide/ammonium persulfate solution into fresh chicken manure. The invention adopts a strong oxidation method to treat the chicken manure and quickly converts the chicken manure into the micromolecular organic fertilizer rich in humic acid and fulvic acid, the invention does not need to pretreat the manure, the stink smell of the manure can be eliminated in the oxidation process, the moisture in the manure is reduced, and the main products of humic acid and fulvic acid can not only improve the soil structure and increase the soil fertility, but also improve the drought resistance and cold resistance of crops.
Description
Technical Field
The invention relates to a method for quickly converting chicken manure into an organic fertilizer, belonging to the field of agriculture.
Background
Short intestinal tract of chicken and eatingThe feed is not sufficiently digested and utilized, and about 40 to 70 percent of nutrients are discharged out of the body, so that the chicken manure has the highest nutrients in all the livestock manure. The chicken manure is a high-quality organic fertilizer and contains pure nitrogen and phosphorus (P)2O5) Potassium (K)2O) is about 1.63%, 1.54%, 0.85%. The organic matter can improve the physical, chemical and biological characteristics of soil, mature the soil and fertilize the soil. The application of the chicken manure fertilizer can increase a plurality of organic colloids, decompose and convert a plurality of organic matters into the organic colloids by virtue of the action of microorganisms, greatly increase the soil adsorption surface, generate a plurality of adhesive substances, enable soil particles to be cemented into a stable granular structure, and improve the water-retaining, fertilizer-retaining and air-permeable performances of the soil and the capability of adjusting the temperature of the soil. The Hangul of rural areas in China that the manure is raised on the ground and the seedlings are grown on the manure reflects the effect of applying the chicken manure on improving the soil to a certain extent.
The reported result shows that about 36.4 kg of excrement can be discharged by each laying hen and 24.54-49.08 kg of excrement can be discharged by each broiler chicken in one year. A large amount of chicken manure not only causes pollution to the environment, but also is a waste of resources. When the chicken is raised to a certain scale, the treatment and utilization of the chicken manure are important. The comprehensive utilization of the chicken manure can greatly improve the sanitary environment of chicken farms, eliminate mosquitoes, flies and odor, reduce the spread of diseases, and fully utilize the resource as feed, fertilizer and the like, so that the chicken manure is changed into valuable, and better social benefit, ecological benefit and economic benefit are generated.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a method for treating chicken manure, which can quickly convert the chicken manure into a high-activity loss-control organic fertilizer rich in humic acid and fulvic acid.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a method for the chemical and fertilizer treatment of chicken manure is characterized by comprising the following steps:
step 1): adding ferrous sulfate heptahydrate and sodium borohydride into deionized water, continuously introducing nitrogen, stirring, recovering a product by using a magnet, washing for 3-5 times by using the deionized water, drying in vacuum, and grinding to obtain zero-valent nano iron;
step 2): uniformly mixing zero-valent nano-iron, ethylenediamine tetraacetic acid and diatomite to obtain a nano-carrier;
step 3): uniformly mixing ammonium sulfate and sulfuric acid to prepare electrolyte, electrolyzing the sulfuric acid to obtain peroxodisulfuric acid, and reacting the peroxodisulfuric acid with the ammonium sulfate to obtain an ammonium persulfate solution;
step 4): adding manganese dioxide into the ammonium sulfate solution, and stirring at 50-90 ℃ to obtain a manganese dioxide/ammonium persulfate solution;
step 5): and (3) sequentially adding the nano-carrier obtained in the step (2) and the manganese dioxide/ammonium persulfate solution obtained in the step (4) into fresh chicken manure, and fully stirring at room temperature to obtain the loss-control organic fertilizer rich in humic acid and fulvic acid.
Preferably, the ratio of the ferrous sulfate heptahydrate, the sodium borohydride and the deionized water in the step 1) is (1-3) g: (3-5) g: (50-70) mL.
Preferably, the pressure of the nitrogen in the step 1) is 0.1-0.3 MPa; the stirring speed is 300-500rpm, and the stirring time is 30-50 min; the temperature for vacuum drying is 60-80 ℃; grinding to a fineness of 100-200 meshes.
Preferably, the mass ratio of the zero-valent nano-iron, the ethylenediamine tetraacetic acid and the diatomite in the step 2) is (1-3): (0.5-1.5): (2-5); the mixing adopts stirring mixing, and the stirring rotating speed is 300-500 rpm.
Preferably, the molar ratio of ammonium sulfate to sulfuric acid in the step 3) is 1: 1.
preferably, the electrolysis process parameters in the step 3) are as follows: voltage of 100-.
Preferably, the adding amount of the nano-carrier in the step 5) is 0.3-3g/mL, and the mass ratio of the nano-carrier to the chicken manure is (1-3): (5-10).
Preferably, the method for applying the loss-control organic fertilizer obtained in the step 5) comprises the following steps: uniformly spreading the mixture on the soil surface according to 50-100 kg/mu, and then carrying out rotary tillage.
The invention adopts a strong oxidation method to treat the chicken manure and quickly converts the chicken manure into the micromolecular organic fertilizer rich in humic acid and fulvic acid. The method is simple to operate, excrement does not need to be pretreated, the odor of the excrement can be eliminated in the oxidation process, moisture in the excrement is reduced, and the main products of humic acid and fulvic acid can improve the soil structure, increase the soil fertility and improve the drought resistance and cold resistance of crops. Therefore, the chicken manure can be recycled and converted into high-quality and high-efficiency green and environment-friendly fertilizer, and the problems of environmental pollution and resource recycling of the breeding industry are fundamentally solved.
Compared with the prior art, the invention has the beneficial effects that:
1) the technology can quickly dehydrate the chicken manure, is beneficial to transportation, avoids pollution overflow and reduces environmental pollution;
2) the technology can deodorize the chicken manure within 1-3 minutes, and obviously reduce the environmental protection pressure of the chicken manure;
3) the technology can ensure that the temperature of the chicken manure is increased to 80 ℃ within 5-10 minutes, and effectively reduce ascarid eggs and harmful bacteria;
4) the technology can convert macromolecular organic matters in the chicken manure into humic acid and fulvic acid within 20-40 minutes to produce the high-activity organic fertilizer.
Drawings
FIG. 1 is a graph showing the relationship between the fulvic acid content of chicken manure after treatment in example 2;
FIG. 2 is the relationship of humic acid content of chicken manure after the treatment of example 2;
FIG. 3 is the temperature of the treated chicken manure as a function of time in example 2;
fig. 4 shows the mortality of ascarid eggs in the loss-controlling organic fertilizer.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
Example 1
A method for the chemical and fertilizer treatment of chicken manure comprises the following steps:
(1) adding 1g of ferrous sulfate heptahydrate and 3g of sodium borohydride into 50mL of deionized water, continuously introducing nitrogen (0.1MPa), mechanically stirring at 300rpm for 30min, then recovering the product by using a magnet, washing for 3 times by using the deionized water, drying in a vacuum oven at 60 ℃, and grinding into fine powder (100 meshes) to obtain zero-valent nano iron;
(2) uniformly mixing 1g of zero-valent nano iron in the step (1), 0.5g of ethylene diamine tetraacetic acid (analytically pure) and 2g of diatomite (colloid grade, 100 meshes) under mechanical stirring at 300rpm to obtain a high-activity nano carrier;
(3) ammonium sulfate (50mL, 0.5mol/L) and sulfuric acid (50mL, 0.5mol/L) are mixed uniformly to prepare electrolyte, electrolysis (copper electrode, electrode spacing 10cm) is carried out for 10min under the voltage of 100V, and peroxydisulfuric acid (HSO) is prepared4-→2e+H2S2O8) And further reacted with ammonium sulfate to give ammonium persulfate (H)2S2O8+(NH4)2SO4→(NH4)2S2O8+H2SO4) A solution;
(4) adding manganese dioxide (10g/L) to the solution obtained in (3) and stirring (100rpm) at a temperature of 50 ℃ for 10 minutes to obtain a manganese dioxide/ammonium persulfate solution;
(5) sequentially adding 1g of the powder obtained in the step (2) and 1mL of the solution obtained in the step (4) into 5g of fresh chicken manure, and fully stirring at room temperature for 10min to obtain a high-activity loss-control organic fertilizer rich in humic acid and fulvic acid;
(6) the loss-control organic fertilizer is uniformly spread on the soil surface according to 50 kg/mu, then rotary tillage is carried out, and after 30 days, the yield increase of corn, rice and wheat is respectively 120 kg/mu, 110 kg/mu and 150 kg/mu.
Example 2
A method for the chemical and fertilizer treatment of chicken manure comprises the following steps:
(1) adding 2g of ferrous sulfate heptahydrate and 4g of sodium borohydride into 60mL of deionized water, continuously introducing nitrogen (0.2MPa), mechanically stirring at 400rpm for 40min, then recovering the product by using a magnet, washing for 4 times by using the deionized water, drying in a vacuum oven at 70 ℃, and grinding into fine powder (150 meshes) to obtain zero-valent nano iron;
(2) uniformly mixing 2g of zero-valent nano iron, 1g of ethylene diamine tetraacetic acid (analytically pure) and 3.5g of diatomite (colloid grade, 150 meshes) in the step (1) under mechanical stirring of 400rpm to obtain a high-activity nano carrier;
(3) uniformly mixing ammonium sulfate (65mL, 1.25mol/L) and sulfuric acid (65mL, 1.25mol/L) to prepare electrolyte, electrolyzing (copper electrode, electrode distance 20cm) for 20min under the voltage of 150V to prepare peroxodisulfuric acid, and reacting with ammonium sulfate to obtain ammonium persulfate solution;
(4) adding manganese dioxide (15g/L) to the solution obtained in (3) and stirring (200rpm) at a temperature of 60 ℃ for 20 minutes to obtain a manganese dioxide/ammonium persulfate solution;
(5) sequentially adding 2g of the powder obtained in the step (2) and 2mL of the solution obtained in the step (4) into 7.5g of fresh chicken manure, and fully stirring at room temperature for 20min to obtain a high-activity loss-control organic fertilizer rich in humic acid and fulvic acid;
(6) the loss-control organic fertilizer is uniformly spread on the soil surface according to 75 kg/mu, then rotary tillage is carried out, and after 30 days, the yield increase of corn, rice and wheat is respectively 140 kg/mu, 130 kg/mu and 165 kg/mu.
The effect of applying different fertilizers on the yield of corn, rice and wheat is shown in table 1.
TABLE 1
FIG. 1 is a graph showing the change of fulvic acid content in chicken manure. Example 2 is different from the control group in that 2g of the powder obtained in (2) and 2mL of the solution obtained in (4) are sequentially added into 7.5g of fresh chicken manure in example 2, and the mixture is fully stirred for 20min at room temperature to obtain a high-activity loss-control organic fertilizer rich in humic acid and fulvic acid; while the control group did not add the powder of (2) and the solution of (4), and the rest of the conditions were identical to those of the experimental group. And finally, measuring the content of the fulvic acid at 262nm by using an ultraviolet spectrophotometer, wherein the measurement result shows that the content of the fulvic acid in the treated chicken manure is improved by about 2 times compared with that in the untreated chicken manure. )
FIG. 2 is a graph showing the change of humic acid content in chicken manure. Example 2 is different from the control group in that 2g of the powder obtained in (2) and 2mL of the solution obtained in (4) are sequentially added into 7.5g of fresh chicken manure in example 2, and the mixture is fully stirred for 20min at room temperature to obtain a high-activity loss-control organic fertilizer rich in humic acid and fulvic acid; while the control group did not add the powder of (2) and the solution of (4), and the rest of the conditions were identical to those of the experimental group. And finally, measuring the content of humic acid at 460nm by using an ultraviolet spectrophotometer, wherein the measurement result shows that the content of humic acid in the treated chicken manure is increased by about 5 times compared with that in the untreated chicken manure. )
FIG. 3 is a graph showing the relationship between the temperature of chicken manure and time. In example 2, a thermometer was first inserted into fresh chicken manure, and then 20g of the powder obtained in (2) and 20mL of the solution obtained in (4) were added in this order to 75g of fresh chicken manure, sufficiently stirred at room temperature, and the change in temperature of the chicken manure was measured with a thermometer. ) Example 3
A method for the chemical and fertilizer treatment of chicken manure comprises the following steps:
(1) adding 3g of ferrous sulfate heptahydrate and 5g of sodium borohydride into 70mL of deionized water, continuously introducing nitrogen (0.3MPa), mechanically stirring at 500rpm for 50min, then recovering the product by using a magnet, washing for 5 times by using the deionized water, drying in a vacuum oven at 80 ℃, and grinding into fine powder (200 meshes) to obtain zero-valent nano iron;
(2) uniformly mixing 3g of zero-valent nano iron in the step (1), 1.5g of ethylene diamine tetraacetic acid (analytically pure) and 5g of diatomite (colloid grade, 200 meshes) under mechanical stirring of 500rpm to obtain a high-activity nano carrier;
(3) uniformly mixing ammonium sulfate (80mL, 2mol/L) and sulfuric acid (80mL, 2mol/L) to prepare electrolyte, electrolyzing (a copper electrode with an electrode distance of 30cm) for 30min under the voltage of 200V to prepare peroxodisulfuric acid, and reacting with the ammonium sulfate to obtain ammonium persulfate solution;
(4) adding manganese dioxide (20g/L) to the solution obtained in (3) and stirring (300rpm) at a temperature of 90 ℃ for 30 minutes to obtain a manganese dioxide/ammonium persulfate solution;
(5) sequentially adding 3g of the powder obtained in the step (2) and 3mL of the solution obtained in the step (4) into 10g of fresh chicken manure, and fully stirring at room temperature for 30min to obtain a high-activity loss-control organic fertilizer rich in humic acid and fulvic acid;
(6) uniformly spreading the loss-control organic fertilizer on the soil surface according to 100 kg/mu, and then carrying out rotary tillage, wherein the yield increase of corn, rice and wheat is 160 kg/mu, 150 kg/mu and 180 kg/mu respectively after 30 days.
FIG. 4 shows the mortality of ascarid eggs in the loss-controlling organic fertilizer, and the data in the graph are used for determining the ascarid egg mortality of the chicken manure treated in the examples 1-3 according to the national standard GB/T19524.2.
Claims (9)
1. A method for the chemical and fertilizer treatment of chicken manure is characterized by comprising the following steps:
step 1): adding ferrous sulfate heptahydrate and sodium borohydride into deionized water, continuously introducing nitrogen, stirring, recovering a product by using a magnet, washing for 3-5 times by using the deionized water, drying in vacuum, and grinding to obtain zero-valent nano iron;
step 2): uniformly mixing zero-valent nano-iron, ethylenediamine tetraacetic acid and diatomite to obtain a nano-carrier;
step 3): uniformly mixing ammonium sulfate and sulfuric acid to prepare electrolyte, electrolyzing the sulfuric acid to obtain peroxodisulfuric acid, and reacting the peroxodisulfuric acid with the ammonium sulfate to obtain an ammonium persulfate solution;
step 4): adding manganese dioxide into the ammonium sulfate solution, and stirring at 50-90 ℃ to obtain a manganese dioxide/ammonium persulfate solution;
step 5): and (3) sequentially adding the nano-carrier obtained in the step (2) and the manganese dioxide/ammonium persulfate solution obtained in the step (4) into fresh chicken manure, and fully stirring at room temperature to obtain the loss-control organic fertilizer rich in humic acid and fulvic acid.
2. The method for fertilizing chicken manure as claimed in claim 1, wherein the ratio of ferrous sulfate heptahydrate, sodium borohydride and deionized water in step 1) is (1-3) g: (3-5) g: (50-70) mL.
3. The method for fertilizing chicken manure as claimed in claim 1, wherein the pressure of nitrogen in step 1) is 0.1-0.3 MPa; the stirring speed is 300-500rpm, and the stirring time is 30-50 min; the temperature for vacuum drying is 60-80 ℃; grinding to a fineness of 100-200 meshes.
4. The method for fertilizing chicken manure as claimed in claim 1, wherein the mass ratio of the zero-valent nano-iron, the ethylenediaminetetraacetic acid and the diatomite in the step 2) is (1-3): (0.5-1.5): (2-5); the mixing adopts stirring mixing, and the stirring rotating speed is 300-500 rpm.
5. The method for chemical fertilizing of chicken manure as claimed in claim 1, wherein the molar ratio of ammonium sulphate to sulphuric acid in step 3) is 1: 1.
6. the method for fertilizing chicken manure as claimed in claim 1, wherein the electrolysis process parameters in step 3) are as follows: the voltage is 100-.
7. The method for fertilizing chicken manure as claimed in claim 1, wherein the amount of manganese dioxide added in step 4) is 10-20g/L, the stirring speed is 100-300rpm, and the stirring time is 10-30 minutes.
8. The method for fertilizing chicken manure as claimed in claim 1, wherein the amount of the nano-carrier added in step 5) is 0.3-3g/mL, and the mass ratio of the nano-carrier to the chicken manure is (1-3): (5-10).
9. The method for fertilizing chicken manure as claimed in claim 1, wherein the method for applying the loss-control organic fertilizer obtained in step 5) comprises: uniformly spreading the mixture on the soil surface according to 50-100 kg/mu, and then carrying out rotary tillage.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112851436A (en) * | 2021-03-29 | 2021-05-28 | 东华大学 | Method for quickly converting pig manure into organic fertilizer |
| CN113735662A (en) * | 2021-08-26 | 2021-12-03 | 天水师范学院 | Low-eutectic solvent catalytic coupling mechanochemical activation livestock and poultry manure carbon sequestration emission reduction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391908A (en) * | 2008-09-16 | 2009-03-25 | 通州市专用肥料厂 | Method for preparing amino-fulvic acid by oxidizing excrement |
| CN103708689A (en) * | 2013-12-20 | 2014-04-09 | 湖南大学 | Sterilization, deodorization and deep-dehydration method for livestock excrements |
| CN109504398A (en) * | 2018-12-30 | 2019-03-22 | 山东农大腐植酸高效利用工程技术研发有限公司 | A kind of humic acid nano zero valence iron soil Cr pollution amelioration agent and preparation method |
| CN109569690A (en) * | 2018-12-17 | 2019-04-05 | 武汉轻工大学 | Carbonitride/nano zero-valence iron composite material preparation method, deodorant and preparation method thereof |
-
2020
- 2020-08-12 CN CN202010805908.5A patent/CN111892462A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391908A (en) * | 2008-09-16 | 2009-03-25 | 通州市专用肥料厂 | Method for preparing amino-fulvic acid by oxidizing excrement |
| CN103708689A (en) * | 2013-12-20 | 2014-04-09 | 湖南大学 | Sterilization, deodorization and deep-dehydration method for livestock excrements |
| CN109569690A (en) * | 2018-12-17 | 2019-04-05 | 武汉轻工大学 | Carbonitride/nano zero-valence iron composite material preparation method, deodorant and preparation method thereof |
| CN109504398A (en) * | 2018-12-30 | 2019-03-22 | 山东农大腐植酸高效利用工程技术研发有限公司 | A kind of humic acid nano zero valence iron soil Cr pollution amelioration agent and preparation method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112851436A (en) * | 2021-03-29 | 2021-05-28 | 东华大学 | Method for quickly converting pig manure into organic fertilizer |
| CN113735662A (en) * | 2021-08-26 | 2021-12-03 | 天水师范学院 | Low-eutectic solvent catalytic coupling mechanochemical activation livestock and poultry manure carbon sequestration emission reduction method |
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