CN113800987A - Production and processing technology of liquid organic fertilizer - Google Patents

Production and processing technology of liquid organic fertilizer Download PDF

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CN113800987A
CN113800987A CN202111106527.9A CN202111106527A CN113800987A CN 113800987 A CN113800987 A CN 113800987A CN 202111106527 A CN202111106527 A CN 202111106527A CN 113800987 A CN113800987 A CN 113800987A
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fermentation
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organic fertilizer
liquid organic
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刘青松
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Haikou Lvzhihai Ecological Agricultural Technology Co ltd
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Haikou Lvzhihai Ecological Agricultural Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05BPHOSPHATIC FERTILISERS
    • C05B1/00Superphosphates, 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
    • C05B1/02Superphosphates
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05FORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/10Addition or removal of substances other than water or air to or from the material during the treatment
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05FORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/20Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation using specific microorganisms or substances, e.g. enzymes, for activating or stimulating the treatment
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05FORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/50Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/80Soil conditioners
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G5/00Fertilisers characterised by their form
    • C05G5/20Liquid fertilisers
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/40Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Biotechnology (AREA)
  • Biochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Engineering & Computer Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Tropical Medicine & Parasitology (AREA)
  • Soil Sciences (AREA)
  • Fertilizers (AREA)

Abstract

The invention relates to the technical field of liquid organic fertilizers, in particular to a production and processing technology of a liquid organic fertilizer, which comprises the following steps: s1, crushing the organic raw materials into granules, putting the granules into a fermentation bin, and adding an auxiliary agent into the fermentation bin; s2, adding water vapor and air into the fermentation chamber, and sealing, mixing and fermenting under a certain air pressure; s3, when the temperature in the fermentation bin reaches 42-48 ℃, adding medium-temperature zymophyte; s4 adding high-temperature zymocyte when the temperature in the fermentation bin reaches 52-58 ℃; s5, when the temperature in the fermentation chamber is reduced to 42-48 ℃, adding the medium-temperature zymophyte into the fermentation chamber again for fermentation; s6, in the whole fermentation process, separating stationary liquid from the bottom of the fermentation bin to obtain a liquid organic fertilizer; the liquid organic fertilizer prepared by the invention has long fertilizer efficiency time, can act in multiple directions, is fully fermented and degraded, can be directly absorbed by plants, overcomes the defect of slow fertilizer efficiency of the solid organic fertilizer, and has high content of nutrient components and convenient use.

Description

Production and processing technology of liquid organic fertilizer
Technical Field
The invention relates to the technical field of liquid organic fertilizers, in particular to a production and processing technology of a liquid organic fertilizer.
Background
Most of the existing organic fertilizers are solid fertilizers, and as the main function of the organic fertilizers is to improve soil, the organic fertilizers used before planting cannot maintain the fertilizer efficiency for several years, and especially for rainy areas, the loss is serious, so that the solid organic fertilizers are inconvenient to use, and the organic fertilizers applied after planting cannot be fully and uniformly mixed with the soil, and only play a role in supplementing the fertilizer efficiency. The existing liquid organic fertilizer has single component, such as liquid seaweed fertilizer, humic acid fertilizer, amino acid fertilizer, trace element water-soluble fertilizer and the like, has single component and single function, can only be used as a single supplement, and cannot play a comprehensive, multi-element and comprehensive role of the organic fertilizer.
Meanwhile, the existing liquid organic fertilizer is easy to generate a lot of harmful microorganisms in the preservation process, so that the liquid organic fertilizer cannot be stored for a long time, great difficulty is brought to production, and the sealing preservation cost of the liquid organic fertilizer is high. Therefore, it is necessary to provide a production process of a liquid organic fertilizer with fast fertilizer efficiency and easy preservation, which is used to solve the above problems
Disclosure of Invention
In view of the above, the invention provides a production and processing technology of a liquid organic fertilizer.
The technical scheme of the invention is realized as follows:
the invention provides a production and processing technology of a liquid organic fertilizer, which comprises the following steps:
s1, crushing the organic raw materials into granules, putting the granules into a fermentation bin, and adding an auxiliary agent into the fermentation bin;
s2, adding water vapor and air into the fermentation bin, keeping the mixture at low pressure, sealing and mixing, and performing natural primary fermentation;
s3, when the temperature in the fermentation bin reaches 42-48 ℃, adding medium-temperature fermentation bacteria in the fermentation bin, sealing and mixing, and performing medium-temperature fermentation;
s4, when the temperature in the fermentation bin reaches 52-58 ℃, adding high-temperature fermentation bacteria in the fermentation bin, sealing and mixing, and performing high-temperature fermentation;
s5, gradually cooling the temperature in the fermentation bin after the temperature in the fermentation bin rises to the maximum temperature of 60 ℃ in the fermentation process, and adding medium-temperature zymophyte into the fermentation bin again to perform secondary medium-temperature fermentation when the temperature in the fermentation bin is reduced to 42-48 ℃;
s6, in the whole fermentation process, carrying out stationary liquid separation at the bottom of the fermentation bin, and collecting fermentation liquor flowing out from the bottom of the fermentation bin to obtain a liquid organic fertilizer;
and S7, reducing the temperature in the fermentation bin to room temperature, and discharging no liquid organic fertilizer from the bottom of the fermentation bin, namely completing the fermentation preparation.
Preferably, the auxiliary agent in S1 is a fermentation inorganic nutrient solution. The inorganic fermentation nutrient solution is prepared by adding water into any one or more of monopotassium phosphate, calcium superphosphate, ammonium sulfate, ammonium phosphate, magnesium sulfate, zinc sulfate and copper chloride, and can be added according to the growth needs of crops.
Preferably, in S2, the air in the fermentation chamber is provided by a compressor, and the air pressure in the fermentation chamber is 2.0-2.5 Pa.
Preferably, the water vapor in the fermentation chamber during the fermentation process is controlled by a sprayer, and the humidity is 55-65%.
Preferably, the medium-temperature fermentation bacteria and the high-temperature fermentation bacteria are diluted into a bacterial liquid by 50-100 times of water volume, and the bacterial liquid is added into the fermentation bin through a sprayer.
Preferably, in the S3, the adding amount of the medium-temperature zymophyte is 2-4% of the mass of the fermentation substrate.
Preferably, in the step S4, the adding amount of the high-temperature zymophyte is 1-3% of the mass of the fermentation substrate.
Preferably, in the S5, the adding amount of the medium-temperature zymophyte is 0.8-1% of the mass of the fermentation substrate.
Preferably, the mesophilic fermentation bacteria is any one or combination of more of streptococcus thermophilus, lactococcus lactis and lactobacillus delbrueckii.
Preferably, the high-temperature fermentation bacteria are any one or combination of bacillus subtilis, bacillus licheniformis, streptococcus thermophilus and bacillus stearothermophilus.
Compared with the prior art, the invention has the beneficial effects that:
1. the liquid organic fertilizer prepared by the invention has long fertilizer efficiency time, can act in multiple directions, can be used for improving soil and absorbing and utilizing various nutrient elements required by plant growth, and is convenient to use.
2. The liquid organic fertilizer disclosed by the invention is fully degraded, has high yield, can be directly absorbed by plants, overcomes the defect of slow fertilizer efficiency of a solid organic fertilizer, is comprehensive and high in content of nutrient components, is convenient to take compared with single water, is quick in fertilizer efficiency, and does not generate side effects.
3. The liquid organic fertilizer can be directly used, the labor cost of transportation and the like is saved, the content of harmful bacteria is low, and the liquid organic fertilizer is easy to store in a sealing manner.
Detailed Description
In order to better understand the technical content of the invention, specific examples are provided below to further illustrate the invention.
The experimental methods used in the examples of the present invention are all conventional methods unless otherwise specified.
The materials, reagents and the like used in the examples of the present invention can be obtained commercially without specific description.
Example 1
A production and processing technology of a liquid organic fertilizer comprises the following steps:
s1, crushing the organic raw materials into granules by a crusher, putting the granules into a fermentation bin, and adding 10 wt% of an auxiliary agent into the fermentation bin; the auxiliary agent is fermented inorganic nutrient solution;
s2, adding appropriate water vapor and air into the fermentation bin, keeping the pressure of 2Pa, sealing and mixing, and performing natural primary fermentation; air is provided by a compressor, and water vapor is provided by a sprayer;
s3, when the temperature in the fermentation bin reaches 42 ℃, adding medium-temperature fermentation bacteria in an amount which is 2-4% of the mass of the fermentation substrate into the fermentation bin, sealing and mixing, and performing medium-temperature fermentation;
s4, when the temperature in the fermentation bin reaches 52 ℃, adding high-temperature fermentation bacteria of which the mass is 1-3% of that of the fermentation substrate into the fermentation bin, sealing and mixing, and performing high-temperature fermentation;
s5, gradually cooling the fermentation bin after the temperature in the fermentation bin rises to the maximum temperature of 60 ℃ in the fermentation process, and adding medium-temperature fermentation bacteria of which the mass is 0.8-1% of that of the fermentation substrate into the fermentation bin again when the temperature in the fermentation bin is reduced to 42 ℃ to perform secondary medium-temperature fermentation;
s6, in the whole fermentation process, carrying out stationary liquid separation at the bottom of the fermentation bin, and collecting fermentation liquor flowing out from the bottom of the fermentation bin to obtain a liquid organic fertilizer;
s7, reducing the temperature in the fermentation bin to room temperature of 27 +/-2 ℃, and no discharging liquid organic matters from the bottom of the fermentation bin
Wherein, the water vapor of the fermentation chamber during the fermentation process is controlled by a sprayer, the humidity is 55 percent, and the medium-temperature zymocyte and the high-temperature zymocyte are diluted into bacterial liquid by 80-volume water, and the bacterial liquid is added into the fermentation chamber through the sprayer; the mesophilic zymocyte is streptococcus thermophilus, lactococcus lactis and lactobacillus delbrueckii with the mass ratio of 1:1: 1; the high-temperature zymocyte is bacillus subtilis, streptococcus thermophilus and bacillus stearothermophilus in a mass ratio of 1:1: 1.
Example 2
A production and processing technology of a liquid organic fertilizer comprises the following steps:
s1, crushing the organic raw materials into granules by a crusher, putting the granules into a fermentation bin, and adding 10 wt% of an auxiliary agent into the fermentation bin; the auxiliary agent is fermented inorganic nutrient solution;
s2, adding appropriate water vapor and air into the fermentation bin, keeping the pressure of 2.25Pa, sealing and mixing, and performing natural primary fermentation; air is provided by a compressor, and water vapor is provided by a sprayer;
s3, when the temperature in the fermentation bin reaches 45 ℃, adding medium-temperature fermentation bacteria in an amount which is 2-4% of the mass of the fermentation substrate into the fermentation bin, sealing and mixing, and performing medium-temperature fermentation;
s4, when the temperature in the fermentation bin reaches 55 ℃, adding high-temperature fermentation bacteria of which the mass is 1-3% of that of the fermentation substrate into the fermentation bin, sealing and mixing, and performing high-temperature fermentation;
s5, gradually cooling the fermentation bin after the temperature in the fermentation bin rises to the maximum temperature of 60 ℃ in the fermentation process, and adding medium-temperature fermentation bacteria of which the mass is 0.8-1% of that of the fermentation substrate into the fermentation bin again when the temperature in the fermentation bin is reduced to 45 ℃ to perform secondary medium-temperature fermentation;
s6, in the whole fermentation process, carrying out stationary liquid separation at the bottom of the fermentation bin, and collecting fermentation liquor flowing out from the bottom of the fermentation bin to obtain a liquid organic fertilizer;
s7, reducing the temperature in the fermentation bin to the room temperature of 27 +/-2 ℃, and discharging no liquid organic fertilizer from the bottom of the fermentation bin, namely completing the fermentation preparation.
Wherein, the water vapor of the fermentation chamber during the fermentation process is controlled by a sprayer, the humidity is 60 percent, and the medium-temperature zymocyte and the high-temperature zymocyte are diluted into bacterial liquid by 100 times of water volume and added into the fermentation chamber through the sprayer; the mesophilic zymocyte is streptococcus thermophilus, lactococcus lactis and lactobacillus delbrueckii with the mass ratio of 1:1: 1; the high-temperature zymocyte is bacillus subtilis, streptococcus thermophilus and bacillus stearothermophilus in a mass ratio of 1:1: 1.
Example 3
A production and processing technology of a liquid organic fertilizer comprises the following steps:
s1, crushing the organic raw materials into granules by a crusher, putting the granules into a fermentation bin, and adding 10 wt% of an auxiliary agent into the fermentation bin; the auxiliary agent is fermented inorganic nutrient solution;
s2, adding appropriate water vapor and air into the fermentation bin, keeping the pressure of 2.5Pa, sealing and mixing, and performing natural primary fermentation; air is provided by a compressor, and water vapor is provided by a sprayer;
s3, when the temperature in the fermentation bin reaches 48 ℃, adding medium-temperature fermentation bacteria in an amount which is 2-4% of the mass of the fermentation substrate into the fermentation bin, sealing and mixing, and performing medium-temperature fermentation;
s4, when the temperature in the fermentation bin reaches 58 ℃, adding high-temperature fermentation bacteria of which the mass is 1-3% of that of the fermentation substrate into the fermentation bin, sealing and mixing, and performing high-temperature fermentation;
s5, gradually cooling the fermentation bin after the temperature in the fermentation bin rises to the maximum temperature of 60 ℃ in the fermentation process, and adding medium-temperature fermentation bacteria of which the mass is 0.8-1% of that of the fermentation substrate into the fermentation bin again when the temperature in the fermentation bin is reduced to 48 ℃ to perform secondary medium-temperature fermentation;
s6, in the whole fermentation process, carrying out stationary liquid separation at the bottom of the fermentation bin, and collecting fermentation liquor flowing out from the bottom of the fermentation bin to obtain a liquid organic fertilizer;
s7, reducing the temperature in the fermentation bin to the room temperature of 27 +/-2 ℃, and discharging no liquid organic fertilizer from the bottom of the fermentation bin, namely completing the fermentation preparation.
Wherein, the water vapor of the fermentation chamber during the fermentation process is controlled by a sprayer, the humidity is 65%, and the medium-temperature zymocyte and the high-temperature zymocyte are diluted into a bacterial liquid by 90 times of water volume and added into the fermentation chamber through the sprayer; the mesophilic zymocyte is streptococcus thermophilus, lactococcus lactis and lactobacillus delbrueckii with the mass ratio of 1:1: 1; the high-temperature zymocyte is bacillus subtilis, streptococcus thermophilus and bacillus stearothermophilus in a mass ratio of 1:1: 1.
Example 4
A production and processing technology of a liquid organic fertilizer comprises the following steps:
s1, crushing the organic raw materials into granules by a crusher, putting the granules into a fermentation bin, and adding 10 wt% of an auxiliary agent into the fermentation bin; the auxiliary agent is fermented inorganic nutrient solution;
s2, adding appropriate water vapor and air into the fermentation bin, keeping the pressure of 2.4Pa, sealing and mixing, and performing natural primary fermentation; air is provided by a compressor, and water vapor is provided by a sprayer;
s3, when the temperature in the fermentation bin reaches 47 ℃, adding medium-temperature fermentation bacteria in an amount which is 2-4% of the mass of the fermentation substrate into the fermentation bin, sealing and mixing, and performing medium-temperature fermentation;
s4, when the temperature in the fermentation bin reaches 57 ℃, adding high-temperature fermentation bacteria of which the mass is 1-3% of that of the fermentation substrate into the fermentation bin, sealing and mixing, and performing high-temperature fermentation;
s5, gradually cooling the fermentation bin after the temperature in the fermentation bin rises to the maximum temperature of 60 ℃ in the fermentation process, and adding medium-temperature fermentation bacteria of which the mass is 0.8-1% of that of the fermentation substrate into the fermentation bin again when the temperature in the fermentation bin is reduced to 47 ℃ to perform secondary medium-temperature fermentation;
s6, in the whole fermentation process, carrying out stationary liquid separation at the bottom of the fermentation bin, and collecting fermentation liquor flowing out from the bottom of the fermentation bin to obtain a liquid organic fertilizer;
s7, reducing the temperature in the fermentation bin to the room temperature of 27 +/-2 ℃, and discharging no liquid organic fertilizer from the bottom of the fermentation bin, namely completing the fermentation preparation.
Wherein, the water vapor of the fermentation chamber during the fermentation process is controlled by a sprayer, the humidity is 63 percent, and the medium-temperature zymocyte and the high-temperature zymocyte are diluted into bacterial liquid by 90 times of water volume and added into the fermentation chamber through the sprayer; the mesophilic zymocyte is streptococcus thermophilus, lactococcus lactis and lactobacillus delbrueckii with the mass ratio of 1:1: 1; the high-temperature fermentation bacteria comprise bacillus subtilis, bacillus licheniformis, streptococcus thermophilus and bacillus stearothermophilus in a mass ratio of 1:1:1: 1.
The fermented inorganic nutrient solution in examples 1 to 4 was prepared by mixing potassium dihydrogen phosphate, calcium superphosphate, ammonium sulfate, magnesium sulfate, sulfuric acid, and copper chloride in a mass ratio of 10:5:5:8:2:3 with 5 times of water by mass.
Comparative example 1
The production and processing technology of the liquid organic fertilizer as in example 4 is characterized in that: in steps S3 and 4, after the temperature reaches 47 ℃, synchronously adding medium-temperature zymophyte and high-temperature zymophyte into the fermentation bin, sealing, mixing and fermenting; the rest is the same as in example 4.
Comparative example 2
The production and processing technology of the liquid organic fertilizer as in example 4 is characterized in that: in step S5, medium temperature fermentation bacteria are not added for secondary medium temperature fermentation, the temperature is gradually reduced by 27 +/-2 ℃ for natural fermentation after the maximum temperature is 60 ℃, and liquid organic fertilizer is not discharged from the bottom of the fermentation bin, thus completing the fermentation preparation.
Comparative example 3
The traditional single fermentation process is adopted for producing and processing the liquid organic fertilizer, namely, after the organic raw materials are crushed into granules, the granules are added into a fermentation bin, 10 wt% of auxiliary agent is added and mixed with the medium-temperature and high-temperature fermentation bacteria with the same total dosage as that of the embodiment 4, the mixture is naturally fermented under normal pressure, and the liquid organic fertilizer is not discharged from the bottom of the fermentation bin, namely, the fermentation preparation is completed.
According to the production process of the liquid organic fertilizer of the embodiment and the comparative example, the degradation effect of organic matters in the liquid organic fertilizer and the determination experiment of the quantity of beneficial and harmful microorganisms are carried out, wherein equal amounts of organic raw materials are respectively taken, and the formula of the organic raw materials is as follows: the measurement and comparison results of 20 parts of chicken manure, 18 parts of sheep manure, 20 parts of cow manure, 3 parts of corn straw, 5 parts of wheat straw, 10 parts of cake meal, 16 parts of humic acid, 3 parts of rice bran and 3 parts of peat by weight on different liquid organic fertilizers are shown in the following table 1:
Figure BDA0003272511250000081
according to the results in the table, as can be seen from the comparison between examples 1 to 4 and comparative examples 1 to 2, the staged fermentation production process of the liquid organic fertilizer can fully degrade organic matters to water-soluble organic carbon, nitrogen and amino acid which can be directly absorbed and utilized by plants, the content of crude fibers of the water-soluble organic carbon, nitrogen and amino acid is obviously reduced, the number of beneficial microorganisms in the liquid organic fertilizer is high, the number of pathogenic bacteria such as escherichia coli and pseudomonas is low, the stable storage of the liquid organic fertilizer is facilitated, the use is convenient and fast, the absorption is easy, and the fertilizer efficiency is fast; the results of example 4 and comparative example 3 are compared, and the results show that the fermentation effect of the production and preparation process of the liquid organic fertilizer is obviously superior to that of the traditional single fermentation process.
Respectively counting the preparation amounts of the liquid organic fertilizer obtained in different fermentation stages of the liquid organic fertilizer, and the results are shown in the following table 2:
Figure BDA0003272511250000091
as can be seen from the above table, according to examples 1 to 4, when the humidity in the fermentation chamber is 60%, the air pressure is 2.25Pa, and the temperature in the fermentation chamber reaches 45 ℃, the medium temperature fermentation tubes are added, and the temperature in the fermentation chamber reaches 55 ℃, and the high temperature fermentation tubes are added, the fermentation effect is the best, the prepared liquid organic fertilizer is the most, the amount of the liquid organic fertilizer in comparative examples 1 and 2 is reduced, the fertilizer obtained by natural cooling fermentation without performing secondary medium temperature fermentation in comparative example 2 is significantly reduced, and the liquid organic fertilizer obtained by the single fermentation process in comparative example 3 is significantly lower than that in example 4.
The liquid organic fertilizer prepared by the invention has long fertilizer effect time, can act in multiple directions, can be used for improving soil, can supplement various nutrient elements, can be conveniently and timely used, can be directly absorbed by plants, overcomes the defect of slow fertilizer effect of a solid organic fertilizer, has complete and reasonable nutrient components, is convenient to use compared with single water-soluble clothes, has obvious effect, does not produce side effect, has the advantage of convenient transportation, is easy to store after processing, can be directly used, and saves labor cost.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The production and processing technology of the liquid organic fertilizer is characterized by comprising the following steps:
s1, crushing the organic raw materials into granules, putting the granules into a fermentation bin, and adding an auxiliary agent into the fermentation bin;
s2, adding water vapor and air into the fermentation bin, keeping the mixture at low pressure, sealing and mixing, and performing natural primary fermentation;
s3, when the temperature in the fermentation bin reaches 42-48 ℃, adding medium-temperature fermentation bacteria in the fermentation bin, sealing and mixing, and performing medium-temperature fermentation;
s4, when the temperature in the fermentation bin reaches 52-58 ℃, adding high-temperature fermentation bacteria in the fermentation bin, sealing and mixing, and performing high-temperature fermentation;
s5, gradually cooling the temperature in the fermentation bin after the temperature in the fermentation bin rises to the maximum temperature of 60 ℃ in the fermentation process, and adding medium-temperature zymophyte into the fermentation bin again to perform secondary medium-temperature fermentation when the temperature in the fermentation bin is reduced to 42-48 ℃;
s6, in the whole fermentation process, carrying out stationary liquid separation at the bottom of the fermentation bin, and collecting fermentation liquor flowing out from the bottom of the fermentation bin to obtain a liquid organic fertilizer;
and S7, reducing the temperature in the fermentation bin to room temperature, and discharging no liquid organic fertilizer from the bottom of the fermentation bin, namely completing the fermentation preparation.
2. The production and processing technology of the liquid organic fertilizer as claimed in claim 1, wherein the auxiliary agent in the S1 is a fermented inorganic nutrient solution.
3. The production and processing technology of the liquid organic fertilizer as claimed in claim 1, wherein in the step S2, air in the fermentation bin is provided by a compressor, and the air pressure in the fermentation bin is 2.0-2.5 Pa.
4. The production and processing technology of the liquid organic fertilizer as claimed in claim 1, wherein the water vapor in the fermentation chamber during the fermentation process is controlled by a sprayer, and the humidity is 55-65%.
5. The production and processing technology of the liquid organic fertilizer as claimed in claim 1, wherein the mesophilic fermentation bacteria and the thermophilic fermentation bacteria are diluted into bacterial liquid by 80-100 volumes of water, and the bacterial liquid is added into the fermentation bin through a sprayer.
6. The production and processing technology of the liquid organic fertilizer as claimed in claim 1, wherein in S3, the addition amount of the mesophilic fermentation tubes is 2-4% of the mass of the fermentation substrate.
7. The production and processing technology of the liquid organic fertilizer as claimed in claim 1, wherein in the step S4, the addition amount of the high-temperature fermentation tubes is 1-3% of the mass of the fermentation substrate.
8. The production and processing technology of the liquid organic fertilizer as claimed in claim 1, wherein in the step S5, the addition amount of the mesophilic fermentation tubes is 0.8-1% of the mass of the fermentation substrate.
9. The process for producing and processing a liquid organic fertilizer as claimed in claim 1, wherein the mesophilic fermentation bacteria is any one or more of streptococcus thermophilus, lactococcus lactis and lactobacillus delbrueckii.
10. The process for producing and processing a liquid organic fertilizer as claimed in claim 1, wherein the thermophilic fermentation bacteria is any one or more of bacillus subtilis, bacillus licheniformis, streptococcus thermophilus and bacillus stearothermophilus.
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Application publication date: 20211217