KR102470774B1 - Manufacturing method of animal manure compost - Google Patents

Abstract

The present invention relates to a preparing method of livestock manure compost, and more specifically to the preparing method of livestock manure compost which can provide an excellent effect in germination and growth of plants while minimizing occurrence of odors from livestock manure. The preparing method comprises: a raw material mixing step of preparing a primary mixture by mixing and stirring livestock manure, waste mushroom medium, and sawdust; an inoculation step of spraying a microbial culture solution on the primary mixture; a composting step of preparing a secondary mixture by mixing and stirring the primary mixture sprayed with the microbial culture solution; a fermentation step of preparing a tertiary mixture by ripening the secondary mixture under oxygen supply; and a step of obtaining livestock meal compost by aging the tertiary mixture. The compost can be prepared which is capable of stabilizing the soil and provides an excellent effect in germination and growth of plants.

Description

Livestock meal compost manufacturing method {MANUFACTURING METHOD OF ANIMAL MANURE COMPOST}

The present invention relates to a method for manufacturing livestock meal compost, and more particularly, to a method for preparing livestock meal compost, which can provide excellent effects in terms of germination and growth of plants while minimizing generation of odor from livestock meal.

In general, livestock meal is feces of livestock such as cows, pigs, chickens, etc. As the demand for livestock products increases, the breeding scale of livestock increases, so the amount of livestock meal generated in livestock facilities is also increasing.

On the other hand, livestock farms serve as an excellent source of protein for the public, but are driven out as the main culprit of odor generation and environmental pollution due to livestock meal. However, when raising livestock, what is unavoidably generated is livestock meal. As livestock farmers are essential for a stable supply of livestock products, it is time for both livestock farmers and the government to make efforts to minimize problems rather than excessive regulation due to odor.

Looking at the current status and causes of odors in livestock farms, in the past, it was considered that odors in livestock farming could occur naturally during livestock farming. It became. For this reason, the government prepares management regulations for livestock meal and odor-emitting facilities that cause odor in various laws, such as the 'Act on the Management and Use of Livestock Meal,' 'Rules on Promotion of Recycling and Utilization of Livestock Meal,' and 'Odor Prevention Act.' is being implemented.

On the other hand, the average amount of livestock meal produced per day by all livestock farms in Korea is 185,069 m3 (as of 2018), which has consistently exceeded 170,000 m3 since 2011, and in 2018, the 180,000 m3 wall was also broken. As such, the number of livestock farms is gradually decreasing, but as the scale of the livestock industry increases, the amount of livestock meal is rather increasing, and about 40% of the livestock meal is known to occur in pig farms.

As a result, complaints about bad odors caused by livestock meal are also increasing every year. The number of livestock odor complaints compiled by the Ministry of Environment is on the rise, from 2838 in 2014 to 4323 in 2015, 6398 in 2016, 6112 in 2017, and 6718 in 2018.

In addition, while the amount of livestock meal production is on the rise, ocean dumping is prohibited from 2012, and marine emissions of livestock meal are expected to decrease. As a result, alternatives to livestock meal treatment methods are required, and resolution of the ocean dumping ban problem Interest and research on anaerobic digestion of livestock meal, which can achieve the effect of killing two birds with one stone, such as biogas production, is steadily progressing. Because it is slow, it has problems such as bulking up the digestive system.

That is, therefore, there is a continuous demand for a new method capable of effectively processing livestock meal that causes environmental pollution and odor.

Republic of Korea Patent Publication No. 10-2021-0091377

The present invention is to solve the above problems, and to provide a livestock meal compost manufacturing method capable of effectively treating livestock meal that can cause environmental pollution by composting and minimizing the generation of odor.

The above and other objects and advantages of the present invention will become apparent from the following description of preferred embodiments.

The above object is a raw material mixing step of preparing a primary mixture by mixing and stirring livestock meal, mushroom waste medium, and sawdust; An inoculation step of spraying a microbial culture solution on the primary mixture; A composting step of preparing a secondary mixture by mixing and stirring the primary mixture sprayed with the microbial culture solution; A fermentation step of ripening the secondary mixture under oxygen supply to prepare a tertiary mixture; and aging the tertiary mixture to obtain livestock meal compost.

Specifically, the livestock meal may include at least one selected from the group consisting of pig manure, chicken manure, cow manure, dog manure, dust, breeding animal manure, meat animal manure, and combinations thereof.

Specifically, the moisture content of the secondary mixture may be characterized in that it is maintained in the range of 50% to 60%.

Specifically, the microbial culture medium, preparing a solid medium aqueous solution by mixing the solid medium and purified water; Pasteurizing the solid medium aqueous solution; cooling the pasteurized solid medium aqueous solution; Injecting microorganisms into the cooled solid medium aqueous solution; It may be characterized in that it is obtained by a method comprising; and culturing the solid medium solution into which the microorganisms are added for 24 to 48 hours to obtain a microbial culture medium.

Preferably, the microorganism is an aerobic microorganism including at least one selected from the group consisting of photosynthetic bacteria, actinomycetes, Pseudomonas aeruginosa, lactic acid bacteria, filamentous bacteria, algae, and combinations thereof; anaerobic microorganisms including at least one selected from the group consisting of Escherichia coli, Bacillus subtilis, yeast, Pseudomonas genus, Salmonella genus, and combinations thereof; Or it may be characterized in that it is a supplementary active microorganism comprising at least one selected from the group consisting of Penicillium bacteria, Neurospora bacteria, and combinations thereof.

According to the present invention, it is possible to stabilize the soil in a short time by using livestock meal generated in a large amount in livestock facilities, and to prepare compost that exhibits particularly excellent effects in terms of germination and growth of plants.

According to the present invention, the manufacturing method is effective in terms of resource reuse as well as preventing environmental pollution by efficiently reducing and treating odors generated from livestock meal.

However, the effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 is a flow chart showing a method for manufacturing livestock meal compost according to an embodiment of the present invention.
2 is a photograph showing a method for manufacturing livestock meal compost according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to embodiments and drawings of the present invention. These examples are only presented as examples to explain the present invention in more detail, and it will be apparent to those skilled in the art that the scope of the present invention is not limited by these examples. .

In addition, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of skill in the art to which this invention belongs, and in case of conflict, this specification including definitions of will take precedence.

In order to clearly explain the proposed invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification. And, when a certain component is said to "include", this means that it may further include other components without excluding other components unless otherwise stated. Also, a “unit” described in the specification means one unit or block that performs a specific function.

In each step, the identification code (first, second, etc.) is used for convenience of description, and the identification code does not describe the order of each step, and each step does not clearly describe a specific order in context. It may be performed differently from the order specified above. That is, each step may be performed in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

Hereinafter, embodiments and embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. However, it may not be limited to these implementations and examples and drawings herein.

One aspect of the present application is a raw material mixing step of preparing a primary mixture by mixing and stirring livestock meal, mushroom waste medium, and sawdust; An inoculation step of spraying a microbial culture solution on the primary mixture; A composting step of preparing a secondary mixture by mixing and stirring the primary mixture sprayed with the microbial culture solution; A fermentation step of ripening the secondary mixture under oxygen supply to prepare a tertiary mixture; and obtaining livestock meal compost by aging the tertiary mixture.

According to the present invention, it is possible to stabilize the soil in a short time using livestock meal generated in large quantities in livestock facilities and to prepare compost that exhibits particularly excellent effects in terms of germination and growth of plants. It is effective in terms of resource reuse as well as preventing environmental pollution by efficiently reducing and treating odors.

Hereinafter, a livestock meal compost manufacturing method according to the present invention will be described in detail with reference to FIG. 1 .

First, a primary mixture is prepared by mixing and stirring livestock meal, waste mushroom medium, and sawdust.

In one embodiment, the livestock meal may include one or more selected from the group consisting of pig manure, chicken manure, cow manure, dog manure, dust, breeding animal manure, meat animal manure, and combinations thereof. Specifically, the livestock meal may include chicken manure, but is not limited thereto.

As a component of the primary mixture, chicken manure is an excellent fertilizer resource because it contains organic matter, is rich in organic matter and contains a large amount of elements necessary for crops, improves soil fertility, improves soil structure, and improves soil It has the ability to enhance sustainable production capacity.

In particular, because the intestines of chickens are short, the ability to digest and absorb feed is reduced, so about 70% of undigested feed is discharged as feces. According to the analysis, naturally dried chicken manure contains about 26% of crude protein, which corresponds to about 57 to about 66% of soybean meal. In addition, amino acids in proteins are also relatively complete, especially lysine (0.51%), methionine and cystine. In addition, the chicken manure is rich in B-group vitamins, minerals and trace elements.

In one embodiment, the chicken manure may be detoxified through fermentation or drying. The harmless treated chicken manure has a good fertilizer effect when fertilized in the field, increases the duration of specific power, improves the yield of crops, increases the organic content in the soil, reduces soil hardening due to the use of chemical fertilizers, and improves the soil structure can be improved.

In one embodiment, the chicken manure may be detoxified by natural drying or drying through a drying machine. For example, when using a drying machine, the chicken manure may be dried at about 80 ° C for about 10 hours, at about 120 ° C for 2 hours, or at 200 ° C for about 15 minutes. About 40 to about 50% by weight of rice bran or wheat bran is sprinkled into it, dried in the sun, then impurities are removed, and it can be put in a bag and stacked in a dry place.

As a component of the primary mixture, sawdust is a by-product generated during processing such as cutting, polishing, and sanding wood, and is composed of fine wood particles and has excellent moisture absorption performance when added to the livestock meal compost manufacturing process. can be used as a regulator. In addition, since the sawdust contains a carbon source, it can be fermented together with livestock meal later, so that it can be used as a compost that can improve soil by supplying nutrients to the soil.

As a component of the primary mixture, the mushroom waste medium refers to a medium generated after mushroom cultivation, and is one of the wastes that cause environmental pollution and civil complaints by generating leachate and odor. Accordingly, the method for producing livestock meal compost according to the present invention can exhibit effects of preventing environmental pollution, reducing costs, and improving farm household income by composting waste.

In one embodiment, the livestock meal, mushroom waste medium, and sawdust may be mixed in a weight ratio of about 1 to 10: about 1 to 5: about 1 to 5. The weight ratio of the livestock meal, mushroom waste medium, and sawdust is for exerting the optimal growth and growth effect of the livestock meal compost produced, and if the weight ratio is out of the above-mentioned weight ratio, the growth and growth effect of the livestock meal compost produced may not be sufficiently exhibited. . Preferably, the livestock meal, waste mushroom medium, and sawdust may be mixed in a weight ratio of about 7:2:1.

In one embodiment, mixing and stirring the primary mixture may be performed for about 1 hour to about 12 hours. If the mixing and stirring is performed for less than about 1 hour, the components of the primary mixture may not be easily mixed, and if it exceeds about 12 hours, excessive heat may be generated.

Next, the primary mixture prepared by mixing and stirring the livestock meal, mushroom waste medium, and sawdust is inoculated by spraying a microbial culture medium. The microbial culture medium refers to a liquid in which microorganisms are cultured after inoculation, and the primary mixture may be decomposed and composted by microorganisms included in the culture medium of the microorganisms.

In one embodiment, the microbial culture medium, preparing a solid medium aqueous solution by mixing the solid medium and purified water; Pasteurizing the solid medium aqueous solution; cooling the pasteurized solid medium aqueous solution; Injecting microorganisms into the cooled solid medium aqueous solution; It may be obtained by a method including; and culturing the solid medium solution into which the microorganism is added for about 24 hours to about 48 hours to obtain a microbial culture medium.

In one embodiment, the solid medium can be used without limitation as long as it contains nutritional conditions suitable for culturing and separating microorganisms, for example, pectin, carrageenan, pullulan, agar, and gum. can

In one embodiment, the step of pasteurizing the solid medium solution may be performed at a temperature range of about 60 ° C to about 90 ° C for about 1 minute to about 30 minutes. If the pasteurization is performed at a temperature of less than about 60° C. for less than about 1 minute, unwanted microorganisms may be incubated together, and when the pasteurization is performed at a temperature greater than about 90° C. for more than about 30 minutes, microorganisms may be undesirable. growth rate may decrease.

In one embodiment, the step of cooling the pasteurized solid medium solution may be performed to about 30 ° C. For example, the solid medium solution pasteurized for about 1 minute to about 30 minutes in the temperature range of about 60 ° C. to about 90 ° C. may be cooled using a cooler or a low-temperature water bath until it reaches about 30 ° C. .

In one embodiment, the microorganism is included to decompose and compost the mixture, for example, at least one selected from the group consisting of photosynthetic bacteria, actinomycetes, Pseudomonas aeruginosa, lactic acid bacteria, filamentous bacteria, algae, and combinations thereof. Aerobic microorganisms containing; anaerobic microorganisms including at least one selected from the group consisting of Escherichia coli, Bacillus subtilis, yeast, Pseudomonas genus, Salmonella genus, and combinations thereof; Or it may be characterized in that it is a supplementary active microorganism comprising at least one selected from the group consisting of Penicillium bacteria, Neurospora bacteria, and combinations thereof. Specifically, the microorganism may include one or more selected from the group consisting of bacillus subtilis, yeast, photosynthetic bacteria, and combinations thereof.

In one embodiment, the culturing may be performed for about 24 hours to about 48 hours depending on the type of microorganism to be inoculated. For example, when yeast is inoculated as the microorganism, the culture may be performed for about 32 hours, when Bacillus subtilis is inoculated, for about 48 hours, and when photosynthetic bacteria are cultured, it may be performed for about 48 hours.

In one embodiment, the microbial culture medium may be sprayed on the primary mixture, for example, it may be sprayed on the primary mixture through ultrasonic spray or spray atomization.

In one embodiment, before the step of spraying the microbial culture solution onto the primary mixture, a step of adding trace elements to the primary mixture and mixing and stirring may be further included. The trace element serves to increase the efficiency of composting by the microbial culture broth later, and the yield of the obtained compost can be increased by adding the trace element.

In one embodiment, the trace elements are manganese chloride tetrahydrate (MnCl ₂ 4H ₂ O), boric acid (H ₃ BO ₃ ), zinc chloride (ZnCl ₂ ), copper chloride (CuCl ₂ ), sodium molybdate 2 hydrate (NaMO ₄ 2H ₂ O), cobalt chloride hexahydrate (CoCl ₂ 6H ₂ O), nickel chloride hexahydrate (NiCl ₂ 6H ₂ O), sodium selenite (Na ₂ SeO ₃ ), and their It may include one or more selected from the group consisting of combinations, but is not limited thereto.

In one embodiment, the trace element may be included in about 0.1 to 3 parts by weight based on the total 100 parts by weight of the primary mixture. If the amount of the trace element is less than about 0.1 parts by weight, the effect of increasing the compost yield may not be sufficiently exhibited, and if the amount exceeds about 3 parts by weight, the compost yield may decrease.

In one embodiment, before the step of spraying the microbial culture solution onto the primary mixture, a step of mixing and stirring by adding activated carbon to the primary mixture may be further included. The activated carbon exhibits a high deodorizing effect, and the activated carbon may be added to the primary mixture to adsorb and remove odor-causing substances generated from livestock meal during mixing and stirring by the activated carbon.

In one embodiment, the activated carbon may specifically mean powdery impregnated activated carbon. The powdery impregnated activated carbon may be characterized in that an adsorbent including one or more alkali metal hydroxides or carbonates is evenly impregnated and contained in the activated carbon. For example, the alkali metal hydroxide or alkali metal carbonate is It may be at least one selected from the group consisting of lithium, sodium hydroxide, potassium hydroxide, lithium carbonate, sodium carbonate, potassium carbonate, sodium hydrogen carbonate, and combinations thereof, and preferably, lithium hydroxide is evenly impregnated and contained in activated carbon. It may mean powdery impregnated activated carbon.

In one embodiment, the powdery impregnated activated carbon comprises: injecting the activated carbon into an aqueous solution containing the impregnated material; adsorbing the adsorbed substance to the activated carbon by heating and stirring the aqueous solution containing the adhering substance and the activated carbon; and drying and pulverizing the adsorbed activated carbon.

For example, the powdery impregnated activated carbon is prepared by adding activated carbon to an aqueous solution of lithium hydroxide as an adhering material and heating the aqueous solution of lithium hydroxide into which the activated carbon is added at a temperature range of about 50 ° C to 150 ° C at a rate of about 50 to about 500 rpm to adsorb lithium hydroxide on the activated carbon, and evaporate and dry the lithium hydroxide-adsorbed activated carbon in a dryer in a temperature range of about 60 ° C to about 120 ° C for about 1 hour to about 12 hours, and then drying using a grinder It may be obtained by grinding to have a particle diameter of about 50 to about 150 mesh.

In one embodiment, the particle size of the powdery impregnated activated carbon may be in the range of about 50 to 150 mesh. If the particle diameter of the powdery impregnated activated carbon is less than about 50 mesh or greater than about 150 mesh, the deodorizing effect of the powdered impregnated activated carbon may decrease.

In one embodiment, the activated carbon may be included in about 0.1 to 5 parts by weight based on 100 parts by weight of the total of the first mixture. If the activated carbon is included in an amount of less than about 0.1 parts by weight, the deodorizing effect of the activated carbon may not be sufficiently exhibited, and if it exceeds about 5 parts by weight, a phenomenon in which the composting yield may decrease may occur.

In one embodiment, in the inoculation step in which the microbial culture medium is sprayed on the primary mixture, plant essential oil may be further sprayed together with the microbial culture medium.

The plant essential oil means that it is extracted by distillation and purification of plants having a strong deodorizing effect, for example, distillation of one or more plants selected from the group consisting of cypress, eucalyptus, lavender, cedarwood, and combinations thereof. It may include those extracted by purification. Specifically, the plant essential oil may include cedarwood essential oil extracted by refining cedarwood wood, roots, sawdust, etc. by steam distillation.

In one embodiment, the plant essential oil may be further included in about 10 to about 20 parts by weight based on 100 parts by weight of the total microbial culture medium. If the plant essential oil is included in less than about 10 parts by weight, the odor reduction effect due to the additional inclusion of the plant essential oil may not be sufficiently exhibited, and if it exceeds about 20 parts by weight, manufacturing cost may be excessively increased.

Next, a secondary mixture is prepared by mixing and stirring the primary mixture sprayed with the microbial culture medium. The mixing and stirring is a composting step in which the primary mixture is decomposed by microorganisms contained in the microbial culture medium, and the ratio of carbon to nitrogen, acidity, moisture content, and air permeability may be important factors. For example, the composting step in which the secondary mixture is prepared may be performed under continuous oxygen supply.

In one embodiment, the moisture content of the secondary mixture may be maintained in the range of about 50% to about 60%. If the moisture content is less than about 50% or greater than about 60%, composting is not easily performed, and the yield of compost produced later may decrease.

In one embodiment, the step of mixing and stirring the primary mixture sprayed with the microbial culture medium may be performed for about 10 days to about 30 days. If the mixing and stirring is performed for less than about 10 days, composting by microorganisms may not sufficiently proceed, and if the time exceeds about 30 days, too much heat may be generated.

Next, the prepared secondary mixture is matured to prepare a tertiary mixture. For example, the secondary mixture prepared under mixing and stirring may be moved to a post-ripening field and matured under oxygen supply. The post-maturation may be performed for about 10 days to about 60 days under normal supply, and if the post-maturation is performed for less than about 10 days or more than 60 days, the yield of the compost produced may decrease.

Finally, the tertiary mixture prepared by aging is aged to obtain livestock meal compost. The tertiary mixture may be moved to a treatment plant and aged by turning over once every about 3 to about 10 days, and compost produced by decomposing undecomposed components by microorganisms as the final aging step is performed. It may be to increase the yield of.

Hereinafter, the configuration of the present invention and its effects will be described in more detail through specific examples and comparative examples. However, these examples are for explaining the present invention in more detail, and the scope of the present invention is not limited to these examples.

[Example 1]

First, a first mixture was prepared by stirring and mixing chicken manure collected directly from the laying hen farm with waste mushroom medium and sawdust at a weight ratio of 7: 2: 1 for 7 hours.

Next, the solid medium aqueous solution prepared by mixing the solid medium and purified water was pasteurized at 80° C. for 20 minutes, and then cooled to 30° C. After separately inoculating yeast, Bacillus subtilis, and photosynthetic bacteria as microorganisms into the cooled solid medium aqueous solution, the three solid medium aqueous solutions inoculated with microorganisms were inoculated for 32 hours in the case of yeast, 48 hours in the case of Bacillus subtilis, and 48 hours in the case of photosynthetic bacteria. Cultured for a period of time to prepare a microbial culture medium. The resulting yeast culture, Bacillus subtilis culture, and photosynthetic bacteria culture were mixed at a volume ratio of 1:1:1, respectively, and used as a microbial culture medium.

A secondary mixture was prepared by misting the microbial culture solution through a spray on the prepared primary mixture and then stirring and mixing for 20 days while maintaining the moisture content at 50% to 60%. The prepared secondary mixture was moved to a post-ripening plant and matured for 30 days under oxygen supply, and was aged by turning over once a week until the moisture content reached 20% in a post-ripening treatment plant to obtain livestock meal compost of Example 1. did

[Example 2]

The chicken manure collected directly from the laying hen farm is dried at 120℃ for 2 hours through a drying machine to be harmless, and then the harmless chicken manure is mixed with waste mushroom medium and sawdust for 7 hours at a weight ratio of 7:2:1. While stirring and mixing to prepare a primary mixture. About 0.5 parts by weight of manganese chloride tetrahydrate (MnCl ₂ ·4H ₂ O) was added to the prepared primary mixture, based on 100 parts by weight of the entire primary mixture, and mixed with stirring for 1 hour. After stirring and mixing, the same microbial culture medium as in Example 1 and 15 parts by weight of cedarwood essential oil based on 100 parts by weight of the total microbial culture medium were mist-sprayed through a spray, and then the moisture content was maintained at 50% to 60% for 20 days. A secondary mixture was prepared by stirring and mixing. The prepared secondary mixture was moved to a post-ripening plant and matured for 30 days under oxygen supply, and was aged by turning over once a week until the moisture content reached 20% in a post-ripening treatment plant to obtain livestock meal compost of Example 2. did

[Example 3]

The chicken manure collected directly from the laying hen farm is dried at 120℃ for 2 hours through a drying machine to make it harmless, and then stirred and mixed with mushroom waste medium and sawdust for 7 hours at a weight ratio of 7:2:1 for the first A mixture was prepared. To the prepared primary mixture, about 0.5 parts by weight of manganese chloride tetrahydrate (MnCl ₂ 4H ₂ O) and 2.5 parts by weight of powdered lithium hydroxide impregnated activated carbon (65 mesh) were added to the total 100 parts by weight of the primary mixture for 1 hour. while stirring and mixing. After stirring and mixing, the same microbial culture medium as in Example 1 and 15 parts by weight of cedarwood essential oil based on 100 parts by weight of the total microbial culture medium were misted through a spray, and then maintained at 50% to 60% for 20 days A secondary mixture was prepared by stirring and mixing. The prepared secondary mixture was moved to a post-ripening plant and matured for 30 days under oxygen supply, and was aged by turning over once a week until the moisture content reached 20% in a post-ripening treatment plant to obtain livestock meal compost of Example 3. did

[Comparative example]

First, a mixture was prepared by stirring and mixing chicken manure and sawdust at a weight ratio of 5: 1, and then 20 parts by weight of Bacillus subtilis was added to 100 parts by weight of the mixture and mixed and stirred for 25 days to compost. The composted mixture was matured at room temperature for 30 days and turned over once a week until the moisture content reached 20%, thereby obtaining livestock meal compost of Comparative Example.

[Experimental Example 1: Crop Growth Comparison Experiment]

The livestock manure compost prepared in the above Examples and Comparative Examples was mixed with general soil at a ratio of 10: 1 to prepare culture soil, and then, after planting carrots as crops in the culture soil, the results were compared. . As a control group for the experimental group, general soil not mixed with organic fertilizer was used. The amount of treatment was based on 800 kg/200 pyeong, and water was supplied for 70 days after planting on the 14th day after fertilization. The results are shown in Table 1 below.

division Leaf length (cm) Leaf width (cm) live weight (g) control group 3.1 0.6 7.5 Example 1 16.7 4.7 123.1 Example 2 18.2 5.1 129.6 Example 3 23.5 5.8 133.7 comparative example 9.1 3.5 105.1

As shown in Table 1, in the case of the livestock manure compost according to the present invention, it was confirmed that the growth of cultivated crops was significantly higher than that of the soil using the livestock manure compost of the control and comparative examples.

[Experimental Example 2: Component Analysis of Organic Fertilizer]

For each of the livestock manure composts prepared in the above Examples and Comparative Examples, moisture, nitrogen, organic matter, and C/N ratio were measured through component analysis, and the results are shown in Table 2.

ingredient Example 1 Example 2 Example 3 comparative example moisture 50.2 50.0 48.9 57.6 nitrogen 1.62 1.74 1.83 1.09 organic matter (%) 52.0 49.7 53.2 48.6 C/N ratio 32.1 28.6 29.1 44.6

As shown in Table 2, in the case of the livestock manure compost prepared by the method according to the present invention, it was confirmed that it exhibited high nitrogen content, organic matter content, and low C / N ratio compared to the comparative example, indicating excellent quality.

[Experimental Example 3: Measurement of odor reduction effect]

Samples were taken on days 0, 5, 10, 20, and 30 in the process of preparing livestock manure compost in the above Examples and Comparative Examples. For samples, an impinger containing 10 ml of 5% sulfuric acid solution and a trap containing 100 g of silica gel were connected to a suction pump with a polyethylene suction pipe, and air samples were taken in the compost production space. At this time, the flow rate of the suction pump was 1.8 to 2.0 L/min, and sampling was performed for 10 to 20 minutes. Ammonium ions formed in the absorbent were analyzed by ion chromatography, and then the ammonium ion concentration was converted into ammonia concentration. The results are shown in Table 3 (ammonia concentration: ppm).

ingredient 0 days 5 days 10 days 20 days 30 days Example 1 35 32 29 19 17 Example 2 36 31 27 17 13 Example 3 35 26 21 12 10 comparative example 35 33 29 27 25

Looking at the results of Table 3, it was found that the reduction effect of ammonia, a malodorous substance, was greater when the livestock manure compost was prepared according to the method according to the present invention, compared to the comparative example.

In this specification, only a few examples of various embodiments performed by the present inventors are described, but the technical spirit of the present invention is not limited or limited thereto, and can be modified and implemented in various ways by those skilled in the art, of course.

Claims (5)

A raw material mixing step of preparing a primary mixture by mixing and stirring chicken manure, waste mushroom medium, and sawdust;
Adding 0.1 to 3 parts by weight of manganese chloride tetrahydrate based on 100 parts by weight of the first mixture to the first mixture and mixing and stirring;
Inoculation step of spraying 10 to 20 parts by weight of cedarwood essential oil based on 100 parts by weight of the microbial culture medium and the microbial culture medium in the primary mixture mixed with manganese chloride tetrahydrate;
A composting step of preparing a secondary mixture by mixing and stirring the primary mixture sprayed with the microbial culture medium and cedarwood essential oil;
A fermentation step of preparing a tertiary mixture by ripening the secondary mixture under oxygen supply for 10 to 60 days; and
Aging the tertiary mixture to obtain livestock meal compost;
As a livestock meal compost manufacturing method comprising a,
The chicken manure was detoxified by drying at 120 ° C. for 2 hours,
Characterized in that the moisture content of the secondary mixture is maintained in the range of 50% to 60%,
Livestock meal compost manufacturing method.
delete delete The method of claim 1, wherein the microbial culture medium,
Preparing a solid medium aqueous solution by mixing the solid medium and purified water;
Pasteurizing the solid medium aqueous solution;
cooling the pasteurized solid medium aqueous solution;
Injecting microorganisms into the cooled solid medium aqueous solution; and
A method for producing livestock meal compost, characterized in that it is obtained by a method comprising: obtaining a microbial culture medium by culturing the solid medium solution into which the microorganisms are added for 24 to 48 hours.
The method of claim 4, wherein the microorganism,
aerobic microorganisms including at least one selected from the group consisting of photosynthetic bacteria, actinomycetes, Pseudomonas aeruginosa, lactic acid bacteria, filamentous bacteria, algae, and combinations thereof; anaerobic microorganisms including at least one selected from the group consisting of Escherichia coli, Bacillus subtilis, yeast, Pseudomonas genus, Salmonella genus, and combinations thereof; or a supplementary active microorganism comprising at least one selected from the group consisting of Penicillium bacteria, Neurospora bacteria, and combinations thereof.

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