KR20230090553A - Method for manufacturing functionalized wood particle for livestock barn flooring for accelerating decomposition and improving odor and method for manufacturing compost using functionalized wood particle - Google Patents

Abstract

A method for manufacturing functional wood flour for livestock barn flooring comprises the steps of: mixing raw wood flour having a moisture content of 60 % or more with a microorganism-enzyme mixture; aging the raw wood flour at 30 to 45 ℃ for 10 to 30 days; and drying and sterilizing the aged raw wood flour. The microorganism-enzyme mixture contains: a group of brown-rot fungi including at least one type of brown rot fungus; a group of white-rot fungi including at least one type of white-rot fungus; cellulase; and hemicellulase. In the microorganism-enzyme mixture, the group of brown-rot fungi and the group of white-rot fungi have the total number of fungi of 1 x 10^6 - 1 x 10^12 CFU/g. In the total number of fungi of the group of brown-rot fungi and the group of white-rot fungi, the number of fungi of the group of brown-rot fungi occupies 35-45 % and the group of white-rot fungi occupies 55-65 %. The mixing amount of the microorganism-enzyme mixture is 0.00005 to 0.0005 parts by weight based on 100 parts by weight of the raw wood flour.

Description

Manufacturing method of functional wood flour for barn rugs capable of accelerating ripening and improving odor and manufacturing method of compost using functional wood flour }

The present invention relates to a method for manufacturing functional wood flour, and more particularly, to a method for manufacturing functional wood flour for livestock litter mats capable of accelerating ripening and reducing odor, and a method for manufacturing compost using functional wood flour.

Recently, as the income of consumers increases and the standard of living improves, the tendency to pursue safer and higher quality food is getting stronger. In addition, the animal welfare policy goes beyond securing and guaranteeing space and introduces the concept of animal welfare into the breeding environment and continues to be strengthened. General people think that livestock raised in a suitable environment to which the concept of animal welfare is applied will be raised in a healthy way because they are less stressed and resistant to diseases, and that livestock products produced here will be more beneficial to our bodies. In addition, as environmental regulations are strengthened, regulations that affect the living environment, such as the strengthening of the Livestock Manure Act and the Air Quality Conservation Act, are continuously being strengthened. Accordingly, the manure must be treated while minimizing the normal handling of livestock manure and the generation of odor, and the environment around the livestock farm must be kept pleasant. As a result, livestock farmers are faced with a situation in which they must improve livestock environmental problems.

Improving the livestock environment means, first of all, to improve the breeding environment of target animals such as cows, pigs, and chickens, and to improve the working environment of workers. Furthermore, when the livestock environment is improved, the surrounding living environment is improved, which has a great impact on the general population. A typical example is Jeju Island. In the case of Jeju Island, where there are many tourists, in the Hallim area, where barn stalls are concentrated, complaints about odors from tourists overflow every year, and the civil service office in Jeju Island is paralyzed. As a result, the development and activation of tourism resources in the Hallim area are lagging behind. In order to improve this, Jeju-do organizes and executes a huge budget every year, but has not found a fundamental solution.

On the other hand, in the concept of circular agriculture, livestock manure should be viewed as a resource with excellent utilization value, not waste, and well-managed livestock manure is reborn as high-quality compost and sprinkled as basic fertilizer on farming soil or potted plants. . And the crops such as rice, beans, and barley grown in this way are again used as feed ingredients for livestock. This is the concept of circular farming. In the case of Korea, where the land is old, basic fertilizer must be supplied to the soil for farming, and additional fertilizer suitable for crops must be supplied separately. Therefore, circular farming can be said to be a very useful and necessary farming method. The basis of our country's agricultural policy is based on this type of circular agriculture. Therefore, it is very important to produce quality livestock manure compost using livestock manure.

Currently, livestock manure is mixed with sawdust and rice hulls for composting, which usually takes 6 to 8 months, and a strong odor is generated during this process. So, the compost is also the biggest cause of livestock odor. In addition, the surrounding area is contaminated due to the generated leachate, and it receives civil complaints from nearby residents. Therefore, the government is encouraging and supporting the installation of gas accumulation facilities, fine spray devices, air purifiers, etc. to remove the generated odor, but it is not possible due to high costs. Therefore, many livestock farms and compost producers are desperately in need of a method to efficiently solve these problems.

As such, there is a need to urgently improve the treatment of manure and odor generated in livestock farms, and there is no technology for simultaneously achieving rapid ripening of manure and reduction of odor.

The present invention is an invention invented to solve the above-mentioned problems, and an object of the present invention is to provide a method for producing functional wood flour capable of reducing rapid ripening and odor generated in a barn or composting field.

Another object of the present invention is to provide a method for producing compost using functional wood flour.

However, the problem to be solved by the present invention is not limited to the above-mentioned problem, and may be expanded in various ways without departing from the spirit and scope of the present invention.

In order to achieve the above-described object of the present invention, a method for producing functional wood flour for barn rugs according to an exemplary embodiment of the present invention includes mixing raw wood flour having a moisture content of 60% or more with a microorganism-enzyme mixture, the raw wood flour aging at 30 ° C to 45 ° C for 10 to 30 days and drying and sterilizing the aged raw wood flour. The microorganism-enzyme mixture includes a brown rot fungus group including at least one brown rot fungus, a white rot fungus group including at least one white rot fungus, cellulase and hemicellulase. In the microorganism-enzyme mixture, the total number of bacteria of the brown rot bacteria group and the white rot bacteria group is 1 × 10 ⁶ ~ 1 × 10 ¹² CFU / g, and in the total number of bacteria of the brown rot bacteria group and the white rot bacteria group, the The number of bacteria in the brown rot bacteria group is 35% to 45%, and the number of bacteria in the white rot bacteria group is 55% to 65%. The mixing amount of the microorganism-enzyme mixture is 0.00005 to 0.0005 parts by weight based on 100 parts by weight of the raw wood flour.

According to one embodiment, the brown rot fungus group includes at least one of Serpula lacrymans, Coniophora puteana, and Gloeophullum trabeum, and the white rot fungus group, It includes at least one of Pleurotus ostreatus, Trametes versicolor, and Phlebia tremellosa.

According to one embodiment, in the microorganism-enzyme mixture, the cellulase content is 1,000 units/g or more, and the hemicellulase content is 2,000 units/g or more.

According to one embodiment, the raw wood powder has an average length of 1 cm to 4 cm and an average diameter of 0.1 mm to 1 mm.

According to one embodiment, the moisture content of the raw wood flour is 60% to 90%.

As described above, the functional wood flour obtained according to exemplary embodiments of the present invention is decomposed by plant decomposing microorganisms and enzymes to have a sponge shape having pores, and thus allows air and moisture to penetrate well. . When such functional wood flour is used as barn bedding or used for compost production, the throughput of manure is increased, odor components can be adsorbed over a large surface area, and the ripening period can be greatly shortened.

1 is a flow chart illustrating a method of manufacturing functional wood flour for barn rugs according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Since the present invention can have various changes and various forms, specific embodiments are exemplified and described in detail in the text. However, this is not intended to limit the present invention to a specific form disclosed, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

Functional wood flour defined in the present specification may mean that other functions, such as accelerating decay and adsorbing odors, are added in addition to the function as a moisture regulator, which is the main function of existing wood flour, through chemical/physical modification of existing wood flour (sawdust).

In addition, decay as defined in this specification means that the physical structure of a plant is changed into an organic aggregate structure in a usable state in the soil, and the completion of decay in the evaluation of the degree of decay means that 80% or more of the structures have been converted. there is.

1 is a flow chart for explaining a method of manufacturing functional wood flour for barn rugs according to an embodiment according to an embodiment of the present invention.

Referring to Figure 1, first, raw wood powder is prepared by cutting or grinding wood. The raw wood powder may include various forms derived from wood. For example, the raw wood flour may be in the form of sawdust, planer shavings, chips, wood chips, etc., and may have various other forms.

According to one embodiment, the raw wood flour may be obtained by grinding raw wood or wood chips. For example, the raw wood flour may be derived from Oil Palm Tree (Elaesis guineensis). The raw wood powder may be prepared by removing the shell of the wood and slicing the central trunk through a chopping machine into an average length of 1 cm to 4 cm and an average diameter of 0.1 mm to 1 mm.

However, the embodiments of the present invention are not limited thereto, and various woods such as pine, cypress, cypress, cedar, birch, oak, and acacia may be used as raw materials for wood flour, but the decomposition rate and post-decomposition structure of the raw wood flour Considering that, it may be preferable to use soft wood.

Oil palm is a soft wood and may have a moisture content suitable for subsequent maturation stages.

The raw wood powder may be compressed to adjust the moisture content (S20). For example, wood flour obtained from the oil palm tree has a high moisture content. Therefore, it is possible to adjust the moisture content of the raw wood powder by compressing it with a press machine. According to one embodiment, the moisture content of the raw wood flour may be about 60% to 90%, more preferably about 70% to 80%. If the moisture content of the raw wood flour is too low, it is difficult to sufficiently progress aging, and if it is too high, the aging rate may be too fast.

If the raw wood flour has an appropriate moisture content depending on the state or type of wood, the pressing step may be omitted.

Next, the raw wood flour and the microorganism-enzyme mixture are mixed (S30).

The microorganism-enzyme mixture includes brown rot bacteria, white rot bacteria, cellulases and hemicellulases.

The brown rot fungus group includes at least one brown rot fungus, and the white rot fungus group includes at least one white rot fungus.

According to one embodiment, the brown rot fungus group may include at least one of Serpula lacrymans, Coniophora puteana, and Gloeophullum trabeum.

According to one embodiment, the white rot bacteria group may include at least one of Pleurotus ostreatus, Trametes versicolor, and Phlebia tremellosa.

According to one embodiment, in the total number of bacteria in the microorganism-enzyme mixture, the number of bacteria of the brown rot bacteria group may be 35% to 45%, and the number of bacteria of the white rot bacteria group may be 55% to 65%. In addition, the total number of strains (in strain powder state) may be 1×10 ⁶ to 1×10 ¹² CFU/g.

If the ratio of the brown rot bacteria is excessive, the decomposition rate of the wood flour may be delayed, and if the ratio of the white rot bacteria is excessive, the decomposition rate may be excessively increased and the color of the wood flour may be discolored (black).

The decay fungi may be used in liquid form or powder form containing fungal spores. For example, the decay bacteria may be obtained by collecting/cultivating humus soil or fallen leaves. However, embodiments of the present invention are not limited thereto, and can be obtained by various methods available, such as purchasing individual bacteria.

The microorganism-enzyme mixture further comprises cellulase and hemicellulase. According to one embodiment, the microorganism-enzyme mixture may include 1,000 units/g of cellulase and 2,000 units/g or more of hemicellulase. For example, the microorganism-enzyme mixture may include 1,000 units/g to 2,000 units/g of cellulase and 2,000 units/g to 3,000 units/g of hemicellulase. When the content of the hemicellulase is greater than the content of the cellulase, the aging rate may be increased.

The microorganism-enzyme mixture may be diluted and used. For example, when 1 kg of the microorganism-enzyme mixture is diluted in 1 ton of water (purified water, ground water, tap water, etc.), 0.5 L to 5 L of the diluted solution can be mixed per ton of wood flour. That is, the mixing amount of the microorganism-enzyme mixture per 1 ton of raw wood flour may be 0.5 g to 5 g. That is, the mixing amount of the microorganism-enzyme mixture may be 0.00005 to 0.0005 parts by weight based on 100 parts by weight of raw wood flour.

Next, the raw wood flour mixed with the microorganism-enzyme mixture is aged (S40). According to one embodiment, the aging may be carried out at 30 ° C to 45 ° C for 10 days to 30 days, preferably at 35 ° C to 40 ° C. When the aging temperature is low, the aging effect of the raw wood flour may be reduced, and when the temperature is high, the color of the raw wood flour may be discolored.

The aging is preferably carried out under light-shielding conditions (blocking sunlight), and it is preferable to turn upside down and stir once every 2 to 3 days.

Next, the aged wood flour is sterilized (S50). For example, high-temperature sterilization may be performed at 250° C. to 300° C. for 60 seconds to 120 seconds for wood flour that has been matured.

Next, the sterilized wood flour is dried (S60). The drying may be performed using a rotary dryer (hot air drying).

Through the above sterilization/drying, additional aging can be prevented and a form suitable for use can be maintained.

After being moved to a warehouse or the like, the dried/sterilized wood powder may be molded (compressed) and packaged in an appropriate form using a high-pressure compressor or the like.

The functional wood flour obtained through the above method uses soft wood as a basic raw material, and is decomposed by plant decomposing microorganisms and enzymes to have a sponge shape having pores, thereby allowing air and moisture to penetrate well. When such functional wood flour is used as barn bedding or used for compost production, the throughput of manure is increased, odor components can be adsorbed over a large surface area, and the ripening period can be greatly shortened.

According to one embodiment, the functional wood flour can be used as a barn rug. For example, when using the functional wood flour as a barn rug, it can be laid at a height of 10 cm or more from the floor, and when the livestock wakes up from lying down, it can be replaced if manure scabs adhere to the thighs (thighs), knees, and stomach. In addition, if the concrete floor of the barn floor is visible, an additional room should be installed to prevent the concrete floor from being exposed. The replaced livestock meal sawdust (functional wood flour mixed with livestock meal) is transported to a composting site for composting. According to the present invention, the composting of the livestock meal mixed with functional wood flour can be completed in 7 to 30 days after moving to the composting field, and thus the composting period can be greatly reduced compared to conventional compost production, and the generation of odor can be reduced. can

According to one embodiment, the functional wood flour may be separately used for preparing compost. For example, after mixing the functional wood flour and livestock meal in a weight ratio of 1:2 to 1:5, compost may be prepared through composting. If necessary, other materials may be added to balance the nutritional balance of the compost in addition to the functional wood flour.

According to the present invention, when compost is prepared using the functional wood flour. In 30 to 60 days after mixing, ripening can be completed regardless of the season, and the ripening period can be further shortened in the season of high temperature (summer). In addition, since the functional wood flour has a high ripening effect, it is economical because its amount is reduced compared to conventional sawdust.

Hereinafter, the performance of functional wood flour according to an embodiment of the present invention will be confirmed through experiments.

Example

Raw wood flour was prepared by removing the bark of Oil Palm Tree (Elaesis guineensis) and cutting the central trunk through a chopping machine into an average length of 1 to 4 cm and an average diameter of 0.1 to 1 mm.

In a 1-ton bucket, strain powder of a mixture of brown rot fungus (Serpula lacrymans, Coniophora puteana and Gloeophullum trabeum) and white rot fungus (Pleurotus ostreatus, Trametes versicolor and Phlebia tremellosa) cultured from humus soil (total number of strains about 1 × 10 ¹⁰ CFU/g, bacterial count ratio (approximately 40%: 60% of brown rot bacteria: white rot bacteria)) 1kg, Cellulases 1,000 units/g, Hemicellulases 2,000 units/g After adding 1 kg, 1 ton of purified water at room temperature was evenly mixed to prepare a mixed liquid formulation.

When the raw wood flour was put into the aging storage, it was passed through a fine spraying device, so that 1 L of the mixed liquid formulation was evenly finely sprayed on 1 ton of wood pieces, stirred first, and then aged at 35 ° C to 40 ° C for 20 days. While ripening, turn it upside down once every 2-3 days and cover it with a lid to block sunlight. The aged raw materials were dried at room temperature to a moisture content of 15%, and then high-temperature sterilization was performed at 250 to 300 ° C. for about 100 seconds.

As a result of testing the ammonia adsorption performance of the functional wood flour (21 ℃, 45% humidity, initial ammonia concentration 50 μmol / mol), it was confirmed that the ammonia concentration reduction rate was 99.5% after 30 minutes, indicating high ammonia removal performance.

In addition, when the functional wood flour and livestock meal (pig, cow) were mixed at a weight ratio of 1:4 and composting was performed, it was confirmed that compost could be quickly produced with a ripeness of 80% and a moisture content of 55% in 4 to 5 weeks. did

Although the above has been described with reference to the embodiments of the present invention, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the present invention described in the claims below. You will understand that you can.

Functional wood flour according to the above-described exemplary embodiments can be used for various purposes for ripening and odor removal. For example, the functional wood flour can be used as a livestock environment improvement material such as barn rugs and the like, and can be used to prepare compost using the same.

Claims (7)

Mixing raw wood flour with a moisture content of 60% or more and a microorganism-enzyme mixture;
Aging the raw wood flour at 30 ° C to 45 ° C for 10 to 30 days; and
Drying and sterilizing the aged raw wood flour,
The microorganism-enzyme mixture includes a brown rot fungus group including at least one brown rot fungus, a white rot fungus group including at least one white rot fungus, cellulase and hemicellulase,
In the microorganism-enzyme mixture, the total number of bacteria of the brown rot bacteria group and the white rot bacteria group is 1 × 10 ⁶ ~ 1 × 10 ¹² CFU / g, and in the total number of bacteria of the brown rot bacteria group and the white rot bacteria group, The number of bacteria in the brown rot bacteria group is 35% to 45%, and the number of bacteria in the white rot bacteria group is 55% to 65%,
Method for producing functional wood flour for barn bedding, characterized in that the mixing amount of the microorganism-enzyme mixture is 0.00005 to 0.0005 parts by weight with respect to 100 parts by weight of the raw wood flour. The method of claim 1, wherein the brown rot fungus group includes at least one of Serpula lacrymans, Coniophora puteana and Gloeophullum trabeum, and the white rot fungus group is A method for producing functional wood flour for barn litter, comprising at least one of Pleurotus ostreatus, Trametes versicolor, and Phlebia tremellosa. According to claim 1, wherein the content of the cellulase in the microorganism-enzyme mixture is 1,000 units / g or more, and the content of the hemicellulase is 2,000 units / g or more. manufacturing method. The method of claim 1, wherein the raw wood flour has an average length of 1 cm to 4 cm and an average diameter of 0.1 mm to 1 mm. The method of claim 4, wherein the raw wood flour has a water content of 60% to 90%. Mixing raw wood flour with a moisture content of 60% or more and a microorganism-enzyme mixture;
Aging the raw wood flour at 30 ° C to 45 ° C for 10 to 30 days;
drying and sterilizing the aged raw wood flour;
Mixing the aged raw wood flour with livestock flour at a weight ratio of 1:2 to 1:5; and
The ripening of the mixed raw wood flour and livestock flour includes the step of proceeding,
The microorganism-enzyme mixture includes a brown rot fungus group including at least one brown rot fungus, a white rot fungus group including at least one white rot fungus, cellulase and hemicellulase,
In the microorganism-enzyme mixture, the total number of bacteria of the brown rot bacteria group and the white rot bacteria group is 1 × 10 ⁶ ~ 1 × 10 ¹² CFU / g, and in the total number of bacteria of the brown rot bacteria group and the white rot bacteria group, The number of bacteria in the brown rot bacteria group is 35% to 45%, and the number of bacteria in the white rot bacteria group is 55% to 65%,
The method of producing compost, characterized in that the mixing amount of the microorganism-enzyme mixture is 0.00005 to 0.0005 parts by weight based on 100 parts by weight of the raw wood flour. The method of claim 6, wherein the brown rot fungus group includes at least one of Serpula lacrymans, Coniophora puteana and Gloeophullum trabeum, and the white rot fungus group is At least one of Pleurotus ostreatus, Trametes versicolor, and Phlebia tremellosa,
In the microorganism-enzyme mixture, the cellulase content is 1,000 units/g or more, and the hemicellulase content is 2,000 units/g or more,
The method of producing compost, characterized in that the raw wood powder has an average length of 1 cm to 4 cm and an average diameter of 0.1 mm to 1 mm.

Images