JP2016144411A - Method for manufacturing organic material, organic material, and recycling system of used bedding material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively utilize bedding materials after using, especially excrement of livestock.SOLUTION: A method for manufacturing organic materials includes a decomposition step of decomposing organic substances. The decomposition step is performed by aerobically decomposing the organic substances with lactic acid bacteria which are included in excrement by supplying lactic acid bacteria and breeding livestock. It is preferable to supply lactic acid bacteria to livestock by giving livestock animal feed which is mixed with a solid lactic acid bacterium material of 0.01 volume part-2.0 volume parts based on 100 volume parts of animal feed excluding lactic acid bacteria. It is preferable that the method further includes a fermentation step of anaerobically fermenting used bedding materials used for breeding livestock before performing the decomposition step. The decomposition step is performed by aerobically decomposing the used bedding materials after the fermentation step. The aerobic decomposition is desirably performed under a fine aerobic condition of an oxygen pressure of 10% or less. In the decomposition step, mineral water is preferably sprayed to the organic substances.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an organic material such as a covering material and a fertilizer for raising livestock obtained by aerobically decomposing an organic matter with livestock excrement, and a method for producing the same. The present invention further relates to a recycling system for used floor coverings used for raising livestock.

  In the livestock industry including beef cattle management and dairy farming management, woody materials such as sawdust, sawdust and bark are used as livestock bedding in livestock barns. This laying material needs to be replaced periodically because it is contaminated by livestock excrement and the like after a certain period of use. In this case, a part of the used flooring material is used as a fertilizer, but the rest is dumped through a process such as incineration. However, along with the shortage of dumping places, proper management and effective use of used flooring materials, especially livestock excrement, is required based on the “Law Concerning Appropriate Management of Livestock Excretion and Promotion of Use”.

Japanese Patent No. 3385263 JP 2010-208893 A JP 2014-39526 A

  An object of the present invention is to effectively use a used floor covering, in particular, livestock excrement.

  The method for producing an organic material according to the present invention is a method for producing an organic material having a decomposition step for decomposing an organic substance, and the decomposition step includes lactic acid bacteria included in the excrement by donating lactic acid bacteria and raising livestock. Thus, the organic substance is aerobically decomposed.

  The organic material of the present invention is obtained by aerobically decomposing organic matter with lactic acid bacteria included in the excrement by donating lactic acid bacteria and raising livestock.

  The used bedding material recycling system of the present invention favors a fermenting process in which used bedding material used for raising livestock is anaerobically fermented and an excrement of livestock donated with lactic acid bacteria after the fermentation process. The organic material obtained by the manufacturing method of the machine material including the decomposition | disassembly process decomposed | disassembled is used as a covering material for livestock, or a covering material raw material.

  ADVANTAGE OF THE INVENTION According to this invention, a used covering material, especially a livestock excrement can be used effectively.

It is a flow of an example of the manufacturing method of the organic material which is the 1st Embodiment of this invention. FIG. 2A is a cross-sectional view schematically showing a fermentation chamber for explaining the fermentation process, and FIG. 2B is a cross-sectional view schematically showing the decomposition chamber for explaining the decomposition step. It is typical sectional drawing which shows an example of the separation apparatus for obtaining a liquid material and a solid material from the organic material after a decomposition | disassembly process. It is typical sectional drawing for demonstrating the method to obtain a liquid material and a solid material from an organic material using the separation apparatus shown in FIG.

  Hereinafter, preferred embodiments of the present invention will be described in detail as first to fourth embodiments.

[First Embodiment]
The present embodiment is a method for producing an organic material from a litter (hereinafter also referred to as “used litter”) used for raising livestock. In this production method, as shown in FIG. 1, used bedding material of livestock bred with lactic acid bacteria is collected, and an organic material is obtained from this used bedding material through a fermentation process and a decomposition process.

<Livestock breeding>
Livestock is raised in barns with floor coverings. Here, “livestock” means beasts raised and used by humans. In the present invention, the type of livestock is not particularly limited, but examples of livestock include cows, pigs, chickens, horses, sheep, and goats, with cows, pigs and chickens being preferred.

  Examples of the “laying material” in the present invention include wood materials such as sawdust, sawdust, crushed bark (bark chips), and crushed wood (wood chips). The crushed bark and crushed wood are preferably crushed thinned wood from the viewpoint of effective utilization of materials. These wood materials may be used singly or in combination of a plurality of types, or may be used in combination with other materials. Examples of other materials include rice husk, rice bran, rice bran, and pulverized paper. Of course, other materials may be used as the flooring material without using the wood material.

(Provision of lactic acid bacteria)
The supply of lactic acid bacteria to livestock is performed by adding lactic acid bacteria to livestock feed. It is preferable to mix | blend the lactic acid bacteria with a feed by mixing solid lactic-acid-bacteria materials, such as granular and lump shape, with respect to feed other than lactic acid bacteria. As a compounding quantity of lactic acid bacteria material, 0.01 volume part or more and 2.0 volume part or less are preferable with respect to 100 volume part of solid feed, 0.05 volume part or more and 1.0 volume part or less are more preferable, 0.1 More preferred is a volume part or more and 0.5 part by volume or less. When the blending amount of the lactic acid bacteria material is less than 0.01 parts by volume with respect to 100 parts by volume of the feed other than the lactic acid bacteria material, the amount of the lactic acid bacteria in the livestock excrement may be insufficient, while the blending amount of the lactic acid bacteria material is 2 Even if it exceeds 0.0 parts by volume, there is a possibility that an increase in the amount of lactic acid bacteria accompanying an increase in the blending amount cannot be fully expected.

  The lactic acid bacteria are not necessarily solid and need not be mixed with the feed, but may be mixed with the feed in a liquid state. Moreover, you may provide the lactic acid bacteria with respect to livestock by mix | blending lactic acid bacteria with the drinking water of livestock. Furthermore, the supply of lactic acid bacteria to livestock is not limited to the case where it is formulated for food and drink, but can also be carried out by directly orally administering a solid or liquid lactic acid bacteria-containing material to livestock.

  The lactic acid bacterium is not particularly limited as long as it can survive in the body of livestock, and may be appropriately selected according to the intestinal environment of the livestock, the use of the organic material obtained, etc. Lactic acid bacteria that can survive at pH 5 or lower, particularly lactic acid bacteria that can survive under strong acidity at pH 3 are preferred. Examples of such lactic acid bacteria include Lactobacillus acidophilus, Lactobacillus delbrueckii, Lactobacillus plantarum, Lactobacillus sanfranciscencis, Lactobacillus fermentum, Lactobacillus salivarius, Lactobacillus amylvorus, Lactobacillus casei, and Lactobacillus crispatus. Examples of Lactobacillus acidophilus include Lactobacillus acidophilus NP51, Lactobacillus acidophilus NPC747, and Lactobacillus acidophilus NP1, and among these, Lactobacillus acidophilus NP51 and Lactobacillus acidophilus NPC747 are preferable. As Lactobacillus delbrueckii, Lactobacillus delbrueckii ANTI MUFFA (Patent Deposit Center Accession No. FERM P-19705) is preferable. The exemplified lactic acid bacteria may be used alone or in combination of two or more, and may be used in combination with other bacteria such as lactic acid bacteria, yeasts and Escherichia coli other than those exemplified.

  As described above, by supplying a specific lactic acid bacterium to livestock, the specific lactic acid bacterium can be viable in the intestines and excreta of the livestock.

(Fermentation process)
A fermentation process is performed by depositing the used covering material collect | recovered from the barn in an anaerobic environment (primary deposition). A fermentation process can be performed, for example in the fermentation chamber 1 shown to FIG. 2 (A). The fermentation chamber 1 is defined by a non-breathable or hardly breathable floor 10 and side walls 11. The floor 10 and the side wall 11 are made of concrete, for example. The fermentation chamber 1 is further provided with a roof 12 at the upper part of the side wall 11 so that the used flooring 2 under fermentation is not wetted by rain or snow.

  When performing a fermentation process using such a fermentation chamber 1, it is set as the state which has arrange | positioned the used covering material 2 in the fermentation chamber 1, and has arrange | positioned the sheet | seat 13 above the used covering material 2. FIG. Thereby, it is set as the state where the used covering material 2 was deposited in the anaerobic state, and the fluctuation | variation of the temperature and humidity of the used covering material 2 during fermentation can be suppressed suitably. Such an anaerobic state is generally preferably maintained for 30 days or more and 60 days or less, although it depends on the temperature outside the fermentation chamber 1 and the heat insulation performance of the fermentation chamber 1. In this case, it is preferable that the used floor covering 2 is turned over every 5 to 10 days so that the fermentation progresses uniformly throughout the used floor covering 2. Note that the sheet 13 is not necessarily disposed above the used flooring 2 and may be disposed so as to directly cover the used flooring 2.

  Here, since the used bedding material 2 is attached to the excrement of livestock to which a specific lactic acid bacterium has been donated by a feed containing lactic acid bacteria, useful microorganisms such as a specific lactic acid bacterium are viable in the used bedding material 2. doing. Therefore, the used floor covering 2 can be subjected to anaerobic fermentation by useful microorganisms such as specific lactic acid bacteria by setting the used floor covering 2 in an anaerobic state. By such anaerobic fermentation, useful microorganisms in the used covering material 2 grow, while the internal temperature of the used covering material 2 rises to about 60 ° C., thereby suppressing the growth of harmful microorganisms such as pathogenic bacteria. Can do.

(Disassembly process)
The decomposition step is performed by depositing used bed material after anaerobic fermentation (hereinafter also referred to as “primary fermentation bed material”) in an aerobic environment (secondary deposition). The decomposition process can be performed, for example, in the decomposition chamber 3 shown in FIG. The decomposition chamber 3 is defined by air-permeable members 30 and 31 at the side and bottom of the portion where the primary fermentation bed 4 is deposited in order to achieve an aerobic environment. The breathable members 30 and 31 are disposed at a position away from the side wall 32 and the bottom wall 33 of the decomposition chamber 3. Thereby, the primary fermentation bed material 4 can be efficiently contacted with air | atmosphere.

  As the air-permeable members 30 and 31, members having a large number of through holes such as expanded metal, punching metal, and wire mesh can be used. When the accumulation area | region of a primary fermentation bed material is prescribed | regulated by such a breathable member 30 and 31, the volume used as the aerobic environment in a primary fermentation bed material can be ensured efficiently. Moreover, as a shape of the through-hole of the air permeable members 30 and 31, for example, a rectangle such as a rectangle, a square, a rhombus, or a similar shape thereof, a circular shape such as a true circle diameter, an oval diameter, an ellipse diameter, or a similar shape thereof Etc. For example, in the case of such a rectangular through hole, the length of the diagonal line is preferably 0.5 cm to 10 cm, and more preferably 1 cm to 5 cm. When the lengths of the diagonal lines are different, the length of the long diagonal line is preferably 3 cm to 5 cm, and the length of the short diagonal line is preferably 1 cm to 3 cm. Furthermore, in the case of a through hole having a perfect circle or a substantially perfect circle diameter, the diameter is preferably 0.5 cm to 10 cm, and more preferably 1 cm to 5 cm. Further, when the through hole is a non-circular circle, the length of the long axis is preferably 3 cm to 5 cm, and the length of the short axis is preferably 1 cm to 3 cm. When the size of the through-holes of the air-permeable members 30 and 31 is in the above-described range, the primary fermentation bed 4 can be sufficiently brought into contact with the atmosphere while suppressing the spillage of the primary fermentation bed 4.

  The decomposition chamber 3 further includes a plurality of spray nozzles 34. These spray nozzles 34 spray water on the primary fermentation litter 4 in a mist form.

  When the primary fermentation litter 4 is deposited in such a decomposition chamber 3, the surface of the primary fermentation litter 4 comes into contact with the atmosphere, and the wastes and the like in the primary fermentation litter are decomposed in an aerobic state. Specifically, the surface layer 40 of the primary fermented litter 4 is in an aerobic state, and the excrement and the like are aerobically decomposed, and the inner layer 41 is in a slightly aerobic state in which the oxygen pressure is lower than that of the surface layer 40 and Aerobic decomposition. Here, the aerobic state or the aerobic environment means a state where the oxygen pressure exceeds 0%, for example, a state where the oxygen pressure is 0.5% or more.

  Such an aerobic state is generally preferably maintained for 30 days or more and 60 days or less, although it depends on the temperature outside the decomposition chamber 3 and the heat insulation performance of the decomposition chamber 3. During the decomposition step, water is sprayed in a mist form from the spray nozzle 34 onto the primary fermentation litter 4 in order to prevent drying of the primary fermentation litter 4. The mist spraying may be performed according to the dry state of the primary fermentation litter 4 and may be either continuous spraying or intermittent spraying. The average diameter of the mist (average diameter of the spray nozzle of the spray nozzle 34) is, for example, 5 μm to 15 μm, preferably 7 μm to 10 μm. By spraying the mist having such an average diameter, moisture can be evenly replenished to the surface of the primary fermentation litter 4 and drying of the primary fermentation litter 4 can be appropriately suppressed. Here, it is preferable that the mist sprayed from the spray nozzle 34 contains a mineral component.

  As mineral components in this case, for example, iron, copper, zinc, chromium, manganese, cobalt, nickel, sodium, magnesium, silicon, aluminum, phosphorus, potassium, calcium, titanium, vanadium, lithium, germanium, selenium, sulfur, rubidium , Molybdenum, barium, and tungsten. These mineral components are preferably contained in moisture in an ionized state.

  In this way, by spraying the primary fermented litter 4 with water containing a mineral component in a mist state, not only the drying of the primary fermented litter 4 during aerobic decomposition can be suppressed, but also obtained in the present embodiment. A mineral component can be contained in the organic material.

  In addition, during the decomposition step, it is preferable to turn over the primary fermentation litter 4 every 5 to 10 days so that the entire primary fermentation litter 4 is uniformly aerobically decomposed, and in particular, microaerobic decomposition proceeds.

  By performing such a decomposition process (secondary deposition), the temperature of the inner layer 41 of the primary fermentation bed 4 becomes 30 ° C. to 50 ° C. (about 40 ° C.), and the primary fermentation bed 4 (used bed sheet 2). The wastes etc. are decomposed almost completely into carbon dioxide. On the other hand, the primary fermentation bedding material 4 (used bedding material 2) is mainly composed of wood fiber and is difficult to be decomposed in many cases, and the apparent volume ratio is 40% to 70%, many. In the case of, 50% to 70% remain together with useful microorganisms in an almost original form.

  As described above, in the present embodiment, the used bedding material 2 of livestock to which a specific lactic acid bacterium has been supplied is decomposed with waste and the like through a fermentation process and a decomposition process, has a low odor, and is useful for a specific lactic acid bacterium or the like. It becomes an organic material containing a lot of microorganisms. Since this organic material contains a lot of useful microorganisms, it can be used in various applications as it is, such as livestock bedding, soil improvement materials (eg, fertilizers, soil improvement agents), water quality improvement agents, livestock excrement treatment agents, and these raw materials. It can also be used. Thus, in this embodiment, used bedding material, in particular, livestock excrement can be effectively used as an organic material for various purposes.

  In addition, in this embodiment, although the organic material was obtained through the fermentation process and the decomposition | disassembly process, the used covering material 2 of the livestock which provided the specific lactic acid bacteria was obtained, You may abbreviate | omit a fermentation process. Moreover, an organic material can also be obtained by separating the excrement from the used covering material and at least aerobically decomposing the excrement.

[Second Embodiment]
This embodiment is an organic material obtained by aerobically decomposing a bedding material used for raising livestock to which lactic acid bacteria have been provided. This organic material is preferably one that has been anaerobically fermented prior to aerobically decomposing the excreta. The organic material of the present invention is preferably obtained by microaerobic decomposition in a microaerobic environment in which microbes in a microaerobic group having an oxygen pressure of 10% or less are likely to propagate.

  The organic material of the present invention has less odor because the wastes are decomposed by useful microorganisms such as lactic acid bacteria, and the useful microorganisms such as specific lactic acid bacteria are alive. By adding to the object such as, it is possible to suppress the growth of microorganisms other than useful microorganisms in the object and reduce the odor of the object. As a result, the organic material of the present invention can be suitably used as a livestock covering material, a soil improving material, a water quality improving agent, a livestock excrement treating agent, and these raw materials.

(Livestock bedding)
Livestock bedding is used for raising livestock. The organic material of the present invention may be used as it is as a livestock bedding, or may be mixed with an unused bedding and used as a livestock bedding. As the unused laying material, various known materials generally used as a livestock laying material can be used.

  Such a bedding material for livestock contains a lot of useful microorganisms such as lactic acid bacteria, so it creates an environment in which harmful microorganisms are difficult to propagate, keeps pathogens away and maintains the health of the livestock, and sewage such as manure on the spot. It can be decomposed and the bad odor generated from the barn can be suppressed.

(Soil improvement material)
The soil improvement material refers to a material that is applied to the soil and causes changes in the physical properties, chemical or biological properties of the soil to be useful for agricultural production, and includes at least a fertilizer and a soil improvement agent.

  The organic material of the present invention may be used as it is as a solid fertilizer, or may be used as a solid fertilizer by mixing known additives for fertilizers and organic substances such as rotted soil. Moreover, you may use the organic material of this invention as a liquid fertilizer (liquid fertilizer) by performing a predetermined process.

  Here, examples of the predetermined process include a process of solid-liquid separation after mixing the organic material of the present invention with moisture. In this case, the liquid component obtained by solid-liquid separation can be used as liquid fertilizer as it is, or an additive can be added to the liquid component and used as liquid fertilizer. Although there is no restriction | limiting in particular in the kind of additive, The well-known various thing generally used as an additive of liquid fertilizer can be used. On the other hand, the solid component obtained by solid-liquid separation may be used as it is as a soil improver such as cultivated soil, or it may be mixed with known additives for soil improver and organic matter such as rotted soil. It may be used as an agent.

  Since such a soil improvement material contains a lot of useful microorganisms, it is possible to create an environment in which harmful microorganisms are difficult to propagate and to keep the health of vegetables and fruit trees away from pathogenic bacteria.

(Water quality improver)
Water quality improvers are used for water quality improvement in wells, ponds, swamps, and other water storage, as well as water quality improvements in water and sewage systems, water quality improvements in equipment that prevents oil from directly flowing into sewers (grease straps), etc. It is what is done. The organic material of the present invention may be used as it is as a solid water quality improver, or may be used as a water quality improver by mixing known additives for water quality improvers. Moreover, you may use the organic material of this invention as a liquid water quality improvement agent by performing the process similar to the case where liquid fertilizer is obtained.

  Such a water quality improving material contains a lot of useful microorganisms, so that it can create an environment in which harmful microorganisms hardly propagate, keep away pathogenic bacteria, suppress the generation of odor, and contribute to the improvement of water quality.

(Livestock excrement treatment agent)
The livestock excrement treating agent is used for reducing the odor of livestock excrement. The organic material of the present invention is used as it is or as a solid with an additive added or as a livestock excrement treating agent that has been liquefied by the above-described treatment. In this case, it is possible not only to effectively use used floor coverings, particularly livestock excrement, but also to manage livestock excrement in an environmentally friendly state with less odor.

  Such a livestock excrement treatment agent contains a lot of useful microorganisms, so that it is possible to create an environment in which harmful microorganisms are difficult to propagate, keep away pathogenic bacteria and suppress the generation of odor, and can effectively use livestock excrement as a resource. Become.

[Third Embodiment]
This embodiment is a method for producing both liquid material and solid material from livestock excrement. This manufacturing method collects used bedding material of livestock raised by donating lactic acid bacteria, obtains organic material from the used bedding material through a fermentation process and a decomposition process, and then performs a predetermined treatment on the organic material. Is what you do. Various operations such as the fermentation process before the predetermined treatment are performed in the same manner as the organic material manufacturing method of the first embodiment described with reference to FIGS. 1 and 2. In other words, the manufacturing method of this embodiment is to obtain a liquid material and a solid material using the organic material obtained in the first embodiment as a raw material.

  The predetermined treatment is a contact / separation treatment in which the organic material of the present invention is contacted with moisture and then separated into solid and liquid, and can be performed using the separation apparatus shown in FIGS. 3 (A) to 3 (C). . The separation device 5 includes a chamber 6, a lid 7 and a pressurizing mechanism 8.

  The chamber 6 has an internal space 60 having a uniform cross section and an upper opening 61. Since the chamber 6 has the upper opening 61, an organic material can be introduced into the internal space 60, and the filter 66 described later and internal cleaning can be easily performed. A supply portion 63 communicating with the internal space 60 is provided on the side wall 62 of the chamber 6, and a discharge portion 65 communicating with the internal space 60 is provided on the bottom wall 64 of the chamber 6. The supply unit 63 is a part that supplies moisture to the inside of the chamber 6. The discharge part 65 is a part for discharging the obtained liquid material from the chamber 6. Although not shown in the drawing, the discharge portion 65 can be selected between an open state in which moisture in the chamber 6 is discharged and a closed state in which the water is not discharged by a valve or the like.

  A filter 66 and a support mesh 67 are arranged inside the chamber 6.

  The filter 66 separates the solid component and the liquid component from the solid-liquid mixture in the chamber 6. The filter 66 is not particularly limited as long as it does not transmit a solid component as much as possible and sufficiently transmits a liquid component, and a foam material such as a nonwoven fabric, a woven fabric, paper, or a sponge can be used.

  The support mesh 67 fixes the filter 66 at a predetermined position in the chamber 6 and is fixed to the inner surface of the chamber 6. The support mesh 67 is not particularly limited as long as it has durability capable of supporting the filter 66 and the solid component and can transmit the liquid component.

  As shown in FIG. 3B, the lid 7 opens and closes the upper opening 61 of the chamber 6 and is fixed to the chamber 6. The lid 7 may be separable from the chamber 6. The lid 7 further has a role of supporting the pressure member 80 of the pressure mechanism 8 described later and guiding the movement of the pressure member 80.

  As shown in FIG. 3C, the pressurizing mechanism 8 pressurizes the solid-liquid mixture supplied to the chamber 6. The pressure mechanism 8 includes a pressure member 80 and an actuator 81. The pressurizing member 80 has a planar view area that substantially matches the cross-sectional area of the internal space 60 of the chamber 6, and can move up and down along the inner surface of the chamber 6. The actuator 81 moves the pressing member 80 close to and away from the lid 7. As the actuator 81, a power cylinder such as a hydraulic cylinder, a pneumatic cylinder, or a hydraulic cylinder can be used.

  Next, the contact / separation process using the separation apparatus 5 described with reference to FIGS. 3A to 3C will be described with reference to FIGS. 4A to 4C.

  First, as shown in FIG. 4 (A), the lid 7 is opened to open the upper opening 61 of the chamber 6, and the used covering material 90 is placed on the filter 66 so that the inside of the chamber 6 is placed. The used covering material 90 is thrown in.

  Next, as shown in FIG. 4B, moisture 91 is supplied into the chamber 6 through the supply unit 63 after the lid 7 is closed. The supply of the moisture 91 can be performed using a known liquid feed pump. The water 91 may be distilled water or tap water, but is preferably mineral water. Examples of mineral components in mineral water include iron, copper, zinc, chromium, manganese, cobalt, nickel, sodium, magnesium, silicon, aluminum, phosphorus, potassium, calcium, titanium, vanadium, lithium, germanium, selenium, sulfur, and rubidium. , Molybdenum, barium, and tungsten. These mineral components are preferably contained in moisture in an ionized state.

  The supply of the moisture 91 to the chamber 6 may be performed with the lid 7 opened. In this case, the moisture 91 may be supplied after the used covering material 90 is supplied as in the case described above. However, the moisture 91 may be supplied before the used covering material 90 is charged, and the supply portion 63 is omitted and the moisture 91 is supplied from the upper opening 61 of the chamber 6 in the same manner as the used covering material 90. Also good. Of course, the used covering material 90 and the moisture 91 may be mixed in advance, and this mixed solution may be supplied to the chamber 6.

  Subsequently, as shown in FIG. 4C, the actuator 81 of the pressurizing mechanism 8 is operated to move the pressurizing member 80 downward, whereby a mixture of the used covering material 90 and moisture 91 such as mineral water. Separate and collect liquid material from In addition, before performing such separation and recovery, it is preferable to diffuse useful microorganisms such as lactic acid bacteria in the liquid component by stirring or the like.

  As described above, by separating the used covering material 90 and the moisture 91 after mixing, a liquid material containing useful microorganisms such as lactic acid bacteria can be obtained, and the mineral component can be obtained by supplying the mineral component as moisture. Furthermore, the liquid material containing can be obtained. This liquid material can be suitably used as a soil improving material such as liquid fertilizer, a water quality improving agent such as a grease strap, a livestock excrement treating agent, and these raw materials.

  On the other hand, the solid component (residue) in the chamber 6 contains useful microorganisms although the content of useful microorganisms such as lactic acid bacteria is smaller than that of the liquid component (liquid material). Therefore, it can be used as a soil improvement material such as cultivated soil, and can also be used as a reclaimed flooring material or a raw material thereof. By using for such a use, the residue when obtaining a liquid material can be used effectively as a solid organic material.

[Fourth Embodiment]
This embodiment is a used bedding material recycling system in which an organic material obtained from used bedding material is used as a livestock bedding material or a bedding material material. In this recycling system, the production of the organic material from the used flooring material is performed in the same manner as in the first embodiment of the present invention. The obtained organic material can be used as a laying material as it is, but may be used as a laying material by adjusting the water content by drying or humidification. Further, it may be used as a laying material by mixing the obtained organic material and a new laying material, in place of the new laying material or in addition to the new laying material. You may use the solid component (solid organic material) obtained in 3rd Embodiment.

  As described above, the recycling system of the present embodiment eliminates the dumping of used flooring material by recycling the used flooring material, contributes to environmental conservation, and greatly increases the amount of expensive flooring material used. This can reduce the cost of livestock management. In addition, reclaimed flooring materials (organic materials) contain many useful microorganisms such as lactic acid bacteria, creating an environment where harmful microorganisms are difficult to propagate, keeping pathogenic bacteria away and maintaining the health of livestock, and excrement such as manure It can be decomposed on the spot to suppress the bad odor generated from the barn.

  In addition, the recycling system of this embodiment can be implemented in all livestock houses such as a pig house and a poultry house, including a cow house.

DESCRIPTION OF SYMBOLS 1 Fermentation chamber 13 Sheet | seat 2 Used covering material 3 Decomposition chamber 30,31 Breathable part 34 Spray nozzle 4 Primary fermentation covering material 40 Surface layer (of primary fermentation covering material) 41 Inner layer (of primary fermentation covering material) 5 Separation device 6 Chamber 63 Supply unit 65 Discharge unit 66 Filter 7 Lid 8 Pressurization mechanism 80 Pressurization member 90 Used covering material 91 Moisture

Claims (18)

A method for producing an organic material having a decomposition step for decomposing organic matter,
The method for producing an organic material is characterized in that the decomposing step is performed by aerobically decomposing the organic matter with lactic acid bacteria included in the excrement by donating lactic acid bacteria and raising livestock.   The donation of lactic acid bacteria to the livestock is performed by giving the livestock a feed containing 0.01 to 2.0 parts by volume of solid lactic acid bacteria material for 100 parts by volume of feed other than lactic acid bacteria. Item 10. A method for producing an organic material according to Item 1.   The method for producing an organic material according to claim 1 or 2, wherein the aerobic decomposition is performed under a microaerobic condition in which an oxygen pressure is 10% or less. It is carried out before the decomposition step, and further has a fermentation step for anaerobically fermenting used bedding material used for raising livestock,
The said decomposition | disassembly process is a manufacturing method of the organic material of any one of Claim 1 to 3 performed by carrying out the aerobic decomposition of the used covering material after the said fermentation process.   The method for producing an organic material according to claim 4, wherein the used covering material includes at least one of sawdust, sawdust, bark pulverized material, and wood pulverized material.   The method for producing an organic material according to claim 5, wherein the bark pulverized product or the wood pulverized product is a crushed thinned material.   The method for producing an organic material according to any one of claims 1 to 6, wherein in the decomposition step, mineral water is sprayed on the organic matter.   The method for producing an organic material according to any one of claims 1 to 7, wherein the organic material is a livestock covering material, a soil improving material, a water quality improving agent, a livestock excrement treating agent, or a raw material thereof.   The method for producing an organic material according to claim 8, wherein the soil improvement material is a fertilizer or a soil improvement agent.   The organic according to any one of claims 1 to 9, further comprising a contact / separation step of obtaining a liquid material and a solid material by solid-liquid separation after contacting the organic matter after the decomposition step with water. Material manufacturing method.   The method for producing an organic material according to claim 10, wherein the water contains a mineral component.   Organic materials obtained by aerobically decomposing organic matter with lactic acid bacteria included in excrement by donating lactic acid bacteria and raising livestock. Using used floor coverings used for raising livestock as the excrement and organic matter,
The organic material according to claim 12, obtained by anaerobically decomposing an organic substance in the used bedding material after anaerobic fermentation of the used bedding material.   The organic material according to claim 13, wherein the used covering material includes at least one of sawdust, sawdust, bark pulverized material, and wood pulverized material.   The organic material according to claim 14, wherein the bark pulverized product or wood pulverized product is a thinned timber pulverized product.   The organic material according to any one of claims 12 to 15, which is a livestock covering material, a soil improving material, a water quality improving agent, a livestock excrement treating agent, or a raw material thereof.   The organic material according to claim 16, wherein the soil improving material, the water quality improving agent, or a raw material thereof is a liquid organic material containing a mineral component. The recycling system of the used covering material which uses the organic material obtained by the manufacturing method of the organic material of any one of Claims 4-6 as a covering material for livestock, or a covering material raw material.