JP3385263B2 - Livestock barn recycling system - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for recycling waste bedding used in a livestock barn, and more particularly to a method for regenerating waste bedding by adding microorganisms to the waste bedding. The present invention relates to a livestock barn recycling system that can be reused as a flooring. [0002] For example, in the livestock industry including beef cattle management and dairy farming, wood fibers such as sawdust, planer, bark and the like are used as bedding materials for livestock in a barn. ing. This litter is contaminated by livestock excrement and the like when used for a certain period of time, and therefore needs to be replaced periodically. In this case, the used waste bedding will be discarded after being incinerated, etc., except for a part of it being used as fertilizer. Based on the enactment of the "Promotion Law", proper management and effective use are required. [0003] On the other hand, due to the slump in domestic forestry due to the increase in imported timber and the shrinkage of the pulp industry, sawdust, planer, bark, etc., which are used as laying materials, are reduced, resulting in a shortage of supplies and a rise in prices. Problems have arisen. SUMMARY OF THE INVENTION [0004] In view of the above-mentioned problems of the environment surrounding the conventional livestock litter, the present invention provides a waste litter by adding microorganisms to the litter and treating it. It is an object of the present invention to provide a livestock barn recycle system that can be reused as a recycled bedding. [0005] In order to achieve the above object, a recycling system for bedding stock for livestock sheds according to the present invention comprises adding microorganisms capable of decomposing organic substances to waste bedding used in livestock sheds, The bedding is fermented under anaerobic conditions, then
For microaerobic decomposition under aerobic decomposition under about 10% oxygen pressure
Therefore, by decomposing, the waste material adhering to the flooring material is decomposed, and the waste floor material in which the waste material is decomposed is dried and reused as a recycled flooring material. [0006] The recycle system for bedding material is
Microbes can be used to decompose filth adhering to the waste bedding used in the livestock barn, and the waste bedding can be dried to recycle the waste bedding as a recycled bedding. By repeating the above, it is possible to eliminate waste dumping material, thereby contributing to environmental preservation, to greatly reduce the amount of expensive flooring material used, and to reduce the cost of livestock management. In addition, the recycled bedding material contains a lot of useful microorganisms, so it creates an environment where harmful microorganisms do not easily grow, keeps livestock healthy by keeping pathogenic bacteria away, and decomposes manure and other filth on the spot. In addition, it is possible to suppress the odor generated from the barn. This
In the case of, when aeration (forced air supply) or stirring is performed,
Regeneration due to the scattering of useful microorganisms in the steam
Poor quality of litter, but aerobic under oxygen pressure less than about 10%
Decomposition by microaerobic decomposition
Aging while maintaining the density of useful microorganisms.
As a result, the recycled flooring material is not consumed and the recycling system
It is a material that can be regenerated repeatedly with the system. An embodiment of a livestock litter recycling system according to the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of a system for recycling livestock litter according to the present invention. This recycle system for bedding stock is a first step of adding a microorganism that decomposes organic matter to a waste bedding 2 discharged from a livestock barn, and a first step of depositing and fermenting the waste bedding 2 to which the microorganism is added. It consists of two steps, a third step of aerobically decomposing the waste of the fermented waste bedding 2, and a fourth step of drying the waste bedding 2 that has decomposed the waste to form the recycled bedding 3, A new litter 4 is added to the reclaimed litter 3 as needed, so that it can be used again in the barn 1. In the first step of adding microorganisms to the waste bedding 2, as shown in FIG. 1B, a liquid containing aerobic microorganisms and anaerobic microorganisms is sprayed on the entire waste bedding 2 by the sprayer 5. Spray. In this case, the waste bedding material 2 may be sprayed while being stirred, but this stirring and mixing is not always necessary. Aerobic microorganisms and anaerobic microorganisms cannot be clearly classified because there are microorganisms that act both aerobically and anaerobically, but examples include filamentous fungi, yeast, lactic acid bacteria, actinomycetes, and photosynthetic bacteria. Next, in the second step of depositing and fermenting the waste litter 2 to which the microorganisms have been added, as shown in FIG. 1 (c), the waste litter 2 is deposited without being wet by rain or the like. ,
Leave for about 20 days in summer and about 30 days in winter. As a result, anaerobic fermentation is performed by anaerobic microorganisms under anaerobic conditions, and useful microorganisms grow. On the other hand, the internal temperature of the waste litter 2 rises to about 60 ° C., thereby preventing the growth of harmful microorganisms such as pathogenic bacteria. Can be suppressed. In the third step of aerobically decomposing the waste material of the waste bedding material 2, the fermented waste bedding material 2 is aerobicly decomposed by aerobic microorganisms, preferably by microaerobic decomposition. The filth of the bedding material 2 is decomposed under aerobic conditions. Here, the microaerobic decomposition refers to aerobic decomposition performed under an oxygen pressure of about 10% or less, which is an environment in which microorganisms in a microaerobic group easily grow. This aerobic decomposition is specifically described in FIG.
As shown in the figure, a floor 6 having air permeability, for example, made of expanded metal or the like is installed at an interval from the ground, and the floor covering 6 is disposed on the floor 6 in a state where it is not wet by rain or the like.
This is done by allowing the sample to stand and exposing it naturally to the atmosphere. In this case, when aeration (forced air supply) or agitation is performed, the quality of the reclaimed flooring material 3 deteriorates due to scattering of useful microorganisms in the steam and the like. However, by performing microaerobic decomposition, the density of the useful microorganisms is reduced. Is maintained, and the recycled flooring material 3 is not consumed and becomes a material that can be repeatedly recycled by this recycling system. In this aerobic decomposition, if it is allowed to stand for about 20 days in summer and about 30 days in winter, the internal temperature of the waste bedding 2 becomes about 40 ° C., and the waste of the waste bedding 2 is almost completely converted into carbon dioxide gas or the like. Decomposed by fermentation. On the other hand, the litter of the waste litter 2 itself is hardly decomposed because it is made of wood fiber, and is partially decomposed.
0-70%, often 50-70%, will remain with the useful microorganism in a substantially intact state. Further, in the fourth step of drying the waste litter 2 which has decomposed filth, as shown in FIG. 1 (e), the waste litter 2 is naturally dried without being wet by rain or the like. Drying of the waste litter 2 is left for about 20 days in summer and about 30 days in winter. As a result, the waste litter 2 remaining with the useful microorganisms in the third step is dried to a degree suitable for the litter of the livestock barn, and regenerated litter 3 as shown in FIG.
It becomes. The reclaimed litter 3 is composed of the litter itself of the waste litter 2 remaining in a substantially original state, the residue of filth decomposed by microorganisms, and the residue of the litter itself partially decomposed by microorganisms. The bedding material that is composed and retains its original shape itself has an apparent volume ratio of 40 to 70%, often 50%.
Accounts for ~ 70%. The recycled bed material 3 can be used as a bed material as it is, but its volume is reduced to about 50 to 80%, and in many cases about 60 to 70%, in terms of apparent volume ratio due to decomposition of microorganisms. Therefore, if necessary, a new litter 4 can be added by an amount corresponding to the reduced volume, and as shown in FIGS. As described above, the recycle system for livestock bedding according to the present embodiment decomposes the dirt adhering to the waste bedding 2 with the microorganisms and dries the waste bedding 2, whereby the waste bedding 2 is dried. It is possible to reuse the recycled flooring material 3, and by repeating the resource circulation by this recycling system, it is possible to eliminate the disposal of the waste flooring material 2 and to contribute to environmental preservation and reduce the amount of expensive flooring material used. It can greatly reduce the cost of livestock management. Also,
Recycled litter 3 contains a lot of useful microorganisms, so it creates an environment where harmful microorganisms are unlikely to proliferate, keeps livestock healthy by keeping pathogenic bacteria away, and decomposes dirt such as manure on the spot, The generated odor can be suppressed. In this case, perform aeration (forced air supply) or stirring.
In this case, useful microorganisms may be scattered in the steam.
The quality of the reclaimed flooring material deteriorates, but the oxygen pressure is about 10% or less.
Decomposition by microaerolysis under aerobic decomposition under
Ripening while maintaining the density of useful microorganisms
This makes it possible to recycle recycled materials without wasting them.
It is a material that can be regenerated repeatedly by the system. Although the embodiment has been described above, the recycle system of the litter for livestock barns according to the present invention can be implemented in all barns such as barns, pig houses and poultry houses. According to the recycle system for livestock bedding according to the present invention, the adhered waste is decomposed by microorganisms and the waste bedding is dried to recycle the waste bedding as a reclaimed bedding. It can be used, and by repeating resource recycling by this recycling system, it is possible to eliminate waste litter and contribute to environmental preservation. Management costs can be reduced. In addition, the recycled bedding material contains a lot of useful microorganisms, so it creates an environment where harmful microorganisms are difficult to propagate, keeps livestock healthy by keeping pathogenic bacteria away, and decomposes manure and other filth on the spot. In addition, it is possible to suppress the odor generated from the barn. In this case,
If you use forced aeration or agitation, useful microorganisms are turned into steam.
The quality of the recycled mattress deteriorates due to mixing and scattering.
Is a microaerobic substance that undergoes aerobic decomposition under an oxygen pressure of about 10% or less.
By decomposing by solution, the density of useful microorganisms
Aging while maintaining the
The material is not consumed and can be regenerated repeatedly with the recycling system
Material.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram showing one embodiment of a livestock litter recycling system of the present invention. [Description of Signs] 1 Livestock barn 2 Waste bedding 3 Recycled bedding 30 Recycled bedding 4 New bedding 5 Sprayer 6 Floor

Claims (1)

(57) was added microorganisms decomposing organic matter in waste litter used in [Claims 1. A barn, fermenting the waste litter under anaerobic conditions, then, about 10% Aerobic decomposition under the following oxygen pressure
By decomposing by microaerobic decomposition to decompose dirt adhering to the litter, drying the waste litter decomposed by the litter and reusing it as a recycled litter. Recycling system for livestock litter.