JP2000072579A - Apparatus for treating excreta of livestock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for treating excreta of livestock without affecting the outside of facilities by treating the excreta of the livestock animals or a malodor generating from the excreta in the facilities. SOLUTION: This apparatus for treating excreta of livestock is equipped with a solid-liquid separating device 4 for obtaining liquid excreta 6 from discharged excreta 3 of the livestock animals, a cylindrical vertical type treating tank 11 having a hopper-shaped lower part, a secondary fermenter 15 for providing a liquid fertilizer 17, a hollow cylindrical type deodorizing and heat insulating tank 19 in which a deodorizing material layer 20 comprising an organic material having the heat insulating effects is formed in the interior, a first duct 22 for sucking and feeding a malodor 23 filled in a barn 1 to the hollow cylindrical type deodorizing and heat insulating tank 19 and a second duct 24 for discharging air in the hollow cylindrical type deodorizing and heat insulating tank 19 to the atmosphere. The liquid fertilizer 17 is sprinkled over the barn 1 and the deodorizing material layer 20, deodorized, sterilized and then sucked from the second duct 24 to thereby pass the malodor 23 taken into the hollow cylindrical type deodorizing and heat insulating tank 19 through the deodorizing material layer 20 and deodorize the malodor 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a livestock animal which uses a liquid fertilizer obtained by aerating liquid manure of a livestock animal with a photosynthetic bacterium and then aerating the liquid manure for deodorization and sterilization in a livestock barn. The present invention relates to an excrement disposal device.

[0002]

2. Description of the Related Art As is well known, in recent years, houses have become closer to suburban dairy facilities due to urbanization in remote areas, and dairy farmers and local residents have gradually been mixed.

[0003]

However, dairy facilities emit bad odors from the excrement of livestock animals, causing odor pollution to local residents, and dairy farmers to relocate dairy facilities or leave farming for livestock management. It casts a deep shadow. Therefore, consideration and efforts for environmental preservation are required in order to continue livestock management as a member of the local community, and dairy facilities that do not emit bad odors are eagerly needed.

Therefore, the present invention provides a livestock animal excrement disposal apparatus that treats excrement of livestock animals and offensive odors generated from the excretions in a facility and does not affect outside the facility. As a technical challenge, as a result of repeated research and experiments to realize this, photosynthetic bacteria and aerobic microorganisms use dissolved oxygen in a treatment tank where liquid manure of livestock animals is aerated and fermented by photosynthetic bacteria. As the organic matter in the liquid manure grows as a nutrient source, the organic matter is rapidly oxidized, and the liquid temperature rises to 60 ° C. or higher to promote rapid fermentation. As a result, the liquid manure is subjected to the fermentation treatment. If this fermentation treatment liquid is further aerated until it becomes a black-brown, viscous liquid with no foul odor, it becomes an easy-to-handle ripe liquid fertilizer with almost no scum. Since the mature liquid fertilizer has biological properties in addition to these physical properties, it can be used for deodorizing and sterilizing the animal barn for washing the floor of the barn and spraying. In addition, the present inventors have obtained remarkable knowledge that deodorization rich in microbial activity can be achieved, and that a deodorizing treatment with a stable and high odor removal efficiency can be realized.

[0005]

The technical problem can be solved by the present invention as described below.

That is, the livestock excrement disposal apparatus according to the present invention comprises a solid-liquid separation device 4 for separating solids 5 from livestock excrement 3 conveyed from the livestock barn 1 to obtain liquid manure 6. The liquid manure 6 connected to the solid-liquid separation device 4 via the first transfer pipe 13 and sent through the first transfer pipe 13 is aerated, and fermented by photosynthetic bacteria to obtain a fermentation treatment liquid. A cylindrical vertical processing tank having a hopper-shaped lower part 26 for obtaining 12
11, the fermentation treatment liquid 12 connected to the cylindrical vertical treatment tank 11 via the second transfer pipe 16 and sent through the second transfer pipe 16 to further aerate the liquid fertilizer 17. Secondary fermentation tank to get
A third transfer pipe 18, which is piped from the secondary fermentation tank 15 to the livestock house 1 and sends out the liquid fertilizer 17 to the livestock house 1; A hollow cylindrical deodorizing and heat retaining tank 19 in which a deodorizing material layer 20 made of an organic material having a heat retaining effect is formed therein, and the hollow cylindrical deodorizing and heat retaining tank 19 and the secondary fermentation tank 15 are formed. A fourth transfer pipe 21 connected to supply the liquid fertilizer 17 to the deodorizing material layer 20; and a hollow cylindrical deodorizing / A first duct 22 that sucks and sucks the heat into the heat retaining tank 19, and a second duct 24 that is connected to the hollow cylindrical deodorizing and heat retaining tank 19 and sucks air in the hollow cylindrical deodorizing and heat retaining tank 19 and discharges the air to the atmosphere. And the liquid fertilizer 17
The deodorizing material layer 20 is sprayed and deodorized and sterilized, and the inside of the barn 1 is depressurized through the hollow cylindrical deodorizing and heat retaining tank 19 by suctioning from the second duct 24, and the first duct 22 is decompressed. The offensive odor 23 taken into the hollow cylindrical deodorizing / insulation tank 19 through the deodorizing material layer 20 is deodorized.

Further, according to the present invention, there is provided the excrement disposal device for livestock animals, wherein the liquid fertilizer 17 is added with 20 to 30 g of photosynthetic bacteria to 1 m ³ of liquid manure 6 and aerated for 50 to 75 hours. Was further aerated for 50 to 75 hours to obtain a ripe liquid fertilizer having a black-brown, low-viscosity liquid free of offensive odor.

Further, according to the present invention, in any of the above livestock animal excrement disposal apparatuses, the organic material comprises sawdust, rice hull, wheat husk, bean husk, peanut hull, shredded rice straw and shredded wheat straw. At least one is chosen.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram for explaining a livestock animal excrement disposal apparatus according to the present invention. FIG. 2 is an explanatory view schematically showing a livestock house, a solid-liquid separation device, and a separated liquid storage tank shown in FIG. FIG. 3 shows a cylindrical vertical processing tank shown in FIG.
FIG. 4 is a plan view of the hollow cylindrical deodorizing / insulating tank shown in FIG. 3, except for piping to the hollow cylindrical deodorizing / insulating tank. Are omitted. FIG. 5 is a vertical sectional side view showing the defoaming device of the cylindrical vertical processing tank shown in FIG. 3, and FIG. 6 is a sectional view taken along line AA 'of the defoaming device shown in FIG.

In these figures, reference numeral 1 denotes a livestock barn built in a dairy farm, 2 denotes litter excreted in the barn 1 and litter such as straw and sawdust to which the excreted urine adheres (hereinafter collectively referred to as “excretion”). The excrement 3 collected and carried out by the bank cleaner 4 and the excreted manure 3 carried by the
And a solid-liquid separator for separating the solid matter 5 from the excreted manure 3 to obtain liquid manure 6, and a belt 7 for transferring the solid matter 5 discharged from the solid-liquid separator 4 to the compost house 8. Conveyor, 9 is a delivery pipe for taking out liquid manure 6 separated by solid-liquid separation device 4, 10 is a separated liquid storage tank for temporarily storing liquid manure 6 sent through delivery pipe 9, and 11 is liquid manure. A cylindrical vertical processing tank (hereinafter simply referred to as “processing tank”) for aerating 6 and fermenting with photosynthetic bacteria to obtain a fermentation treatment liquid 12, and 13 is provided with the delivery pipe 9 and the separated liquid storage tank 10. An inflow pipe (first transfer pipe) for connecting the solid-liquid separation device 4 to the processing tank 11 through the intermediation of the liquid manure 6 in the separated liquid storage tank 10 installed in the separated liquid storage tank 10 A transfer pump for feeding the processing tank 11 through the pipe 13 is connected to the processing tank 11 through an outflow pipe (second transfer pipe) 16. The fermentation treatment liquid 12 sent through the outlet pipe 16 is further aerated to obtain a black-brown liquid 17 (hereinafter simply referred to as “ripe liquid fertilizer”) 17 having a low viscosity without odor. , 18 is the secondary fermenter 15
And a supply pipe (third transfer pipe) 19, which pipes the mature liquid fertilizer 17 to the stable 1 and surrounds the periphery of the treatment tank 11, and is an organic material having a heat retaining effect therein. A hollow cylindrical deodorizing / insulating tank (hereinafter, simply referred to as a “deodorizing tank”) having a deodorizing material layer 20 (see FIG. 3) made of materials, and 21 connects the deodorizing tank 19 and the secondary fermentation tank 15 A supply pipe (fourth transfer pipe) for supplying the mature liquid fertilizer 17 to the deodorizing material layer 20 of the deodorizing tank 19, and a pipe 22 is connected from the livestock barn 1 to the deodorizing tank 19 to remove the odor 23 filled in the livestock house 1 from the deodorizing tank 19. A first suction duct (first duct) for sucking air into the air, and a second suction duct (second duct) for connecting the deodorizing tank 19 and the suction fan 25 to suction air in the deodorizing tank 19 and discharging the air to the atmosphere ).

The lower portion 26 of the processing tank 11 is formed in a hopper shape.
And an aeration pump 29 provided with an L-shaped upward injector 27 extending to the center and a liquid manure suction port 28 extending to near the bottom 26a of the processing tank 11. 29 has an intake pipe 30 that takes in outside air
Is connected, and the suction port 30a of the suction pipe 30 is connected to the upper portion 31 of the processing tank 11.
It is provided so as to protrude from. An aeration air pipe 33 having the other end connected to an aeration blower 32 installed near the processing tank 11 is connected to the injector 27 of the aeration pump 29.

A chimney-shaped air-lift tube 34 surrounding the injection port 27a of the injector 27 at a lower end portion 34a is provided vertically at a central portion in the processing tank 11, and an upper end portion of the air-lift tube 34 is provided. 34
The b is positioned at a position protruding from the liquid surface of the liquid manure 6 filled in the processing tank 11, and a cap-like cover 35 for generating bubbles with a gap is attached to the upper end 34b. The center of the upper portion 31 of the processing tank 11 is open, and a cylindrical center well (bubble guide tube) 36 for guiding bubbles upward is provided in the opening 31a.
And extends to a position below the liquid level. Further, the upper end opening 36a of the center well 36 is formed in a truncated conical shape, and a defoaming device 39 that smashes bubbles by a blow of a propeller 37 to form a slurry-like processed material 38 is provided in the opening 36a. Are linked.

In the upper part 31 of the treatment tank 11, an inlet 40 for introducing photosynthetic bacteria into the treatment tank 11 is provided, and the inflow pipe 13 for feeding the liquid manure 6 into the treatment tank 11 is connected to the treatment tank 11. It is connected by penetrating into 11.

In the vicinity of the lower portion 26 of the processing tank 11, the other end is an overflow pipe 41 connected to the separated liquid storage tank 10 for temporarily storing the liquid manure 6 and the supernatant which is the fermentation processing liquid 12 generated in the processing tank 11. The outflow pipes 16 for taking out the liquid are connected to each other through the processing tank 11, and extend upward in the processing tank 11,
In the overflow pipe 41, the front flow port 41a is positioned at a height that does not reach the upper end 34b of the air lift pipe 34, and in the outflow pipe 16, the front outlet port 16a is positioned at a height at which the flow port 41a is positioned. Is positioned at a height of 2/3. Further, an outlet 42 for taking out sediment such as sand and gravel accumulated in the processing tank 11 is provided at the bottom 26a of the processing tank 11.

As shown in FIGS. 5 and 6, the defoaming device 39 includes a defoaming device 43 having a propeller 37, a circular inner wall 44 provided on the upper end opening 36a side of the center well 36, and a defoaming device 43.
The propeller 37 is formed by a circular outer wall 45 provided on the side.
And a ring-shaped corridor 46 surrounding the circular inner wall.
Reference numeral 44 denotes the outer periphery of the propeller 37, and the circular outer wall 45 extends around the circular inner wall 44 in a far winding manner. And the ring corridor
A cleaning liquid inflow port 47 is provided on one side of the ring-shaped corridor 46 to wash out the slurry-like processed material 38 accumulated in the ring-shaped corridor 46, and a discharge groove 48 is formed on the other side. The defoaming device 39 is attached to the upper end opening 36a of the center well 36 while being inclined toward the discharge groove 48 side.

Reference numeral 49 denotes a discharge port of the discharge groove 48, and 50 denotes a discharge port.
A drain chute pipe (see FIG. 3) connected to 49 for sending out the slurry-like processed material 38, and 51 is a cleaning port for cleaning the inside of the center well 36.

In the deodorizing tank 19, inside the deodorizing tank 19,
Sawdust, rice husk, wheat husk, pea husk, peanut hull, deodorizing material layer 20 having a heat retaining effect composed of at least one organic material selected from shredded rice straw and shredded wheat straw, and a bed layer 52 composed of gravel, etc. It is formed, the shape of the deodorizing tank 19 is formed in the shape of a cross section of a cylindrical hollow cylinder type, on the upper surface of the deodorizing tank 19, an input port 53 for charging the organic material into the deodorizing tank 19 and A supply port 54 (see FIG. 4) for supplying the fully-ripened liquid fertilizer 17 to the deodorizing material layer 20 is provided, and one end of the supply port 54 is connected to a supply pump 55 provided in the secondary fermentation tank 15. The supply pipe 21 is connected. The supply port 54 is connected to a ring pipe 56 (see FIG. 4) that goes around the upper part in the deodorization tank 19, and the spray port 57 (FIG.
Open). Also, at the upper end of the deodorization tank 19,
An outlet 58 (see FIG. 4) for sucking and discharging the air in the deodorizing tank 19 is provided, and the other end of the outlet 58 is connected to the suction fan 25 installed near the processing tank 11. Two suction ducts 24 are connected.

At the lower end of the deodorizing tank 19, an intake port 59 for taking in the odor 23 generated in the barn 1 is provided, and an outlet port 60 for taking out the organic material in the deodorizing tank 19 extends around the lower end section. The first suction duct 22 connected to the stable 1 is connected to the intake port 59. A discharge pipe 61 for returning the mature liquid fertilizer 17 collected at the bottom of the deodorization tank 19 to the secondary fermentation tank 15 is connected to the lower surface of the deodorization tank 19.

In the secondary fermentation tank 15, the fermentation treatment liquid 12 and the slurry-like processed material 38 flowing into the secondary fermentation tank 15 are passed through the mesh at positions where the outlets of the drain chute 50, the outflow pipe 16 and the discharge pipe 61 face. A screen tank 62 flowing in is provided,
In the secondary fermentation tank 15, an air pipe 64 having the other end connected to an aeration blower 63 installed outside the secondary fermentation tank 15, and an outflow pipe 65 for extracting the mature liquid fertilizer 17 generated in the secondary fermentation tank 15 In the vicinity of the tip of the air pipe 64, an ejection nozzle 66 for ejecting bubbles upward is attached. In addition, 67 is a duct having one end connected to the secondary fermentation tank 15, and the other end is connected to the first suction duct 22. In addition, the outflow pipe 65 is connected to an existing underground pit (not shown) for storing the mature liquid fertilizer 17, and the mature liquid fertilizer 17 in the existing underground pit is deodorized to a stinking dairy facility other than the livestock barn as necessary. And fertilized on the field. Further, the supply pump 55 is installed in the secondary fermentation tank 15,
The supply pipe 55 is connected to the supply pipe 21,
Is connected to the supply pipe 18.

Next, the flow of the excrement 3 and the odor 23 will be described.

Excrement 3 excreted from livestock animals in the barn 1 is collected by the bank cleaner 2, conveyed to the solid-liquid separator 4, and enters the hopper 4 a of the solid-liquid separator 4. In the solid-liquid separation device 4, the excreted manure 3 is separated into solid matter 5 and liquid manure 6, and the solid matter 5 is transferred to a composting room 8 by a belt conveyor 7.

The liquid manure 6 passes through the delivery pipe 9 and accumulates in the separated liquid storage tank 10. The liquid manure 6 in the separated liquid storage tank 10 is sent out by the transfer pump 14 and poured into the processing tank 11 through the inflow pipe 13. When the liquid manure 6 is poured over the flow port 41a of the overflow pipe 41, the overflowing liquid manure 6 passes through the overflow pipe 41 from the flow port 41a and the separated liquid storage tank.
Sent to 10. At this time, the outflow pipe 16 is closed. After the liquid manure 6 is filled up to the flow port 41a, the inflow tube 13 is closed, and the frozen photosynthetic bacterial body is introduced from the introduction port 40.

Subsequently, the aeration pump 29 is driven and the processing tank
The liquid manure 6 in 11 is sucked up from the suction port 28, mixed with the outside air taken in from the suction port 30 a in summer, and injected into the air lift pipe 34 from the injector 27. In winter, the intake port 30a is closed, and compressed hot air is supplied from the aeration blower 32 installed near the processing tank 11 to the air pipe 33.
The liquid manure 6 is injected into the air lift pipe 34 while being heated while being mixed with the hot air. The liquid manure 6 stirred together with air by the aeration of the aeration pump 29 rises in the air lift pipe 34 in a bubble-mixed state while being aerobically fermented, and is blown up from the upper end 34b of the air lift pipe 34 to form bubbles for generating bubbles. The foam collides with the cover 35 and foams further.

The foam generated by colliding with the cover 35 is sucked by the rotation of the propeller 37 of the defoamer 43, accelerated by the narrow upper end opening 36a formed in a truncated cone, and defoamed by the defoaming device 39.
When it is sent into the corridor 46, it is crushed by the propeller 37, collides with the outer wall 45 and the inner wall 44, and is slammed into a slurry-like processed material 38, which accumulates in the corridor 46. Corridor 46
The slurry-like processed material 38 accumulated in the sloping corridor along with the washing liquid (for example, ripe liquid fertilizer 17) sent from the inflow port 47
It flows out through 46 into a drain 48 and down into a drain chute 50.

On the other hand, most of the liquid manure 6 which has risen in the air-lift tube 34 in a bubble-mixed state while undergoing aerobic fermentation is formed by the flow of the liquid manure 6 which descends in the center well 36 and is sucked into the suction port 28. It rides on the liquid flow, descends to the lower part 26 of the processing tank 11, is sucked up again from the suction port 28, and is injected into the air lift pipe 34.

After repetition for a desired time (for example, 75 hours / 9 m ^{3 of} liquid manure), the outlet pipe 16 is opened and the flow port 41 is opened.
The fermentation treatment liquid 12, which is the supernatant liquid at the water level from the water level a to the outlet 16a, enters the screen tank 62 of the secondary fermentation tank 15 through the outflow pipe 16, and removes the hair contained in the fermentation treatment liquid 12, etc. Are filtered and flow down to the secondary fermenter 15. At this time, the outflow pipe 65 of the secondary fermentation tank 15 is closed.

The treatment tank 11 at the water level at the outlet 16a
Then, the inflow pipe 13 is opened, the liquid manure 6 is replenished to the position of the flow port 41a, and the fermentation process is repeated.

Slurry-like processed material accumulated in the secondary fermentation tank 15
The aerobic fermentation is further performed on the 38 and the fermentation treatment liquid 12 by aeration and agitation by compressed hot air injected from the injection nozzle 66 through the air pipe 64 from the aeration blower 63.

In the secondary fermentation tank 15, if a black-brown liquid with no odor and reduced viscosity is obtained by aeration treatment for a desired time (for example, 75 hours / 9 m ^{3 of} fermentation treatment liquid), the supply pump 55 is supplied as the mature liquid fertilizer 17. Is supplied to the supply port 54 of the deodorization tank 19 through the supply pipe 21. In addition, some ripe liquid fertilizers 17
It is sprayed through the pen 18 to the inside of the barn 1, the bank cleaner 2 and the vicinity of each manure processing facility, and is used for suppressing odor generation and preventing virus diseases. It is also used as a cleaning liquid for the slurry-like processed material 38.

The supply port 55 of the deodorization tank 19 is supplied by the supply pump 55.
Is fed to the deodorizing material layer 20 from the spray port 57 of the ring tube 56.

The required amount of the mature liquid fertilizer 17 (for example, organic material 37)
After spraying (900 liters per 0 g), if the suction fan 25 is driven and sucked, the inside of the deodorization tank 19 and the livestock house 1 will be in a decompressed state, and the first suction duct 22 piped to the livestock house 1 will cause odor.
23 is pumped into the deodorizing tank 19. The odor 23 pumped into the deodorization tank 19 comes into contact with an organic material containing photosynthetic bacteria, which prefers and uses odorous substances, in the process of passing through the deodorization material layer 20, and is subjected to biological deodorization to become odorless. The air is discharged from the outlet 58 of the deodorization tank 19 to the second suction duct 24 and is released to the atmosphere.

After the first application of the mature liquid fertilizer 17, intermittent application (for example, 15 liters per hour) is performed.
Deodorizes.

In the present invention, the processing tank 11 is formed in a cylindrical vertical shape having a hopper-like lower portion 26, and an air lift pipe 34 for raising aeration air and an air lift pipe 34 And a center well 36 extending below the liquid level is provided, so that bubbles can be generated in the center well 36, so that the bubbles do not spread over the entire liquid level of the processing tank 11 and are efficiently erased. A suction port 28 that can foam and sucks the liquid manure 6 is positioned in the hopper-shaped lower part 26, and a liquid flow is generated upward in the center of the processing tank 11, and the liquid manure 6 is sucked into the suction port 28. Due to the downward liquid flow, the liquid manure 6 in the treatment tank 11 collects in the hopper-like lower part 26 without stagnation, and can perform a uniform fermentation treatment, and the fermentation treatment obtained in the treatment tank 11 Liquid 12 is further added to secondary fermenter 15 A matured liquid fertilizer 17 (black-brown liquid with no bad smell and low viscosity and almost no scum with low viscosity) that can be used for deodorization and sterilization by aeration treatment is used. The malodor 23 generated from the excrement 3 can be treated in the facility.

Further, as an incidental effect, in the defoaming device 39, the generated foam is crushed by the propeller 37 and also crushed by colliding with the inner wall 44 and the outer wall 45 of the corridor 46. It becomes a processed material 38, and furthermore, since the defoaming device 39 is provided at the upper end opening 36a of the center well 36 by being inclined toward the discharge groove 48 side,
The slurry-like processed material 38 is washed away with the cleaning liquid without being attached to the corridor 46 by the foam, and is discharged.

Further, in the treatment tank 11, the insoluble solids in the liquid manure 6 are collected and concentrated in the hopper-shaped lower part 26, so that they can be easily taken out from the outlet 42.

In the deodorizing tank 19, a hollow cylindrical deodorizing tank 19 is integrally formed so as to surround the cylindrical vertical processing tank 11 for aerating the liquid manure 6 and performing fermentation treatment with photosynthetic bacteria. Since it is provided, there is no need for a site area for separately installing a deodorizing tank, and high costs due to construction costs are eliminated.

In the deodorizing tank 19, a deodorizing material layer 20 made of an organic material having a heat-retaining effect such as sawdust, rice husk, wheat husk, pea husk, peanut hull, shredded rice straw or shredded wheat straw is provided. The fermentation treatment liquid 12 obtained in the treatment tank 11
The fermented solution 12 in the treatment tank 11 at 60 ° C. or higher was sprayed with the mature liquid fertilizer 17 which was further aerated.
Even in winter, the deodorizing material layer 20 of the deodorizing tank 19 keeps the temperature, and the temperature in the processing tank 11 is suppressed from being lowered, so that the biological activity of 10 to 40 ° C. is not affected. Also,
Since the temperature of the deodorizing material layer 20 is maintained in winter by the temperature in the processing tank 11, the deodorizing effect is not impaired. Furthermore, the organic material used for long-time deodorization contains an easy-to-handle ripe liquid fertilizer 17 with almost no scum, so that it can be used in the field as a compost fertilizer after aerobic fermentation, so that it does not become an industrial waste. is there.

The processing tank 11 and the deodorizing tank 19 may have a cylindrical shape with a polygonal cross section. In order to increase the efficiency of pumping odors, a bed layer 52 made of gravel was provided.
52 may be omitted. Further, the processing tank 11 and the deodorizing tank 19 may be made of stainless steel. Further, the first suction duct 22 is connected to the livestock barn 1, but may be connected to another manure processing facility such as the compost bar 8.

Organic materials include sawdust, rice husk, wheat husk, bean husk,
Peanut hulls, shredded rice straw, shredded wheat straw and the like may be used alone or in combination.

As the photosynthetic bacterium, commercially available frozen cells may be used. The input amount of the photosynthetic bacterium may be ⁵ to 50 g per 1 m ³ of liquid manure, and depending on environmental conditions, it is inactive at less than 5 g. Or, it tends to be unstable, and if the amount exceeds 50 g, the effect proportional to the increase is not obtained, which is not preferable in terms of cost. Most preferred is 20-30 g.

In the summertime at an average outside air temperature of 30 ° C., the fermented solution 12 which has been aerated for 2 days (50 hours) to 3 hours (75 hours) for about 50 hours and fermented is further added for 2 days (50 hours). If the aeration process is performed for about 3 hours (75 hours), which is close to 50 hours, and in winter when the average outside temperature is −10 ° C.,
Fermentation solution 12 fermented by aeration for about 75 hours for 3 days (75 hours) for 3 days (75 hours) for 2 days (50 hours) to 3 hours (75 hours) for about 75 hours If it is treated, it becomes an easy-to-handle ripe liquid fertilizer 17 that has almost no odor and has almost no scum of a black-brown liquid with reduced viscosity. The fully matured liquid fertilizer 17 is a deodorant liquid containing a well-balanced amount of water, nutrients, and active microorganisms necessary for living organisms.

The amount of the mature liquid fertilizer 17 applied to the deodorizing material layer 20 is initially 800 to 1,000 liters with respect to 370 kg of the organic material.
It is sufficient if it is time, and in summer, the spraying amount is close to the minimum value,
In winter, the spraying amount may be close to the maximum value.

The suction by the suction fan 25 is 1,100 to 1,300 m
If it is ³ / hour, it can be efficiently deodorized.

The ring tube 56 may be provided above the upper surface of the deodorization tank 19. In this case, the supply pipe 21 is connected to a ring pipe 56, and the supply ports 54 of the mature liquid fertilizer 17 are provided at equal intervals on the upper surface of the deodorization tank 19 and connected to the ring pipe 56, and the spray port is provided.
57 may be connected to the supply port 54 in the deodorization tank 19.

[0046]

[Example] Conducted in Betsukai-cho, Notsuke-gun, Hokkaido. The excrement of 5 tons / day of 100 multiparous cows was passed through a solid-liquid separator 4 (screw press: power 3.7 kw) to separate the solid 5 to obtain liquid manure 6. Liquid manure 6 the lower 26 of the hopper-shaped stainless steel cylindrical vertical treatment vessel 11 (internal volume: 9m ^3, the cylindrical portion of diameter: 2m, the cylindrical portion height: about 3.15M) in 9m ³ poured in, Freezing photosynthetic bacteria (10 ¹² viable cells /
g) was charged in an amount of 225 g.

Also, a stainless steel hollow cylindrical deodorizing / insulating tank 19 (content: 2.3 m ³ , outer circle diameter: 2.45 m, height: 3.
15 m), a bed layer 52 of 25 cm in depth made of gravel and a deodorizing material layer 20 of 2.5 m in depth made of sawdust were formed.

In the summer time when the outside air temperature is 27 ° C., the aeration pump 29 (circulating submersible pump with ejector: air supply capacity: 20 m ³ /hour×1.5 kw) and the bubble erasing machine 43 (airtight type 300 rpm × 0.2 kw) are driven. did. After about 70 hours of circulation aeration, liquid manure 6
Rose to 64 ° C. At this point, the fermentation treatment is terminated, and 3 m ³ of the fermentation treatment liquid 12 at the water level from the flow port 41 a to the outlet 16 a is put into the secondary fermentation tank 15 (content: 9 m ³ ).
The treatment tank 11 is replenished with 3 m ^{3 of} liquid manure 6 and charged with 75 g of frozen photosynthetic bacteria, and the secondary fermentation tank 15 has an aeration blower 63 (0.1 kg / m ² × 0.35 m ³ /min×0.4 kw × 25A) was driven and again aerated for about 70 hours. The fermentation treatment liquid 12 in the secondary fermentation tank 15 became a black-brown liquid (ripe liquid fertilizer) 17 having a low viscosity without a bad smell. The temperature of the mature liquid fertilizer 17 at this time was 41 ° C.

Subsequently, the supply pump 55 (0.05 m ³ / min × 7 m
× 0.25kw × 40A) to drive 50 liters / min of mature liquid fertilizer
17 was dispersed and dispersed in a deodorizing material layer 20 in a deodorizing / heating tank 19. At this time, the temperature in the deodorization / insulation tank 19 was 43 ° C.

Thereafter, the suction fan 25 (750 m ³ / hour × 150 mmA
q × 1.5 kw) to drive the odor 23 from the first suction duct 22 piped to the livestock barn 1 and the manure processing facility into the deodorization / insulation tank 19. At this time, the inside of the barn 1 was in a reduced pressure state of 2-3 mmAq. During the odor suction, 15 liters of mature liquid fertilizer 17 was intermittently sprayed every hour.

The odor 23 contained 0.8 ppm of ammonia and 0.004 ppm of trimethylamine.
Out of the gas did not contain any.

When the test was carried out in winter at an outside air temperature of −10 ° C., the temperature of the liquid manure 6 was raised to 59 ° C.
35 ° C. The temperature in the deodorizing / insulating tank 19 was 37 ° C.

The odor 23 contained 7.6 ppm of ammonia and 0.035 ppm of trimethylamine.
Out of the gas did not contain any.

[0054]

As described above, according to the present invention, a liquid manure for deodorizing malodor is produced from the excrement of livestock animals, and the liquid fertilizer is used to deodorize the malodor generated in the facility.
Since the residue of excrement can be used as fertilizer by spraying liquid fertilizer, it is possible to provide an excrement disposal device for livestock animals that does not affect the outside of the facility.

Therefore, it can be said that the industrial applicability of the present invention is very high.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a livestock animal excrement disposal apparatus according to the present invention.

FIG. 2 is an explanatory diagram schematically showing the livestock house, the solid-liquid separation device, and the separated liquid storage tank shown in FIG.

FIG. 3 is a partial cross-sectional side view schematically showing a cylindrical vertical processing tank, a hollow cylindrical deodorizing and heat retaining tank, and a secondary fermentation tank shown in FIG.

FIG. 4 is a plan view of the hollow cylindrical deodorizing and heat retaining tank shown in FIG.

FIG. 5 is a vertical cross-sectional side view illustrating a defoaming device of the cylindrical vertical processing tank shown in FIG.

6 is a sectional view taken along line AA ′ of the defoaming device shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cattle barn 3 Excreted manure 4 Solid-liquid separation device 5 Solid matter 6 Liquid manure 9 Delivery pipe 10 Separation liquid storage tank 11 Processing tank 12 Fermentation treatment liquid 13 Inflow pipe 15 Secondary fermentation tank 16 Outflow pipe 17 Ripe liquid fertilizer 18 Supply pipe 19 Deodorization Vessel 21 Supply pipe 22 First suction duct 23 Odor 24 Second suction duct

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) // A61L 9/01 (72) Inventor Haruji Haruka, Iwase-mura, Iwase-gun, Fukushima Prefecture F-term (reference) 2B101 CB01 4C080 AA07 BB02 BB04 BB05 BB06 CC13 HH05 MM31 MM33 MM40 NN24 QQ11 QQ17 QQ20 4D002 AA13 AA14 AA40 AB02 AC10 BA17 CA01 CA07 CA20 DA59 DA66 EA06 EA07 GA01 BA01 CA01 BA01 CA02 CC01 DB32 DB33 EA16 EB11 4H061 AA03 CC37 DD20 EE61 EE64 EE66 FF01 GG48 GG70 HH42 HH44 JJ01 LL05 LL26

Claims (3)

[Claims] 1. A solid-liquid separator 4 for separating solids 5 from excrement 3 of livestock animals transported from the barn 1 to obtain liquid manure 6, and a first transfer pipe 13 connected to the solid-liquid separator 4. A cylindrical vertical type having a hopper-shaped lower part 26 for aerating the liquid manure 6 which has been sent through the first transfer pipe 13 and being fermented by photosynthetic bacteria to obtain a fermentation treatment liquid 12. The fermentation treatment liquid 12 which is connected to the treatment tank 11 and the cylindrical vertical treatment tank 11 via the second transfer pipe 16 and sent through the second transfer pipe 16 is further subjected to aeration treatment to obtain a liquid fertilizer. A second fermentation tank 15 that obtains 17, a third transfer pipe 18 that is piped from the secondary fermentation tank 15 to the livestock house 1 and sends out the liquid fertilizer 17 to the livestock house 1;
A deodorizing material layer made of an organic material which is integrally provided around the periphery of the cylindrical vertical processing tank 11 and has a heat retaining effect therein.
The fourth transfer for supplying the liquid fertilizer 17 to the deodorizing material layer 20 by connecting the hollow cylindrical deodorizing and heat retaining tank 19 and the secondary fermentation tank 15 to the hollow cylindrical deodorizing and heat retaining tank 19 in which 20 is formed. A pipe 21 and a pipe extending from the hollow cylindrical deodorizing / insulating tank 19 to the stable 1
The first duct 22 that sucks the odor 23 filled therein into the hollow cylinder type deodorization / insulation tank 19 and the inside of the hollow cylinder type deodorization / insulation tank 19 connected to the hollow cylinder type deodorization / insulation tank 19. A second duct 24 for sucking air and discharging the air to the atmosphere,
17 is sprayed on the livestock house 1 and the deodorizing material layer 20 to deodorize and sterilize, and the inside of the livestock house 1 is depressurized through the hollow cylindrical deodorizing and heat retaining tank 19 by sucking from the second duct 24, and An excrement disposal device for livestock animals, characterized in that the malodor 23 taken into the hollow cylindrical deodorizing / insulating tank 19 through the first duct 22 is passed through the deodorizing material layer 20 for deodorization. 2. A liquid fertilizer 17 is prepared by adding 20 to 30 g of photosynthetic bacteria to 1 m ³ of liquid manure 6 and aerating the fermentation solution 12 for 50 to 75 hours for another 50 to 75 hours. 2. The livestock excrement disposal apparatus according to claim 1, wherein the apparatus is a fully liquid fertilizer made of a low viscosity liquid. 3. The livestock animal according to claim 1, wherein the organic material is at least one selected from sawdust, rice husk, husk, bean husk, peanut hull, shredded rice straw, and shredded wheat straw. Excrement disposal equipment.