KR20130024429A - Pig production system with an anaerobic fermentation process of pig-slurry - Google Patents

Abstract

PURPOSE: A piggery system including an underground anaerobic fermentation process for pig slurry is provided to minimize the temperature variations of an anaerobic bioreactor, and store livestock excretions from a piggery by the self-weights of the excretions. CONSTITUTION: A piggery system including an underground anaerobic fermentation process for pig slurry includes a piggery(1), and an underground anaerobic bioreactor(2). The piggery is equipped with a porous plate, which is placed to be separated from a bottom surface, in order to separately collect excretions from livestock. The underground anaerobic bioreactor is extended from the lower portion of the piggery, and is buried underground. The underground anaerobic bioreactor implements methane fermentation on the excretions from the piggery, and then forms the excretions, on which the methane fermentation is implemented, into an anaerobic digestion filtrate. The underground anaerobic bioreactor collects biogas generated in the methane fermentation through a collecting part(25) installed at a ceiling attic space.

Description

PIG PRODUCTION SYSTEM WITH AN ANAEROBIC FERMENTATION PROCESS OF PIG-SLURRY}

The present invention relates to a piglet system including an underground anaerobic fermentation process of pig slurry, and more specifically, to the anaerobic digestion filtrate through an anaerobic reaction tank buried in the ground receiving livestock manure from the barn, and then precipitates the anaerobic digestion filtrate The clear supernatant is fed back to the barn and reused as washing water for livestock manure, and the precipitated anaerobic filtrate is collected separately and used for liquid fertilizer / compost production, or it is applied to the composting stage of dry anaerobic reactor or dry aerobic reactor to ferment the compost. The present invention relates to a piglet system including an underground anaerobic fermentation process of a donsley slurry structure that can be used as an anaerobic digestion.

Recently, a technology for producing biogas such as methane by anaerobic digesting organic waste such as livestock manure and using it for cogeneration is being developed.

As described above, the method of producing and using biogas from organic waste is that in addition to using biogas as an energy source, the anaerobic digestion filtrate can be reduced to farmland and used as liquid fertilizer (liquid fertilizer). It is in the spotlight in that pollution load can be reduced.

In particular, the anaerobic treatment method can produce methane gas of high purity without odor, and when energy is installed (hot water / electricity) and installed in a barn, energy neutralization without using external energy can be achieved.

However, this anaerobic treatment method requires facilities for collecting the livestock manure from the house separately, and thus the facility cost is high and it is installed on the ground. In particular, in Korea, it is difficult to secure land, and in winter, And the supply of the auxiliary heat due to the heat loss due to the convection may be large, resulting in a problem of low economical efficiency.

The present invention has been made in view of the above problems, and the first object of the present invention is to embed an anaerobic reaction tank in the lower part of the barn, to minimize the temperature change of the anaerobic reaction tank, and to further reduce livestock manure by the weight of the barn. It is designed to provide storage, including the energy efficient Don Slurry underground anaerobic fermentation process.

The second object of the present invention is to supply the livestock manure of the barn, anaerobic digestion filtrate through an anaerobic reactor buried underground, then precipitate the anaerobic digestion filtrate to re-supplied clear supernatant to the barn to reuse the wash water of livestock manure The precipitated anaerobic filtrate is collected separately and used for liquid fertilizer / compost production, or it can be used as an anaerobic digestion filtrate to ferment the compost by spraying it on the compost of dry anaerobic reactor or dry aerobic reactor. It is to provide a pig company system including anaerobic fermentation process.

The present invention according to the characteristics of the present invention for achieving the above object, the first invention relates to a piglet system including the underground anaerobic fermentation process of the Don Slurry, and can separately collect the livestock manure discharged from the barn A barn (1) having a porous plate (11) disposed so as to be spaced apart from the bottom surface; And buried underground in the lower part of the barn 1 to receive livestock manure collected in the barn 1 and methane fermentation to anaerobic digestion and biogas generated during methane fermentation to the ceiling doug medium space. Underground anaerobic reaction tank (2) to collect through the installed collecting unit 25; including, the underground anaerobic reaction tank (2) is to supply the supernatant generated by precipitation of the methane fermented anaerobic digestion filtrate to the barn (1) It is reused as washing water of livestock manure, and the precipitated anaerobic filtrate is characterized in that it is utilized for the production of manure / compost.

The second invention, in the first invention, the underground anaerobic reaction tank (2) is a storage tank 21 for receiving and temporarily storing the livestock manure generated in the barn (1) and the livestock manure stored temporarily in the storage tank (21) The acid fermentation tank 22 which is supplied and stirred and hydrolyzed, the methane fermentation tank 23 which is fed and stirred and methane fermented by the organic digestion filtrate produced by hydrolysis in the acid fermentation tank 22, and the methane fermentation tank 23 The anaerobic digestion filtrate is supplied and precipitated, and the supernatant is supplied to the barn (1) and reused as washing water for livestock manure, and the settling anaerobic filtrate is composed of a settling tank (24) which is discharged to the outside and utilized for liquid fertilizer / compost production It is done.

The third invention, in the first invention, the hot water pipe (H / P) or heating coil to warm the bottom surface of the acid fermentation tank 22 and the methane fermentation tank 23 to promote the anaerobic digestion by anaerobic microorganisms It is preferable to further include.

The fourth invention, in the first invention, the porous plate 11 further comprises a plurality of through-holes 111, so that the livestock manure to the underground anaerobic reaction tank (2) on the bottom surface of the barn (1) The ball screw 12 or the motor (M) is characterized in that it further comprises a mill plate 13 which is moved by the chain 132 connected.

The fifth invention, in the first invention, the porous plate 11 further comprises a plurality of through-holes 111, characterized in that the bottom surface of the barn 1 is formed to be inclined so as to move the livestock manure by its own weight It is done.

The sixth invention, in the second invention, the bottom of the sedimentation tank 24 and the acid fermentation tank 22 is constructed in the hopper form to recycle the precipitated anaerobic filtrate precipitated in the sedimentation tank to the acid fermentation tank 22 to be used as inoculated sludge. It is characterized in that configured to be.

The seventh invention is characterized in that, in the second invention, the methane fermentation tank 23 and the acid fermentation tank 22 further include an underwater stirrer 26 which is stirred by the rotation of a fan to promote fermentation.

Eighth invention, in the seventh invention, the methane fermentation tank 23 can guide the organic digestion filtrate pumped from the acid fermentation tank 22 to the lower layer of the methane fermentation tank to increase the efficiency of stirring through the agitator 26 It is preferable to further include a guide tube 231 extending to the bottom surface of the methane fermentation tank (23).

According to the piglet system including the underground anaerobic fermentation process of the pork slurries according to the present invention, by embedding the anaerobic reaction tank in the lower part of the barn, to minimize the temperature change of the anaerobic reaction tank, and also to store the livestock manure by the own weight The energy efficiency is excellent.

In addition, anaerobic digestion filtrate is supplied through the anaerobic reactor buried under the livestock manure at the basement, and the anaerobic digestion filtrate is precipitated. May be collected separately and used for liquid fertilizer / compost production, or used as an anaerobic digestion filtrate to ferment the compost by spraying it on the composting stage of a dry anaerobic reactor or a dry aerobic reactor, thereby increasing the efficiency of the pig house system.

1 is a block diagram of a pig company system including the underground anaerobic fermentation process of the pork slurry according to the present invention,
2 is a barn configuration diagram of another example according to the present invention;
3 is another example of a barn configuration in accordance with the present invention;
4 is a configuration diagram of another example anaerobic reactor extracted from FIG.
5 is an operation of the pig company system including the underground anaerobic fermentation process of the pork slurry according to FIG.

Hereinafter will be described in detail with the accompanying drawings with respect to the pig company system including the underground anaerobic fermentation process of the pork slurry according to the present invention.

1 is a schematic diagram of a piglet system including an underground anaerobic fermentation process of a donsley slurry according to the present invention, Figure 2 is a configuration diagram of another example according to the present invention, Figure 3 is another exemplary stall according to the present invention It is a block diagram and FIG. 4 is a block diagram of another example anaerobic reactor taken from FIG.

As shown in Figures 1 to 4, the present invention is supplied with livestock manure of the barn through anaerobic digestion filtrate through an anaerobic reactor (2) buried underground and then precipitated the anaerobic digestion filtrate clear supernatant re-entering the barn It is supplied and reused as washing water for livestock manure, and the precipitated anaerobic filtrate is collected separately and used for liquid fertilizer / compost production, or used as an anaerobic filtrate to ferment the compost by spraying it on the composting stage of a dry anaerobic reactor or a dry aerobic reactor. The present invention relates to a pig company system including an underground anaerobic fermentation process of a pork slurries.

The piglet system including the underground anaerobic fermentation process of Donsley is composed of two parts, which is composed of a barn (1) and an underground anaerobic reactor (2) buried in the lower part of the barn (1). .

The barn 1 is a structure having a porous plate 11 so as to separately collect the livestock manure discharged from the livestock. Here, the porous plate 11 is a pit, that is, the through-hole 111 is formed over the entire surface, and is configured to collect livestock manure discharged from the livestock to the lower portion of the porous plate 11.

At this time, the lower portion of the porous plate 11, that is, the bottom surface of the barn 1 is formed to be inclined to one side, so that the manure can be induced in one direction by its own weight.

As another example, as shown in Figure 2, the bottom plate of the livestock (1) by installing the plate 13 which is moved by the ball screw 12 or the chain (132) connected to the motor (M) to the livestock manure underground anaerobic reaction tank Of course, it can be configured to be forcibly supplied to (2).

In this case, when installing the ball screw 12, as shown in Figure 3, the bottom surface of the barn (1) to form a narrower toward the center so as to take the form of the hopper (H), the ball screw 12 is installed in the center By the rotation of the ball screw 12 can be configured to be forced to transport livestock manure in one direction.

In addition, in the case of installing the mill plate 13, the mill plate is in close contact with the bottom surface of the barn (1), the gear 131 is coupled to the side of the mill plate 13, the gear 131 is connected to the motor (M) It can be configured to be coupled to the chain 132 to forcibly transport the livestock manure dropped to the bottom surface of the barn (1) in one direction.

On the other hand, the underground anaerobic reaction tank (2) is buried underground to be delivered to the lower part of the barn (1) is supplied with livestock manure collected in the barn (1) by methane fermentation and anaerobic digestion filtrate, and generated during methane fermentation The biogas is collected through the collecting unit 25 installed in the ceiling doug medium space. The collected biogas (methane gas) is used as an energy source for hot water or power generation.

At this time, the underground anaerobic reaction tank (2) is configured to receive livestock manure through the first transport pipe (3) connected to the barn (1), the first transport pipe (3) has a valve (V) It can be configured to control the inflow of livestock manure.

The underground anaerobic reaction tank (2) supplies the supernatant generated by precipitating the methane-fermented anaerobic filtrate to the barn (1) and reuses it as washing water for livestock manure, and the precipitated precipitated anaerobic filtrate is discharged to the outside to discharge liquid / compost. It can be used for production or as an anaerobic filtrate for fermenting biomass by spraying on composting stages of dry / wet anaerobic tanks or dry / wet aerobic reactors.

Here, the underground anaerobic reaction tank 2 is composed of four parts, which is composed of a storage tank 21, an acid fermentation tank 22, a methane fermentation tank 23, and a precipitation tank 24.

The storage tank 21 is for anaerobic decomposition in a slurry state by microorganisms in a closed space by receiving livestock manure generated from the barn 1 and having a structure connected to the first transfer pipe 3.

In addition, the acid fermentation tank 22 functions to acidify and ferment the hydrolyzed by receiving livestock manure in a slurry state temporarily stored in the storage tank 21.

In addition, the methane fermentation tank 23 receives an organic digestion filtrate generated by hydrolysis in an acid fermentation tank and agitates in water to anaerobic digestion to anaerobic filtrate.

Here, the acid fermentation tank 22 and the methane fermentation tank 23 are respectively configured to collect biogas generated during anaerobic fermentation through a collecting unit 25 installed in the ceiling doug medium space.

In addition, the acid fermentation tank 22 and the methane fermentation tank 23 is configured to maximize the effect of thermal insulation by minimizing the temperature change by the heat insulating material (T) for thermal insulation, and also by heating and anaerobic digestion by anaerobic microorganisms It is configured to further include a hot water pipe (H / P) or heating coil to be promoted.

At this time, the acid fermentation tank 22 and the methane fermentation tank 23 is configured to promote the fermentation by installing an underwater stirrer 26 that is stirred by the rotation of the fan on the bottom surface. At this time, the underwater stirrer 26 installed in the methane fermentation tank 23 is installed to be inclined upward so that the lower layer liquid and the supernatant liquid circulate, as well as vortices hovering inside the methane fermentation tank 23 so that rapid stirring can be achieved. It is configured to generate high purity biogas.

The methane fermentation tank 23 guides the organic digestion filtrate pumped from the acid fermentation tank 22 to the lower layer of the methane fermentation tank 23 to increase the efficiency of the agitation through the water stirrer 26. It may be configured to further include a guide tube 231 extending to the bottom surface.

 The sedimentation tank 24 is supplied with the anaerobic digestion filtrate of the methane fermentation tank 23 and settled, the supernatant is supplied to the barn (1) and reused as washing water for livestock manure, and the settling anaerobic filtrate is discharged to the outside to produce liquid fertilizer / compost It functions to utilize. At this time, the precipitated anaerobic filtrate can be used as an anaerobic filtrate to ferment the biomass by spraying in the composting stage of the dry / wet anaerobic reaction tank or dry / wet aerobic reaction tank.

In addition, the settling tank 24 may be installed with a second transfer pipe 4 for pumping the supernatant to the bottom surface of the barn (1).

Meanwhile, between the storage tank 21 and the acid fermentation tank 22, and the methane fermentation tank 23 and the settling tank 24, a pump P is provided so that the contents can be forcibly pumped, and as another example, the storage tank 21 ) And the acid fermentation tank 22, the methane fermentation tank 23 and the settling tank 24 in one storage tank (not shown) in the partition plate (not shown), the partition plate (not shown) to the top Of course, it can be configured to be overflowed.

Meanwhile, as another example, as shown in FIG. 4, the bottoms of the settling tank 24 and the acid fermentation tank 22 are constructed in the hopper form to recycle the settling anaerobic filtrate of the settling tank to the acid fermenting tank 22 to improve anaerobic digestion efficiency. It is composed. To this end, the settling tank and the acid fermentation tank 22 may be connected to each other through a connection line 5 provided with a pump (P).

Hereinafter, the operation of the pig house system including the underground anaerobic fermentation process of the pork slurry according to the present invention will be briefly described.

5 is an operation of the pig company system including the underground anaerobic fermentation process of the pork slurry according to FIG.

As shown in FIG. 5, first, the livestock manure of the barn 1 is accumulated on the bottom surface of the barn via the through-hole 111 of the porous plate 11.

The livestock manure accumulated in the barn is moved to one point by its own inclined bottom surface, and the livestock manure moved to one point is transferred to the storage tank 21 of the underground anaerobic reactor 2 through the first transfer pipe 3. Stored.

The livestock manure stored in the storage tank 21 is anaerobicly decomposed into a slurry by microorganisms in an enclosed space.

The anaerobic decomposed slurry is supplied to the acid fermentation tank 22 by pumping to collect biogas generated during hydrolysis through the collecting unit 25.

The organic digested filtrate hydrolyzed in the acid fermentation tank 22 is supplied to the methane fermentation tank 23 by pumping to anaerobic digestion to methane bacteria. The biogas gas generated at this time is also collected by the collecting unit 25.

The anaerobic digestion filtrate of the methane fermentation tank 23 is pumped to the settling tank 24, the settling tank 24 is used for liquid fertilizer / compost production by discharging the precipitated slurry to the outside, or dry / wet anaerobic reaction tank or dry / wet aerobic It is used as an anaerobic filtrate to ferment biomass by spraying it on the composting stage of the reactor.

And the supernatant of the settling tank 24 is pumped through the second transfer pipe (4) is recycled to the wash water of the livestock house (1).

Although the present invention has been described in connection with the preferred embodiments mentioned above, various other modifications and variations will be possible without departing from the spirit and scope of the invention. It is, therefore, to be understood that the appended claims are intended to cover such modifications and changes as fall within the true scope of the invention.

1: barn 11: perforated plate 111: through hole
12: ball screw 13: plate
131: gear 132: chain
2: anaerobic reactor 21: reservoir 22: acid fermentation tank
23: methane fermentation tank 231: guide tube
24: sedimentation tank 25: collecting part
26: Underwater Agitator
3: first transfer pipe
4: second transfer pipe
5: connection line
H / P: Hot water pipe T: Insulation P: Pump
M: Motor V: Valve
H: Hopper

Claims (8)

A barn (1) having a perforated plate (11) spaced apart from the bottom surface so as to separately collect the livestock manure discharged from the livestock; And
Buried in the basement to be addressed to the lower part of the barn (1) is supplied with livestock manure collected in the barn (1) by methane fermentation and anaerobic digestion filtrate, and biogas generated during the methane fermentation is installed in the ceiling doug medium space Underground anaerobic reactor (2) to collect through the collecting unit 25; including;
The underground anaerobic reactor 2 supplies the supernatant generated by precipitating the methane fermented anaerobic filtrate to the barn (1) and reuses it as washing water for livestock manure. Donsa system including the underground anaerobic fermentation process of Don Slurry.
The method of claim 1,
The underground anaerobic reaction tank (2) is a storage tank 21 for receiving and temporarily storing livestock manure generated in the barn (1), and an acid fermentation tank for hydrolyzing by receiving the livestock manure stored temporarily in the storage tank (21) ( 22) and the organic digestion filtrate produced by hydrolysis in the acid fermentation tank 22, the methane fermentation tank 23 for stirring and methane fermentation, and anaerobic digestion filtrate of the methane fermentation tank 23 is supplied to precipitate and supernatant It is supplied to the livestock barn (1) and reused as washing water for livestock manure, and the settling anaerobic fermentation process of Donsley's underground anaerobic fermentation characterized in that it consists of a settling tank (24) which is discharged to the outside and utilized for liquid fertilizer / compost production. Donsa system including.
The method of claim 1,
The bottom surface of the acid fermentation tank 22 and the methane fermentation tank 23 of the pork slurries characterized in that it further comprises a hot water pipe (H / P) or heating coil so that the anaerobic digestion by anaerobic microorganism is promoted Pig house system including underground anaerobic fermentation process.
The method of claim 1,
The porous plate 11 further includes a plurality of through holes 111,
The bottom surface of the barn (1) further comprises a wheat plate (13) which is moved by a chain (132) connected to the ball screw 12 or the motor (M) to supply livestock manure to the underground anaerobic reaction tank (2) Donsa system including the underground anaerobic fermentation process of Don Slurry.
The method of claim 1,
The porous plate 11 further includes a plurality of through holes 111,
The piglet system including the underground anaerobic fermentation process of the pork slurries, characterized in that the bottom surface of the barn (1) is inclined so as to move the livestock manure by its own weight.
The method of claim 2,
Construction of the bottom of the settling tank 24 and the acid fermentation tank 22 in the hopper form recycles the precipitated anaerobic filtrate precipitated in the settling tank to the acid fermentation tank 22, characterized in that it is configured to be used as inoculated sludge Pig house system including underground anaerobic fermentation process.
The method of claim 2,
The methane fermentation tank (23) and acid fermentation tank (22), pigs system including the underground anaerobic fermentation process of Donsley, characterized in that it further comprises an agitator (26) by stirring the rotation of the fan to promote fermentation.
8. The method of claim 7,
The methane fermentation tank (23) guides the organic digestion filtrate pumped from the acid fermentation tank (22) to the lower layer of the methane fermentation tank to increase the efficiency of the agitation through the water stirrer (26) to the bottom surface of the methane fermentation tank (23). Donsa system including the underground anaerobic fermentation process of Don Slurry, characterized in that it further comprises a guide tube (231) extended to.

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