JP2981228B1 - Livestock manure fermentation treatment apparatus and defoaming mechanism used for the same - Google Patents

Abstract

Kind Code: A1 A conventional processing tank requires a long time for fermentation, resulting in a reduction in processing efficiency. In addition, a large amount of foam is generated because air is injected into liquid manure to stir the liquid. It was difficult to generate and spread over the entire liquid surface and defoam. A distributor (3) attached to a discharge side of a pump means (2) for sending liquid manure (F) and outside air to a lower part of a processing tank (1), and a lower end opening (40) above the distributor (3). An air lift pipe (4) for raising the liquid manure (F) upright on the liquid surface (S) of the liquid manure (F), and an air lift pipe (4) arranged on the outer periphery of the air lift pipe (4), and the upper end thereof Is connected to the ceiling surface (13) of the processing tank (1), the center well (5) having the through hole (51) formed on the outer peripheral side, and the liquid manure (F) raised in the air lift pipe (4). And a defoaming mechanism (6) for distributing and discharging a part of the inside and outside of the center well (5).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a livestock manure for producing liquid manure by subjecting livestock manure to solid-liquid separation, storing liquid manure in a treatment tank, aerating it for a predetermined time and subjecting it to microbial fermentation treatment. And a defoaming mechanism used therein.

[0002]

2. Description of the Related Art Conventionally, in such a fermentation treatment apparatus, a fermentation treatment tank formed of a rectangular box made of concrete or a metal plate has been generally used.

However, since the processing tank having the above-mentioned shape is a rectangular box type, it is difficult to distribute oxygen to every corner.
There was a problem that fermentation by uniformly aerating the inside of the tank was not sufficiently performed. Sufficient fermentation requires a long time, resulting in a decrease in treatment efficiency. Conversely, if the capacity of the aeration pump is increased, an increase in the amount of electric power, etc., will lead to an increase in running costs, and many problems remain in any case. Was.

[0004] Further, since air is injected into liquid manure, which is relatively viscous, and is forcedly stirred, many air bubbles squirt onto the liquid surface without being completely dissolved in the liquid phase, and a large amount of air bubbles are emitted. There is also a problem that bubbles are generated and spread over the entire liquid surface, and it is difficult to defoam the bubbles.

[0005]

Therefore, the present invention has been made in view of the above-mentioned problem, and a good circulation channel is formed in a liquid phase by an effective arrangement of pump means, so that the inside of a processing tank is uniformly formed. It is an object of the present invention to provide a livestock manure fermentation treatment apparatus for efficiently performing aeration treatment, and to provide a defoaming mechanism capable of effectively eliminating bubbles generated on the liquid surface.

[0006]

In order to achieve the above object, a livestock manure fermentation treatment apparatus according to the present invention and a defoaming mechanism used for the same are configured as follows.

More specifically, a livestock manure fermentation treatment apparatus (A) in which solid-liquid separated livestock manure (F) is stored in a cylindrical vertical treatment tank (1) having a hopper-shaped lower portion, and aerated and fermented. At

A pump means (2) for mixing the liquid manure (F) sucked from near the bottom (11) of the processing tank (1) with the outside air and sending it to the vicinity of the center at the lower center of the processing tank (1).
And a distributor (3) attached to the discharge side of the pump means (2) and distributing and discharging upward and in several radial directions, and a lower end opening (40) above the distributor (3) at an appropriate interval. And the liquid level (S) of the liquid manure (F) from here.
The airlift pipe (4), which rises up and raises the liquid manure (F) mixed with air bubbles, is wrapped around the outer circumference of a predetermined length of the airlift pipe (4) at a predetermined interval. And a cylindrical center well (5) having an upper end connected to the ceiling surface (13) of the treatment tank (1) and having through holes (51) formed at several locations on the outer peripheral side near the upper end. And a part of the liquid mixed manure (F) mixed with air bubbles formed on the exposed surface of the air lift pipe (4) and rising in the air lift pipe (4), to the outside of the center well (5). Distribution pipe section (6
0) and a spray pipe line section (61) which is arranged in communication with the upper part of the distribution pipe line section (60) to spray a part of the liquid manure (F) into the center well (5). And a foam mechanism (6).

As one specific configuration of the pump means (2), a pump (2) with an ejector is disposed in the processing tank (1) and connected to the suction side (20) of the pump (2). The intake pipe (21a) of the guide pipe (21) is arranged near the bottom (11) in the processing tank (1), and the intake pipe (21) opened to the outside of the processing tank (1) on the suction side of the ejector (22). 24).

Further, the liquid manure (F) treated in the treatment tank (1) is further treated and a mature liquid fertilizer (L) is additionally injected into the treatment tank (1) as needed, whereby the treatment tank (1) is added. ) Is maintained at a constant level, and as an additional injection site, the liquid manure (F) in the process of being transferred to the distributor (3) is treated in the treatment tank (1). The liquid manure (F) which has been further processed and further matured from the liquid manure (F) thus obtained may be appropriately additionally injected.

[0011] The invention is characterized in that a configuration for introducing air for accelerating the upward flow into the air lift pipe (4) is added to the wrapper pipe (41) of the air lift pipe (4).

As another configuration, the liquid manure (F) of the livestock separated into solid and liquid is stored in a cylindrical vertical processing tank (1) having a hopper-shaped lower part, and aeration is performed to ferment the livestock manure. In the apparatus (A), the suction port (91) is arranged near the bottom (11) of the processing tank (1), and the discharge port (92) is provided.
a) a jet pump (9) arranged upward substantially near the center of the processing tank (1), and a lower end opening (40) at an appropriate interval above the discharge port (92a) of the jet pump (9). A chimney-shaped air lift pipe (4), which is arranged so as to cover the liquid manure (F) and rises up from the liquid level (S) to raise the liquid manure (F) mixed with air bubbles; The air lift pipe (4) is arranged so as to be wrapped around the outer circumference of a predetermined length at a predetermined interval, and the upper end thereof is connected to the ceiling surface (13) of the processing tank (1). A cylindrical center well (5) having through holes (51) formed in several places, and an air lift pipe (4) formed at the liquid surface exposed portion of the air lift pipe (4).
Pipe part (60) for radially distributing and discharging a part of the liquid manure (F) mixed with air bubbles rising and falling to the outside and inside of the center well (5), and the distribution pipe part (60) An antifoaming mechanism (6) composed of a spray duct (61) which is arranged in communication with the upper part and sprays a part of the liquid excreta into the center well (5).

In the processing tank (1) having the above-mentioned structure, a shearing blade type defoaming device is connected to the ceiling (13) of the processing tank (1) to which the upper end of the center well (5) is connected. The device (7) may be arranged.

A characteristic defoaming mechanism (6) used in the processing tank (1) is formed at an exposed portion of the liquid surface of the air lift pipe (4), and the air bubbles rising in the air lift pipe (4) are formed. A part of the mixed liquid manure (F) is transferred to the center well (5).
A distribution pipe line (60) for radially distributing and discharging the outside and the inside of the pipe, and a part of the liquid excrement (F) which is arranged in communication with an upper part of the distribution pipe section (60) and which is a center well (5).
And a spray pipe line part (61) for spraying the inside.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment (Embodiment 1) of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a longitudinal sectional view schematically showing the entire structure of the present embodiment, FIG. 2 is an enlarged longitudinal sectional view showing the vicinity of the bottom of the present embodiment, and FIG. FIG. 4 is a perspective view showing a distributor of a main part of FIG. 4, and FIG. 4 is an enlarged longitudinal sectional view showing the vicinity of the distributor. FIG.
Is a partially cutaway perspective view showing a defoaming mechanism of a main part of the present embodiment, and FIG. 6 is an enlarged longitudinal sectional view showing that part. FIG. 7 shows another embodiment according to the present invention.

The illustrated fermentation processing apparatus A mainly comprises a processing tank 1, a pump 2 with an ejector as a pump means, a distributor 3, an air lift pipe 4, a center well 5, and a defoaming mechanism 6. .

The treatment tank 1 is for injecting and storing a liquid component (referred to as "liquid excreta") obtained by separating collected feces and urine of livestock with a solid-liquid separator (not shown). It is formed into a cylindrical shape and arranged vertically. The lower part thereof is formed in a hopper shape 10 having a gradually decreasing diameter, and a drain part 12 for removing sediment such as accumulated sand and gravel is formed in a bottom part 11 thereof. Ceiling surface 1 of the processing tank 1
3, an injection pipe 14 for injecting the liquid excrement F to be treated is inserted and disposed at a position lower than a predetermined water level by a predetermined distance (in the embodiment, about 3 mm from the bottom).
Discharge pipe 1 connected to the outside of the treatment tank 1
5 is connected to the secondary fermenter 8.

A pump with an ejector (hereinafter referred to as a “pump”) 2 is approximately one third of the bottom 11 in the processing tank 1.
At a height of The suction side 20 of the pump 2
, A guide pipe 21 having an inlet 21a at the tip thereof disposed near the bottom is attached to the outlet side of the ejector 22, and a flow pipe 23 bent in a substantially L shape is connected to the ejector 22 to process the tip 23a. It is arranged upward at a substantially central position of the tank 1. The ejector 22 is connected to an intake pipe 24 for introducing outside air.

The distributor 3 is provided with the flow pipe 23
And is attached so as to communicate with the distal end portion 23a. The distributor 3 includes an upwardly directed upper nozzle 30 and a plurality (six in this embodiment) of radially extending nozzles 3 extending radially from the expanded buffer space 31 and arranged obliquely downward.
2, 32,... In addition, a liquid feed pipe 33 is connected to the buffer space 31 so that the liquid fertilizer L that has been ripely fermented in the secondary fermenter 8 described below is appropriately fed into the buffer space 31.

The air lift tube 4 has a cylindrical chimney shape with both ends open, and is arranged upright at substantially the center of the processing tank 1 with the upper end opening exposed from the liquid surface S. The lower end opening 40 of the air lift tube 4 forms a wrapper tube 41 whose diameter is gradually increased downward.
Is arranged so as to cover the upper side of the space with a predetermined distance. A pneumatic tube 42 is connected to the wrapper tube 41 so that outside air is appropriately sent from the blower 43.

A cylindrical chimney-shaped center well 5 is disposed on the outer peripheral side of the air lift pipe 4 from approximately one third below and upwards. The tubes 4 are arranged concentrically with a certain interval from the outer peripheral surface of the tube 4, and the upper end 50 thereof is connected to the ceiling surface 13 of the processing tank 1. A large number of through-holes 51 are formed in the outer periphery of the ceiling surface 13 at a position lower than the connection portion.

Next, at the upper end of the air lift pipe 4, a defoaming mechanism 6 composed of a distribution pipe section 60 and a distribution pipe section 61 is integrally formed.

The distribution pipe section 60 communicates with the upper end opening of the air lift pipe 4 and has a large-diameter section 60a having a space covering the upper surface in a skirt shape, and a radially oblique section from the periphery of the large-diameter section 60a. A plurality of distribution pipes 60b extending downward and opening outside the center well 5;
and an overflow port 60c formed with a notch between the roots of b.

Further, the distribution pipe section 61 is provided with the enlarged diameter section 60.
a, and a plurality of scatter tubes 61a, 61a,... are radially arranged from the upper center of the space, and the tip opening 61b is directed downward in the center well 5 so that It is arranged near the outlet 60c.

In addition, near the center of the ceiling surface 13 of the processing tank 1 to which the center well 5 is extended and connected, an inlet 16 opened to the inside of the center well 5 is provided. Is installed. The defoaming device 7 is attached as needed, and the device configuration is as follows.
This is a shear wing-type impact type in which generated bubbles are crushed by rotating shear blades (not shown) to eliminate the bubbles. Since this is a conventional general technique, a detailed configuration is omitted. Here, the excrement that has been defoamed and becomes liquid is sent to the secondary fermentation tank 8 by the drain chute 70.

The secondary fermentation tank 8 is an open tank for storing the liquid excreta F processed by the present processing apparatus 1 and is aerated by a blower 80 and a bubble generator 81 so that the fermentation is completed.

[Operation of the Embodiment] Next, the operation of the fermentation treatment apparatus A will be described.

First, feces and urine of livestock and litter such as straw and sawdust to which the feces and urine are attached are separated into a solid content and a liquid content by a solid-liquid separator (not shown) of existing equipment. The liquid manure F (or simply referred to as “manure”) F is a liquid component
The water is poured into the treatment tank 1 to a predetermined water level and stored.

Next, the pump 2 with the ejector is started, and the bottom 1 of the processing tank 1 is moved through the inlet 21a of the guide pipe 21.
The manure F that has stayed in 1 is sucked and mixed with the air taken in from the suction pipe 24 by the ejector 22 and sent to the distributor 3 in the processing tank 1 by the flow pipe 23.

The sent manure F is distributed to the upper nozzle 30 and the six radiation nozzles 32 by the buffer space 31 of the distributor 3, and is jetted at a predetermined speed in each direction. Due to the ejection from the radiation nozzle 32, a flow obliquely downward in the radial direction is formed in the liquid phase, and the excrement F containing air bubbles moves toward the bottom portion 11. Thereby, the bottom 11 of the processing tank 1
Bubbles are carried to the vicinity, and anaerobicization can be prevented to form an aerobic atmosphere.

Here, from the liquid feed pipe 23 connected to the buffer space 31 of the distributor 3, the mature fertilizer in the secondary fermenter 8 is added as appropriate. Thereby, the fermentation-degrading enzyme is uniformly distributed in the treatment tank 1 to promote fermentation, and the water level of the liquid surface S in the treatment tank 1 is kept constant.

On the other hand, most of the excrement F containing air bubbles ejected from the upper nozzle 30 enters the wrapper tube 41 of the air lift tube 4 at a predetermined speed, and the air lift tube 4
Going up inside. At this time, the lower end opening 4 of the wrapper tube 41
In the vicinity of 0, a negative pressure state is formed, and the excrement F in the vicinity is drawn into the air lift tube 4. Further, the air compressed by the blower 43 is sent from the air supply pipe 42 to the wrapper pipe 41 to further accelerate the rising speed in the air lift pipe 4. As a result, the suction force is increased by lowering the vicinity of the lower end opening 40 to a lower negative pressure state, and the center well 5
Is made to be in a sparse state near the lower end, so that the manure F in the center well 5 flows downward more than the natural sedimentation.

Next, the manure F that has risen at a certain speed in the air lift tube 4 is passed through the defoaming mechanism 6 that communicates therewith.
And is distributed in the radial direction by the distribution pipe line 60, and further ascends to the distribution pipe line section 61.

In the distribution pipe section 61, the manure F spread at the enlarged diameter section 60a is distributed at a constant rate to the distribution pipe 60b and the overflow port 60c.
The manure F flowing through the distribution pipe 60b is discharged to the outside of the center well 5, and the manure F flowing out of the overflow port 60c is discharged to the inside of the center well 5. At this time, the manure F containing air bubbles generates a large amount of air bubbles and covers the liquid surface S.

On the other hand, the manure F that has flowed to the spraying duct 61 is
Radially distributed and flows to each spraying tube 61a, the tip opening 6
It is sprayed from 1b to the vicinity of the distribution pipe 60b inside the center well 5. As a result, the excreted manure F is
It functions to eliminate bubbles formed on the liquid surface S.

On the inside and outside of the center well 5, the gas content of the burst bubbles rises as it is, or rises in the center well 5 through the through hole 51 and flows to the defoaming device 7. Released to the outside air.

The foam generated on the liquid level S of the processing tank 1 can be eliminated by the defoaming mechanism 6 having the above-mentioned structure. The foam is defoamed by the impact-type defoaming device 7, and the drainage chute pipe 7
0 to the secondary fermenter 8. This secondary fermenter 8
In, the re-aeration is performed by the bubble generator 81 to which the blower 80 is connected, and the fermentation is promoted to become a fully mature liquid fertilizer.

After performing a uniform aeration by the liquid flow in the processing tank 1 for a predetermined time, the discharge pipe 15 is opened to excrete the manure F to a predetermined water level (upper third). Vessel 8
Send to Then, liquid manure F is again injected and replenished from the injection pipe 14, and the fermentation treatment is repeated.

Since the manure F in the treatment tank 1 after a predetermined time has passed is efficiently and effectively aerated and is almost in a state of near maturity, it is possible to remove the entire amount from the treatment tank 1. In order to keep the inoculum for the next treatment and to secure the optimum temperature required for fermentation, the temperature is reduced by one-third.

[Other Embodiments] Next, another embodiment (Embodiment 2) will be described. FIG. 7 is a longitudinal sectional view schematically showing the entire configuration of the second embodiment.

In the second embodiment, a jet pump 9 is arranged in place of the pump 2 with an ejector and the distributor 3 of the first embodiment. The other components are the same as those of the first embodiment, and thus the same reference numerals are given and the detailed description is omitted.

The jet pump 9 has a Venturi tubular main body 90, has a suction port 91 opened near the bottom 11 of the processing tank 1, and is arranged upright below the center of the center of the processing tank 1. . The discharge port 92a of the delivery pipe 92 whose diameter is gradually increased toward the upper side is opposed to the lower end opening 40 of the flapper pipe 41 of the air lift pipe 4 at a constant interval.

In the vicinity of the throat 93 of the jet pump 9,
Pneumatic tube 94 connected to blower 95 installed outside processing tank 1
Are connected in the upward direction. Further, a liquid feeding pipe 97 connected to the secondary fermentation tank 8 (omitted in FIG. 7) via a pump 96 is connected to the middle of the pneumatic feeding pipe 94 outside the processing tank 1.

When the jet pump 9 having such a configuration is started, the outside air is pressure-fed to the throat 93 via the air feeding pipe 94 to form a rapid upward flow. The throat 9
3 is in a reduced pressure state, and the bottom 1 of the processing tank 1 is drawn from the suction port 91.
In order to suck the manure F staying at 1, a flow toward the suction port 91 is formed in the liquid phase near the bottom 11.

From the discharge port 92 a of the jet pump 9, manure F containing air bubbles blows out toward the wrapper tube 41 of the air lift tube 4 and blows into the air lift tube 4. By the flow of the manure F in the vicinity by this flow, a flow toward the lower end opening 40 of the air lift tube 4 is formed in the liquid phase in the vicinity.

In this way, once the air lift pipe 4
The manure F blown up on the liquid surface S by the flow goes down inside the center well 5, flows toward the suction port 91 provided near the bottom 11, and toward the lower end opening 40 of the air lift pipe 4. It is divided into a flow and agitated while circulating in the processing tank 1.

The liquid feed pipe 97 connected in the middle of the air feed pipe 94 is used for the same purpose as the liquid feed pipe 33 of the first embodiment, and an appropriate amount of ripeness The liquid fertilizer thus obtained is supplied from the secondary fermenter 8.

[0049]

According to the present invention, the liquid manure can be uniformly circulated and stirred. Thereby, even near the bottom of the treatment tank, aerobic fermentation can be promoted without becoming anaerobic, and quick fermentation can be performed in a short time.

The defoaming mechanism of the present configuration can efficiently defoam generated bubbles, and the distributor of the present configuration can reduce the flow of air bubbles from the middle to the bottom of the processing tank. It has an effect that can be formed.

Further, in the present invention, since the excrement containing air bubbles is raised in the air lift tube, a large rising speed can be obtained, and as a result, the amount of drawing in from the lower end opening increases, and the inside of the processing tank is increased. Large flow can be formed. Since the excrement that has risen and squirted near the liquid level is lowered in the center well, it has an effect that it can be sent together with the air bubbles to a depth of the processing tank.

Further, since the inlet of the pump with the ejector or the suction port of the jet pump is arranged at the bottom formed in a hopper shape, this may be a draw-in factor and form a flow reaching the bottom in the processing tank. it can.

As described above, according to the present invention, each component synergistically forms a circulating flow in which the manure in the treatment tank spreads to the bottom to promote more uniform aeration, and as a result, A fermentation treatment apparatus for livestock manure, which is highly industrially useful, and a defoaming mechanism used for the same, which can efficiently treat the fermentation processing of livestock manure, which has been troublesome.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view schematically showing the entire configuration of the present embodiment.

FIG. 2 is an enlarged longitudinal sectional view showing the vicinity of the bottom of the embodiment.

FIG. 3 is a perspective view showing a distributor of a main part of the embodiment.

FIG. 4 is an enlarged longitudinal sectional view showing a vicinity of a distributor of a main part of the embodiment.

FIG. 5 is a partially cutaway perspective view showing a defoaming mechanism of a main part of the embodiment.

FIG. 6 is an enlarged longitudinal sectional view showing a part of the defoaming mechanism of the present embodiment.

FIG. 7 is another embodiment according to the present invention.

[Explanation of symbols]

 Reference Signs List A fermentation treatment apparatus F liquid manure (or manure) S liquid level L liquid fertilizer 1 cylindrical vertical treatment tank (treatment tank) 10 hopper-like 11 bottom 14 injection pipe 15 discharge pipe 2 pump with ejector (pump means) 21 guide pipe Reference Signs List 22 Ejector 23 Flow pipe 24 Intake pipe 3 Distributor 30 Upper nozzle 32 Radiation nozzle 33 Liquid feed pipe 4 Air lift pipe 5 Center well 6 Defoaming mechanism 60 minute piping path section 60a Large diameter section 60b Distribution pipe 60c Overflow port 61 Spraying Pipe section 61a Spraying pipe 61b Tip opening 7 (shear wing impact type) defoaming device 8 Secondary fermenter 9 Jet pump

Continuation of the front page (56) References JP-A-10-226590 (JP, A) JP-A-10-1382 (JP, A) JP-A-56-110897 (JP, U) (58) Fields investigated (Int .Cl. ⁶ , DB name) C02F 11/00-11/20 C02F 3/00 A01K 1/01 C05F 3/06

Claims (8)

(57) [Claims] 1. A livestock manure fermentation treatment apparatus (A) for storing solid-liquid separated livestock manure (F) in a cylindrical vertical treatment tank (1) having a hopper-shaped lower part, and aerating it by fermentation. A pump means (2) for mixing the liquid manure (F) sucked from near the bottom (11) of the processing tank (1) and the outside air and sending the mixed liquid to the center near the lower center of the processing tank (1); A distributor (3) attached to the discharge side of the pump means (2) and distributed and ejected in upper and several radial directions, and a lower end opening (40) is provided above the distributor (3) at an appropriate interval. A chimney-shaped air lift pipe (4), which rises up to the liquid level (S) of the liquid manure (F) and raises the liquid manure (F) mixed with air bubbles, Predetermined length of air lift pipe (4) Are arranged so as to be enveloped at a predetermined interval on the outer peripheral side of the container, and the upper end thereof is connected to the ceiling surface (13) of the processing tank (1), and through holes (51) are formed at several positions on the outer peripheral side near the upper end. A cylindrical center well (5), and a part of the liquid mixed manure (F) formed of air bubbles formed in the exposed surface of the air lift tube (4) and rising inside the air lift tube (4). Pipe part (60) for radially distributing and discharging the water to the outside and the inside of the center well (5), and a part of the liquid manure (F) arranged in communication with the upper part of the distribution pipe part (60). A fermentation treatment system for livestock manure, comprising: a spray pipe line section (61) for spraying water into a center well (5); and a defoaming mechanism (6). 2. The liquid manure (F) sucked from near the bottom (11) of the processing tank (1) and the outside air are mixed to form liquid manure (F) near the bottom (13) of the processing tank (1). In the pump means (2) for sending to the pump, a pump (2) with an ejector is arranged in the processing tank (1),
The inlet (21a) of the guide pipe (21) connected to the suction side (20) of the pump (2) is arranged near the bottom (11) in the processing tank (1), and is located on the suction side of the ejector (22). The livestock excrement fermentation treatment apparatus according to claim 1, wherein an intake pipe (24) opened outside the treatment tank (1) is communicated. 3. The liquid manure (F) treated in the treatment tank (1) is further processed and a mature liquid fertilizer (L) is additionally injected into the treatment tank (1) as needed, whereby the treatment tank (1) is added. 4. The livestock excrement fermentation treatment apparatus according to claim 1, wherein the water level in the above is kept constant. 4. A liquid manure (L) obtained by further processing the liquid manure (F) treated in the treatment tank (1) into the liquid manure (F) in the process of being transferred to the distributor (3) to be fully matured.
The fermentation treatment device for livestock manure according to claim 1 or 2, characterized in that: 5. A wrapper pipe (41) for an air lift pipe (4).
2. An air lift pipe according to claim 1, wherein air for accelerating the ascending flow is introduced into the air lift pipe.
The fermentation treatment device for livestock manure according to 2, 3, or 4. 6. A livestock manure fermentation treatment apparatus (A) in which solid-liquid separated livestock manure (F) is stored in a cylindrical vertical treatment tank (1) having a hopper-shaped lower part, and aerated and fermented. A jet pump (9) in which the suction port (91) is arranged near the bottom (11) of the processing tank (1) and the discharge port (92a) is arranged upward near the approximate center of the processing tank (1). The lower end opening (40) is disposed above the discharge port (92a) of the jet pump (9) at an appropriate interval so as to cover the lower end opening (40), and the liquid manure (F) stands up to the liquid level (S). A chimney-shaped air lift pipe (4) for raising liquid mixed manure (F) mixed with air bubbles, and an outer circumference of a predetermined length of the air lift pipe (4) arranged so as to be enveloped at a predetermined interval. The upper end is connected to the ceiling surface (13) of the processing tank (1). A cylindrical center well (5) formed with through holes (51) at several locations on the outer periphery near the upper end; and an air lift pipe formed at the liquid surface exposed portion of the air lift pipe (4). (4) a distribution pipe section (60) for radially distributing and discharging a part of the liquid-mixed manure (F) mixed with bubbles rising in the inside and outside of the center well (5), and the distribution pipe section An antifoaming mechanism (6) comprising: a spray channel (61) which is arranged in communication with the upper part of (60) and sprays a part of the liquid excreta into the center well (5). Characteristic livestock manure fermentation treatment equipment. 7. A shear wing type defoamer (7) connected to an upper end of a center well (5) connected to a ceiling surface (13) of a treatment tank (1). The livestock manure fermentation treatment apparatus according to claim 1, 2, 3, 4, 5, or 6. 8. A livestock manure fermentation treatment apparatus (A) for storing and solidifying liquid livestock manure (F) in a cylindrical vertical processing tank (1) and aerating the same. F) is raised from the liquid phase by mixing air bubbles in a chimney-shaped air lift pipe (4) standing above the liquid surface (S) on the liquid level (S), and is wrapped around the air lift pipe (4) at a predetermined interval. In the defoaming mechanism (6) for erasing bubbles generated on the liquid surface (S), the circulating water passage is configured to descend in the arranged center well (5). A distribution pipe section (60) for radially distributing and discharging a part of the formed liquid mixed manure (F) that has been raised in the air lift pipe (4) to the outside and the inside of the center well (5); A part of the liquid manure (F), which is arranged in communication with the upper part of the distribution pipe part (60), Defoaming mechanism for spraying pipe section for spraying the center well (5) in (61), characterized in that it is composed of.