Organic liquid waste treatment system

Abstract

To provide a system for processing liquid wastes containing organic substances that can dry a large amount of the liquid wastes containing the organic substances naturally, resulting in a low running cost and a reduced capital investment.SOLUTION: There is provided a system for processing liquid wastes containing organic substances including: a closed container 21 in which a fermentation raw material is stored in a storage unit 21d, with the storage unit 21d depressurized and heated; a fermentation device 2 that has a stirring device 22 and decomposes an organic component of the fermentation raw materials using microorganisms; a processing area 3 in which a processing target plants P are arranged; a transfer unit 10 that transfers a fermentation product S discharged from the fermentation device 2 after the fermentation raw material is fermented, to the processing area 3; and a discharge unit 51 that discharges the fermented product S from the transfer unit 10. The discharge unit 51 is configured to discharge the fermented product S toward the processing target plants P from a position above the processing target plants P arranged in the processing area 3.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an efficient treatment system for organic-containing liquid waste, for example the wet waste of livestock such as dairy cows. [Background technology]

[0002] The present inventors have invented a reduced-pressure fermentation and drying apparatus that stores livestock excrement in a sealed container such as a tank, reduces the pressure inside the sealed container, and heats and stirs the excrement within a specified temperature range, thereby efficiently removing moisture and drying the excrement stored in the sealed container, and also adds specified microorganisms to the livestock excrement being treated in this manner to promote fermentation of the excrement, as described in Patent Document 1, for example. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-65979 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned conventional excrement treatment system, it is difficult to dry a large amount of excrement containing a lot of moisture. In addition, there is a risk that the running costs will be high if the dryer is used for a long period of time. Furthermore, in the system described in the above-mentioned Patent Document 1, many reduced pressure fermentation and drying devices are required to treat a large amount of excrement, and there is a risk that the capital investment will be high.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and an object of the present invention is to provide a system for treating liquid waste containing organic matter, which can naturally ferment and dry a large amount of liquid waste containing organic matter, has low running costs, and can reduce capital investment. [Means for solving the problem]

[0006] In order to solve the above problems, the inventions disclosed in this specification are configured as follows: That is, the first invention is characterized in that it comprises a fermentation apparatus including a sealed container having a storage section for storing fermentation raw material, which is a liquid waste containing organic matter, a storage section decompression section for decompressing the storage section, a storage section heating section for heating the storage section, and a stirring device having a stirring member for stirring the fermentation raw material in the storage section, which uses microorganisms to decompose organic components of the fermentation raw material and generate and discharge a fermentation product from the fermentation raw material, a treatment area in which a target plant for treatment to be used as bedding is placed, a transfer section for transferring the fermentation product discharged from the fermentation apparatus to the treatment area, and a release section for releasing the fermentation product from the transfer section, and the release section is configured to release the fermentation product from a position above the target plant placed in the treatment area toward the target plant.

[0007] According to the first invention, by fermenting liquid waste containing organic matter in a fermentation apparatus, a fermentation product containing many microorganisms useful for efficiently fermenting and drying plants to be treated can be produced. Then, by releasing the fermentation product from a position above a large number of plants to be treated arranged in a treatment area, the fermentation product can be permeated throughout the plants to be treated while passing from above to below the plants to be treated due to the action of gravity. This makes it possible to provide a treatment system that can ferment and dry a large amount of liquid waste containing organic matter, has low running costs, and minimizes capital investment.

[0008] In the second invention, in the first invention, the treatment area includes a collection bed in which the target plant is placed, and the collection bed collects the filtrate of the fermentation product that falls downward from the target plant after passing through the target plant, and stores it in a storage tank.

[0009] According to the second aspect of the present invention, the liquid portion of the fermentation product is subjected to the treatment of Plants to be treatedThe fermented product falls downward from the collection bed. This allows the collection bed to promote drying of the plant to be treated. Also, while the plant to be treated is passing the fermented product from above downward, the solid parts present in the fermented product can be caught and left inside the plant to be treated. The filtrate obtained by filtering the fermented product is then collected by the collection bed toward the storage tank. This allows the filtrate to be stored in the storage tank. The filtrate stored in the storage tank can be made to flow again from above downward through the plant to be fermented, dried, and eliminated.

[0010] In a third aspect of the present invention, the collection bed has a first polygonal inclined plane portion and a second polygonal inclined plane portion, and the first polygonal inclined plane portion has a shared side portion shared with the second polygonal inclined plane portion. The shared side portion is inclined with respect to a horizontal plane, and one end portion of the shared side portion is formed to be a lowest portion of the collection bed, and the storage tank is disposed near the lowest portion.

[0011] According to the third invention, when the plant to be treated is placed anywhere on the collection bed, the filtrate that passes from above to below the plant to be treated is temporarily collected at the common side between the first polygonal inclined plane portion and the second polygonal inclined plane portion. The filtrate collected at the common side can then be smoothly guided to the lowest part of the collection bed and stored in the storage tank. This promotes drying of the plant to be treated even when the plant to be treated is placed at any position on the collection bed. This increases the degree of freedom in the placement of the plant to be treated within the treatment area. In addition, the filtrate stored in the storage tank can be fermented, dried, and eliminated by flowing it again from above to below the plant to be treated.

[0012] The fourth invention is characterized in that, in the second or third invention, a repeat spray flow path is provided for spraying the filtrate stored in the storage tank from a spray nozzle positioned above the plant to be treated toward the plant to be treated, and a liquid delivery pump is provided in a middle portion of the repeat spray flow path for transporting the filtrate from the storage tank to the spray nozzle.

[0013] According to the fourth invention, the filtrate can be repeatedly passed from above to below the plant to be treated, so that more of the microorganisms contained in the filtrate can be attached to the plant to be treated, and the fermentation and drying rates of the plant to be treated can be increased. Effect of the Invention

[0014] According to the system for treating organic-containing liquid waste of the present invention, it is possible to naturally treat a large amount of organic-containing liquid waste. fermentation Since the present invention can provide a system for treating liquid waste containing organic matter, the running costs are low and capital investment can be reduced. [Brief description of the drawings]

[0015] [Figure 1] 1 is a schematic plan view showing an overall image of a treatment system for organic-containing liquid waste according to one embodiment of the present invention. [Diagram 2] 1 is an overall configuration diagram of a treatment system for organic-containing liquid waste according to an embodiment of the present invention. [Diagram 3] 1 is a diagram showing a schematic overall configuration of a fermentation apparatus provided in a treatment system for organic-containing liquid waste according to the present embodiment; [Figure 4] FIG. 2 is an explanatory diagram showing a state after a target plant has been treated in the treatment system for organic-containing liquid waste according to the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0017] FIG. 1 is a schematic plan view showing an overall image of a treatment system 1 for organic-containing liquid waste according to this embodiment. FIG. 2 is an overall configuration diagram of the treatment system 1 for organic-containing liquid waste according to this embodiment. FIG. 3 is a diagram showing a schematic overall configuration of a fermentation device 2 provided in the treatment system 1 for organic-containing liquid waste according to this embodiment. FIG. 4 is an explanatory diagram showing a state after a treatment target plant P has been treated in the treatment system 1 for organic-containing liquid waste according to this embodiment. In FIGS. 1 to 3, the treatment system 1 for organic-containing liquid waste according to this embodiment includes a fermentation device 2, a treatment area 3, a boiler 4, a cooling tower 5, a fermentation raw material input hopper 6, a liquid fermentation raw material input tank 7, a transfer section 10, and a release section 51.

[0018] The fermentation raw material input hopper 6 is a place where a manure mixture or organic sludge from livestock such as dairy cows is temporarily stored as a fermentation raw material. The manure mixture is input into the fermentation raw material input hopper 6, for example, by a dump truck T that has brought the manure mixture from a livestock barn. The target livestock include, but are not limited to, dairy cows, pigs, sheep, chickens, etc. The fermentation raw material input hopper 6 has a crushing screw 6a. The crushing screw 6a crushes large lumps of the input manure mixture into smaller pieces.

[0019] The fermentation raw material input hopper 6 and the fermenter 2 are connected by a first input side conveyor 11, a second input side conveyor 12, a third input side conveyor 13 and a fourth input side conveyor . The first input-side conveyor 11, the second input-side conveyor 12, the third input-side conveyor 13, and the fourth input-side conveyor 14 are part of the transfer section 10. The slurry-like fermentation raw material is supplied from the fermentation raw material input hopper 6 to the fermentation device 2 by these multiple input-side conveyors. Each input-side conveyor transports the fermentation raw material linearly in a plan view. The input-side conveyors are combined so that their longitudinal directions are perpendicular to each other in the order of closest to the fermentation raw material input hopper 6: the first input-side conveyor 11, the second input-side conveyor 12, the third input-side conveyor 13, and the fourth input-side conveyor 14.

[0020] The liquid fermentation raw material input tank 7 is, for example, dairy cow Among the manure mixtures of livestock such as these, urine with a particularly low solid content is temporarily stored as a liquid fermentation raw material. The liquid fermentation raw material input tank 7 and the fermenter 2 are connected by a liquid fermentation raw material delivery pipe 9. A raw material delivery pump 8 is provided in the middle of the liquid fermentation raw material delivery pipe 9. By operating the raw material delivery pump 8, the liquid fermentation raw material is supplied from the liquid fermentation raw material input tank 7 to the fermenter 2.

[0021] The fermentation apparatus 2 is an apparatus that uses microorganisms to decompose organic components of the fermentation raw material. As shown in FIG.

[0022] The sealed container 21 is constructed using, for example, a substantially cylindrical pressure-resistant tank. The sealed container 21 accommodates the fermentation raw material, which is a mixture of livestock manure or organic sludge, in the accommodation section 21d. In the accommodation section 21d of the sealed container 21, pressure is reduced by a storage section pressure reduction section described later, and heating is performed by a storage section heating section described later. The sealed container 21 is formed airtight so as to maintain the accommodation section 21d at atmospheric pressure or lower. A heating jacket 24 is provided on the peripheral wall of the sealed container 21. The heating jacket 24 is connected to the boiler 4 by a heating steam supply passage not shown. Heating steam generated in the boiler 4 is supplied to the heating jacket 24. The accommodation section heating section is constructed by the heating jacket 24 and the boiler 4.

[0023] A fermentation raw material inlet 21a is provided at the top of the sealed container 21. This fermentation raw material inlet 21a is connected to the fourth inlet conveyor 14. The fermentation raw material sent from the fermentation raw material inlet hopper 6 or the liquid fermentation raw material inlet tank 7 is input into the fermentation raw material inlet 21a. A guide section 21c is provided protrudingly at the top of the sealed container 21. This guide section 21c is provided at one end side and the other end side in the longitudinal direction of the sealed container 21. The guide section 21c guides steam generated from the heated fermentation raw material to the condensation section 23. A fermentation product outlet 21b is provided at the bottom of the rear wall of the sealed container 21 for discharging the fermentation product S after the fermentation raw material is fermented.

[0024] The agitator 22 has an agitator shaft 22a, an agitator plate 22b, and an electric motor 22c. The agitator shaft 22a extends in the longitudinal direction of the sealed container 21 in the storage section 21d of the sealed container 21. A plurality of agitator plates 22b as agitating members are provided on the agitator shaft 22a at intervals in the axial direction of the agitator shaft 22a. The electric motor 22c rotates the agitator shaft 22a at a predetermined rotation speed.

[0025] When the fermentation raw material is charged from the fermentation raw material inlet 21a, the fermentation raw material is heated by the heat of the heating steam supplied to the heating jacket 24 while being stirred by the rotational drive of the stirring shaft 22a and the stirring plate 22b. The fermentation raw material is also sent in the longitudinal direction of the sealed container 21 toward the fermentation product outlet 21b while being heated and stirred.

[0026] Microorganisms are added to the fermentation raw material in the sealed container 21. The microorganisms to be added are preferably a complex group of effective microorganisms that are based on multiple types of indigenous bacteria and have been previously cultured, and are commonly known as SHIMOSE 1 / 2 / 3 groups, which form the center of the colony. SHIMOSE 1 is FERM BP-7504 (internationally deposited on March 14, 2003 at the Patent Microorganism Deposit Center, National Institute of Advanced Industrial Science and Technology, Ministry of Economy, Trade and Industry (1-1-3 Higashi, Tsukuba City, Ibaraki Prefecture, Japan)). SHIMOSE 2 is FERM BP-7505 (internationally deposited like SHIMOSE 1), and is a salt-tolerant microorganism belonging to the genus Pichiafarinosa. SHIMOSE 3 is FERM BP-7506 (internationally deposited like SHIMOSE 1), and is a microorganism belonging to the genus Staphylococcus.

[0027] The condensation section 23 is connected to the guide section 21c of the sealed container 21 by a connection pipe 26. The condensation section 23 includes a plurality of cooling pipes 23b supported by a pair of heads 23a. The cooling water in the cooling pipes 23b is heated to a high temperature by heat exchange with steam that has entered the condensation section 23 from the guide section 21c. The heated cooling water in the cooling pipes 23b is cooled in the cooling tower 5. A cooling water passage 5a is provided between the cooling pipes 23b and the cooling tower 5.

[0028] The cooling tower 5 has a water tank 5b, a pumping pump 5c, a nozzle 5d, a flow portion 5e, and a fan 5f. The cooling water discharged from the condenser 23 flows into the water tank 5b. The pumping pump 5c pumps up the cooling water from the water tank 5b. The nozzle 5d sprays the pumped up cooling water toward the flow portion 5e. The fan 5f blows air toward the flow portion 5e while the cooling water flows down through the flow portion 5e. The temperature of the cooling water is reduced by the air blown from the fan 5f. After flowing down through the flow portion 5e, the cooling water flows back into the water tank 5b.

[0029] The cooling water cooled in the cooling tower 5 is pumped by the cooling water pump 5g and returned to the condenser 23 through the cooling water passage 5a. The cooling water returned to the condenser 23 flows through the multiple cooling pipes 23b. To, The temperature of the cooling water increases as a result of heat exchange with the steam from the fermentation raw materials. The cooled water passes through the cooling water passage 5a and flows back into the cooling tower 5. In other words, the cooling water circulates through the cooling water passage 5a provided between the condenser 23 and the cooling tower 5.

[0030] Steam generated from the heated fermentation raw material is condensed in the condensation section 23. In the cooling tower 5, in addition to the cooling water circulating as described above, condensed water condensed in the condensation section 23 is also poured. To be more specific, the condensation section 23 is connected to a communication passage 28. The condensed water generated in the condensation section 23 stays inside the condensation section 23 and the communication passage 28. The communication passage 28 is connected to a vacuum pump 25. This vacuum pump 25 functions as the above-mentioned storage section decompression section that decompresses the storage section 21d of the sealed container 21. For this reason, the vacuum pump 25 operates to suck air and condensed water from the condensation section 23 through the communication passage 28. The vacuum pump 25 also guides the air and steam in the storage section 21d to the condensation section 23 through the guide section 21c and the connection pipe 26. The condensed water sucked out from the condensation section 23 by the vacuum pump 25 is guided to the water tank 5b of the cooling tower 5 by a water guide pipe not shown.

[0031] The condensed water guided to the water tank 5b of the cooling tower 5 is mixed with the cooling water and cooled. The condensed water contains the same microorganisms as those added to the fermentation raw material in the storage section 21d, so odorous components and the like contained in the condensed water are decomposed by the microorganisms. Therefore, the odor contained in the condensed water does not emanate outside the sealed container 21.

[0032] The fermentation apparatus 2 is configured as described above. The fermentation raw material fed from the fermentation raw material feed port 21a of the sealed container 21 is heated by the heating jacket 24 heated by the heating steam from the boiler 4. The storage section 21d of the sealed container 21 is depressurized by driving the vacuum pump 25, and the boiling point of water is lowered by the effect of the depressurization. As a result, the storage section 21d is maintained at 50 to 60°C, and the water contained in the fermentation raw material is boiled. The fermentation of the fermentation raw material is promoted by stirring with the stirring plate 22b of the stirring device 22.

[0033] As shown in FIG. 2, the fermentation product S obtained after the fermentation raw material is fermented is spread on a target plant P such as straw and sawdust, and the target plant P is fermented, dried, and used as bedding. The fermentation product S is in a slurry state containing a large amount of microorganisms. Compared to the state of the fermentation raw material, the fermentation product S can promote the fermentation of straw, sawdust, and the like. Examples of the target plant P include, but are not limited to, straw and sawdust. The target plant P is placed in a treatment area 3.

[0034] As shown in FIG. 1, the processing area 3 is a rectangular area in plan view. The processing area 3 is provided next to the equipment area E, which is substantially square in plan view and in which the fermentation apparatus 2, the boiler 4, the cooling tower 5, the fermentation raw material input hopper 6, etc. are provided. The processing area 3 is in contact with the equipment area E on one short side of the rectangle in plan view. The processing area 3 has a collection bed portion 31, which is rectangular in plan view. The collection bed portion 31 has a first polygonal inclined plane portion 32 and a second polygonal inclined plane portion 33. These polygonal inclined plane portions 32, 33 are both polygonal planes inclined with respect to the horizontal plane. In this embodiment, the first polygonal inclined plane portion 32 and the second polygonal inclined plane portion 33 are each a triangular plane. The first polygonal inclined plane portion 32 and the second polygonal inclined plane portion 33 are not limited to a triangular shape, but may be a polygon having four or more sides. The first polygonal inclined flat portion 32 has a shared side portion 31a shared with the second polygonal inclined flat portion 33. This shared side portion 31a is inclined with respect to the horizontal plane.

[0035] The shared side 31a is formed on the diagonal of the collecting bed 31, which is rectangular in plan view. The shared side 31a is formed so that one end closer to the equipment area E is the lowest part of the collecting bed 31, and the other end farther from the equipment area E is the highest part of the collecting bed 31. The first polygonal inclined plane portion 32 and the second polygonal inclined plane portion 33 each have a shape that slopes downward toward the shared side 31a. The highest part of the collecting bed 31 is formed around the collecting bed 31, and is at the same height as the floor of the equipment area E.

[0036] A discharge-side final conveyor 17, which is linear in plan view, is disposed in the collection bed 31. The discharge-side final conveyor 17 is disposed parallel to the long side of the collection bed 31, which is rectangular in plan view. The discharge-side final conveyor 17 enters the processing area 3 from the equipment area E and extends to near the end of the processing area 3 opposite the equipment area E. The discharge-side final conveyor 17 is disposed at a predetermined height from the collection bed 31 by a plurality of pillars (not shown). The discharge-side final conveyor 17 and the fermentation device 2 in the equipment area E are connected by a discharge-side first conveyor 15, which is linear in plan view, and a discharge-side second conveyor 16, which is linear in plan view. The discharge-side first conveyor 15, the discharge-side second conveyor 16, and the discharge-side final conveyor 17 are part of the transfer section 10. The first discharge conveyor 15, the second discharge conveyor 16 and the final discharge conveyor 17 transport the fermentation product S discharged from the fermentation apparatus 2 after the fermentation raw material has been fermented to the processing area 3.

[0037] As shown in Figures 1 and 2, a plurality of (four in this embodiment) discharge sections 51 are attached to the discharge final conveyor 17 at predetermined intervals. The discharge sections 51 are formed, for example, from a flexible hose. The discharge sections 51 are provided so as to hang downward from the discharge final conveyor 17. The discharge sections 51 discharge the fermentation product S from the discharge final conveyor 17. In the collection bed section 31 of the treatment area 3, the plant to be treated P is placed along the discharge final conveyor 17. The fermentation product S is released toward the plant to be treated P from a position above the plant to be treated P placed in the collection bed section 31.

[0038] A storage tank 41 is disposed near the lowest part of the collection bed 31. The collection bed 31 collects the filtrate L of the fermentation product S that has passed through the plant P to be treated and then dropped downward from the plant P to be treated, and stores the filtrate L in the storage tank 41.

[0039] The organic-containing liquid waste treatment system 1 according to this embodiment includes a repeat spray flow path 35. The repeat spray flow path 35 is provided to repeatedly spray the filtrate L stored in the storage tank 41 from an upper position of the plant P to be treated toward the plant P to be treated. Specifically, the repeat spray flow path 35 includes a first pipe 36 extending along the boundary between the equipment area E and the treatment area 3, and a second pipe 37, a third pipe 38, and a fourth pipe 39 branched from the first pipe 36. The second pipe 37, the third pipe 38, and the fourth pipe 39 are each arranged parallel to the long side of the collection bed 31, which is rectangular in plan view, and at a predetermined height from the collection bed 31. In addition, the second pipe 37, the third pipe 38, and the fourth pipe 39 each extend to near the end of the treatment area 3 opposite the equipment area E. Further, the second pipe 37, the third pipe 38 and the fourth pipe 39 are each provided with a plurality of spray nozzles 35a at predetermined intervals.

[0040] A liquid delivery pump 42 for delivering the filtrate L from the storage tank 41 to the spray nozzle 35a is provided in the middle of the repeat spray flow path 35. The filtrate L stored in the storage tank 41 is repeatedly sprayed toward the treatment target plant P from the spray nozzle 35a located above the treatment target plant P.

[0041] In the processing area 3 of this embodiment, there are arranged one discharge side final conveyor 17, and three pipes, a second pipe 37, a third pipe 38, and a fourth pipe 39, which are branched from a first pipe 36. In the processing area 3, the plants to be treated P are arranged in a line along each of the discharge side final conveyor 17, the second pipe 37, the third pipe 38, and the fourth pipe 39. The arrangement of the plants to be treated P is performed using a wheel loader H.

[0042] When a new plant P to be treated enters the treatment area 3, the wheel loader H first arranges the new plant P to be treated along the discharge-side final conveyor 17. Then, the wheel loader H releases the slurry-like fermentation product S toward the plant P to be treated from an upper position of the plant P to be treated. After the fermentation product S is sufficiently permeated into the plant P to be treated, the wheel loader H rearranges the plant P to be treated so that it is along one of the second pipe 37, the third pipe 38, and the fourth pipe 39. Then, the filtrate L of the fermentation product S is repeatedly sprayed onto the plant P to be treated from the spray nozzle 35a at the upper position. The time for repeatedly spraying the filtrate L of the fermentation product S onto the plant P to be treated is set to a predetermined first time. After the predetermined time has elapsed, a drying time of a predetermined second time is provided. Furthermore, the first time for spraying the filtrate L onto the plant P to be treated and the second time for drying the plant P to be treated are repeatedly and alternately performed. This repeated process allows the plant P to be fermented efficiently. Ultimately, as shown in FIG. 4, the treated plant P changes from its hard state before treatment to a soft, fine, high-quality litter B.

[0043] The embodiments disclosed herein are illustrative in all respects and are not intended to be limiting. The technical scope of the present invention is not interpreted solely by the above-described embodiments, but is defined by the claims. The technical scope of the present invention includes all modifications within the scope and meaning equivalent to the claims. [Explanation of symbols]

[0044] 1. Organic liquid waste treatment system 2 Fermentation equipment 3 Processing Area 10 Transfer section 21 Airtight containers 21d Storage section 22 Stirring device 22b Stirring plate (stirring member) 31 Collection Floor 31a Common edge 32 First polygonal inclined plane portion 33 Second polygonal inclined plane portion 35 Repeat spray channel 35a Spray nozzle 41 Reservoir 42 Liquid delivery pump 51 Emission part L filtrate S Fermentation products P treated plants

Claims

1. a fermentation device including a sealed container having a storage section for storing organic-containing liquid waste, a storage section decompression section for decompressing the storage section, a storage section heating section for heating the storage section, and a stirring device having a stirring member for stirring the organic-containing liquid waste in the storage section, the fermentation device utilizing microorganisms to decompose the organic-containing liquid waste and discharge a fermentation product produced from the organic-containing liquid waste; a treatment area in which plants to be treated for bedding are placed; A transfer section that transfers the fermentation product discharged from the fermentation apparatus to the processing area; A discharge section that discharges the fermentation product from the transfer section; Equipped with The release unit is configured to release the fermentation product from a position above the treatment target plant arranged in the treatment area toward the treatment target plant, The treatment area includes a collection bed for placing the plants to be treated, The collection bed is configured to collect the filtrate of the fermentation product that has passed through the plant to be treated and then dropped downward from the plant to be treated, and store the filtrate in a storage tank; Further, a repeat spray flow path is provided for spraying the filtrate stored in the storage tank from a spray nozzle located above the treatment target plant toward the treatment target plant, A liquid delivery pump for delivering the filtrate from the storage tank to the spray nozzle is provided in the middle of the repeat spray flow path, The discharging unit discharges the fermentation product toward a new plant to be treated that has been placed in the treatment area; The spray nozzle sprays the filtrate onto the treatment target plant after the fermentation product has been sufficiently permeated into the treatment target plant, The spraying of the filtrate onto the treatment target plant and the drying of the treatment target plant are repeatedly and alternately performed. A system for treating liquid waste containing organic matter.

2. the collection bed has a first polygonal inclined planar portion and a second polygonal inclined planar portion; the first polygonal inclined flat portion has a shared side portion shared with the second polygonal inclined flat portion, The common side portion is inclined with respect to a horizontal plane, and one end portion of the common side portion is formed to be the lowest portion of the collection floor portion, The reservoir is disposed adjacent to the lowest portion.

2. The system for treating liquid waste containing organic matter according to claim 1.

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