KR101173850B1 - Solid-liquid separating type livestock wastewater treatment apparatus - Google Patents

Abstract

PURPOSE: A solid-liquid separating type livestock wastewater treating apparatus is provided to prevent the pollution of rivers by separating livestock wastewater and sterilizing separated urine effluent before discharging. CONSTITUTION: A solid-liquid separating type livestock wastewater treating apparatus includes a notch type mixing tank(2), a mixed water discharging pipe(71), a solid-liquid separator(4), a solid part collecting bath(5), a primary oxidizing bath(6a), a secondary oxidizing bath(6b), a microorganism filtering bath(6c), and a sterilizing bath(7). An underwater pump is installed in a livestock wastewater collecting tank. Wastewater pumped by the underwater pump and water mixed with a coagulating agent in a coagulating agent mixing tank are simultaneously introduced into the notch type mixing tank. The mixed water discharging pipe discharges the mixed water of the wastewater and the water with the coagulating agent. The solid-liquid separator separates the mixed water into solid parts and urine effluent. The primary oxidizing bath oxidizes the urine effluent. The secondary oxidizing bath stores the primarily oxidized urine effluent to be secondarily oxidized. The microorganism filtering bath filters microorganisms from the secondarily oxidized effluent.

Description

Solid-liquid separating type livestock wastewater treatment apparatus

The present invention relates to a solid-liquid separation livestock wastewater treatment apparatus, and more specifically, to efficiently and easily treat livestock wastewater by separating and treating solids (min, dung) and water (urine, urine) from the livestock wastewater. It relates to a livestock wastewater treatment apparatus.

In general, livestock wastewater is classified into solids (min, dung) and water (urine, urine). The solids can be used as organic fertilizers, so they are easy to treat, but moisture has many odors and water pollution. There is this.

Therefore, in the conventional livestock wastewater treatment method, it is recommended that the livestock waste and urine are separately collected and then composted, while the urine is treated by the advanced treatment such as drug treatment and microbial treatment and discharged.

However, the conventional livestock wastewater treatment method needs not only a facility for separating the livestock waste and urine, but also requires the installation of an expensive purification facility. In a small livestock farm, it is only expensive to install an expensive purification facility. In addition, it is expensive to manage expensive purification facilities, so there is a problem that it is economically burdened to discharge livestock waste without purification, and the rivers in farming and fishing villages are contaminated due to such problems. Not only are the odors severe, they cause significant disruption to farming and further contaminate groundwater.

The present invention has been proposed in order to solve the above-mentioned conventional problems, and the installation cost is low so that the economical burden can be installed in small livestock farms, by separating the solids (min) in the livestock wastewater mixed with manure The urine wastewater, which is treated as compost, is invented for the purpose of allowing wastewater to be treated without being contaminated with the stream through oxidation and disinfection treatment.

The present invention as a means for pursuing the above object,

In the livestock wastewater treatment apparatus is configured to separate and separate the minutes and solid urine wastewater from livestock wastewater,

A notched mixing tank into which wastewater pumped by an underwater pump installed while being immersed in wastewater stored in a livestock wastewater collection tank and water stored in a state in which a coagulant is mixed in a coagulant mixing tank flow in simultaneously;

A mixed water drain pipe configured to drain the mixed water of the waste water and the water stored in the mixed water drain tank of the notched mixing tank;

In order to separate the urine wastewater of solids and water from the mixed water drained through the mixed water drainage pipe, the solids are moved to the upper side and discharged through the upper outlet, and the urine wastewater, which is moisture, is stored in the lower portion and lowered through the lower discharge tube. A solid-liquid separator for discharging;

A solids collection tank for collecting the solids discharged to the upper outlet of the solid-liquid separator;

A primary oxidation treatment tank for storing the urine wastewater, which is the water discharged through the lower outlet of the solid-liquid separator, and oxidizing it primarily;

A secondary oxidation treatment tank for storing the urine waste water, which is water that has been primarily oxidized, in the primary oxidation treatment tank and oxidizing it in a secondary manner;

A microbial filtration tank having a crushed stone filter layer for filtering the microorganisms present in the urine wastewater, which is the secondary oxidation treatment water in the secondary oxidation treatment tank;

A disinfection treatment tank disinfecting the treated water drained through the drainage path formed in the upper part of the microbial filtration tank and discharged through the drain pipe;

Characterized in that the configuration.

In addition, the notch type mixing tank communicates with the mixed water inflow tank through which the wastewater pumped from the livestock wastewater collection tank and water with the coagulant mixed evenly in the coagulant mixing tank flow in simultaneously, and the lower passage of the first partition wall. And a first guide tank configured to communicate with the first guide tank through an upper passage of the second partition wall, and a mixed water drainage tank communicating with the second guide tank through a lower passage of the third partition wall. It is done.

In addition, the solid-liquid separator is an inner cylinder that is connected to the lower side of the mixed water discharge pipe for discharging the mixed water of the waste water and water stored in the mixed water drainage channel of the notch-type mixing tank, the outer cylinder is formed in a state surrounding the inner cylinder, The urine wastewater, which is water in the mixed water flowing into the lower portion of the inner tube through the mixed water discharge pipe, is rotatably installed therein, and is transported upward by the solids conveying screw and the solids conveying screw is filtered. And an upper outlet formed on one side of the upper portion of the outer cylinder to discharge the powdered solid to the outside.

In addition, the solid-liquid separator has an annular duct covering the outside of the plurality of air suction holes formed at regular intervals in the circumferential direction in the middle portion with respect to the upper and lower portions of the outer cylinder, and the upper and lower portions of the inner cylinder. A lower perforated part having a plurality of through holes formed in a cylindrical shape from a middle part to a lower part based on a reference; an air inlet pipe connected to an upper side of an inner cylinder so that external air can be introduced into the inner cylinder; And an air intake fan connected to the duct and configured to forcibly suck air existing in the outer and inner cylinders, and an air intake fan having an air discharge pipe for discharging the air sucked from the air intake pipe. .

In addition, the solids collection tank is formed with a perforated filter plate that receives a number of solids discharged through the upper outlet of the solid-liquid separator and the through hole for filtering the urine wastewater which is water discharged with the solids at the same time, the perforated filter plate, It is characterized in that the urine discharge pipe for discharging the urine wastewater which is the water filtered by the primary oxidation treatment tank is connected.

In addition, the bottom of each of the primary and secondary oxidation treatment tank is characterized in that the aeration pipes are respectively connected to the air discharge pipe in order to aeration the air discharged to the air discharge pipe of the air suction fan.

According to the present invention, in treating livestock waste water, the solid matter and the urine waste water are separated and the solid matter is effective to be recycled as an organic fertilizer, and the urine waste water as water is disinfected to prevent contamination of the stream and discharged. In particular, the livestock wastewater treatment apparatus of the present invention has an advantage that it can be installed economically without burden even in small livestock farms because the structure is relatively simple.

1 is a schematic configuration diagram of a livestock wastewater treatment apparatus for explaining the present invention
Figure 2 is an enlarged view of a portion of the solids feed screw installed in the solid-liquid separator of the present invention

Specific embodiments of the solid-liquid separation livestock wastewater treatment apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a schematic diagram showing the overall configuration of the livestock wastewater treatment apparatus of the present invention, the wastewater collected in the livestock wastewater collection tank (1) built on the ground pumped to the desired treatment site using the water pump (11), etc. Supply.

Industrial water is stored in the coagulant mixing tank (2), and a predetermined amount of coagulant is introduced into the industrial water stored in the coagulant mixing tank (2), and the coagulant mixing tank (2) is stirred to rotate by a rotational power of a motor. Since the blades 21 are installed, the flocculant introduced into the industrial water is evenly stirred and pumped by the metering pump 22 and supplied to the desired place.

The notched mixing tank 3 is introduced into the wastewater and water pumped by the submersible pump 11 and the water pump 22 which are respectively installed in the livestock wastewater collection tank 1 and the flocculant mixing tank 2. An inflow tank 31, first and second guide tanks 32, 33 and a mixed water drainage tank 34 are formed, and the inflow tank 31 and the first guide tank 32 are partitioned. A lower passage 38a is formed below the first partition 35, and an upper passage is above the second partition 36 partitioning the first guide 32 and the second guide 33. 38b is formed, and a lower passage 38c is formed below the third partition wall 37 that divides the second guide tank 33 and the mixed water drainage tank 34.

Therefore, the inflow tank 31 of the notch-type mixing tank 3 is mixed with the waste water and the water at the same time, so that the flocculation action of the solids mixed in the waste water by the flocculant mixed in the water is well achieved. do.

In addition, the wastewater and the water which are simultaneously introduced into the inflow tank 31 of the notched mixing tank 3 and mixed are introduced into the first guide tank 32 through the lower passage 38a of the first partition wall 35. At this time, when the wastewater and the water introduced into the inflow tank 31 flow into the first guide tank 32 through the lower passage 38a, vortex phenomena appear, so that the mixing action of the wastewater and the water is performed well, and thus the water The flocculant mixed in the mixture accelerates the flocculation action of the solids mixed in the wastewater.

In addition, the wastewater and the water introduced into the first guide tank 32 are introduced into the second guide tank 33 while causing vortex while passing through the upper passage 38b of the second partition 36. Since the vortex phenomenon appears even when the second guide tank 33 flows into the mixed water drainage tank 34 through the lower passage 38c formed below the third partition wall 37, the mixed water drainage tank 34 has Waste water and water are well mixed.

Since the upper portion 39a of the mixed water discharge pipe 39 is located under the mixed water surface of the waste water and the water stored in the mixed water drainage tank 34, the mixed water near the water surface of the mixed water drainage tank 34 is Through the upper inlet end (39a) of the mixed water discharge pipe 39 is to be introduced into the lower side of the inner cylinder (4a) of the solid-liquid separator (4) to which the lower discharge end (39b) is connected.

The solid-liquid separator 4 has an inner cylinder 4a and an outer cylinder 4b having a double tube structure, and the inner cylinder 4a has a solids conveying screw 43 spirally wound around the rotating shaft 42 of the motor 41. ) Is rotatably installed, and furthermore, through the upper portion and the lower portion of the inner cylinder 4a, the through hole is directly above the lower portion to which the lower portion 39b of the mixed water discharge pipe 39 is connected. It is formed of a myriad of lower perforations 44, and a plurality of air suction holes 45 are formed at a predetermined interval toward the circumferential direction when viewed from the top and the bottom of the outer cylinder 4b. .

In addition, the outside of the plurality of air suction hole 45 is sealed by an annular duct 46 to cover the outer surface of the outer cylinder (4b) in an annular shape, the solid conveying screw 43 on the upper side of the outer cylinder (4b) The upper discharge port 47 for discharging the powder that is conveyed upward by the) is formed, the upper side of the inner cylinder (4a) is formed with an air inlet pipe 48 for introducing the outside air .

The solid discharged to the upper outlet 47 of the solid-liquid separator 4 is discharged to the solids collection tank 5, the perforated filter plate 51 is formed in the upper part of the solids collection tank 5 through the through hole The waste discharged to the solid discharge port 47 is received, and the urine wastewater which is the water discharged together with the solids collected by the perforated filter plate 51 is stored below the perforated filter plate 51, the solids collection The urine wastewater, which is water stored in the tank 5, is discharged through the urine discharge pipe 52, and the urine wastewater, which is moisture stored in the outer cylinder 4b of the solid-liquid separator 4, is discharged to the lower discharge pipe 49, The urine wastewater discharged into the urine discharge pipe 52 and the lower discharge pipe 49 is simultaneously discharged to the primary oxidation treatment tank 6a.

On the other hand, the solids conveying screw 43 has a plurality of through-holes (43a) are formed in the bottom portion formed in a spiral shape as shown in Figure 2 in order to filter the urine waste water and to convey the solids upwards, At the end of the spiral, a loosening jaw 43b is formed to prevent the solid, which is not loosened by centrifugal force.

One side of the primary oxidation treatment tank 6a has a structure in which a secondary oxidation treatment tank 6b and a microbial filtration tank 6c are connected in series, and the primary and secondary oxidation treatment tanks 6a and 6b are formed. And first and second partition walls 61 and 62 are formed between the secondary oxidation treatment tank 6b and the microbial filtration tank 6c, respectively. An upper connecting passage 63 for connecting the second oxidation treatment tanks 6a and 6b is formed, and the second oxidation treatment tank 6b and the microorganism filtration tank 6c are formed below the second partition wall 62. The lower connecting passage 64 is formed to connect the.

In addition, each of the primary and secondary oxidation treatment tanks 6a and 6b is provided with a plurality of microbial contact agents 65 and 66 at regular intervals, and the microbial filtration tank 6c has a crushed stone filter layer as a gravel layer. A 67 is formed, and a drainage passage 68 is formed on one side of the microbial filtration tank 6c to flow the treated water passing through the crushed stone filter layer 67 into the disinfection treatment tank 7.

The disinfectant treatment tank 7 stores the treated water drained through the drainage passage 68 of the microbial filtration tank 6c, and is supplied from the disinfectant mixing tank 8 which is stored in a state in which an appropriate ratio of the disinfectant is mixed in the industrial water. The disinfectant mixed water to be stored is stored, the disinfectant mixing tank 7 has a suitable ratio of the disinfectant mixed water supplied from the disinfectant mixing tank 8 and the treated water drained through the drainage passage 68 of the microbial filtration tank 6c. In this way, the disinfected water mixed and stored in the proper ratio in the disinfection tank 7 is purified so as not to contaminate the stream, so that it is discharged through the drain pipe 71 connected to the disinfection tank 7. Even if you do not pollute the river.

On the other hand, the air suction pipe 91 of the air suction fan 9 is connected to the annular duct 46 formed to seal the plurality of air suction holes 45 formed at a predetermined interval in the outer cylinder 4b of the solid-liquid separator 4. The width pipes 93 and 94 respectively connected to the air discharge pipe 92 of the air suction fan 9 are piped to the bottom of each of the primary and secondary oxidation treatment tanks 6a and 6b. .

Therefore, when the air suction fan 9 is operated, the air suction pipe 91 sucks the internal air of the annular duct 46, and thus air existing in the space between the outer cylinder 4b and the inner cylinder 4a. Is sucked into the annular duct 46 through the plurality of air suction holes 45, and air present in the space portion between the inner cylinder 4a and the outer cylinder 4b is sucked into the annular duct 46. At this time, since the air present in the inner cylinder 4a is sucked into the outer cylinder 4b through the lower perforation 44, the inside of the inner cylinder 4a becomes a depressurized state where the air pressure drops, so that the outside air is the air inlet pipe 48 Into the inner cylinder (4a) is introduced into, through the air inlet pipe 48 as described above, the air flowing into the inner cylinder (4a) flows from the upper side to the lower side through the solid transfer screw 43 Drops of urine wastewater, which is water on the transferred solids, Is to work.

In addition, the air aerated at the bottom of each of the primary and secondary oxidation treatment tanks 6a and 6b through the width pipes 93 and 94 connected to the air discharge pipe 92 of the air suction fan 9 is primary. And supplying oxygen to the secondary oxidation treatment tanks 6a and 6b to promote the action of bringing the microorganisms into contact with the plurality of microbial contactors 65 and 66.

And the solid sludge introduced into the dropping sludge discharge pipe 12 through the drain pipe formed at the bottom of the primary, secondary oxidation treatment tank (6a) (6b) and microbial filtration tank (6c) livestock wastewater collection tank (1) Re-introduced into the notch-type mixing tank (3) by the submersible pump (11) is to repeat the filtration process again.

The present invention configured as described above allows the industrial livestock wastewater stored in the livestock wastewater collecting tank 1 and the industrial water mixed with the coagulant to be mixed at an appropriate ratio and supplied to the inflow tank 31 of the notch type mixing tank 3. By making the waste water and the water well mixed, the flocculation efficiency of the solids mixed in the waste water by the flocculant can be improved, and the waste water and the water stored in the mixed water drainage tank 34 of the notched mixing tank 3 The mixed water flows into the lower portion of the inner cylinder 4a of the solid-liquid separator 4 through the mixed water discharge pipe 39, and the mixed water of the wastewater and the water introduced into the inner cylinder 4a is upwardly along the solids transfer screw 43. While the solids conveying screw 43 has a plurality of through holes 43 are formed in the bottom of the spiral as shown in FIG. 2, the urine wastewater, which is water, is drained through a plurality of through holes 43a formed in the bottom of the spiral. If you are solid Since it is conveyed upward along the solid conveying screw 43, and also the loosening prevention jaw 43b protruding spirally upward at the spiral end of the solid conveying screw 43 prevents the solids from being loosened by centrifugal force. The solid matter is not caught in the through hole forming the lower perforated portion 44 of the inner barrel 4a. Accordingly, the lower perforated portion 44 facilitates the discharge of urine wastewater, which is water, while the air flows well. To do that.

Therefore, the air suction fan 9 is operated to suck air existing in the circular duct 46 covering the plurality of air suction holes 45 formed in the outer cylinder 4b through the air suction pipe 91 to seal. When the air present in the space portion between the inner cylinder 4a and the outer cylinder 4b is sucked into the annular duct 46 through the plurality of air suction holes 45, and the air existing inside the inner cylinder 4a. Is sucked into the space between the inner cylinder (4a) and the outer cylinder (4b) through the lower perforations (44), and thus the inside of the inner cylinder (4a) is a pressure-reduced state, so the air inlet pipe inside the inner cylinder (4a) The outside air is introduced through the 48, and the outside air introduced through the air inlet pipe 48 flows upward through the inside of the inner cylinder 4a and flows downward, thereby being transferred upward through the solids transfer screw 43. If the solid is to be brought into contact with the air flowing into the inner cylinder 4a, And a status, so that a portion of the urine effluent water that has accumulated in the solid-minute will be dropped to the bottom are relaxed in a solid by contacting the air time.

On the other hand, the solids conveyed upward along the solids transfer screw 43 is accumulated in the perforated filter plate 51 of the solids collection tank 5 through the upper outlet 47, the perforated filter plate 51 The urine wastewater, which is water buried in the solid sludge (min), is stored in the solids collection tank 5 through a through hole formed in the perforated filter plate 51.

The urine wastewater stored in the inner and outer cylinders 4a and 4b of the solid-liquid separator 4 and the urine wastewater stored in the solids collection tank 5 are provided through the lower discharge pipe 49 and the urine discharge pipe 52. It is discharged and stored in the primary oxidation treatment tank 6a, which is present in the primary oxidation treatment tank 6a through air aerated through the exhaust pipe 93 disposed at the bottom of the primary oxidation treatment tank 6a. Since oxygen is supplied to the microorganisms, the microorganisms present in the primary oxidation treatment tank 6a are multiplied by contacting the plurality of microbial contact agents 6a, and thus, the purified water purified primarily in the primary oxidation treatment tank 6a. Is stored, and the primary purified water stored in the secondary oxidation treatment tank 6b receives oxygen from the air aerated in the aeration pipe 94, so that the plurality of microbial contacts 66 contact and multiply the microorganisms. Is actively progressed so that the secondary storage stored in the secondary oxidation treatment tank 6b The purified water is to be stored.

In addition, the secondary purified water introduced into the microbial filtration tank 6c after being secondarily purified by the secondary oxidation treatment tank 6b is adsorbed into the crushed stone in the course of passing through the crushed stone filter layer 67. While the treated microorganisms are relatively clean, the treated water is stored and discharged and stored in the disinfection tank 7 through the drainage passage 68, and the treated water supplied through the drainage passage 68 of the microbial filtration tank 6c. The disinfectant mixing water supplied from the disinfectant mixing tank 8 is supplied and stored in the disinfection treatment tank 7 at a preset ratio, and the treated water supplied and stored in the disinfection treatment tank 7 is discharged to the stream. Even if it is, it is disinfected enough to not pollute the river.

Therefore, the disinfected water stored in the disinfection treatment tank 7 can be discharged to a river or the like through the drain pipe 71.

Meanwhile, the microorganisms dropped from the primary and secondary oxidation treatment tanks 6a and 6b and the microbial filtration tank 6c were stored in the livestock wastewater collecting tank 1 through the de-sludge discharge pipe 12 and then livestock wastewater. The reprocessing process will be repeated together, and the solids separated from the solids in the solids collection tank 5 can be recycled as organic fertilizers.

1: livestock wastewater collection tank 11: submersible pump
12: dropping sludge discharge line 2: flocculant mixing tank
21: stirring blade 22: metering pump
3: notch mixing tank 31: inflow tank
32, 33: 1st, 2nd guide tank 34: Mixed water drain tank
35,36,37: 1st, 2nd, 3rd bulkhead 38a, 38c: Lower passage
38b: upper passage 39: mixed water discharge pipe
39a: upper inlet 39b: lower outlet
4: solid-liquid separator 4a, 4b: inner cylinder and outer cylinder
41: motor 42: rotating shaft
43: solids transfer screw 44: lower perforation
45: air suction hole 46: annular duct
47: upper outlet 48: air inlet pipe
49: lower discharge pipe 5: solids collection tank
51: perforated filter plate 52: urine discharge tube
6a, 6b: primary and secondary oxidation treatment tanks 6c: microbial filtration tanks
61,62: first and second partition walls 63,64: upper and lower connecting passages
65,66: microbial contact agent 67: crushed filter layer
68: drainage 7: disinfection tank
71: drainage pipe 8: disinfectant mixing tank
9: air suction fan 93,94: width pipe

Claims (6)

In the livestock wastewater treatment apparatus is configured to separate and separate the minutes and solid urine wastewater from livestock wastewater,
A notched mixing tank into which wastewater pumped by an underwater pump installed while being immersed in wastewater stored in a livestock wastewater collection tank and water stored in a state in which a coagulant is mixed in a coagulant mixing tank flow in simultaneously;
A mixed water drain pipe configured to drain the mixed water of the waste water and the water stored in the mixed water drain tank of the notched mixing tank;
In order to separate the urine wastewater of solids and water from the mixed water drained through the mixed water drainage pipe, the solids are moved to the upper side and discharged through the upper outlet, and the urine wastewater, which is moisture, is stored in the lower portion and lowered through the lower discharge tube. A solid-liquid separator for discharging;
A solids collection tank for collecting the solids discharged to the upper outlet of the solid-liquid separator;
A primary oxidation treatment tank for storing the urine wastewater, which is the water discharged through the lower outlet of the solid-liquid separator, and oxidizing it primarily;
A secondary oxidation treatment tank for storing the urine waste water, which is water that has been primarily oxidized, in the primary oxidation treatment tank and oxidizing it in a secondary manner;
A microbial filtration tank having a crushed stone filter layer for filtering the microorganisms present in the urine wastewater, which is the secondary oxidation treatment water in the secondary oxidation treatment tank;
A disinfection treatment tank disinfecting the treated water drained through the drainage path formed in the upper part of the microbial filtration tank and discharged through the drain pipe;
Solid-liquid separation livestock wastewater treatment apparatus characterized in that the configuration.
The method of claim 1,
The notched mixing tank may be configured to communicate with the mixed water inflow tank through a mixed water inflow tank through which wastewater pumped from the livestock wastewater collection tank and water with a coagulant mixed evenly in the coagulant mixing tank, and a lower passage of the first partition wall. And a first guide tank, a second guide tank communicating with the first guide tank through the upper passage of the second partition wall, and a mixed water drainage tank communicating with the second guide tank through the lower passage of the third partition wall. Solid-liquid separation livestock wastewater treatment device.
The method of claim 1,
The solid-liquid separator is an inner cylinder which is connected to the lower side of the mixed water discharge pipe for discharging the mixed water of the waste water and the water stored in the mixed water drainage path of the notch-type mixing tank, the outer cylinder formed to surround the inner cylinder, and the inside of the inner cylinder The urine wastewater, which is water in the mixed water flowing into the lower portion of the inner tube through the mixed water discharge pipe, is rotatably installed, and is transported upward by the solids conveying screw, while the solids conveying screw is filtered upwardly. Solid-liquid separation livestock wastewater treatment apparatus characterized in that it has an upper outlet formed on the upper side of the outer cylinder to discharge the solids to the outside.
The method according to claim 1 or 3,
The solid-liquid separator has an annular duct covering the outside of the plurality of air suction holes formed at a predetermined interval in the circumferential direction in the middle portion based on the upper and lower sides of the outer cylinder, and the upper and lower sides of the inner cylinder. And a lower perforation part in which a plurality of through holes are formed in a cylindrical shape from a middle part to a lower part, and an air inlet pipe connected to an upper side of the inner cylinder so that external air can flow into the inner cylinder, and the annular duct. A solid-state liquid connected to an air suction pipe which is connected to the air suction pipe which is formed to forcibly suck air existing in the outer cylinder and the inner cylinder, and an air discharge pipe for discharging the air sucked from the air suction pipe is formed. Separate Livestock Wastewater Treatment System.
The method of claim 1,
The solids collection tank is formed with a perforated filter plate that receives a solid discharged through the upper outlet of the solid-liquid separator and at the same time a through hole for filtering urine wastewater, which is water discharged together with the solids, and filtered by the perforated filter plate. Solid-liquid separation type livestock wastewater treatment apparatus, characterized in that the urine discharge pipe for discharging the urine wastewater that is water to the primary oxidation treatment tank is connected.
The method of claim 1,
Solid-liquid separation livestock wastewater treatment, characterized in that the bottom of each of the primary and secondary oxidation treatment tank is provided with aeration pipes respectively connected to the air discharge pipe to aeration the air discharged into the air discharge pipe of the air suction fan. Device.

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