KR20230138578A - Organic fertilizer production system using the manure odor removal using using ozone water - Google Patents

Abstract

The present invention relates to a technology for decomposing high-concentration organic wastewater generated from farms and converting it into resources through ozone. According to the present invention, in purifying and treating various farm wastewater including livestock manure and domestic wastewater, the primary While performing separation treatment and efficiently removing bad odors, the ozone water generated in the ozone contact tank that decomposes non-decomposable pollutants is returned to the anoxic tank so that it can be used as a carbon source for microbial decomposition, thereby maximizing denitrification efficiency. do.

Description

Farm-type high-concentration wastewater recycling and odor treatment device using ozone water {Organic fertilizer production system using the manure odor removal using using ozone water}

The present invention relates to a technology for decomposing high-concentration organic wastewater generated in farms using ozone and converting it into resources.

In general, the amount of livestock waste discharged from livestock farms such as pigs is approximately 7 million tons per year, some of which is used as natural by-product compost, but most livestock waste cannot be composted or converted into general resources, and is generated during the production of milk products and beverage products. The by-products are reduced to sediment (sludge) by coagulants such as caustic soda, and about 10 million tons of waste and sludge, including harmful substances generated from papermaking and dyeing agents such as chemical dyes, are dumped in the ocean and on land every year. It has been the main cause of soil pollution and environmental sanitation. For several years now, the government has invested a huge amount of budget to install hundreds of thousands of livestock manure storage tanks across the country to liquefy livestock manure. However, most of the livestock manure storage tanks are stored as livestock manure. The idea was to ferment the manure by adding a fermenting agent or adding microorganisms to remove the foul odor from the manure and then make liquid fertilizer or compost to turn it into a resource.

However, in the livestock waste storage tank, nitrogen (N or NOX, etc.) contained in livestock waste, odorous gases such as ammonia gas, methane gas, and all kinds of bacteria increase, polluting the surrounding environment and causing discomfort to residents, causing environmental health and sanitation pollution. Some farms are attempting to turn sludge (red mud) or EM into compost for the purpose of removing odors using microorganisms, but they are dumped in the soil without fundamentally sterilizing bacteria, creating another waste. As environmental pollution occurs, in fact, most livestock waste storage tanks are not used and are left unused in rice fields, fields, orchards, etc., remaining as ugly waste due to corrosion such as oxidation. This causes the problem of wasting hundreds of billions of won in government budget. there is.

On the other hand, with the conventional technology regarding the excrement odor removal device, Korean Patent Publication No. 10-1023649 does not have an alternative to bacterial sterilization, which is the source of the odor, and all excrement stored in the excrement storage tank is removed from the excrement circulation unit (blower). ), it generates odorous gas and removes the gas (there is no alternative to bacteria), so it costs a lot and takes a long time to remove the odor. As a result, side effects such as causing the proliferation of bacteria occur, odor removal, toxic odor, etc. There is no alternative to the harmful effects on the human body due to forced exhaust of gas and the oxidation (corrosion) of products due to the toxicity of gas. This expensive mechanical device to be installed in livestock farms cannot be used for more than one year. Entry into the market is becoming extremely difficult due to existing problems.

As another conventional technology, in Korean Patent Publication No. 10-1820228, all of these mechanical devices and filters are modularized for efficient use of the multi-filtering and bacterial removal device for adsorption of odorous gases and bacteria. ) is proposed, but the installation cost of the device itself is very expensive and there is a limit in terms of odor removal efficiency, so in terms of a method of recycling livestock waste, there is a need for an economical and efficient method of removing odor and recycling it. It's getting bigger.

Korean Patent Publication No. 10-1820228 Korean Patent Publication No. 10-1023649

The present invention was created to solve the above-mentioned problems. The purpose of the present invention is to purify and treat various farm wastewater including livestock manure and domestic wastewater, by first performing separation treatment and efficiently removing bad odors. Meanwhile, the goal is to provide a device that can maximize denitrification efficiency by returning the ozone water generated from the ozone contact tank that decomposes non-degradable pollutants to the anoxic tank so that it can be used as a carbon source for microbial decomposition.

As a means to solve the above-described problem, in an embodiment of the present invention, as shown in Figures 1 to 3, wastewater containing livestock waste is accommodated in the raw water tank 110, and the received wastewater is used as a primary A wastewater treatment module (100) that separates and treats wastewater through a separation device (A) and a secondary separation device (B) and supplies it for compost and liquid fertilizer; A composting module (200) that receives the solidified material separated through the dehydration process in the wastewater treatment module (100), mixes it with microorganisms supplied from the liquid fertilizer module (300), and composts it through a stirring process; The wastewater treatment module 100 receives the organic contaminated water formed during the dehydration process, performs liquefaction through gas supply, decomposes non-decomposable organic matter through the ozone contact tank 370, and releases the excess ozone water into an anoxic tank. A liquid fertilization module (300) returned to (310) and used as a carbon source for microbial decomposition; It includes a deodorization module 400 that absorbs and deodorizes the odor in the third aeration tank 340 and the stirred composting facility 220 of the liquefaction module 300, and the liquefaction module 300 is configured to perform the secondary separation. An anoxic tank 310 that receives contaminated water separated through the device (B) and decomposes it through anaerobic microorganisms; A first aeration tank (320), a second aeration tank (330), and a third aeration tank (340) that sequentially receives the contaminated water via the anoxic tank (310) and decomposes it through aerobic microorganisms through air supply; a first sedimentation tank (350) that receives the contaminated water that has passed through the third aeration tank (340), sediments it, and removes suspended solids; First and second treatment water tanks (360, 365) receive and receive contaminated water other than solid cargo from the settling tank (350). Contaminated water flows in through the second treatment tank (365) and comes into contact with ozone. An ozone contact tank (370) that decomposes non-decomposable organic substances; a second settling tank (380) that receives the contaminated water via the ozone contact tank (370) and deposits it; a third treatment water tank (390) that receives and stores contaminated water from the second sedimentation tank and returns ozonated water containing some ozone to the anoxic tank (310); Pump units (P3, P4) that return the solid pollen from the third aeration tank 340 and the first sedimentation tank 350 to the anoxic tank 310; It is possible to provide a farm-type high-concentration wastewater recycling and odor treatment device using ozonated water, including.

According to an embodiment of the present invention, in purifying and treating various farm wastewater including livestock manure and domestic wastewater, primary separation treatment is performed and ozone is used to efficiently remove bad odors and decompose non-degradable pollutants. The ozone water generated in the contact tank is returned to the anoxic tank so that it can be used as a carbon source for microbial decomposition, thereby maximizing denitrification efficiency.

Furthermore, by introducing microorganisms generated during the liquid fertilizer process of the present invention into the raw water tank and composting module, bad odor can be significantly reduced, and by implementing efficient composting and reducing bad odor at the same time, the filling amount of the liquid fertilizer tank is reduced. At the same time, it allows the microorganisms to be produced and operated independently, thereby realizing economic effects at the same time.

Figures 1 and 2 show a block diagram showing the configuration of a farm-type high-concentration wastewater recycling and odor treatment device using ozonated water according to an embodiment of the present invention.
FIG. 3 shows a structural plan conceptual diagram of the present invention of FIG. 2.
Figure 4 is a cross-sectional conceptual diagram showing the structure of the primary separation device (A) according to an embodiment of the present invention.
Figure 5 is a conceptual diagram of the main parts of Figure 4.
Figure 6 is a conceptual diagram of a filter unit according to an embodiment of the present invention.
Figure 7 is a conceptual diagram of a rotary separator according to an embodiment of the present invention.
Figure 8 is a conceptual diagram of a secondary separation device (B) according to an embodiment of the present invention.
Figure 9 is a conceptual diagram of an aeration tank according to an embodiment of the present invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosure will be thorough and complete and so that the spirit of the invention can be sufficiently conveyed to those skilled in the art.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Figures 1 and 2 show a block diagram showing the configuration of a farm-type high-concentration wastewater recycling and odor treatment device using ozonated water (hereinafter referred to as 'the present invention') according to an embodiment of the present invention. FIG. 3 shows a structural plan conceptual diagram of the present invention of FIG. 2.

Referring to Figures 1 to 3, the present invention accommodates wastewater (X) containing livestock waste in a raw water tank (110), and separates the received wastewater into a primary separation device (A) and a secondary separation device (B). A wastewater treatment module (100) that separates and supplies compost and liquid fertilizer through separate treatment, and solidified materials separated through a dehydration process in the wastewater treatment module (100) are introduced and received, and the liquid fertilizer module (300) A composting module 200 that mixes with supplied microorganisms and composts them through a stirring process, receives organic polluted water formed during the dehydration process in the wastewater treatment module 100, performs liquefaction through gas supply, and ozone contact tank. A liquid fertilizer module (300) that decomposes non-decomposable organic matter through (370) and returns the released excess ozone water to the anoxic tank (310) to use it as a carbon source for microbial decomposition, and a third aeration tank (340) of the liquid fertilizer module (300). and a deodorization module 400 that absorbs and deodorizes odors in the stirred fermentation facility 220.

In particular, the liquefaction module 300 described above contains an anoxic tank 310 that receives contaminated water separated through the secondary separation device (B) and decomposes it through anaerobic microorganisms, and polluted water passing through the anoxic tank 310 The first aeration tank (320), the second aeration tank (330), and the third aeration tank (340) are supplied sequentially and decomposed by aerobic microorganisms through air supply, and the contaminated water passing through the third aeration tank (340) is A first sedimentation tank 350 that receives, settles, and removes suspended matter, first and second treatment water tanks 360, 365, which receive and receive contaminated water other than solid cargo from the sedimentation tank 350, and the second treatment tank. An ozone contact tank (370) that decomposes non-decomposable organic substances by introducing contaminated water through the ozone contact tank (365) into contact with ozone, and a second sedimentation tank (380) that receives the contaminated water through the ozone contact tank (370) and deposits it. ), a third treatment water tank 390, which receives and stores contaminated water from the second sedimentation tank and returns ozonated water containing some ozone to the anoxic tank 310, the third aeration tank 340, and the first It may be configured to include pump units (P3, P4) that return the solid pollen from the settling tank (350) to the anoxic tank (310).

The wastewater treatment module 100 receives the wastewater (X) contained in the raw water tank 110, performs dehydration and deodorization, and sends the dehydrated primary contaminated water to the secondary separation device (B), A primary separation device (A) that sends the dehydrated solid pollen to the fermenter 210, and a primary separation device (A) that receives the primary contaminated water and separates it into secondary contaminated water, which is a liquid component, through centrifugation. To be configured to further include a secondary separation device (B) that separates the secondary solid pollen, flows the secondary contaminated water into the flow rate adjustment tank 120, and flows the secondary solid pollen into the fermenter 210. do.

As shown in Figures 2 and 3, the function of the wastewater treatment module 100 is to accommodate the raw water tank 110, and the wastewater contained in the raw water tank 110 is primarily separated along the pipe line. It is transferred (x1) to the device (A), and dehydration and separation of solid pollen and liquid components are performed through the primary separation device (A), and the solid pollen is transferred to the fermenter 210 of the composting module 200 and the stirred composting facility. It moves sequentially to (220) (x2) and is implemented as a compost resource.

In this case, the solid pot in the fermenter 210 and the compressed product of the microorganisms formed in the concentration tank of the present invention, which will be described later, are supplied to the fermenter 210 as solids dehydrated and caked in the secondary separation device (B) ( d2) and mixed, and through the stirring process in the agitated composting facility 220 equipped with a stirring facility, the solid pollen can be converted into resources through fermentation decomposition and odor removal. In addition, it is preferable that the microbial cake dehydrated and caked in the secondary separation device (B) is transferred (d1) to the raw water tank 110 to reduce the odor of raw wastewater.

The primary separation device (A) performs the task of separating wastewater flowing from the raw water tank 110 into solid pollen and primary contaminated water through a dehydration process.

Figure 4 is a cross-sectional conceptual diagram showing the structure of this primary separation device (A).

As shown in FIG. 4, the primary separation device (A) receives wastewater (X) containing excrement or domestic wastewater introduced from the raw water tank and removes foreign substances mixed with the wastewater (X) through agitation. Separates and finely forms the particle density to lower the viscosity to a certain extent, allowing dehydration and solid pollen separation to be performed in a colloidal state with high viscosity. This operation performs physical mixing at the screw member group inside the primary separation device (A), and at the same time, micro-vibration is applied to the colloidal wastewater from the vibration applicator that applies ultrasonic waves to remove non-decomposable material that is unnecessary for the formation of liquid fertilizer and compost. Perform work to separate and discharge foreign substances.

Specifically, referring to FIG. 4, the primary separation device (A) has a receiving space therein, and is disposed in a housing (H) that accommodates incoming wastewater (X) and the receiving space, and is disposed in the receiving space, A plurality of screw members that are implemented to rotate the screws (y1, y2) in the direction of the adjacent surface (Y) of a pair of adjacent screws to perform agitation of the wastewater (X) and at the same time implement forward and backward movement of the wastewater Groups (C1, C2, C3), vibration application parts (10A, 10B, 10C) disposed on the upper part of the housing (H) and irradiating ultrasonic waves to the surface of the excrement in the receiving space, on the upper part of the housing (H) Light irradiation parts (20A, 20B) are disposed and implement a deodorizing effect by reacting with the photocatalyst material part formed on the inner wall of the housing (H), and a discharge part (50) provided on the lower surface of the housing (H). A mooring unit 60 in which the deodorized and stirred mixed wastewater is held. It is disposed at the lower part of the mooring unit 60, so that contaminated water is moved to the lower part, solid pollen is stacked on the surface, and pollutants moored at the upper part. A filter unit (70) including a cylinder unit (60A) that presses in one direction and presses it along the surface of the filter unit, and a solid discharge unit (60B) that discharges the solid pollen remaining after being pressed to the outside, the filter unit. It may be configured to include a rotary separator 90 that receives contaminated water and fine solid pollen via (70) and separates the dehydrated and solid pollen through rotation.

In this case, as shown in FIG. 5, the plurality of screw groups (S) include at least three screw member groups (C1, C2, C3) in which a pair of screws (42, 44) are adjacent to each other. As provided above, each unit screw is implemented so that the screw rotates (y1, y2) in the direction of the adjacent surface of a pair of screws adjacent to each other, and has the function of performing agitation of manure and at the same time implementing forward and backward transfer operation. Perform.

Taking the central screw (C2) as an example, the rotation direction of the unit screw (42) on the left rotates clockwise (y1), and the unit screw (44) on the right rotates counterclockwise (y2). This will come true. That is, the pair of screws rotates in the direction of adjacent boundaries, pulverizing the manure and performing agitation. At the same time, as the screw rotates, the excrement moves back and forth inside, increasing agitation efficiency.

The arrangement and rotation structure of the unit screw of the present invention allows for continuous agitation while pulverizing excrement lumped by contaminants, thereby carrying out a physical purification process that maximizes the contact area with ultrasonic waves, which will be described later. enable it to be performed.

Wastewater discharged from farms includes livestock wastewater in addition to domestic wastewater. In the purification process, in which livestock wastewater ranging from hundreds of kg to tens of tons of livestock waste is continuously introduced, simply adding microwaves and water is not enough. The efficiency of removing pollutants is extremely low.

Like oil pollution, this is mostly a situation where other pollutants (feathers, plastics, metals, etc.) other than excrement are aggregated. Maximize the direct contact area and contact time of the microwave to separate the pollutants from moisture and solid pollutants of excrement. A method is needed to do this, and at the same time as purification, moisture and harmful volatile gases are desorbed due to the thermal desorption effect, which is a characteristic of microwaves, and it is easy to remove bad odors caused by volatile gases in advance.

Odor gases such as volatile gases are disposed on the upper part of the housing (H) and react with the photocatalyst material portion formed on the inner wall of the housing (H) by the light irradiation portions (20A, 20B) to achieve a deodorizing effect. Make it possible to implement it.

The light irradiation units 20A, 20B can be arranged by combining various light sources such as UV light source, LED light source, and infrared light source. In a preferred example of the present invention, odor gas contained within the housing is sterilized through ultraviolet sterilization. Enables deodorization and sterilization. For ultraviolet sterilization, a wavelength of 265 nm can be applied.

In particular, it is preferable to form a light coating material layer 30 on the inner wall of the housing H so that odor removal can be more efficient through reaction with the irradiated light of the light irradiation unit. This reacts with the photocatalyst material and the reflected light emitted from the light irradiation units 20A and 20B to achieve a strong deodorizing and sterilizing effect. This photocatalytic coating layer allows the filter member to be coated with either zinc oxide (ZnO), cadmium sulfide (CdS), tungsten oxide (WO ₃ ), or titanium dioxide (TiO ₂ ). In this case, ultraviolet rays are irradiated due to the lighting of the ultraviolet lamp or LED lamp, which is the light source constituting the light irradiation unit (20A, 20B) of the present invention, and the ultraviolet rays reflect or diffuse the excitation light on the inner wall of the housing or the surface of the excrement. It reacts with the photocatalyst coating layer and generates hydroxyl radicals. In this case, the hydroxyl radicals achieve a deodorizing effect on odorous substances generated internally through agitation of excrement and at the same time implement a sterilizing effect.

In the case of this deodorizing and sterilizing _action , ultraviolet rays are irradiated on _the photocatalyst layer (for example, TiO ₂ layer) and ozone (O ₂ ) and hydroxyl radicals (hydroxyl radicals, OH radicals, By generating hydroxy radicals, the hydroxyl radicals achieve excellent sterilization and odor removal effects.

The excrement mixture, which has been stirred and odor-removed through the light irradiation units (20A, 20B), screw, and ultrasonic vibration, is discharged to the mooring unit 60 disposed at the bottom through the discharge unit 50 operated by the operation of the opening/closing valve. It moves, and a mixture of liquid and solid components is held in the holding portion 60 for a certain period of time.

At the lower part of the mooring part 60, a filter part 70 having the structure shown in FIG. 6 is disposed, and the filter part 70 is a plate having a plurality of through holes 72 and a spacer member 74. With a shaped structure (P), solids of a certain size are filtered and contaminated water is passed through the bottom. In this case, a certain amount of solid content remains in the upper part of the filter unit 70, and this residual solid content crosses the mooring unit from one side to the other through the cylinder unit 60A disposed on one side of the mooring tube 60, The remaining solids are pushed toward the pressurizing part (60B), and through this operation, the contaminated water in the remaining solids is dehydrated once again and moves to the bottom. Thereafter, the pressurized portion 60B is opened and closed to discharge the pressurized solid content to the outside, and the discharged solid content is transferred to the fermenter 210 described above in FIG. 3 .

Contaminated water (hereinafter referred to as primary contaminated water) that has passed through the filter unit 60 is input into the rotating separator 90 disposed at the bottom and undergoes a dehydration process once again. Although this is not shown, when the primary contaminated water moving to the lower part of the filter unit 60 is collected and flows into the inlet 98 of the rotary separator 90 of FIG. 7, there is a transfer screw (not shown) inside. It rotates through a cylindrical rotating part 92 provided with and undergoes a dehydration process at high speed. In this case, contaminated water (hereinafter referred to as 'primary contaminated water') is dehydrated and released through the plurality of through holes 91, and this primary contaminated water is transferred to the primary treatment water tank 120 described above in FIG. 3. The solid content (first solid container) inside the cylindrical rotating part 92 is transferred through the operation of the transfer screw and discharged through the discharge hole 93a. The first solid pollen discharged in this way is connected to a transfer pipe through the transfer hole 96a and is transferred to the fermenter 210 in FIG. 3.

The primary contaminated water transferred to the primary treatment water tank 120 flows into the secondary separation device (B) and undergoes a high-speed centrifugation process to once again separate it into solid pollen and contaminated water.

Figure 7 is a conceptual diagram showing the configuration of this secondary separation device (B).

The secondary separation device (B) separates solid pollen and contaminated water according to the operation of the control lever (R) that receives primary contaminated water (Wa) and flows it into the centrifuge and the high-speed rotating screw (S) inside the centrifuge. The contaminated water is separated into light-liquid contaminated water (w1), medium-liquid contaminated water (w2), and solid pollen (w3) according to its specific gravity and discharged to the outside. This centrifugal rotation is implemented by the rotation of the drive motor (m) and the movement of the chain (C). This secondary separation device (B) can perform separation by applying various commercially available devices in addition to those shown in FIG. 7.

Hereinafter, light and heavy liquid contaminated water (hereinafter referred to as 'secondary contaminated water') passing through the secondary separation device (B) flows into the flow rate adjustment tank 120, and the process of liquefying or purifying this secondary contaminated water is performed. It will be performed. In addition, as shown in FIGS. 2 and 3, the secondary separation device (B) receives the liquid material containing microorganisms stored in the concentration tank 395 of the present invention (g1) and forms a microbial cake through high-speed dehydration. It is formed and transported to the raw water tank 110 and the composting facility 220 of the composting module to reduce odor.

Hereinafter, the operation sequence of the present invention will be described with reference to FIGS. 2 and 3. (In FIG. 3, the symbol 'M' denotes a motor, and 'P' denotes a pump driven by a motor.)

Referring to FIGS. 2 and 3, when wastewater (X) such as domestic wastewater or livestock manure from farms flows into the raw water tank (110), the pump (P1) operates by driving the motor (M), Transfer wastewater (x1) to the primary separation device (A). The transported wastewater is separated into liquid and solids through the primary separation device (A) of the present invention described above in Figure 4, and at the same time, the bad odor can be primarily removed through treatment to reduce bad odor. The solids separated in the primary separation device (A) are transferred (x2) to the fermentor 210 or the composting facility 220, and the contaminated water (primary contaminated water) is transferred to the adjacent secondary separation device (B). It goes through dehydration and separation processes once again. In this case, the solids remaining after dehydrating the primary contaminated water are transferred (d2) to the composting facility (220), and the treated contaminated water (secondary contaminated water) is moved to the flow rate adjustment tank (120). In addition, the secondary separation device (B) of the present invention dehydrates the liquid material containing microorganisms transferred from the concentration tank 395, which will be described later, to form microbial solid pollen, and the microbial solid pollen formed in this way is placed in the raw water tank. It can be transferred to (110) (d1), or transferred to the composting facility (d2) or closed fermenter (210) and mixed with solid pollen to remove odor.

Thereafter, the secondary contaminated water moved (d3) to the flow storage tank 120 is moved to the anoxic tank 310 through the operation of the motor (M) and pump (P2). In the anoxic tank 310, denitrification reaction and organic matter decomposition are mainly performed, and anaerobic microorganisms are allowed to perform the decomposition process by adding photosynthetic bacteria, recycled water, and EMBC malt.

Livestock wastewater generated from farms has a low C/N ratio, so complete denitrification is impossible as is. In order to achieve complete denitrification, organic carbon sources such as methanol must be continuously supplied from the outside, and heat energy must be supplied from the outside for anaerobic fermentation at medium temperature. There is a problem of continuous supply. In the present invention, in order to supply such a carbon source, the ozone water flowing into the third treatment tank 390 of the present invention is returned to the anoxic tank 310 (0.5 to 1 Q return: return rate of 50% to 100%), and this ozone water is returned to the anoxic tank 310. can be used as a carbon source in an anoxic tank to increase denitrification efficiency.

Next, the secondary contaminated water that has gone through the decomposition process in the anoxic tank 310 moves sequentially (b2-->b3-->b4) to the three adjacent aeration tanks (320, 330, 340). These three aeration tanks include an aeration device that supplies oxygen to the contaminated water containing a large amount of organic components, and these aeration devices supply air to the secondary contaminated water containing organic components, thereby preventing microorganisms from the excrement. This can be cultured.

Elements contained in secondary polluted water include carbon (C), nitrogen (N), and phosphorus (P). Among them, carbon (C) has the lowest content, which may prevent microbial reactions from occurring smoothly. . Therefore, if the C/N ratio (carbon/nitrogen ratio) is adjusted to an appropriate ratio by supplementing the carbon (C) that is lacking in the secondary contaminated water, microbial reactions can occur smoothly. 50% of the liquid fertilizer content is carbon ( C) By supplying the microalgae to the four aeration tanks of the present invention, microbial reactions can occur smoothly. The microalgae include blue-green algae Micricystis, green algae Chlorella sp., and Euglena gracilis.

Three aeration tanks containing such aeration devices are arranged in sequence to sequentially allow cultivation and decomposition of microorganisms, and the contaminated water passing through the third aeration tank 340 goes through the decomposition process of microorganisms and becomes a high-concentration liquid fertilizer. will be converted. This high-concentration liquid fertilizer can be taken out and moved to a livestock barn or pig barn (Y1, Y2) and used to remove bad odors from the pig barn or pig barn.

Secondary contaminated water passing through the third aeration tank 340 undergoes a sedimentation process through the adjacent first sedimentation tank 350. In this case, the solid pollen remaining in the third aeration tank 340 is moved to the anoxic tank through the pump P3, and the solid pollen remaining in the sedimentation tank 350 is also moved to the anoxic tank through the pump P4 (e2, e3). The solidified substances that move in this way are introduced into the anoxic tank so that they can be used as a carbon source.

The secondary contaminated water that has gone through the sedimentation process in the first sedimentation tank 350 moves to the first treatment tank 360 and the second treatment tank 365 (b6, b7). The floating material floating in the first treatment tank (360) is moved to the pressure flotation tank (367) and then later transferred to the enrichment tank (395) (h1), and the remaining contaminated water is transferred to the second treatment tank (365). moves to .

Thereafter, the secondary contaminated water received in the second treatment water tank 365 moves to the adjacent ozone contact tank 370. In the ozone contact tank 370, ozone is supplied through the ozone generator 420, which forms ozone using the oxygen generator 410, and ozone comes into contact with secondary polluted water to decompose non-decomposable substances into decomposable organic substances. so that it can be oxidized.

The secondary contaminated water that has passed through the ozone contact tank (370) undergoes a sedimentation process again in the adjacent sedimentation tank (380) and is then transferred to the third treatment tank (390). As described above, the secondary contaminated water and excess ozone water flowing into the third treatment tank 390 are returned to the anoxic tank 310 through the pump P7 and used as an organic carbon source. At the same time, the secondary polluted water is in a high purification state and can be discharged (h2) or reused as washing water, etc.

In addition, the enrichment tank 395 receives some ozone water from the ozone contact tank 370 (g2) to contact and decompose the suspended substances or solids stored in the enrichment tank, and simultaneously transfers the decomposed solids to the transfer pump (P9). ), it is preferable to transfer it to an anoxic tank (g1) so that it can be used as an organic carbon source to increase denitrification efficiency.

In addition, in the present invention, as shown in FIG. 3, communication parts (a1, a2, a3, a4) are formed to communicate the raw water tank 110 and the three aeration tanks 320, 330, and 340 with each other, The odor gas generated during aeration is circulated in a mutually communicating structure and delivered to the external deodorization module 400 for efficient removal.

The structure of this aeration tank, as shown in Figure 9, is implemented in the form of a rectangular parallelepiped or cube in which the entire concrete material is sealed, and is arranged adjacent to each other, with liquid fertilizer adjacent to each other on one side of each adjacent portion. The communication parts (a1, a2, a3, a4,) that communicate with the tank are formed.

As described above, the technical idea of the present invention has been described in detail in the preferred embodiments, but the preferred embodiments described above are for explanation and not limitation. As such, a person skilled in the art will understand that various embodiments are possible through combination of embodiments of the present invention within the scope of the technical idea of the present invention.

100: Wastewater treatment module
200: Composting module
300: Liquefaction module
400: Deodorization module

Claims (3)

Wastewater treatment in which wastewater containing livestock manure is stored in the raw water tank (110), the received manure is separated and treated through a primary separator (A) and a secondary separator (B), and supplied separately for compost and liquid fertilizer. module 100;
A composting module (200) that receives the solidified material separated through the dehydration process in the wastewater treatment module (100), mixes it with microorganisms supplied from the liquid fertilizer module (300), and composts it through a stirring process;
The wastewater treatment module 100 receives the organic contaminated water formed during the dehydration process, performs liquefaction through gas supply, decomposes non-decomposable organic matter through the ozone contact tank 370, and releases the excess ozone water into an anoxic tank. A liquid fertilization module (300) returned to (310) and used as a carbon source for microbial decomposition;
It includes a deodorization module 400 that absorbs and deodorizes odors in the third aeration tank 340 of the liquefaction module 300 and the agitated composting facility 220,
The liquefaction module 300 is,
An anoxic tank (310) that receives the contaminated water separated through the secondary separation device (B) and decomposes it through anaerobic microorganisms;
A first aeration tank (320), a second aeration tank (330), and a third aeration tank (340) that sequentially receives the contaminated water via the anoxic tank (310) and decomposes it through aerobic microorganisms through air supply;
a first sedimentation tank (350) that receives the contaminated water that has passed through the third aeration tank (340), sediments it, and removes suspended solids;
First and second treatment water tanks (360, 365) for receiving and receiving contaminated water other than solid cargo from the settling tank (350).
an ozone contact tank (370) that introduces contaminated water via the second treatment tank (365) into contact with ozone to decompose non-decomposable organic substances;
a second settling tank (380) that receives the contaminated water via the ozone contact tank (370) and deposits it;
a third treatment water tank (390) that receives and stores contaminated water from the second sedimentation tank and returns ozonated water containing some ozone to the anoxic tank (310);
Pump units (P3, P4) that return the solid pollen from the third aeration tank 340 and the first sedimentation tank 350 to the anoxic tank 310; Including,
Farm-type high-concentration wastewater recycling and odor treatment device using ozonated water.
In claim 1,
The primary separation device (A) is,
A housing (H) having a receiving space inside and accommodating incoming excrement;
It is disposed in the receiving space, and the screw is implemented to rotate (y1, y2) in the direction of the adjacent surface (Y) of a pair of screws adjacent to each other, thereby performing agitation of the fertilizer and simultaneously implementing a forward and backward movement of the excrement. A group of multiple screw members (C1, C2, C3) to do so;
Vibration applying units (10A, 10B, 10C) disposed on the upper part of the housing (H) and irradiating ultrasonic waves to the surface of the excrement in the receiving space;
Light irradiation parts (20A, 20B) disposed on the upper part of the housing (H) and implementing a deodorizing effect by reacting with the photocatalyst material part formed on the inner wall of the housing (H);
A mooring portion (60) in which deodorized and stirred mixed excrement is moored through a discharge portion (50) provided on the lower surface of the housing (H);
A cylinder unit disposed at the lower part of the mooring unit 60, moves the contaminated water to the lower part, stacks the solid pollen on the surface, and presses the pollutant moored at the upper part in one direction to press it along the surface of the filter unit ( 60A) and,
A filter unit 70 including a solid discharge unit 60B that discharges the solid pollen remaining after being pressurized to the outside;
A second retention unit (80) for secondary retention of excrement that has passed through the filter unit (70);
A rotary separator (90) disposed at the lower part of the second mooring unit (80), which receives contaminated water and fine solid pollen via the filter unit (70) and dehydrates and separates the solid pollen through rotation;
Including a rotary separator (90),
Farm-type high-concentration wastewater recycling and odor treatment device using ozonated water.
In claim 2,
The secondary separation device (B),
Contaminated water flows in through the primary separator (A), and rotates the internal high-speed rotating screw (S) to separate secondary contaminated water and secondary solids consisting of light liquid contaminated water and heavy liquid contaminated water according to specific gravity. Apply a centrifugal separation device to separate flower pots,
The secondary contaminated water is transferred to the flow adjustment tank 120, and the second solid pollen is transferred to the mixing tank 210,
The solid pot containing the microorganisms concentrated in the concentration tank 395 is transferred and formed into a third solid pot, and the third solid pot containing the microorganisms is supplied to the raw water tank 110 and the mixing tank 210. This reduces odor,
Farm-type high-concentration wastewater recycling and odor treatment device using ozonated water.

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