A system for treating livestock and poultry wastewater

Abstract

The present invention discloses a livestock and poultry wastewater treatment system, comprising: an integrated pool, an anaerobic treatment pool, an aeration pool and an installation room are provided on the upper surface of the integrated pool, a communication port is provided on the upper surface of the anaerobic treatment pool, the communication port can be sealed and covered by a preliminary filtering mechanism, the preliminary filtering mechanism is slidably installed on the upper surface of the anaerobic treatment pool, a sludge treatment mechanism is slidably installed in the anaerobic treatment pool, a scraping mechanism is fixedly installed on the upper surface of the aeration pool, the scraping mechanism can scrape the scum generated in the aeration pool into a sewage channel and enter a storage box, and an air supply mechanism is fixedly installed in the aeration pool. The present application integrates anaerobic and aerobic treatment together through the design of an aeration pool, an anaerobic treatment pool and a scraping mechanism, and the device can save space, reduce construction and operation costs, and can scrape out filtered solid matter, such as feces, feed residues, feathers, etc. for centralized collection.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to a livestock and poultry wastewater treatment system. Background Art

[0002] Livestock and poultry breeding wastewater is wastewater containing high concentrations of organic matter and nutrients, and its direct discharge causes serious water pollution. However, the pollution control level of livestock and poultry breeding industry is generally low. According to statistics, 90% of large-scale livestock and poultry farms in the country do not meet environmental protection requirements for pollutant treatment, which not only leads to eutrophication of water bodies, but also restricts the development of livestock and poultry breeding industry.

[0003] For example, the patent with the national authorized patent announcement number CN203582653U discloses a livestock and poultry breeding wastewater treatment system, which belongs to the field of wastewater treatment. It includes an ABR tank, an aerobic biological filter and a denitrification tank. The ABR tank and the aerobic biological filter are connected by a sewage pipe. An atomizing nozzle is provided at one end of the sewage pipe extending into the aerobic biological filter, and a lifting pump is provided on the sewage pipe; the aerobic biological filter sends the effluent to the denitrification tank through a pipe. The denitrification tank is provided with filter material, and an aeration device is provided under the filter material. The bottom of the denitrification tank is provided with a water outlet. The system improves the denitrification rate, embodies the concept of "waste treatment with waste", saves costs, and is easy to operate.

[0004] However, the ABR tank, aerobic biological filter and denitrification tank in the above-mentioned livestock and poultry wastewater treatment system are all designed separately and connected through pipes, which increases the overall complexity of the system, and the operation process is not coherent and the integration is low. In addition, during the anaerobic and aerobic treatment process, the filtered solid matter, such as feces, feed residues, feathers, etc., cannot be scraped out for centralized collection and will be deposited at the bottom of the pool, resulting in the space in the pool being occupied, affecting the uniform distribution of water flow and the treatment effect, and the accumulated solid matter will also cause equipment blockage, affecting the normal operation of the system. Summary of the invention

[0005] The object of the present invention is to provide a livestock and poultry wastewater treatment system to solve the problem that the ABR tank, aerobic biological filter and denitrification tank in the system proposed in the above background technology are all designed separately and connected by pipelines, which leads to increased overall complexity of the system, discontinuous operation process, low integration, and in the anaerobic and aerobic treatment process, the filtered solid matter, such as feces, feed residues, feathers, etc., cannot be scraped out for centralized collection.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A livestock and poultry wastewater treatment system, comprising: an integrated pool, an anaerobic treatment pool, an aeration pool and an installation room are provided on the upper surface of the integrated pool, a communication port is provided on the upper surface of the anaerobic treatment pool, the communication port can be sealed and covered by a preliminary filtering mechanism, the preliminary filtering mechanism is slidably installed on the upper surface of the anaerobic treatment pool, a sludge treatment mechanism is slidably installed in the anaerobic treatment pool, the sludge treatment mechanism can push the sludge to push the discharge end of the sludge treatment mechanism to open and enter the guide plate, a drainage channel can be formed between the guide plate and the discharge end of the sludge treatment mechanism, the drainage channel can be used for the sludge treatment mechanism to push the sludge generated in the anaerobic treatment pool into the drainage channel and slide into a storage box, the storage box is fixedly installed on the lower surface of the integrated pool;

[0008] Wherein, a scraping mechanism is fixedly installed on the upper surface of the aeration tank, and the scraping mechanism can scrape the scum generated in the aeration tank into the sewage channel and into the storage box. An air supply mechanism is fixedly installed in the aeration tank, and the air supply mechanism can transport air and oxygen into the aeration tank;

[0009] Wherein, a fine suspended matter filtering mechanism is fixedly installed in the installation room, and the fine suspended matter filtering mechanism can draw the treated wastewater in the aeration tank into the fine suspended matter filtering mechanism.

[0010] Preferably, a first water pump is fixedly installed at one end of the integrated pool, a water inlet of the first water pump is connected to the anaerobic treatment pool, and a discharge outlet of the first water pump is connected to the aeration pool.

[0011] Preferably, the preliminary filtration mechanism includes a sealing slide, which is slidably mounted on the upper surface of the anaerobic treatment tank, a funnel tube is fixedly mounted on the upper surface of the sealing slide, a sieve plate is fixedly mounted in the outlet of the funnel tube, and the sieve plate can be connected with the connecting port through the sliding of the sealing slide, so that the wastewater can pass through the sieve plate in the funnel tube to separate solid matter and liquid in the wastewater for pre-treatment, and the solid matter includes livestock and poultry manure, feed residues, feathers, etc.

[0012] Preferably, connecting arms are fixedly installed on both sides of the funnel tube, and the connecting arms are fixedly installed on one end of the piston rod of the electric push rod, and the electric push rod is fixedly installed on both sides of the integrated pool. The electric push rod can drive the sealing slide to seal and cover the upper surface of the connecting port by pushing the piston rod through a full stroke, so that a sealed oxygen-free environment is formed in the anaerobic treatment tank. This oxygen-free environment can provide microorganisms to decompose organic matter into biogas and carbon dioxide. The generated biogas can be recycled as energy, thereby achieving the purpose of anaerobic treatment.

[0013] Preferably, the sludge treatment mechanism comprises a first motor, which is fixedly mounted at one end of the integrated tank, the output shaft of the first motor is sealed and penetrates into the anaerobic treatment tank and is fixedly mounted with a threaded rod, a scraper plate is threadedly driven on the outer surface of the threaded rod, the scraper plate is slidably mounted on the lower surface of the anaerobic treatment tank, a top contact plate is fixedly mounted on the upper surface of the scraper plate, the top contact plate can push the sealing cover to flip and unfold, a rotating column is fixedly mounted on the upper surface of the sealing cover, the rotating column can be sealed and penetrated from the anaerobic treatment tank and is rotatably mounted in a sealing cylinder, and the sealing cylinder is fixedly mounted on both sides of the integrated tank;

[0014] Wherein, a torsion spring is fixedly installed on the outer surface of the rotating column, and the outer end of the torsion spring is fixedly connected in the sealing cylinder, so that the sealing cylinder can be twisted and contacted with one end of the anaerobic treatment tank to achieve a sealed closure state;

[0015] Wherein, a connecting plate is fixedly installed in the anaerobic treatment tank, and a semi-ring disk is fixedly installed on the lower surface of the connecting plate. The semi-ring disk is sealed and attached to the outer surface of the rotating column, so that the connecting plate is in a rotating sealing shape through the rotating connection between the semi-ring disk and the sealing cylinder. The connecting plate can seal the anaerobic treatment tank through the twisting closure of the sealing cylinder;

[0016] The connection between the connecting plate and the sealing cover can form a sewage channel with the guide plate. When the sealing cover closes and seals the anaerobic treatment tank, the scum in the aeration tank can be pushed into it. When the sealing cover is propped open by the top contact plate, the sludge formed in the anaerobic treatment tank can be pushed into the sewage channel and flow into the storage box.

[0017] Preferably, the air supply mechanism includes an air pump, the air outlet of the air pump is connected to a ball valve tube, the other end of the ball valve tube is connected to an aeration tank, one end of the ball valve tube located in the aeration tank is connected to an aeration pipe, and the aeration pipe is located in the aeration tank.

[0018] Preferably, the aeration pipe can compress the air and introduce bubbles into the aeration tank. The oxygen in the bubbles dissolves in the water, increasing the dissolved oxygen content in the water. Aerobic microorganisms use the oxygen dissolved in the water to decompose organic pollutants in the wastewater, thereby achieving the purpose of aerobic treatment. Under the condition of sufficient oxygen, the microorganisms can further decompose the remaining organic matter in the wastewater to produce water and carbon dioxide. This step can significantly reduce the organic pollutants in the water.

[0019] Preferably, the scraping mechanism includes two groups of docking plates, the two groups of docking plates are fixedly installed on the upper surface of the aeration tank, a transmission column is rotatably installed between the two groups of docking plates, a second motor is fixedly installed at one end of the docking plate, the output shaft of the second motor passes through the docking plate and is fixedly connected to the transmission column, and a transmission belt is sleeved on the outer surface of the two groups of transmission columns, and a scraping plate is fixedly installed between the transmission belts, and the scraping plate can scrape the scum rising in the wastewater in the aeration tank into the sewage discharge channel formed between the guide plate and the discharge end of the sludge treatment mechanism.

[0020] Preferably, the fine suspended matter filtering mechanism includes a second water pump, which is fixedly installed at one end of the integrated pool, the water suction port of the second water pump is connected to the aeration tank, the discharge port of the second water pump passes through the installation room and is connected to an ultrafiltration membrane installed, and the ultrafiltration membrane is fixedly installed in the installation room.

[0021] Preferably, the multiple groups of ultrafiltration membranes in the installation room are connected in series via a connecting pipe, and the connecting pipe runs through the installation room to the outside of the integrated pool.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. Through the design of the aeration tank, the installation room, the first water pump, the guide plate, the storage box, the anaerobic treatment tank, the connecting port, the preliminary filtering mechanism, the scraping mechanism, the fine suspended matter filtering mechanism, the air supply mechanism and the sludge treatment mechanism, when treating livestock and poultry wastewater, the wastewater can be poured into the preliminary filtering mechanism, and the preliminary filtering mechanism will first separate the solid matter from the liquid in the wastewater. The solid matter includes livestock and poultry feces, feed residues, feathers, etc., and the wastewater will enter the anaerobic treatment tank through the preliminary filtering mechanism and the connecting port. Then, the preliminary filtering mechanism can be started to slide and seal the connecting port, so that a sealed oxygen-free environment can be formed in the anaerobic treatment tank. In the absence of oxygen, anaerobic bacteria decompose Organic matter in wastewater, this process is mainly completed through fermentation and anaerobic digestion, which can reduce the organic matter content in wastewater, and methane, carbon dioxide and residual solid matter, namely sludge, will be produced in the decomposition process, and methane and carbon dioxide can be used for energy recovery. After anaerobic treatment, the first water pump can be started to pump the wastewater in the anaerobic treatment tank into the aeration tank. After the wastewater enters the aeration tank, oxygen or air can be supplied to the aeration tank by starting the gas supply mechanism. Under aerobic conditions, microorganisms are used to further decompose the organic matter in the wastewater into water and carbon dioxide, thereby further purifying the wastewater. This step can greatly reduce the organic pollutants in the water and reduce the chemical oxygen demand (COD). and biochemical oxygen demand (BOD). In the aeration tank, during the process of microorganisms decomposing organic matter, the sludge formed by the combination of microorganisms and organic matter is granular. These granular substances will be attached by bubbles in the aeration tank, making them float on the surface. The floating sludge on the surface can be scraped by the scraping mechanism into the drainage channel formed between the guide plate and the discharge end of the sludge treatment mechanism. This drainage channel can guide the sludge to the storage box for centralized collection. The sludge deposited in the anaerobic treatment tank can be scraped by starting the sludge treatment mechanism. As the sludge treatment mechanism continues to scrape, the top of the sludge treatment mechanism can be propped open, and the sludge can also be pushed into the drainage channel and guided to the storage box. The wastewater treated in the aeration tank will be pumped into the fine suspended matter filter mechanism for further water purification, and the remaining tiny particles in the wastewater will be removed and discharged from the integrated pool. The finely filtered wastewater can be disinfected by ultraviolet rays, chlorine or ozone to ensure that bacteria, viruses and other pathogenic microorganisms in the wastewater are effectively killed, which can meet the discharge or recycling standards. This equipment integrates anaerobic and aerobic treatment, which can save space and reduce construction and operation costs. It can also scrape out filtered solid matter such as feces, feed residues, feathers, etc. for centralized collection, which can prevent these solid substances from affecting the water flow and ensure the uniformity and stability of the entire treatment process.

[0024] 2. Through the design of electric push rod, connecting arm, sieve plate, sealing slide plate, first motor, threaded rod, scraper plate, sealing cover, torsion spring and sealing cylinder, when treating livestock and poultry wastewater, the wastewater can be poured into the funnel, and the sieve plate in the funnel will separate the solid matter from the liquid in the wastewater, and the feces, feed residues, feathers, etc. in the solid matter will stay on the upper surface of the sieve plate for preliminary filtration, and the wastewater will enter the anaerobic treatment tank through the holes and connecting ports of the sieve plate. Then the electric push rod can be started to push the sealing slide plate to slide and seal the connecting port, so that a sealed oxygen-free environment can be formed in the anaerobic treatment tank. Under anaerobic conditions, anaerobic microorganisms decompose organic matter in the wastewater through a series of complex biochemical reactions. This process includes the following stages:

[0025] Hydrolysis stage: macromolecular organic matter (such as proteins, fats, carbohydrates) is broken down by hydrolases into smaller molecules, such as amino acids, fatty acids, and sugars;

[0026] Acidification stage: small molecular organic matter is further converted by acidifying bacteria into volatile fatty acids (such as acetic acid, propionic acid) and intermediate products such as hydrogen and carbon dioxide;

[0027] Acetogenesis stage: the acidification products are converted into acetic acid, hydrogen and carbon dioxide by acetogenic bacteria;

[0028] Methanogenesis: Acetic acid and hydrogen are converted into methane (CH 4 ) and carbon dioxide (CO 2 ), to complete the final transformation of organic matter, and then start the first water pump to pump the wastewater into the aeration tank;

[0029] The organic matter in high-concentration organic wastewater is effectively removed, and in an anaerobic environment, anaerobic bacteria obtain energy by decomposing organic matter in the wastewater. The metabolic activities of these microorganisms not only decompose organic matter, but also produce microbial cell bodies. The reproduction and growth of microorganisms will lead to a large increase in cell volume. These microbial cells and incompletely decomposed organic matter will form solid residues, namely sludge, and the generated sludge can be driven by the first motor to drive the threaded rod to drive the scraper plate to scrape the sludge deposited at the bottom of the anaerobic treatment tank, and as the scraper plate is continuously pushed, the scraper plate can drive the top contact plate fixed on the upper surface to touch one end of the sealing cover, and the sealing cover can drive the torsion spring to rotate in the sealing cylinder through the rotating column, so that the sealing cover can be flipped open, and the sludge pushed by the scraper plate can be pushed into the sewage discharge channel and guided to the storage box for centralized collection, and then the first motor can be started again to drive the threaded rod to reverse and pull the scraper plate back, and the sealing cover that is not touched can be automatically flipped and closed by the torsion spring.

[0030] 3. Through the design of the air pump, ball valve pipe, aeration pipe, second motor, transmission column, transmission belt and scraper plate, after the wastewater enters the aeration tank, the air pump can be started to supply oxygen or air to the aeration pipe, and the aeration pipe can supply oxygen or air into the aeration tank, so that the organic matter in the wastewater can be further decomposed into water and carbon dioxide by microorganisms under aerobic conditions, thereby further purifying the wastewater, greatly reducing the organic pollutants in the water, and reducing the chemical oxygen demand (COD) and biochemical oxygen demand (BOD). In the aeration tank, in the process of microorganisms decomposing organic matter, the sludge formed by the combination of microorganisms and organic matter is granular, and these granular substances will be The bubbles will attach and float on the surface, which can start the transmission belt on the outer surface of the transmission column of the second motor to transmit the power, and the transmission belt can drive the scraping plate between to scrape the floating sludge on the surface into the sewage channel formed between the guide plate and the connecting plate. This sewage channel can guide the sludge to the storage box for centralized collection, realizing anaerobic and aerobic treatment operations of the wastewater. Anaerobic treatment can effectively reduce the chemical oxygen demand (COD) and biological oxygen demand (BOD) in the wastewater, while aerobic treatment can further remove residual organic matter and ammonia nitrogen, and through nitrification and denitrification under aerobic conditions, it can effectively remove nitrogen in the wastewater. In addition, aerobic treatment can also help remove some phosphorus.

[0031] 4. Through the design of the second water pump, ultrafiltration membrane and connecting pipe, the treated wastewater in the aeration tank can be pumped into the multiple sets of ultrafiltration membranes in the installation room by the second water pump. After filtering through the multiple sets of ultrafiltration membranes, the suspended matter in the wastewater can be removed, making the effluent clearer. The finely filtered wastewater can be disinfected by ultraviolet rays, chlorine or ozone to ensure that pathogenic microorganisms such as bacteria and viruses in the wastewater are effectively killed, which can meet the discharge or recycling standards and achieve high-quality water treatment effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the livestock and poultry wastewater treatment system of the present invention;

[0033] Figure 2 It is a structural schematic diagram of the aeration tank and the installation room of the present invention;

[0034] Figure 3 It is a structural schematic diagram of the anaerobic treatment tank and storage box of the present invention;

[0035] Figure 4 It is a structural schematic diagram of the gas supply mechanism of the present invention;

[0036] Figure 5 It is a structural schematic diagram of the preliminary filtering mechanism of the present invention;

[0037] Figure 6It is a structural schematic diagram of the sludge treatment mechanism of the present invention;

[0038] Figure 7 It is a structural schematic diagram of the scraping mechanism of the present invention;

[0039] Figure 8 It is a structural schematic diagram of the fine suspended matter filtering mechanism of the present invention.

[0040] In the figure: 1. integrated pool; 101. aeration tank; 102. installation room; 103. first water pump; 104. guide plate; 105. storage box; 106. anaerobic treatment tank; 107. connecting port; 2. preliminary filtering mechanism; 201. electric push rod; 202. connecting arm; 203. sieve plate; 204. sealing slide plate; 205. funnel tube; 3. scraping mechanism; 301. docking plate; 302. second motor; 303. transmission column; 304. transmission belt; 305. Sweeping plate; 4. fine suspended matter filtering mechanism; 401. second water pump; 402. ultrafiltration membrane; 403. connecting pipe; 5. air supply mechanism; 501. air pump; 502. ball valve pipe; 503. aeration pipe; 6. sludge treatment mechanism; 601. first motor; 602. threaded rod; 603. scraping plate; 604. connecting plate; 605. sealing cover; 606. semi-ring disk; 607. rotating column; 608. torsion spring; 609. sealing cylinder; 610. top touch plate. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-Figure 8 , this embodiment provides the following technical solutions:

[0043] like Figure 1-Figure 3As shown, a livestock and poultry wastewater treatment system is used to treat livestock and poultry wastewater, specifically comprising: an integrated pool 1, an anaerobic treatment pool 106, an aeration pool 101 and an installation room 102 are provided on the upper surface of the integrated pool 1, a connecting port 107 is provided on the upper surface of the anaerobic treatment pool 106, and the connecting port 107 can be sealed and covered by a preliminary filtering mechanism 2, the preliminary filtering mechanism 2 is slidably installed on the upper surface of the anaerobic treatment pool 106, a sludge treatment mechanism 6 is slidably installed in the anaerobic treatment pool 106, the sludge treatment mechanism 6 can push the sludge to push the discharge end of the sludge treatment mechanism 6 open and enter the guide plate 104, a sewage discharge channel can be formed between the guide plate 104 and the discharge end of the sludge treatment mechanism 6, and the sewage discharge channel can be used for the sludge treatment mechanism 6 to push the sludge generated in the anaerobic treatment pool 106 into the sewage discharge channel and slide into the storage box 105, and the storage box 105 is fixedly installed on the lower surface of the integrated pool 1;

[0044] A scraping mechanism 3 is fixedly installed on the upper surface of the aeration tank 101, and the scraping mechanism 3 can scrape the scum generated in the aeration tank 101 into the sewage channel and into the storage box 105. An air supply mechanism 5 is fixedly installed in the aeration tank 101, and the air supply mechanism 5 can transport air and oxygen into the aeration tank 101.

[0045] Among them, a fine suspended matter filtering mechanism 4 is fixedly installed in the installation room 102 , and the fine suspended matter filtering mechanism 4 can draw the treated wastewater in the aeration tank 101 into the fine suspended matter filtering mechanism 4 .

[0046] A first water pump 103 is fixedly installed at one end of the integrated pool 1 . The water inlet of the first water pump 103 is connected to the anaerobic treatment pool 106 , and the water outlet of the first water pump 103 is connected to the aeration pool 101 .

[0047] Through the design of the aeration tank 101, the installation room 102, the first water pump 103, the guide plate 104, the storage box 105, the anaerobic treatment tank 106, the connecting port 107, the preliminary filtering mechanism 2, the scraping mechanism 3, the fine suspended matter filtering mechanism 4, the air supply mechanism 5 and the sludge treatment mechanism 6, when treating livestock and poultry wastewater, the wastewater can be poured into the preliminary filtering mechanism 2, and the preliminary filtering mechanism 2 will first separate the solid matter from the liquid in the wastewater. The solid matter includes livestock and poultry feces, feed residues, feathers, etc., and the wastewater will enter the anaerobic treatment tank 106 through the preliminary filtering mechanism 2 and the connecting port 107, and then the preliminary filtering mechanism 2 can be started to slide and seal the connecting port 107, so that a seal can be formed in the anaerobic treatment tank 106. Anaerobic environment, and in the absence of oxygen, anaerobic bacteria decompose organic matter in the wastewater. This process is mainly completed through fermentation and anaerobic digestion, which can reduce the organic matter content in the wastewater, and methane, carbon dioxide and residual solid matter, namely sludge, will be produced in the decomposition process, and methane and carbon dioxide can be used for energy recovery. After anaerobic treatment, the first water pump 103 can be started to pump the wastewater in the anaerobic treatment tank 106 into the aeration tank 101. After the wastewater enters the aeration tank 101, oxygen or air can be supplied to the aeration tank 101 by starting the air supply mechanism 5. Under aerobic conditions, microorganisms are used to further decompose the organic matter in the wastewater into water and carbon dioxide, thereby further purifying the wastewater. This step can greatly reduce the amount of water. The organic pollutants are removed and the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) are reduced. In the aeration tank 101, during the process of decomposing organic matter, the microorganisms and organic matter form granular sludge. These granular substances are attached by bubbles in the aeration tank 101, so that they float on the surface. The scraping mechanism 3 can scrape the floating sludge on the surface into the drainage channel formed between the guide plate 104 and the discharge end of the sludge treatment mechanism (6). The drainage channel can guide the sludge to the storage box 105 for centralized collection. The sludge deposited in the anaerobic treatment tank 106 can be scraped by starting the sludge treatment mechanism 6. As the sludge treatment mechanism 6 continues to scrape, the sludge can be treated. The top of mechanism 6 is propped open, pushing the sludge into the sewage channel and guiding it to the storage box 105 for centralized collection. The wastewater treated by the aeration tank 101 will be drawn into the fine suspended matter filtering mechanism 4 for further water purification, removing the remaining tiny particles in the wastewater and discharging it from the integrated tank 1. The finely filtered wastewater can be disinfected by ultraviolet rays, chlorine or ozone to ensure that bacteria, viruses and other pathogenic microorganisms in the wastewater are effectively killed, which can meet the discharge or recycling standards. This equipment integrates anaerobic and aerobic treatments, which can save space and reduce construction and operation costs. It can also scrape out filtered solid matter, such as feces, feed residues, feathers, etc. for centralized collection, which can prevent these solid substances from affecting the water flow.Ensure the uniformity and stability of the entire processing process.

[0048] like Figure 4-Figure 6 As shown, the preliminary filtering mechanism 2 includes a sealing slide 204, which is slidably installed on the upper surface of the anaerobic treatment tank 106. A funnel tube 205 is fixedly installed on the upper surface of the sealing slide 204, and a sieve plate 203 is fixedly installed in the outlet of the funnel tube 205. The sieve plate 203 can be connected with the connecting port 107 through the sliding of the sealing slide 204, so that the wastewater can pass through the sieve plate 203 in the funnel tube 205 to separate the solid matter and liquid in the wastewater for pre-treatment. The solid matter includes livestock and poultry manure, feed residues, feathers, etc.

[0049] Connecting arms 202 are fixedly installed on both sides of the funnel tube 205. The connecting arms 202 are fixedly installed on one end of the piston rod of the electric push rod 201. The electric push rod 201 is fixedly installed on both sides of the integrated pool 1. The electric push rod 201 can drive the sealing slide plate 204 to seal and cover the upper surface of the connecting port 107 through the full-stroke pushing piston rod, so that a sealed oxygen-free environment is formed in the anaerobic treatment tank 106. This oxygen-free environment can provide microorganisms to decompose organic matter into biogas and carbon dioxide. The generated biogas can be recycled as energy, thereby achieving the purpose of anaerobic treatment.

[0050] The sludge treatment mechanism 6 includes a first motor 601, which is fixedly installed at one end of the integrated tank 1. The output shaft of the first motor 601 is sealed and penetrates into the anaerobic treatment tank 106 and is fixedly installed with a threaded rod 602. The outer surface of the threaded rod 602 is threadedly driven with a scraper plate 603, which is slidably installed on the lower surface of the anaerobic treatment tank 106. A top contact plate 610 is fixedly installed on the upper surface of the scraper plate 603. The top contact plate 610 can push the sealing cover 605 to flip and unfold. A rotating column 607 is fixedly installed on the upper surface of the sealing cover 605. The rotating column 607 can be sealed and penetrated from the anaerobic treatment tank 106 and is rotatably installed in a sealing cylinder 609. The sealing cylinder 609 is fixedly installed on both sides of the integrated tank 1.

[0051] The outer surface of the rotating column 607 is fixedly mounted with a torsion spring 608, and the outer end of the torsion spring 608 is fixedly connected to the sealing cylinder 609, so that the sealing cylinder 609 can be twisted to touch one end of the anaerobic treatment tank 106 to achieve a sealed closed state;

[0052] The anaerobic treatment tank 106 has a connection plate 604 fixedly installed in it, and a semi-ring disk 606 fixedly installed on the lower surface of the connection plate 604. The semi-ring disk 606 is sealed and attached to the outer surface of the rotating column 607, so that the connection plate 604 is in a rotating seal through the rotating connection between the semi-ring disk 606 and the sealing cylinder 609. The connection plate 604 can seal the anaerobic treatment tank 106 by twisting and closing the sealing cylinder 609.

[0053] Among them, the splicing between the connecting plate 604 and the sealing cover 605 can form a sewage discharge channel with the guide plate 104. When the sealing cover 605 closes and seals the anaerobic treatment tank 106, the scum in the aeration tank 101 can be pushed in. When the sealing cover 605 is propped open by the top contact plate 610, the sludge formed in the anaerobic treatment tank 106 can be pushed into the sewage discharge channel and flow into the storage box 105.

[0054] Through the design of the electric push rod 201, the connecting arm 202, the sieve plate 203, the sealing slide plate 204, the first motor 601, the threaded rod 602, the scraper plate 603, the sealing cover 605, the torsion spring 608 and the sealing cylinder 609, when treating livestock and poultry wastewater, the wastewater can be poured into the funnel 205, and the sieve plate 203 in the funnel 205 will separate the solid matter from the liquid in the wastewater, and the feces, feed residues, feathers and the like in the solid matter will stay on the upper surface of the sieve plate 203 for preliminary filtration, and the wastewater will enter the anaerobic treatment tank 106 through the holes and the connecting port 107 of the sieve plate 203, and then the electric push rod 201 can be started to push the sealing slide plate 204 to slide and seal the connecting port 107, so that a sealed oxygen-free environment can be formed in the anaerobic treatment tank 106. Under anaerobic conditions, anaerobic microorganisms decompose organic matter in the wastewater through a series of complex biochemical reactions. This process includes the following stages:

[0055] Hydrolysis stage: macromolecular organic matter (such as proteins, fats, carbohydrates) is broken down by hydrolases into smaller molecules, such as amino acids, fatty acids, and sugars;

[0056] Acidification stage: small molecular organic matter is further converted by acidifying bacteria into volatile fatty acids (such as acetic acid, propionic acid) and intermediate products such as hydrogen and carbon dioxide;

[0057] Acetogenesis stage: the acidification products are converted into acetic acid, hydrogen and carbon dioxide by acetogenic bacteria;

[0058] Methanogenesis: Acetic acid and hydrogen are converted into methane (CH 4 ) and carbon dioxide (CO 2 ), to complete the final transformation of organic matter, and then start the first water pump 103 to pump the wastewater into the aeration tank 101;

[0059] The organic matter in high-concentration organic wastewater is effectively removed, and in an anaerobic environment, anaerobic bacteria obtain energy by decomposing organic matter in wastewater. The metabolic activities of these microorganisms not only decompose organic matter, but also produce microbial cell bodies. The reproduction and growth of microorganisms will lead to a large increase in cell volume. These microbial cells and incompletely decomposed organic matter will form solid residues, i.e., sludge. The generated sludge can be scraped by starting the first motor 601 to drive the threaded rod 602 to drive the scraper plate 603 to scrape the sludge deposited at the bottom of the anaerobic treatment tank 106, and as the scraper plate 603 is continuously pushed When the scraper plate 603 is pushed, the scraper plate 603 can drive the top contact plate 610 fixed on the upper surface to touch one end of the sealing cover 605, and the sealing cover 605 can drive the torsion spring 608 to rotate in the sealing tube 609 through the rotating column 607, so that the sealing cover 605 can be flipped open, and the sludge pushed by the scraper plate 603 can be pushed into the sewage discharge channel and guided to the storage box 105 for centralized collection, and then the first motor 601 can be started again to drive the threaded rod 602 to reverse and pull back the scraper plate 603, and the sealing cover 605 that is not touched can automatically reverse and close through the torsion spring 608.

[0060] like Figure 7 As shown, the air supply mechanism 5 includes an air pump 501, the air outlet of the air pump 501 is connected to a ball valve tube 502, the other end of the ball valve tube 502 is connected to an aeration tank 101, one end of the ball valve tube 502 located in the aeration tank 101 is connected to an aeration tube 503, and the aeration tube 503 is located in the aeration tank 101.

[0061] The aeration pipe 503 can compress the air and introduce bubbles into the aeration tank 101. The oxygen in the bubbles dissolves in the water, increasing the dissolved oxygen content in the water. Aerobic microorganisms use the oxygen dissolved in the water to decompose organic pollutants in the wastewater, thereby achieving the purpose of aerobic treatment. Under the condition of sufficient oxygen, the microorganisms can further decompose the remaining organic matter in the wastewater to produce water and carbon dioxide. This step can significantly reduce the organic pollutants in the water.

[0062] The scraping mechanism 3 includes two groups of docking plates 301, which are fixedly installed on the upper surface of the aeration tank 101. A transmission column 303 is rotatably installed between the two groups of docking plates 301. A second motor 302 is fixedly installed at one end of the docking plate 301. The output shaft of the second motor 302 passes through the docking plate 301 and is fixedly connected to the transmission column 303. A transmission belt 304 is sleeved on the outer surface of the two groups of transmission columns 303. A scraping plate 305 is fixedly installed between the transmission belts 304. The scraping plate 305 can scrape the scum rising in the wastewater in the aeration tank 101 into the sewage discharge channel formed between the guide plate 104 and the discharge end of the sludge treatment mechanism 6.

[0063] Through the design of the air pump 501, the ball valve tube 502, the aeration tube 503, the second motor 302, the transmission column 303, the transmission belt 304 and the scraper plate 305, after the wastewater enters the aeration tank 101, oxygen or air can be supplied to the aeration tube 503 by starting the air pump 501, and the aeration tube 503 can supply oxygen or air into the aeration tank 101, so that the organic matter in the wastewater can be further decomposed into water and carbon dioxide by microorganisms under aerobic conditions, thereby further purifying the wastewater, greatly reducing the organic pollutants in the water, and reducing the chemical oxygen demand (COD) and biochemical oxygen demand (BOD). In the aeration tank 101, in the process of microorganisms decomposing organic matter, the sludge formed by the combination of microorganisms and organic matter is granular, and these granular substances are in Bubbles will be attached to the aeration tank 101, making them float on the surface, and the transmission belt 304 on the outer surface of the transmission column 303 driven by the second motor 302 can be started for transmission, and the transmission belt 304 can drive the scraping plate 305 between them to scrape the floating sludge on the surface into the sewage channel formed between the guide plate 104 and the connecting plate 604. This sewage channel can guide the sludge to the storage box 105 for centralized collection, thereby realizing anaerobic and aerobic treatment operations of the wastewater. Anaerobic treatment can effectively reduce the chemical oxygen demand (COD) and biological oxygen demand (BOD) in the wastewater, while aerobic treatment can further remove residual organic matter and ammonia nitrogen, and through nitrification and denitrification under aerobic conditions, it can effectively remove nitrogen in the wastewater. In addition, aerobic treatment can also help remove some phosphorus.

[0064] like Figure 8 As shown, the fine suspended matter filtering mechanism 4 includes a second water pump 401, which is fixedly installed at one end of the integrated pool 1, and the water suction port of the second water pump 401 is connected to the aeration tank 101. The discharge port of the second water pump 401 passes through the installation room 102 and is connected to an ultrafiltration membrane 402 installed therein, and the ultrafiltration membrane 402 is fixedly installed in the installation room 102.

[0065] The multiple groups of ultrafiltration membranes 402 in the installation room 102 are connected in series via a connecting pipe 403 , and the connecting pipe 403 runs through the installation room 102 to the outside of the integrated pool 1 .

[0066] Through the design of the second water pump 401, the ultrafiltration membrane 402 and the connecting pipe 403, the treated wastewater in the aeration tank 101 can be pumped into the multiple sets of ultrafiltration membranes 402 in the installation room 102 by the second water pump 401, and the suspended matter in the wastewater can be removed by filtering through the multiple sets of ultrafiltration membranes 402, making the effluent clearer, and the finely filtered wastewater can be disinfected by ultraviolet rays, chlorine or ozone to ensure that pathogenic microorganisms such as bacteria and viruses in the wastewater are effectively killed, thereby meeting the discharge or recycling standards and achieving high-quality water treatment effects.

[0067] According to the above technical scheme, the working steps of this scheme are summarized and sorted out: when treating livestock and poultry wastewater, the wastewater can be poured into the funnel 205, and the sieve plate 203 in the funnel 205 will separate the solid matter from the liquid in the wastewater, and the feces, feed residues, feathers, etc. in the solid matter will stay on the upper surface of the sieve plate 203 for preliminary filtration, and the wastewater will enter the anaerobic treatment tank 106 through the holes and the connecting port 107 of the sieve plate 203, and then the electric push rod 201 can be started to push the sealing slide plate 204 to slide and seal the connecting port 107, so that a sealed oxygen-free environment can be formed in the anaerobic treatment tank 106. Under anaerobic conditions, anaerobic microorganisms decompose organic matter in the wastewater through a series of complex biochemical reactions. This process includes the following stages:

[0068] Hydrolysis stage: macromolecular organic matter (such as proteins, fats, carbohydrates) is broken down by hydrolases into smaller molecules, such as amino acids, fatty acids, and sugars;

[0069] Acidification stage: small molecular organic matter is further converted by acidifying bacteria into volatile fatty acids (such as acetic acid, propionic acid) and intermediate products such as hydrogen and carbon dioxide;

[0070] Acetogenesis stage: the acidification products are converted into acetic acid, hydrogen and carbon dioxide by acetogenic bacteria;

[0071] Methanogenesis: Acetic acid and hydrogen are converted into methane (CH 4 ) and carbon dioxide (CO 2), the final transformation of organic matter is completed, and then the first water pump 103 can be started to pump the wastewater into the aeration tank 101. After the wastewater enters the aeration tank 101, oxygen or air can be supplied to the aeration pipe 503 by starting the air pump 501, and the aeration pipe 503 can supply oxygen or air into the aeration tank 101, so that the organic matter in the wastewater can be further decomposed into water and carbon dioxide by microorganisms under aerobic conditions, thereby further purifying the wastewater, greatly reducing organic pollutants in the water, and reducing chemical oxygen demand (COD) and biochemical oxygen demand (BOD). In the aeration tank 101, in the process of decomposing organic matter by microorganisms, the sludge formed by the combination of microorganisms and organic matter is granular. These granular substances will be attached by bubbles in the aeration tank 101, making them float on the surface, which can start The transmission belt 304 on the outer surface of the transmission column 303 driven by the second motor 302 is driven, and the transmission belt 304 can drive the scraping plate 305 between them to scrape the floating sludge on the surface into the sewage channel formed between the guide plate 104 and the connecting plate 604. This sewage channel can guide the sludge to the storage box 105 for centralized collection, and the treated wastewater in the aeration tank 101 can be pumped into the multiple sets of ultrafiltration membranes 402 in the installation room 102 by the second water pump 401. After filtering by the multiple sets of ultrafiltration membranes 402, the suspended matter in the wastewater can be removed, making the effluent clearer, and the finely filtered wastewater can be disinfected by ultraviolet rays, chlorine or ozone to ensure that pathogenic microorganisms such as bacteria and viruses in the wastewater are effectively killed, so as to meet the discharge or recycling standards and achieve high-quality water treatment effects.

[0072] In summary: the treatment system integrates anaerobic and aerobic treatments, which can save floor space, reduce construction and operating costs, and can scrape out filtered solid matter such as feces, feed residues, feathers, etc. for centralized collection, preventing these solid substances from affecting the water flow and ensuring the uniformity and stability of the entire treatment process.

[0073] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A livestock and poultry wastewater treatment system, characterized in that: include: An integrated pool (1), wherein an anaerobic treatment pool (106), an aeration pool (101) and an installation room (102) are provided on the upper surface of the integrated pool (1), wherein a communication port (107) is provided on the upper surface of the anaerobic treatment pool (106), wherein the communication port (107) can be sealed and slidably covered by a preliminary filtering mechanism (2), wherein the preliminary filtering mechanism (2) is slidably installed on the upper surface of the anaerobic treatment pool (106), wherein a sludge treatment mechanism (6) is slidably installed in the anaerobic treatment pool (106), wherein The sludge treatment mechanism (6) can push the sludge to push the discharge end of the sludge treatment mechanism (6) open and enter the guide plate (104); a drainage channel can be formed between the guide plate (104) and the discharge end of the sludge treatment mechanism (6); the drainage channel can allow the sludge treatment mechanism (6) to push the sludge generated in the anaerobic treatment tank (106) into the drainage channel and slide it into the storage box (105); the storage box (105) is fixedly mounted on the lower surface of the integrated tank (1); A scraping mechanism (3) is fixedly installed on the upper surface of the aeration tank (101), and the scraping mechanism (3) is capable of scraping and sweeping scum generated in the aeration tank (101) into the sewage discharge channel and into the storage box (105); an air supply mechanism (5) is fixedly installed in the aeration tank (101), and the air supply mechanism (5) is capable of conveying air and oxygen into the aeration tank (101); A fine suspended matter filtering mechanism (4) is fixedly installed in the installation room (102), and the fine suspended matter filtering mechanism (4) is capable of pumping the treated wastewater in the aeration tank (101) into the fine suspended matter filtering mechanism (4); A first water pump (103) is fixedly installed at one end of the integrated pool (1), the water inlet of the first water pump (103) is connected to the anaerobic treatment pool (106), and the discharge outlet of the first water pump (103) is connected to the aeration pool (101); The preliminary filtering mechanism (2) comprises a sealing slide plate (204), the sealing slide plate (204) being slidably mounted on the upper surface of the anaerobic treatment tank (106), a funnel tube (205) being fixedly mounted on the upper surface of the sealing slide plate (204), a sieve plate (203) being fixedly mounted in the outlet of the funnel tube (205), connecting arms (202) being fixedly mounted on both sides of the funnel tube (205), the connecting arms (202) being fixedly mounted on one end of a piston rod of an electric push rod (201), and the electric push rod (201) being fixedly mounted on both sides of the integrated tank (1); The sludge treatment mechanism (6) comprises a first motor (601), the first motor (601) being fixedly mounted at one end of the integrated tank (1), the output shaft of the first motor (601) being sealed and extending into the anaerobic treatment tank (106) and being fixedly mounted with a threaded rod (602), the outer surface of the threaded rod (602) being threadedly driven with a scraper plate (603), the scraper plate (603) being slidably mounted on the lower surface of the anaerobic treatment tank (106), the upper surface of the scraper plate (603) being fixedly mounted with a top contact plate (610), the top contact plate (610) being capable of pushing the sealing cover (605) to flip and unfold; The air supply mechanism (5) comprises an air pump (501), the air outlet of the air pump (501) is connected to a ball valve pipe (502), the other end of the ball valve pipe (502) is connected to an aeration tank (101), and one end of the ball valve pipe (502) located in the aeration tank (101) is connected to an aeration pipe (503); The scraping mechanism (3) comprises two groups of docking plates (301), the two groups of docking plates (301) are fixedly mounted on the upper surface of the aeration tank (101), a transmission column (303) is rotatably mounted between the two groups of docking plates (301), a second motor (302) is fixedly mounted on one end of the docking plate (301), an output shaft of the second motor (302) passes through the docking plate (301) and is fixedly connected to the transmission column (303), a transmission belt (304) is sleeved on the outer surface of the two groups of transmission columns (303), and a scraping plate (305) is fixedly mounted between the transmission belts (304).

2. A livestock and poultry wastewater treatment system according to claim 1, characterized in that: The sieve plate (203) can be connected to the communication port (107) by sliding the sealing slide plate (204), so that the wastewater can pass through the sieve plate (203) in the funnel tube (205) to separate solid matter from liquid in the wastewater for pre-treatment, wherein the solid matter includes livestock and poultry excrement, feed residues, and feathers.

3. A livestock and poultry wastewater treatment system according to claim 2, characterized in that: The electric push rod (201) can drive the sealing slide plate (204) to seal and cover the upper surface of the connecting port (107) through the full-stroke pushing piston rod, so that a sealed oxygen-free environment is formed in the anaerobic treatment tank (106). This oxygen-free environment can allow microorganisms to decompose organic matter into biogas and carbon dioxide, and the generated biogas can be recycled as energy, thereby achieving the purpose of anaerobic treatment.

4. A livestock and poultry wastewater treatment system according to claim 1, characterized in that: A rotating column (607) is fixedly mounted on the upper surface of the sealing cover (605); the rotating column (607) can be sealed and penetrated from the anaerobic treatment tank (106) and is rotatably mounted in a sealing cylinder (609); the sealing cylinder (609) is fixedly mounted on both sides of the integrated tank (1); A torsion spring (608) is fixedly mounted on the outer surface of the rotating column (607), and the outer end of the torsion spring (608) is fixedly connected to the sealing cylinder (609), so that the sealing cylinder (609) can be twisted to contact one end of the anaerobic treatment tank (106) to achieve a sealed closed state; A connecting plate (604) is fixedly installed in the anaerobic treatment tank (106), a semi-ring disk (606) is fixedly installed on the lower surface of the connecting plate (604), and the semi-ring disk (606) is sealingly attached to the outer surface of the rotating column (607), so that the connecting plate (604) is in a rotating sealed state through the rotating connection between the semi-ring disk (606) and the sealing cylinder (609), and the connecting plate (604) can perform a sealing operation on the anaerobic treatment tank (106) through the twisting closure of the sealing cylinder (609); The connection between the connecting plate (604) and the sealing cover (605) can form a sewage discharge channel with the guide plate (104); when the sealing cover (605) closes and seals the anaerobic treatment tank (106), the scum in the aeration tank (101) can be pushed into the channel; when the sealing cover (605) is pushed open by the top contact plate (610), the sludge formed in the anaerobic treatment tank (106) can be pushed into the sewage discharge channel and flow into the storage box (105).

5. The livestock and poultry wastewater treatment system according to claim 1, characterized in that: The aeration pipe (503) is located in the aeration tank (101).

6. A livestock and poultry wastewater treatment system according to claim 5, characterized in that: The aeration pipe (503) can compress the air and introduce bubbles into the aeration tank (101). The oxygen in the bubbles dissolves in the water, increasing the dissolved oxygen content in the water. Aerobic microorganisms use the oxygen dissolved in the water to decompose organic pollutants in the wastewater, thereby achieving the purpose of aerobic treatment. Under the condition of sufficient oxygen, the microorganisms can further decompose the remaining organic matter in the wastewater to produce water and carbon dioxide. This step can significantly reduce the organic pollutants in the water.

7. The livestock and poultry wastewater treatment system according to claim 1, characterized in that: The scraping plate (305) can scrape and sweep the scum rising in the wastewater in the aeration tank (101) into the sewage discharge channel formed between the guide plate (104) and the discharge end of the sludge treatment mechanism (6).

8. The livestock and poultry wastewater treatment system according to claim 1, characterized in that: The fine suspended matter filtering mechanism (4) comprises a second water pump (401), the second water pump (401) being fixedly mounted at one end of the integrated pool (1), the water inlet of the second water pump (401) being connected to the aeration pool (101), the discharge outlet of the second water pump (401) penetrating into the installation room (102) and being connected to an ultrafiltration membrane (402) installed therein, the ultrafiltration membrane (402) being fixedly mounted in the installation room (102).

9. A livestock and poultry wastewater treatment system according to claim 8, characterized in that: The multiple groups of ultrafiltration membranes (402) in the installation room (102) are connected in series via a connecting pipe (403), and the connecting pipe (403) runs through the installation room (102) to the outside of the integrated pool (1).

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