A low-carbon biological treatment system for manure and sewage

Abstract

The present invention discloses a low-carbon biological treatment system for manure and sewage, which is in the field of manure and sewage treatment technology. The system comprises a manure collecting tank, a grille tank, a separation device, a solid-liquid separation tank, a regulating tank, an anaerobic treatment tank, an aerobic and facultative aerobic treatment tank, an oxidation pond, a decolorization and sterilization tank, and a water storage tank. The manure collecting tank, the grille tank, the separation device, the solid-liquid separation tank, the regulating tank, the anaerobic treatment tank, the aerobic and facultative aerobic treatment tank, the oxidation pond, the decolorization and sterilization tank, and the water storage tank are sequentially connected by pipelines. By separating the garbage in the manure and sewage before biological treatment, the manure and sewage can be in a more suitable state for subsequent fermentation treatment.

Description

Technical Field

[0001] The present invention belongs to the technical field of manure treatment, and in particular is a low-carbon biological treatment system for manure. Background Art

[0002] As economies develop, people travel more frequently. Tourist attractions, parks, plazas, and subway and bus stations lack adequate restrooms, leading to a growing problem of substandard toilet waste. Timely treatment of toilet waste is urgently needed. Public restrooms are numerous and scattered, and much of the waste is discharged directly into sewage pipes and sewers. These contain numerous pathogens and insect eggs, which can cause significant environmental pollution. Traditional sewage treatment equipment requires significant floor space and takes a long time to process, making it unsuitable for use in public restrooms with high traffic volumes.

[0003] Chinese Patent Publication No. CN202449951U discloses a biological sedimentation and purification system for manure, and a biological recycling system for organic waste and sewage. The system includes a biological sedimentation and purification tank, a biological recycling system for organic waste and sludge, and a biological recycling system for sewage. It is characterized in that organic sewage and human and animal excrement are precipitated in the biological sedimentation and purification tank EM to form sludge, and the organic waste and sludge are fermented to feed earthworms, and the earthworm castings and sewage are used to cultivate flowers, trees, vegetables, and fruits. The earthworms, vegetables, and fruits harvested from this biological recycling ecosystem can meet the standards of pollution-free food or green food. Organic waste such as discarded plants and garbage is used as earthworm feed, and the effluent is reused or discharged (better than the GB / T18920-2002 standard). This system eliminates pollution from garbage, organic sewage, and human and animal excrement at the source, such as homes, hotels, government agencies, schools, residential areas, enterprises, and farms, to form green and low-carbon ecological communities and residences.

[0004] The system achieves high-efficiency treatment of manure and sewage by improving the septic tank, but it does not perform certain garbage separation operations on the manure and sewage before fermentation treatment. When there is too much non-degradable and fermentable garbage in the manure and sewage, it will affect the subsequent manure and sewage treatment operations to a certain extent. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a low-carbon biological treatment system for manure and sewage, which can separate the garbage in the manure and sewage before biological treatment, so that the manure and sewage can be in a more suitable state for subsequent fermentation treatment.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a low-carbon biological treatment system for manure and sewage, comprising a manure collecting tank, a grille tank, a separation device, a solid-liquid separation tank, a regulating tank, an anaerobic treatment tank, an aerobic and facultative aerobic treatment tank, an oxidation pond, a decolorization and sterilization tank and a water storage tank, wherein the manure collecting tank, the grille tank, the separation device, the solid-liquid separation tank, the regulating tank, the anaerobic treatment tank, the aerobic and facultative aerobic treatment tank, the oxidation pond, the decolorization and sterilization tank and the water storage tank are connected in sequence through pipes.

[0007] The principle and beneficial effects of the basic scheme are: during operation, the manure collecting tank will collect the manure, and then the manure will flow through the pipe to the grille tank, the grille tank will remove the large garbage in the manure to play a preliminary treatment of the manure, and avoid the excessive large garbage in the manure affecting the subsequent manure treatment operation, and then the manure after preliminary treatment will be transported to the separation device, which will further treat the manure and separate the domestic garbage in the manure, such as plastics, to avoid the subsequent fermentation and reuse of the manure. The manure after two treatments will be transported to the solid-liquid separation tank, the solid-liquid separation tank will perform solid-liquid separation on the manure, so that the solid and liquid of the manure are separated, and the separated manure liquid will be transported to the regulating tank, which will adjust the water volume, water quality, temperature and pH of the manure liquid before anaerobic fermentation treatment, so that the state of the manure liquid is more suitable for anaerobic fermentation, thereby improving the efficiency of anaerobic fermentation.

[0008] When the parameters of the manure liquid are adjusted appropriately, the manure liquid is input into the anaerobic fermentation tank. This is the first step of biological treatment. After the manure liquid is treated by anaerobic fermentation, biogas will be generated. The biogas generated can be recycled, thereby realizing the preliminary recovery and resource conversion of manure, and converting the manure liquid into usable biogas through fermentation, thereby converting manure resources into utilization. Then, after anaerobic fermentation, manure will produce a certain amount of biogas while producing biogas in the reaction process. The biogas will then be transported to aerobic and facultative treatment tanks. The anaerobic-anoxic-aerobic activated sludge method is used in the aerobic and facultative treatment tanks to preliminarily treat the biogas, so that various substances in the biogas that are not suitable for discharge are preliminarily treated in the aerobic and facultative treatment tanks. The treated manure liquid will then be transported to oxidation ponds, of which the oxidation ponds mainly include aerobic ponds and facultative ponds. After the manure is transported to the oxidation pond, the ammonia nitrogen and organic matter in the biogas slurry can be removed under the action of the oxidation pond, so that the biogas slurry can be treated again, and the organic matter contained in the biogas slurry can be treated more fully again. Then the treated biogas slurry will be transported to the decolorization and sterilization tank. After the biogas slurry flows into the decolorization and sterilization tank, it will be decolorized and sterilized under the action of the decolorization and sterilization tank, so that the biogas slurry is purified to a large extent, so that the harmful pathogenic microorganisms contained in the biogas slurry are eliminated, and the biogas slurry is finally treated to meet the national water quality and hygiene standards. The finally treated biogas slurry can be recycled and used for flushing water and irrigation water in daily life, and after the biogas slurry is treated, it will be input into the water storage tank. The water storage tank can store the recyclable biogas slurry, so that when water resources are needed, they can be directly withdrawn from the water storage tank, thereby realizing the flexible use of water resources.

[0009] Furthermore, the grille pool is connected to a garbage storage pool through a connecting pipe.

[0010] The principle and beneficial effects of the basic solution are: the grate pool will carry out preliminary treatment of the large garbage contained in the manure, and the treated large garbage will be transported to the garbage storage pool, and then the garbage storage pool can store the garbage separated from the manure in time, and according to subsequent needs, the separated garbage can be reprocessed to maximize the utilization of the garbage. At the same time, the garbage separated from the manure can be collected in time through the garbage storage pool, which can avoid excessive separation of large garbage and thus affect the subsequent manure treatment operations.

[0011] Furthermore, the separation device includes a treatment tank and a separation tank, the separation tank is located in the treatment tank and rotates with the treatment tank, a plurality of separation holes are provided on the tank wall of the separation tank, an annular partition plate is provided at the bottom of the separation tank, the separation tank rotates with the annular partition plate, the annular partition plate divides the interior of the treatment tank into a feces collection chamber and a garbage collection chamber, the garbage collection chamber is located below the annular partition plate, a support column is fixedly connected to the bottom of the separation tank, the support column is located in the garbage collection chamber, the support column is fixedly connected to the bottom of the treatment tank at one end away from the separation tank, a first motor is provided in the support column, the output shaft of the first motor is fixedly connected to the center of the bottom of the separation tank, a feed port is provided at the bottom of the separation tank, a one-way valve is provided in the feed port, and the feed port and the support column are staggered.

[0012] A second motor is fixedly connected to the top of the processing tank. The power of the second motor is greater than that of the first motor. The output shaft of the second motor is fixedly connected to a hollow transmission shaft. A hollow auxiliary ring is provided at the contact point between the transmission shaft and the processing tank. The hollow part of the auxiliary ring is connected to the hollow part of the transmission shaft. A number of hollow stirring shafts are provided on the transmission shaft. A first pump assembly is provided above the second motor. Support frames are fixedly connected to both sides of the first pump assembly. The support frame is fixedly connected to the top of the processing tank at one end away from the first pump assembly. The first pump assembly is connected to a liquid delivery pipeline, which passes through the processing tank. The top wall of the tank is connected to the hollow part of the auxiliary ring, the hollow part of the transmission shaft is connected to the hollow part of the stirring shaft, the hollow part of the stirring shaft is provided with a number of nozzles, and the number of nozzles are all connected to the hollow part of the stirring shaft. Sliders are provided on both sides of the stirring shaft, and the top wall of the processing tank is provided with slide rails corresponding to the sliders. The stirring shaft and the processing tank are slidably matched through the sliders and the slide rails. A feed channel is provided on the top of the processing tank, and the feed channel is connected to the separation tank. A discharge pipe is connected to one side of the processing tank, and the discharge pipe is connected to the feces collection chamber. The discharge pipe is connected to the solid-liquid separation tank at one end away from the processing tank.

[0013] The principle and beneficial effects of the basic scheme are as follows: during operation, the preliminarily treated feces and sewage are input into the separation tank from the feed channel, and then the first motor and the second motor are started, wherein the power of the second motor is greater than the power of the first motor, so the output shaft of the second motor rotates faster than the output shaft of the first motor, thereby driven by the second motor, the transmission shaft rotates, and when the transmission shaft rotates, the stirring shaft will also rotate, and after the stirring shaft rotates, the stirring shaft will continuously stir the feces and sewage flowing into the separation tank, thereby separating the feces and sewage into smaller states, and at the same time starting the first pump assembly, when the first pump assembly is started, under the drive of the pump assembly, the flushing water will flow from the hollow part of the transmission shaft to the hollow part of the stirring shaft, and then the water will flow to the nozzle, thereby supplying water to the nozzle, thereby the nozzle will spray water into the separation tank, and after the nozzle sprays water, the nozzle can flush and crush some feces that the stirring shaft has not been able to crush, and then the feces will be crushed to a smaller diameter under the action of the stirring shaft and the nozzle.

[0014] At the same time, when the first motor is started, the separation tank will rotate under the drive of the first motor. When the separation tank rotates, a certain centrifugal force will be generated inside the separation tank. Then, due to the design of the separation hole, the feces will be driven by the centrifugal force to approach the tank wall of the separation tank. After being crushed, feces with suitable diameters will flow from the separation hole to the feces collection chamber to collect the feces. Then, the garbage in the feces, such as plastic and gravel, will not be crushed under the flushing of the stirring shaft and the nozzle. Therefore, compared with the crushed feces, these garbage will be larger, and thus the garbage will not fall into the feces collection chamber through the separation hole. At the same time, the garbage in the separation tank, such as gravel, will settle to the bottom of the separation tank under the factor of its own gravity. Then, the one-way valve will be opened, and the gravel and other garbage will flow through the material port at the bottom of the separation tank to the garbage collection chamber for collection.

[0015] At the same time, the plastic waste on the feces will float with the liquid, so the plastic waste will float in the separation tank. When the plastic waste is processed, the first motor is first turned off, and then the stirring shaft is driven to rotate by the second motor. When the stirring shaft rotates, the stirring shaft can contact the floating plastic waste, wherein the liquid in the separation tank will slowly flow into the feces collection chamber, thereby the plastic waste will adhere to the stirring shaft, and at the same time, the first pump assembly is started, thereby the nozzle will spray water, and when the nozzle sprays water, the liquid it sprays will flush the stirring shaft, thereby flushing the plastic waste on the stirring shaft, and then the plastic waste will flow to the feed port at the bottom of the separation tank along the flow direction of the water, so that the plastic waste will also fall into the garbage collection chamber. The stirring shaft can not only adhere to the plastic waste floating on the top of the liquid, but also contact the plastic waste floating everywhere in the liquid, thereby achieving a more comprehensive and comprehensive adhesion of the stirring shaft to the plastic waste, and causing the plastic waste to fall into the garbage collection chamber after processing. This design allows for the separation of manure and sewage. On the one hand, the manure and sewage are processed into a relatively small diameter, allowing it to fall smoothly into the manure and sewage collection chamber and be separated smoothly from other garbage. On the other hand, due to the different characteristics of the separated garbage, the stirring shaft and the nozzle can coordinate to make both sinking garbage and floating garbage fall into the garbage collection chamber, thereby achieving garbage collection and processing. The manure and sewage that falls into the manure and sewage treatment box will be input into the solid-liquid separation tank through the discharge pipe for separation.

[0016] Furthermore, a feed pipe is provided on one side of the processing tank, the feed pipe is connected to the garbage collection chamber, the feed pipe is connected to the separation tank at one end away from the processing tank, the separation tank is connected to the garbage collection chamber through the feed pipe, a second pump assembly is connected to the feed pipe, and a filter layer is provided in the feed pipe near the end of the processing tank.

[0017] The principle and beneficial effect of the basic solution are as follows: after the garbage is collected into the garbage collection chamber, there is a certain possibility that the garbage will carry a certain amount of feces and dirt and fall into the garbage collection chamber. Therefore, when the material in the garbage collection chamber is processed, the second pump assembly is first turned on, and then, driven by the second pump assembly, the liquid and part of the feces and dirt in the garbage collection chamber will flow into the separation tank along the feeding pipe. At the same time, due to the design of the filter layer, the garbage in the garbage collection chamber will be retained in the garbage collection chamber due to its large volume, while the liquid and feces and dirt will flow along the feeding pipe, thereby realizing the reprocessing of the garbage collection chamber, so that the feces and dirt can be fully utilized, avoiding the waste of feces and dirt while separating the feces and dirt.

[0018] Furthermore, scrapers are provided at both ends of the stirring shaft.

[0019] The principle and beneficial effects of the basic scheme are: when the separation tank generates centrifugal force during rotation, the feces and sewage flow into the feces and sewage collection chamber along the separation hole under the centrifugal force, but some larger garbage will stick to the wall of the separation tank due to the centrifugal force. Therefore, when the agitator shaft rotates, the scraper can hang down the garbage stuck on the inner wall of the separation tank, and then the garbage will fall from the material port into the garbage collection chamber after being scraped off.

[0020] Furthermore, a sealing sleeve is provided at the contact point between the transmission shaft and the processing tank.

[0021] The principle and beneficial effect of the basic solution are: the design of the sealing sleeve can prevent the feces in the separation tank from being driven out of the tank body when the drive shaft rotates.

[0022] Furthermore, the solid-liquid separation tank is connected to the composting tank through a connecting pipe.

[0023] The basic solution's principles and benefits are as follows: a solid-liquid separation tank transfers the separated solids from the manure to a composting tank, where they accumulate for a period of time to react. During composting, microorganisms degrade the organic matter, transforming it into humus. The heat generated by the biochemical reactions during composting kills microorganisms and parasites, transforming the manure into high-quality feed.

[0024] Furthermore, the anaerobic treatment tank is connected to the composting tank through a connecting pipe.

[0025] The principle and beneficial effects of the basic scheme are: when the manure liquid is treated in the anaerobic treatment tank, a certain amount of sludge will be produced. Then, because the anaerobic treatment tank is connected to the composting tank through a connecting pipe, the sludge can be input into the composting tank for conversion reaction into organic fertilizer, thereby avoiding the waste of resources in the entire biological treatment process of manure to a large extent, and allowing the manure resources to be converted and utilized to a large extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the low-carbon biological treatment system for manure and sewage in an embodiment of the present invention.

[0027] Figure 2 It is a front cross-sectional view of the low-carbon biological treatment system for manure and sewage in an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The following is further described in detail through specific implementation methods:

[0029] The figure marks in the drawings of the specification include: processing tank 1, separation tank 2, separation hole 3, stirring shaft 4, scraper 5, nozzle 6, discharge pipe 7, annular partition plate 8, support column 9, first motor 10, feed pipe 11, second pump assembly 12, support frame 13, annular groove 14, first pump assembly 15, liquid delivery pipe 16, second motor 17, transmission shaft 18, feed channel 19.

[0030] The embodiment is basically as shown in the attached Figure 1 As shown: A low-carbon biological treatment system for manure and sewage, including a manure collecting tank, a grille tank, a separation device, a solid-liquid separation tank, a regulating tank, an anaerobic treatment tank, an aerobic and facultative aerobic treatment tank, an oxidation pond, a decolorization and sterilization tank and a water storage tank. The manure collecting tank, the grille tank, the separation device, the solid-liquid separation tank, the regulating tank, the anaerobic treatment tank, the aerobic and facultative aerobic treatment tank, the oxidation pond, the decolorization and sterilization tank and the water storage tank are connected in sequence through pipes.

[0031] The specific implementation process is as follows: during operation, the manure collection tank will collect the manure, and then the manure will flow through the pipe to the grille tank, the grille tank will remove large garbage in the manure to play a preliminary treatment of the manure, to avoid too much large garbage in the manure affecting the subsequent manure treatment operation, and then the manure after preliminary treatment will be transported to the separation device, the separation device will further process the manure, and separate the domestic garbage in the manure, such as plastics, to avoid the subsequent fermentation and reuse of the manure, and the excessive domestic garbage will affect the fermentation treatment effect of the manure, and then the manure after two treatments will be transported to the solid-liquid separation tank, the solid-liquid separation tank will perform solid-liquid separation on the manure, so that the solid and liquid of the manure are separated, and the separated manure liquid will be transported to the regulating tank, which will adjust the water volume, water quality, temperature and pH of the manure liquid before anaerobic fermentation treatment, so that the state of the manure liquid is more suitable for anaerobic fermentation, thereby improving the efficiency of anaerobic fermentation.

[0032] When the parameters of the manure liquid are adjusted appropriately, the manure liquid is input into the anaerobic fermentation tank. This is the first step of biological treatment. After the manure liquid is treated by anaerobic fermentation, biogas will be generated. The biogas generated can be recycled, thereby realizing the preliminary recovery and resource conversion of manure, and converting the manure liquid into usable biogas through fermentation, thereby converting manure resources into utilization. Then, after anaerobic fermentation, manure will produce a certain amount of biogas while producing biogas in the reaction process. The biogas will then be transported to aerobic and facultative treatment tanks. The anaerobic-anoxic-aerobic activated sludge method is used in the aerobic and facultative treatment tanks to preliminarily treat the biogas, so that various substances in the biogas that are not suitable for discharge are preliminarily treated in the aerobic and facultative treatment tanks. The treated manure liquid will then be transported to oxidation ponds, of which the oxidation ponds mainly include aerobic ponds and facultative ponds. After the manure is transported to the oxidation pond, the ammonia nitrogen and organic matter in the biogas slurry can be removed under the action of the oxidation pond, so that the biogas slurry can be treated again, and the organic matter contained in the biogas slurry can be treated more fully again. Then the treated biogas slurry will be transported to the decolorization and sterilization tank. After the biogas slurry flows into the decolorization and sterilization tank, it will be decolorized and sterilized under the action of the decolorization and sterilization tank, so that the biogas slurry is purified to a large extent, so that the harmful pathogenic microorganisms contained in the biogas slurry are eliminated, and the biogas slurry is finally treated to meet the national water quality and hygiene standards. The finally treated biogas slurry can be recycled and used for flushing water and irrigation water in daily life, and after the biogas slurry is treated, it will be input into the water storage tank. The water storage tank can store the recyclable biogas slurry, so that when water resources are needed, they can be directly withdrawn from the water storage tank, thereby realizing the flexible use of water resources.

[0033] Example 2

[0034] The difference from the above embodiment is that the grille pool is connected to the garbage storage pool through a connecting pipe.

[0035] The specific implementation process is as follows: the grate pool will carry out preliminary treatment of the large garbage contained in the manure, and the treated large garbage will be transported to the garbage storage pool. Then the garbage storage pool can store the garbage separated from the manure in time, and according to subsequent needs, the separated garbage can be reprocessed to maximize the utilization of the garbage. At the same time, the garbage separated from the manure can be collected in time through the garbage storage pool to avoid excessive separation of large garbage, which will affect the subsequent manure treatment operations.

[0036] Example 3

[0037] The difference from the above embodiment is that the solid-liquid separation tank is connected to the composting tank through a connecting pipe, and the anaerobic treatment tank is connected to the composting tank through a connecting pipe.

[0038] The specific implementation process is as follows: the solid-liquid separation tank will transport the solid manure separated from the manure to the composting tank, and then the solid manure in the composting tank will be piled up for a certain period of time to react. During the composting treatment, the manure is organically degraded under the action of microorganisms, and then converted into humus. The heat energy generated by the biochemical reaction during the composting process can kill microorganisms and parasites, thereby converting the manure into high-quality feed. At the same time, when the manure liquid is treated in the anaerobic treatment tank, a certain amount of sludge will be produced. Then, because the anaerobic treatment tank is connected to the composting tank through a connecting pipe, the sludge can be input into the composting tank for conversion reaction into organic fertilizer, thereby avoiding the waste of resources in the entire biological treatment process of manure to a large extent, so that the manure resources can be converted and utilized to a large extent.

[0039] Example 4

[0040] The difference from the above embodiment is that, basically Figure 2 As shown, the separation device includes a treatment tank 1 and a separation tank 2. The separation tank 2 is located in the treatment tank 1 and rotates with the treatment tank 1. A number of separation holes 3 are provided on the tank wall of the separation tank 2. An annular partition plate 8 is provided at the bottom of the separation tank 2. The separation tank 2 rotates with the annular partition plate 8. The annular partition plate 8 divides the interior of the treatment tank 1 into a feces collection chamber and a garbage collection chamber. The garbage collection chamber is located below the annular partition plate 8. A support column 9 is fixedly connected to the bottom of the separation tank 2. The support column 9 is located in the garbage collection chamber. The support column 9 is fixedly connected to the bottom of the treatment tank 1 at one end away from the separation tank 2. A first motor 10 is provided in the support column 9. The output shaft of the first motor 10 is fixedly connected to the center of the bottom of the separation tank 2. A feed port is provided at the bottom of the separation tank 2. A one-way valve is provided in the feed port. The feed port and the support column 9 are staggered.

[0041] A second motor 17 is fixedly connected to the top of the processing tank 1. The power of the second motor 17 is greater than that of the first motor 10. The output shaft of the second motor 17 is fixedly connected to a hollow transmission shaft 18. A hollow auxiliary ring is provided at the contact point between the transmission shaft 18 and the processing tank 1. The hollow part of the auxiliary ring is communicated with the hollow part of the transmission shaft, and a sealing sleeve is provided at the contact point between the transmission shaft 18 and the processing tank 1. A plurality of hollow stirring shafts 4 are provided on the transmission shaft 18. Scrapers 5 are provided at both ends of the stirring shaft 4. A first pump assembly 15 is provided above the second motor 17. Support frames 13 are fixedly connected to both sides of the first pump assembly 15. The support frame 13 is fixedly connected to the top of the processing tank 1 at one end away from the first pump assembly 15. The first pump The component 15 is connected to a liquid supply pipe 16, which passes through the top wall of the treatment tank 1 and is connected to the hollow part of the auxiliary ring. The hollow part of the transmission shaft 18 is connected to the hollow part of the stirring shaft 4. The hollow part of the stirring shaft 4 is provided with a plurality of nozzles 6, and the plurality of nozzles 6 are all connected to the hollow part of the stirring shaft 4. Sliders are provided on both sides of the stirring shaft 4, and the top wall of the treatment tank 1 is provided with slide rails corresponding to the sliders. The stirring shaft 4 and the treatment tank 1 are slidably matched through the sliders and the slide rails. A feed channel 19 is provided on the top of the treatment tank 1, and the feed channel 19 is connected to the separation tank 2. A discharge pipe 7 is connected to one side of the treatment tank 1, and the discharge pipe 7 is connected to the feces collection chamber. The discharge pipe 7 is connected to the solid-liquid separation tank at one end away from the treatment tank 1.

[0042] The specific implementation process is as follows: During operation, the preliminarily treated manure is input into the separation tank 2 from the feed channel 19, and then the first motor 10 and the second motor 17 are started. The power of the second motor 17 is greater than the power of the first motor 10, so the output shaft of the second motor 17 rotates faster than the output shaft of the first motor 10. Therefore, under the drive of the second motor 17, the transmission shaft 18 rotates. When the transmission shaft 18 rotates, the stirring shaft 4 will also rotate. After the stirring shaft 4 rotates, the stirring shaft 4 will continuously convect to the separation tank 2. The feces in the tank 2 are stirred and processed, thereby separating the feces into smaller states, and at the same time starting the first pump assembly 15. When the first pump assembly 15 is started, the water used for flushing will flow from the hollow part of the transmission shaft 18 to the hollow part of the stirring shaft 4 under the drive of the pump assembly, and then the water will flow to the nozzle 6, thereby supplying water to the nozzle 6, and thus the nozzle 6 will spray water into the separation tank 2. After the nozzle 6 sprays water, the nozzle 6 can flush and crush part of the feces that the stirring shaft 4 has not been able to crush, and then the feces will be crushed to a smaller diameter under the action of the stirring shaft 4 and the nozzle 6.

[0043] At the same time, when the first motor 10 is started, the separation tank 2 will rotate under the drive of the first motor 10. When the separation tank 2 rotates, a certain centrifugal force will be generated inside the separation tank 2. Then, due to the design of the separation hole 3, the feces will be driven by the centrifugal force to approach the tank wall of the separation tank 2. After being crushed, feces with a suitable diameter will flow from the separation hole 3 to the feces collection chamber to collect the feces. Then, the garbage in the feces, such as plastic and gravel, will not be crushed under the flushing of the stirring shaft 4 and the nozzle 6. Therefore, compared with the crushed feces, these garbage will be larger, and thus the garbage will not fall into the feces collection chamber through the separation hole 3. At the same time, the garbage such as gravel in the separation tank 2 will settle to the bottom of the separation tank 2 under the factor of its own gravity. Then, the one-way valve is opened, and the gravel and other garbage will flow through the material port at the bottom of the separation tank 2 to the garbage collection chamber for collection.

[0044] At the same time, the plastic garbage on the feces will float with the liquid, so the plastic garbage will float in the separation tank 2. When the plastic garbage is processed, the first motor 10 is first turned off, and then the stirring shaft 4 is driven to rotate only by the second motor 17. When the stirring shaft 4 rotates, the stirring shaft 4 can contact the floating plastic garbage, and the liquid in the separation tank 2 will slowly flow into the feces collection chamber, so that the plastic garbage will adhere to the stirring shaft 4. At the same time, the first pump assembly 15 is started, and the nozzle 6 will spray water. When the nozzle 6 sprays water, the liquid it sprays will flush the stirring shaft 4, thereby flushing the plastic garbage on the stirring shaft 4, and then the plastic garbage will flow to the material inlet at the bottom of the separation tank 2 along the flow direction of the water, so that the plastic garbage will also fall into the garbage collection chamber. The stirring shaft 4 can not only adhere to the plastic waste floating on the top of the liquid, but also contact the plastic waste floating everywhere in the liquid, thereby enabling the stirring shaft 4 to adhere to the plastic waste more fully and comprehensively, and make the plastic waste fall into the garbage collection chamber after processing.

[0045] This design allows for the separation of manure and sewage. On the one hand, the manure is reduced to a relatively small diameter, allowing it to fall smoothly into the manure collection chamber and be separated from other garbage. On the other hand, due to the different characteristics of the separated garbage, the agitator shaft 4 and the nozzle 6 coordinate to allow both sinking and floating garbage to fall into the garbage collection chamber, thereby achieving garbage collection and processing. Manure and sewage that falls into the manure treatment tank is then fed into the solid-liquid separation tank through the discharge pipe 7 for separation. Simultaneously, when the separation tank 2 rotates and generates centrifugal force, the manure flows through the separation holes 3 into the manure collection chamber under the centrifugal force. However, some larger garbage will adhere to the wall of the separation tank 2 due to the centrifugal force. Consequently, when the agitator shaft 4 rotates, the scraper 5 can pick up the garbage adhering to the inner wall of the separation tank 2. After being scraped off, the garbage will then fall through the feed port into the garbage collection chamber.

[0046] Example 5

[0047] The difference from the above embodiment is that a feed pipe 11 is provided on one side of the processing tank 1, the feed pipe 11 is connected to the garbage collection chamber, the feed pipe 11 is connected to the separation tank 2 at one end away from the processing tank 1, the separation tank 2 is connected to the garbage collection chamber through the feed pipe 11, a second pump assembly 12 is connected to the feed pipe 11, and a filter layer is provided in the end of the feed pipe 11 close to the processing tank 1.

[0048] The specific implementation process is as follows: after the garbage is collected into the garbage collection chamber, the garbage will have a certain possibility of carrying a certain amount of feces and dirt into the garbage collection chamber. Therefore, when the material in the garbage collection chamber is processed, the second pump assembly 12 is first turned on, and then, under the drive of the second pump assembly 12, the liquid and part of the feces and dirt in the garbage collection chamber will flow into the separation tank 2 along the feeding pipe 11. At the same time, due to the design of the filter layer, the garbage in the garbage collection chamber will be retained in the garbage collection chamber due to its large volume, and the liquid and feces and dirt will flow along the feeding pipe 11, thereby realizing the reprocessing of the garbage collection chamber, so that the feces and dirt can be fully utilized, avoiding the waste of feces and dirt while separating the feces and dirt.

[0049] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0050] The above is only an embodiment of the present invention. Common knowledge such as the known specific structures and characteristics in the scheme is not described in detail here. Ordinary technicians in the field are aware of all common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all existing technologies in the field, and have the ability to apply conventional experimental means before that date. Ordinary technicians in the field can improve and implement this scheme in combination with their own abilities under the inspiration given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A low-carbon biological treatment system for manure and sewage, characterized by: It includes a manure collecting tank, a grille tank, a separation device, a solid-liquid separation tank, a regulating tank, an anaerobic treatment tank, an aerobic and facultative aerobic treatment tank, an oxidation pond, a decolorization and sterilization tank, and a water storage tank, which are connected in sequence through pipelines. The separation device includes a treatment tank and a separation tank. The separation tank is located inside the treatment tank and rotates with the treatment tank. A plurality of separation holes are provided on the wall of the separation tank. An annular partition plate is provided at the bottom of the separation tank. The separation tank rotates with the annular partition plate. The annular partition plate divides the interior of the treatment tank into a feces collection chamber and a garbage collection chamber. A second motor is fixedly connected to the top of the processing tank. The power of the second motor is greater than that of the first motor. The output shaft of the second motor is fixedly connected to a hollow transmission shaft. Several hollow stirring shafts are provided on the transmission shaft. The hollow part of the transmission shaft is connected to the hollow part of the stirring shaft. Several nozzles are provided in the hollow part of the stirring shaft, and the several nozzles are all connected to the hollow part of the stirring shaft.

2. The low-carbon biological treatment system for manure and sewage according to claim 1 is characterized in that: The grille pool is connected to a garbage storage pool through a connecting pipe.

3. The low-carbon biological treatment system for manure and sewage according to claim 2, characterized in that: The garbage collection chamber is located below the annular partition plate. A support column is fixedly connected to the bottom of the separation tank. The support column is located in the garbage collection chamber. One end of the support column is away from the separation tank and is fixedly connected to the bottom of the processing tank. A first motor is provided in the support column. The output shaft of the first motor is fixedly connected to the center of the bottom of the separation tank. A feed port is provided at the bottom of the separation tank. A one-way valve is provided in the feed port. The feed port and the support column are staggered. A hollow auxiliary ring is provided at the contact point between the transmission shaft and the processing tank, and the hollow part of the auxiliary ring is connected to the hollow part of the transmission shaft. A first pump assembly is provided above the second motor, and support frames are fixedly connected on both sides of the first pump assembly. The support frame is fixedly connected to the top of the processing tank at one end away from the first pump assembly. The first pump assembly is connected to a liquid delivery pipe, and the liquid delivery pipe passes through the top wall of the processing tank and is connected to the hollow part of the auxiliary ring. Slide blocks are provided on both sides of the stirring shaft, and slide rails corresponding to the sliders are provided on the top wall of the processing tank. The stirring shaft and the processing tank are slidably matched through the sliders and the slide rails. A feed channel is provided on the top of the processing tank, and the feed channel is connected to the separation tank. A discharge pipe is connected to one side of the processing tank, and the discharge pipe is connected to the feces collection chamber. The discharge pipe is connected to the solid-liquid separation tank at one end away from the processing tank.

4. The low-carbon biological treatment system for manure and sewage according to claim 3 is characterized by: A feed pipe is provided on one side of the processing tank, which is connected to the garbage collection chamber. The feed pipe is connected to the separation tank at one end away from the processing tank. The separation tank is connected to the garbage collection chamber through the feed pipe. A second pump assembly is connected to the feed pipe, and a filter layer is provided in the feed pipe near the end of the processing tank.

5. The low-carbon biological treatment system for manure and sewage according to claim 4 is characterized in that: Both ends of the stirring shaft are provided with scrapers.

6. The low-carbon biological treatment system for manure and sewage according to claim 5, characterized in that: A sealing sleeve is provided at the contact point between the transmission shaft and the processing tank.

7. The low-carbon biological treatment system for manure and sewage according to claim 6, characterized in that: The solid-liquid separation tank is connected to the composting tank through a connecting pipe.

8. The low-carbon biological treatment system for manure and sewage according to claim 7, characterized in that: The anaerobic treatment tank is connected with the composting tank through a connecting pipe.

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