Device for livestock and poultry breeding fecal sewage treatment and resource utilization

Abstract

The utility model discloses a device for livestock and poultry breeding fecal sewage treatment and resource utilization. The device comprises a black membrane tank, a medium-temperature efficient anaerobic fermentation tower, a mud-membrane symbiotic ammoxidation unit, a deep treatment unit and a sludge dewatering machine which are connected in sequence, the black membrane tank is used for preliminary separation of fecal sewage, the medium-temperature efficient anaerobic fermentation tower and the mud-membrane symbiotic ammoxidation unit are used for decomposing organic matters in the fecal sewage and removing nitrogen and phosphorus, and the deep treatment unit is used for performing deep nitrogen and phosphorus removal on the fecal sewage. In the technology, the black membrane tank is used for pretreating the fecal sewage, the operation and maintenance are convenient, the medium-temperature efficient anaerobic fermentation tower, the mud-membrane symbiotic ammoxidation unit and the deep treatment unit are used for carrying out subsequent treatment on the fecal sewage, the treatment cost is reduced, and in the treatment process, biogas generated by the medium-temperature efficient anaerobic fermentation tower can be used as a heat supply source of the fermentation tower; sludge generated in the black membrane tank, the medium-temperature efficient anaerobic fermentation tower and the deep treatment unit is conveyed into the sludge dewatering machine to be compressed and transported outwards, and efficient operation of the device and maximum utilization of resources are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of manure treatment, and in particular to a device for treating and resource-utilizing manure and sewage from livestock and poultry breeding. Background Art

[0002] At present, for the treatment of large-scale livestock and poultry manure wastewater, the existing technology generally adopts a solid-liquid separator to pre-treat the wastewater, and uses a biofilm reactor such as a nanofiltration membrane or a reverse osmosis membrane to deeply treat the wastewater. Among them, the solid-liquid separator is prone to blockage and failure during use, and is difficult to operate and maintain. The biofilm reactor is expensive and needs to be replaced after a period of use, which has the defect of excessively high cost of use.

[0003] Therefore, the existing method of using solid-liquid separators and biofilm reactors to treat livestock and poultry manure and wastewater has technical defects such as difficult operation and maintenance and high cost. Utility Model Content

[0004] The purpose of the utility model is to propose a device for treating and recycling livestock and poultry manure wastewater, aiming to solve the technical defects of the existing technology of using solid-liquid separators and biofilm reactors to treat livestock and poultry manure wastewater, which has difficult operation and maintenance and high use costs.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a device for treating and recycling livestock and poultry manure and sewage, comprising a black film pool, a medium-temperature high-efficiency anaerobic fermentation tower, a mud film symbiotic ammonia oxidation unit, a deep treatment unit, and a sludge dewatering machine which are connected in sequence; the black film pool is used for preliminary solid-liquid separation of manure and sewage, the medium-temperature high-efficiency anaerobic fermentation tower is used for decomposing organic matter in manure and sewage and generating biogas, the mud film symbiotic ammonia oxidation unit is used for removing refractory organic matter and denitrifying and removing phosphorus in manure and sewage, and the deep treatment unit performs deep denitrification and dephosphorization on manure and sewage and Remove difficult-to-biodegrade organic matter; the mud film symbiotic ammonia oxidation unit includes a connected mud film symbiotic aerobic tank, a dynamic biofilm separation tank, and an anaerobic ammonia oxidation tank. The medium-temperature and high-efficiency anaerobic fermentation tower is connected to the mud film symbiotic aerobic tank, and the anaerobic ammonia oxidation tank is connected to the deep treatment unit; the black film tank, the medium-temperature and high-efficiency anaerobic fermentation tower, and the deep treatment unit are respectively connected to the sludge dewaterer, which compresses the waste residue in the black film tank, the waste residue in the medium-temperature and high-efficiency anaerobic fermentation tower, and the sludge in the deep treatment unit into mud cakes with low water content.

[0007] Among them, the mud film symbiotic aerobic tank and the dynamic biofilm separation tank are also connected to the medium-temperature and high-efficiency anaerobic fermentation tower through pipes respectively, and the sludge in the mud film symbiotic aerobic tank and the dynamic biofilm separation tank flows back to the medium-temperature and high-efficiency anaerobic fermentation tower through pipes.

[0008] Among them, the deep treatment unit includes a sulfur autotrophic denitrification tank, an ozone catalytic oxidation tank, and an electrolytic dephosphorization tank which are connected in sequence; the anaerobic ammonia oxidation tank is connected to the sulfur autotrophic denitrification tank; and the electrolytic dephosphorization tank is connected to the sludge dewatering machine.

[0009] The utility model also comprises a sterilization and disinfection pool, which is connected with the electrolytic dephosphorization pool.

[0010] Among them, the black film pool includes: a pool pit, a black film pool body installed in the pool pit, an exhaust pipe, a drain pipe, and a slag discharge pipe. The black film pool body includes an anti-seepage ground film and a top film. The anti-seepage ground film and the top film form an enclosed space. The anti-seepage ground film is laid in the pool pit; multiple exhaust pipes are arranged through the top film; the drain pipe is connected to the middle part of the black film pool body; the slag discharge pipe is connected to the bottom of the black film pool body.

[0011] Preferably, a plurality of water pipes for pressing the top membrane downward are provided on the upper side of the top membrane so that the top membrane forms a concave surface.

[0012] Among them, the medium-temperature and high-efficiency anaerobic fermentation tower includes a tower body, in which a gas collecting area, a clarification area, a filling area and a sludge layer are arranged from top to bottom. The filling area is filled with modified biological carriers, biofilms and granular sludge. A liquid inlet is arranged at the bottom of the tower body, a liquid outlet is arranged at a position corresponding to the clarification area on the side wall of the tower body, and a gas outlet is arranged at the top of the tower body.

[0013] Preferably, a sedimentation tank is also provided next to the medium-temperature and high-efficiency anaerobic fermentation tower, and the liquid outlet of the medium-temperature and high-efficiency anaerobic fermentation tower is connected to the inlet of the sedimentation tank, and the outlet of the sedimentation tank is connected to the liquid inlet of the medium-temperature and high-efficiency anaerobic fermentation tower to realize circulating sludge discharge, and the supernatant in the sedimentation tank enters the system again from the liquid inlet of the medium-temperature and high-efficiency anaerobic fermentation tower, thereby increasing the rising flow rate by increasing the water inlet flow rate.

[0014] Among them, a sludge concentration tank is also provided between the electrolytic dephosphorization tank and the sludge dewatering machine.

[0015] Preferably, the sludge dewatering machine is a plate and frame filter press or a screw press.

[0016] In this technology, a black film pool is used to perform preliminary solid-liquid separation on livestock and poultry manure and wastewater, which is easy to operate and maintain. A medium-temperature and high-efficiency anaerobic fermentation tower, a mud film symbiotic ammonia oxidation unit, and a deep treatment unit are used for subsequent treatment of the manure and wastewater. The medium-temperature and high-efficiency anaerobic fermentation tower, the mud film symbiotic ammonia oxidation unit, and the deep treatment unit can be used for a long time and in a circular manner, which reduces the treatment cost of manure and wastewater and realizes the efficient operation of the device and the maximum utilization of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of a device for treating and recycling livestock and poultry manure and sewage disclosed in an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the black film pool disclosed in the embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of a medium-temperature high-efficiency anaerobic fermentation tower disclosed in an embodiment of the utility model;

[0021] Among them: 1. Black film pool; 11. Pool pit; 12. Black film pool body; 121. Anti-seepage ground film; 122. Top film; 13. Exhaust pipe; 14. Drain pipe; 15. Slag pipe; 16. Water pipe; 2. Medium temperature high efficiency anaerobic fermentation tower; 21. Tower body; 211. Gas collection area; 212. Clarification area; 213. Filling area; 214. Sludge layer; 215. Liquid inlet; 216. Liquid outlet; 217. Outlet Gas outlet; 3. Mud film symbiotic ammonia oxidation unit; 31. Mud film symbiotic anoxic tank; 32. Dynamic biofilm separation tank; 33. Anaerobic ammonia oxidation tank; 4. Deep treatment unit; 41. Sulfur autotrophic denitrification tank; 42. Ozone catalytic oxidation tank; 43. Electrolytic dephosphorization tank; 5. Sterilization and disinfection tank; 6. Recycled water storage tank; 7. Sludge concentration tank; 8. Sludge dewatering machine; 9. Sedimentation tank; 91. Import; 92. Export; DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] The utility model discloses a device for treating livestock and poultry manure and sewage and recycling it as a resource. Figure 1-3As shown, it includes a black film pool 1, a medium-temperature and high-efficiency anaerobic fermentation tower 2, a sludge film symbiotic ammonia oxidation unit 3, a deep treatment unit 4, and a sludge dewatering machine 8 which are connected in sequence; wherein the black film pool 1 is an ultra-large anaerobic bioreactor for manure and sewage, which can effectively remove COD in manure and sewage, and is used for the preliminary treatment and solid-liquid separation of aquaculture manure and sewage. In this embodiment, the aquaculture manure and sewage are directly introduced into the black film pool 1 for treatment, and the manure and sewage undergo hydrolysis and acidification reactions in the black film pool 1, so that the preliminary solid-liquid separation of aquaculture manure and sewage can be achieved; the manure and sewage treated by the black film pool 1 enters the medium-temperature and high-efficiency anaerobic fermentation tower 2 for anaerobic fermentation, and during the fermentation process, biogas is generated in the medium-temperature and high-efficiency anaerobic fermentation tower 2, which can be used as heat supply for the medium-temperature and high-efficiency anaerobic fermentation tower 2. Source; the mud film symbiotic ammonia oxidation unit 3 includes a connected mud film symbiotic aerobic tank 31, a dynamic biofilm separation tank 32, and an anaerobic ammonia oxidation tank 33; the medium-temperature and high-efficiency anaerobic fermentation tower 2 is connected to the mud film symbiotic aerobic tank 31, and the anaerobic ammonia oxidation tank 33 is connected to the deep treatment unit 4; the black film tank, the medium-temperature and high-efficiency anaerobic fermentation tower, and the deep treatment unit are respectively connected to the sludge dewatering machine, and the waste residue in the black film tank and the medium-temperature and high-efficiency anaerobic fermentation tower and the sludge produced in the deep treatment unit enter the sludge dewatering machine and are compressed into sludge with a low water content, which can be made into organic fertilizer or directly transported out, and the water produced by the sludge dewatering machine can be returned to the medium-temperature and high-efficiency anaerobic fermentation tower 2 for use; in the present technology, the sludge dewatering machine is a plate and frame filter press or a screw press.

[0027] Among them, the mud film symbiotic anoxic tank 31 and the dynamic biofilm separation tank 32 are also connected to the medium-temperature and high-efficiency anaerobic fermentation tower 2 through pipelines, and the sludge in the mud film symbiotic anoxic tank 31 and the dynamic biofilm separation tank 32 flows back to the medium-temperature and high-efficiency anaerobic fermentation tower 2 through pipelines.

[0028] Specifically, the sludge film symbiotic aerobic tank 31 is a conventional A2O process aeration tank in which biological carriers are added. Microorganisms attach to the biological carriers to form a suspended (activated sludge)-attached (biofilm) microbial symbiotic biochemical reaction system. It combines the advantages of stable operation and high volumetric load of the biofilm method, while retaining the advantages of the activated sludge method such as good effluent quality and good nitrogen and phosphorus removal effects, thereby increasing the total amount of microorganisms in the reaction tank within a limited volume.

[0029] Specifically, the dynamic biofilm separation tank 32 is a tank body in which a dynamic biofilm plate is placed. The microorganisms are rapidly aggregated and attached to the dynamic biofilm plate through microbial population sensing control technology to form a high-density biofilter. The filtering function of the biofilter itself can effectively separate organic microbial solids and other suspended solids, effectively improving the solid-liquid separation effect of the dynamic biofilm separation tank 32. In addition, the biofilter has a good enrichment effect on pollutants and can greatly improve the removal rate of difficult-to-degrade pollutants.

[0030] Specifically, the anaerobic ammonia oxidation tank 33 is to place ammonia oxidizing bacteria, anaerobic ammonia oxidizing bacteria and silicon-carbon fillers in the tank body, and realize short-range nitrification and anaerobic ammonia oxidation at the same time under the premise of controlling the surface dissolved oxygen, and realize efficient denitrification of fecal sewage. In the anaerobic ammonia oxidation tank 33, the microbial population sensing control technology is used to control the attachment, aggregation and disaggregation of microorganisms through microenvironment regulation, realize the symbiosis of nitrite bacteria and anaerobic ammonia oxidizing bacteria, and improve the denitrification and phosphorus removal effect of fecal sewage. After the system is stably operated, the anaerobic ammonia oxidizing bacteria will form a granular sludge structure around the granular filler, and a stable anaerobic ammonia oxidation reaction will be generated through the synergistic effect of ammonia oxidizing bacteria (AOB) and anaerobic ammonia oxidizing bacteria (AnAOB). Under the condition of low carbon source, nitrite is used as an electron acceptor to directly convert ammonia nitrogen into nitrogen gas. The anaerobic ammonia oxidation tank 33 has the advantages of low energy consumption, no need for external carbon source, high denitrification efficiency, stable and reliable operation, and strong resistance to shock loads.

[0031] Among them, the deep treatment unit 4 includes a sulfur autotrophic denitrification tank 41, an ozone catalytic oxidation tank 42, and an electrolytic dephosphorization tank 43 which are connected in sequence. The anaerobic ammonia oxidation tank 33 is connected to the sulfur autotrophic denitrification tank 41; the sulfur autotrophic denitrification tank 41 is used for deep denitrification of fecal sewage. The sulfur autotrophic denitrification tank 41 is filled with pyrite, sulfur and other sulfur source auxiliary materials and limestone. The fecal sewage treated by the anaerobic ammonia oxidation tank 33 flows into the sulfur autotrophic denitrification tank 41, and the fecal sewage can be deeply denitrified under anaerobic and aerobic alternating conditions; the ozone catalytic oxidation tank 42 can treat the difficult-to-degrade organic matter in the fecal sewage, and use ozone molecules to generate a large number of hydroxyl free radicals on the catalyst surface to oxidize the difficult-to-degrade organic matter in the fecal sewage; the electrolytic dephosphorization tank 43 treats the phosphorus-containing substances contained in the fecal sewage, and uses the Fe released by the anode during the electrolysis process to 2+ , Fe 3+ It will react with phosphate to form insoluble iron salts, some of which are Fe 2+ and Fe 3+ In a certain pH range, it reacts with OH in the solution - The reaction generates an insoluble iron hydroxy complex, which can undergo colloidal flocculation, thereby achieving the flocculation and precipitation effect of suspended matter in the electrolytic dephosphorization tank; the electrolytic dephosphorization tank 43 is connected to the sludge dewatering machine 8, and the sludge in the electrolytic dephosphorization tank 43 enters the sludge dewatering machine 8 for treatment.

[0032] The utility model also includes a sterilization and disinfection pool 5, which is connected to the electrolytic dephosphorization pool 43. The sterilization and disinfection pool 5 uses ozone combined with ultraviolet rays to disinfect the fecal sewage, which can effectively kill microorganisms in the fecal sewage and achieve the effect of deodorization. The fecal sewage treated by the sterilization and disinfection pool 5 can be discharged after meeting the standards, or stored in the reclaimed water storage pool 6.

[0033] The black film pool 1 includes: a pool pit 11, a black film pool body 12 installed in the pool pit, an exhaust pipe 13, a drain pipe 14, and a slag discharge pipe 15. The black film pool body 12 includes an impermeable ground film 121 and a top film 122. The impermeable ground film 121 and the top film 122 form a closed space. The impermeable ground film 121 is laid in the pool pit 11. The impermeable ground film 121 is a high-density polyethylene impermeable ground film, and the top film 122 is a high-density polyethylene top film, which has a good thermal insulation effect. The black film pool body 12 is an underground pool body, which has good thermal insulation, can reduce the impact of external temperature changes on the black film pool body 12, and has It has excellent impact load resistance; multiple exhaust pipes 13 are arranged through the top film 122. During the reaction process, biogas will be generated in the black film pool 1. The exhaust pipes 13 can discharge the biogas in the black film pool 1 in time. At the same time, the temperature inside the black film pool 1 is adjusted or inhibitors such as limestone are added in time to prevent the black film pool 1 from producing too much biogas; the drain pipe 14 is connected to the middle part of the black film pool body 12, and the drain pipe 14 is used to discharge the upper liquid in the black film pool body 12; the slag discharge pipe 15 is connected to the bottom of the black film pool body 12, and the slag discharge pipe 15 is used to discharge the lower sediment in the black film pool body 12.

[0034] Specifically, a plurality of water pipes 16 for pressing the top membrane 122 downward are provided on the upper side of the top membrane 122. The water pipes 16 form a concave surface of the top membrane 122. By passing water into the water pipes 16 and controlling the amount of water in the water pipes, the top membrane 122 will no longer bulge. When the black film pool 1 is used in coastal areas, it can effectively prevent the influence of typhoons on the top membrane 122.

[0035] Among them, the medium-temperature and high-efficiency anaerobic fermentation tower 2 includes a tower body 21, and the tower body 21 is provided with a gas collecting area 211, a clarifying area 212, a filling area 213, and a sludge layer 214 from top to bottom. The filling area 213 is filled with modified biological carriers, biofilms, granular sludge, and microorganisms. A liquid inlet 215 is provided at the bottom of the tower body 21, and a liquid outlet 216 is provided at a position corresponding to the clarifying area 212 on the side wall of the tower body 21. A gas outlet 217 is provided at the top of the tower body 21. During operation, the fecal sewage treated by the black film pool 1 enters the bottom of the medium-temperature and high-efficiency anaerobic fermentation tower 2 through the liquid inlet 215, and the fecal sewage rises into the filling area 213. The modified biological carriers, microorganisms, biofilms and granular sludge in the filling area 213 work synergistically to form an anaerobic mud film symbiotic system, which can efficiently remove organic matter in the fecal sewage and improve the comprehensive treatment efficiency of the fecal sewage.

[0036] Specifically, a sedimentation tank 9 is further provided on the side of the medium-temperature and high-efficiency anaerobic fermentation tower 2, and a liquid outlet 216 of the medium-temperature and high-efficiency anaerobic fermentation tower 2 is connected to an inlet 91 of the sedimentation tank 9, and an outlet 92 of the sedimentation tank 9 is connected to a liquid inlet 215 of the medium-temperature and high-efficiency anaerobic fermentation tower 2 to realize circulating sludge discharge; during operation, the liquid in the clarification zone 212 of the medium-temperature and high-efficiency anaerobic fermentation tower 2 flows into the sedimentation tank 9 through the liquid outlet 216, and the suspended matter in the clarification zone 212 is precipitated in the sedimentation tank 9, and the supernatant in the sedimentation tank 9 enters the medium-temperature and high-efficiency anaerobic fermentation tower 2 again from the liquid inlet 215 of the medium-temperature and high-efficiency anaerobic fermentation tower 2. By increasing the liquid inlet flow rate, the rising flow rate of the fecal sewage in the medium-temperature and high-efficiency anaerobic fermentation tower 2 can be increased, and the fecal sewage treatment efficiency of the medium-temperature and high-efficiency anaerobic fermentation tower 2 can be improved.

[0037] A sludge concentration tank 7 is provided between the electrolytic dephosphorization tank 43 and the sludge dewatering machine 8. The sludge in the sludge concentration tank 7 can be mixed with waste residue to produce organic fertilizer.

[0038] In a specific embodiment, the device is used to treat manure and sewage in a pilot experiment. Specifically, high-concentration manure and sewage from aquaculture enters the black film pool for preliminary solid-liquid separation. The manure and sewage treated in the black film pool 1 enters the medium-temperature high-efficiency anaerobic fermentation tower 2 for anaerobic fermentation to remove organic matter in the manure and sewage. Subsequently, the manure and sewage enter the mud film symbiotic anoxic pool 31, the dynamic biofilm separation pool 32, and the anaerobic ammonia oxidation pool 33 in turn for treatment, and most of the difficult-to-degrade organic matter in the manure and sewage is removed; the manure and sewage treated by the mud film symbiotic ammonia oxidation unit 3 flows into the deep treatment unit 4, and the sulfur autotrophic denitrification pool 41, the ozone catalytic oxidation pool 42, and the electrolytic dephosphorization pool 43 can deeply denitrify and remove phosphorus from the manure and sewage; the manure and sewage treated by the deep treatment unit 4 enters the sterilization and disinfection pool 5 for sterilization and disinfection treatment, and the obtained manure and sewage can be discharged after meeting the standards. The various index values ​​of the manure and sewage after being treated by this device and the various index values ​​of the manure and sewage before treatment are shown in Table 1.

[0039] Table 1 The values ​​of various indicators in the sewage before and after the treatment of aquaculture manure sewage using this device

[0040]

[0041] The technical solution discloses a device for treating and recycling livestock and poultry manure and sewage, comprising a black film pool, a medium-temperature and high-efficiency anaerobic fermentation tower, a mud film symbiotic ammonia oxidation unit, a deep treatment unit, and a sludge dewatering machine connected in sequence; the black film pool is used for the preliminary solid-liquid separation of manure and sewage, the medium-temperature and high-efficiency anaerobic fermentation tower is used for the preliminary separation of organic matter in manure and sewage and the production of biogas, the mud film symbiotic ammonia oxidation unit is used for removing refractory organic matter in manure and sewage, and the deep treatment unit performs deep denitrification and dephosphorization on manure and sewage. In this technology, a black film pool is used to perform preliminary solid-liquid separation on livestock and poultry manure and sewage, which is easy to operate and maintain. A medium-temperature and high-efficiency anaerobic fermentation tower, a mud film symbiotic ammonia oxidation unit, and a deep treatment unit are used to perform subsequent treatment on the manure and sewage. The medium-temperature and high-efficiency anaerobic fermentation tower, the mud film symbiotic ammonia oxidation unit, and the deep treatment unit can be used for a long time and in a circular manner, thereby reducing the treatment cost of manure and sewage. During the treatment process, biogas produced in the medium-temperature and high-efficiency anaerobic fermentation tower can be used as a heating source. The sludge produced in the black film pool, the medium-temperature and high-efficiency anaerobic fermentation tower, and the deep treatment unit is transported to a sludge dewatering machine for compression and external transportation, thereby achieving efficient operation of the device and maximum utilization of resources, and providing a more economical, feasible, and sustainable sewage treatment solution for large-scale livestock and poultry farming.

[0042] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A device for treating and recycling livestock and poultry manure and sewage, characterized in that: It includes a black film pool, a medium-temperature high-efficiency anaerobic fermentation tower, a mud film symbiotic ammonia oxidation unit, a deep treatment unit, and a sludge dewatering machine connected in sequence; the black film pool is used for the preliminary solid-liquid separation of fecal sewage, the medium-temperature high-efficiency anaerobic fermentation tower is used for the decomposition of organic matter in fecal sewage and the production of biogas, the mud film symbiotic ammonia oxidation unit is used for removing refractory organic matter and denitrifying and removing phosphorus from fecal sewage, and the deep treatment unit performs deep denitrification and dephosphorization on fecal sewage; The mud film symbiotic ammonia oxidation unit includes a connected mud film symbiotic anoxic tank, a dynamic biofilm separation tank, and an anaerobic ammonia oxidation tank. The medium-temperature high-efficiency anaerobic fermentation tower is connected to the mud film symbiotic anoxic tank, and the anaerobic ammonia oxidation tank is connected to the deep treatment unit. The black film pool, medium-temperature high-efficiency anaerobic fermentation tower and deep processing unit are respectively connected to the sludge dewatering machine, which compresses the waste residue in the black film pool, the waste residue in the medium-temperature high-efficiency anaerobic fermentation tower and the sludge in the deep processing unit into mud cakes with low water content.

2. The device for treating and recycling livestock and poultry manure wastewater according to claim 1 is characterized in that: The mud film symbiotic anoxic tank and the dynamic biofilm separation tank are also connected to the medium-temperature high-efficiency anaerobic fermentation tower through pipelines, and the sludge in the mud film symbiotic anoxic tank and the dynamic biofilm separation tank flows back to the medium-temperature high-efficiency anaerobic fermentation tower through pipelines.

3. The device for treating and recycling livestock and poultry manure wastewater according to claim 1 is characterized in that: The deep treatment unit includes a sulfur autotrophic denitrification tank, an ozone catalytic oxidation tank, and an electrolytic dephosphorization tank which are connected in sequence. The anaerobic ammonia oxidation tank is connected to the sulfur autotrophic denitrification tank; and the electrolytic dephosphorization tank is connected to a sludge dewatering machine.

4. The device for treating and recycling livestock and poultry manure wastewater according to claim 3 is characterized in that: It also includes a sterilization and disinfection pool, which is connected to the electrolytic dephosphorization pool.

5. The device for treating and recycling livestock and poultry manure wastewater according to claim 1 is characterized in that: The black film pool includes: a pool pit, a black film pool body installed in the pool pit, an exhaust pipe, a drain pipe, and a slag discharge pipe. The black film pool body includes an impermeable ground film and a top film. The impermeable ground film and the top film form an enclosed space. The impermeable ground film is laid in the pool pit; a plurality of exhaust pipes are arranged through the top film; the drain pipe is connected to the middle part of the black film pool body; the slag discharge pipe is connected to the bottom of the black film pool body.

6. The device for treating and recycling livestock and poultry manure wastewater according to claim 5, characterized in that: A plurality of water pipes are also provided on the upper side of the top membrane for pressing the top membrane downward so that the top membrane forms a concave surface.

7. The device for treating and recycling livestock and poultry manure and sewage according to claim 1 is characterized in that: The medium-temperature high-efficiency anaerobic fermentation tower comprises a tower body, in which a gas collecting area, a clarifying area, a filling area and a sludge layer are arranged from top to bottom, the filling area is filled with modified biological carriers and granular sludge, a liquid inlet is arranged at the bottom of the tower body, a liquid outlet is arranged at a position corresponding to the clarifying area on the side wall of the tower body, and a gas outlet is arranged at the top of the tower body.

8. The device for treating and recycling livestock and poultry manure wastewater according to claim 7, characterized in that: A sedimentation tank is also provided next to the medium-temperature and high-efficiency anaerobic fermentation tower. The liquid outlet of the medium-temperature and high-efficiency anaerobic fermentation tower is connected to the inlet of the sedimentation tank, and the outlet of the sedimentation tank is connected to the liquid inlet of the medium-temperature and high-efficiency anaerobic fermentation tower to realize circulating sludge discharge. The supernatant in the sedimentation tank enters the system again from the liquid inlet of the medium-temperature and high-efficiency anaerobic fermentation tower, and the rising flow rate is increased by increasing the water inlet flow rate.

9. The device for treating and recycling livestock and poultry manure wastewater according to claim 1, characterized in that: A sludge thickening tank is also provided between the electrolytic dephosphorization tank and the sludge dewatering machine.

10. The device for treating and recycling livestock and poultry manure and sewage according to claim 1, characterized in that: The sludge dewatering machine is a plate and frame filter press or a screw press.

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