Pig farm wastewater treatment facility and system integrating efficient deodorization and ecological landscape

Abstract

The application is a pig farm wastewater treatment facility and system integrating efficient deodorization and ecological landscape, the technology constructs clear zoning of underwater anaerobic and water surface aerobic, and innovatively designs a surface water body convergence network to optimize the surface water flow path, strengthen the water body exchange rate, and accelerate the construction of the surface aerobic area microbial system. At the same time, the plant system is deeply integrated into the whole process of wastewater treatment process, which forms a good on-site landscape, effectively intercepts, absorbs and converts odor gas, and improves the environment of the site. The treatment device of the application is very simple, has no operation cost, fundamentally solves the odor problem in the process of pig farm wastewater treatment, and realizes the systematic improvement of environmental friendliness and sensory effect on the basis of ensuring efficient treatment effect.

Description

Technical Field

[0001] This invention relates to the field of pig farm wastewater treatment, particularly to pig farm wastewater treatment facilities and systems for removing odors and improving the landscape. Background Technology

[0002] my country's total pig farming output remains high, and the pressure to control pollution from pig farming is becoming increasingly prominent. Pig farms not only discharge wastewater containing high levels of organic matter, ammonia nitrogen, and suspended solids, but also produce large amounts of malodorous gases. Among these, malodorous gases generated during waste treatment and utilization account for 65% of the total malodorous gas produced by pig farms. Of all environmental complaints involving pig farms, those related to odor pollution account for as high as 90%, making it one of the core pain points hindering the sustainable development of the industry and affecting the harmonious coexistence of pig farms and surrounding residents.

[0003] Currently, mainstream wastewater treatment processes in pig farms (anaerobic digestion, sequencing batch reactors, and advanced oxidation processes, etc.) typically rely on high-intensity external energy input (such as mechanical reoxygenation, forced stirring, and heating) to enhance mass transfer and biochemical reactions. These processes are very costly to operate, and most require steps such as filtration, stirring, and mechanical aeration, causing large amounts of odors and pathogens to be released into the air, resulting in discomfort. Traditional waste gas treatment often employs independent biological filters, activated carbon adsorption, or chemical scrubbing processes, requiring separate waste gas collection systems and treatment facilities. The long-term addition of chemical agents or replacement of adsorption materials places a heavy environmental cost burden on farmers, severely restricting their initiative in pollution control and making it difficult to guarantee the long-term stable operation of environmental protection facilities. For example: Patents (CN106824972A), (CN106116736A), and (CN104743747A) all integrate units such as source separation, solid-liquid separation, high-temperature aerobic fermentation or domestic treatment, and odor and flue gas purification and recovery, to achieve the reduction, harmlessness, and resource utilization of pollutants. However, such systems generally have the following common drawbacks in odor treatment: (1) high construction and operation costs and high energy demand for odor collection and treatment facilities; (2) secondary pollution such as waste liquid and waste gas is generated during the treatment process, and the treatment effect is unstable.

[0004] Patent (CN120309110A) discloses a system for removing ammonia and hydrogen sulfide from septic tank sewage. It proposes constructing a self-absorption system with a high air-to-water ratio above the septic tank, combining photocatalysis and negative ion deodorization technologies, and integrating the oxygen-producing capacity of Chlorella photosynthesis to achieve odor removal. However, the following limitations still exist in practical applications: (1) Complex structure construction: It is necessary to build a light-transmitting frame above the sewage tank, which includes a photosynthetic oxygen production system and a double-sided binary deodorization system. The sewage tank and the water in the frame are driven by a circulating pump, and the gas-liquid contact area is increased by spraying water with a submersible pump.

[0005] (2) Poor resistance to shock of microorganisms: During the cultivation of Chlorella, the ammonia nitrogen concentration in the photobioreactor needs to be lower than 50 mg / L, which is far lower than the ammonia nitrogen concentration in the actual pig farm wastewater, and relies on tap water or low-concentration water for dilution.

[0006] (3) Low treatment efficiency: For low-concentration pig farm wastewater with COD concentration of 300-2000 mg / L, after 24-72 hours of treatment of the escaping gas, the ammonia content is 2.31-9.88 mg / m³. 3 It is far higher than the 1.5 mg / m³ specified in the Class II standard of the "Odor Pollutant Emission Standard" (GB 14554-93). 3 Limit requirements: Hydrogen sulfide content is 0.24–8.89 mg / m³. 3 It is far higher than the 0.06 mg / m³ specified in the Class II standard of the "Odor Pollutant Emission Standard" (GB 14554-93). 3 The limit requirements still necessitate secondary processing.

[0007] On the other hand, plant systems, which combine advantages such as water purification, odor adsorption, and ecological restoration, have been widely used in the field of water treatment. However, plant systems are mainly suitable for aquatic environments with low concentrations, high flow rates, and alternating wet and dry conditions. Their tolerance to pollution loads has clear physiological boundaries, limiting their application in the treatment of high-concentration wastewater. Practice has shown that when the COD concentration in wastewater exceeds 300 mg / L and the ammonia nitrogen concentration is higher than 50 mg / L, herbaceous plants such as tall fescue, white clover, and bermudagrass exhibit root hypoxia, yellowing leaves, and even plant death. Especially for typical high-concentration organic wastewater such as pig farm wastewater, the COD concentration is usually as high as 5000–20000 mg / L and the ammonia nitrogen concentration is 500–1500 mg / L, far exceeding the tolerance threshold of the aforementioned plants. Patent (CN121894873A) discloses a method for treating wastewater from pig farms, as well as a wastewater treatment membrane and system. This method enhances the synergistic physical-chemical-biological removal of pollutants at different water depths through artificially layered reaction zones. However, the system's aerobic environment is not yet fully developed, its structure cannot support the construction of a landscape system, and it lacks targeted measures for odor control.

[0008] Therefore, there is an urgent need to develop a pig farm wastewater treatment system that is simple in structure, easy to use, and cost-effective, integrating efficient odor removal and ecological landscape construction. Summary of the Invention

[0009] To address the aforementioned technical problems, this invention provides a pig farm wastewater treatment facility and system that integrates efficient deodorization and ecological landscaping.

[0010] The efficient deodorizing pig farm wastewater treatment facility of the present invention includes: several membrane components that are horizontally floating on the surface of the water body, and several longitudinal membranes that are perpendicular to the water flow direction and longitudinally arranged in the water. There are flow gaps between the mesh assemblies and between the mesh assemblies and the longitudinal mesh; The membrane assembly has several water flow channels, and there are protrusions on both sides of the water flow channels that are above the water surface. The water flow channels are connected to the water flow gap. The water channels, protrusions, and gaps are used to create a continuous aerobic environment on the surface of the water body and an anaerobic environment below the surface. It has a flow network for collecting surface water to the effluent of the treatment tank; the flow channels and flow gaps therein constitute part of the flow network of the surface water.

[0011] The highly efficient deodorizing pig farm wastewater treatment facility described above includes a membrane assembly that covers more than 80% of the surface area of ​​the treatment tank.

[0012] The highly efficient deodorizing pig farm wastewater treatment facility described above, wherein the membrane assembly includes a water surface mesh and buoyancy components; The water surface mesh is used to allow water below the membrane assembly to permeate to the top of the membrane assembly, and to intercept pollutants during the permeation process; The buoyancy component is used to make the water surface mesh float on the water surface; the buoyancy component is a foam frame, which is composed of several protruding strips and several connecting ribs; the protruding strips are used to support the water surface mesh, so that the water surface mesh above the protruding strips forms a protrusion; the water surface mesh between two protruding strips forms the water flow channel, which is below the water surface and extends to the edge of the mesh; the connecting ribs are used to connect the protruding strips. Several foam frames form a foam frame row, and a water surface mesh is placed on top of the foam frame row and fixed, so that the mesh assembly forms a mesh row, and the length direction of the mesh row is perpendicular to the water flow direction in the treatment tank.

[0013] The efficient deodorizing pig farm wastewater treatment facility described above, wherein the longitudinal mesh is composed of anchor ropes, buoyancy rods floating on the water surface, and longitudinal mesh fabric hanging in the water; the buoyancy rods are columnar foams with through holes in the middle for the anchor ropes to pass through; the anchor ropes string together several sections of buoyancy rods, and the two ends are anchored to the treatment pool embankment; the upper edge of the longitudinal mesh fabric is wrapped around the buoyancy rods and tied and fixed. It also has vertical edges, which are formed by the portion of the water surface mesh that exceeds the width of the foam frame and hangs down into the water from both sides of the buoyancy frame; the vertical edges and the water surface mesh form a three-sided enclosing cavity for the water. Longitudinal meshes and vertical edges are used to provide biofilm attachment and to intercept pollutants in flowing water.

[0014] The efficient deodorizing pig farm wastewater treatment facility described above includes a mesh membrane assembly and longitudinal mesh membranes arranged alternately in the treatment tank, with the mesh membrane assembly positioned between two longitudinal mesh membranes; the mesh membrane assemblies are spaced 5cm to 10cm apart from each other and from each other to the longitudinal mesh membranes, serving as the water flow gap. The longitudinal mesh consists of deep mesh and shallow mesh. The longitudinal mesh of the deep mesh hangs down to the bottom of the pool, while the longitudinal mesh of the shallow mesh hangs down to more than 1 / 3 of the way up from the bottom of the water. Several deep meshes and several shallow meshes are arranged in the treatment pool.

[0015] The highly efficient deodorizing pig farm wastewater treatment facility described above, wherein buoyancy rods form a barrier against pollutants on the water surface; Each row of longitudinal mesh has at least one notch in its buoyancy bar, with a notch width of 5cm to 10cm; the notch is connected to the water flow gap and forms part of the confluence network.

[0016] The present invention provides a pig farm wastewater treatment facility that integrates efficient deodorization and ecological landscape. Specifically, in the efficient deodorization pig farm wastewater treatment facility, a plant system is set on some membrane components to absorb water nutrients, intercept odors and provide an ecological landscape.

[0017] The aforementioned pig farm wastewater treatment facility, which integrates efficient deodorization and ecological landscape, includes a plant system comprising a plant growth substrate layer and plants, with the substrate layer laid on a water surface netting. A ring of plants with a width of 0.5m to 1.5m is planted on the water surface netting near the treatment pond embankment; in the middle of the treatment pond, a row of plants is set at intervals of several rows of netting components; the plants include one or a combination of bermudagrass, clover, zinnia, datura, and tall fescue. The substrate layer is nutrient soil laid on top of the water surface netting, and part of the nutrient soil in the substrate layer is in the water flow channel to absorb water and nutrients.

[0018] The pig farm wastewater treatment system provided by the present invention is equipped with multiple treatment tanks, and reinforced channels are set between the treatment tanks. The treatment ponds include a high-concentration treatment pond that is directly connected to the pig farm's wastewater discharge outlet, a reinforcement channel downstream of the high-concentration treatment pond, and a low-concentration treatment pond downstream of the reinforcement channel. Each high-concentration treatment tank can be a multi-stage treatment tank, and each low-concentration treatment tank can be a multi-stage treatment tank. The processing pool is at least one of the following: The treatment pond is equipped with the aforementioned highly efficient deodorizing pig farm wastewater treatment facilities, which integrate highly efficient deodorization and ecological landscaping.

[0019] Specifically, the reinforced channel has a cross-sectional area of ​​less than 1m². 2 The water channel has several intercepting nets perpendicular to the water flow direction, and a horizontal carrier net is set between two intercepting nets, which is always kept no more than 10 cm below the water surface as the water level changes. Biological filler is spread on the horizontal carrier net to establish an anaerobic environment at the bottom and an aerobic environment at the surface. The enhanced channel is composed of several channel sections arranged side by side, connecting the surface of the upstream enhanced channel with the bottom of the next enhanced channel, so that the water can be repeatedly settled and the surface water can enter the downstream.

[0020] Technical effects: 1. Effective Odor Control: When treating pig farm wastewater, the odor concentration at the farm boundary is less than 10 (dimensionless), and the ammonia concentration is 0.06–1.13 mg / m³. 3 The hydrogen sulfide concentrations were all less than 0.001 mg / m³. 3 The emissions are far below the emission standards. Feedback from approximately 300 people has been collected, all indicating that the application of this technology has resulted in excellent sensory effects at the site, no noticeable odor, and a significant improvement in the quality of life for nearby residents.

[0021] 2. Achieving Efficient Treatment and Landscape Integration: Breaking away from the stereotypical image of reinforced concrete buildings at traditional pig farm wastewater treatment sites, plant landscape elements are integrated into the entire treatment process. Ecological landscapes are constructed in accordance with local conditions, extending the regional ecological chain and improving the environmental quality of the plant area and its surroundings. Through the synergistic effect of plants such as bermudagrass and clover with biofilm, a triple benefit is achieved: improving wastewater odor, reducing wastewater concentration, and forming a stable vegetation landscape, resulting in a dual improvement in environmental friendliness and visual appeal.

[0022] 3. Simple structure: It integrates odor treatment system, landscape configuration and sewage treatment system. It relies on biological oxygen production and natural reoxygenation to create an aerobic area and relies on gravitational potential energy to realize sewage flow. There are no complex mechanical equipment such as aerators and water pumps. The system structure is simple.

[0023] 4. Low cost: The simple building structure and device operation mode effectively reduce the cost of operation and maintenance and manpower input, and the daily operation and maintenance cost is extremely low. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structural units of this system, showing the connection structure of multiple processing pools and the reinforcement pools set between the processing pools; Figure 2 Set up the structure for the processing pool in Example 2; Figure 3 A schematic diagram of a scheme for setting up a plant system in the treatment tank; Figure 4 A schematic diagram showing the structure of the treatment tank in Example 3, the membrane components in the treatment tank, and the longitudinal distribution of the membrane; Figure 5 This is a schematic diagram showing the longitudinal distribution of the membrane components, longitudinal membrane, and plant system in the water body within the treatment tank. Figure 6 This is a schematic diagram of the membrane assembly structure; Figure 7 This is a schematic diagram of a buoyancy frame structure; Figure 8 This is a schematic diagram of a longitudinal mesh structure; Figure 9 This is a schematic diagram of the enhanced pool structure.

[0025] Among them, inlet 1; outlet 2; mesh assembly 3; longitudinal mesh 4; plant system 5; notch 6; foam frame 7; connecting rib 8; protruding strip 9; biological filler 10; anchor rope 11; longitudinal mesh 12; buoyancy rod 13; water surface mesh 14; water flow channel 15; vertical edge 16; sealing round pipe 20; reinforced channel 21; horizontal carrier mesh 22; interception net 23; deep mesh 12-1; shallow mesh 12-2. Detailed Implementation

[0026] In the various examples of this specific embodiment, directions are defined for ease of description and understanding. Dimensions such as length and width, as well as the length and width mentioned in the description, are defined based on the shape of the object being described. For example, the length direction of the treatment tank is defined as the direction from the inlet to the outlet (i.e., the direction of water flow within the treatment tank), while its width direction is perpendicular to the length direction. The length direction of the membrane assembly is defined as the direction from one end of the membrane assembly to the other, and the width direction is the direction between the two sides of the membrane assembly. The length direction of the membrane assembly is consistent with and perpendicular to the width direction of the treatment tank. The length directions of the protrusions, connecting ribs, and water channels of the foam frame are the same as the length direction of the treatment tank, and their width directions are consistent with the width direction of the treatment tank.

[0027] Example 1: refer to Figure 1 The pig farm wastewater treatment system in this example consists of multiple treatment tanks and reinforcement tanks set between the treatment tanks.

[0028] The treatment tank is divided into an inlet area and an outlet area. Inlet 1 and outlet 2 should be located at opposite ends of the treatment tank (ideally at opposite corners). The inlet is located at the bottom of the inlet area, and the outlet is located on the embankment of the outlet area.

[0029] The treatment ponds include a high-concentration treatment pond directly connected to the pig farm's wastewater discharge inlet, and a low-concentration treatment pond located downstream of it.

[0030] In one example, there are high-concentration treatment tanks connected in series, namely high-concentration tank 1 and high-concentration tank 2. The pig farm wastewater discharge inlet directly feeds untreated wastewater into the inlet area of ​​high-concentration tank 1, i.e., the bottom of high-concentration tank 1. After treatment, the outlet of high-concentration tank 1 (an opening in the tank embankment to allow surface water to flow downstream) connects to the bottom of high-concentration tank 2. The outlet of high-concentration tank 2 connects to a first enhancement tank. After enhancement treatment, the effluent from the first enhancement tank is discharged into the downstream low-concentration treatment tank. The low-concentration treatment tank is divided into two stages, with a second enhancement tank between each stage; each stage of the low-concentration treatment tank contains two tanks. The specific sequence is as follows: High-concentration pool 1, high-concentration pool 2, first enhancement pool, first-stage low-concentration pool 1, first-stage low-concentration pool 2, second enhancement pool, second-stage low-concentration pool 1, second-stage low-concentration pool 2.

[0031] Of course, if necessary, one more treatment tank can be added to each stage, such as adding a second-stage low-concentration tank No. 3; or a third-stage enhancement tank, a third-stage low-concentration tank No. 1, and a third-stage low-concentration tank No. 2 can be added downstream.

[0032] The inlet of each pool is located at the bottom of the pool, and the water is discharged from the surface. Water is drawn from the surface upstream using one end of a pipe, and then the other end of the pipe is extended into the bottom of the pool downstream.

[0033] All treatment and enhancement tanks are open-air tanks.

[0034] Each treatment tank (excluding the enhancement tank) is equipped with a highly efficient deodorizing pig farm wastewater treatment facility. The treatment facility includes a membrane assembly, a longitudinal membrane, a catchment network, and a plant system.

[0035] Example 2: refer to Figure 2 The mesh assembly can be made of multiple continuous sheets of synthetic fiber fabric, each 1 meter wide and of unlimited length, connecting to cover 90% of the surface of the treatment tank. Several floats are installed on the underside of the synthetic fiber fabric as buoyancy blocks. The floats are sealed round tubes 20 made of PVC material, with a diameter of 3cm to 8cm, and both ends are sealed to form sealed cavities to generate buoyancy.

[0036] Multiple floats are arranged along the water flow direction in the treatment tank, with each float spaced 20cm apart. When the synthetic fiber fabric is laid on the floats, the supported areas form protrusions, while the unsupported areas form grooves that sink into the water, serving as water flow channels. Biological filler 10 is placed in the grooves. The grooves are distributed along the water flow direction, forming a confluence network as the water flows to the outlet. An appropriate amount of soil is laid on top of the membrane assembly, and plant seeds are sown to construct a plant system.

[0037] The longitudinal mesh is made of synthetic fiber fabric with 2mm diameter mesh openings. It is positioned longitudinally in the water, perpendicular to the water flow direction, to intercept water currents, retain pollutants during water flow, and provide an attachment medium for the biofilm. The upper edge of the longitudinal mesh can be suspended from a float by binding or other methods.

[0038] A water flow gap is formed between the edge of the chemical fiber fabric and the longitudinal mesh.

[0039] This example only achieves the basic effects of the present invention. The PVC sealed circular pipe has a high manufacturing cost, which is not conducive to cost reduction and efficiency improvement. The mesh assembly and longitudinal mesh are made of synthetic fiber fabric, which lacks sufficient corrosion resistance in high-concentration wastewater, and the longitudinal mesh is difficult to install. Furthermore, the synthetic fiber fabric covers 90% of the treatment tank surface, making construction difficult and maintenance costly, and hindering the exchange of water between the surface and subsurface layers. Therefore, this example is not a preferred option.

[0040] Example 3: refer to Figure 4 The membrane assembly is continuously laid on the surface of the water in the treatment tank. Each row of membrane assemblies is continuously laid from one side of the treatment tank embankment to the other side of the treatment tank embankment, and consists of a water surface mesh and buoyancy components.

[0041] The water surface mesh is a porous mesh fabric woven from glass fiber, possessing excellent corrosion resistance and mechanical strength. Its surface is covered with numerous pores ranging from 2mm to 4mm in diameter. The material is 1.5m wide, with unlimited length (in rolls; when unrolled, it can exceed the maximum length or width of the treatment tank).

[0042] refer to Figure 7 The buoyancy component consists of protruding strips and connecting ribs. The connecting ribs 8 can be made of wood, but wood is heavy, and binding or gluing the protruding strips 9 to them is labor-intensive and prone to falling off. A better approach is to integrally mold the protruding strips 9 and connecting ribs 8 using foam material. These connecting ribs 8 simultaneously provide buoyancy. Four protruding strips 9 are arranged side-by-side (forming three grooves between them), spaced 27cm apart. Each protruding strip 9 is 5cm wide and 1m long, thus forming a buoyancy frame 7 approximately 1m in length and width, with at least two connecting ribs 8. This size design facilitates production, transportation, installation, and stability within the treatment tank.

[0043] The upper surface of the connecting rib 8 is in contact with the lower surface of the protrusion 9, meaning that the groove formed between the protrusions 9 is continuous and unaffected by the connecting rib 8.

[0044] refer to Figure 6 During construction, the buoyancy frames 7 are first tightly arranged in the treatment tank, with the length direction of the protruding strips 9 aligned with the length direction of the treatment tank, arranged from one side of the tank bank to the other. Then, the water surface mesh 14 is directly covered onto the arranged row of buoyancy frames 7 and secured with straps, thus forming a mesh row. The length of the water surface mesh 14 is the same as the length of the row of buoyancy frames 7, but the water surface mesh 14 does not need to be tensioned, forming numerous folds above the row of buoyancy frames 7. The protruding strips 9 are used to support the water surface mesh 14, forming a raised shape in the area above the protruding strips 9. In the gaps of the buoyancy frames 7, especially between two protruding strips 9, the water surface mesh 14 will sag to form grooves, serving as flow channels 15 for the surface water of the treatment tank to flow through. After absorbing water, the surface mesh 14 becomes even heavier as a biofilm attaches, exerting downward pressure on the buoyancy frame 7, causing it to remain mostly below the water surface. Only the portion of the surface mesh 14 above the ridge 9 remains above the water. This creates a flow channel 15 where clear water seeps from below onto the surface mesh 14. Furthermore, the flow channel 15 extends to the edge of the mesh, connecting the flow channel 15 with the water flow outside the mesh area.

[0045] refer to Figure 5 The membrane strips are continuously prepared and laid side-by-side until the treatment tank coverage area reaches more than 80%. Longitudinal membrane strips 4 are laid between the membrane strips, using a construction pattern of one membrane strip sandwiching one longitudinal membrane strip 4 (other arrangements and quantities are also possible, such as two membrane strips sandwiching one longitudinal membrane strip 4). The membrane strips and longitudinal membrane strips 4 are alternately arranged within the treatment tank, with the membrane strips positioned between two longitudinal membrane strips 4, and the distance between the edge of the membrane strip and the longitudinal membrane strip 4 is 5cm to 10cm.

[0046] The design of the foam frame must consider its ability to support the weight of the water surface mesh and the plant system on it, ensuring that the mesh assembly remains on the water surface at all times. Once the buoyancy and gravity matching design is complete, the connecting ribs of the buoyancy frame should be completely submerged in the water, while the raised ribs should protrude above the water surface.

[0047] The vertical and longitudinal meshes are suspended in the water and perpendicular to the direction of water flow.

[0048] When fabricating the mesh assembly 3, a 1.5m wide surface mesh 14 is selected, and the length and width of the buoyancy frame 7 are both 1m. When the 1.5m wide surface mesh 14 covers the 1m wide buoyancy frame 7, there is a 25cm margin on each side. This 25cm of surface mesh 14 hangs naturally in the water, forming a vertical edge 16. The vertical edge 16 and the surface mesh 14 act like a net covering the water below.

[0049] refer to Figure 8 The longitudinal mesh is composed of anchor ropes, buoyancy rods and longitudinal mesh fabric.

[0050] Anchor rope 11 can be made of 10mm diameter fiberglass rope, but its strength may be insufficient. Since the mesh assembly 3 is not anchored in the water, and one mesh assembly 3 is sandwiched between two longitudinal meshes 4, the anchor rope 11 must not only fix the position of the longitudinal meshes 4 in the water, but also prevent displacement of the mesh assembly 3. When strong winds blow across the water surface, the fiberglass rope cannot effectively fix the position of the mesh assembly 3 and the longitudinal meshes 4 on the water surface; therefore, in this example, an 8mm diameter steel wire rope is used to ensure strength. Buoyancy rod 13 floats on the water surface, mainly providing buoyancy support for the entire longitudinal mesh 4. The longitudinal mesh fabric 12 is a porous mesh fabric woven from fiberglass.

[0051] Buoyancy rods can be made of PVC plastic tubes, which are sealed at both ends to form a floating tube. A steel wire rope is then threaded through the middle and sealed. However, this method is relatively expensive and the seal is difficult to guarantee.

[0052] Therefore, another preferred option is that the buoyancy rod 13 is a columnar foam with a through hole at its center for the anchor rope 11 to pass through. Each section of the buoyancy rod 13 is 2m long and 10cm in diameter, and its shape can be a square column (lower production cost) or a cylinder.

[0053] During construction, the anchor rope 11 is first passed through the axis of the buoyancy rod 13, and the sections of buoyancy rod 13 are strung together. The two ends of the anchor rope 11 are anchored to the treatment pool embankment. The length direction of the longitudinal mesh 12 is consistent with that of the strung buoyancy rod 13. Then, the upper edge of the longitudinal mesh 12 is wrapped around the buoyancy rod 13 and tied and fixed, thus forming the longitudinal mesh 4. If it is necessary to consider different sag depths of the longitudinal mesh 4 (there are deep meshes and shallow meshes), the lower edge can be shortened as needed after tying and fixing, or the upper edge can be shortened a bit more during tying and fixing to form different sag depths.

[0054] To allow for the formation of a catchment network, when the anchor ropes are strung together with the buoyancy rods, not all buoyancy rods are seamlessly connected. Instead, adjacent buoyancy rods 13 are spaced 5cm to 10cm apart at intervals of approximately 5m to 10m. This ensures that each longitudinal mesh 4 has at least one gap 6 to allow water flow through. During construction, the longitudinal mesh 12 can be completely severed at the gap 6, or only the upper edge of the longitudinal mesh 12 can be severed, while the lower edge maintains the overall structure of the longitudinal mesh 12. This prevents contaminants from passing through the gap 6.

[0055] The longitudinal mesh 12 is set perpendicular to the water flow direction. During the interception process, it is necessary to ensure that the pollutants are evenly distributed in the treatment pool to facilitate efficient distributed treatment. For this purpose, the longitudinal mesh is set as a deep mesh 12-1 and a shallow mesh 12-2, allowing some pollutants to pass through while intercepting them. The deep mesh hangs down to the bottom of the pool and is folded and rolled up at the bottom (when the water level rises, the folded and rolled-up mesh stretches and can still reach the bottom of the pool, avoiding failure of the deep mesh due to rising water level); the shallow mesh hangs down to more than 1 / 3 of the water depth from the bottom. In this example, the shallow mesh hangs down to 1 / 2 of the water depth. For example, at the average water level, the shallow mesh hangs down to 50cm from the bottom of the pool.

[0056] The horizontal mesh assembly is arranged in conjunction with the deep mesh and shallow mesh. The arrangement of the deep mesh 12-1 and shallow mesh 12-2 in each treatment tank is different. For the high-concentration No. 1 treatment tank, due to the high pollutant load in the tank, the influent zone is mainly equipped with deep mesh 12-1, while the effluent zone uses an alternating arrangement of deep mesh and shallow mesh. In the other treatment tanks, the deep mesh and shallow mesh are arranged alternately.

[0057] The membrane assembly 3 is continuously laid on the surface of the water in the treatment tank. The vertical edge 16 and the water surface mesh 14 form a three-sided enclosed cavity for the water in the anaerobic treatment environment. Most of the polluted water is located within or below the three-sided enclosed cavity, separated from the aerobic area, while maintaining water osmosis and exchange. Therefore, solid pollutants in the water are confined within the three-sided enclosed cavity formed by the membrane assembly 3 and cannot float to the surface, while the liquid gradually permeates upwards.

[0058] There is usually some scum on the surface of the water. The mesh module 3 and the longitudinal mesh 4 form an interception on the water surface to block the scum, and through the confluence network, the water that seeps to the top of the mesh module 3 and has been treated aerobically flows to the outlet of the treatment tank and enters the next stage of treatment tank.

[0059] The confluence network is formed by interconnected water channels 15, water gaps, and openings 6. The water flowing through the confluence network is mainly water that infiltrates from above the membrane assembly 3 (of course, some water also floats directly from the bottom to the water gaps and openings 6, but it will undergo aerobic treatment after floating). The water gaps are approximately 5cm to 10cm wide slits formed by the gaps between the membrane edge and the buoyancy rods 13 of the longitudinal membrane 4.

[0060] The surface water of the water surface mesh 14 flows from the water flow channel 15 to the water flow gap, and flows into the adjacent mesh assembly 3 through the gap 6. With the help of the water flow channel 15 on the adjacent mesh assembly 3, it flows towards the outlet. The surface water flows away from the outlet. Therefore, the surface water after aerobic treatment flows into the next treatment tank first.

[0061] refer to Figure 5 10 cubic meters of biological filler were spread on top of the netting on the water surface.

[0062] refer to Figure 3 , Figure 5 The plant system 5 is planted on the water surface netting 14, and includes plants and a plant growth substrate layer. In the area of ​​the water surface netting 14 adjacent to the treatment tank embankment, a ring of plants with a width of 0.5m to 1.5m is planted; in the middle of the treatment tank, a row of netting components 3 planted with plants is set every 4 to 6 netting components 3. Plant species include bermudagrass, clover, zinnia, datura, and tall fescue.

[0063] In Examples 2 and 3 above, the shallow water depth within the flowing channels allows light to penetrate directly, and the large surface area of ​​the water in contact with air creates a favorable aerobic environment. The raised sections above the water surface on both sides of the flowing channels are directly exposed to light and air, resulting in high gas-liquid exchange efficiency. Simultaneously, the water surface mesh has good water absorption, ensuring ample water exchange between the raised sections and the interior of the flowing channels. The raised sections remain moist, making them more suitable for the attachment and growth of aerobic microorganisms compared to the interior of the flowing channels. Observational results show that it takes approximately 7 days for algae and bacteria in the flowing channels to become visibly green, while the raised sections, thanks to their unique gas-liquid interface structure, only require 1-2 days to become visibly green. Furthermore, because the flowing channels and the raised sections are interconnected, continuous water and microbial exchange occurs between them, promoting the rapid formation and stable maintenance of the aerobic environment within the flowing channels.

[0064] Buoyancy rod 13 floats on the water surface, forming a barrier to intercept floating debris. Longitudinal netting 12 hangs in the water to intercept pollutants in flowing water through chemical, biological, and physical means.

[0065] The confluence network is also an aerobic environment. As part of the continuous aerobic environment on the water surface, it intercepts substances that mainly cause odor, such as ammonia and hydrogen sulfide, preventing them from spreading into the air.

[0066] The mesh components, longitudinal mesh 4, and the confluence network (specifically, water channels, protrusions, and gaps) collectively construct a continuous aerobic environment system across the entire water surface, forming a barrier to intercept odors from the water below the surface. This effectively treats odor-causing substances such as ammonia and hydrogen sulfide in the surface water, preventing odors from escaping into the air. The plant system 5 enhances the site's landscape and also plays a synergistic role in constructing the aerobic environment system and intercepting odors.

[0067] Vertical and longitudinal membranes are suspended in the water and perpendicular to the water flow direction, providing an interface for biofilm attachment and intercepting pollutants in the flowing water through physical, chemical, and biological processes. The vertical and longitudinal membranes constitute a longitudinal interception system.

[0068] The longitudinal mesh 12 is set perpendicular to the water flow direction. When water flows through the mesh of the longitudinal mesh 12, on the one hand, the mesh can physically intercept solid pollutants, promote the sedimentation of solid pollutants, and degrade and transform them at the bottom of the pool; on the other hand, the biofilm generated by the longitudinal mesh can biodegrade and transform pollutants in the water.

[0069] After the invention is deployed, the bottom water is not exposed to sunlight, and the vertical edges 16 and the longitudinal mesh 4 provide conditions for biofilm attachment and growth. Therefore, an anaerobic treatment environment is formed throughout the treatment tank, allowing for anaerobic treatment of the water. The surface water has an average depth of about 5 cm, and by the time the water penetrates above the mesh assembly 3, it has already been intercepted by the surface mesh 14. Therefore, the surface water has a low solid content, and sunlight can easily penetrate it. The surface mesh 14 is also designed with biological filler 10 and a plant system, thus creating a good aerobic treatment environment above the mesh assembly 3. The water undergoes aerobic treatment here, intercepting, absorbing, and converting malodorous gases such as ammonia and hydrogen sulfide.

[0070] Example 4: In Examples 2 and 3, the biological filler 10 and the constructed plant system 5 contain nutrients such as calcium, magnesium, and silicon (e.g., a mixture consisting of 50%–80% ordinary silicate cement, 10%–40% calcium-based bentonite, and 10% commercially available mixed aerobic bacteria agent purchased from Henan Kunhuo Biotechnology Co., Ltd.). The biological filler 10 serves as a medium for microbial attachment and cultivation, promoting microbial attachment and reproduction, constructing an attachment and reproduction environment dominated by photosynthetic microorganisms, and forming and maintaining an aerobic environment.

[0071] Examples 2 and 3 describe the construction of plant system 5 to build a pig farm wastewater treatment facility that integrates efficient deodorization and ecological landscape.

[0072] When constructing the plant system, a gradient nutrient environment was first created, characterized by suitable humidity without waterlogging and moderate fertility without excess (transitioning from a high-concentration nutrient environment in the substrate bottom layer immersed in water to a low-concentration nutrient environment on the substrate surface). Nutrient-rich soil, such as common potting soil or cultivated soil, was selected as the substrate for plant growth. Locally sourced, mature farmland soil was preferred due to its rich content of organic matter and slow-release nutrients, which promote plant growth, and its readily available availability. Instead of transplanting seedlings, seeds were directly sown into the substrate. The bottom layer of soil in contact with the infiltrating water ensured the entire substrate was moistened, guaranteeing the continuous upward infiltration of water and low-concentration nutrients. Seeds in the substrate received ample nutrition and moisture, facilitating easy germination. Therefore, the fertile cultivated soil and the natural germination mechanism of seeds achieved a synergistic effect of landscaping and air purification, with the substrate also acting as a soil filter. Of course, in high-concentration treatment ponds, improper planting methods can lead to plant withering due to nutrient overload. The combination of water surface netting, grooves, partially water-contact substrate, and topsoil avoids direct impact from high-concentration raw water that could burn roots. Plants are planted from seeds, undergoing a natural germination process, initial root exploration, and gradual deep root development, allowing for the selection of pollution-tolerant species truly adapted to the environment. Observations show that after a period of time, the roots of the growing clover have penetrated the water surface netting and penetrated deep into the water, while Dichondra repens, lacking sufficient tolerance, is naturally eliminated. Furthermore, the open environment allows seeds of surrounding native plants to be dispersed by wind or birds, creating dynamic replenishment and community succession, ultimately establishing a stable vegetation system that requires no artificial replanting and possesses self-renewal capabilities.

[0073] Once plants have grown and survived to a certain stage, their roots can penetrate the gaps in the mesh to exchange substances with the lower water, absorbing excess nitrogen and phosphorus. At the same time, they secrete substances that promote biological metabolism and enhance microbial activity, forming a collaborative purification interface between plants and microorganisms to treat the water and create an ecosystem of root nitrogen fixation, filler adsorption, and bacterial degradation.

[0074] Plant system 5 can not only create a good landscape and further extend the ecological chain, providing a habitat for insects such as bees and butterflies, but also attract birds, enhance regional biodiversity, and improve the landscape effect.

[0075] Example 5: Example 1 describes the use of an enhancement pool, which is composed of enhancement channels 21.

[0076] refer to Figure 9 In one example, the enhancement pool is a ditch divided into 5 to 10 sections, which are placed side by side and separated from each other by the same ditch wall. This connects the surface of the upstream enhancement ditch with the bottom of the next enhancement ditch, allowing the water to settle repeatedly and the surface water to enter the downstream.

[0077] Strengthened channel 21 specifically refers to channels with a cross-sectional area of ​​less than 1m². 2 In one example, the reinforced channel 21 is 1.1m wide and 0.5m deep. Interception nets 23 perpendicular to the water flow direction are installed every 1.5m within the channel, and a horizontal carrier net 22, which remains submerged no more than 10cm below the water surface regardless of water level changes, is installed between two interception nets 23. The horizontal carrier net 22 is a porous mesh fabric woven from fiberglass. A rectangular frame, slightly narrower than the width of the reinforced channel 21, is constructed using 6-point PVC pipes. The frame structure is similar to the design of the foam frame 7 in Example 3. The rectangular frame is 1.04m wide (approximately 3cm from the reinforced pool wall on both sides for easy installation); the frame is 1.3m long, with a 10cm distance from the interception nets at the front and back, allowing some light to penetrate the channel bottom). The four edges of the horizontal carrier net 22 are fixedly tied to the frame, thus forming the horizontal carrier net 22. Biological filler 10 is then spread on the horizontal carrier net 22, creating the grooves and protrusions 9 found on the mesh assembly 3 in Example 3. The bottom of the groove and the biological filler 10 are submerged about 5cm below the water surface, so that an anaerobic environment is formed at the bottom of the enhanced channel 21 below the horizontal carrier net 22 and an aerobic environment is formed above the horizontal carrier net 22.

[0078] The outlet of the reinforced canal is connected to the next treatment pond.

[0079] Example 6: The pig farm wastewater treatment system of the present invention was put into exemplary application in a certain place in Ya'an, Sichuan Province in June 2025.

[0080] refer to Figure 1 The processing system in this example consists of multiple processing pools and enhancement pools (see Example 4) located between the processing pools. Specifically, it includes a high-concentration pool 1, a high-concentration pool 2, a first enhancement pool, a first-stage low-concentration pool 1, a first-stage low-concentration pool 2, a second enhancement pool, a second-stage low-concentration pool 1, a second-stage low-concentration pool 2, a third enhancement pool, a third-stage low-concentration pool 1, a third-stage low-concentration pool 2, and a fourth enhancement pool, for a total of 8 processing pools and 4 enhancement pools.

[0081] Each treatment tank is equipped with a pig farm wastewater treatment facility that removes odors, and is also equipped with the plant system, membrane assembly and manifold network shown in Example 5.

[0082] The membrane modules are continuously laid on the surface of the water in the treatment tank, covering more than 80% of the tank surface. Each row of membrane modules is laid continuously from one side of the treatment tank bank to the other. The membrane modules consist of a surface mesh and a foam frame. The surface mesh is woven from fiberglass to form water flow channels. The longitudinal membrane consists of anchor ropes, buoyancy rods, and longitudinal mesh. Each longitudinal membrane has 3-4 notches, with deep and shallow membranes alternating. The membrane rows and longitudinal membranes are arranged alternately in the treatment tank, allowing for flexible placement based on water conditions. The portion of the longitudinal membrane protruding above the water surface and the water flow gaps covers approximately 10% of the treatment tank surface (supplementing the area not covered by the membrane modules). Biological filler is sprinkled on top of the surface mesh, and a plant system, including topsoil and plants, is planted on top of the surface mesh. Near the water surface netting along the treatment pond embankment, a planting strip 0.5m to 1.5m wide is created. In the center of the treatment pond, a row of plants is planted every few rows of netting. The plants include bermudagrass, clover, zinnia, datura, and tall fescue. Planting a row of plants every four rows of netting creates a stable vegetation system that requires no artificial replanting and has self-renewal capabilities. This creates an ecological microenvironment suitable for insects such as bees and butterflies to inhabit and reproduce, improving biodiversity and enhancing the landscape.

[0083] Through this exemplary application, the system not only improves the ecological landscape of the treatment scenario and suppresses odor emissions, but also has strong core wastewater treatment capabilities and good wastewater treatment effect.

[0084] During the trial use, wastewater treatment parameters were collected from June 2025 to June 2026, as shown in the table below:

[0085] As can be seen from the table above, the system demonstrated outstanding purification capabilities for high-concentration wastewater during its year of continuous operation: COD (Chemical Oxygen Demand): The influent concentration is as high as 6341-80000 mg / L, while the effluent concentration drops to 113-400 mg / L, with a removal rate of 96.64%-99.86%, indicating that the system has an extremely strong ability to degrade high concentrations of organic pollutants.

[0086] SS (suspended solids): influent 3130~42250mg / L, effluent 43~163mg / L, removal rate 97.54%~99.90%, indicating that the interception and sedimentation effect of solid pollutants is significant.

[0087] TP (Total Phosphorus): Influent 124-1844 mg / L, effluent 0.3-6 mg / L, removal rate 97.58%-99.98%, demonstrating high efficiency in removing key eutrophication indicators.

[0088] NH3-N (ammonia nitrogen): influent 1379~2606mg / L, effluent 49~80mg / L, removal rate 93.47%~98.12%, verifying the system's ability to remove nitrogen pollutants.

[0089] Demonstrates resistance to shock loads and environmental adaptability: Treatment water volume fluctuation: 0~180m 3 / day indicates that the system can cope with drastic changes in water volume and has flexible processing capabilities.

[0090] Temperature adaptability: Air temperature 0~38.0℃, water temperature 8.0~32.5℃, proving that the system can still operate stably under a wide range of temperature conditions and is suitable for different climate regions.

[0091] The data in the table directly demonstrates that the treatment effect of this invention, especially for high-concentration organic wastewater (such as COD up to 80,000 mg / L), far exceeds that of conventional processes, and it also reflects ecological and economic value, demonstrating environmental friendliness. Through the synergistic effect of plant systems (such as bermudagrass and clover) and biofilms, the landscape is enhanced. The surface of the treatment pond is covered with a mesh membrane component and planted with vegetation, forming a stable vegetation system and improving the on-site landscape.

[0092] This invention presents an effective control effect on odor generated from pig farm wastewater.

[0093] In March 2026, Sichuan Haidehui Environmental Protection Technology Co., Ltd., as a third-party testing company, conducted fugitive emission gas testing within the treatment area and at the site boundary. The results are as follows: Odor concentration: The odor concentration at the site boundary was measured in accordance with the "Three-point comparison odor bag method for determination of odor in ambient air and exhaust gas" (HJ 1262-2022). The odor concentration at the site boundary was less than 10 (dimensionless), which is far below the limit of 70 (dimensionless) stipulated in the "Emission Standard of Pollutants from Livestock and Poultry Farming" and the "Emission Standard of Pollutants from Livestock and Poultry Farming in Sichuan Province".

[0094] Ammonia concentration: Detected according to the standard "Determination of Ammonia in Ambient Air and Exhaust Gas - Nessler's Reagent Spectrophotometric Method" (HJ 533-2009), the ammonia concentration at the site boundary is between 0.06 and 1.13 mg / m³. 3 The concentration is far below the 1.5 mg / m³ specified in the Class II standard of the "Odor Pollutant Emission Standard" (GB14554-93). 3 Limit requirements. Meanwhile, the average ammonia concentration in the atmosphere of the treatment area is 0.06–0.08 mg / m³. 3 This indicates that the patented process can stably control the release and dispersion of ammonia throughout the entire process, with minimal impact on the surrounding atmospheric environment.

[0095] Hydrogen sulfide concentration: The concentration was measured according to Section 11.(II) of Part III of the "Methods for Monitoring and Analysis of Air and Exhaust Gases" (Fourth Edition), specifically the "Determination of Hydrogen Sulfide in Ambient Air by Methylene Blue Spectrophotometry (B)". The hydrogen sulfide concentration at the boundary was less than 0.001 mg / m³. 3 It is far below the 0.06 mg / m³ specified in the Class II standard of the "Odor Pollutant Emission Standard" (GB 14554-93). 3 Limit requirements.

[0096] From June 2025 to the date of this patent application, nearby villagers, construction workers, maintenance personnel, property owners, and numerous groups of visitors have continuously conducted on-site inspections. Through interviews with these individuals, feedback from approximately 300 people has been collected, unanimously indicating that the application of this technology has resulted in a positive sensory experience, no noticeable odor, and a significant improvement in the living experience of surrounding residents.

[0097] The above data shows that the treatment process described in this patent can effectively control the odor of pig farm wastewater, and the emission concentrations of various pollutants at the farm boundary after treatment are significantly lower than the national and local standard limits.

[0098] The pH and dissolved oxygen (DO) of the surface effluent from different enhancement tanks were measured, and the data are as follows:

[0099] Based on membrane components, a confluence network, a plant system, and a longitudinal membrane, a slightly alkaline aerobic environment for surface water is constructed and maintained.

[0100] Hydrogen sulfide control: Surface aerobic conditions inhibit the anaerobic metabolic activity of sulfate-reducing bacteria, blocking hydrogen sulfide formation at its source; simultaneously, slightly alkaline water (pH 7.86–8.70) promotes the ionization of already generated hydrogen sulfide into low-volatility hydrosulfide ions (HS-H2O). - This reduces the mass transfer driving force for hydrogen sulfide to escape from the liquid phase to the gas phase.

[0101] Ammonia control: The aerobic environment promotes the biotransformation of ammonia nitrogen by nitrifying bacteria, thereby reducing the concentration of free ammonia in the liquid phase. Under sufficient dissolved oxygen (preferably ≥2.0 mg / L), the contribution of the nitrification rate to the reduction of ammonia nitrogen is much greater than the increase in surface volatilization caused by slight alkalinity, which is reflected in the reduction of ammonia emission flux.

[0102] The above is an exemplary description of the present invention and does not represent the scope of protection of the present invention. The technical implementation methods and principle descriptions in each example have their own emphasis. Therefore, each example can be referred to by each other or combined to generate new examples. Of course, since each example has many sub-examples, if the technology formed by combining a certain sub-example would violate the core idea of ​​the present invention, such combination should be avoided and other possible combination methods should be used instead.

Claims

1. A highly efficient deodorizing pig farm wastewater treatment facility, comprising: several membrane components horizontally floating on the water surface within a pig farm wastewater treatment tank; and several longitudinally arranged membranes perpendicular to the water flow direction and longitudinally positioned in the water; characterized in that, There are flow gaps between the mesh assemblies and between the mesh assemblies and the longitudinal mesh; The membrane assembly has several water flow channels, and there are protrusions on both sides of the water flow channels that are above the water surface. The water flow channels are connected to the water flow gap. The water channels, protrusions, and gaps are used to create a continuous aerobic environment on the surface of the water body and an anaerobic environment below the surface. It has a flow network for collecting surface water to the effluent of the treatment tank; the flow channels and flow gaps therein constitute part of the flow network of the surface water.

2. The efficient deodorization pig farm wastewater treatment facility as described in claim 1, characterized in that, The mesh assembly covers more than 80% of the surface area of ​​the treatment pool.

3. The efficient deodorization pig farm wastewater treatment facility as described in claim 1, characterized in that: The aforementioned mesh assembly includes a water surface mesh and buoyancy components; The water surface mesh is used to allow water below the membrane assembly to permeate to the top of the membrane assembly, and to intercept pollutants during the permeation process; The buoyancy component is used to make the water surface mesh float on the water surface; the buoyancy component is a foam frame, which is composed of several protruding strips and several connecting ribs; the protruding strips are used to support the water surface mesh, so that the water surface mesh above the protruding strips forms a protrusion; the water surface mesh between two protruding strips forms the water flow channel, which is below the water surface and extends to the edge of the mesh; the connecting ribs are used to connect the protruding strips. Several foam frames form a foam frame row, and a water surface mesh is placed on top of the foam frame row and fixed, so that the mesh assembly forms a mesh row, and the length direction of the mesh row is perpendicular to the water flow direction in the treatment tank.

4. The efficient deodorization pig farm wastewater treatment facility as described in claim 1, characterized in that, The longitudinal mesh is composed of anchor ropes, buoyancy rods floating on the water surface, and longitudinal mesh fabric hanging in the water; the buoyancy rods are columnar foam with through holes in the middle for the anchor ropes to pass through; the anchor ropes string together several sections of buoyancy rods and anchor both ends to the treatment pool embankment; the upper edge of the longitudinal mesh fabric is wrapped around the buoyancy rods and tied and fixed. It also has vertical edges, which are formed by the portion of the water surface mesh that exceeds the width of the foam frame and hangs down into the water from both sides of the buoyancy frame; the vertical edges and the water surface mesh form a three-sided enclosing cavity for the water. Longitudinal meshes and vertical edges are used to provide biofilm attachment and to intercept pollutants in flowing water.

5. The efficient deodorization pig farm wastewater treatment facility as described in claim 4, characterized in that, The mesh assembly and longitudinal mesh are arranged alternately in the treatment tank, with the mesh assembly located between two longitudinal meshes; the mesh assemblies are spaced 5cm to 10cm apart from each other and from each mesh assembly to the longitudinal mesh, which serves as the water flow gap. The longitudinal mesh consists of deep mesh and shallow mesh. The longitudinal mesh of the deep mesh hangs down to the bottom of the pool, while the longitudinal mesh of the shallow mesh hangs down to more than 1 / 3 of the way up from the bottom of the water. Several deep meshes and several shallow meshes are arranged in the treatment pool.

6. The efficient deodorization pig farm wastewater treatment facility as described in claim 4, characterized in that, The buoyancy rod acts as a barrier against pollutants on the water surface; Each row of longitudinal mesh has at least one notch in its buoyancy bar, with a notch width of 5cm to 10cm; the notch is connected to the water flow gap and forms part of the confluence network.

7. A pig farm wastewater treatment facility integrating efficient deodorization and ecological landscaping, characterized in that: In the efficient deodorization pig farm wastewater treatment facility according to any one of claims 1 to 6, a plant system is installed on some of the membrane components to absorb nutrients from the water, intercept odors, and provide an ecological landscape.

8. The pig farm wastewater treatment facility integrating efficient deodorization and ecological landscaping as described in claim 7, characterized in that, The plant system includes a plant growth substrate layer and plants, with the substrate layer laid on a net on the water surface; A ring of plants with a width of 0.5m to 1.5m is planted on the water surface netting near the treatment pond embankment; in the middle of the treatment pond, a row of plants is set at intervals of several rows of netting components; the plants include one or a combination of bermudagrass, clover, zinnia, datura, and tall fescue. The substrate layer is nutrient soil laid on top of the water surface netting, and part of the nutrient soil in the substrate layer is in the water flow channel to absorb water and nutrients.

9. A pig farm wastewater treatment system, characterized in that, It is equipped with multiple processing pools, and reinforcement channels are set between the processing pools; The treatment ponds include a high-concentration treatment pond that is directly connected to the pig farm's wastewater discharge outlet, a reinforcement channel downstream of the high-concentration treatment pond, and a low-concentration treatment pond downstream of the reinforcement channel. Each high-concentration treatment tank can be a multi-stage treatment tank, and each low-concentration treatment tank can be a multi-stage treatment tank. The processing pool is at least one of the following: The treatment pool is equipped with a pig farm wastewater treatment facility with high efficiency deodorization as described in any one of claims 1 to 6, and the treatment pool is equipped with a pig farm wastewater treatment facility integrating high efficiency deodorization and ecological landscape as described in any one of claims 7 to 8.

10. The pig farm wastewater treatment system as described in claim 9, characterized in that, The reinforced channel specifically has a cross-sectional area of ​​less than 1m². 2 The water channel has several intercepting nets perpendicular to the water flow direction, and a horizontal carrier net is set between two intercepting nets, which is always kept no more than 10 cm below the water surface as the water level changes. Biological filler is spread on the horizontal carrier net to establish an anaerobic environment at the bottom and an aerobic environment at the surface. The enhanced channel is composed of several channel sections arranged side by side, connecting the surface of the upstream enhanced channel with the bottom of the next enhanced channel, so that the water can be repeatedly settled and the surface water can enter the downstream.

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