Agricultural non-point source pollution ecological interception device

Abstract

The invention discloses an agricultural non-point source pollution ecological interception device which comprises a main body, a water inlet, a water outlet and a water outlet. A water inlet of the pretreatment port is provided with a water permeable brick, the upper edge of the pretreatment port is fixedly connected with a guide plate, and two sides of the pretreatment port are provided with collecting boxes; a dirt collecting unit is further arranged below the main body, the interior of the main body is divided into a first cabin and a second cabin, a first filter screen is arranged between the first cabin and the pretreatment opening, and a second filter screen is arranged between the first cabin and the second cabin; a first storage tank, a control device, an intercepting plate and a second storage tank are sequentially arranged at the top of the main body; a plurality of adsorption rods are suspended in the first cabin; and a plurality of interception plates are arranged in the second cabin. The ecological intercepting device is modularized, low in energy consumption and easy to maintain, is suitable for farmland drainage ditches, riverway edges and gentle slope areas, improves the pollutant removal rate through multi-stage collaborative purification, and achieves efficient purification of nitrogen, phosphorus, suspended solids and pesticide residues.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural protection, and more particularly to an ecological interception device for agricultural non-point source pollution. Background Art

[0002] Agricultural non-point source pollution refers to the contamination of water environments caused by nutrients such as nitrogen and phosphorus, pesticides, and other organic and inorganic pollutants released during agricultural production activities through farmland surface runoff, drainage, and underground seepage. With the advancement of agricultural modernization, the extensive use of fertilizers and pesticides, and the large-scale development of livestock and poultry farming, agricultural non-point source pollution has become increasingly serious, causing significant harm to water bodies, soil, and the ecological environment.

[0003] Currently, ecological interception measures, such as the construction of ecological ditches and artificial wetlands, are commonly used to control agricultural non-point source pollution. However, existing ecological interception devices have several shortcomings, including low interception efficiency and an inability to target different types of pollutants; poor ecosystem stability and susceptibility to external environmental factors; and high maintenance costs, requiring regular cleaning and management.

[0004] Therefore, there is an urgent need to design an efficient, stable and low-cost ecological interception device for agricultural non-point source pollution. Summary of the Invention

[0005] The purpose of the present invention is to provide an ecological interception device for agricultural non-point source pollution to solve the problems of low interception efficiency, unstable ecosystem and high maintenance cost raised in the above background technology.

[0006] To achieve the above-mentioned purpose, an embodiment of the present invention provides an ecological interception device for agricultural non-point source pollution, comprising: a hollow main body, a pretreatment port is provided at one end of the main body, and a water outlet is provided at the other end; a permeable brick is provided at the water inlet of the pretreatment port, the upper edge of the pretreatment port is fixedly connected to the guide plate, and collection boxes are also provided on both sides of the pretreatment port; a sewage collecting unit is also provided under the main body, and the interior of the main body is divided into a first compartment and a second compartment, a first filter screen is provided between the first compartment and the pretreatment port, and a second filter screen is provided between the first compartment and the second compartment; a first storage tank, a control device, an interception plate and a second storage tank are provided on the top of the main body in sequence; a plurality of adsorption rods are suspended inside the first compartment; a plurality of interception plates are provided in the second compartment; a stop block is provided at the water outlet in the second compartment for slowing down the flow rate of water.

[0007] Preferably, the sewage collecting unit is arranged at the bottom of the second compartment and includes a sedimentation tank, which is connected to a conduit through a sewage suction pump for sewage discharge.

[0008] Preferably, triangular sedimentation weirs are provided at both ends of the bottom of the first chamber, and the slope of the sedimentation weir is directly opposite to the opening of the sedimentation tank, so that the sediment in the first chamber slides into the sedimentation tank through the sedimentation weir.

[0009] Preferably, the guide plate is a triangular plate, which can divert garbage floating on the water surface and in shallow water areas into a collection box.

[0010] Preferably, the intercepting plate is provided with a containing chamber inside, and a plurality of penetration holes are provided on both side surfaces. The containing chamber can be used to place chemicals to flow out through the penetration holes to neutralize harmful substances in the water.

[0011] Preferably, a partition plate is provided inside the first storage tank to divide the interior of the first storage tank into multiple accommodating chambers, and a baffle is also provided on the partition plate; the first storage tank is rotatably connected to a control plate, the control plate is provided with a through hole, a control shaft is provided at the center position of the circle, and the control shaft is electrically connected to the control device; rotating the control plate can control the outflow of chemicals in different accommodating chambers of the first storage tank.

[0012] Preferably, a releaser is provided at the bottom of the second storage tank, with a plurality of penetration holes on the releaser, and the releaser extends deep into the interior of the second compartment.

[0013] Preferably, a plurality of detectors are provided inside the main body for detecting changes in water quality.

[0014] Preferably, the control device includes a motor, a battery, a control panel, control buttons and a display screen, and the control device is electrically connected to the first storage tank, the pollution collection unit and the detector.

[0015] Preferably, the filter screen is provided with an accommodating chamber.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] Multi-stage collaborative purification: combining physical interception with chemical adsorption to treat pollutants in different forms in a targeted manner.

[0018] Modular design: Each unit can be replaced independently to adapt to different terrains and pollution loads.

[0019] Nutrient recycling: Utilize sludge and plant residues as resources to reduce the risk of secondary pollution.

[0020] Adaptive control: Dynamic optimization based on water quality data to improve operational stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0022] Figure 1 The accompanying drawing is a schematic structural diagram of the present invention.

[0023] Figure 2 The accompanying drawing is a schematic diagram of the main cross-sectional structure of the present invention.

[0024] Figure 3 The accompanying drawing is a schematic structural diagram of the interception plate of the present invention.

[0025] Figure 4 The accompanying drawing is a schematic structural diagram of the delivery tube of the present invention.

[0026] Figure numerals: 1. Main body; 2. Pretreatment port; 3. Guide plate; 4. Collection box; 5. Sedimentation tank; 6. Conduit; 7. First storage tank; 8. Second storage tank; 9. Control device; 10. Interceptor plate; 11. Display screen; 12. First filter screen; 13. First compartment; 14. Second filter screen; 15. Adsorption rod; 16. Sedimentation weir; 17. Releaser; 18. Water outlet; 19. Stop block; 20. Detector; 21. Second compartment; 71. Partition plate; 81. Control panel. DETAILED DESCRIPTION

[0027] To facilitate understanding for those skilled in the art, the following text and accompanying drawings describe various embodiments of this patent. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details in the specification should not be construed as limiting this patent. In other words, these practical details are not essential for some embodiments of this patent. Furthermore, for ease of understanding, some commonly used structures and components are depicted in simplified schematic form in the drawings.

[0028] In the description of this patent, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this patent.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this patent, "plurality" means two or more, unless otherwise specifically defined.

[0030] In this patent, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this patent based on the specific circumstances.

[0031] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this patent.

[0032] Please see the attached Figure 1-2 , is an agricultural non-point source pollution ecological interception device disclosed in the present invention, comprising: a hollow main body 1, one end of the main body 1 is provided with a pretreatment port 2, and the other end is provided with a water outlet 18; a permeable brick is provided at the water inlet of the pretreatment port 2, the upper edge of the pretreatment port 2 is fixedly connected to the guide plate 3, and collection boxes 4 are also provided on both sides of the pretreatment port 2; a sewage collecting unit is also provided under the main body 1, and the interior of the main body 1 is divided into a first compartment 13 and a second compartment 21, a first filter screen 12 is provided between the first compartment 13 and the pretreatment port 2, and a second filter screen 14 is provided between the first compartment 13 and the second compartment 21; a first storage tank 7, a control device 9, an interception plate 10 and a second storage tank 8 are sequentially provided on the top of the main body 1; a plurality of adsorption rods 15 are suspended inside the first compartment 13; a plurality of interception plates 10 are provided in the second compartment 21; a stop block 19 is provided at the water outlet 18 in the second compartment 21 for slowing down the flow rate of water.

[0033] The entrance of the pre-treatment port 2 is paved with permeable bricks (porosity 35%) to intercept large particles of debris. The guide plate 3 is a triangular steel plate inclined at 30 degrees, which guides floating objects on the water surface to the collection boxes 4 on both sides. Activated carbon-zeolite composite adsorption rods 15 are suspended in the first compartment 13 with a spacing of 20 cm; interception plates 10 are staggered in the second compartment 21, and the water flow path between the plates is S-shaped to extend the residence time. The stop block 19 is a honeycomb rubber structure, installed in front of the water outlet 18. After the sewage is initially filtered by the permeable bricks, the surface garbage is separated by the guide plate 3, enters the first compartment 13, and the dissolved pollutants are adsorbed by the adsorption rods 15, and then enters the second compartment through the second filter screen 14. The interception plate 10 further intercepts microparticles, and the stop block 19 reduces the flow rate to promote sedimentation.

[0034] In order to further optimize the above technical solution, the sewage collecting unit is arranged at the bottom of the second compartment 21, and includes a sedimentation tank 5, which is connected to a conduit 6 through a sewage suction pump for sewage discharge.

[0035] The sedimentation tank 5 occupies 30% of the bottom area of the first compartment 13. A conduit 6 connects to an external sludge drying tank. The sedimentation tank 5 collects suspended sludge, and a control device 9 periodically activates a suction pump to discharge the sludge. The sedimentation tank 5 collects the intercepted sludge and plant debris, which are then anaerobic fermented to produce organic fertilizer for reuse in farmland.

[0036] In order to further optimize the above technical solution, triangular sedimentation weirs 16 are provided at both ends of the bottom of the first compartment 13. The slope of the sedimentation weir 16 is facing the opening of the sedimentation tank 5, so that the sediment in the first compartment 13 slides into the sedimentation tank 5 through the sedimentation weir 16.

[0037] The triangular sedimentation weir 16 is preferably made of stainless steel, with a slope of 45° and a distance of 2 cm between the bottom end and the opening of the sedimentation tank 5. The sludge at the bottom of the first compartment 13 slides into the sedimentation tank 5 along the sedimentation weir 16 under the action of gravity to avoid siltation in the compartment.

[0038] In order to further optimize the above technical solution, the guide plate 3 is a triangular plate that can divert garbage floating on the water surface and in shallow water areas into the collection box 4.

[0039] When the water flow hits the guide plate 3 , the scum is guided into the collection box 4 due to the influence of the inclination angle of the plate surface and the plate side.

[0040] Please see the attached Figure 3 In order to further optimize the above technical solution, the interception plate 10 is provided with a accommodating chamber inside, and multiple penetration holes are provided on both sides of the surface. The accommodating chamber can be used to place chemicals to flow out through the penetration holes to neutralize harmful substances in the water.

[0041] The filling in the receiving chamber of the interception plate 10 can be adjusted according to the data fed back by the detector 20. For example, if the agricultural non-point source polluted water is acidic, preferably lime (CaO), calcium hydroxide (Ca(OH)2), sodium hydroxide (NaOH), etc. can be added. When the water flows through the permeation hole, the mixture slowly releases the compounds therein to achieve acid-base neutralization.

[0042] Please see the attached Figure 4 To further optimize the above technical solution, a partition plate 71 is provided inside the first storage tank 7 to divide the interior of the first storage tank 7 into multiple accommodating chambers, and a baffle is also provided on the partition plate 71; the first storage tank 7 is rotatably connected to a control plate 81, and the control plate 81 has a through hole and a control shaft at the center thereof, which is electrically connected to the control device 9; rotating the control plate 81 can control the outflow of chemicals from different accommodating chambers of the first storage tank 7.

[0043] The first storage tank 7 can hold various flocculants, such as polyaluminum chloride (PAC) and polyferric sulfate (PFS). These hydrolyze in water to produce positively charged colloids, which attract negatively charged suspended particles in the water, causing coagulation and flocculation, forming larger flocculent particles that facilitate adsorption and sedimentation separation by the adsorption rods 15. The first storage tank 7 is driven by a motor in the control device 9. The control panel 81 rotates based on water quality data fed back by the control device 9, allowing the corresponding chamber's reagent to fall into the water flow through the through-holes, precisely controlling the dosage.

[0044] In order to further optimize the above technical solution, a releaser 17 is provided at the bottom of the second storage tank 8 . The releaser 17 has multiple penetration holes, and the releaser 17 penetrates into the interior of the second compartment 21 .

[0045] The releaser 17 is a porous ceramic tube with built-in oxidants such as ozone (O3), hydrogen peroxide (H2O2), potassium permanganate (KMnO4) and other chemicals, which can oxidize and decompose organic pollutants into harmless substances such as carbon dioxide and water.

[0046] In order to further optimize the above technical solution, a plurality of detectors 20 are provided inside the main body 1 for detecting changes in water quality.

[0047] The detector 20 uses a multi-parameter sensor (monitoring pH, turbidity, and conductivity), and the data is uploaded to the control device 9 every 10 minutes. When the water quality data triggers a threshold (such as turbidity > 50 NTU), the sewage suction pump is automatically started or the drug injection rate is adjusted.

[0048] In order to further optimize the above technical solution, the control device 9 includes a motor, a battery, a control panel, control buttons and a display screen 11 , and the control device 9 is electrically connected to the first storage tank, the pollution collection unit and the detector 20 .

[0049] The control device 9 integrates a PLC controller with a preset PID algorithm, and the display screen 11 displays water quality parameters and device status in real time. The motor drives the control panel 81 to rotate the angle, the battery provides off-grid power, and the button supports manual intervention mode.

[0050] In order to further optimize the above technical solution, a receiving chamber is provided in the filter screens 12 and 14 .

[0051] The thickness of the cavity placed in the interlayer of the filter screens 12 and 14 is 3 cm, and can be filled with diatomaceous earth particles, zeolite, biochar composite filler or pollution-resistant plants (such as calamus and windmill grass) to absorb dissolved nitrogen, phosphorus and pesticides.

[0052] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0053] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An ecological interception device for agricultural non-point source pollution, characterized in that: include: A hollow main body (1) is provided with a pretreatment port (2) at one end and a water outlet (18) at the other end; a permeable brick is provided at the water inlet of the pretreatment port (2); the upper edge of the pretreatment port (2) is fixedly connected to a guide plate (3); and collection boxes (4) are provided on both sides of the pretreatment port (2); a sewage collecting unit is provided below the main body (1); the interior of the main body (1) is divided into a first compartment (13) and a second compartment (21); a first compartment (13) is provided between the first compartment (13) and the pretreatment port (2). A filter screen (12) is provided, and a second filter screen (14) is provided between the first compartment (13) and the second compartment (21); a first storage tank (7), a control device (9), an interception plate (10) and a second storage tank (8) are sequentially provided on the top of the main body (1); a plurality of adsorption rods (15) are suspended inside the first compartment (13); a plurality of interception plates (10) are provided inside the second compartment (21); a flow stop block (19) is provided at the water outlet (18) in the second compartment (21) for slowing down the flow rate of water.

2. The agricultural non-point source pollution ecological interception device according to claim 1 is characterized in that: The sewage collecting unit is arranged at the bottom of the second compartment (21) and comprises a sedimentation tank (5). The sedimentation tank (5) is connected to a conduit (6) via a sewage suction pump for sewage discharge.

3. The agricultural non-point source pollution ecological interception device according to claim 2 is characterized in that: Triangular sedimentation weirs (16) are provided at both ends of the bottom of the first chamber (13). The slope of the sedimentation weir (16) faces the opening of the sedimentation tank (5), so that the sediment in the first chamber (13) slides through the sedimentation weir (16) and falls into the sedimentation tank (5).

4. The agricultural non-point source pollution ecological interception device according to claim 1, characterized in that: The guide plate (3) is a triangular plate that can divert garbage floating on the water surface and in shallow water areas into a collection box (4).

5. The agricultural non-point source pollution ecological interception device according to claim 1, characterized in that: The interception plate (10) is provided with a receiving chamber inside, and a plurality of penetration holes are provided on both side surfaces. The receiving chamber can be used to place chemicals to flow out through the penetration holes to neutralize harmful substances in the water.

6. The ecological interception device for agricultural non-point source pollution according to claim 1 is characterized in that: A partition plate (71) is provided inside the first storage tank (7) to divide the interior of the first storage tank (7) into a plurality of accommodating chambers, and a baffle is also provided on the partition plate (71); the first storage tank (7) is rotatably connected to a control plate (81), the control plate (81) is provided with a through hole, a control shaft is provided at the center position, and the control shaft is electrically connected to the control device (9); rotating the control plate (81) can control the outflow of chemicals in different accommodating chambers of the first storage tank (7).

7. The agricultural non-point source pollution ecological interception device according to claim 1, characterized in that: A releaser (17) is provided at the bottom of the second storage tank (8). The releaser (17) has a plurality of penetration holes, and the releaser (17) extends deep into the interior of the second chamber (21).

8. The ecological interception device for agricultural non-point source pollution according to claim 1 is characterized in that: A plurality of detectors (20) are provided inside the main body (1) for detecting changes in water quality.

9. The ecological interception device for agricultural non-point source pollution according to claim 1, characterized in that: The control device (9) comprises a motor, a battery, a control panel, control buttons and a display screen (11). The control device (9) is electrically connected to the first storage tank, the pollution collection unit and the detector (20).

10. The ecological interception device for agricultural non-point source pollution according to claim 1, characterized in that: A accommodating chamber is provided in the filter screen (12, 14).

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