Sewage treatment equipment for environmental protection engineering

Abstract

The invention relates to sewage treatment equipment for environmental protection engineering, belongs to the technical field of sewage treatment, and aims to solve the problems that bubbles generated by a traditional aeration mode are generally larger in diameter, higher in rising speed, lower in oxygen utilization rate and incapable of being fully mixed with sewage, the sewage treatment equipment comprises a sewage treatment box and an aerobic cavity formed in the sewage treatment box, pump bodies are installed on the two sides of the sewage treatment box, a plurality of jet flow pieces are fixedly installed in the aerobic cavity, the pump bodies communicate with the jet flow pieces through pipelines, a suction shell is installed at one end of each jet flow piece, one side of each suction shell communicates with a water outlet pipe, and a rotating piece is installed in the water outlet pipe. The diameter of bubbles is remarkably reduced, the specific surface area is greatly increased, meanwhile, the swing plate changes the rising path of the bubbles, the retention time of the bubbles in sewage is prolonged, oxygen has more sufficient time to be dissolved, and the problem that the oxygen utilization rate of traditional aeration is low is effectively solved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a wastewater treatment device for environmental protection engineering. Background Technology

[0002] Against the backdrop of accelerated global industrialization and urbanization, the contradiction between water supply and demand and water pollution have become increasingly prominent, becoming one of the core challenges restricting sustainable socio-economic development and threatening ecosystem stability. In the field of environmental protection engineering, aerobic biological treatment is the core process of wastewater treatment, and the performance of the aeration system, as the oxygen supply core of aerobic treatment, directly determines the wastewater degradation efficiency and operating costs. Currently, the mainstream traditional aeration methods include perforated pipe aeration and ordinary diffuser plate aeration.

[0003] Current wastewater treatment equipment used in environmental protection projects typically produces large-diameter bubbles with faster rising speeds, resulting in lower oxygen utilization. A large amount of air escapes to the water surface without being utilized by microorganisms. When large-diameter bubbles rise, the surrounding water flow is less disturbed, making it difficult to mix them thoroughly with the wastewater. The gas-liquid interface on the bubble surface is updated slowly, resulting in low efficiency of oxygen transfer to the wastewater. Oxygen cannot diffuse sufficiently from the inside of the bubbles into the wastewater, and most of the air escapes directly to the water surface without being absorbed and utilized by aerobic microorganisms, causing ineffective aeration.

[0004] To address the above issues, a wastewater treatment device for environmental protection engineering is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a wastewater treatment device for environmental protection engineering. By using this device, the problems of traditional aeration methods mentioned above are solved, such as the bubbles being typically large in diameter, rising rapidly, having low oxygen utilization, and failing to mix sufficiently with wastewater.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A wastewater treatment device for environmental protection engineering includes a wastewater treatment tank and an aerobic chamber inside the wastewater treatment tank. Pumps are installed on both sides of the wastewater treatment tank. Several jet components are fixedly installed inside the aerobic chamber, and the pumps are connected to the jet components via pipes. A suction shell is installed at one end of each jet component, and an outlet pipe is connected to one side of the suction shell. A rotating component is installed inside the outlet pipe, and a lifting component is fixedly installed at one end of the rotating component, contacting one end of the outlet pipe. A disc is fixedly installed on the surface of the outlet pipe, and four vertical plates are evenly fixedly installed on the outer circumference of the disc. Four swing plates are inclinedly arranged on one side of the four vertical plates, and a guide component is fixedly installed at one end of the uppermost swing plate, with the lifting component contacting the guide component. An air inlet pipe is connected to one side of the suction shell, and one end of the air inlet pipe extends out of the aerobic chamber.

[0007] Furthermore, an anaerobic chamber is provided inside the sewage treatment tank near the aerobic chamber. A sewage pipe is installed through one end of the sewage treatment tank and extends into the anaerobic chamber. A sedimentation chamber is provided inside the sewage treatment tank, and a drainage frame is installed on the inner wall of the sedimentation chamber. A clean water disinfection chamber is provided inside the sewage treatment tank near the sedimentation chamber.

[0008] Furthermore, two horizontal plates are fixedly installed on one side of the sewage treatment tank, and a high-frequency power supply is installed on one side of each horizontal plate. Two cylinders are fixedly installed on one side of the horizontal plates, and the air inlet pipe is connected to the cylinders. An electromagnetic coil is installed inside the cylinder, and the high-frequency power supply is electrically connected to the electromagnetic coil through a wire.

[0009] Furthermore, the jetting component includes a first tube and a nozzle fixedly installed inside the first tube.

[0010] Furthermore, an inhalation chamber is provided inside the inhalation shell.

[0011] Furthermore, the water outlet pipe includes a throat section and a diffuser section fixed to one end of the throat section, with a second pipe body fixedly installed at one end of the diffuser section.

[0012] Furthermore, the rotating component includes two connecting plates and a rotating rod rotatably connected to one side of the two connecting plates. Both connecting plates are fixedly connected to the inner wall of the second tube, and a propeller is fixedly installed at one end of the rotating rod.

[0013] Furthermore, the lifting component includes a support rod and four fixing plates evenly fixed on the surface of the support rod. The support rod is fixedly connected to the rotating rod, and a top rod is fixedly installed at one end of each fixing plate.

[0014] Furthermore, a connecting plate is fixedly installed at one end of the swing plate, and the four swing plates are connected by the connecting plate. A rotating plate is fixedly installed at the other end of the swing plate. Insert rods are fixedly installed on both sides of the rotating plate, and the insert rods are rotatably connected to the vertical plate. A torsion spring is fixedly installed at one end of the insert rod, and the torsion spring is fixedly connected to the vertical plate. A fixing rod is fixedly installed inside one end of the swing plate, and the connecting plate is rotatably connected to the fixing rod.

[0015] Furthermore, the guide includes an extension plate and an inclined plate fixed to one side of the extension plate, and the top rod is in contact with the inclined plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through jet crushing and rotary shearing, the bubble diameter is significantly reduced and the specific surface area is greatly increased. At the same time, the oscillating plate changes the bubble rising path and prolongs its residence time in the wastewater, allowing oxygen to dissolve more fully and effectively solving the problem of low oxygen utilization in traditional aeration.

[0017] 2. The dynamic water flow disturbance created by the swing plate breaks the local bubble accumulation phenomenon of traditional aeration, so that the bubbles are evenly distributed to all areas of the aerobic chamber. The all-round water flow mixing ensures that the dissolved oxygen concentration is consistent throughout the aerobic chamber, avoiding local hypoxia or hyperxia, and providing a stable living environment for microorganisms.

[0018] 3. The high-speed jet violently impacts and shears the air inside the suction shell to achieve primary mixing. The rotating component further shears and stirs to prevent bubble aggregation. Combined with electromagnetic field polarization treatment, the affinity between oxygen molecules and water molecules is enhanced. Under multiple effects, the gas-liquid mixing efficiency and stability are improved.

[0019] 4. The high-frequency electromagnetic field increases the repulsive force between polarized air molecules, which can effectively reduce bubble aggregation and maintain the dispersed state of bubbles even in high-viscosity wastewater. Combined with the stirring action of the rotating parts, it further ensures the bubble refinement effect.

[0020] 5. The alternating up-and-down swing of the swing plate creates local circulation and overall convection, which drives the movement of surrounding sewage and promotes the flow of sewage from afar toward the disc, achieving all-round, dead-angle-free water mixing in the aerobic chamber and improving overall treatment efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the jetting component structure of the present invention; Figure 3 This is a schematic diagram of the wastewater treatment tank structure of the present invention; Figure 4 This is a schematic diagram of the water outlet pipe structure of the present invention; Figure 5 This is a schematic diagram of the lifting component structure of the present invention; Figure 6 This is a schematic diagram of the guide component structure of the present invention; Figure 7 This is a schematic diagram of the swing plate structure of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the structure at point A in the middle; Figure 9 For the present invention Figure 7 Schematic diagram of the structure at point B.

[0022] In the diagram: 1. Wastewater treatment tank; 11. Anaerobic chamber; 12. Wastewater pipe; 13. Sedimentation chamber; 14. Drainage frame; 15. Clean water disinfection chamber; 16. Horizontal plate; 17. High-frequency power supply; 18. Cylinder; 19. Electromagnetic coil; 2. Aerobic chamber; 3. Pump body; 4. Jet component; 41. First pipe body; 42. Nozzle; 5. Suction shell; 51. Suction chamber; 6. Outlet pipe; 61. Throat section; 62. Diffusion section; 63. 7. Second tube body; 8. Rotating component; 9. Connecting plate; 10. Rotating rod; 11. Propeller; 22. Lifting component; 33. Support rod; 44. Fixing plate; 5. Top rod; 6. Disc; 75. Vertical plate; 86. Swinging plate; 9. Connecting plate; 10. Rotating plate; 11. Insert rod; 22. Torsion spring; 23. Fixing rod; 44. Guide component; 55. Extension plate; 66. Inclined plate; 77. Intake pipe. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] To address the technical problems of traditional aeration methods, such as the fact that bubbles are typically large in diameter, rise rapidly, have low oxygen utilization, and fail to mix adequately with wastewater, [further measures are needed]. Figures 1-9 As shown, the following preferred technical solutions are provided: like Figures 1-2 As shown, a wastewater treatment device for environmental protection engineering includes a wastewater treatment tank 1 and an aerobic chamber 2 located inside the wastewater treatment tank 1. Pump bodies 3 are installed on both sides of the wastewater treatment tank 1. Several jet elements 4 are fixedly installed inside the aerobic chamber 2, and the pump bodies 3 are connected to the jet elements 4 through pipes. The pump bodies 3 provide high-pressure power to the jet elements 4, causing wastewater to be ejected at high speed from the jet elements 4. The kinetic energy of the high-speed water flow is used to form a stable negative pressure in the suction shell 5, allowing air to be drawn in through the air inlet pipe 40 without the need for an additional air pump. This achieves an energy-saving air intake mode that uses water to carry air, reducing the energy consumption of independent aeration equipment. The high-speed jet characteristics of the jet elements 4 ensure the initial kinetic energy of the gas-liquid mixture, providing a basic condition for subsequent bubble breakage. Compared with traditional aeration methods, the initial energy utilization rate is higher. The distributed installation of multiple jet elements 4 in the aerobic chamber 2 can achieve multi-point synchronous aeration, avoiding the problem of excessively high local concentration caused by a single aeration point.

[0025] One end of the jet component 4 is equipped with an intake shell 5, and one side of the intake shell 5 is connected to an outlet pipe 6. Inside the outlet pipe 6, a rotating component 7 is installed. The rotating component 7 is driven entirely by high-speed water flow without the need for an additional power source, thus realizing the reuse of water flow energy and further reducing energy consumption. The shearing force generated by the high-speed rotation can further refine the initially broken bubbles into microbubbles, significantly increasing the specific surface area of ​​the bubbles and improving the efficiency of oxygen transfer from the gas phase to the liquid phase. The continuous rotation of the rotating component 7 forms a dynamic stirring of the gas-liquid mixture, effectively preventing bubble aggregation and fusion, maintaining the dispersed state of the bubbles, and extending the effective residence time of the bubbles in the water. One end of the rotating component 7 is fixedly equipped with a lifting component 8, which is in contact with one end of the outlet pipe 6. A disc 9 is fixedly installed on the surface of the outlet pipe 6. Four vertical plates 10 are evenly fixedly installed on the outer periphery of the disc 9, and four swing plates 20 are inclinedly arranged on one side of the four vertical plates 10.

[0026] Four tilted oscillating plates 20 form a three-dimensional water flow disturbance, which can cover a larger range of action and solve the problem of limited influence area of ​​traditional aeration equipment. The alternating pushing water flow characteristics force the bubbles to change their vertical upward path and move along a zigzag or spiral line, which prolongs the residence time of the bubbles in the aerobic chamber 2 and significantly improves oxygen utilization. The local circulation and overall convection formed by dynamic oscillation enable the sewage to be mixed in all directions in the aerobic chamber 2, avoiding the treatment efficiency caused by local hypoxia. The rotational kinetic energy of the rotating part 7 is converted into the reciprocating motion kinetic energy of the oscillating plate 20 without the need for an additional drive device, which simplifies the equipment structure and reduces energy consumption. The uppermost oscillating plate 20 is fixedly installed with a guide 30, and the lifting part 8 is in contact with the guide 30. The suction shell 5 is connected to an air inlet pipe 40 on one side, and one end of the air inlet pipe 40 extends out of the aerobic chamber 2. The suction shell 5 is directly connected to the outside through the air inlet pipe 40, which reduces the pressure loss during the air transportation process.

[0027] First, after the filtered wastewater enters the aerobic chamber 2, the pumps 3 on both sides start working to pressurize the wastewater. The pressurized wastewater is then transported through pipes to multiple jet nozzles 4 inside the aerobic chamber 2 and ejected at high speed from the jet nozzles 4. The high-speed water flow enters the suction shell 5 at extremely high speed. According to fluid mechanics, when the high-speed jet flows inside the suction shell 5, it will rapidly drive the surrounding air or liquid to flow rapidly. This breaks the originally relatively stable fluid state inside the suction shell 5, and the internal pressure is significantly lower than the external atmospheric pressure, thus creating a negative pressure environment inside the suction shell 5. Since the suction shell 5 is connected to the outside through the air inlet pipe 40, under the action of this internal and external pressure difference, outside air is drawn in through the air inlet pipe 40. After the air enters, it undergoes violent collision and shearing action with the high-speed water flow inside the suction shell 5. The originally large air mass is broken into smaller microbubbles, completing the primary stage of gas-liquid mixing.

[0028] After the gas-liquid mixture undergoes primary treatment, it enters the outlet pipe 6. The high-speed water flow impacts the rotating component 7 inside the outlet pipe 6, causing it to rotate at high speed under the power of the water flow. During the rotation, the rotating component 7 generates a strong shearing force on the gas-liquid mixture that has just flowed out, further cutting the small bubbles that are not completely broken into microbubbles with smaller diameters. At the same time, the continuous rotation of the rotating component 7 plays a stirring role in the mixture, effectively preventing the bubbles from agglomerating and merging, and ensuring that the bubbles always remain dispersed. When the rotating component 7 rotates, it drives the lifting component 8 to rotate synchronously. During the rotation, the lifting component 8 forms a periodic cooperation with the guide component 30 on the uppermost swing plate 20, causing the four swing plates 20 on the outer periphery of the disc 9 to swing up and down alternately. This dynamic swing creates a unique alternating pushing water flow effect. When the swing plate 20 swings upward, it pushes some bubbles upward. When the swing plate 20 swings downward, it presses some bubbles against the bottom or side of the pool, forcing the bubbles to change their traditional vertical upward trajectory and move along a zigzag or spiral path.

[0029] Meanwhile, the dynamic disturbance of the swing plate 20 creates a dual water flow motion within the aerobic chamber 2. On the one hand, it drives the surrounding sewage to move up and down with the swing plate 20, forming a local circulation. On the other hand, it promotes the flow of sewage from a distance toward the disc 9, forming an overall convection. Ultimately, this achieves all-round, dead-angle-free water mixing within the aerobic chamber 2. Therefore, through the two-stage treatment of jet breaking and rotational shearing, the bubble diameter is significantly reduced, and the specific surface area is greatly increased, greatly improving the gas-liquid contact efficiency. At the same time, the change in the bubble's rising path prolongs its residence time in the sewage, allowing oxygen more time to dissolve into the sewage. This effectively solves the problem of low oxygen utilization in traditional aeration. The dynamic water flow disturbance formed by the swing plate 20 breaks the local bubble accumulation phenomenon of traditional aeration, allowing bubbles to be evenly distributed in all areas of the aerobic chamber 2. The all-round water flow mixing ensures the consistency of dissolved oxygen concentration throughout the aerobic chamber 2, avoiding local hypoxia or hyperxia, and providing a stable living environment for microorganisms.

[0030] like Figure 3As shown, an anaerobic chamber 11 is located inside the wastewater treatment tank 1 near the aerobic chamber 2. A wastewater pipe 12 is installed through one end of the wastewater treatment tank 1. The anaerobic chamber 11 serves as the first treatment unit after the wastewater enters the equipment, and works with the wastewater pipe 12 to perform pretreatment. Wastewater is directly transported to the anaerobic chamber 11 through the wastewater pipe 12. Under the action of anaerobic microorganisms, the large, difficult-to-degrade organic molecules in the wastewater can be decomposed into smaller organic molecules, reducing the treatment load of the subsequent aerobic chamber 2 and improving the overall wastewater treatment efficiency. One end of the wastewater pipe 12 extends into the anaerobic chamber 11. A sedimentation chamber 13 is located inside the wastewater treatment tank 1, and a guide is installed on the inner wall of the sedimentation chamber 13. The mixed liquid treated by the aerobic chamber 2 enters the sedimentation chamber 13 through the flow frame 14. The flow frame 14 can guide the water flow to be evenly distributed, avoiding sludge disturbance caused by excessive local water flow, so that the sludge particles can settle fully, reduce the suspended solids content of the effluent, and improve the water clarity. The sewage treatment tank 1 has a clear water disinfection chamber 15 near the sedimentation chamber 13. The supernatant water after treatment in the sedimentation chamber 13 has more stable water quality and low suspended solids content, and can directly enter the clear water disinfection chamber 15. By adding disinfectant, residual bacteria, viruses and other pathogenic microorganisms in the sewage can be effectively killed, ensuring that the effluent meets the discharge standards and avoiding biological pollution to the water environment after discharge.

[0031] like Figure 4 As shown, the jet component 4 includes a first tube 41 and a nozzle 42 fixedly installed inside the first tube 41. The water flow is accelerated by the sharp reduction in the cross-sectional area inside the nozzle 42. The design of the sharply reduced cross-sectional area of ​​the nozzle 42 can greatly increase the water flow velocity under the same pump body 3 pressure. The high-speed jet forms a stronger negative pressure environment in the suction shell 5. The high-speed jet and the sucked air form a violent turbulent state in the suction shell 5. The kinetic energy of the water flow is converted into the impact force and shear force of the gas-liquid mixture, which can initially break the air into small bubbles.

[0032] The suction shell 5 has a suction chamber 51 inside. When the high-speed water flow mixes with the air in the suction chamber 51, it will generate an impact. The chamber structure of the suction chamber 51 can play a buffering role, disperse the impact force, and prevent the high-speed airflow or water flow from directly impacting the inner wall of the suction shell 5 or the subsequent water outlet pipe 6 interface, thereby reducing component wear, extending the service life of the suction shell 5 and the water outlet pipe 6, and reducing the frequency of equipment maintenance and replacement.

[0033] The outlet pipe 6 includes a throat section 61 and a diffuser section 62 fixed at one end of the throat section 61. A second pipe body 63 is fixedly installed at one end of the diffuser section 62. The high-speed flowing mixed flow forms strong turbulence in the throat section 61. The vortex effect generated by the turbulence can break the tendency of bubble aggregation. Even if the polarized air molecules still have the tendency to aggregate, they can be further dispersed by turbulent disturbance, ensuring that the bubbles always remain in an independent and dispersed state. After the gas-liquid mixed flow passes through the high-speed flow of the throat section 61, the kinetic energy is high but the pressure is low. The diffuser section 62 converts some of the kinetic energy into pressure energy by expanding the cross-sectional area, reducing the energy loss of the mixed flow during the flow process, avoiding premature escape of bubbles due to sudden pressure drop, and prolonging the residence time of bubbles in the sewage. The second pipe body 63 ensures the uniform distribution of the mixed flow, further improving the oxygen transfer efficiency and the uniformity of dissolved oxygen distribution in the aerobic chamber 2.

[0034] like Figure 5 As shown, the rotating component 7 includes two connecting plates 71 and a rotating rod 72 rotatably connected to one side of the two connecting plates 71. The two connecting plates 71 are symmetrically fixed to the inner wall of the second tube 63, providing bidirectional stable support for the rotating rod 72 and preventing it from shifting or swaying due to uneven force during high-speed rotation. Both connecting plates 71 are fixedly connected to the inner wall of the second tube 63. A propeller 73 is fixedly installed at one end of the rotating rod 72. The blades of the propeller 73 are inclined, and during high-speed rotation, it will generate a strong shearing force on the gas-liquid mixture, which can further cut the small bubbles delivered from the diffuser section 62 into smaller particles. Microbubbles significantly increase the specific surface area of ​​the bubbles, improving the efficiency of oxygen transfer from the gas phase to the liquid phase. The rotation of propeller 73 also acts as a stirrer, driving the surrounding mixed flow to form a local circulation, breaking the tendency of bubble aggregation. Even in high-viscosity wastewater, the bubbles can be maintained in a dispersed state. At the same time, stirring allows the microbubbles to come into more thorough contact with the wastewater, preventing the bubbles from rising rapidly along the pipe wall and escaping, thus prolonging the bubble residence time. Propeller 73 is driven entirely by water flow power, without the need for additional motors or hydraulic devices. Compared with traditional electric stirring structures, this reduces the energy consumption and failure risk of independent power sources.

[0035] The lifting component 8 includes a support rod 81 and four fixing plates 82 evenly fixed on the surface of the support rod 81. The support rod 81 is fixedly connected to the rotating rod 72. A top rod 83 is fixedly installed at one end of the fixing plate 82. The support rod 81 ensures stable transmission of kinetic energy, the fixing plate 82 achieves uniform force distribution, and the top rod 83 completes the adaptation and linkage with the guide component 30. This structure does not require additional power. It can drive the swing plate 20 to form a regular alternating pushing water flow by relying only on the kinetic energy of the rotating component 7. This simplifies the equipment structure and ensures the effect of water flow disturbance and bubble path optimization.

[0036] like Figures 6-9As shown, a connecting plate 201 is fixedly installed at one end of the swing plate 20. The four swing plates 20 are connected by the connecting plate 201. The core function of the connecting plate 201 is to unify the swing rhythm and amplitude, so that the driving force of the top rod 83 on a single swing plate 20 can be transmitted to all swing plates 20, making the four swing plates 20 swing up and down synchronously. This avoids the swing disorder caused by uneven force on a single plate, ensures that the water flow disturbance intensity in each area of ​​the aerobic chamber 2 is consistent, and improves the uniformity of dissolved oxygen distribution. A rotating plate 202 is fixedly installed at the other end of the swing plate 20, and insert rods 203 are fixedly installed on both sides of the rotating plate 202. The insertion rod 203 is rotatably connected to the vertical plate 10. A torsion spring 204 is fixedly installed at one end of the insertion rod 203, and one end of the torsion spring 204 is fixedly connected to the vertical plate 10. A fixing rod 205 is fixedly installed inside one end of the swing plate 20. The connecting plate 201 is rotatably connected to the fixing rod 205. When the top rod 83 pushes the swing plate 20 to swing upward, the torsion spring 204 deforms and stores elastic potential energy. The elastic force of the torsion spring 204 is greater than the resistance of the water to the swing plate 20. After the top rod 83 leaves, the torsion spring 204 releases potential energy and drives the swing plate 20 to automatically reset. The swing and reset cycle can be completed without additional power, ensuring a stable swing rhythm.

[0037] The guide member 30 includes an extension plate 301 and an inclined plate 302 fixed to one side of the extension plate 301. The push rod 83 is in contact with the inclined plate 302. The inclined plate surface design can convert the rotational circular motion of the push rod 83 into a vertical thrust. When the push rod 83 rotates with the support rod 81 and contacts the inclined plate 302, the inclined surface will generate an upward component force, pushing the swing plate 20 to swing upward around the insertion rod 203. As the push rod 83 continues to rotate and disengages from the contact, the swing plate 20 returns to its original position under the action of the torsion spring 204. This can be stably converted into the up and down swing of the swing plate 20, ensuring the continuous stability of the alternating push water flow, thereby achieving bubble path optimization and all-round mixing of sewage.

[0038] To address the technical problem of potential bubble aggregation in high-viscosity wastewater, such as... Figure 3As shown, the following preferred technical solution is provided: Two horizontal plates 16 are fixedly installed on one side of the sewage treatment tank 1. A high-frequency power supply 17 is installed on one side of each horizontal plate 16. Two cylinders 18 are fixedly installed on one side of the horizontal plates 16. An air inlet pipe 40 is connected to the cylinders 18. An electromagnetic coil 19 is installed inside the cylinder 18, and the high-frequency power supply 17 is electrically connected to the electromagnetic coil 19 through a wire. The two horizontal plates 16 on one side of the sewage treatment tank 1 provide stable support for the high-frequency power supply 17 and the cylinders 18. When the high-frequency power supply 17 is started, it provides a high-frequency current to the electromagnetic coil 19 inside the cylinder 18 through the wire, causing the electromagnetic coil 19 to... A high-frequency alternating electromagnetic field is generated around coil 19. Before entering the intake shell 5, the air delivered by intake pipe 40 flows through the electromagnetic field region inside cylinder 18. Under the action of high-frequency electric field, oxygen and nitrogen molecules in the air are polarized, and the positive and negative charge centers inside the molecules are separated to form polar molecules. The affinity between polarized oxygen molecules and water molecules is significantly enhanced. When air enters the intake shell 5 and mixes with sewage, oxygen molecules are more likely to integrate into the gaps between water molecules and are less likely to form independent large bubbles on the surface of sewage. At the same time, the repulsive force between polarized air molecules increases, which can reduce bubble aggregation even if the sewage viscosity is high.

[0039] Therefore, the repulsive force between air molecules increases after polarization, which can effectively inhibit bubble aggregation and maintain the dispersed state of bubbles even in high-viscosity wastewater. Combined with the original rotational shearing effect, it further improves the bubble refinement effect.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment equipment for environmental protection engineering, comprising a sewage treatment tank (1) and an aerobic cavity (2) opened in the inside of the sewage treatment tank (1), characterized in that: The sewage treatment tank (1) is provided with pump bodies (3) on both sides, a plurality of jet elements (4) are fixedly installed in the aerobic cavity (2), the pump bodies (3) are communicated with the plurality of jet elements (4) through pipelines, the jet elements (4) are provided with suction shells (5) at one end, the suction shells (5) are communicated with water outlet pipes (6) at one side, the water outlet pipes (6) are provided with rotating elements (7) inside, the rotating elements (7) are fixedly installed with lifting elements (8) at one end, the lifting elements (8) are in contact with one end of the water outlet pipes (6), the water outlet pipes (6) are fixedly installed with discs (9) on the surfaces, the discs (9) are uniformly fixedly installed with four vertical plates (10) on the peripheries, the four vertical plates (10) are provided with four swing plates (20) at one side in an inclined manner, the swing plates (20) at the uppermost end are fixedly installed with guide elements (30) at one end, the lifting elements (8) are in contact with the guide elements (30), the suction shells (5) are communicated with air inlet pipes (40) at one side, and the air inlet pipes (40) extend into the aerobic cavity (2) at one end.

2. The sewage treatment equipment for environmental protection engineering according to claim 1, characterized in that: The sewage treatment tank (1) is provided with an anaerobic cavity (11) near the aerobic cavity (2), a sewage pipe (12) penetrates and is installed at one end of the sewage treatment tank (1), and the sewage pipe (12) extends into the anaerobic cavity (11) at one end, the sewage treatment tank (1) is provided with a sediment cavity (13) inside, the sediment cavity (13) is provided with a drainage frame (14) on the inner wall, and the sewage treatment tank (1) is provided with a clean water disinfection cavity (15) near the sediment cavity (13) inside.

3. The sewage treatment equipment for environmental protection engineering according to claim 1, characterized in that: The sewage treatment tank (1) is fixedly installed with two horizontal plates (16) at one side, the two horizontal plates (16) are fixedly installed with high-frequency power supplies (17) at one side, the horizontal plates (16) are fixedly installed with two cylinders (18) at one side, the air inlet pipes (40) are communicated with the cylinders (18), the cylinders (18) are installed with electromagnetic coils (19) inside, and the high-frequency power supplies (17) are electrically connected with the electromagnetic coils (19) through wires.

4. The sewage treatment equipment for environmental protection engineering according to claim 1, characterized in that: The jet element (4) comprises a first pipe body (41) and a spray head (42) fixedly installed in the first pipe body (41).

5. The sewage treatment equipment for environmental protection engineering according to claim 1, characterized in that: The suction shell (5) is provided with a suction chamber (51) inside.

6. The sewage treatment equipment for environmental protection engineering according to claim 1, characterized in that: The water outlet pipe (6) comprises a throat pipe section (61) and a diffusion section (62) fixed at one end of the throat pipe section (61), and the diffusion section (62) is fixedly installed with a second pipe body (63) at one end.

7. The sewage treatment equipment for environmental protection engineering according to claim 6, characterized in that: The rotating element (7) comprises two connecting plates (71) and a rotating rod (72) rotatably connected at one side of the two connecting plates (71), the two connecting plates (71) are fixedly connected with the inner wall of the second pipe body (63), and the rotating rod (72) is fixedly installed with a propeller (73) at one end.

8. The sewage treatment equipment for environmental protection engineering according to claim 7, characterized in that: The lifting element (8) comprises a supporting rod (81) and four fixing plates (82) fixedly installed on the surface of the supporting rod (81), the supporting rod (81) is fixedly connected with the rotating rod (72), and the fixing plate (82) is fixedly installed with a lifting rod (83) at one end.

9. The sewage treatment equipment for environmental protection engineering according to claim 1, characterized in that: One end of the swing plate (20) is fixedly provided with a connecting plate (201), four swing plates (20) are connected through the connecting plate (201), the other end of the swing plate (20) is fixedly provided with a rotating plate (202), the two sides of the rotating plate (202) are fixedly provided with an inserting rod (203), the inserting rod (203) is rotatably connected with the vertical plate (10), one end of the inserting rod (203) is fixedly provided with a torsion spring (204), one end of the torsion spring (204) is fixedly connected with the vertical plate (10), one end of the swing plate (20) is internally fixedly provided with a fixing rod (205), and the connecting plate (201) is rotatably connected with the fixing rod (205).

10. The sewage treatment equipment for environmental protection engineering according to claim 8, characterized in that: The guide (30) comprises an extending plate (301) and an inclined plate (302) fixed on one side of the extending plate (301), and the top rod (83) is in contact with the inclined plate (302).

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