Urban green space planning sewage treatment device and treatment method

Abstract

The application provides a sewage treatment device and method in urban green space planning, and belongs to the technical field of sewage treatment. The sewage treatment device in urban green space planning comprises a degradation tank, a treatment tank and a pretreatment mechanism. The treatment tank is installed on the surface of the degradation tank, the surface of the treatment tank is provided with a water inlet bin, and the pretreatment mechanism is installed in the inner cavity of the treatment tank. The pretreatment mechanism comprises a filter roller, a waste discharge groove and a material discharge rack. The pretreatment mechanism is arranged, the filter roller is driven to rotate by the first motor, solid impurities on the surface of the filter roller are scraped to the waste discharge groove for collection, when the first gear is engaged with the annular toothed plate, the first gear is driven to rotate by 360 degrees, the waste discharge plate is driven to rotate one circle, the solid impurities in the waste discharge groove are scraped off, and the solid impurities are sent to the storage disc in the waste discharge bin for collection, so that the use is convenient. Meanwhile, air is injected into the hollow part of the first rotating shaft through the through hole, the filter hole is prevented from being blocked, and sufficient oxygen is provided for the growth of aerobic microorganisms.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and more specifically, to a wastewater treatment device and method for urban green space planning. Background Technology

[0002] With the acceleration of urbanization, urban green spaces, as an important component for improving the urban ecological environment and enhancing the quality of life, undertake multiple ecological and social functions. However, during the development and operation of urban green spaces, a large amount of wastewater, such as landscaping water, irrigation water, rainwater runoff, and surrounding domestic sewage, is directly discharged into green spaces or landscape water bodies, easily causing eutrophication, environmental pollution, and water waste. Aerobic biological treatment, as a mature wastewater treatment technology, decomposes organic matter and removes pollutants through microorganisms in an aerobic environment and has been widely used in many water treatment facilities. Applying this method to wastewater treatment in urban green space planning has significant ecological, environmental, and aesthetic value. By using microorganisms to convert organic matter and pollutants such as nitrogen and phosphorus in the water into harmless substances, wastewater purification is achieved.

[0003] However, urban green space sewage usually contains a lot of solid impurities such as grass clippings. Generally, bar screens are used to intercept them and achieve pretreatment of sewage. However, the bar screens need to be cleaned frequently by hand, which is inconvenient. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides a wastewater treatment device and method for urban green space planning that overcomes or at least partially solves the above technical problems.

[0005] This invention is implemented as follows:

[0006] This invention provides a wastewater treatment device for urban green space planning, comprising a degradation tank, a treatment tank, and a pretreatment mechanism. The treatment tank is installed on the surface of the degradation tank, and an inlet chamber is installed on the surface of the treatment tank. The pretreatment mechanism is installed inside the treatment tank for pretreating wastewater. The pretreatment mechanism includes:

[0007] A filter roller, which is rotatably mounted inside the treatment tank, is used to filter solid impurities in wastewater.

[0008] Waste discharge trough, which is formed on the surface of the filter roller, is used to discharge solid impurities;

[0009] A discharge rack is rotatably installed inside the waste discharge trough. A waste discharge plate is slidably installed in the discharge rack and contacts the inner wall of the waste discharge trough to scrape off fixed impurities in the waste discharge trough.

[0010] In a preferred embodiment, a first rotating shaft is fixedly installed in the inner cavity of the filter roller, a first motor is fixedly installed on the side wall of the processing tank, the output end of the first motor is fixedly connected to the first rotating shaft, a first spring is fixedly installed in the inner cavity of the discharge rack, and the other end of the first spring is fixedly connected to the waste discharge plate for driving the waste discharge plate to stick tightly to the inner wall of the waste discharge trough.

[0011] In a preferred embodiment, a first gear is fixedly installed on the side wall of the discharge rack, an annular toothed plate is fixedly installed on the inner wall of the treatment tank, the annular toothed plate meshes with the first gear, a waste discharge bin is installed on the side wall of the treatment tank, and a storage tray is placed on the surface of the degradation tank for collecting solid impurities.

[0012] In a preferred embodiment, the inner cavity of the processing tank has a gas collecting chamber, in which a first piston is slidably mounted. A first protrusion is fixedly mounted on the side wall of the first piston. A second spring is installed in the gas collecting chamber, with one end of the second spring fixedly connected to the first piston and the other end of the second spring fixedly connected to the processing tank. A drive disk is fixedly mounted on the surface of the first rotating shaft, and a second protrusion is fixedly mounted on the surface of the drive disk for driving the first protrusion to move. The first rotating shaft is hollow, and a through hole is opened on the side wall of the first rotating shaft, which communicates with the gas collecting chamber. A plurality of first spray holes are opened on the side wall of the first rotating shaft for injecting air into the inner wall of the filter roller. A first one-way valve is installed on the side wall of the gas collecting chamber for air intake.

[0013] In a preferred embodiment, the inner cavity of the degradation tank is equipped with a dispersing mechanism for dispersing wastewater into the degradation tank. The dispersing mechanism includes a second rotating shaft and a dispersing disc. The second rotating shaft is rotatably installed in the inner cavity of the degradation tank. The dispersing disc is slidably sleeved on the surface of the second rotating shaft for dispersing the wastewater. Spline teeth are fixedly installed on the surface of the second rotating shaft. Spline grooves are formed on the surface of the dispersing disc. The spline teeth mesh with the spline grooves. A float is sleeved on the surface of the second rotating shaft for driving the dispersing disc to move up and down.

[0014] In a preferred embodiment, a second gear is fixedly mounted on the surface of the first rotating shaft, and a third gear is rotatably mounted on the inner wall of the processing tank. The second gear and the third gear mesh with each other. Half gears are fixedly mounted on the side walls of both the second gear and the third gear. A second toothed plate is slidably mounted in the inner cavity of the processing tank, and the second toothed plate meshes with the half gears.

[0015] In a preferred embodiment, a third rotating shaft is rotatably mounted inside the degradation tank. A fourth gear and a fifth gear are fixedly mounted at both ends of the third rotating shaft, respectively. The fourth gear meshes with a second gear plate. A sixth gear is fixedly mounted on the surface of the second rotating shaft, and the sixth gear meshes with the fifth gear.

[0016] In a preferred embodiment, a catalytic mechanism is installed inside the degradation tank cavity. The catalytic mechanism includes a sliding plate, a stirring shaft, and a stirring rod. The sliding plate is slidably installed inside the degradation tank cavity. A slide rail is symmetrically fixedly installed inside the degradation tank cavity, and the slide rail is slidably connected to the sliding plate. A threaded block is fixedly installed on the surface of the sliding plate. A lead screw is rotatably installed inside the degradation tank cavity, and the lead screw is threadedly connected to the threaded block. A second motor is fixedly installed on the side wall of the degradation tank, and the output end of the second motor is fixedly connected to the lead screw. The stirring shaft is symmetrically rotatably installed on both sides of the sliding plate. A stirring rod is fixedly installed on the surface of the stirring shaft. A seventh gear is fixedly installed on the surface of the stirring shaft. A third toothed plate is fixedly installed on the side wall of the slide rail, and the third toothed plate meshes with the seventh gear.

[0017] In a preferred embodiment, an injection cylinder is mounted on the surface of the degradation tank, a second piston is slidably mounted inside the injection cylinder, a connecting shaft is fixedly mounted on the side wall of the second toothed plate, a connecting rod is connected between the connecting shaft and the second piston, and second one-way valves are symmetrically mounted on the side wall of the injection cylinder, one of which is connected to an injection tube, the surface of which has a plurality of second spray holes, an auxiliary agent box is mounted on the surface of the degradation tank for storing enzyme preparations, and another second one-way valve is connected to the auxiliary agent box.

[0018] A wastewater treatment method for urban green space planning, applicable to the aforementioned wastewater treatment device in urban green space planning, includes the following steps:

[0019] S1: Pretreatment; Wastewater is fed into the treatment tank through the inlet chamber. Solid impurities in the wastewater are filtered by the filter roller. The first motor drives the filter roller to rotate, thereby scraping the solid impurities on the surface of the filter roller into the waste discharge trough for collection. When the first gear meshes with the ring toothed plate, it drives the first gear to rotate 360 ​​degrees, causing the waste discharge plate to rotate one revolution, scraping off the solid impurities in the waste discharge trough, and sending them from the waste discharge chamber to the storage tray for collection.

[0020] S2: Dispersion; The first motor drives the filter roller to rotate, which drives the second gear to rotate synchronously and drives the third gear to rotate in the opposite direction. This drives the second toothed plate to move up and down repeatedly through the two half gears, which drives the second rotating shaft and the dispersion disc to rotate, and sprays the sewage flowing from the treatment tank to the surface of the dispersion disc into the degradation tank.

[0021] S3: Catalysis; The second toothed plate moves up and down reciprocally, driving the second piston to move synchronously, causing the two second one-way valves to alternately open, injecting the enzyme preparation into the injection tube, and spraying it into the wastewater through the second spray hole. The second motor can drive the lead screw to rotate, thereby driving the slide plate to move in the inner cavity of the degradation tank. The third toothed plate drives the seventh gear to drive the stirring rod to rotate, and mix the wastewater again.

[0022] The present invention provides a wastewater treatment device and method for urban green space planning, the beneficial effects of which include:

[0023] 1. By setting up a pretreatment mechanism, the first motor drives the filter roller to rotate, scraping solid impurities on the surface of the filter roller into the waste discharge trough for collection. When the first gear meshes with the ring toothed plate, it drives the first gear to rotate 360 ​​degrees, causing the waste discharge plate to rotate one revolution, scraping off the solid impurities in the waste discharge trough and sending them from the waste discharge bin to the storage tray for collection, making it convenient to use. At the same time, when the filter roller rotates, air is injected into the hollow part of the first rotating shaft through the through hole and sprayed into the inner cavity of the filter roller through the first nozzle. On the one hand, it sprays out the impurities in the filter holes to prevent clogging of the filter holes, and on the other hand, it can increase the dissolved oxygen concentration in the water, thereby providing sufficient oxygen for the growth of aerobic microorganisms, promoting the degradation and transformation of organic matter, and ensuring sufficient oxygen supply during the filtration process, so that microorganisms can degrade pollutants more efficiently in the subsequent biological treatment stage.

[0024] 2. By setting up a dispersion mechanism, when the first motor drives the filter roller to rotate, it drives the second toothed plate to move up and down reciprocally through two half gears, which in turn drives the second rotating shaft and the dispersion disc to rotate. This evenly sprays the sewage flowing from the treatment tank to the surface of the dispersion disc into the degradation tank. During the spraying process, the water droplets fly in the air and come into full contact with the air, supplementing additional dissolved oxygen, further enhancing oxygen supply, and improving metabolism and degradation capacity. At the same time, the sewage can be evenly sprayed to the entire biological tank area, avoiding the problem of microbial overload in some areas and lack of substrate in other areas. This enhances the contact and mixing effect between sewage and microorganisms, achieving preliminary mixing. Furthermore, as the sewage level rises, the dispersion disc can be pushed to rise synchronously by the float, thereby adjusting the dispersion range and facilitating use.

[0025] 3. By setting up a catalytic mechanism, when the second toothed plate moves up and down, it drives the second piston to move synchronously, causing the two second one-way valves to alternately open, injecting the enzyme preparation into the injection tube and spraying it into the sewage through the second spray hole. The second motor can drive the lead screw to rotate, thereby driving the slide plate to move in the inner cavity of the degradation tank. The third toothed plate drives the seventh gear to rotate the stirring rod, which mixes the sewage again and improves the efficiency of microbial decomposition. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1This is a frontal perspective view provided by an embodiment of the present invention;

[0028] Figure 2 A side perspective view provided for an embodiment of the present invention;

[0029] Figure 3 A cross-sectional view of the processing tank provided for an embodiment of the present invention;

[0030] Figure 4 A side cross-sectional view provided for an embodiment of the present invention;

[0031] Figure 5 A cross-sectional view of the filter roller provided for an embodiment of the present invention;

[0032] Figure 6 Provided for the embodiments of the present invention Figure 5 Enlarged view of point A in the middle;

[0033] Figure 7 A cross-sectional view of the degradation tank provided for an embodiment of the present invention;

[0034] Figure 8 Partial exploded views provided for embodiments of the present invention;

[0035] Figure 9 This is a cross-sectional view of the degradation tank provided in an embodiment of the present invention.

[0036] In the diagram: 1. Degradation tank; 2. Processing tank; 3. Inlet tank; 4. Pretreatment mechanism; 401. Filter roller; 402. First rotating shaft; 403. First motor; 404. Waste discharge trough; 405. Discharge rack; 406. Waste discharge plate; 407. First spring; 408. First gear; 409. Ring toothed plate; 410. Waste discharge bin; 411. Storage tray; 412. Gas collection chamber; 413. First piston; 414. First protrusion; 415. Second spring; 416. Drive disc; 417. Second protrusion; 418. Through hole; 419. First spray hole; 420. First one-way valve; 5. Dispersion mechanism; 501. Second rotating shaft; 502. Dispersion disc; 503. Spline teeth; 504, float; 505, second gear; 506, third gear; 507, half gear; 508, second gear plate; 509, third rotating shaft; 510, fourth gear; 511, fifth gear; 512, sixth gear; 6, catalytic mechanism; 601, slide plate; 602, slide rail; 603, threaded block; 604, lead screw; 605, second motor; 606, stirring shaft; 607, stirring rod; 608, seventh gear; 609, third gear plate; 610, injection cylinder; 611, second piston; 612, connecting shaft; 613, connecting rod; 614, second one-way valve; 615, injection tube; 616, second spray hole; 617, auxiliary agent tank. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0038] Reference Figures 1-9 As shown, the present invention provides a technical solution: a sewage treatment device for urban green space planning, comprising a degradation tank 1, a treatment tank 2, and a pretreatment mechanism 4. The treatment tank 2 is installed on the surface of the degradation tank 1, and an inlet chamber 3 is installed on the surface of the treatment tank 2 for introducing sewage. The pretreatment mechanism 4 is installed in the inner cavity of the treatment tank 2 for pretreating the sewage. The pretreatment mechanism 4 includes a filter roller 401, a waste discharge trough 404, and a discharge rack 405. The filter roller 401 is rotatably installed in the inner cavity of the treatment tank 2 for filtering solid impurities in the sewage. A first rotating shaft 402 is fixedly installed in the inner cavity of the filter roller 401, and a first rotating shaft 402 is fixedly installed on the side wall of the treatment tank 2. A first motor 403 is provided, and the output end of the first motor 403 is fixedly connected to the first rotating shaft 402. A waste discharge trough 404 is opened on the surface of the filter roller 401 for discharging solid impurities. The first motor 403 can drive the filter roller 401 to rotate, thereby scraping the solid impurities on the surface of the filter roller 401 into the waste discharge trough 404 for collection. The water inlet 3 is abutted against the filter roller 401. The discharge rack 405 is rotatably installed in the inner cavity of the waste discharge trough 404. A waste discharge plate 406 is slidably installed in the discharge rack 405. The waste discharge plate 406 contacts the inner wall of the waste discharge trough 404 for scraping off the fixed impurities in the waste discharge trough 404.

[0039] Reference Figures 1-6 As shown, in a preferred embodiment, a first spring 407 is fixedly installed in the inner cavity of the discharge rack 405. The other end of the first spring 407 is fixedly connected to the waste discharge plate 406, which is used to drive the waste discharge plate 406 to press tightly against the inner wall of the waste discharge trough 404 to ensure the cleaning effect. A first gear 408 is fixedly installed on the side wall of the discharge rack 405. An annular toothed plate 409 is fixedly installed on the inner wall of the treatment tank 2. The annular toothed plate 409 meshes with the first gear 408. A waste discharge bin 410 is installed on the side wall of the treatment tank 2. A storage tray 411 is placed on the surface of the degradation tank 1 for collecting solid impurities. When the first motor 403 drives the filter roller 401 to rotate, the first gear 408 can mesh with the annular toothed plate 409 and drive the first gear 408 to rotate 360 ​​degrees, causing the waste discharge plate 406 to rotate one revolution, scraping off the solid impurities in the waste discharge trough 404, and sending them to the storage tray 411 for collection by the waste discharge bin 410, which is convenient for use.

[0040] Reference Figures 1-6As shown, in a preferred embodiment, the inner cavity of the treatment tank 2 has a gas collecting chamber 412. A first piston 413 is slidably installed in the gas collecting chamber 412. A first protrusion 414 is fixedly installed on the side wall of the first piston 413. A second spring 415 is installed in the gas collecting chamber 412. One end of the second spring 415 is fixedly connected to the first piston 413, and the other end of the second spring 415 is fixedly connected to the treatment tank 2. A drive disk 416 is fixedly installed on the surface of the first rotating shaft 402. A second protrusion 417 is fixedly installed on the surface of the drive disk 416 for driving the first protrusion 414 to move. Under the action of the second spring 415, the first piston 413 can be driven to press tightly against the side wall of the drive disk 416. When the first motor 403 drives the filter roller 401 to rotate, it drives the drive disk 416 to rotate synchronously, thereby passing through... The second protrusion 417 drives the first protrusion 414 to move the first piston 413 back and forth. The first rotating shaft 402 is hollow and has a through hole 418 on its side wall, which is connected to the air collection chamber 412. The side wall of the first rotating shaft 402 has several first spray holes 419 for injecting air into the inner wall of the filter roller 401. On the one hand, this sprays out impurities in the filter holes to prevent clogging, and on the other hand, it increases the dissolved oxygen concentration in the water, thereby providing sufficient oxygen for the growth of aerobic microorganisms, promoting the degradation and transformation of organic matter, and ensuring sufficient oxygen supply during the filtration process. This allows microorganisms to degrade pollutants more efficiently in the subsequent biological treatment stage. The side wall of the air collection chamber 412 is equipped with a first one-way valve 420 for air intake.

[0041] In a preferred embodiment, during use, wastewater is introduced into the treatment tank 2 through the inlet chamber 3. Solid impurities in the wastewater are filtered by the filter roller 401. The first motor 403 drives the filter roller 401 to rotate, scraping the solid impurities on its surface into the waste discharge trough 404 for collection. When the first gear 408 meshes with the annular toothed plate 409, it rotates 360 degrees, causing the waste discharge plate 406 to rotate one revolution, scraping away the solid impurities in the waste discharge trough 404. These impurities are then sent from the waste discharge chamber 410 to the storage tray 411 for collection, facilitating use. Simultaneously, the filter roller 401 rotates... When the first piston 413 moves back and forth, it can drive the drive disc 416 to rotate synchronously, thereby driving the first piston 414 to move back and forth through the second protrusion 417. Air is injected into the hollow part of the first rotating shaft 402 through the through hole 418 and sprayed out into the inner cavity of the filter roller 401 through the first spray hole 419. On the one hand, it sprays out the impurities in the filter hole to prevent the filter hole from being blocked. On the other hand, it can increase the dissolved oxygen concentration in the water, thereby providing sufficient oxygen for the growth of aerobic microorganisms, promoting the degradation and transformation of organic matter, and ensuring that there is enough oxygen supply during the filtration process, so that microorganisms can degrade pollutants more efficiently in the subsequent biological treatment stage.

[0042] Reference Figures 1-9 As shown, in a preferred embodiment, a dispersion mechanism 5 is installed in the inner cavity of the degradation tank 1 for dispersing wastewater into the degradation tank 1. The dispersion mechanism 5 includes a second rotating shaft 501 and a dispersion disk 502. The second rotating shaft 501 is rotatably installed in the inner cavity of the degradation tank 1. The dispersion disk 502 is slidably sleeved on the surface of the second rotating shaft 501 for dispersing wastewater. Spline teeth 503 are fixedly installed on the surface of the second rotating shaft 501. Spline grooves are opened on the surface of the dispersion disk 502. The spline teeth 503 mesh with the spline grooves. A float 504 is sleeved on the surface of the second rotating shaft 501 for driving the dispersion disk 502 to move up and down.

[0043] Reference Figures 1-9 As shown, in a preferred embodiment, a second gear 505 is fixedly mounted on the surface of the first rotating shaft 402, a third gear 506 is rotatably mounted on the inner wall of the treatment tank 2, the second gear 505 and the third gear 506 mesh with each other, half gears 507 are fixedly mounted on the side walls of both the second gear 505 and the third gear 506, a second toothed plate 508 is slidably mounted in the inner cavity of the treatment tank 2, the second toothed plate 508 meshes with the half gears 507, a third rotating shaft 509 is rotatably mounted in the inner cavity of the degradation tank 1, a fourth gear 510 and a fifth gear 511 are fixedly mounted at both ends of the third rotating shaft 509 respectively, the fourth gear 510 meshes with the second toothed plate 508, and a sixth gear 512 is fixedly mounted on the surface of the second rotating shaft 501, the sixth gear 512 meshes with the fifth gear 511.

[0044] In a preferred embodiment, when the first motor 403 drives the filter roller 401 to rotate, it drives the second gear 505 to rotate synchronously and drives the third gear 506 to rotate in the opposite direction. This drives the second toothed plate 508 to move up and down reciprocally through the two half gears 507, and drives the fourth gear 510 to drive the third rotating shaft 509 to rotate reciprocally. This causes the second rotating shaft 501 and the dispersion disc 502 to rotate, so that the sewage flowing from the treatment tank 2 to the surface of the dispersion disc 502 is evenly sprayed into the degradation tank 1. During the spraying process, the water droplets fly in the air and come into full contact with the air, supplementing additional dissolved oxygen, further enhancing oxygen supply, and improving metabolism and degradation capacity. At the same time, the sewage can be evenly sprayed to the entire biological tank area, avoiding the problem of microbial overload in some areas and lack of substrate in other areas. This enhances the contact and mixing effect between sewage and microorganisms, achieving preliminary mixing. As the sewage level rises, the float 504 can push the dispersion disc 502 to rise synchronously, thereby adjusting the dispersion range and facilitating use.

[0045] Reference Figures 1-9As shown, in a preferred embodiment, a catalytic mechanism 6 is installed inside the degradation tank 1. The catalytic mechanism 6 includes a slide plate 601, a stirring shaft 606, and a stirring rod 607. The slide plate 601 is slidably installed inside the degradation tank 1. A slide rail 602 is symmetrically fixedly installed inside the degradation tank 1, and the slide rail 602 is slidably connected to the slide plate 601. A threaded block 603 is fixedly installed on the surface of the slide plate 601. A lead screw 604 is rotatably installed inside the degradation tank 1, and the lead screw 604 is threadedly connected to the threaded block 603. A second motor 605 is fixedly installed on the side wall of the degradation tank 1. The output end of the second motor 605 is fixedly connected to the lead screw 604, and the lead screw can be driven by the second motor 605. The second motor 604 rotates, thereby driving the slide plate 601 to move within the degradation tank 1. The stirring shaft 606 is symmetrically rotated and installed on both sides of the slide plate 601. A stirring rod 607 is fixedly installed on the surface of the stirring shaft 606 for remixing the wastewater and improving the contact between microorganisms and wastewater. A seventh gear 608 is fixedly installed on the surface of the stirring shaft 606. A third toothed plate 609 is fixedly installed on the side wall of the slide rail 602. The third toothed plate 609 meshes with the seventh gear 608. When the second motor 605 drives the slide plate 601 to move in the degradation tank 1, the third toothed plate 609 can drive the seventh gear 608 to rotate the stirring rod 607, thereby remixing the wastewater.

[0046] Reference Figures 1-9 As shown, in a preferred embodiment, an injection cylinder 610 is installed on the surface of the degradation tank 1. A second piston 611 is slidably installed inside the injection cylinder 610. A connecting shaft 612 is fixedly installed on the side wall of the second toothed plate 508. A connecting rod 613 connects the connecting shaft 612 and the second piston 611. Second one-way valves 614 are symmetrically installed on the side wall of the injection cylinder 610. One of the second one-way valves 614 is connected to an injection tube 615. Several second spray holes 616 are opened on the surface of the injection tube 615. An auxiliary agent tank 617 is installed on the surface of the degradation tank 1 for storing enzyme preparations. Another second one-way valve 614 is connected to the auxiliary agent tank 617. When the second toothed plate 508 moves up and down, it drives the second piston 611 to move synchronously, so that the two second one-way valves 614 are alternately opened, injecting the enzyme preparations into the injection tube 615 and spraying them into the sewage through the second spray holes 616, thereby improving the efficiency of microbial decomposition.

[0047] In a preferred embodiment, when the second toothed plate 508 moves up and down, it drives the second piston 611 to move synchronously, causing the two second one-way valves 614 to alternately open, injecting the enzyme preparation into the injection tube 615 and spraying it into the sewage through the second spray hole 616. The second motor 605 can drive the lead screw 604 to rotate, thereby driving the slide plate 601 to move in the inner cavity of the degradation tank 1. The third toothed plate 609 drives the seventh gear 608 to drive the stirring rod 607 to rotate, remixing the sewage and improving the efficiency of microbial decomposition.

[0048] Specifically, the working principle of this wastewater treatment device in urban green space planning is as follows: During use, wastewater is introduced into the treatment tank 2 through the inlet chamber 3. Solid impurities in the wastewater are filtered by the filter roller 401. The first motor 403 drives the filter roller 401 to rotate, scraping the solid impurities on its surface into the waste discharge trough 404 for collection. When the first gear 408 meshes with the annular toothed plate 409, it rotates 360 degrees, causing the waste discharge plate 406 to rotate one revolution, scraping away the solid impurities in the waste discharge trough 404. These impurities are then sent from the waste discharge bin 410 to the storage tray 411 for collection, facilitating use. Simultaneously, the wastewater... When the filter roller 401 rotates, it drives the drive disc 416 to rotate synchronously. This drives the first protrusion 414 through the second protrusion 417 to move the first piston 413 back and forth, injecting air into the hollow part of the first rotating shaft 402 through the through hole 418 and spraying it out into the inner cavity of the filter roller 401 through the first spray hole 419. On the one hand, this sprays out impurities in the filter holes to prevent clogging of the filter holes. On the other hand, it increases the dissolved oxygen concentration in the water, thereby providing sufficient oxygen for the growth of aerobic microorganisms, promoting the degradation and transformation of organic matter, and ensuring sufficient oxygen supply during the filtration process. This allows microorganisms to degrade pollutants more efficiently in the subsequent biological treatment stage.

[0049] When the first motor 403 drives the filter roller 401 to rotate, it drives the second gear 505 to rotate synchronously and drives the third gear 506 to rotate in the opposite direction. This drives the second toothed plate 508 to move up and down reciprocally through the two half gears 507, and drives the fourth gear 510 to drive the third rotating shaft 509 to rotate reciprocally. This causes the second rotating shaft 501 and the dispersion disc 502 to rotate, so that the sewage flowing from the treatment tank 2 to the surface of the dispersion disc 502 is evenly sprayed into the degradation tank 1. During the spraying process, the water droplets fly in the air and come into full contact with the air, supplementing additional dissolved oxygen, further enhancing oxygen supply, and improving metabolism and degradation capacity. At the same time, the sewage can be evenly sprayed to the entire biological tank area, avoiding the problem of microbial overload in some areas and lack of substrate in other areas. This enhances the contact and mixing effect between sewage and microorganisms, achieving preliminary mixing. As the sewage level rises, the float 504 can push the dispersion disc 502 to rise synchronously, thereby adjusting the dispersion range and facilitating use.

[0050] When the second toothed plate 508 moves up and down, it drives the second piston 611 to move synchronously, causing the two second one-way valves 614 to alternately open, injecting the enzyme preparation into the injection tube 615 and spraying it into the sewage through the second spray hole 616. The second motor 605 can drive the lead screw 604 to rotate, thereby driving the slide plate 601 to move in the inner cavity of the degradation tank 1. The third toothed plate 609 drives the seventh gear 608 to drive the stirring rod 607 to rotate, remixing the sewage and improving the efficiency of microbial decomposition.

[0051] A wastewater treatment method for urban green space planning, applicable to the aforementioned wastewater treatment device in urban green space planning, includes the following steps:

[0052] S1: Pretreatment; Wastewater is fed into treatment tank 2 through inlet tank 3. Solid impurities in the wastewater are filtered by filter roller 401. The first motor 403 drives the filter roller 401 to rotate, thereby scraping the solid impurities on the surface of the filter roller 401 into the waste discharge trough 404 for collection. When the first gear 408 meshes with the ring tooth plate 409, the first gear 408 is driven to rotate 360 ​​degrees, which drives the waste discharge plate 406 to rotate one revolution, scraping off the solid impurities in the waste discharge trough 404 and sending them to the storage tray 411 for collection from the waste discharge bin 410.

[0053] S2: Dispersion; The first motor 403 drives the filter roller 401 to rotate, which drives the second gear 505 to rotate synchronously and drives the third gear 506 to rotate in the opposite direction. Thus, the two half gears 507 drive the second tooth plate 508 to move up and down reciprocally, which drives the second rotating shaft 501 and the dispersing disk 502 to rotate, and sprays the sewage flowing from the treatment tank 2 to the surface of the dispersing disk 502 into the degradation tank 1.

[0054] S3: Catalysis; The second toothed plate 508 moves up and down reciprocally, driving the second piston 611 to move synchronously, causing the two second one-way valves 614 to alternately open, injecting the enzyme preparation into the injection tube 615, and spraying it into the sewage through the second spray hole 616. The second motor 605 can drive the lead screw 604 to rotate, thereby driving the slide plate 601 to move in the inner cavity of the degradation tank 1. The third toothed plate 609 drives the seventh gear 608 to drive the stirring rod 607 to rotate, and mix the sewage again.

[0055] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sewage treatment device for urban green space planning, characterized in that, The system includes a degradation tank (1), a treatment tank (2), and a pretreatment mechanism (4). The treatment tank (2) is installed on the upper surface of the degradation tank (1), and an inlet chamber (3) is installed on the upper surface of the treatment tank (2). The pretreatment mechanism (4) is installed inside the treatment tank (2) and is used to pretreat wastewater. The pretreatment mechanism (4) includes: A filter roller (401) is rotatably installed inside the treatment tank (2) for filtering solid impurities in wastewater; Waste discharge trough (404), which is formed on the surface of filter roller (401) for discharging solid impurities; A discharge rack (405) is rotatably installed in the inner cavity of a waste discharge trough (404). A waste discharge plate (406) is slidably installed in the discharge rack (405). The waste discharge plate (406) contacts the inner wall of the waste discharge trough (404) and is used to scrape off fixed impurities in the waste discharge trough (404). The inner cavity of the degradation tank (1) is equipped with a dispersing mechanism (5) for dispersing sewage into the degradation tank (1). The degradation tank (1) is equipped with a catalytic mechanism (6) in its inner cavity. The catalytic mechanism (6) includes a slide plate (601), a stirring shaft (606), and a stirring rod (607). The first motor (403) can drive the filter roller (401) to rotate, thereby scraping the solid impurities on the surface of the filter roller (401) into the waste discharge tank (404) for collection. The water inlet chamber (3) is abutted against the filter roller (401).

2. A sewage treatment device for urban green space planning according to claim 1, characterized in that, The filter roller (401) has a first rotating shaft (402) fixedly installed in its inner cavity. The processing tank (2) has a first motor (403) fixedly installed on its side wall. The output end of the first motor (403) is fixedly connected to the first rotating shaft (402). The discharge rack (405) has a first spring (407) fixedly installed in its inner cavity. The other end of the first spring (407) is fixedly connected to the waste discharge plate (406) to drive the waste discharge plate (406) to press tightly against the inner wall of the waste discharge trough (404).

3. A sewage treatment device for urban green space planning according to claim 2, characterized in that, The discharge rack (405) is fixedly installed with a first gear (408) on its side wall, and the inner wall of the treatment tank (2) is fixedly installed with an annular toothed plate (409). The annular toothed plate (409) meshes with the first gear (408). The side wall of the treatment tank (2) is equipped with a waste discharge bin (410), and a storage tray (411) is placed on the surface of the degradation tank (1) for collecting solid impurities.

4. A sewage treatment device for urban green space planning according to claim 3, characterized in that, The processing tank (2) has a gas collecting chamber (412) inside. A first piston (413) is slidably installed in the gas collecting chamber (412). A first protrusion (414) is fixedly installed on the side wall of the first piston (413). A second spring (415) is installed in the gas collecting chamber (412). One end of the second spring (415) is fixedly connected to the first piston (413), and the other end of the second spring (415) is fixedly connected to the processing tank (2). A drive disc (416) is fixedly installed on the surface of the first rotating shaft (402). A second protrusion (417) is fixedly installed on the surface of the drive disk (416) for driving the first protrusion (414) to move. The first rotating shaft (402) is hollow. A through hole (418) is opened on the side wall of the first rotating shaft (402), and the through hole (418) is connected to the air collection chamber (412). A plurality of first spray holes (419) are opened on the side wall of the first rotating shaft (402) for injecting air into the inner wall of the filter roller (401). A first one-way valve (420) is installed on the side wall of the air collection chamber (412) for air intake.

5. A sewage treatment device for urban green space planning according to claim 4, characterized in that, The dispersion mechanism (5) includes a second rotating shaft (501) and a dispersion disc (502). The second rotating shaft (501) is rotatably installed in the inner cavity of the degradation tank (1). The dispersion disc (502) is slidably sleeved on the surface of the second rotating shaft (501) for dispersing sewage. Spline teeth (503) are fixedly installed on the surface of the second rotating shaft (501). Spline grooves are opened on the surface of the dispersion disc (502). The spline teeth (503) mesh with the spline grooves. A float (504) is sleeved on the surface of the second rotating shaft (501) for driving the dispersion disc (502) to rise and fall.

6. A sewage treatment device for urban green space planning according to claim 5, characterized in that, A second gear (505) is fixedly mounted on the surface of the first rotating shaft (402), and a third gear (506) is rotatably mounted on the inner wall of the processing tank (2). The second gear (505) and the third gear (506) mesh with each other. Half gears (507) are fixedly mounted on the side walls of both the second gear (505) and the third gear (506). A second toothed plate (508) is slidably mounted on the inner cavity of the processing tank (2), and the second toothed plate (508) meshes with the half gears (507).

7. A sewage treatment device for urban green space planning according to claim 6, characterized in that, The degradation tank (1) is rotatably mounted with a third rotating shaft (509). A fourth gear (510) and a fifth gear (511) are fixedly mounted at both ends of the third rotating shaft (509). The fourth gear (510) meshes with the second tooth plate (508). A sixth gear (512) is fixedly mounted on the surface of the second rotating shaft (501). The sixth gear (512) meshes with the fifth gear (511).

8. A sewage treatment device for urban green space planning according to claim 7, characterized in that, The slide plate (601) is slidably installed in the inner cavity of the degradation tank (1). The inner cavity of the degradation tank (1) is symmetrically fixedly installed with slide rails (602). The slide rails (602) are slidably connected to the slide plate (601). The surface of the slide plate (601) is fixedly installed with threaded blocks (603). The inner cavity of the degradation tank (1) is rotatably installed with a lead screw (604). The lead screw (604) is threadedly connected to the threaded blocks (603). The side wall of the degradation tank (1) is fixedly installed with a second motor (605). The output end of the second motor (605) is fixedly connected to the lead screw (604). The stirring shaft (606) is symmetrically rotatably installed on both sides of the slide plate (601). The surface of the stirring shaft (606) is fixedly installed with a stirring rod (607). The surface of the stirring shaft (606) is fixedly installed with a seventh gear (608). The side wall of the slide rail (602) is fixedly installed with a third toothed plate (609). The third toothed plate (609) meshes with the seventh gear (608).

9. A sewage treatment device for urban green space planning according to claim 8, characterized in that, The degradation tank (1) is equipped with an injection cylinder (610). A second piston (611) is slidably installed in the inner cavity of the injection cylinder (610). A connecting shaft (612) is fixedly installed on the side wall of the second toothed plate (508). A connecting rod (613) is connected between the connecting shaft (612) and the second piston (611). A second one-way valve (614) is symmetrically installed on the side wall of the injection cylinder (610). One of the second one-way valves (614) is connected to an injection tube (615). A plurality of second spray holes (616) are opened on the surface of the injection tube (615). An auxiliary agent box (617) is installed on the surface of the degradation tank (1) for storing enzyme preparations. Another second one-way valve (614) is connected to the auxiliary agent box (617).

10. A wastewater treatment method in urban green space planning, applicable to the wastewater treatment device in urban green space planning described in claim 9, characterized in that, Includes the following steps: S1: Pretreatment; Wastewater is fed into treatment tank (2) through inlet chamber (3), and solid impurities in the wastewater are filtered by filter roller (401). The filter roller (401) is driven to rotate by first motor (403), thereby scraping the solid impurities on the surface of filter roller (401) into waste discharge trough (404) for collection. When first gear (408) meshes with ring tooth plate (409), first gear (408) is driven to rotate 360 ​​degrees, driving waste discharge plate (406) to rotate one revolution, scraping off solid impurities in waste discharge trough (404), and sending them from waste discharge chamber (410) to storage tray (411) for collection. S2: Dispersion; The first motor (403) drives the filter roller (401) to rotate, which drives the second gear (505) to rotate synchronously and drives the third gear (506) to rotate in the opposite direction. Thus, the two half gears (507) drive the second tooth plate (508) to move up and down repeatedly, which drives the second rotating shaft (501) and the dispersing disk (502) to rotate, and sprays the sewage flowing from the treatment tank (2) to the surface of the dispersing disk (502) into the degradation tank (1); S3: Catalysis; The second toothed plate (508) moves up and down, driving the second piston (611) to move synchronously, causing the two second one-way valves (614) to alternately open, injecting the enzyme preparation into the injection tube (615), and spraying it into the sewage through the second spray hole (616). The second motor (605) can drive the lead screw (604) to rotate, thereby driving the slide plate (601) to move in the inner cavity of the degradation tank (1). The third toothed plate (609) drives the seventh gear (608) to drive the stirring rod (607) to rotate, and mix the sewage again.

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