A modular wastewater treatment device with both anaerobic and aerobic treatment modes

Abstract

This invention discloses a modular wastewater treatment device with dual anaerobic and aerobic treatment modes, comprising two first conveying pipes and an anaerobic treatment chamber and an aerobic treatment chamber respectively connected to the two first conveying pipes. An aeration chamber is installed between the anaerobic and aerobic treatment chambers. The anaerobic treatment chamber is connected to the interior of the aeration chamber via a second conveying pipe. A collection component is installed on the aeration chamber. An air outlet component is installed inside the aerobic treatment chamber. An inlet pipe connected to the air outlet component is installed outside the aerobic treatment chamber and is connected to the collection component. A turning component is installed inside the anaerobic treatment chamber. A first push shaft is installed on the turning component and is connected to the collection component. A denitrification component and a phosphorus removal component are also connected between the anaerobic and aerobic treatment chambers. The turning component is connected to the aerobic treatment chamber via the phosphorus removal component, and the air outlet component is connected to the anaerobic treatment chamber via the denitrification component.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, and in particular to a modular wastewater treatment device with both anaerobic and aerobic treatment modes. Background Technology

[0002] Against the backdrop of increasingly severe global water scarcity and water pollution, wastewater treatment has become a key measure to ensure the recycling of water resources and protect the ecological environment. It is widely used in the treatment of various types of wastewater, such as urban domestic sewage, industrial wastewater, and agricultural and livestock wastewater, and is of great significance to maintaining water ecological balance, protecting human health, and promoting sustainable social development.

[0003] Anaerobic treatment decomposes organic pollutants in wastewater through the metabolism of anaerobic microorganisms in an anaerobic environment, reducing the organic load of the wastewater and generating renewable energy sources such as biogas. Aerobic treatment, on the other hand, further degrades residual pollutants in wastewater under aerobic conditions using aerobic microorganisms, improving wastewater purification efficiency. The coupled collaboration of these two methods enables the efficient removal of different types and concentrations of pollutants, adapting to the treatment needs of various wastewater qualities. Modular wastewater treatment devices with both anaerobic and aerobic treatment modes serve as specialized equipment for this coupled treatment approach. Their core function is to provide stable and flexible equipment support for the anaerobic-aerobic coupled wastewater treatment process through modular structural design, facilitating combination and flexible deployment according to the scale of wastewater treatment and water quality characteristics.

[0004] Chinese utility model patent CN215799066U discloses an iron-carbon micro-electrolysis coupled anaerobic-aerobic low-temperature wastewater treatment device. The technical solution of this patent includes an inlet tank, a reactor shell, a micro-electrolysis reaction chamber, and an anaerobic-aerobic reaction chamber. The reactor shell is made of double-layered plexiglass. The micro-electrolysis reaction chamber is located in the upper layer of the reactor. Wastewater flows into the anaerobic-aerobic reaction chamber through the holes in the bottom partition of the micro-electrolysis reaction chamber, which is located in the lower layer of the reactor. The reactor sidewall is provided with multiple sample inlets and water bath inlets and outlets. A sludge discharge port is provided on one side of the bottom. A microporous aeration disc is installed on the inner side of the bottom of the reactor. An electric stirring device is provided on the top. However, this patent introduces all the power sources from the outside during the wastewater treatment process, and the kinetic energy generated during the treatment process is wasted, thus causing energy damage.

[0005] Therefore, how to provide a modular wastewater treatment device with both anaerobic and aerobic treatment modes is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] One object of the present invention is to provide a modular wastewater treatment device with both anaerobic and aerobic treatment modes.

[0007] According to an embodiment of the present invention, a modular wastewater treatment device with dual anaerobic and aerobic treatment modes includes two first conveying pipes and an anaerobic treatment chamber and an aerobic treatment chamber respectively connected to the two first conveying pipes. An aeration chamber is installed between the anaerobic treatment chamber and the aerobic treatment chamber. The anaerobic treatment chamber is connected to the interior of the aeration chamber through a second conveying pipe. A collection component is installed on the aeration chamber. An air outlet component is installed inside the aerobic treatment chamber. An inlet pipe connected to the air outlet component is installed outside the aerobic treatment chamber and is connected to the collection component.

[0008] An agitation assembly is installed inside the anaerobic treatment chamber. A first push shaft is installed on the agitation assembly and connected to the collection assembly. A denitrification assembly and a phosphorus removal assembly are also connected between the anaerobic treatment chamber and the aerobic treatment chamber. The agitation assembly is connected to the aerobic treatment chamber through the phosphorus removal assembly, and the gas venting assembly is connected to the anaerobic treatment chamber through the denitrification assembly.

[0009] Furthermore, an isolation plate is fixedly installed inside the gas chamber, dividing the gas chamber into chamber body one and chamber body two. Chamber body one is located above chamber body two. A second conveying pipe is installed on the anaerobic treatment chamber, and the second conveying pipe is connected to chamber body two of the gas chamber. The collection component includes a rotating shaft, which is fixedly installed on the gas chamber and extends into chamber body one and chamber body two respectively.

[0010] Furthermore, a fixed box is fixedly installed on the gas chamber, and a sliding block is slidably installed on the fixed box. A second electric cylinder is fixedly installed on the side of the anaerobic treatment chamber, and the telescopic end of the second electric cylinder is fixedly connected to the sliding block.

[0011] Furthermore, a first push shaft is fixedly installed on the side of the sliding block facing the anaerobic treatment chamber. The first push shaft is slidably connected to the anaerobic treatment chamber, and a part of the first push shaft extends into the anaerobic treatment chamber. The turning component includes a scraper, which is fixedly installed on the part of the first push shaft located in the anaerobic treatment chamber. The scraper is slidably installed in the anaerobic treatment chamber, and multiple scraping grooves are provided on the lower side of the scraper. The cross-section of the scraping groove is a trapezoid with a narrow bottom and a wide top.

[0012] Furthermore, two motors are symmetrically fixedly installed on the anaerobic treatment chamber. A first connecting rod is fixedly installed at the output end of the motor. The motor controls the first connecting rod to reciprocate 90° in each rotation cycle. The first connecting rod is hollow inside, and a second connecting rod is slidably installed on the inner wall of the first connecting rod. A spring is installed on the inner wall of the first connecting rod. One end of the spring is fixedly installed on the inner wall of the first connecting rod, and the other end of the spring is fixedly installed on the end of the second connecting rod facing the first connecting rod. A third connecting rod is fixedly installed on the end of the second connecting rod away from the first connecting rod. The end of the third connecting rod away from the second connecting rod is rounded. The sides of the first connecting rod and the third connecting rod facing the scraper are both set with a sawtooth shape.

[0013] Furthermore, the phosphorus removal assembly includes a fourth conveying pipe, which is connected to and communicates with the aerobic treatment chamber. A second sleeve is connected to one end of the fourth conveying pipe facing the anaerobic treatment chamber. The second sleeve is fixedly installed on the anaerobic treatment chamber and part of it is located inside the anaerobic treatment chamber. A second intermediate pipe is fixedly installed on the outer surface of the second sleeve. The second sleeve communicates with the interior of the anaerobic treatment chamber through the second intermediate pipe. A piston is slidably installed on the inner wall of the second sleeve. A second push shaft is fixedly installed on the piston and is fixedly connected to the scraper.

[0014] Furthermore, a first sleeve is installed on the outer surface of the feed pipe facing the aeration chamber. A second piston is slidably installed on the inner wall of the first sleeve. A first piston shaft is fixedly installed on the second piston and is fixedly connected to a sliding block. A first intermediate pipe is fixedly installed on the outer surface of the first sleeve, and the first sleeve is connected to the outside air through the first intermediate pipe. The air outlet assembly includes an aeration cylinder, which is fixedly installed inside the aerobic treatment chamber. The feed pipe is connected to the inside of the aeration cylinder. Multiple jet nozzles are installed on the outer surface of the aeration cylinder, and the jet nozzles are located inside the aerobic treatment chamber.

[0015] Furthermore, the outer surface of the aeration cylinder is provided with two first air vents, which are coaxial. The denitrification component includes a fifth conveying pipe, which is fixedly installed on the inner wall of one of the first air vents. A portion of the fifth conveying pipe extends out of the aerobic treatment chamber, and the portion of the fifth conveying pipe extending out of the aerobic treatment chamber is connected to a sixth conveying pipe. A bacterial flow aerator is fixedly installed on the anaerobic treatment chamber. The input end of the bacterial flow aerator is connected to the sixth conveying pipe, and the output end of the bacterial flow aerator is connected to the interior of the anaerobic treatment chamber.

[0016] Furthermore, a first electric cylinder is fixedly installed on the aerobic treatment chamber. A drive plate is fixedly installed on the telescopic end of the first electric cylinder. A notched ring is fixedly installed on the drive plate. The notched ring is slidably installed on the inner wall of the aeration cylinder. The cross-section of the notched ring is a partially annular shape. The central angle corresponding to the cross-section of the notched ring is 200° to 250°. The connection between the feed pipe and the fifth delivery pipe is located below the notch of the notched ring. Two second vent holes are provided on the outer surface of the notched ring. The inner diameter of the second vent hole is equal to the inner diameter of the first vent hole. Multiple blocking blocks are fixedly installed on the lower side of the notched ring. The number of blocking blocks is equal to the number of jet heads.

[0017] Furthermore, when the shielding block completely blocks the jet head, the first vent and the second vent just begin to connect. When the bottom of the shielding block is in contact with the bottom of the inner wall of the aerobic treatment chamber, the first vent and the second vent are completely connected.

[0018] The beneficial effects of the present invention are: (1) The present invention achieves aeration in the aerobic treatment chamber by cooperating with the second electric cylinder and the air outlet component. At the same time, this part of the power provides a power source for the turning component. This part of the power turns the sludge in the anaerobic treatment chamber, thereby improving the sludge decomposition efficiency. The movement process of the turning component sends the polyphosphate-accumulating bacteria in the anaerobic treatment chamber into the aerobic treatment chamber. The polyphosphate-accumulating bacteria absorb phosphorus in excess under aerobic conditions, thereby achieving phosphorus removal from the wastewater in the aerobic treatment chamber; (2) The present invention achieves the switching between two working states of the notched ring: blowing the gas sent into the fifth conveying pipe into the wastewater in the aerobic treatment chamber and sending the nitrifying bacteria in the aerobic treatment chamber into the anaerobic treatment chamber. This achieves the switching between two working effects: aeration of the wastewater in the aerobic treatment chamber and treatment of nitrates in the wastewater in the anaerobic treatment chamber by nitrifying bacteria. This achieves the goal of not needing to add an additional carbon source, thus solving the problem of insufficient carbon source in the traditional denitrification process. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure proposed in this invention.

[0021] Figure 2 This is a schematic diagram showing the connection between the first conveying pipe and the anaerobic treatment chamber proposed in this invention.

[0022] Figure 3 A schematic diagram of the location of the air chamber proposed in this invention.

[0023] Figure 4 This is a schematic diagram showing the locations of the anaerobic treatment chamber and the aerobic treatment chamber proposed in this invention.

[0024] Figure 5 The present invention proposes Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0025] Figure 6 This is a schematic diagram of the air chamber structure proposed in this invention.

[0026] Figure 7 The present invention proposes Figure 6 A magnified schematic diagram of the structure at point B in the middle.

[0027] Figure 8 This is a schematic diagram of the internal structure of the anaerobic treatment chamber proposed in this invention.

[0028] Figure 9 The present invention proposes Figure 8 A magnified schematic diagram of the structure at point C.

[0029] Figure 10 The present invention proposes Figure 8 A magnified schematic diagram of the structure at point D in the middle.

[0030] Figure 11 This is a schematic diagram showing the connection relationship between the aerobic treatment chamber and the first electric cylinder proposed in this invention.

[0031] Figure 12 This is a schematic diagram of the internal structure of the aerobic treatment chamber proposed in this invention.

[0032] Figure 13 This is a schematic diagram showing the positional relationship between the aeration cylinder and the notched ring proposed in this invention.

[0033] Figure 14 The present invention proposes Figure 13 A magnified schematic diagram of the structure at point E in the middle.

[0034] Figure 15 This is a schematic diagram of the notched ring structure proposed in this invention.

[0035] Figure 16 This is a schematic diagram of the internal structure of the air chamber proposed in this invention.

[0036] In the diagram: 1. Support frame; 2. First conveying pipe; 3. Pallet; 401. Anaerobic treatment chamber; 402. Second conveying pipe; 403. Gas blowing chamber; 404. Sealing plate; 405. Third conveying pipe; 406. Storage tank; 407. Rotating shaft; 408. Positioning seat; 409. Second electric cylinder; 410. First driving block; 411. Isolation plate; 412. First piston shaft; 413. First sleeve; 414. First intermediate pipe; 415. Feeding pipe; 416. Inlet pipe; 417. Fixing box; 418. First limiting groove; 419. Sliding block; 420. Second driving block; 501. Support rod; 502. First push shaft; 503. Electric cylinder. 504. Connecting shaft; 505. Intermediate rod; 506. Scraper; 507. Mounting block; 508. First connecting rod; 509. Second connecting rod; 510. Third connecting rod; 511. Fourth conveying pipe; 512. Second sleeve; 513. Scraper groove; 514. Second push shaft; 515. Second intermediate pipe; 601. Aerobic treatment chamber; 602. First electric cylinder; 603. Fifth conveying pipe; 604. Sixth conveying pipe; 605. Bacterial flow oxygen barrier; 606. Aeration cylinder; 607. Cover plate; 608. Jet nozzle; 609. Drive plate; 610. First vent; 611. Second vent; 612. Notched ring; 613. Blocking block. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0038] refer to Figure 1 Reference Figure 5 and reference Figure 16 .

[0039] This embodiment includes two first conveying pipes 2 and an anaerobic treatment chamber 401 and an aerobic treatment chamber 601 connected to the two first conveying pipes 2. Both first conveying pipes 2 are fixedly installed between two support frames 1. The anaerobic treatment chamber 401 and the aerobic treatment chamber 601 are both fixedly installed on a pallet 3. An aeration chamber 403 is installed between the anaerobic treatment chamber 401 and the aerobic treatment chamber 601. The anaerobic treatment chamber 401 is connected to the interior of the aeration chamber 403 via a second conveying pipe 402. A storage tank 406 is also fixedly installed on the pallet 3. An isolation plate 4 is fixedly installed inside the aeration chamber 403. 11. The aeration chamber 403 is divided into chamber body one and chamber body two by the isolation plate 411. Chamber body one is located above chamber body two. A second conveying pipe 402 is installed on the anaerobic treatment chamber 401. The second conveying pipe 402 is connected to chamber body two of the aeration chamber 403. A sealing plate 404 is fixedly installed on the upper part of the aeration chamber 403. A sealing ring is installed at the connection between the sealing plate 404 and the aeration chamber 403. Sealing rings are installed at the connection between the second conveying pipe 402 and the aeration chamber 403 and the anaerobic treatment chamber 401, respectively. An oxygen barrier membrane is installed at the connection between the second conveying pipe 402 and the anaerobic treatment chamber 401.

[0040] refer to Figure 4 Reference Figure 9 .

[0041] In this embodiment, a collection assembly is installed on the aeration chamber 403, and an inlet pipe 415 is installed on the outside of the anaerobic treatment chamber 401. The inlet pipe 415 is connected to the collection assembly. The collection assembly includes a rotating shaft 407, which is fixedly installed on the aeration chamber 403. The rotating shaft 407 is rotatably fixedly connected to the sealing plate 404. The rotating shaft 407 extends into the chamber body one and the chamber body two respectively. A third conveying pipe 405 is installed on the outer surface of the aeration chamber 403. The third conveying pipe 405 extends into the chamber body two and is connected to the storage tank 406. Sealing rings are also installed at the connection points of the third conveying pipe 405 with the aeration chamber 403 and the storage tank 406 respectively.

[0042] refer to Figure 3 Reference Figure 10 .

[0043] In this embodiment, a fixed box 417 is fixedly installed on the gas chamber 403, a first limiting groove 418 is provided on the fixed box 417, and a sliding block 419 is slidably installed on the inner wall of the first limiting groove 418. A positioning seat 408 is fixedly installed on the side of the anaerobic treatment chamber 401, a second electric cylinder 409 is fixedly installed on the positioning seat 408, and a second driving block 420 is fixedly installed on the telescopic end of the second electric cylinder 409. The second driving block 420 is fixedly connected to the sliding block 419.

[0044] refer to Figure 3 ,refer to Figure 7 Reference Figure 11 .

[0045] In this embodiment, a first push shaft 502 is fixedly installed on the side of the sliding block 419 facing the anaerobic treatment chamber 401. The first push shaft 502 is slidably connected to the anaerobic treatment chamber 401, and a portion of the first push shaft 502 extends into the anaerobic treatment chamber 401. A support rod 501 is fixedly installed on the outer surface of the first push shaft 502, and a connecting shaft 504 is slidably installed on the support rod 501. The connecting shaft 504 is fixedly installed between the anaerobic treatment chamber 401 and the aerobic treatment chamber 601. An intermediate rod 505 is fixedly installed at one end of the first push shaft 502 located inside the anaerobic treatment chamber 401. 05 is slidably installed inside the anaerobic treatment chamber 401. The anaerobic treatment chamber 401 is equipped with a turning component, which includes a scraper 506. The scraper 506 is fixedly connected to the intermediate rod 505. The scraper 506 is slidably installed inside the anaerobic treatment chamber 401. Multiple scraping grooves 513 are provided on the lower side of the scraper 506. The cross-section of the scraping groove 513 is a trapezoid with a narrow bottom and a wide top. The anaerobic treatment chamber 401 and the aerobic treatment chamber 601 are connected by a return pipeline. The return pipeline is connected to the deaeration equipment. The output end of the deaeration equipment is connected to the anaerobic treatment chamber 401. A pressure relief valve is installed on the anaerobic treatment chamber 401.

[0046] refer to Figure 3 ,refer to Figure 7 Reference Figure 12 .

[0047] In this embodiment, two motors 503 are symmetrically fixedly installed on the anaerobic treatment chamber 401, and two mounting blocks 507 are symmetrically fixedly installed inside the anaerobic treatment chamber 401. Each mounting block 507 is rotatably connected to the output end of one of the motors 503. A first connecting rod 508 is fixedly installed at the output end of the motor 503. The motor 503 controls the first connecting rod 508 to reciprocate 90° in each rotation cycle. The first connecting rod 508 is hollow inside, and sliding surfaces are mounted on its inner wall. A second connecting rod 509 is installed. A spring is installed on the inner wall of the first connecting rod 508. One end of the spring is fixedly installed on the inner wall of the first connecting rod 508, and the other end of the spring is fixedly installed on the end of the second connecting rod 509 facing the first connecting rod 508. A third connecting rod 510 is fixedly installed on the end of the second connecting rod 509 away from the first connecting rod 508. The end of the third connecting rod 510 away from the second connecting rod 509 is rounded. The sides of the first connecting rod 508 and the third connecting rod 510 facing the scraper 506 are both set with a sawtooth shape.

[0048] refer to Figure 6 Reference Figure 10 .

[0049] In this embodiment, a phosphorus removal assembly is also connected between the anaerobic treatment chamber 401 and the aerobic treatment chamber 601. The turning assembly is connected to the aerobic treatment chamber 601 through the phosphorus removal assembly. The phosphorus removal assembly includes a fourth conveying pipe 511, which is connected to and communicates with the aerobic treatment chamber 601. An oxygen-barrier membrane is installed at the connection between the fourth conveying pipe 511 and the aerobic treatment chamber 601. A second sleeve 512 is connected to the end of the fourth conveying pipe 511 facing the anaerobic treatment chamber 401, and the end of the fourth conveying pipe 511 away from the aerobic treatment chamber 601 is sealed. A sealing ring is installed at the connection. The second sleeve 512 is fixedly installed on the anaerobic treatment chamber 401 and part of it is located inside the anaerobic treatment chamber 401. A second intermediate tube 515 is fixedly installed on the outer surface of the second sleeve 512 inside the anaerobic treatment chamber 401. The second sleeve 512 communicates with the inside of the anaerobic treatment chamber 401 through the second intermediate tube 515. A piston is slidably installed on the inner wall of the second sleeve 512. A second push shaft 514 is fixedly installed on the piston. The second push shaft 514 is fixedly connected to the scraper 506. A sealing ring is installed at the connection between the second sleeve 512 and the anaerobic treatment chamber 401.

[0050] refer to Figure 9 Reference Figure 13 .

[0051] In this embodiment, an air outlet assembly is installed inside the aerobic treatment chamber 601. The air outlet assembly is connected to the inlet pipe 415. A first sleeve 413 is installed on the outer surface of the inlet pipe 415 facing the aeration chamber 403. A sealing ring is installed at the connection between the inlet pipe 415 and the first sleeve 413. A piston 2 is slidably installed on the inner wall of the first sleeve 413. A first piston shaft 412 is fixedly installed on the piston 2. A first driving block 410 is fixedly installed on the first piston shaft 412. The first driving block 410 is fixedly connected to the sliding block 419. A first intermediate pipe 414 is fixedly installed on the outer surface of the first sleeve 413. The first sleeve 413 communicates with the outside air through the first intermediate pipe 414. A sealing ring is installed at the connection between the 4 and the first sleeve 413; the air outlet assembly includes an aeration cylinder 606, which is fixedly installed inside the aerobic treatment chamber 601. An inlet pipe 416 is installed on the inlet pipe 415, and a sealing ring is installed at the connection between the inlet pipe 415 and the inlet pipe 416. The inlet pipe 416 communicates with the interior of the aeration cylinder 606. Multiple jet nozzles 608 are installed on the outer surface of the aeration cylinder 606. The jet nozzles 608 are located inside the aerobic treatment chamber 601. A waterproof sealing ring is installed at the connection between each jet nozzle 608 and the aeration cylinder 606. A cover plate 607 is fixedly installed on the upper part of the aeration cylinder 606, and the cover plate 607 is fastened to the aeration cylinder 606 by welding.

[0052] refer to Figure 10 Reference Figure 13 .

[0053] In this embodiment, a denitrification assembly is connected between the anaerobic treatment chamber 401 and the aerobic treatment chamber 601. A pressure pump is installed on the side of the aerobic treatment chamber 601. The gas outlet assembly is connected to the anaerobic treatment chamber 401 through the denitrification assembly. Two first vent holes 610 are provided on the outer surface of the aeration cylinder 606. The two first vent holes 610 are coaxial. The denitrification assembly includes a fifth conveying pipe 603, which is fixedly installed on the inner wall of one of the first vent holes 610. Waterproof sealing rings are installed at the connection points between the fifth conveying pipe 603 and the first vent hole 610 and the aerobic treatment chamber 601. A solenoid valve is installed on the inner wall of the 0. A portion of the fifth delivery pipe 603 extends out of the aerobic treatment chamber 601. The portion of the fifth delivery pipe 603 extending out of the aerobic treatment chamber 601 is connected to the sixth delivery pipe 604. A bacterial flow oxygen barrier 605 is fixedly installed on the anaerobic treatment chamber 401. The input end of the bacterial flow oxygen barrier 605 is connected to the sixth delivery pipe 604, and the output end of the bacterial flow oxygen barrier 605 is connected to the interior of the anaerobic treatment chamber 401. A sealing ring is installed at the connection between the output end of the bacterial flow oxygen barrier 605 and the anaerobic treatment chamber 401. The bacterial flow oxygen barrier 605 is preferably a porous ceramic bacterial flow oxygen barrier.

[0054] refer to Figure 11 Reference Figure 16 .

[0055] In this embodiment, a first electric cylinder 602 is fixedly installed on the aerobic treatment chamber 601. The telescopic end of the first electric cylinder 602 is slidably connected to the cover plate 607. A waterproof sealing ring is installed at the connection between the telescopic end of the first electric cylinder 602 and the cover plate 607. A driving plate 609 is fixedly installed on the telescopic end of the first electric cylinder 602. A notched ring 612 is fixedly installed on the driving plate 609. The notched ring 612 is slidably installed on the inner wall of the aeration cylinder 606. The cross-section of the notched ring 612 is a partially annular shape. The notched ring 612 is horizontally... The cross-section corresponds to a central angle of 200° to 250°. The connection between the feed pipe 415 and the fifth delivery pipe 603 is located below the notch of the notch ring 612. Two second vent holes 611 are provided on the outer surface of the notch ring 612. The inner diameter of the second vent hole 611 is equal to the inner diameter of the first vent hole 610. Multiple blocking blocks 613 are fixedly installed on the lower side of the notch ring 612. The number of blocking blocks 613 is equal to the number of jet heads 608. The width of the blocking block 613 is greater than the size of the jet head 608.

[0056] refer to Figure 13 Reference Figure 15 .

[0057] In this embodiment, when the blocking block 613 completely blocks the jet head 608, the first vent 610 and the second vent 611 just begin to connect. When the bottom of the blocking block 613 is in contact with the bottom of the inner wall of the aerobic treatment chamber 601, the first vent 610 and the second vent 611 are fully connected.

[0058] Working principle:

[0059] (a) Before operation, the corresponding wastewater treatment agents are placed into the anaerobic treatment chamber 401 and the aerobic treatment chamber 601 respectively. Then, according to the amount of wastewater to be treated, polyphosphate-accumulating bacteria are added to the anaerobic treatment chamber 401 and nitrifying bacteria are added to the aerobic treatment chamber 601. Then, the wastewater to be treated is sent into the anaerobic treatment chamber 401 and the aerobic treatment chamber 601 respectively through the first conveying pipe 2. When the wastewater in the aerobic treatment chamber 601 reaches 3 / 5 of its volume, the feeding of wastewater into the aerobic treatment chamber 601 is stopped. At this time, the wastewater level is lower than the first vent hole 610. When the wastewater in the anaerobic treatment chamber 401 reaches 3 / 5 of its volume, the feeding of wastewater into the anaerobic treatment chamber 401 is stopped. At this time, the wastewater level is lower than the second sleeve 512. Then, the gas inside the anaerobic treatment chamber 401 is removed by a vacuum machine, so as to make the anaerobic treatment chamber 401 reach an anoxic state.

[0060] (ii) As the reaction in the anaerobic treatment chamber 401 proceeds, biogas is gradually produced. Before biogas is produced, polyphosphate-accumulating bacteria in the anaerobic treatment chamber 401 release phosphorus stored in their bodies under anaerobic conditions and absorb easily degradable organic matter in the water. After biogas is produced, the biogas enters the storage tank 406 through the third conveying pipe 405, thereby completing the collection of biogas. The second electric cylinder 409 drives the sliding block 419 to slide back and forth along the first limiting groove 418, thereby driving the first push shaft 502 to move back and forth along the anaerobic treatment chamber 401. The first push shaft 502 drives the scraper 506 to slide back and forth along the inner wall of the anaerobic treatment chamber 401, and then scrapes the sludge in the anaerobic treatment chamber 401 through the scraper groove 513, thereby increasing the contact area between the sludge and the agent and polyphosphate-accumulating bacteria.

[0061] (iii) At the same time, the motor 503 starts and controls the first connecting rod 508 to rotate 90° in each cycle. This causes the sludge in the anaerobic treatment chamber 401 to be turned over by the serrated edges of the first connecting rod 508 and the third connecting rod 510. This is coordinated with the scraper 513 to move the sludge in the anaerobic treatment chamber 401, thereby increasing the contact area between the sludge and the reagents and polyphosphate-accumulating bacteria, and improving the fermentation and treatment efficiency.

[0062] (iv) When the scraper 506 reciprocates, a portion of polyphosphate-accumulating bacteria in the anaerobic treatment chamber 401 is sent into the aerobic treatment chamber 601 through the second sleeve 512 via the second push shaft 514. After entering the aerobic treatment chamber 601, the polyphosphate-accumulating bacteria absorb excess phosphorus from the wastewater in the aerobic treatment chamber 601 under aerobic conditions.

[0063] (v) When the sliding block 419 slides back and forth along the first limiting groove 418, air is sent into the aeration cylinder 606 through the inlet pipe 416 via the first piston shaft 412. Then the gas is blown into the sewage through the jet head 608, thereby completing the aeration operation of the sewage, thereby increasing the oxygen content in the sewage in the aerobic treatment chamber 601 and improving the sewage treatment efficiency in the aerobic treatment chamber 601. In the aerobic treatment chamber 601, nitrifying bacteria convert ammonia nitrogen in the sewage into nitrate. After a period of time, the pressure pump starts and sends a part of the mixed liquid in the aerobic treatment chamber 601 into the deoxygenation equipment through the return pipeline. After passing through the deoxygenation equipment, the oxygen in the nitrate-containing mixed liquid is removed, and the oxygen-removed nitrate-containing mixed liquid enters the anaerobic treatment chamber 401.

[0064] (vi) After aeration for a period of time, the first electric cylinder 602 is started. The first electric cylinder 602 pushes the notched ring 612 to slide along the inner wall of the aeration cylinder 606. When the blocking block 613 completely blocks the jet nozzle 608, the first vent 610 and the second vent 611 just begin to connect. At this time, the solenoid valve in the first vent 610 opens. At this time, the jet nozzle 608 stops sending air into the sewage. When the bottom of the blocking block 613 is in contact with the bottom of the inner wall of the aerobic treatment chamber 601, the first vent 610 and the second vent 611 are completely connected. At this time, the gas blown in and a portion of the nitrifying bacteria in the aerobic treatment chamber 601 are sent into the anaerobic treatment chamber 401 through the bacterial flow oxygen separator 605.

[0065] (vii) The gas introduced and a portion of the nitrifying bacteria in the aerobic treatment chamber 601 enter the bacterial flow oxygen separator 605 through the sixth delivery pipe 604. The oxygen in the bacterial flow oxygen separator 605 is then removed. The nitrifying bacteria use the organic matter in the wastewater of the aerobic treatment chamber 601 as a carbon source to reduce nitrates to nitrogen. When the gas pressure in the aerobic treatment chamber 601 is too high, the gas is discharged through the pressure relief valve. This linkage does not require the addition of an extra carbon source, thus solving the problem of insufficient carbon source in traditional denitrification processes.

[0066] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A modular wastewater treatment device with dual anaerobic and aerobic treatment modes, comprising two first conveying pipes (2), characterized in that, It also includes an anaerobic treatment chamber (401) and an aerobic treatment chamber (601) connected to two first conveying pipes (2) respectively. An aeration chamber (403) is installed between the anaerobic treatment chamber (401) and the aerobic treatment chamber (601). The anaerobic treatment chamber (401) is connected to the interior of the aeration chamber (403) through a second conveying pipe (402). A collection component is installed on the aeration chamber (403). An exhaust component is installed inside the aerobic treatment chamber (601). An inlet pipe (415) connected to the exhaust component is installed outside the aerobic treatment chamber (601). The inlet pipe (415) is connected to the collection component. An agitation assembly is installed inside the anaerobic treatment chamber (401). A first push shaft (502) is installed on the agitation assembly. The first push shaft (502) is connected to the collection assembly. A denitrification assembly and a phosphorus removal assembly are also connected between the anaerobic treatment chamber (401) and the aerobic treatment chamber (601). The agitation assembly is connected to the aerobic treatment chamber (601) through the phosphorus removal assembly. The gas venting assembly is connected to the anaerobic treatment chamber (401) through the denitrification assembly. An isolation plate (411) is fixedly installed inside the aeration chamber (403). The aeration chamber (403) is divided into chamber body one and chamber body two by the isolation plate (411). Chamber body one is located above chamber body two. A second conveying pipe (402) is installed on the anaerobic treatment chamber (401). The second conveying pipe (402) is connected to chamber body two of the aeration chamber (403). The collection component includes a rotating shaft (407). The rotating shaft (407) is fixedly installed on the aeration chamber (403). The rotating shaft (407) extends into chamber body one and chamber body two respectively. A fixed box (417) is fixedly installed on the air chamber (403), and a sliding block (419) is slidably installed on the fixed box (417). A second electric cylinder (409) is fixedly installed on the side of the anaerobic treatment chamber (401), and the telescopic end of the second electric cylinder (409) is fixedly connected to the sliding block (419). A first sleeve (413) is installed on the outer surface of the feed pipe (415) facing the aeration chamber (403). A piston 2 is slidably installed on the inner wall of the first sleeve (413). A first piston shaft (412) is fixedly installed on the piston 2. The first piston shaft (412) is fixedly connected to the sliding block (419). A first intermediate pipe (414) is fixedly installed on the outer surface of the first sleeve (413). The first sleeve (413) is connected to the outside air through the first intermediate pipe (414). The air outlet assembly includes an aeration cylinder (606). The aeration cylinder (606) is fixedly installed inside the aerobic treatment chamber (601). The feed pipe (415) is connected to the inside of the aeration cylinder (606). Multiple jet nozzles (608) are installed on the outer surface of the aeration cylinder (606). The jet nozzles (608) are located inside the aerobic treatment chamber (601). The aeration cylinder (606) has two first air vents (610) on its outer surface. The two first air vents (610) are coaxial. The denitrification assembly includes a fifth conveying pipe (603). The fifth conveying pipe (603) is fixedly installed on the inner wall of one of the first air vents (610). A portion of the fifth conveying pipe (603) extends out of the aerobic treatment chamber (601). The portion of the fifth conveying pipe (603) extending out of the aerobic treatment chamber (601) is connected to a sixth conveying pipe (604). A bacterial flow oxygen barrier (605) is fixedly installed on the anaerobic treatment chamber (401). The input end of the bacterial flow oxygen barrier (605) is connected to the sixth conveying pipe (604), and the output end of the bacterial flow oxygen barrier (605) is connected to the interior of the anaerobic treatment chamber (401). A first electric cylinder (602) is fixedly installed on the aerobic treatment chamber (601). A drive plate (609) is fixedly installed on the telescopic end of the first electric cylinder (602). A notched ring (612) is fixedly installed on the drive plate (609). The notched ring (612) is slidably installed on the inner wall of the aeration cylinder (606). The cross-section of the notched ring (612) is a broken ring. The central angle corresponding to the cross-section of the notched ring (612) is 200° to 250°. The connection between the feed pipe (415) and the fifth conveying pipe (603) is located below the notch of the notched ring (612). Two second vent holes (611) are provided on the outer surface of the notched ring (612). The inner diameter of the second vent hole (611) is equal to the inner diameter of the first vent hole (610). Multiple blocking blocks (613) are fixedly installed on the lower side of the notched ring (612). The number of blocking blocks (613) is equal to the number of jet heads (608).

2. The modular wastewater treatment device with dual anaerobic and aerobic treatment modes according to claim 1, characterized in that, A first push shaft (502) is fixedly installed on the side of the sliding block (419) facing the anaerobic treatment chamber (401). The first push shaft (502) is slidably connected to the anaerobic treatment chamber (401). A part of the first push shaft (502) extends into the anaerobic treatment chamber (401). The turning component includes a scraper (506). The scraper (506) is fixedly installed on the part of the first push shaft (502) located in the anaerobic treatment chamber (401). The scraper (506) is slidably installed in the anaerobic treatment chamber (401). Multiple scraping grooves (513) are provided on the lower side of the scraper (506). The cross-section of the scraping groove (513) is a trapezoid with a narrow bottom and a wide top.

3. A modular wastewater treatment device with both anaerobic and aerobic treatment modes according to claim 2, characterized in that, Two motors (503) are symmetrically fixedly installed on the anaerobic treatment chamber (401). A first connecting rod (508) is fixedly installed at the output end of the motor (503). The motor (503) controls the first connecting rod (508) to rotate 90° back and forth in each cycle. The first connecting rod (508) is hollow inside. A second connecting rod (509) is slidably installed on the inner wall of the first connecting rod (508). A spring is installed on the inner wall of the first connecting rod (508). One end of the spring is fixed. The spring is fixedly installed on the inner wall of the first link (508), and the other end of the spring is fixedly installed on the end of the second link (509) facing the first link (508). The third link (510) is fixedly installed on the end of the second link (509) away from the first link (508). The end of the third link (510) away from the second link (509) is rounded. The sides of the first link (508) and the third link (510) facing the scraper (506) are both set as serrated.

4. A modular wastewater treatment device with dual anaerobic and aerobic treatment modes according to claim 2, characterized in that, The phosphorus removal assembly includes a fourth conveying pipe (511), which is connected to and communicates with the aerobic treatment chamber (601). The end of the fourth conveying pipe (511) facing the anaerobic treatment chamber (401) is connected to a second sleeve (512). The second sleeve (512) is fixedly installed on the anaerobic treatment chamber (401) and part of it is located inside the anaerobic treatment chamber (401). A second intermediate pipe (515) is fixedly installed on the outer surface of the second sleeve (512). The second sleeve (512) communicates with the interior of the anaerobic treatment chamber (401) through the second intermediate pipe (515). A piston is slidably installed on the inner wall of the second sleeve (512). A second push shaft (514) is fixedly installed on the piston. The second push shaft (514) is fixedly connected to the scraper (506).

5. A modular wastewater treatment device with dual anaerobic and aerobic treatment modes according to claim 1, characterized in that, When the shielding block (613) completely blocks the jet head (608), the first vent (610) and the second vent (611) just begin to connect. When the bottom of the shielding block (613) is in contact with the bottom of the inner wall of the aerobic treatment chamber (601), the first vent (610) and the second vent (611) are completely connected.

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