A new denitrification sewage treatment device

Abstract

The utility model relates to sewage treatment equipment technical field provides a new type nitrogen removal sewage treatment equipment, including sewage treatment equipment ontology, inlet pipe is connected to one end of sewage treatment equipment ontology, outlet pipe is connected to the outer end of sewage treatment equipment ontology, cleaning equipment ontology is installed in the inside of sewage treatment equipment ontology, the conveying pipe is connected between sewage treatment equipment ontology and inlet pipe, and one end is connected with sewage treatment equipment ontology through first connecting flange, and the other end is connected with inlet pipe through second connecting flange, filter piece is installed in the end of conveying pipe, and the other end is connected with inlet pipe, collection spare is connected in the middle part of conveying pipe. The utility model discloses the preposed sewage impurity filter system of pertinence design has effectively solved the core problem of membrane pollution acceleration, nitrogen removal reaction insufficiency caused by the lack of preposed filter piece in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment equipment technology, and in particular to a novel denitrification wastewater treatment equipment. Background Technology

[0002] In the current wastewater treatment field, the treatment process combining membrane bioreactors with sulfur autotrophic denitrification technology is widely used in the treatment of various nitrogen-containing wastewaters such as industrial wastewater and municipal sewage due to its advantages such as small footprint, high denitrification efficiency, and low residual sludge production.

[0003] However, existing technologies, such as Chinese Publication No. CN221093927U, describe a wastewater treatment device based on MBR + sulfur autotrophic denitrification technology, belonging to the field of wastewater treatment equipment. This wastewater treatment device includes a wastewater treatment equipment body, with an inlet pipe connected to the upper end of the body and an outlet pipe connected to the outer end. A sewage discharge component for discharging cleaned dirt from the MBR membrane is connected to the middle of the body. Inside the body, there is a cleaning mechanism for treating dirt accumulated on the MBR membrane over a long period. The cleaning mechanism includes a fixed plate fixedly connected to the outer end of the body, with a servo motor fixedly connected to the upper end of the plate. This device can achieve the function of cleaning the dirt accumulated on the MBR membrane through the cleaning mechanism connected inside the body.

[0004] However, during operation, it was found that the structural design of this device primarily focuses on the operational stability of the MBR membrane module and the efficiency optimization of the autotrophic denitrification reaction, generally lacking a dedicated pre-filter for wastewater impurities. After entering the equipment, wastewater flows directly through the MBR membrane module and the autotrophic denitrification reaction zone. The wastewater to be treated often contains a large number of impurities, including suspended solids, fibrous materials, and colloidal pollutants. These untreated impurities not only adhere directly to the surface of the MBR membrane module, accelerating membrane fouling, but also enter the autotrophic denitrification reaction zone, interfering with the stable operation of the reaction system, leading to incomplete denitrification and ultimately causing fluctuations in effluent quality, making it difficult to consistently meet discharge standards. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art that the lack of a pre-filter for wastewater impurities leads to an accelerated rate of membrane fouling and incomplete denitrification reaction.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a novel denitrification wastewater treatment device, comprising a wastewater treatment device body, the novel denitrification wastewater treatment device further comprising: an inlet pipe connected to one end of the wastewater treatment device body; an outlet pipe connected to the outer end of the wastewater treatment device body; a cleaning device body installed inside the wastewater treatment device body, capable of treating the dirt accumulated in the membrane bioreactor during long-term operation; a conveying pipe connected between the wastewater treatment device body and the inlet pipe, one end of which is connected to the wastewater treatment device body via a first connecting flange, and the other end of which is connected to the inlet pipe via a second connecting flange; a filter element installed at the end of the conveying pipe, the other end of which is connected to the inlet pipe, capable of filtering impurities in the fluid, reducing the formation rate of membrane fouling, and making the denitrification reaction more complete; and a collection element connected to the middle of the conveying pipe; wherein, the conveying pipe has an arc-shaped structure, and the collection element is located at the lowest concave part of the conveying pipe, facilitating impurities to fall into it under their own gravity.

[0007] The technical effects of adopting the above-mentioned further solution are as follows: the equipment connects the inlet and outlet pipes to the treatment body through an arc-shaped conveying pipe; the filter element can filter sewage impurities, reduce the fouling rate of the membrane bioreactor, and ensure sufficient denitrification reaction; the collection element is located in the recessed part of the conveying pipe, and collects impurities by gravity. Combined with the internal cleaning equipment, it maintains the stable operation of the system and improves the efficiency and quality of sewage treatment.

[0008] In a preferred embodiment, the filter element includes: a filter tube installed at one end of the conveying pipe near the inlet pipe; a waste-separating hopper disposed on one side of the filter tube, with its outer periphery riveted to the inner wall of the conveying pipe; a waste-separating trough movably connected to the other side of the waste-separating hopper; and multiple sets of perforations evenly distributed on the outer periphery of the waste-separating hopper and the waste-separating trough; wherein the end of the waste-separating trough is movably connected to the side of the waste-separating hopper by a thread, and the waste-separating trough is made of soft silicone material.

[0009] The technical effects of adopting the above-mentioned further solution are as follows: the filter tube is installed at the end of the conveying pipe near the inlet pipe, the waste hopper is riveted to the inner wall of the conveying pipe, and the soft silicone waste trough is threaded to the waste hopper. The holes of both can filter sewage impurities; the waste trough is detachable, which is convenient for cleaning, can reduce impurities entering the membrane bioreactor, reduce membrane fouling, and lay the foundation for full denitrification.

[0010] In a preferred embodiment, the filter element further includes: a filter partition, installed at one end of the conveying pipe near the main body of the wastewater treatment equipment; wherein the diameter of the filter holes on the filter partition is smaller than the diameter of the leakage holes.

[0011] The technical advantage of adopting the above-mentioned further solution is that the filter plate is installed at the end of the conveying pipe near the main body of the sewage treatment equipment, and its filter hole diameter is smaller than that of the leakage hole. It can perform secondary fine filtration of the sewage that has passed the initial filtration through the leakage hole, removing even smaller impurities.

[0012] In a preferred embodiment, the collection component includes: a waste collection pipe disposed at the bottom of the conveying pipe, with one end of the pipe penetrating the outer wall of the conveying pipe and extending inward; and a waste collection bottle installed at the bottom of the waste collection pipe via a threaded connection; wherein the opening diameter of the waste collection pipe is twice the diameter of the bottom of the waste separation tank.

[0013] The technical advantages of adopting the above-mentioned further solution are as follows: the waste collection pipe is located at the bottom of the conveying pipe and extends through its outer wall, with a waste collection bottle threaded into the bottom. The diameter of the waste collection pipe is twice that of the bottom of the waste separation tank. This allows for the collection of impurities by gravity and also allows for manual cleaning of the waste separation tank by reaching inside and unscrewing it, preventing impurity accumulation, ensuring smooth filtration, and helping to reduce membrane fouling.

[0014] In a preferred embodiment, the filter element further includes: a guide vane, rotatably mounted at the end of the inlet pipe and disposed at the front end of the waste hopper; and a connecting arm disposed on one side of the guide vane; wherein one end of the connecting arm is riveted to the middle of the guide vane, and its periphery is welded to the inner wall of the filter pipe, so that the guide vane can rotate around the central axis of the connecting arm under the impact of the water flow.

[0015] The technical effect of adopting the above-mentioned further solution is that the water flow impact can make the blades rotate around the central axis of the connecting arm, which can help to guide sewage and reduce the accumulation of impurities.

[0016] In a preferred embodiment, the filter element further includes a connecting rod, which is rotatably disposed in the middle of the connecting arm, and its end is riveted to the middle of the guide vane, and can rotate synchronously with the rotation of the guide vane.

[0017] The technical effect of adopting the above-mentioned further solution is that the connecting rod is rotatably located in the middle of the connecting arm, and the end is riveted to the middle of the guide vane, which can rotate synchronously with the vane, thereby transmitting the rotational power of the vane.

[0018] In a preferred embodiment, the filter element further includes: a mounting bracket, with multiple sets arranged along the length of the waste separation tank, one end of which is welded to the outer wall of the connecting rod; and a cleaning brush, riveted to one side of the mounting bracket; wherein the end of the cleaning brush abuts against the inner wall of the waste separation tank.

[0019] The technical advantage of adopting the above-mentioned further solution is that the cleaning brush is riveted to one side of the mounting bracket and its end abuts against the inner wall of the waste tank. As the connecting rod rotates, the cleaning brush can wipe the inner wall of the tank in real time, removing attached impurities, preventing clogging, and ensuring continuous smooth filtration.

[0020] In a preferred embodiment, the novel denitrification wastewater treatment equipment further includes: a clamp, which is disposed on the outside of the filter pipe and can be retracted to limit the displacement of the filter pipe and the conveying pipe; and two sealing gaskets, which are installed on the end faces of the first connecting flange and the second connecting flange.

[0021] The technical advantages of adopting the above-mentioned further solution are as follows: the clamp is located on the outside of the filter pipe, and its contraction can limit the displacement of the filter pipe and the conveying pipe, ensuring a stable connection between the two; two sealing gaskets are respectively installed on the end faces of the first and second connecting flanges to enhance the sealing performance of the flange connection. Together, these measures prevent component displacement and sewage leakage, ensuring the stable operation of the filtration system.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This invention employs a pre-filtration design of "dual filtration + real-time cleaning" to construct a comprehensive impurity interception system. First, after wastewater enters the inlet pipe, it undergoes initial filtration through the perforations on the outer periphery of the waste separation hopper and tank. These perforations intercept larger impurities such as silt particles and fibrous impurities, preventing them from entering subsequent processes. Subsequently, the pre-filtered wastewater flows through filter plates at the end of the delivery pipe. These plates have pores smaller than the perforations, further filtering out fine suspended impurities such as microbial flocs and colloidal particles, forming a dual protection of "coarse filtration + fine filtration." Simultaneously, the guide vanes, driven by the water flow, drive a cleaning brush to continuously wipe the inner wall of the waste separation tank, preventing impurities from accumulating and clogging the filter components, ensuring stable filtration efficiency. This pre-filtration system significantly reduces the impurity content in the wastewater entering the membrane bioreactor and slows down the formation rate of the fouling layer on the membrane surface. This effectively reduces the cost of membrane replacement and maintenance, while also providing continuous assurance for the low-pollution operation of the membrane bioreactor and the full denitrification reaction. This greatly improves the operational stability of the entire wastewater treatment system, extends the continuous operating time of the equipment, and reduces the loss of treatment efficiency due to downtime caused by malfunctions. Attached Figure Description

[0023] Figure 1 A three-dimensional structural diagram of a novel denitrification wastewater treatment device provided by this utility model; Figure 2 A partial structural schematic diagram of a novel denitrification wastewater treatment device provided by this utility model; Figure 3 An enlarged structural diagram of the filter element of a novel denitrification wastewater treatment device provided by this utility model; Figure 4 A schematic diagram of the internal structure of the filter element in a novel denitrification wastewater treatment device provided by this utility model; Figure 5 This is a partially enlarged structural diagram of the filter element of a novel denitrification wastewater treatment device provided by this utility model.

[0024] Legend: 1. Wastewater treatment equipment body; 2. Outlet pipe; 3. Cleaning equipment body; 4. Conveying pipe; 5. Inlet pipe; 6. First connecting flange; 7. Waste collection bottle; 8. Waste collection pipe; 9. Filter pipe; 10. Clamp; 11. Second connecting flange; 12. Guide vane; 13. Connecting arm; 14. Waste hopper; 15. Waste trough; 16. Leakage hole; 17. Connecting rod; 18. Mounting bracket; 19. Cleaning brush; 20. Sealing gasket; 21. Filter plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: Please see Figures 1-5 This embodiment provides a novel denitrification wastewater treatment device that can achieve wastewater pretreatment, and its specific concept is as follows: A novel denitrification wastewater treatment device includes a wastewater treatment device body 1, and the novel denitrification wastewater treatment device also includes: an outlet pipe 2, a cleaning device body 3, a conveying pipe 4, an inlet pipe 5, a first connecting flange 6, a second connecting flange 11, and a filter element.

[0027] At one end of the sewage treatment equipment body 1, there is an inlet pipe 5 for introducing sewage to be treated.

[0028] In addition, the outer end of the sewage treatment equipment body 1 is connected to an outlet pipe 2 to discharge the treated water.

[0029] The wastewater treatment equipment body 1 is equipped with a cleaning equipment body 3, which can treat the dirt accumulated in the membrane bioreactor that has been working for a long time.

[0030] It should be noted that an arc-shaped conveying pipe 4 is installed between the sewage treatment equipment body 1 and the inlet pipe 5.

[0031] One end of the conveying pipe 4 is securely connected to the sewage treatment equipment body 1 via the first connecting flange 6.

[0032] In addition, the other end of the delivery pipe 4 is connected to the water inlet pipe 5 via the second connecting flange 11.

[0033] It should be noted that a sealing gasket 20 is installed at the end face of the first connecting flange 6 and the second connecting flange 11 to enhance the sealing of the connection and prevent sewage leakage.

[0034] Meanwhile, a clamp 10 is fitted on the outside of the filter tube 9. The contraction of the clamp 10 can limit the displacement between the filter tube 9 and the conveying tube 4, ensuring the stability of the connection between the two.

[0035] As examples, in this embodiment, the filter element includes: a filter tube 9, a waste hopper 14, a waste trough 15, a perforation 16, a filter plate 21, a guide vane 12, a connecting arm 13, a connecting rod 17, a mounting bracket 18, and a cleaning brush 19.

[0036] The filter pipe 9 is installed at one end of the delivery pipe 4 near the inlet pipe 5.

[0037] Among them, the waste separation hopper 14 is located on one side of the filter tube 9.

[0038] It should be noted that the outer periphery of the waste hopper 14 is tightly connected to the inner wall of the conveying pipe 4 by riveting.

[0039] In addition, the waste separation tank 15 is movably connected to the other side of the waste separation hopper 14.

[0040] It should be noted that the waste separation tank 15 is made of soft silicone material, and the end of the waste separation tank 15 is connected to the side of the waste separation hopper 14 by threads, which facilitates subsequent disassembly and cleaning.

[0041] Multiple sets of perforations 16 are evenly and continuously arranged on the outer periphery of the waste hopper 14 and the waste trough 15 for preliminary filtration of impurities in the wastewater.

[0042] Among them, the filter plate 21 is installed at one end of the conveying pipe 4 near the sewage treatment equipment body 1.

[0043] It should be noted that the diameter of the filter pores of the filter plate 21 is smaller than the diameter of the leakage hole 16, which allows for secondary fine filtration of sewage.

[0044] In addition, the guide vane 12 is rotatably installed at the end of the water inlet pipe 5 and is located at the front end of the waste hopper 14.

[0045] The connecting arm 13 is located on one side of the guide vane 12.

[0046] It should be noted that one end of the connecting arm 13 is riveted to the middle of the guide vane 12, while the periphery is welded to the inner wall of the filter tube 9, so that the guide vane 12 can rotate around the central axis of the connecting arm 13 under the impact of the water flow.

[0047] In addition, the connecting rod 17 is rotatably disposed in the middle of the connecting arm 13, and its end is riveted to the middle of the guide vane 12, so that it can rotate synchronously with the rotation of the guide vane 12.

[0048] Multiple sets of mounting brackets 18 are provided along the length of the waste isolation tank 15.

[0049] In addition, one end of the mounting bracket 18 is welded to the outer wall of the connecting rod 17.

[0050] The cleaning brush 19 is riveted to one side of the mounting bracket 18.

[0051] It should be noted that the end of the cleaning brush 19 abuts against the inner wall of the waste separation tank 15.

[0052] In this embodiment, the rotation of the guide vane 12 under the impact of water flow drives the connecting rod 17, the mounting bracket 18, and the cleaning brush 19 to move synchronously. The cleaning brush 19 can clean the inner wall of the waste separation tank 15 in real time to prevent impurities from adhering and clogging. The waste separation hopper 14, the waste separation tank 15, and the leakage hole 16 work together to achieve preliminary filtration, and the filter plate 21 performs secondary fine filtration. The dual filtration can effectively remove impurities in the wastewater, reduce the membrane fouling rate of the membrane bioreactor, provide a cleaner wastewater environment for the subsequent denitrification reaction, make the denitrification reaction more complete, and improve the wastewater treatment effect. The sealing gasket 20 and the clamp 10 ensure the sealing and stability of the equipment connection and reduce the risk of wastewater leakage.

[0053] Example 2: Please see Figures 1-5 Based on Example 1, this example provides a novel denitrification wastewater treatment device that can collect impurities in wastewater. The specific concept is as follows: The new denitrification wastewater treatment equipment also includes: a collection component.

[0054] As examples, in this embodiment, the collection components include: waste collection pipe 8 and waste collection bottle 7.

[0055] The waste collection pipe 8 is located at the bottom of the conveying pipe 4.

[0056] It should be noted that one end of the waste collection pipe 8 penetrates the outer wall of the conveying pipe 4 and extends inward.

[0057] In addition, the waste collection bottle 7 is installed at the bottom of the waste collection pipe 8 by means of a threaded connection.

[0058] It should be noted that the diameter of the waste collection pipe 8 is twice the bottom diameter of the waste isolation tank 15. Workers can reach into the waste collection pipe 8 and unscrew the waste isolation tank 15 for cleaning.

[0059] In this embodiment, the filter element intercepts impurities in the wastewater within the waste separation tank 15 and the conveying pipe 4 through dual filtration and real-time cleaning. Since the conveying pipe 4 has an arc-shaped structure, and the collecting element is located at the lowest point of the concave section of the conveying pipe 4, impurities naturally fall into the waste collection pipe 8 under their own gravity and are eventually collected in the waste collection bottle 7, achieving centralized collection of impurities and preventing them from accumulating and clogging the conveying pipe 4. The threaded connection between the waste collection bottle 7 and the waste collection pipe 8, along with the large opening diameter of the waste collection pipe 8, facilitates regular disassembly of the waste collection bottle 7 to clean impurities. It also facilitates the disassembly and cleaning of the waste separation tank 15, reducing equipment maintenance difficulty. The overall structure works synergistically to achieve wastewater filtration, real-time impurity cleaning, and centralized collection, further ensuring smooth wastewater flow and improving the operational stability and treatment efficiency of the denitrification wastewater treatment equipment.

[0060] Working principle: This equipment is a new type of denitrification wastewater treatment equipment. During use, the wastewater to be treated enters through the inlet pipe 5. The water flow impacts the guide vanes 12 at the end of the inlet pipe 5, causing the guide vanes 12 to rotate around the central axis of the connecting arm 13. This simultaneously drives the connecting rod 17, the mounting frame 18, and the cleaning brush 19 to rotate. The cleaning brush 19 continuously abuts against the inner wall of the waste separation tank 15 for real-time cleaning. The wastewater continues to flow into the waste separation hopper 14 and the waste separation tank 15 in the filter pipe 9. Larger impurities in the wastewater are intercepted by the leakage holes 16 on the outer periphery of the waste separation hopper 14 and the waste separation tank 15. The wastewater after preliminary filtration enters the conveying pipe 4 and then undergoes secondary fine filtration through the filter plate 21 at one end of the conveying pipe 4 near the wastewater treatment equipment body 1 to remove small impurities. The wastewater after double filtration finally enters the interior of the wastewater treatment equipment body 1 for denitrification treatment. The treated water is discharged through the outlet pipe 2.

[0061] During equipment operation, the impurity collection components need to be maintained regularly: Since the conveying pipe 4 has an arc-shaped structure, the intercepted impurities will naturally fall into the waste collection pipe 8 at the lowest point of the conveying pipe 4 under their own gravity, and gather in the waste collection bottle 7. The staff needs to observe the accumulation of impurities in the waste collection bottle 7 regularly. When the impurities reach two-thirds of the capacity of the waste collection bottle 7, turn off the water inlet of the equipment, unscrew the waste collection bottle 7 to clean the impurities, and then reinstall it; if stubborn impurities are found on the inner wall of the waste separation tank 15, you can put your hand into the waste collection pipe 8 and unscrew the soft silicone waste separation tank 15 through the thread, clean it manually, and then reconnect it to the waste separation hopper 14.

[0062] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0063] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A novel denitrification wastewater treatment device, characterized in that, Including the wastewater treatment equipment body (1), this new denitrification wastewater treatment equipment also includes: The inlet pipe (5) is connected to one end of the sewage treatment equipment body (1); The outlet pipe (2) is connected to the outer end of the sewage treatment equipment body (1); Clean the equipment body (3) and install it inside the sewage treatment equipment body (1); The conveying pipe (4) is connected between the sewage treatment equipment body (1) and the inlet pipe (5), and one end of it is connected to the sewage treatment equipment body (1) through the first connecting flange (6), and the other end of it is connected to the inlet pipe (5) through the second connecting flange (11). The filter element is installed at the end of the delivery pipe (4), and its other end is connected to the inlet pipe (5); The collecting component is connected to the middle of the conveying pipe (4); The conveying pipe (4) has an arc-shaped structure, and the collecting component is located at the lowest point of the concave part of the conveying pipe (4), so that impurities can fall into it under their own gravity.

2. The novel denitrification wastewater treatment equipment according to claim 1, characterized in that, The filter element includes: A filter tube (9) is installed at one end of the delivery pipe (4) near the inlet pipe (5); Waste hopper (14) is set on one side of filter pipe (9), and its outer periphery is riveted to the inner wall of conveying pipe (4). Waste separation tank (15) is movably connected to the other side of waste separation hopper (14); Multiple sets of leakage holes (16) are provided through the waste hopper (14) and the waste trough (15), and are evenly distributed on the outer periphery of the waste hopper (14) and the waste trough (15); The end of the waste separation tank (15) is connected to the side of the waste separation hopper (14) by a threaded connection, and the waste separation tank (15) is made of soft silicone.

3. The novel denitrification wastewater treatment equipment according to claim 2, characterized in that, The filter element also includes: A filter plate (21) is installed on one end of the conveying pipe (4) near the body (1) of the sewage treatment equipment; The diameter of the filter holes on the filter septum (21) is smaller than the diameter of the leakage holes (16).

4. The novel denitrification wastewater treatment equipment according to claim 1, characterized in that, The collection components include: Waste collection pipe (8) is set at the bottom of conveying pipe (4), and one end of it penetrates the outer wall of conveying pipe (4) and extends inward; Waste collection bottle (7) is installed at the bottom of waste collection pipe (8) by threaded connection; The diameter of the waste collection pipe (8) is twice the bottom diameter of the waste isolation tank (15).

5. The novel denitrification wastewater treatment equipment according to claim 3, characterized in that, The filter element also includes: The guide vane (12) is rotatably installed at the end of the water inlet pipe (5) and is located at the front end of the waste hopper (14); A connecting arm (13) is provided on one side of the guide vane (12); One end of the connecting arm (13) is riveted to the middle of the guide vane (12), and its periphery is welded to the inner wall of the filter tube (9), so that the guide vane (12) can rotate around the central axis of the connecting arm (13) under the impact of the water flow.

6. The novel denitrification wastewater treatment equipment according to claim 5, characterized in that, The filter element also includes: The connecting rod (17) is rotatably disposed in the middle of the connecting arm (13), and its end is riveted to the middle of the guide vane (12), and can rotate synchronously with the rotation of the guide vane (12).

7. The novel denitrification wastewater treatment equipment according to claim 6, characterized in that, The filter element also includes: The mounting bracket (18) is provided in multiple sets along the length of the waste isolation groove (15), and one end of the bracket is welded to the outer wall of the connecting rod (17). A cleaning brush (19) is riveted to one side of the mounting bracket (18); The end of the cleaning brush (19) is abutted against the inner wall of the waste isolation tank (15).

8. The novel denitrification wastewater treatment equipment according to claim 7, characterized in that, This new denitrification wastewater treatment equipment also includes: A clamp (10) is provided on the outside of the filter tube (9) and can be retracted to limit the displacement of the filter tube (9) and the conveying tube (4); Two sealing gaskets (20) are provided and installed on the end faces of the first connecting flange (6) and the second connecting flange (11).

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