An efficient anaerobic ammonia oxidation denitrification process device

Abstract

This invention relates to the field of wastewater treatment technology and provides an efficient anaerobic ammonia oxidation denitrification process device, comprising a reactor body, a water distributor installed inside the reactor body, an exposure tube connected through the reactor body, an outlet pipe installed on one side of the reactor body, a three-phase separator fixedly connected inside the reactor body, a sedimentation tank installed below the three-phase separator, a buffer device installed inside the sedimentation tank, and a sludge removal device installed inside the reactor body. In this invention, during operation, when wastewater flows into the sedimentation tank from top to bottom, it first impacts the upper inclined plate, weakening the water flow energy and guiding it along the inclined plate to the lower inclined plate. Multiple inclined plates sequentially change the water flow direction and reduce the flow velocity, thereby effectively buffering the rapid inflow and preventing the water flow from directly impacting the sludge at the bottom of the sedimentation tank, avoiding the problem of sediment being disturbed and floating, thus effectively improving the separation efficiency of the sedimentation tank and the quality of the effluent.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, and in particular relates to an anaerobic ammonia oxidation high-efficiency denitrification process device. Background Technology

[0002] Anammox reactors are biological denitrification devices that utilize special microorganisms to directly convert ammonia nitrogen and nitrite into nitrogen gas under anaerobic conditions. This technology requires no organic carbon source, has low energy consumption and produces little sludge, making it particularly suitable for treating high-ammonia nitrogen wastewater, such as sludge digestion liquid or industrial wastewater. Anammox bacteria are sensitive to the environment and require strict control of dissolved oxygen and temperature. The start-up phase is relatively long, but once the operation is stable, the efficiency is high, making it one of the innovative processes for sustainable wastewater treatment.

[0003] With the continuous development of water treatment technology, the application of anaerobic ammonia oxidation process in denitrification treatment has gradually become more widespread. However, in the existing anaerobic ammonia oxidation reactor structure, the flow rate of sewage entering the sedimentation zone is relatively fast, which can easily disturb the sludge at the bottom of the sedimentator, resulting in sludge entrainment, increased suspended solids concentration, and affecting the effluent quality and sedimentation efficiency. In addition, traditional water distributors are mostly used for uniform water distribution and lack the function of linkage with sludge discharge. When there is a lot of sludge accumulation in the sedimentator, poor sludge discharge can lead to sludge layer accumulation, blockage, or frequent manual maintenance. Utility Model Content

[0004] This invention provides an efficient anaerobic ammonia oxidation denitrification process device, which aims to solve the following problems.

[0005] This utility model is implemented as follows: an anaerobic ammonia oxidation high-efficiency denitrification process device includes: a reactor body, a water distributor installed in the reactor body, an exposure tube connected through the reactor body, an outlet pipe installed on one side of the reactor body, a three-phase separator fixedly connected in the reactor body, and a precipitator installed below the three-phase separator.

[0006] A buffer device is installed inside the settler, and a sludge discharge device is installed inside the reactor body. The buffer device includes two connecting rings, and inclined plates are installed on the connecting rings.

[0007] Preferably, the connecting ring is fixedly connected to the precipitator, and a fastening bolt is fixedly connected between the connecting ring and the precipitator.

[0008] Preferably, the connecting ring is inclined, and the inclined plate has the same inclination angle as the connecting ring.

[0009] Preferably, the two inclined plates are arranged to be relatively inclined and are arranged in a stepped shape.

[0010] Preferably, the sludge removal device includes an extension pipe, which is installed inside the water distributor, and a nozzle is fixedly connected to one end of the extension pipe.

[0011] Preferably, the sludge discharge device further includes a receiving box, which is installed on the inner wall of the reactor body. A discharge pipe is connected through one side of the receiving box, and a valve is fixedly connected to one side of the discharge pipe.

[0012] Preferably, the nozzle is located at the outlet of the sedimentation tank, and the nozzle and the receiving box are at the same horizontal level.

[0013] Compared with related technologies, the anaerobic ammonia oxidation high-efficiency denitrification process device provided by this utility model has the following beneficial effects:

[0014] 1. In this utility model, by setting two connecting rings inside the sedimentation tank and installing inclined plate structures on the connecting rings, a multi-stage stepped buffer and guiding structure is formed. The inclined plates and connecting rings are fixed with fastening bolts, making the structure stable and reliable. During operation, when sewage flows into the sedimentation tank from top to bottom, it first impacts the upper inclined plate, weakening the kinetic energy of the water flow and guiding it to the lower inclined plate. The multi-stage inclined plates successively change the direction of water flow and reduce the flow velocity, thereby achieving effective buffering of the rapid inflow, preventing the water flow from directly impacting the sludge at the bottom of the sedimentation tank, avoiding the problem of sediment being disturbed and floating, and thus effectively improving the separation efficiency of the sedimentation tank and the quality of the effluent.

[0015] 2. In this utility model, an extension pipe is installed on the basis of the original water distributor, and a nozzle is connected to its end. The nozzle is located on one side of the sludge discharge area at the bottom of the sedimentation tank. During operation, while the water distributor supplies water normally, some water is sprayed out through the nozzle to form a directional water flow. In the relatively static environment of the water inside the reactor body, this directional water flow can form a fluid induction effect in the spray area, which carries the deposited sludge to the receiving box on one side. The receiving box is set on the inner wall of the reactor and is connected to the outside through the discharge pipe. It is equipped with a valve for control. When cleaning is required, the operator only needs to open the valve to smoothly discharge the sludge, which greatly simplifies the daily maintenance operation, avoids sludge accumulation and blockage, and achieves the dual functions of auxiliary sludge discharge and uniform water distribution without adding additional stirring or power equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the three-dimensional cross-section of the reactor body of this utility model;

[0018] Figure 3 This is a three-dimensional cross-sectional structural diagram of the sedimentation device of this utility model;

[0019] Figure 4 This utility model Figure 2 An enlarged structural diagram of part A in the middle.

[0020] Reference numerals in the attached drawings: 1. Reactor body; 2. Water distributor; 3. Exposure tube; 4. Water outlet tube; 5. Three-phase separator; 6. Sedimenter; 7. Buffer device; 701. Connecting ring; 702. Inclined plate; 703. Fastening bolt; 8. Sludge discharge device; 801. Extension tube; 802. Nozzle; 803. Receiver box; 804. Discharge tube; 805. Valve. Detailed Implementation

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] This utility model provides an efficient anaerobic ammonia oxidation denitrification process device, such as... Figure 1-4 As shown, it includes: a reactor body 1, a water distributor 2 installed inside the reactor body 1, an exposure tube 3 that runs through the reactor body 1, an outlet pipe 4 installed on one side of the reactor body 1, a three-phase separator 5 fixedly connected inside the reactor body 1, and a sedimentation tank 6 installed below the three-phase separator 5.

[0024] The buffer device 7 is installed in the settling tank 6, and the sludge discharge device 8 is installed in the reactor body 1. The buffer device 7 includes two connecting rings 701, and inclined plates 702 are installed on the connecting rings 701.

[0025] In a further preferred embodiment of the present invention, the connecting ring 701 is fixedly connected to the precipitator 6, and a fastening bolt 703 is fixedly connected between the connecting ring 701 and the precipitator 6. The connecting ring 701 is inclined, and the inclined plate 702 has the same inclination angle as the connecting ring 701. The two inclined plates 702 are inclined relative to each other and are stepped.

[0026] In this embodiment, the inclined plate 702 and the connecting ring 701 are inclined at the same angle to ensure that the inclined plate 702 can be precisely fitted with the connecting surface during installation, avoiding gaps or loosening caused by misalignment of angles. This improves the overall stability of the buffer structure and the consistency of water flow guidance, allowing the water flow to smoothly transition along the surface of the inclined plate 702, reducing impact force and improving the hydraulic buffering effect. The two inclined plates 702 are arranged in a stepped, relatively inclined manner, which can form a layered flow channel in the vertical direction. The upper inclined plate 702 guides the water flow to the lower inclined plate 702, and then the lower inclined plate 702 continues to guide it, forming a multi-level buffer diversion, which significantly reduces the impact kinetic energy of the water flow, effectively prevents sewage from directly disturbing the sludge at the bottom of the sedimentation tank 6, and improves sedimentation efficiency.

[0027] In a further preferred embodiment of this utility model, the sludge discharge device 8 includes an extension pipe 801, which is installed inside the water distributor 2. One end of the extension pipe 801 is fixedly connected to a nozzle 802. The sludge discharge device 8 also includes a receiving box 803, which is installed on the inner wall of the reactor body 1. A discharge pipe 804 is connected through one side of the receiving box 803, and a valve 805 is fixedly connected to one side of the discharge pipe 804. The nozzle 802 is located at the outlet of the sedimentation tank 6, and the nozzle 802 and the receiving box 803 are at the same horizontal line.

[0028] In this embodiment, the extension pipe 801 extends from inside the water distributor 2 and connects to the nozzle 802. The nozzle 802 is located at the bottom outlet of the sedimentation tank 6, which can accurately guide the water flow to the sludge discharge area to achieve fixed-point water flow induction. This combination can create local water flow disturbance by using the water distribution pressure when the water in the reactor is still, effectively driving the accumulated sludge to move in a preset direction and improving the sludge discharge efficiency. The nozzle 802 is located at the bottom outlet of the sedimentation tank 6 and sprays horizontally toward the receiving box 803, so that the sprayed water flow has a horizontal guiding function, which can directionally push the sludge to the inlet of the receiving box and improve the sludge discharge effect. The nozzle 802 is located at the bottom outlet of the sedimentation tank 6 and is at the same horizontal line as the receiving box 803. When the water from the nozzle 802 forms a directional flow, it can accurately push the mud-water mixture to the inlet of the receiving box 803, realizing the natural collection and gathering of mud and water. This structure can prevent the accumulation of mud and sand in the dead corner at the bottom of the sedimentation tank 6 and improve the concentration and thoroughness of sludge discharge.

[0029] In summary, by setting two connecting rings 701 inside the sedimentation tank 6 and installing inclined plates 702 on the connecting rings 701, a multi-stage stepped buffer and guiding structure is formed. The inclined plates 702 and the connecting rings 701 are fixed with fastening bolts 703, making the structure stable and reliable. During operation, when sewage flows into the sedimentation tank 6 from top to bottom, it first impacts the upper inclined plate 702, weakening the water kinetic energy and guiding it to the lower inclined plate 702. The multi-stage inclined plates 702 successively change the water flow direction and reduce the flow velocity. An extension pipe 801 is set on the basis of the original water distributor 2, and at its end... The nozzle 802 is connected to the end and is located on one side of the sludge discharge area at the bottom of the sedimentation tank 6. During operation, while the water distributor 2 supplies water normally, some water is sprayed out through the nozzle 802 to form a directional water flow. In the relatively static environment inside the reactor body 1, this directional water flow can form a fluid induction effect in the spraying area, which will carry the deposited sludge to the receiving box 803 on one side. The receiving box 803 is set on the inner wall of the reactor and is connected to the outside through the discharge pipe 804. It is controlled by a valve 805. When cleaning is required, the operator only needs to open the valve 805 to smoothly discharge the sludge.

[0030] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0031] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0032] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A high-efficiency anaerobic ammonia oxidation denitrification process device, characterized in that, include: The reactor body (1) is equipped with a water distributor (2), an exposure tube (3) is connected through the reactor body (1), a water outlet pipe (4) is installed on one side of the reactor body (1), a three-phase separator (5) is fixedly connected inside the reactor body (1), and a sedimentation tank (6) is installed below the three-phase separator (5). A buffer device (7) is installed in the settler (6), and a sludge discharge device (8) is installed in the reactor body (1). The buffer device (7) includes two connecting rings (701) on which inclined plates (702) are installed.

2. The anaerobic ammonia oxidation high-efficiency denitrification process device as described in claim 1, characterized in that, The connecting ring (701) is fixedly connected to the precipitator (6), and a fastening bolt (703) is fixedly connected between the connecting ring (701) and the precipitator (6).

3. The anaerobic ammonia oxidation high-efficiency denitrification process device as described in claim 1, characterized in that, The connecting ring (701) is set to be inclined, and the inclined plate (702) has the same inclination angle as the connecting ring (701).

4. The anaerobic ammonia oxidation high-efficiency denitrification process device as described in claim 1, characterized in that, The two inclined plates (702) are set to be relatively inclined and are set to be stepped.

5. The anaerobic ammonia oxidation high-efficiency denitrification process device as described in claim 1, characterized in that, The sludge removal device (8) includes an extension pipe (801), which is installed inside the water distributor (2), and a nozzle (802) is fixedly connected to one end of the extension pipe (801).

6. The anaerobic ammonia oxidation high-efficiency denitrification process device as described in claim 5, characterized in that, The sludge discharge device (8) also includes a receiving box (803), which is installed on the inner wall of the reactor body (1). A discharge pipe (804) is connected through one side of the receiving box (803), and a valve (805) is fixedly connected to one side of the discharge pipe (804).

7. The anaerobic ammonia oxidation high-efficiency denitrification process device as described in claim 6, characterized in that, The nozzle (802) is located at the outlet of the sedimentation tank (6), and the nozzle (802) and the receiving box (803) are on the same horizontal line.

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