Integrated nitrification and denitrification filter tank device
By designing an integrated nitration denitrification filter device and integrating nitration and denitrification processes, the complexity and high cost problems caused by the separation of processes in traditional sewage treatment processes are solved, and efficient and compact sewage treatment is achieved, reducing operating costs.
Patent Information
- Application Number
- CN202422046499.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-22
AI Technical Summary
In traditional sewage treatment processes, nitration and denitrification processes are usually carried out separately, increasing the treatment complexity, space occupation and operational costs, and reducing the sewage treatment efficiency.
An integrated nitration denitrification filter device is designed, and by integrating nitration and denitrification processes in the same device, using specific cavity and flow path design, the efficient treatment of sewage is achieved.
The treatment process is simplified, space and equipment investment is reduced, energy consumption and operation costs are reduced, sewage treatment efficiency is improved, and the effluent water quality is more stable and reliable.
Smart Images
Figure CN222974988U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewage treatment, and particularly relates to an integrated nitrification and denitrification filter device. Background Art
[0002] With the increasing awareness of environmental protection and the growing shortage of water resources, sewage treatment and reuse technologies have received extensive attention and research. In the traditional sewage treatment process, the nitrification and denitrification processes are usually carried out separately, which not only increases the complexity of the treatment process, but also occupies a large space, raises the operating cost, and reduces the sewage treatment efficiency. Therefore, the development of an integrated treatment device that can simultaneously achieve nitrification and denitrification functions has become a current research hotspot. Content of the Utility Model
[0003] Aiming at the defects in the prior art, the utility model provides an integrated nitrification and denitrification filter device.
[0004] An integrated nitrification and denitrification filter device includes a pool body. The pool body is sequentially provided with a first cavity, a second cavity and a third cavity from left to right. An aeration plate is laid at the bottom of the first cavity. A gas source pipeline connecting the aeration plate is arranged inside the second cavity. A liquid delivery pipeline connecting the first cavity is also arranged inside the second cavity. Among them, the third cavity is sealed and a reaction cavity is formed therein. A gas collection pipeline is connected to the top of the reaction cavity. A delivery port connecting the liquid delivery pipeline is arranged at the left end of the reaction cavity. The delivery port is communicated with a diversion groove arranged in the upper half of the reaction cavity. A leakage port is arranged at the right end of the diversion groove. A support frame body is arranged in the lower half of the reaction cavity. The support frame body divides the reaction cavity into an upper liquid cavity and a lower liquid cavity. A filter material layer located in the upper liquid cavity is arranged on the support frame body. A plurality of through holes are formed in the support frame body. A liquid inlet is arranged on the left side of the first cavity. A liquid outlet is arranged on the right side of the third cavity.
[0005] Preferably, the filter material layer includes denitrifying bacteria, ceramsite, anthracite and volcanic rock. The filter material layer is the core part of the denitrification process. Among them, denitrifying bacteria are the main microorganisms that perform the denitrification process. They reduce nitrates to nitrogen gas, thereby removing nitrogen in the water. Ceramsite, anthracite and volcanic rock provide a good biological attachment surface and pore structure, which is beneficial to the growth and reproduction of denitrifying bacteria, and also enhances the filtering and adsorption capacity of the filter material layer.
[0006] Preferably, a reflux pipeline connecting the first cavity is arranged on the side of the third cavity. The design of the reflux pipeline realizes the partial reflux of the treated water, which helps to balance the water inflow, improve the treatment effect, reduce the treatment load, improve the overall treatment efficiency, and enhance the stability and shock resistance of the system.
[0007] Preferably, the support frame body includes a left support bar and a right support bar. The support frame is fixed between the left support bar and the right support bar, and the filter media layer is arranged on the support frame. The design of the support frame body is ingenious and stable. It can not only bear the weight of the filter media layer, but also ensure that the filter media layer is evenly and stably distributed on the support frame. This structure helps to prevent the collapse or displacement of the filter media layer, thus ensuring the smooth progress of the denitrification process.
[0008] Preferably, a plurality of partition walls distributed in the vertical direction are fixed inside the third cavity. The partition walls divide the third cavity into a plurality of reaction chambers, and the gas collecting pipeline is respectively connected to the plurality of reaction chambers. By dividing the third cavity into a plurality of reaction chambers through the partition walls, the contact area between the sewage and the denitrifying bacteria can be increased, and the reaction efficiency can be improved. At the same time, each reaction chamber is connected to the outside through the gas collecting pipeline to ensure that the generated gases such as nitrogen can be discharged in time, preventing the accumulation of gases from having an adverse effect on the reaction.
[0009] Preferably, the diversion groove is fixed on the partition wall. Fixing the diversion groove on the partition wall not only ensures the stability of the diversion groove, but also ensures that the sewage treated by nitrification can flow evenly into the upper half of each reaction chamber along the diversion groove. This design not only optimizes the flow path of the sewage, but also improves the uniformity and efficiency of the denitrification treatment.
[0010] Preferably, a sealing joint penetrating through the top of the third cavity is arranged at the end of the gas collecting pipeline. The setting of the sealing joint ensures the sealing performance between the gas collecting pipeline and the external environment, preventing gas leakage. This not only improves the safety of the system, but also ensures that the generated gases are effectively collected and treated, thus reducing environmental pollution. At the same time, the design of the sealing joint also facilitates the installation and maintenance of the gas collecting pipeline.
[0011] The beneficial effects of the present utility model are embodied in:
[0012] In the present utility model, through an integrated design, the nitrification and denitrification processes are integrated in the same device, significantly simplifying the treatment process and reducing the required space, making the entire sewage treatment system more compact and efficient. At the same time, it reduces equipment investment and energy consumption. Due to the simplified treatment process, it also reduces labor costs and management complexity, thus further reducing the overall operating cost. Further, through the setting of specific cavities and flow path designs, efficient treatment of sewage is achieved. The first cavity conducts nitrification reaction, and the third cavity conducts denitrification reaction. The sewage after nitrification reaction enters the diversion trough and overflows from the edge of the diversion trough or flows out from the leakage opening of the diversion trough. Depending on gravity, it flows downward and undergoes sufficient denitrification reaction through the filter media layer, generating nitrogen. Moreover, the first cavity and the third cavity are connected by the liquid delivery pipeline of the second cavity, ensuring the smooth flow and sufficient reaction of sewage in the device. This design helps to improve the sewage treatment efficiency and makes the effluent quality more stable and reliable. Further, in traditional denitrification reactors, the distribution of sewage is often uneven, which may lead to overloading of denitrifying bacteria in some areas while other areas may be idle. Such uneven reaction conditions not only reduce the denitrification efficiency but also may lead to unstable treatment effects. However, the diversion trough in the present technical solution can evenly divert the nitrified sewage to the leakage opening at its right end, ensuring that the sewage that has not undergone denitrification treatment is evenly distributed in the upper half of the reaction chamber before overflowing from the diversion trough. Since the sewage is evenly distributed in the upper half of the reaction chamber, the denitrifying bacteria can more fully contact the nitrates in the sewage, thereby increasing the reaction rate and treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0014] Figure 1 is a schematic structural diagram of the present utility model;
[0015] Figure 2 is a top view of the structure of the present utility model;
[0016] Figure 3 For the present utility model Figure 2 is a sectional view of the structure in the A-A direction;
[0017] Figure 4 For the present utility model Figure 2 is a sectional view of the structure in the B-B direction.
[0018] Reference Numerals:
[0019] 1 - Pool body, 11 - First cavity, 111 - Liquid inlet, 12 - Second cavity, 13 - Third cavity, 131 - Reaction chamber, 1311 - Delivery port, 132 - Liquid outlet, 2 - Aeration plate, 3 - Gas source pipeline, 4 - Liquid delivery pipeline, 5 - Flow guide groove, 6 - Support frame body, 61 - Left support bar, 62 - Right support bar, 7 - Filter media layer, 8 - Return pipeline, 9 - Partition wall, 10 - Gas collecting pipeline, 101 - Sealing joint. Detailed implementation manners
[0020] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.
[0022] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for differential description and cannot be construed as indicating or implying relative importance..
[0023] Such as Figures 1 to 4As shown in the figure, an integrated nitrification and denitrification filter device includes a pool body 1. From left to right, the pool body 1 is sequentially provided with a first cavity 11, a second cavity 12, and a third cavity 13. An aeration plate 2 is laid at the bottom of the first cavity 11. A gas source pipeline 3 connected to the aeration plate 2 is arranged inside the second cavity 12. A liquid delivery pipeline 4 connected to the first cavity 11 is also arranged inside the second cavity 12. Among them, the third cavity 13 is airtight and a reaction cavity 131 is formed therein. A gas collection pipeline 10 is connected to the top of the reaction cavity 131. A delivery port 1311 connected to the liquid delivery pipeline 4 is arranged at the left end of the reaction cavity 131. The delivery port 1311 is communicated with a diversion groove 5 arranged in the upper half of the reaction cavity 131. A leakage port is arranged at the right end of the diversion groove 5. A support frame 6 is partitioned in the lower half of the reaction cavity 131. The support frame 6 divides the reaction cavity 131 into an upper liquid cavity and a lower liquid cavity. A filter material layer 7 located in the upper liquid cavity is arranged on the support frame body. A plurality of through holes are opened on the support frame 6. A liquid inlet 111 is opened on the left side of the first cavity 11. A liquid outlet 132 is opened on the right side of the third cavity 13.
[0024] In this embodiment, it should be noted that through the integrated design, the nitrification and denitrification processes are integrated in the same device, significantly simplifying the treatment process and reducing the required space, making the entire sewage treatment system more compact and efficient. At the same time, it reduces equipment investment and energy consumption. Due to the simplified treatment process, it also reduces labor costs and management complexity, thus further reducing the overall operating cost. Further, through the setting of specific cavities and flow path designs, efficient treatment of sewage is achieved. The first cavity 11 performs nitrification reaction, and the third cavity 13 performs denitrification reaction. The sewage after nitrification reaction enters the diversion groove 5 and overflows from the edge of the diversion groove 5 or flows out from the leakage port of the diversion groove 5. It flows downward by gravity and undergoes sufficient denitrification reaction through the filter material layer 7 to generate nitrogen. Moreover, the first cavity 11 and the third cavity 13 are connected by the liquid delivery pipeline 4 of the second cavity 12, ensuring the smooth flow and full reaction of sewage in the device. This design helps to improve the treatment efficiency of sewage and makes the effluent quality more stable and reliable. Further, in traditional denitrification reactors, the distribution of sewage is often uneven, which may lead to overloading of denitrifying bacteria in some areas while other areas may be idle. This uneven reaction condition not only reduces the denitrification efficiency but also may lead to unstable treatment effects. However, the diversion groove 5 in this technical solution can evenly divert the nitrified sewage to the leakage port at its right end, ensuring that the sewage that has not undergone denitrification treatment is evenly distributed in the upper half of the reaction cavity 131 before overflowing from the diversion groove 5. Since the sewage is evenly distributed in the upper half of the reaction cavity 131, the denitrifying bacteria can more fully contact the nitrate in the sewage, thereby improving the reaction rate and treatment effect.
[0025] Specifically, the filter media layer 7 includes denitrifying bacteria, ceramsite, anthracite, and volcanic rock.
[0026] In this embodiment, it should be noted that the filter media layer 7 is the core part of the denitrification process. Among them, denitrifying bacteria are the main microorganisms that execute the denitrification process. They reduce nitrates to nitrogen gas, thereby removing nitrogen from the water. Ceramsite, anthracite, and volcanic rock provide a good biological attachment surface and pore structure, which are conducive to the growth and reproduction of denitrifying bacteria. At the same time, they also enhance the filtration and adsorption capacity of the filter media layer 7.
[0027] Specifically, a reflux pipeline 8 connecting the first cavity 11 is provided on the side of the third cavity 13.
[0028] In this embodiment, it should be noted that the design of the reflux pipeline 8 realizes partial reflux of the treated water. This helps to balance the influent volume, improve the treatment effect, reduce the treatment load, improve the overall treatment efficiency, and enhance the stability and shock resistance of the system.
[0029] Specifically, the support frame 6 includes a left support bar 61 and a right support bar 62. A support frame is fixed between the left support bar 61 and the right support bar 62, and the filter media layer 7 is arranged on the support frame.
[0030] In this embodiment, it should be noted that the design of the support frame 6 is ingenious and stable. It can not only bear the weight of the filter media layer 7 but also ensure that the filter media layer 7 is evenly and stably distributed on the support frame. This structure helps to prevent the collapse or displacement of the filter media layer 7, thus ensuring the smooth progress of the denitrification process.
[0031] Specifically, a plurality of partition walls 9 distributed in the vertical direction are fixed inside the third cavity 13. The partition walls 9 divide the third cavity 13 into a plurality of reaction chambers 131, and the gas collecting pipeline 10 is respectively connected to the plurality of reaction chambers 131.
[0032] In this embodiment, it should be noted that by dividing the third cavity 13 into a plurality of reaction chambers 131 through the partition walls 9, the contact area between the sewage and denitrifying bacteria can be increased, and the reaction efficiency can be improved. At the same time, each reaction chamber 131 is connected to the outside through the gas collecting pipeline 10 to ensure that gases such as nitrogen produced can be discharged in time, preventing the accumulation of gases from having an adverse impact on the reaction.
[0033] Specifically, the diversion trough 5 is fixed on the partition wall 9.
[0034] In this embodiment, it should be noted that fixing the diversion trough 5 on the partition wall 9 not only ensures the stability of the diversion trough 5 but also ensures that the sewage treated by nitrification can flow evenly into the upper half of each reaction chamber 131 along the diversion trough 5. This design not only optimizes the flow path of the sewage but also improves the uniformity and efficiency of the denitrification treatment.
[0035] Specifically, a sealing joint 101 is provided at the end of the gas collecting pipeline 10 and penetrates through the top of the third cavity 13.
[0036] In this embodiment, it should be noted that the setting of the sealing joint 101 ensures the sealing between the gas collecting pipeline 10 and the external environment, preventing gas leakage. This not only improves the safety of the system but also ensures that the generated gas is effectively collected and processed, thereby reducing environmental pollution. At the same time, the design of the sealing joint 101 also facilitates the installation and maintenance of the gas collecting pipeline 10.
[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.
Claims
1. An integrated nitrification and denitrification filter device, characterized in that: The tank body comprises a first cavity, a second cavity and a third cavity, which are arranged from left to right in sequence. An aeration plate is laid at the bottom of the first cavity. An air source pipeline connected to the aeration plate is arranged inside the second cavity. A liquid delivery pipeline connected to the first cavity is also arranged inside the second cavity. The third cavity is sealed and has a reaction chamber formed therein, the top of the reaction chamber is connected to a gas collecting pipeline, the left end of the reaction chamber is provided with a delivery port connected to the liquid delivery pipeline, the delivery port is connected to a guide groove provided in the upper half of the reaction chamber, the right end of the guide groove is provided with a leakage port, the lower half of the reaction chamber is separated by a support frame, the support frame separates the reaction chamber into an upper liquid chamber and a lower liquid chamber, the support frame is provided with a filter material layer located in the upper liquid chamber, and the support frame is provided with a plurality of through openings; A liquid inlet is provided on the left side of the first cavity, and a liquid outlet is provided on the right side of the third cavity.
2. The integrated nitrification and denitrification filter device according to claim 1, characterized in that: The filter material layer comprises denitrifying bacteria, ceramsite, anthracite and volcanic rock.
3. The integrated nitrification and denitrification filter device according to claim 1, characterized in that: A reflux pipeline connected to the first cavity is provided on the side of the third cavity.
4. The integrated nitrification and denitrification filter device according to claim 1, characterized in that: The support frame comprises a left support bar and a right support bar, a support frame is fixed between the left support bar and the right support bar, and the filter material layer is arranged on the support frame.
5. The integrated nitrification and denitrification filter device according to claim 1, characterized in that: A plurality of partition walls distributed in the vertical direction are fixed inside the third cavity, the partition walls divide the third cavity into a plurality of reaction chambers, and the gas collecting pipelines are respectively connected to the plurality of reaction chambers.
6. The integrated nitrification and denitrification filter device according to claim 5, characterized in that: The guide groove is fixed on the partition wall.
7. The integrated nitrification and denitrification filter device according to claim 1, characterized in that: The end of the gas collecting pipeline is provided with a sealing joint penetrating the top of the third cavity.