Auxiliary device for optimizing effluent quality of biochemical pool of municipal sewage plant
By constructing a biochemical pool effluent water quality auxiliary device with a diversified ecosystem, many problems of traditional municipal sewage treatment plants have been solved, achieving efficient, economical and beautiful sewage treatment effects, and improving effluent water quality and resource utilization efficiency.
Patent Information
- Application Number
- CN202422702394.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-11-06
AI Technical Summary
Traditional municipal sewage treatment plants have problems such as high construction and operation costs, large amounts of residual sludge generated, poor operational stability and reliability, high energy consumption, unsightly appearance, strong odor, and high noise, and the effluent quality is difficult to meet high standards.
An optimized biochemical pool effluent water quality auxiliary device is used, including pretreatment units, biological anaerobic reaction tanks, biological anoxic reaction tanks, ecological food chain reactors, sedimentation tanks and other components. Fixed biofilms and suspended microorganisms are used to degrade pollutants, and combined with aquatic plants, solar energy collection, microporous aeration and other technologies to build a diversified ecosystem and achieve stability in sewage treatment and resource utilization.
Through this device, the stability and reliability of sewage treatment are greatly improved, the operating costs are reduced by more than 30%, the sludge output is small, the operation and maintenance are simple, the landscape effect is good, it has the ability to withstand shock loads, the effluent water quality is stable, and it has significant technical applicability and economic feasibility.
Smart Images
Figure CN223342550U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an auxiliary device for optimizing the effluent quality of a biochemical pool in a municipal sewage plant, belonging to the technical field of sewage treatment. Background Art
[0002] Municipal sewage treatment plants, as essential infrastructure for cities, play a vital role. Their primary task is to centrally treat wastewater collected from cities, industrial areas, and other locations, ensuring that it meets national and local emission standards and does not harm the environment or human health. Traditional municipal sewage treatment primarily utilizes the activated sludge process. While this method can effectively remove organic matter from sewage, in some cases, the effluent quality struggles to meet higher standards. Furthermore, the activated sludge process generally suffers from high construction and operating costs, large amounts of excess sludge generated, poor operational stability and reliability, high energy consumption, unsightly appearance, strong odor, and high noise levels. Summary of the Invention
[0003] In order to solve the problems of high construction and operation cost, large amount of residual sludge, poor operation stability and reliability, high energy consumption, unsightly appearance, strong odor and high noise in the activated sludge method used in traditional municipal sewage treatment plants, the utility model improves the traditional A 2 The original biological reaction pool of the O process is optimized and transformed. Since carbon, nitrogen and phosphorus are nutrients for plants and play a very important role in their life metabolism, and sewage is rich in carbon, nitrogen and phosphorus, the attached fixed biofilm and suspended mobile microorganisms in the bioreactor are used to jointly degrade pollutants in the sewage, which can not only improve the stability and reliability of sewage treatment, but also achieve sustainable utilization of waste resources and improve resource utilization efficiency.
[0004] The technical solution adopted by the utility model is: an auxiliary device for optimizing the effluent quality of the biochemical pool of a municipal sewage plant, wherein the pretreatment unit is connected to the biological anaerobic reaction pool, which is then connected to the biological anoxic reaction pool through a biochemical pipeline, and then connected to the ecological food chain reactor and the sedimentation tank in sequence;
[0005] The ecological food chain reactor is divided into an upper plant growth zone and a lower biological reaction pool by a plant support net. Aquatic plants with long roots and long whiskers are planted on the plant support net. A greenhouse sunlight structure, solar energy collection panels and lighting and heating lamps are arranged on the top of the plant growth zone. Bio-rope fiber filler is arranged in the biological reaction pool, and a microporous aerator is arranged at the bottom of the ecological food chain reactor.
[0006] Furthermore, an anti-entanglement filter is provided above the microporous aerator.
[0007] Furthermore, aisles and plant fences are also provided in the ecological food chain reactor.
[0008] Furthermore, the ecological food chain reactor is also provided with a negative pressure deodorization collection device and a temperature control device.
[0009] Furthermore, the solar energy collection panel provides power for the lighting heating lamp.
[0010] Furthermore, the ecological food chain reactor is connected to the biochemical pipeline via a nitrification liquid reflux pipe, and a variable frequency circulation pump is provided on the nitrification liquid reflux pipe.
[0011] Furthermore, an online nitrate nitrogen detection system is also provided in the auxiliary device.
[0012] The beneficial effects of the present invention are as follows: the auxiliary device includes a pretreatment unit, a biological anaerobic reaction tank, a biological anoxic reaction tank, a greenhouse sunlight structure, a solar energy collection panel, an aisle and plant fence, a plant support net, aquatic plants with long roots or long whiskers, a biological rope fiber filler, an anti-entanglement filter, a microporous aerator, a lighting heating lamp, a temperature control device, a negative pressure deodorization collection system, a variable frequency circulation pump, a nitrate nitrogen online monitoring system, and a sedimentation tank. By constructing a highly diverse ecosystem, combining the activated sludge suspended in the sewage treatment plant, and utilizing the metabolic effects of various microorganisms, aquatic plants, etc. in each secondary ecosystem, the degradation function of pollutants in the water body is enhanced. At the same time, the control system can automatically adjust the operation of the circulation pump according to changes in the effluent water quality to ensure the stability of the effluent water quality. By using this auxiliary device for the effluent water quality of the municipal sewage treatment plant biochemical pool, the operating costs can be reduced by more than 30%. At the same time, it has the advantages of being resistant to shock loads, low sludge production, easy operation and maintenance, good landscape effect, and taking into account odor control. It has significant technical applicability and economic feasibility.
[0013] This auxiliary device optimizes and improves the process flow of urban sewage treatment plants, which not only greatly improves the stability of sewage treatment, but also transforms traditional sewage treatment plants into garden-style sewage treatment plants, opening up a new direction for the optimization and transformation of traditional urban sewage treatment plants. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 Flowchart of an auxiliary device for optimizing the effluent quality of a biochemical pool in a municipal sewage treatment plant.
[0015] In the figure: 1. Pretreatment unit, 2. Biological anaerobic reaction tank, 3. Biological anoxic reaction tank, 4. Greenhouse sunlight structure, 5. Solar energy collection panel, 6. Aisle and plant fence, 7. Plant support net, 8. Aquatic plants with long roots and long whiskers, 9. Biological rope fiber filler, 10. Anti-entanglement filter, 11. Microporous aerator, 12. Lighting and heating lamp, 13. Temperature control device, 14. Negative pressure deodorization and collection system, 15. Frequency conversion circulation pump, 16. Nitrate nitrogen online monitoring system, 17. Sedimentation tank, 18. Ecological food chain reactor, 19. Nitration liquid reflux pipe, 20. Biochemical pipeline. DETAILED DESCRIPTION
[0016] The present invention will be described below with reference to the accompanying drawings and specific embodiments:
[0017] Figure 1 A flow chart showing an auxiliary device for optimizing the effluent quality of a biochemical pool in a municipal sewage plant.
[0018] This enhanced biochemical pool effluent water quality process improvement device includes: a pretreatment unit 1, a biological anaerobic reaction tank 2, a biological anoxic reaction tank 3, a greenhouse sunlight structure 4, a solar energy collection panel 5, an aisle and plant fence 6, a plant support net 7, long-rooted and long-bearded aquatic plants 8, a biological rope fiber filler 9, an anti-entanglement filter 10, a microporous aerator 11, a lighting heating lamp 12, a temperature control device 13, a negative pressure deodorization collection system 14, a variable frequency circulation pump 15, a nitrate nitrogen online monitoring system 16, and a sedimentation tank 17. The pretreatment unit 1 is connected to the anaerobic bioreactor 2, which is then connected to the anoxic bioreactor 3 via a biochemical pipeline 20. The anoxic bioreactor 3 is connected to the ecological food chain reactor 18 via a pipeline. The outlet pipe of the ecological food chain reactor 18 is connected to the sedimentation tank 17. The ecological food chain reactor 18 is divided into an upper plant growth zone and a lower biological reaction tank by a plant support net 7. Aquatic plants with long roots and long tendrils 8 are planted on the plant support net 7. The top of the plant growth zone is equipped with a greenhouse sunlight structure 4, a solar energy collection panel 5, and a light-generating heating lamp 12. The biological reaction tank is equipped with a bio-rope fiber packing 9, and a microporous aerator 11 is installed at the bottom of the biological reaction tank. An anti-entanglement filter is also installed above the microporous aerator. The ecological food chain reactor also has an aisle and plant fences. The ecological food chain reactor is also equipped with a negative pressure deodorization and collection device and a temperature control device. The solar energy collection panel provides power for the light-generating heating lamp. The ecological food chain reactor is connected to the biochemical pipeline via a nitrification liquid return pipe, which is equipped with a variable frequency circulation pump. The auxiliary device is also equipped with an online nitrate nitrogen detection system.
[0019] The specific implementation method is as follows: After the sewage is physically treated by the coarse screen, fine screen, fine screen, lifting pump, and aeration grit chamber of the pretreatment unit 1, it enters the biological anaerobic reaction tank 2 and the biological anoxic reaction tank 3 of the biochemical treatment unit in sequence, and then enters the ecological food chain reactor 18. Through natural and artificial methods, the sewage ecological food chain is constructed, and the COD in the sewage is removed by using microorganisms, protozoa, and micro-animals attached to the roots of long-rooted and long-bearded aquatic plants 8 and the surface of the biological rope fiber filler 9 carrier. cr , BOD5, TN, NH3-N, TP and other pollutants.
[0020] During the day, the greenhouse sunlight structure 4 can collect the necessary light conditions for the growth of long-rooted and long-bearded aquatic plants 8. The temperature control device 13 can monitor the ambient temperature in real time and maintain it at around 30°C, which is suitable for growth. In winter or at night, the light-collecting heating lamps 12 can also collect the necessary light conditions for the growth of long-rooted and long-bearded aquatic plants 8. The solar energy collection panels 5 provide power for the light-collecting heating lamps 12. Aisles and plant fences 6 are provided for on-site operators to inspect. The plant support net 7 supports the long-rooted and long-bearded aquatic plants 8. At the bottom of the ecological food chain reactor is a microporous aerator 11, which provides living conditions for aerobic microorganisms. The anti-entanglement filter 10 prevents aquatic plant roots from entangled in the microporous aerator 11. The negative pressure deodorization collection system 14 adopts a negative pressure ventilation design and uses the ion deodorization principle of simultaneously supplying and exhausting air to deodorize the ecological food chain reactor. The nitrate nitrogen online monitoring system 16 monitors the effluent quality of the ecological food chain reactor 18 in real time. It adjusts the operation of the variable frequency circulation pump 15 based on changes in effluent quality, returning the effluent from the ecological food chain reactor 18 through the nitrification liquid return pipe 19 to the biochemical pipeline 20 for further water treatment. Finally, the effluent from the ecological food chain reactor 18 enters the sedimentation tank 17 for mud and water separation.
[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. An auxiliary device for optimizing the effluent quality of a biochemical pool in a municipal sewage treatment plant, characterized by: The pretreatment unit (1) is connected to the biological anaerobic reaction tank (2), and then connected to the biological anoxic reaction tank (3) through a biochemical pipeline (20). The biological anoxic reaction tank (3) is connected to the ecological food chain reactor (18) through a pipeline; the outlet pipe of the ecological food chain reactor (18) is connected to the sedimentation tank (17); The ecological food chain reactor (18) is divided into an upper plant growth zone and a lower biological reaction pool by a plant support net (7), and aquatic plants (8) with long roots and long whiskers are planted on the plant support net (7); a greenhouse sunlight structure (4), a solar energy collection panel (5) and a lighting heating lamp (12) are arranged on the top of the plant growth zone; a biological rope fiber filler (9) is arranged in the biological reaction pool, and a microporous aerator (11) is arranged at the bottom of the biological reaction pool.
2. The auxiliary device for optimizing the effluent quality of the biochemical pool of a municipal sewage treatment plant according to claim 1, characterized in that: An anti-entanglement filter (10) is also provided above the microporous aerator (11).
3. The auxiliary device for optimizing the effluent quality of the biochemical pool of a municipal sewage treatment plant according to claim 1, characterized in that: Aisles and plant fences (6) are also provided in the ecological food chain reactor (18).
4. The auxiliary device for optimizing the effluent quality of the biochemical pool of a municipal sewage treatment plant according to claim 1, characterized in that: The ecological food chain reactor (18) is also provided with a negative pressure deodorization collection device (14) and a temperature control device (13).
5. The auxiliary device for optimizing the effluent quality of the biochemical pool of a municipal sewage treatment plant according to claim 1, characterized in that: The solar energy collection panel (5) supplies power to the lighting heating lamp (12).
6. The auxiliary device for optimizing the effluent quality of the biochemical pool of a municipal sewage treatment plant according to claim 1, characterized in that: The ecological food chain reactor (18) is connected to the biochemical pipeline (20) via the nitrification liquid reflux pipe (19), and a variable frequency circulation pump (15) is provided on the nitrification liquid reflux pipe (19).
7. The auxiliary device for optimizing the effluent quality of the biochemical pool of a municipal sewage treatment plant according to claim 1, characterized in that: The auxiliary device is also provided with a nitrate nitrogen online detection system (16).