A biochemical system pilot plant device
Patent Information
- Application Number
- CN202522127286.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-10-09
AI Technical Summary
[0003]本实用新型的目的在于提供一种生化系统中试装置，具备污水处理效果好的优点，解决了现有污水系统对新增及特殊水质处理效果不佳的问题
1、本实用新型工作台顶部依次设置的厌氧池、缺氧池、好氧池和二沉池，可完整模拟生化处理的各阶段反应，实现污染物的分段降解；厌氧池通过进水管引入待处理废水，经第一连接管、第二连接管、第三连接管依次自流至后续池体，保证水流连续且符合实际处理的水力路径；缺氧池的第一泥水回流泵、好氧池的第二泥水回流泵、二沉池的第三泥水回流泵将泥水回流至厌氧池，实现污泥循环，提升微生物浓度与降解能力；进水管及各连接管内的COD传感器可实时监测污染物浓度变化，厌氧池、缺氧池、好氧池内的溶解氧传感器监控反应环境，为工艺参数调节提供数据依据；厌氧池和缺氧池顶部的电机驱动搅拌棒旋转，确保池内泥水混合均匀，避免局部反应不充分，提升污染物降解效率。
Smart Images
Figure CN224768607U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, specifically to a pilot-scale device for a biochemical system. Background Technology
[0002] Wastewater biological treatment utilizes the metabolic processes of microorganisms to degrade organic pollutants and remove nitrogen and phosphorus. It is a core technology for industrial and domestic wastewater treatment. In practical applications, wastewater composition is complex and variable, containing high concentrations of organic matter, heavy metals, and toxic substances, posing a significant challenge to the stability of the biological system. Activated sludge, as the core treatment component, has weak adaptability to specific water qualities. When subjected to high-load shocks or sudden changes in water quality, it is prone to problems such as suppressed sludge activity and microbial community collapse, leading to a sharp drop in treatment efficiency. Furthermore, process wastewater from various workshops and stages is typically collected and treated centrally after mixing, which not only keeps the wastewater treatment plant operating under overload conditions for extended periods. This leads to insufficient hydraulic retention time and incomplete pollutant degradation. Furthermore, the significant differences in pollutant concentrations among different wastewaters greatly increase treatment costs and, in severe cases, even paralyze the entire biological system, affecting normal production. More importantly, existing technologies lack effective preliminary simulation testing methods. When new wastewater or water quality fluctuations occur, it is impossible to assess their impact on the existing system in advance, forcing direct implementation of actual treatment, which carries extremely high operational risks. These problems result in low wastewater treatment efficiency, poor stability, and high costs. There is an urgent need for a pilot-scale device that can accurately simulate actual working conditions, optimize process parameters through preliminary testing, and provide reliable technical support for actual treatment. Utility Model Content
[0003] The purpose of this invention is to provide a pilot-scale device for a biochemical system, which has the advantage of good sewage treatment effect and solves the problem that the existing sewage system is not effective in treating new and special water quality.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a pilot-scale biochemical system, comprising a workbench, on the top of which, from left to right, are sequentially installed an anaerobic tank, an anoxic tank, an aerobic tank, and a secondary sedimentation tank. An inlet pipe is fixedly connected to the left end of the top of the anaerobic tank. A first sludge-water return pump is fixedly connected to the top of the anoxic tank; the suction port of the first sludge-water return pump is fixedly connected to the lower part of the inner cavity of the anoxic tank via a pipe, and the outlet of the first sludge-water return pump is fixedly connected to the top of the anaerobic tank via a pipe. A second sludge-water return pump is fixedly connected to the top of the aerobic tank; the suction port of the second sludge-water return pump is fixedly connected to the lower part of the inner cavity of the aerobic tank via a pipe, and the outlet of the second sludge-water return pump is fixedly connected to the anaerobic tank via a pipe. A third sludge-water return pump is fixedly connected to the top of the secondary sedimentation tank; the suction port of the third sludge-water return pump is fixedly connected to the lower part of the inner cavity of the secondary sedimentation tank via a pipe. The outlet of the third sludge return pump is fixedly connected to the anaerobic tank via a pipe. A first connecting pipe is fixedly connected to the upper right side of the anaerobic tank. The other end of the first connecting pipe is fixedly connected to the lower left side of the anoxic tank. A second connecting pipe is fixedly connected to the upper right side of the anoxic tank. The other end of the second connecting pipe is fixedly connected to the lower left side of the aerobic tank. A third connecting pipe is fixedly connected to the upper right side of the aerobic tank. The other end of the third connecting pipe is fixedly connected to the top of the secondary sedimentation tank. COD sensors are fixedly connected to the inner cavities of the inlet pipe, the first connecting pipe, the second connecting pipe, and the third connecting pipe. Dissolved oxygen sensors are installed in the inner cavities of the anaerobic tank, the anoxic tank, and the aerobic tank. A motor is fixedly connected to the top of the anaerobic tank and the anoxic tank. A stirring rod is rotatably connected to the top of the inner cavities of the anaerobic tank and the anoxic tank via a bearing. The output shaft of the motor is fixedly connected to the stirring rod.
[0005] Preferably, a drain outlet is provided at the bottom of the inner cavity of the secondary sedimentation tank, and a second solenoid valve is fixedly connected to the inner cavity of the drain outlet.
[0006] Preferably, a drain pipe is fixedly connected to the bottom of the right side of the inner cavity of the secondary sedimentation tank, and a first solenoid valve is installed in the inner cavity of the drain pipe.
[0007] Preferably, support legs are installed around the bottom of the workbench, and the bottom of the support legs is provided with anti-slip texture. A battery box is fixedly connected to the left end of the bottom of the workbench, and a storage battery is fixedly connected to the inner cavity of the battery box.
[0008] Preferably, a toolbox is fixedly connected to the right end of the bottom of the workbench, and a partition is fixedly connected to the inner cavity of the toolbox.
[0009] Preferably, a display is fixedly connected to the top of the workbench, and the input terminal of the display is electrically connected to the output terminals of the COD sensor and the dissolved oxygen sensor.
[0010] Preferably, a PLC controller is fixedly connected to the top of the workbench. The output terminal of the PLC controller is electrically connected to the input terminals of the motor, the first solenoid valve, the second solenoid valve, the second sludge return pump, and the third sludge return pump. The input terminal of the PLC controller is electrically connected to the output terminals of the COD sensor and the dissolved oxygen sensor.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The anaerobic tank, anoxic tank, aerobic tank, and secondary sedimentation tank sequentially arranged on the top of the workbench of this utility model can completely simulate the various stages of biochemical treatment and realize the segmented degradation of pollutants. The anaerobic tank introduces the wastewater to be treated through the inlet pipe, and then flows by gravity to the subsequent tanks through the first, second, and third connecting pipes, ensuring continuous water flow and conforming to the hydraulic path of actual treatment. The first sludge return pump in the anoxic tank, the second sludge return pump in the aerobic tank, and the third sludge return pump in the secondary sedimentation tank return the sludge to the anaerobic tank, realizing sludge recycling and improving the concentration of microorganisms and degradation capacity. The COD sensor in the inlet pipe and each connecting pipe can monitor the changes in pollutant concentration in real time, and the dissolved oxygen sensor in the anaerobic, anoxic, and aerobic tanks monitors the reaction environment, providing data basis for process parameter adjustment. The motor-driven stirring rods on the top of the anaerobic and anoxic tanks rotate to ensure uniform mixing of sludge and water in the tanks, avoid incomplete local reactions, and improve the pollutant degradation efficiency.
[0012] 2. The drain outlet at the bottom of the secondary sedimentation tank of this utility model works in conjunction with the second solenoid valve to periodically discharge excess sludge, preventing tank blockage and ensuring sedimentation effect; the drain pipe at the bottom right side works in conjunction with the first solenoid valve to facilitate precise control of the discharge of treated clean water and flexible operation; the support legs around the bottom of the workbench are reinforced with anti-slip texture to enhance overall stability and prevent vibration from affecting monitoring accuracy and water flow stability during device operation; the battery in the battery box at the left end supplies power to the motor, reflux pump, sensors and other core components in the event of a sudden power outage, ensuring uninterrupted testing; the toolbox at the right end uses partitions to classify and store maintenance tools and spare parts for quick repair; the display at the top can intuitively show the monitoring data of the COD sensor and dissolved oxygen sensor. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the right-side structure of this utility model; Figure 3 This is a schematic diagram of the front sectional view of the present invention.
[0014] In the diagram: 1. Workbench; 2. Toolbox; 3. Battery box; 4. Support leg; 5. Anaerobic tank; 6. Inlet pipe; 7. Motor; 8. Anoxic tank; 9. Aerobic tank; 10. Secondary sedimentation tank; 11. First connecting pipe; 12. First sludge return pump; 13. Second connecting pipe; 14. COD sensor; 15. Drain pipe; 16. First solenoid valve; 17. PLC controller; 18. Display; 19. Stirring rod; 20. Dissolved oxygen sensor; 21. Sewage outlet; 22. Second solenoid valve; 23. Battery; 24. Third connecting pipe; 25. Second sludge return pump; 26. Third sludge return pump. Detailed Implementation
[0015] 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.
[0016] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example
[0017] Please see Figure 1-3As shown, this utility model provides a pilot-scale device for a biochemical system, including a workbench 1. From left to right, an anaerobic tank 5, an anoxic tank 8, an aerobic tank 9, and a secondary sedimentation tank 10 are sequentially installed on the top of the workbench 1. An inlet pipe 6 is fixedly connected to the left end of the top of the anaerobic tank 5. A first sludge-water return pump 12 is fixedly connected to the top of the anoxic tank 8. The suction port of the first sludge-water return pump 12 is fixedly connected to the lower part of the inner cavity of the anoxic tank 8 via a pipe, and the outlet of the first sludge-water return pump 12 is connected to... A second sludge return pump 25 is fixedly connected to the top of the anaerobic tank 5 and the top of the aerobic tank 9. The suction port of the second sludge return pump 25 is fixedly connected to the lower part of the inner cavity of the aerobic tank 9 through a pipe, and the outlet of the second sludge return pump 25 is fixedly connected to the anaerobic tank 5 through a pipe. A third sludge return pump 26 is fixedly connected to the top of the secondary sedimentation tank 10. The suction port of the third sludge return pump 26 is fixedly connected to the lower part of the inner cavity of the secondary sedimentation tank 10 through a pipe. The outlet is fixedly connected to the anaerobic tank 5 via a pipe. A first connecting pipe 11 is fixedly connected to the upper right side of the anaerobic tank 5. The other end of the first connecting pipe 11 is fixedly connected to the lower left side of the inner cavity of the anoxic tank 8. A second connecting pipe 13 is fixedly connected to the upper right side of the anoxic tank 8. The other end of the second connecting pipe 13 is fixedly connected to the lower left side of the inner cavity of the aerobic tank 9. A third connecting pipe 24 is fixedly connected to the upper right side of the aerobic tank 9. The other end of the third connecting pipe 24 is fixedly connected to the top of the inner cavity of the secondary sedimentation tank 10. A COD sensor 14 is fixedly connected to the inner cavity of the inlet pipe 6, the first connecting pipe 11, the second connecting pipe 13, and the third connecting pipe 24. Dissolved oxygen sensors 20 are installed in the inner cavities of the anaerobic tank 5, the anoxic tank 8, and the aerobic tank 9. A motor 7 is fixedly connected to the top of the anaerobic tank 5 and the anoxic tank 8. A stirring rod 19 is rotatably connected to the top of the inner cavity of the anaerobic tank 5 and the anoxic tank 8 via a bearing. The output shaft of the motor 7 is fixedly connected to the stirring rod 19.
[0018] The anaerobic tank 5, anoxic tank 8, aerobic tank 9, and secondary sedimentation tank 10, arranged sequentially on the top of the workbench 1 in this technical solution, can completely simulate the various stages of biochemical treatment and achieve the segmented degradation of pollutants. The anaerobic tank 5 introduces wastewater to be treated through the inlet pipe 6, and then flows by gravity through the first connecting pipe 11, the second connecting pipe 13, and the third connecting pipe 24 to the subsequent tanks, ensuring continuous water flow and conforming to the actual hydraulic path of the treatment process. The first sludge return pump 12 of the anoxic tank 8, the second sludge return pump 25 of the aerobic tank 9, and the third sludge return pump 24 of the secondary sedimentation tank 10... The three-stage sludge return pump 26 returns sludge to the anaerobic tank 5, realizing sludge recycling and improving the concentration and degradation capacity of microorganisms. The COD sensor 14 in the inlet pipe 6 and each connecting pipe can monitor the changes in pollutant concentration in real time. The dissolved oxygen sensor 20 in the anaerobic tank 5, anoxic tank 8, and aerobic tank 9 monitors the reaction environment and provides data for adjusting process parameters. The motor 7 at the top of the anaerobic tank 5 and anoxic tank 8 drives the stirring rod 19 to rotate, ensuring that the sludge and water in the tank are mixed evenly, avoiding insufficient local reaction, and improving the pollutant degradation efficiency. Example
[0019] Based on Embodiment 1, this utility model is as follows: Figure 1-3 As shown, a drain outlet 21 is provided at the bottom of the inner cavity of the secondary sedimentation tank 10. A second solenoid valve 22 is fixedly connected to the inner cavity of the drain outlet 21. A drain pipe 15 is fixedly connected to the bottom right side of the inner cavity of the secondary sedimentation tank 10. A first solenoid valve 16 is installed in the inner cavity of the drain pipe 15. Support legs 4 are installed around the bottom of the workbench 1. The bottom of the support legs 4 is provided with anti-slip texture. A battery box 3 is fixedly connected to the left end of the bottom of the workbench 1. A storage battery 23 is fixedly connected to the inner cavity of the battery box 3. A toolbox 2 is fixedly connected to the right end of the bottom of the workbench 1. The toolbox 2 has an inner cavity... A partition is fixedly connected to the top of the workbench 1. A display 18 is fixedly connected to the top of the workbench 1. The input terminal of the display 18 is electrically connected to the output terminal of the COD sensor 14 and the dissolved oxygen sensor 20. A PLC controller 17 is fixedly connected to the top of the workbench 1. The output terminal of the PLC controller 17 is electrically connected to the input terminal of the motor 7, the first solenoid valve 16, the second solenoid valve 22, the second mud and water return pump 25, and the third mud and water return pump 26. The input terminal of the PLC controller 17 is electrically connected to the output terminal of the COD sensor 14 and the dissolved oxygen sensor 20.
[0020] In this technical solution, the drain outlet 21 at the bottom of the sedimentation tank 10 works in conjunction with the second solenoid valve 22 to periodically discharge excess sludge, preventing tank blockage and ensuring sedimentation effect. The drain pipe 15 at the bottom right works in conjunction with the first solenoid valve 16 to facilitate precise control of the discharge of treated clean water and flexible operation. The support legs 4 around the bottom of the workbench 1 are reinforced with anti-slip texture to enhance overall stability and prevent vibration from affecting monitoring accuracy and water flow stability during device operation. The battery 23 in the battery box 3 at the left end supplies power to the motor 7, return pump, sensors and other core components in the event of a sudden power outage, ensuring uninterrupted testing. The toolbox 2 at the right end stores maintenance tools and spare parts in a categorized manner with partitions for easy and quick repair. The display 18 on the top can intuitively display the monitoring data of the COD sensor 14 and dissolved oxygen sensor 20.
[0021] The working principle of this utility model is as follows: During use, the wastewater to be treated enters the anaerobic tank 5 through the inlet pipe 6 at the top of the anaerobic tank 5. The PLC controller 17 at the top of the workbench 1 starts the motors 7 at the top of the anaerobic tank 5 and the anoxic tank 8, driving the stirring rod 19 to rotate, so that the mud and water in the tank are mixed evenly. The wastewater in the anaerobic tank 5 flows by gravity to the anoxic tank 8 through the first connecting pipe 11. The COD sensor 14 in the inlet pipe 6 and the first connecting pipe 11 monitors the pollutant concentration in real time, and the data is transmitted to the display 18. The wastewater in the anoxic tank 8 flows by gravity to the aerobic tank 9 through the second connecting pipe 13. At the same time, the first mud and water return pump 1... 2. The sludge at the bottom of the anoxic tank 8 is returned to the anaerobic tank 5; the wastewater in the aerobic tank 9 flows by gravity to the secondary sedimentation tank 10 through the third connecting pipe 24, and the second sludge return pump 25 returns the sludge at the bottom of the aerobic tank 9 to the anaerobic tank 5. The dissolved oxygen sensor 20 in each tank monitors the dissolved oxygen concentration, and the PLC controller 17 adjusts the reaction conditions according to the monitoring data; the sludge in the secondary sedimentation tank 10 is allowed to settle, and the supernatant is discharged through the drain pipe 15 and the first solenoid valve 16. The third sludge return pump 26 returns the bottom sludge to the anaerobic tank 5, and the excess sludge is periodically discharged through the sewage outlet 21 and the second solenoid valve 22.
[0022] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0023] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0024] Finally, it should be noted that 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. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A pilot-scale biochemical system, comprising a workbench (1), characterized in that: The top of the workbench (1) is equipped with an anaerobic tank (5), an anoxic tank (8), an aerobic tank (9), and a secondary sedimentation tank (10) from left to right. An inlet pipe (6) is fixedly connected to the left end of the top of the anaerobic tank (5). A first sludge return pump (12) is fixedly connected to the top of the anoxic tank (8). The suction port of the first sludge return pump (12) is fixedly connected to the lower part of the inner cavity of the anoxic tank (8) via a pipe. The outlet of the first sludge return pump (12) is fixedly connected to the top of the anaerobic tank (5) via a pipe. The top of the aerobic tank (9)... A second sludge return pump (25) is fixedly connected. The suction port of the second sludge return pump (25) is fixedly connected to the lower part of the inner cavity of the aerobic tank (9) through a pipe. The outlet of the second sludge return pump (25) is fixedly connected to the anaerobic tank (5) through a pipe. A third sludge return pump (26) is fixedly connected to the top of the secondary sedimentation tank (10). The suction port of the third sludge return pump (26) is fixedly connected to the lower part of the inner cavity of the secondary sedimentation tank (10) through a pipe. The outlet of the third sludge return pump (26) is fixedly connected to the anaerobic tank (5) through a pipe. A first connecting pipe (11) is fixedly connected to the upper right side of the anaerobic tank (5). The other end of the first connecting pipe (11) is fixedly connected to the lower left side of the inner cavity of the anoxic tank (8). A second connecting pipe (13) is fixedly connected to the upper right side of the anoxic tank (8). The other end of the second connecting pipe (13) is fixedly connected to the lower left side of the inner cavity of the aerobic tank (9). A third connecting pipe (24) is fixedly connected to the upper right side of the aerobic tank (9). The other end of the third connecting pipe (24) is fixedly connected to the top of the inner cavity of the secondary sedimentation tank (10). A COD sensor (14) is fixedly connected to the inner cavity of the inlet pipe (6), the first connecting pipe (11), the second connecting pipe (13) and the third connecting pipe (24). A dissolved oxygen sensor (20) is installed in the inner cavity of the anaerobic tank (5), the anoxic tank (8) and the aerobic tank (9). A motor (7) is fixedly connected to the top of the anaerobic tank (5) and the anoxic tank (8). A stirring rod (19) is rotatably connected to the top of the inner cavity of the anaerobic tank (5) and the anoxic tank (8) through a bearing. The output shaft of the motor (7) is fixedly connected to the stirring rod (19).
2. The pilot-scale biochemical system according to claim 1, characterized in that: The bottom of the inner cavity of the secondary sedimentation tank (10) is provided with a sewage outlet (21), and a second solenoid valve (22) is fixedly connected to the inner cavity of the sewage outlet (21).
3. The pilot-scale biochemical system according to claim 1, characterized in that: A drain pipe (15) is fixedly connected to the bottom right side of the inner cavity of the secondary sedimentation tank (10), and a first solenoid valve (16) is installed in the inner cavity of the drain pipe (15).
4. The pilot-scale biochemical system according to claim 1, characterized in that: Support legs (4) are installed around the bottom of the workbench (1). The bottom of the support legs (4) is provided with anti-slip texture. A battery box (3) is fixedly connected to the left end of the bottom of the workbench (1). A storage battery (23) is fixedly connected to the inner cavity of the battery box (3).
5. The pilot-scale biochemical system according to claim 1, characterized in that: A toolbox (2) is fixedly connected to the right end of the bottom of the workbench (1), and a partition is fixedly connected to the inner cavity of the toolbox (2).
6. The pilot-scale apparatus for a biochemical system according to claim 1, characterized in that: A display (18) is fixedly connected to the top of the workbench (1), and the input terminal of the display (18) is electrically connected to the output terminals of the COD sensor (14) and the dissolved oxygen sensor (20).
7. The pilot-scale biochemical system according to claim 1, characterized in that: A PLC controller (17) is fixedly connected to the top of the workbench (1). The output terminal of the PLC controller (17) is electrically connected to the input terminals of the motor (7), the first solenoid valve (16), the second solenoid valve (22), the second mud and water return pump (25), and the third mud and water return pump (26). The input terminal of the PLC controller (17) is electrically connected to the output terminals of the COD sensor (14) and the dissolved oxygen sensor (20).