SBR (Sequencing Batch Reactor) sewage treatment equipment
By setting up bubble-blocking components and a pre-screening zone in the SBR wastewater treatment unit, the residence time of oxygen bubbles is extended, which solves the problem of low microbial utilization, improves treatment efficiency, reduces energy consumption, and optimizes the treatment process.
Patent Information
- Application Number
- CN202422945394.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-29
AI Technical Summary
The oxygen bubbles in the aeration device of the traditional SBR sewage treatment plant rise quickly, resulting in low oxygen utilization by microorganisms, affecting treatment efficiency and increasing energy consumption.
A bubble-blocking component, including a bubble-blocking plate and an adjustment device, is installed above the aeration components in the treatment zone to extend the residence time of oxygen bubbles in the wastewater and remove large particulate impurities through the pre-screening zone, thereby optimizing the treatment process.
It improves the utilization rate of oxygen by microorganisms, enhances wastewater treatment efficiency, reduces energy consumption, and alleviates the burden on subsequent treatment units through pretreatment.
Smart Images
Figure CN223480920U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of sewage treatment equipment, and in particular relates to an SBR sewage treatment equipment. Background Technology
[0002] SBR (Sequencing Batch Reactor) wastewater treatment equipment is a device that uses the Sequencing Batch Reactor (SBR) process to treat wastewater. This technology is widely used in modern wastewater treatment due to its unique operation and high treatment efficiency. The core of the SBR process is the SBR reactor, where wastewater completes five processes: influent, reaction, sedimentation, effluent discharge, and idle. Through ordered and intermittent operation, it achieves highly efficient wastewater treatment. In existing SBR wastewater treatment devices, the aeration unit is a crucial component. Its function is to introduce air into the treatment tank, providing the microorganisms with the oxygen needed for metabolism, thereby promoting the decomposition of organic matter and the purification of wastewater. However, traditional aeration units have some significant technical limitations. Because the oxygen bubbles generated during aeration rise rapidly, the contact time between the bubbles and microorganisms is short, limiting the microorganisms' oxygen utilization rate. This not only affects wastewater treatment efficiency but also increases energy consumption, as high-power and continuously operating aeration units are required to maintain a sufficient oxygen supply. Utility Model Content
[0003] The purpose of this invention is to address the aforementioned technical problems by providing an SBR wastewater treatment device. By installing a bubble-blocking component above the aeration components in the treatment zone, this design effectively extends the residence time of oxygen-containing bubbles in the wastewater, thereby improving the utilization rate of oxygen by microorganisms.
[0004] In view of this, the present invention provides an SBR wastewater treatment device, including a treatment tank, which includes an outer tank and an inner tank disposed inside for treating wastewater. The inner tank is divided into a pre-screening zone and a treatment zone, which are connected by a pipeline. The pre-screening zone is connected to an inlet pipeline and a pre-screening component is disposed in the pre-screening zone. An aeration component is disposed at the bottom of the treatment zone and a bubble-blocking component is disposed above the aeration component. The bubble-blocking component is connected to the side wall of the treatment tank and can block the bubbles generated by the aeration component, thereby prolonging the residence time of oxygenated bubbles in the wastewater in the treatment tank.
[0005] In this technical solution, by setting a bubble-blocking component above the aeration component in the treatment zone, the design effectively extends the residence time of oxygen-containing bubbles in the wastewater, thereby improving the utilization rate of oxygen by microorganisms. This improvement not only enhances wastewater treatment efficiency but also reduces energy consumption, as it eliminates the need for high-power and continuously operating aeration devices to maintain a sufficient oxygen supply. Furthermore, the separation design between the pre-screening zone and the treatment zone helps optimize the treatment process, ensuring that large particulate impurities in the wastewater are removed in advance, thereby reducing the burden on subsequent treatment units.
[0006] In the above technical solution, there are two sets of bubble-blocking components, symmetrically arranged on the side wall of the treatment area. The bubble-blocking components include a bubble-blocking plate arranged above the aeration device, and the bubble-blocking plate is inclined.
[0007] In the above technical solution, further, several bubble-blocking plates are arranged in an array along the height direction of the processing area, and several flow channels are provided on the bubble-blocking plates.
[0008] In the above technical solution, the flow channels on adjacent bubble-blocking plates on the same side are staggered.
[0009] In this technical solution, the use of bubble-blocking plates effectively blocks the aerobic bubbles generated by the aeration device, extending their residence time within the treatment zone and thus improving the oxygen utilization rate of microorganisms. This improvement not only enhances wastewater treatment efficiency, but the staggered arrangement of multiple bubble-blocking plates and their flow channels further increases the residence time of aerobic bubbles. Furthermore, the inclined arrangement of the bubble-blocking plates prevents the accumulation of suspended activated sludge at the top of the plates during aeration.
[0010] In the above technical solution, furthermore, several bubble-blocking plates in a group are symmetrically connected to both sides with adjustment devices. The adjustment devices include first connecting plates hinged to both ends of the bubble-blocking plates, a first connecting block hinged to one side of the inner wall of the treatment area, a first connecting block hinged to a first connecting seat fixedly provided on the inner wall of the treatment area, another first connecting block hinged to the output end of the telescopic rod, and the telescopic rod hinged to a second connecting seat fixedly provided on the inner wall of the treatment area.
[0011] In this technical solution, a group of bubble-blocking plates are connected by first connecting plates at both ends and are controlled and adjusted by an adjustment device. The angle of the bubble-blocking plates in the entire bubble-blocking assembly can be adjusted synchronously. It can be set in conjunction with the aeration assembly. At the same time, the tilt angle of the bubble-blocking plates can be adjusted to prevent activated sludge from accumulating on the upper side of the bubble-blocking plates.
[0012] In the above technical solution, the pre-screening component is a blocking filter, which can filter out large-sized impurities carried in the sewage.
[0013] In this technical solution, the pretreatment unit is responsible for removing large particulate impurities and floating matter, such as sand and twigs, from the wastewater. This pretreatment reduces the burden on subsequent processing units and improves the overall system's processing efficiency and stability.
[0014] Furthermore, in the above technical solution, a decanter is installed in the treatment tank, and the decanter is connected to an outlet pipe. The decanter can discharge the supernatant and prevent sludge loss. A sludge discharge pipe is installed at the bottom of the treatment area, and the sludge discharge pipe is connected to a sludge discharge pump.
[0015] In the above technical solution, a liquid inlet sampling chamber is further provided between the liquid inlet pipe and the pre-screening area. The liquid inlet sampling chamber and the pre-screening area are abutted together and connected by a liquid inlet valve. The liquid outlet pipe is connected to the liquid outlet sampling chamber, and a liquid outlet valve is provided in the liquid outlet sampling chamber.
[0016] In this technical solution, the setting of inlet and outlet sampling chambers enables sampling and retention during liquid inflow and outflow, facilitating sample testing and analysis, and providing a better understanding of the wastewater treatment effect and system operation status. In addition, the sampling and retention function also helps to quickly identify the problem in case of abnormalities, making it easier to adjust treatment parameters or take necessary emergency measures in a timely manner.
[0017] Furthermore, in the above technical solution, stirring units are arranged diagonally within the processing area.
[0018] In this technical solution, the stirring unit is a submersible motor located at the bottom of the treatment zone. The output end of the submersible motor is connected to stirring blades. The stirring unit can effectively promote the mixing and circulation of wastewater, ensuring that microorganisms are in full contact with oxygen and organic matter in the wastewater, thereby improving the removal efficiency of pollutants.
[0019] In the above technical solution, the aeration component is further connected to an external blower component via an air supply pipe.
[0020] The beneficial effects of the utility model are:
[0021] 1 By installing a bubble-blocking component above the aeration components in the treatment zone, this design effectively extends the residence time of oxygen-containing bubbles in the wastewater, thereby improving the utilization rate of oxygen by microorganisms. This improvement not only enhances wastewater treatment efficiency but also reduces energy consumption because it eliminates the need for high-power and continuously operating aeration devices to maintain a sufficient oxygen supply.
[0022] 2. Several bubble-blocking plates in a group are connected by first connecting plates at both ends and are controlled and adjusted by an adjustment device. The angle of the bubble-blocking plates in the entire bubble-blocking assembly can be adjusted synchronously. It can be set in conjunction with the aeration assembly. At the same time, the tilt angle of the bubble-blocking plates can be adjusted to prevent activated sludge from accumulating on the upper side of the bubble-blocking plates.
[0023] 3. The pre-screening component is a barrier filter. The barrier filter can filter out large impurities carried in the sewage, and is responsible for removing large particles and floating objects such as sand and branches from the sewage. Through pretreatment, the burden on subsequent treatment units can be reduced, and the processing efficiency and stability of the entire system can be improved.
[0024] 4. By setting up inlet and outlet sampling chambers, samples can be taken and stored during liquid inflow and outflow, which facilitates sample testing and analysis, and provides a better understanding of the wastewater treatment effect and system operation status. In addition, the sampling and storage function also helps to quickly identify the problem in case of abnormality, making it easier to adjust the treatment parameters or take necessary emergency measures in a timely manner. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of this utility model;
[0026] Figure 2 It is a simplified sectional view along the length of the processing area;
[0027] Figure 3 It is a simplified sectional view along the width of the processing area;
[0028] Figure 4 This is a schematic diagram of the bubble barrier board.
[0029] The markings in the diagram are as follows:
[0030] 1. Treatment tank; 2. Outer tank; 3. Inner tank; 4. Pre-screening zone; 5. Treatment zone; 6. Inlet pipe; 7. Aeration assembly; 8. Anti-foam assembly; 9. Anti-foam plate; 10. Flow channel; 11. Adjustment device; 12. First connecting plate; 13. First connecting block; 14. First connecting seat; 15. Telescopic rod; 16. Second connecting seat; 17. Barrier filter; 18. Decanter; 19. Outlet pipe; 20. Sludge discharge pipe; 21. Sludge discharge pump; 22. Inlet sampling chamber; 23. Inlet valve; 24. Outlet sampling chamber; 25. Outlet valve; 26. Stirring unit; 27. Air supply pipe; 28. Blower assembly. Detailed Implementation
[0031] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0032] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0033] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0034] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0035] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0036] First embodiment:
[0037] like Figure 1-4 As shown, this embodiment provides an SBR wastewater treatment device, including a treatment tank 1. The treatment tank 1 includes an outer tank 2 and an inner tank 3 set inside for treating wastewater. The inner tank 3 is divided into a pre-screening zone 4 and a treatment zone 5. The pre-screening zone 4 and the treatment zone 5 are connected by a pipe. The pre-screening zone 4 is connected to an inlet pipe and a pre-screening component is installed in the pre-screening zone 4. An aeration component 7 is installed at the bottom of the treatment zone 5. A bubble-blocking component 8 is installed above the aeration component 7 and is connected to the side wall of the treatment tank 1. It can block the bubbles generated by the aeration component 7 and prolong the residence time of oxygenated bubbles in the wastewater in the treatment tank 1.
[0038] By installing a bubble-blocking component 8 above the aeration component 7 in the treatment zone 5, this design effectively extends the residence time of oxygen-containing bubbles in the wastewater, thereby improving the utilization rate of oxygen by microorganisms. This improvement not only enhances wastewater treatment efficiency but also reduces energy consumption, as it eliminates the need for high-power and continuously operating aeration devices to maintain a sufficient oxygen supply. Furthermore, the separation design between the pre-screening zone 4 and the treatment zone 5 helps optimize the treatment process, ensuring that large particulate impurities in the wastewater are removed in advance, thus reducing the burden on subsequent treatment units.
[0039] like Figure 1-4 As shown, there are two sets of bubble-blocking components 8, symmetrically arranged on the sidewall of the treatment zone 5. Each bubble-blocking component 8 includes a bubble-blocking plate 9 positioned above the aeration device, with the bubble-blocking plate 9 inclined. Several bubble-blocking plates 9 are arranged in an array along the height direction of the treatment zone 5, and several flow channels 10 are provided on each bubble-blocking plate 9. The flow channels 10 on adjacent bubble-blocking plates 9 on the same side are staggered.
[0040] By using the bubble-blocking plates 9, the aerobic bubbles generated by the aeration device can be blocked, extending their residence time in the treatment zone 5 and thus improving the utilization rate of oxygen by microorganisms. This improvement not only enhances wastewater treatment efficiency, but the staggered arrangement of multiple bubble-blocking plates 9 and the flow channels 10 on adjacent bubble-blocking plates 9 further increases the residence time of aerobic bubbles. Simultaneously, the inclined arrangement of the bubble-blocking plates 9 prevents the accumulation of suspended activated sludge at the top of the bubble-blocking plates 9 during aeration.
[0041] like Figure 3 As shown, several bubble-blocking plates 9 in a group are symmetrically connected to two sides by adjustment devices 11. The adjustment device 11 includes a first connecting plate 12 hinged to both ends of the bubble-blocking plate 9. A first connecting block 13 is hinged to one side of the first connecting plate 12 on the inner wall of the treatment area 5. The first connecting block 13 is hinged to a first connecting seat 14 fixedly provided on the inner wall of the treatment area 5. Another first connecting block 13 is hinged to the output end of the telescopic rod 15. The telescopic rod 15 is hinged to a second connecting seat 16 fixedly provided on the inner wall of the treatment area.
[0042] A group of bubble-blocking plates 9 are connected by first connecting plates 12 at both ends and are controlled and adjusted by adjusting device 11. The bubble-blocking plates 9 in the whole group bubble assembly can be adjusted synchronously. They can be set in accordance with the aeration assembly 7. At the same time, the tilt angle of the bubble-blocking plates 9 can be adjusted to prevent activated sludge from accumulating on the upper side of the bubble-blocking plates 9.
[0043] like Figure 1 As shown, the pre-screening component is a barrier filter 17, which can filter out large impurities carried in the sewage.
[0044] It is responsible for removing large particles and floating debris, such as sand and twigs, from the wastewater. Pretreatment reduces the burden on subsequent processing units and improves the overall system's efficiency and stability.
[0045] Treatment tank 1 is equipped with a decanter 18, which is connected to an outlet pipe 19. The decanter 18 can discharge the supernatant and prevent sludge loss. Treatment zone 5 is equipped with a sludge discharge pipe 20 at the bottom, which is connected to a sludge discharge pump 21. The decanter 18, sludge discharge pipe 20, and sludge discharge pump 21 are all existing technologies, so they will not be described in detail.
[0046] like Figure 1 As shown, an inlet sampling chamber 22 is provided between the inlet pipe 6 and the pre-screening zone 4. The inlet sampling chamber 22 and the pre-screening zone 4 are abutted together and connected by an inlet valve 23. The outlet pipe 19 is connected to the outlet sampling chamber 24, and an outlet valve 25 is provided in the outlet sampling chamber 24.
[0047] By setting up inlet and outlet sampling chambers 24, samples can be collected and stored during liquid inlet and outlet, which facilitates sample testing and analysis. An inlet sampling chamber 22 is set between the inlet pipe 6 and the pre-screening area 4. The inlet sampling chamber 22 and the pre-screening area 4 are set in abutment and connected by an inlet valve 23. The outlet pipe 19 is connected to the outlet sampling chamber 24, and an outlet valve 25 is set in the outlet sampling chamber 24.
[0048] By setting up inlet and outlet sampling chambers 24, samples can be taken and stored during inlet and outlet processes, and the samples can be tested and analyzed to better understand the effect of wastewater treatment and the operating status of the system. In addition, the sampling and storage function can also help to quickly identify the problem when abnormal situations occur, so as to adjust the treatment parameters in a timely manner or take necessary emergency measures.
[0049] like Figure 1 As shown, stirring units 26 are arranged diagonally within the processing zone 5. The stirring unit 26 is a submersible motor located at the bottom of the processing zone 5, and stirring blades are connected to the output end of the submersible motor.
[0050] The aeration assembly 7 is connected to the external blower assembly 28 via the air supply pipe 27.
[0051] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. An SBR wastewater treatment device, characterized in that, The treatment tank (1) includes an outer tank (2) and an inner tank (3) for treating sewage. The inner tank (3) is divided into a pre-screening zone (4) and a treatment zone (5). The pre-screening zone (4) and the treatment zone (5) are connected by a pipe. The pre-screening zone (4) is connected to an inlet pipe (6). A pre-screening component is installed in the pre-screening zone (4). An aeration component (7) is installed at the bottom of the treatment zone (5). A bubble-blocking component (8) is installed above the aeration component (7). The bubble-blocking component (8) is connected to the side wall of the treatment tank (1) and can block the bubbles generated by the aeration component (7) to prolong the residence time of oxygenated bubbles in the sewage in the treatment tank (1).
2. The SBR wastewater treatment equipment according to claim 1, characterized in that, There are two sets of bubble-blocking components (8), which are symmetrically arranged on the side wall of the treatment area (5). The bubble-blocking components (8) include a bubble-blocking plate (9) arranged above the aeration device, and the bubble-blocking plate (9) is inclined.
3. The SBR wastewater treatment equipment according to claim 2, characterized in that, Several bubble-blocking plates (9) are arranged in an array along the height direction of the processing area (5), and several flow channels (10) are provided on the bubble-blocking plates (9).
4. The SBR wastewater treatment equipment according to claim 3, characterized in that, The flow channels (10) on adjacent bubble-blocking plates (9) on the same side are staggered.
5. The SBR wastewater treatment equipment according to claim 4, characterized in that, A number of bubble-blocking plates (9) in a group are symmetrically connected to an adjustment device (11) on both sides. The adjustment device (11) includes a first connecting plate (12) hinged to both ends of the bubble-blocking plate (9). The first connecting plate (12) on one side of the inner wall of the treatment area (5) is hinged to a first connecting block (13). The first connecting block (13) is hinged to a first connecting seat (14) fixedly installed on the inner wall of the treatment area (5). Another first connecting block (13) is hinged to the output end of the telescopic rod (15). The telescopic rod (15) is hinged to a second connecting seat (16) fixedly installed on the inner wall of the treatment area.
6. The SBR wastewater treatment equipment according to claim 1, characterized in that, The pre-screening component is a barrier filter (17), which can filter out large impurities carried in the sewage.
7. The SBR wastewater treatment equipment according to claim 1, characterized in that, The treatment tank (1) is equipped with a decanter (18), which is connected to an outlet pipe (19). The decanter (18) can discharge the supernatant and prevent sludge loss. The bottom of the treatment area (5) is equipped with a sludge discharge pipe (20), which is connected to a sludge discharge pump (21).
8. The SBR wastewater treatment equipment according to claim 1, characterized in that, A liquid inlet sampling chamber (22) is provided between the liquid inlet pipe (6) and the pre-screening zone (4). The liquid inlet sampling chamber (22) and the pre-screening zone (4) are abutted together and connected by a liquid inlet valve (23). The liquid outlet pipe (19) is connected to the liquid outlet sampling chamber (24). A liquid outlet valve (25) is provided in the liquid outlet pipe (19) within the liquid outlet sampling chamber (24).
9. An SBR wastewater treatment device according to any one of claims 1-8, characterized in that, The processing zone (5) is equipped with stirring units (26) at opposite corners.
10. An SBR wastewater treatment device according to claim 9, characterized in that, The aeration assembly (7) is connected to an external blower assembly (28) via an air supply pipe (27).