Intelligent adjustable bioreaction device

Abstract

The utility model discloses an intelligent adjustable biological reaction device, including reactor, the inside anaerobic zone, anoxic zone, aerobic zone and post anoxic zone are sequentially arranged along sewage flow direction in reactor, be provided with the first baffle including first water pass hole between anaerobic zone and anoxic zone, be provided with the second baffle including second water pass hole between anoxic zone and aerobic zone, be provided with the third baffle including third water pass hole between aerobic zone and post anoxic zone, wherein, the first baffle and second baffle fixed setting, the third baffle can reciprocating adjustment along sewage flow direction, the device still includes anoxic reflux pump and post anoxic reflux pump, in the utility model, through the adjustable third baffle of configuration, realized the flexible adjustment of aerobic zone and post anoxic zone volume, significantly enhanced the impact load capacity of biological reaction device.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment, and in particular to an intelligent adjustable bioreactor. Background Technology

[0002] With the development of the wastewater treatment industry, the requirements for pollution reduction and carbon reduction are increasing. Existing biological nitrogen and phosphorus removal processes often incorporate a post-anoxic zone to promote simultaneous denitrification and phosphorus removal, leveraging its "dual carbon utilization" advantage. To enhance the effect of simultaneous denitrification and phosphorus removal, one proven method is to incorporate a post-anoxic zone, and the larger the volume of the post-anoxic zone, the better the effect of simultaneous denitrification and phosphorus removal.

[0003] However, this method still has some problems in practical applications. For example, it cannot flexibly adjust the reaction conditions according to the quality of the incoming water. When the water quality is stable, it cannot increase the volume of the post-anoxic zone to fully enhance the effect of simultaneous denitrification and phosphorus removal, resulting in high chemical consumption and aeration energy consumption. When the quality of the incoming water deteriorates, it cannot expand the aerobic tank to prolong the hydraulic retention time of the wastewater in the aerobic tank to promote the oxidation of organic matter and ammonia nitrogen, thereby improving the carbon and nitrogen treatment effect, resulting in substandard effluent.

[0004] Therefore, providing an intelligent adjustable bioreactor is a technical problem that urgently needs to be solved in this field to address the above-mentioned issues. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an intelligent adjustable bioreactor.

[0006] The objective of this utility model is achieved through the following technical solution: In a first aspect, this utility model provides an intelligent adjustable bioreactor, including a reactor, wherein an anaerobic zone, an anoxic zone, an aerobic zone and a post-anoxic zone are sequentially arranged inside the reactor along the direction of sewage flow. A first baffle containing a first water passage hole is provided between the anaerobic zone and the anoxic zone; a second baffle containing a second water passage hole is provided between the anoxic zone and the aerobic zone; and a third baffle containing a third water passage hole is provided between the aerobic zone and the post-anoxic zone. The first and second baffles are fixedly installed, and the third baffle can be adjusted back and forth along the direction of sewage flow. The device also includes an anoxic reflux pump and a post-anoxic reflux pump; the inlet end of the anoxic reflux pump is connected to the bottom end of the anoxic zone, and the outlet end of the anoxic reflux pump is connected to the bottom front end of the anaerobic zone; the inlet end of the post-anoxic reflux pump is connected to the bottom end of the post-anoxic zone, and the outlet end of the post-anoxic reflux pump is connected to the bottom front end of the anoxic zone.

[0007] Furthermore, a stirrer is provided in each of the anaerobic zone, anoxic zone, aerobic zone, and post-anoxic zone.

[0008] Furthermore, the bottom of the anaerobic zone, anoxic zone, aerobic zone, and post-anoxic zone is provided with a grooved aeration disc.

[0009] Furthermore, the first water passage hole is located above the first partition plate, the second water passage hole is located below the second partition plate, and the third water passage hole is located above the third partition plate; The inlet of the anaerobic zone and the outlet of the post-anoxic zone are both located at the bottom of the reactor.

[0010] Furthermore, a guide rail and pulley are provided on the bottom wall of the reactor between the second baffle and the outlet of the post-anoxic zone, and the pulley is connected to the third baffle; the third baffle is equipped with a bidirectional hydraulic piston that is thrust by an external power source.

[0011] Furthermore, the third partition plate is provided with multiple holes that can be electrically opened and closed at the middle position.

[0012] Furthermore, the outer periphery of the third partition plate in contact with the reactor is provided with rubber sealing strips.

[0013] Furthermore, a displacement sensor is also installed inside the third partition.

[0014] Furthermore, water quality sensors are installed in the anaerobic zone, anoxic zone, aerobic zone, and post-anoxic zone.

[0015] The beneficial effects of this utility model are: In an exemplary embodiment of this invention, by configuring an adjustable third partition, the volume of the aerobic zone and the post-anoxic zone can be flexibly adjusted, which significantly enhances the bioreactor's resistance to shock loads. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an intelligent adjustable bioreactor provided in an exemplary embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the first partition and the second partition provided in an exemplary embodiment of the present invention; Figure 3 This is a schematic diagram of the first structure of the third partition provided in an exemplary embodiment of the present invention; Figure 4 This is a schematic diagram of the second structure of the third partition provided in an exemplary embodiment of the present invention; In the diagram, 1-reactor, 2-agitator, 3-aeration disc, 4-first baffle, 5-second baffle, 6-third baffle, 7-first pipeline, 8-second pipeline, 9-anoxic reflux pump, 10-post-anoxic reflux pump, 11-inlet, 12-outlet, 13-guide rail, 14-pulley, 15-first water passage hole, 16-second water passage hole, 17-third water passage hole, 18-perforated, 19-bidirectional hydraulic piston, 20-external power source, 21-rubber sealing strip, 111-anaerobic zone, 112-anoxic zone, 113-aerobic zone, 114-post-anoxic zone. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] In the description of this utility model, it should be noted that the directions or positional relationships indicated by "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer" etc. are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0021] It should be understood that although the terms first, second, third, etc., may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination." Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] See Figure 1 , Figure 1 The diagram shows a schematic of the structure of an intelligent adjustable bioreactor provided in an exemplary embodiment of the present invention, including a reactor 1, wherein an anaerobic zone 111, an anoxic zone 112, an aerobic zone 113 and a post-anoxic zone 114 are arranged sequentially inside the reactor 1 along the direction of sewage flow. A first water passage 15 is provided between the anaerobic zone 111 and the anoxic zone 112 (e.g., Figure 2 As shown), a second water passage 16 is provided between the first partition 4 (in the anoxic zone 112 and the aerobic zone 113) and the anoxic zone 112. Figure 2 The second baffle 5 (as shown) is provided between the aerobic zone 113 and the post-anoxic zone 114, and includes a third water passage 17 (as shown). Figure 3 The third partition 6 (shown) is a partition 4; wherein the first partition 4 and the second partition 5 are fixedly arranged, and the third partition 6 can be adjusted back and forth along the sewage flow direction. The device also includes an anoxic reflux pump 9 and a post-anoxic reflux pump 10; the inlet end of the anoxic reflux pump 9 is connected to the bottom end of the anoxic zone 112, the outlet end of the anoxic reflux pump 9 is connected to the bottom front end of the anaerobic zone 111, and the anoxic reflux pump 9 connects the two zones through the first pipeline 7; the inlet end of the post-anoxic reflux pump 10 is connected to the bottom end of the post-anoxic zone 114, the outlet end of the post-anoxic reflux pump 10 is connected to the bottom front end of the anoxic zone 112, and the post-anoxic reflux pump 10 connects the two zones through the second pipeline 8.

[0024] Specifically, in this exemplary embodiment, wastewater enters the reactor and sequentially passes through an anaerobic zone 111, an anoxic zone 112, an aerobic zone 113, and a post-anoxic zone 114 for denitrification and phosphorus removal. The overall process is as follows: Anaerobic zone 111 converts readily biodegradable macromolecular organic matter into small-molecule volatile fatty acids, while simultaneously achieving anaerobic phosphorus release from wastewater. Anoxic zone 112 performs denitrification, enabling denitrifying polyphosphate-accumulating bacteria to utilize nitrates or nitrites as electron acceptors, reducing nitrates to nitrogen gas under anoxic conditions. Simultaneously, it absorbs dissolved inorganic phosphorus (such as phosphates) from wastewater and stores it as intracellular polyphosphate, thus reducing both carbon source and oxygen consumption. Aerobic zone 113 performs nitrification and aerobic phosphorus uptake processes, using oxygen as an electron acceptor. The acceptor absorbs phosphate, reducing its amount; the post-anoxic zone 114 is used to enhance the simultaneous denitrification phosphorus removal effect. The larger the volume of the post-anoxic zone 114, the better the simultaneous denitrification phosphorus removal effect. Specifically, the mixed liquor from the post-anoxic zone 114 is returned to the anoxic zone 114 via the post-anoxic return pump 10, ensuring that the anoxic zone 114 maintains a sufficiently low oxidation-reduction potential (ORP), providing a suitable growth environment for denitrifying polyphosphate-accumulating bacteria; finally, the anoxic return pump 9 connects the anoxic zone 112 and the anaerobic zone 111, forming an anaerobic-anoxic internal circulation. Throughout the process, wastewater flows through the water passages on the corresponding partitions between the zones.

[0025] Meanwhile, in this exemplary embodiment, the water quality (e.g., COD, NH3-N, NO3) of the wastewater entering at different times is also considered. - -N and PO4³⁻ (which can be determined based on the actual situation) are different, and their corresponding wastewater treatment needs are different: When the influent water quality is stable, the volume of the post-anoxic zone 114 can be increased to fully enhance the effect of simultaneous denitrification and phosphorus removal, and this state can be maintained continuously, thereby reducing chemical consumption and aeration energy consumption; when the influent water quality deteriorates, the aerobic zone 113 can be expanded to prolong the hydraulic retention time of wastewater in the aerobic zone 113 to promote the oxidation of organic matter and ammonia nitrogen, thereby improving the carbon and nitrogen treatment effect, rapidly improving the removal efficiency of carbon and nitrogen pollutants, and ensuring that the effluent water quality meets the standards.

[0026] Therefore, in this exemplary embodiment, the first baffle 4 and the second baffle 5 are fixedly installed, while the third baffle 6 can be adjusted back and forth along the sewage flow direction, thereby making the volumes of the aerobic zone 113 and the post-anoxic zone 114 adjustable to meet the treatment requirements of different sewage qualities. By configuring the adjustable third baffle 6, flexible adjustment of the volume of the aerobic zone 113 and the post-anoxic zone 114 is achieved, significantly enhancing the bioreactor's resistance to shock loads; moreover, the modification process does not require production shutdown for construction, effectively improving biological treatment efficiency within the existing process framework, and possessing good practical value.

[0027] In one specific exemplary embodiment, the initial volume ratio of each region in the intelligent adjustable bioreactor is set as anaerobic zone 111: anoxic zone 112: aerobic zone 113: post-anoxic zone 114 = 1:4:4:1.

[0028] Under stable influent water quality conditions (e.g., the instantaneous influent water quality measured by the water quality sensor is less than or equal to n times the average influent water quality measured over the past 7 days, where n is set according to the actual situation of each wastewater treatment plant; water quality data can include COD, NH3-N, NO3-, etc.),... - -N, PO4³⁻ (select according to actual situation), the first partition 4 and the second partition 5 are fixedly set, and the third partition 6 moves towards the starting point to reduce the volume of the aerobic zone 113 and increase the volume of the post-anoxic zone 114, so that the volume ratio of each zone becomes anaerobic zone 111: anoxic zone 112: aerobic zone 113: post-anoxic zone 114 = 1:4:3:2. This state is maintained for long-term operation to reduce energy consumption and drug consumption. When the influent water quality suddenly deteriorates (for example, the instantaneous influent water quality measured by the water quality sensor is greater than or equal to n times the average influent water quality measured in the past 7 days), the first baffle 4 and the second baffle 5 are fixedly set, and the third baffle 6 moves away from the starting point, reducing the volume of the post-anoxic zone 114 and increasing the volume of the aerobic zone 113, so that the volume ratio is restored to anaerobic zone 111: anoxic zone 112: aerobic zone 113: post-anoxic zone 114 = 1:4:4:1, which quickly improves the removal efficiency of carbon and nitrogen pollutants and ensures that the effluent water quality meets the standards.

[0029] In yet another specific exemplary embodiment, the water quality data is obtained by regulatory personnel through a management terminal, and then the movement of the third partition 6 is manually controlled.

[0030] The following will describe the preferred exemplary embodiments: More preferably, in an exemplary embodiment, such as Figure 1 As shown, a stirrer 2 is provided in each of the anaerobic zone 111, the anoxic zone 112, the aerobic zone 113 and the post-anoxic zone 114.

[0031] Specifically, in this exemplary embodiment, the agitator 2 can promote uniform mixing of return sludge and wastewater and maintain the sludge in suspension, thereby enhancing mass transfer efficiency and improving wastewater treatment effect.

[0032] More preferably, in an exemplary embodiment, such as Figure 1 As shown, the bottom of the anaerobic zone 111, the anoxic zone 112, the aerobic zone 113 and the post-anoxic zone 114 is provided with a grooved aeration disc 3.

[0033] Specifically, in this exemplary embodiment, the grooved aeration disc 3 aerates the reactor 1; at the same time, the aeration disc 3 is grooved so as not to affect the free movement of the third baffle 6.

[0034] In one preferred exemplary embodiment, each aeration disc 3 is equipped with a gravity sensor to prevent the third partition 6 from remaining above the aeration disc 3 during movement and affecting aeration. In yet another preferred exemplary embodiment, the aeration state of the aeration disc 3 can be changed according to the volume changes of the aerobic zone 113 and the post-anoxic zone 114 to meet corresponding requirements.

[0035] More preferably, in an exemplary embodiment, such as Figures 1-3 As shown, the first water passage 15 is located above the first partition 4, the second water passage 16 is located below the second partition 5, and the third water passage 17 is located above the third partition 6. The inlet 11 of the anaerobic zone 111 and the outlet 12 of the post-anoxic zone 114 are both located below the reactor 1.

[0036] Specifically, in this exemplary embodiment, wastewater enters through the inlet 11 of the anaerobic zone 111 and flows in a baffled manner within the intelligent adjustable bioreactor. Finally, the treated wastewater is discharged from the outlet 12 of the post-anoxic zone 114. This baffled arrangement ensures that wastewater flows evenly throughout the entire treatment area, fully utilizing the effective volume of the treatment facility and improving treatment efficiency.

[0037] More preferably, in an exemplary embodiment, a guide rail 13 (such as...) is provided on the bottom wall of the reactor 1 located between the second baffle 5 and the outlet 12 of the post-anoxic zone 114. Figure 1 (as shown) and pulley 14 (as shown) Figure 1 and Figure 4 As shown in the figure, the pulley 14 is connected to the third partition 6; the third partition 6 is provided with a bidirectional hydraulic piston 19 that is provided with thrust by an external power source 20.

[0038] Specifically, in this exemplary embodiment, the third baffle 6 integrates a bidirectional hydraulic piston 19, which is powered by an external power source 20. By applying pressure on one side, the third baffle 6 is directly pushed to move back and forth along the water flow direction under the action of the pulley 14 installed on the guide rail 13, thereby realizing the volume change of the aerobic zone 113 and the post-anoxic zone 114.

[0039] It should be noted that the instantaneous influent water quality collected by the water quality sensor is processed by an external controller or a central server, and the external power source 20 can be controlled by the external controller or the central server; the external power source 20 can also be manually controlled by the management personnel.

[0040] More preferably, in an exemplary embodiment, such as Figure 3 As shown, the third partition 6 also has a multi-hole 18 that is electrically opened and closed at the middle position.

[0041] Specifically, in this exemplary embodiment, a multi-hole 18 with electric opening and closing is provided on the third partition 6 (with an electric valve equipped with a labyrinth seal ring). The multi-hole 18 on the third partition 6 is closed when the reactor 1 is running normally. When the third partition 6 needs to be moved, the multi-hole 18 on the third partition 6 automatically opens to reduce the impact of water pressure on the movement of the third partition 6.

[0042] In another exemplary embodiment, when the influent water quality suddenly deteriorates (for example, the instantaneous influent water quality measured by the water quality sensor is greater than or equal to n times the average influent water quality measured in the past 7 days), the first partition 4 and the second partition 5 are fixedly set, the third partition 6 is not moved, the perforated 18 on the third partition 6 is opened, so that the water in the aerobic zone 113 and the post-anoxic zone 114 are completely mixed, and the whole is transformed into the aerobic zone 113, so that the volume ratio becomes anaerobic zone 111: anoxic zone 112: aerobic zone 113 = 1:4:5, which quickly improves the removal efficiency of carbon and nitrogen pollutants and ensures that the effluent water quality meets the standards.

[0043] More preferably, in an exemplary embodiment, such as Figure 4 As shown, the outer periphery of the third partition 6 that contacts the reactor 1 is provided with rubber sealing strips 21.

[0044] Specifically, in this exemplary embodiment, a rubber sealing strip 21 is provided on the outer periphery (sides and bottom) of the third partition 6 in contact with the reactor 1, thereby reducing liquid leakage between the aerobic zone 113 and the post-anoxic zone 114. Furthermore, the leakage of the guide rail 13 and pulley 14 is minimal and negligible. It should also be noted that since wastewater is transported between the partitions and the reactor through water passages, minor wastewater leakage will not significantly interfere with the overall process efficiency; therefore, a completely sealed state between the zones is not required.

[0045] More preferably, in an exemplary embodiment, a displacement sensor is also provided inside the third partition 6.

[0046] Specifically, in this exemplary embodiment, a displacement sensor is used to collect the moving distance of the third partition 6, thereby enabling precise acquisition and control of the moving distance.

[0047] More preferably, in an exemplary embodiment, water quality sensors are provided in the anaerobic zone 111, the anoxic zone 112, the aerobic zone 113 and the post-anoxic zone 114.

[0048] Specifically, in this exemplary embodiment, water quality sensors in the anaerobic zone 111, anoxic zone 112, aerobic zone 113, and post-anoxic zone 114 are used to monitor the process data of wastewater treatment, so as to keep track of water quality changes in real time and adjust process parameters in a timely manner.

[0049] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An intelligent adjustable bioreactor, characterized in that: The reactor includes an anaerobic zone, an anoxic zone, an aerobic zone, and a post-anoxic zone arranged sequentially inside the reactor along the direction of wastewater flow. A first baffle containing a first water passage hole is provided between the anaerobic zone and the anoxic zone; a second baffle containing a second water passage hole is provided between the anoxic zone and the aerobic zone; and a third baffle containing a third water passage hole is provided between the aerobic zone and the post-anoxic zone. The first and second baffles are fixedly installed, and the third baffle can be adjusted back and forth along the direction of sewage flow. The device also includes an anoxic reflux pump and a post-anoxic reflux pump; the inlet end of the anoxic reflux pump is connected to the bottom end of the anoxic zone, and the outlet end of the anoxic reflux pump is connected to the bottom front end of the anaerobic zone; the inlet end of the post-anoxic reflux pump is connected to the bottom end of the post-anoxic zone, and the outlet end of the post-anoxic reflux pump is connected to the bottom front end of the anoxic zone.

2. The intelligent adjustable bioreactor according to claim 1, characterized in that: Agitators are installed in the anaerobic zone, anoxic zone, aerobic zone, and post-anoxic zone.

3. The intelligent adjustable bioreactor according to claim 1, characterized in that: The bottom of the anaerobic zone, anoxic zone, aerobic zone, and post-anoxic zone is equipped with a grooved aeration disc.

4. The intelligent adjustable bioreactor according to claim 1, characterized in that: The first water passage is located above the first partition, the second water passage is located below the second partition, and the third water passage is located above the third partition. The inlet of the anaerobic zone and the outlet of the post-anoxic zone are both located at the bottom of the reactor.

5. The intelligent adjustable bioreactor according to claim 1, characterized in that: A guide rail and pulley are provided on the bottom wall of the reactor between the second baffle and the outlet of the post-anoxic zone. The pulley is connected to the third baffle. The third baffle is equipped with a bidirectional hydraulic piston that is thrust by an external power source.

6. The intelligent adjustable bioreactor according to claim 1 or 5, characterized in that: The third partition also has multiple holes that can be electrically opened and closed in the middle.

7. The intelligent adjustable bioreactor according to claim 5, characterized in that: The outer periphery of the third partition that contacts the reactor is equipped with a rubber sealing strip.

8. The intelligent adjustable bioreactor according to claim 5, characterized in that: The third partition is also equipped with a displacement sensor.

9. The intelligent adjustable bioreactor according to claim 1, characterized in that: Water quality sensors are installed in the anaerobic zone, anoxic zone, aerobic zone, and post-anoxic zone.

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