A dynamic multi-stage deep treatment system for textile fabric printing and dyeing wastewater

Abstract

The application discloses a kind of textile fabric printing and dyeing wastewater dynamic multistage depth processing system, and the application relates to wastewater treatment technical field, including reaction tank and control module, the sidewall of the reaction tank is provided with aeration assembly, the aeration assembly includes several vice gas pipes arranged in the lower side of reaction tank interior, several aeration holes are formed in the vice gas pipe for gas supply to reaction tank interior, the upper side of the reaction tank is provided with partition assembly, the partition assembly includes partition plate, the partition plate is used to partition the water body in reaction tank, the partition plate can be moved and lifted in the reaction tank, and the directional transfer of water body on both sides of the partition is realized by water pump, so that the effective reaction zone volume of the reaction tank can be dynamically reconstructed according to the actual water inflow, the water body is concentrated and the aeration assembly in the waterless area is closed under small water condition, so as to improve the effective utilization rate of unit aeration gas, and has the advantages of dynamic adjustment of effective reaction process and overall treatment efficiency.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a dynamic multi-stage deep treatment system for textile dyeing and printing wastewater. Background Technology

[0002] Textile dyeing and printing wastewater typically has the characteristics of large fluctuations in water volume, high concentration of organic pollutants, deep color, poor biodegradability, and high content of suspended solids and colloids. In actual production, affected by order switching, batch production and cleaning processes, wastewater often exhibits unstable discharge characteristics of alternating small water volume with high concentration and large water volume with medium and low concentration. In order to ensure compliance with discharge standards, existing treatment processes usually adopt a multi-stage treatment method that combines biological treatment with sedimentation, filtration and other deep treatment units. However, most existing textile dyeing and printing wastewater treatment systems use fixed-volume, fixed-configuration biological reaction tanks and sedimentation tanks. Their design parameters are usually determined based on peak flow rate or maximum load, which often leads to the following problems: First, the aeration zone cannot be adjusted synchronously with the effective reaction water body, resulting in some aeration zones operating without load and serious energy waste; second, the sludge-water separation is incomplete during the sedimentation stage, which easily leads to the discharge of supernatant carrying sludge, increasing the load on subsequent deep treatment; third, the mixing efficiency of residual sludge and new wastewater is low, and when sludge is added back or replaced, the microbial distribution is uneven and the adaptation period is long, affecting the continuous operation capability of the system. Due to the lack of refined control over the water distribution within the reaction tank, it is difficult to dynamically adjust the effective reaction process and overall treatment efficiency. Usually, only extensive control can be achieved through overall water inflow and outflow or external recirculation. As a result, under conditions of frequent water volume changes, it is difficult to balance treatment efficiency, energy consumption control, and effluent stability, thus restricting further improvement in the overall treatment efficiency and operational economy of the system. Summary of the Invention

[0003] The purpose of this invention is to provide a dynamic multi-stage deep treatment system for textile dyeing and printing wastewater to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a dynamic multi-stage deep treatment system for textile dyeing and printing wastewater, including a reaction tank and a control module, wherein an aeration component is provided on the side wall of the reaction tank. The aeration assembly includes several auxiliary air pipes arranged inside the lower side of the reaction tank, and several aeration holes are opened on the auxiliary air pipes for supplying air into the reaction tank. A partition assembly is provided on the upper side of the reaction tank. The partition assembly includes a partition plate, which is used to isolate the water inside the reaction tank. A drainage assembly is provided on the left side of the reaction tank. The drainage assembly includes a turntable and a drain pipe on the turntable. The drain pipe is used to drain water from the reaction tank, and the turntable is used to adjust the height of the drain pipe. A water inlet pipe is provided on the right side of the reaction tank, and the water inlet pipe is used to supply water to the inside of the reaction tank; Two liquid level sensing modules are provided on the rear side of the inner wall of the reaction tank, and the two liquid level sensing modules are respectively located on the left side and the right side of the reaction tank.

[0005] According to the above technical solution, the front end of the auxiliary gas pipe extends from the upper part of the reaction tank to the outside of the reaction tank. The front end of the auxiliary gas pipe is fixedly connected to the main gas pipe. The interior of the main gas pipe is connected to the interior of the auxiliary gas pipe. An electric valve is provided at the connection between the auxiliary gas pipe and the main gas pipe. The electric valve is electrically connected to the control module.

[0006] According to the above technical solution, the electric valve is used to open and close the connection between the auxiliary gas pipe and the main gas pipe. Several auxiliary gas pipes are arranged in parallel inside the reaction tank, and the distance between two adjacent auxiliary gas pipes is greater than the left and right width of the partition plate.

[0007] According to the above technical solution, the partition assembly includes a track, the lower side of which is fixedly connected to the upper surface of the reaction tank. A bracket is provided on the upper side of the reaction tank. Rollers are rotatably connected to the front and rear sides of the bracket via bearings. The rollers are located on the upper side of the track. A moving motor is fixedly connected to the left side of the outer wall of the bracket. The output end of the moving motor is connected to one side of the roller via a transmission belt. A lifting motor is fixedly connected to the middle of the left side of the bracket. A threaded rod is fixedly connected to the output end of the lifting motor. The partition plate is slidably connected to the right side of the bracket, and the inner wall of the upper end of the partition plate is threadedly connected to the outer wall of the threaded rod.

[0008] According to the above technical solution, both the moving motor and the lifting motor are electrically connected to the control module. The moving motor is used to drive the partition plate to move left and right relative to the reaction tank, and the lifting motor is used to drive the partition plate to move up and down.

[0009] According to the above technical solution, a water pump is fixedly connected to the upper right side of the partition plate, a water supply pipe is fixedly connected to the output end of the water pump, the end of the water supply pipe away from the water pump is connected to the left side of the partition plate, a water pumping pipe is fixedly connected to the input end of the water pump, a water pumping box is fixedly connected to the lower end of the water pumping pipe, the water pumping box is fixedly connected to the lower outer wall of the right side of the partition plate, the water pump is electrically connected to the control module, and the water pump is used to input water from the right side of the partition plate to the left side of the partition plate.

[0010] According to the above technical solution, a turbidity detection module is provided at the lower part of the partition plate. The detection end of the turbidity detection module is located on the left side of the partition plate, and the turbidity detection module is used to detect the turbidity of the water body. The turbidity detection module is electrically connected to the control module.

[0011] According to the above technical solution, the drainage component includes a sealing plate, a cleaning port is provided on the lower left side of the reaction tank, the sealing plate is located outside the cleaning port and is slidably connected to the outer wall of the reaction tank, the turntable is located on the upper side of the sealing plate, the outer wall of the turntable is rotatably connected to the inner wall of the reaction tank, the drainage pipe passes through the left and right sides of the turntable, a rotating motor is fixedly connected to the left side of the outer wall of the reaction tank, and the output end of the rotating motor is connected to the outer wall of the turntable through a friction block.

[0012] According to the above technical solution, the control module includes: The signal acquisition module is used to receive the water level signal and water quality signal output by the liquid level detection module and the turbidity detection module. The logic control module is used to generate corresponding control commands based on the water level signal and the water quality signal; The execution drive module is used to control the electric valve in the aeration assembly, the moving motor and lifting motor in the isolation assembly, the water pump, and the rotating motor in the drainage assembly according to the control instructions. The mode switching module is used to switch between biochemical reaction mode, sedimentation separation mode, drainage mode and sludge homogenization mode, and to call the corresponding control logic in different operating modes. The parameter setting module is used to set the liquid level threshold, turbidity threshold, aeration time, and the action sequence parameters of the actuators.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are: By installing partitions that can move and rise and fall inside the reaction tank, and combining this with the directional transfer of water on both sides of the partitions by water pumps, the effective reaction zone volume of the reaction tank can be dynamically reconfigured according to the actual influent volume. Under low water volume conditions, the water is concentrated and the aeration components in the waterless zone are shut off, thereby improving the effective utilization rate of the unit aeration volume and avoiding the energy waste problem caused by the fixed volume reaction tank when operating at low load.

[0014] By setting up a collaborative control structure with partition plates and turbidity detection modules, the water after the biochemical reaction is completed can undergo centralized sedimentation and zoned clarification in the same reaction tank. After the turbidity of the clarified water meets the threshold condition, it is discharged in layers, realizing the effective separation of sediment and clarified liquid, reducing the situation of sludge entrainment in the effluent, and reducing the treatment load of subsequent advanced treatment units.

[0015] By incorporating adjustable-height drainage components and rotatable, downward-moving drainage pipes, the reaction tank can preferentially discharge the relatively clear upper layer of water during the drainage process. Furthermore, as the drainage height gradually decreases, it avoids the large-scale removal of bottom sediments, thereby improving the accuracy of mud-water separation and enhancing the stability of the effluent under different water volume and quality conditions.

[0016] By installing a partition plate that can move back and forth in the water, after the replacement or replenishment of biochemical sludge and the introduction of new wastewater into the reaction tank, the water body is forcibly disturbed by the pushing action of the partition plate, so as to achieve rapid crushing and uniform dispersion of sludge, rapid mixing of new and old water with microorganisms, shortening the adaptation and reproduction cycle of microorganisms, and improving the overall biochemical treatment efficiency under continuous operation conditions. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the structure on the right side of the present invention; Figure 3 This is a schematic diagram of the aeration component structure of the present invention; Figure 4 This is a schematic diagram of the drainage component structure of the present invention; Figure 5 This is a schematic diagram of the left side structure of the partition component of the present invention; Figure 6 This is a schematic diagram of the right side structure of the partition component of the present invention; In the diagram: 1. Reaction tank; 2. Aeration assembly; 3. Isolation assembly; 4. Drainage assembly; 5. Inlet pipe; 6. Liquid level detection module; 201. Main air pipe; 202. Auxiliary air pipe; 203. Electric valve; 301. Track; 302. Support; 303. Roller; 304. Moving motor; 305. Transmission belt; 306. Lifting motor; 307. Threaded rod; 308. Isolation plate; 309. Water pump; 310. Pumping pipe; 311. Pumping box; 312. Water delivery pipe; 313. Turbidity detection module; 401. Sealing plate; 402. Turntable; 403. Drainage pipe; 404. Rotating motor; 405. Friction block. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figure 1-6 In this embodiment, the system is in the biochemical treatment stage. The reaction tank 1 continuously or intermittently inputs textile dyeing wastewater into the tank through the water inlet pipe 5 set on the right side, and adds biochemical sludge into the reaction tank 1 as a microbial reaction medium. The aeration component 2 set at the bottom of the reaction tank 1 is started, and air is continuously supplied to the water body through several parallel auxiliary air pipes 202 and their aeration holes. An external air supply machine supplies air to the main air pipe 201. The main air pipe 201 is used to supply air to each auxiliary air pipe 202. Each auxiliary air pipe 202 is equipped with an electric valve 203 at the connection between it and the main air pipe 201. The electric valve 203 is electrically connected to the control module to realize zoned aeration control. During the reaction, the liquid level detection module 6 monitors the water level inside the reaction tank 1 in real time. When it detects that the current batch of water is low, the control module controls the moving motor 304 and the lifting motor 306 in the partition assembly 3 to work together. The moving motor 304 drives the transmission belt 305 to rotate the roller 303, thereby moving the support 302. The lifting motor 306 drives the threaded rod 307 to rotate, causing the partition plate 308 to descend. This causes the partition plate 308 to move along the track 301 to the left side of the reaction tank 1. The control module drives the moving motor 304 to move the partition plate 308 between the two adjacent auxiliary gas pipes 202, and then moves it below the water surface to contact the lower side of the inner wall of the reaction tank 1. The lower side and the front and rear sides of the partition plate 308 can be covered with rubber material during application, so that the partition plate 308 can be moved into the reaction tank 1. Afterwards, its front, back, and bottom sides are in close contact with the inner wall of the reaction tank 1, thus dividing the interior of the reaction tank 1 into two independent spaces, left and right. Then, the water pump 309 located on the right side of the partition plate 308 is started, and the water on the right side is continuously pumped to the left area through the water pumping pipe 310, water pumping box 311, and water delivery pipe 312, so that the water depth in the left area increases and the effective reaction area decreases. After the water is redistributed, the control module closes the electric valve 203 of the corresponding auxiliary air pipe 202 in the waterless area on the right, and only keeps the auxiliary air pipe 202 in the water area on the left to operate, so that the aeration energy is concentrated on the effective reaction area. After the reaction is completed, the aeration is stopped and the system enters a static state. During the process, the control module controls the electric valve 203 located on the right side of the partition plate 308 in the aeration component 2 to open and close in a timely manner according to the position of the partition plate 308. Through the above process, the effective reaction zone is dynamically reduced under low water volume conditions, enabling the concentrated use of aeration gas, improving the oxygen utilization efficiency per unit gas, reducing overall energy consumption, optimizing the microbial biochemical reaction environment, accelerating microbial reproduction, and creating favorable conditions for the subsequent sedimentation process.

[0020] Example 2: Please refer to Figure 1-6 Based on Example 1, in this example, after the biochemical reaction is completed, the partition plate 308 of the reaction tank 1 is kept in a leftward and sinking state. A concentrated reaction and sedimentation area is formed on the left side of the reaction tank 1. The water undergoes solid-liquid separation under static conditions. The sediment and biochemical sludge gradually settle at the bottom of the left side. At this time, the turbidity detection module 313 set at the bottom of the partition plate 308 detects the turbidity of the lower layer of the water on the left side in real time. When the turbidity of the lower layer reaches the set sedimentation completion threshold, the control module controls the lifting motor 306 to drive in the opposite direction, so that the partition plate 308 is slowly lifted. A flow gap is formed between the lower edge of the partition plate 308 and the bottom of the tank, so that the sediment on the left side flows slowly to the right side under the action of water. When the turbidity detection module 313 detects that the turbidity of the water on the left side has dropped to the clarification threshold, it means that most of the sediment has flowed to the right side. The control module then controls the partition plate 308 to move down and reset, so that the left area forms a clarified wastewater zone. Subsequently, the clarified wastewater on the left side is discharged through the drainage component 4. The rotating motor 404 drives the turntable 402 to rotate, and the position adjustment of the drainage pipe 403 is used to achieve controlled drainage. The sediment and enriched sludge are retained in the right area. When new dyeing wastewater is input into the reaction tank 1 through the inlet pipe 5, the new water impacts the residual water in the reaction tank 1 and first mixes with the sediment and sludge on the right side to achieve rapid reuse of sludge. During this process, the control module receives the water level signal and water quality signal output by the liquid level detection module 6 and the turbidity detection module 313, and generates control commands based on the preset liquid level threshold, turbidity threshold and control logic, thereby causing the movement motor 304 and lifting motor 306 in the partition component 3, the water pump 309 and the rotating motor 404 in the drainage component 4 to operate. This embodiment achieves integrated operation of biochemical reaction, sedimentation separation and sludge reuse, avoiding the problem of uneven microbial distribution caused by the re-addition of sludge in traditional processes. At the same time, the mixing of new and old water bodies helps to improve the adaptability of microorganisms to the new wastewater and their early reproduction rate, thereby enhancing the stability of system operation.

[0021] Example 3: Please refer to Figure 1-6Based on Embodiments 1 and 2, in this embodiment, when the liquid level detection module 6 detects that the water volume in the reaction tank 1 is large and the isolation operation mode is not required, the partition plate 308 remains in a raised state and does not separate the interior of the reaction tank 1. After the biochemical reaction is completed, the control module drives the moving motor 304 to move the partition plate 308 between two adjacent auxiliary gas pipes 202. Then, the control module drives the lifting motor 306 to move the partition plate 308 up and down, so that the turbidity detection module 313 can perform layer-by-layer turbidity detection on the water layers at different heights in the reaction tank 1 to determine the vertical stratification of the water. After confirming that the turbidity of the upper water layer meets the discharge requirements, the control module drives the... Rotate motor 404 to rotate turntable 402 and adjust drain pipe 403 to the highest position of turntable 402. Then turn on drain assembly 4 to drain water. During the drainage process, control module slowly drives turntable 402 to rotate continuously, so that drain pipe 403 gradually moves down during the drainage process, thereby prioritizing the discharge of the relatively clear water in the upper layer and reducing the discharge of sediment in the lower layer with the water flow. When it is necessary to replace the sediment and sludge in reaction tank 1, open the cleaning port located at the lower left side of reaction tank 1 and pull sealing plate 401 to discharge the sediment. At the same time, use turbidity detection module 313 to monitor the quality of the discharged water. After confirming that the sediment has been discharged, close sealing plate 401. This embodiment achieves effective separation and discharge of clarified liquid and precipitate, reduces the probability of precipitate entering subsequent deep treatment units, lowers the back-end treatment load, and ensures the controllability of the internal cleaning process of the reaction tank and the stability of water quality.

[0022] Example 4: Please refer to Figure 1-6 Based on Embodiments 1, 2, and 3, the present invention provides the following technical solution: In this embodiment, after the sediment is discharged from the reaction tank 1 and new biochemical sludge is added, new textile dyeing wastewater is introduced into the reaction tank 1 through the inlet pipe 5. Then, the control module controls the lifting motor 306 to move the partition plate 308 to the middle of the water body. After half of the lower side of the partition plate 308 is submerged in the water body, the moving motor 304 is started, and the roller 303 is driven to roll along the track 301 through the transmission belt 305, so that the partition plate 308 moves back and forth inside the reaction tank 1. During the movement, the partition plate 308 exerts a pushing effect on the water body, forming a strong local disturbance and shear force, which breaks up the aggregated sludge and mixes it thoroughly with the water body. After the disturbance is completed, the moving motor 304 is stopped and the partition plate 308 is reset to the non-working position, and then the normal aeration biochemical treatment process begins. This embodiment utilizes the partition plate 308 as a dynamic disturbance component, enabling rapid homogenization of sludge without additional stirring equipment. This avoids localized sludge enrichment or stratification, facilitating uniform subsequent biochemical reactions and improving overall treatment efficiency.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 process, method, article, or apparatus.

[0024] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dynamic multi-stage deep treatment system for textile dyeing and printing wastewater, characterized in that: The reaction tank (1) has an inlet pipe (5) on one side of its sidewall for inputting textile dyeing wastewater into the reaction tank, and a drainage component (4) on the other side for controlled discharge of water into the reaction tank (1). A partition assembly (3) is disposed in the reaction tank (1) and includes a partition plate (308). The partition plate (308) can move and rise and fall under the action of the drive unit, and is used to dynamically separate or connect two independent spaces in the reaction tank (1). The aeration component (2) is located at the bottom of the reaction tank (1) and has multiple aeration zones that can be opened and closed independently, for supplying aeration gas to the separated effective reaction areas. The control module is electrically connected to the liquid level sensing module (6), the turbidity detection module (313), the drive unit, the aeration assembly (2), and the drainage assembly (4), respectively. The control module determines the current water volume condition based on the water level signal fed back by the liquid level sensing module (6), and controls the movement and lifting of the partition plate (308) accordingly to form a dynamic reaction zone in the reaction tank (1) that is adapted to the current water volume. During the biochemical treatment stage, the aeration component (2) is controlled to aerate only the aeration zones in the dynamic reaction zone. After the biochemical aeration treatment stage, based on the water quality signal fed back by the turbidity detection module (313), the lifting of the partition plate (308) is controlled to guide the migration of sediment, and the drainage component (4) is controlled to perform stratified drainage operation.

2. The dynamic multi-stage deep treatment system for textile dyeing and printing wastewater according to claim 1, characterized in that: The drive unit includes a horizontal drive mechanism for driving the partition plate (308) to move horizontally along the length of the reaction tank (1), and a lifting drive mechanism for driving the partition plate (308) to rise and fall vertically.

3. The dynamic multi-stage deep treatment system for textile fabric dyeing and printing wastewater according to claim 2, characterized in that: The horizontal drive mechanism includes a track (301) disposed on the upper edge of the reaction tank (1), a support (302) capable of moving along the track (301), a roller (303) rollingly engaged with the track (301), and a moving motor (304) driving the roller (303). The lifting drive mechanism includes a lifting motor (306) fixed on the horizontal drive mechanism and a threaded rod (307) driven by the lifting motor (306). The upper part of the partition plate (308) is threadedly connected to the threaded rod (307). The roller (303), the moving motor (304), and the lifting motor (306) are mounted on the bracket (302).

4. A dynamic multi-stage deep treatment system for textile fabric dyeing and printing wastewater according to claim 2 or 3, characterized in that: A water pump (309) is installed on the partition plate (308). The water inlet of the water pump (309) is located on one side of the partition plate (308), and the water outlet is located on the other side of the partition plate (308). It is used to pump water from one side of the partition plate (308) to the other side after the partition plate (308) has been divided.

5. The dynamic multi-stage deep treatment system for textile fabric dyeing and printing wastewater according to claim 4, characterized in that: The turbidity detection module (313) is located at the lower part of the partition plate (308), with its detection end facing the side where the water pump (309) is located, and is used to monitor the turbidity change of the lower water body on that side in real time.

6. A dynamic multi-stage deep treatment system for textile fabric dyeing and printing wastewater according to claim 1 or 5, characterized in that: The aeration assembly (2) includes a main air pipe (201) and multiple auxiliary air pipes (202) arranged in parallel at the bottom of the reaction tank (1). Each auxiliary air pipe (202) has multiple aeration holes, and each auxiliary air pipe (202) is connected to the main air pipe (201) with an electric valve (203) controlled by the control module to form an independent aeration zone.

7. The dynamic multi-stage deep treatment system for textile fabric dyeing and printing wastewater according to claim 6, characterized in that: The distance between two adjacent auxiliary air tubes (202) is greater than the thickness of the partition plate (308).

8. The dynamic multi-stage deep treatment system for textile dyeing and printing wastewater according to claim 1, characterized in that: The drainage assembly (4) includes a turntable (402) located at the drain outlet on the side wall of the reaction tank (1), a drain pipe (403) passing through and fixed on the turntable (402), and a rotary motor (404) that drives the turntable (402) to rotate. The control module adjusts the rotation angle of the turntable (402) by controlling the rotating motor (404), thereby changing the height position of the inlet of the drain pipe (403) for controllable stratified drainage from the surface of the water body to the lower layer.

9. A dynamic multi-stage deep treatment system for textile dyeing and printing wastewater according to claim 8, characterized in that: The lower part of the reaction tank (1) is also provided with a cleaning port, and the cleaning port is provided with an openable and closable sealing plate (401) for discharging the bottom of the reaction tank (1) when it is necessary to replace or centrally discharge sediment and sludge.

10. A dynamic multi-stage deep treatment system for textile fabric dyeing and printing wastewater according to claim 1, characterized in that: The control module includes: The signal acquisition module is used to receive the water level signal and water quality signal output by the liquid level detection module (6) and the turbidity detection module (313); The logic control module is used to generate control commands based on preset liquid level thresholds, turbidity thresholds, and control logic, according to the collected water level and water quality signals. The execution drive module is used to control the electric valve (203) in the aeration assembly (2), the moving motor (304) and lifting motor (306) in the partition assembly (3), the water pump (309), and the rotating motor (404) in the drainage assembly (4) according to the control instructions. The mode switching module is used to switch between biochemical reaction mode, sedimentation separation mode, drainage mode and sludge homogenization mode, and to call the corresponding control logic in different operating modes. The parameter setting module is used to set the liquid level threshold, turbidity threshold, aeration time, and the action sequence parameters of the actuators.

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