Sequencing batch backwater collection system
By integrating pretreatment, recycling tanks and reverse osmosis membrane devices, the sequencing batch reactor (SBR) water collection system enables automated and efficient water saving for small and medium-sized enterprises (SMEs) to reuse wastewater. This solves the problems of high equipment investment, large footprint, and untimely cleaning for SMEs, and improves the system's flexibility and controllability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AQUA WORTH SUZHOU ENVIRONMENTAL PROTECTION
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-24
AI Technical Summary
Small and medium-sized enterprises face challenges in implementing wastewater reuse, including high equipment investment, large land area, high risk of membrane fouling, poor adaptability to water quality fluctuations, untimely cleaning, and the need for manual intervention.
The system employs a sequencing batch reactor (SBR) water collection system, which includes a pretreatment unit, a recovery tank, a reverse osmosis membrane unit, and a cleaning tank. Power is provided by a high-pressure pump, the liquid level is monitored by a level gauge, the cleaning tank enables automated cleaning, and a regulating valve controls the return of concentrate, reducing the number of devices and manual operation.
It reduces installation and maintenance costs for small and medium-sized enterprises, enables automated cleaning, improves the system's adaptability to water quality fluctuations, reduces the risk of membrane fouling, and simplifies the operation process.
Smart Images
Figure CN224548141U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a sequential batch water collection system. Background Technology
[0002] As water scarcity worsens, local regulatory agencies are imposing strict controls on water consumption per 10,000 yuan of industrial added value on industrial enterprises. Small and medium-sized enterprises (SMEs) face difficulties in meeting these standards and a high risk of production shutdowns. While large enterprises can achieve water conservation goals by constructing new wastewater reuse projects, SMEs urgently need integrated equipment that requires minimal investment, occupies little space, and is easy to maintain.
[0003] Current mainstream reverse osmosis (RO) wastewater reuse systems employ a continuous production process with a fixed recovery rate, using a long process with multiple membranes connected in series to achieve a high recovery rate. When fouling occurs, the system needs to be shut down for cleaning. Conventional RO systems often use various sensors, such as pressure and flow rate sensors, to monitor the equipment at individual points, and set alarm points to indicate whether cleaning or replacement of the RO membrane elements is necessary.
[0004] It has the following problems:
[0005] 1) The process is long and uses more membrane elements, resulting in high equipment investment costs and a large footprint; the long process of membrane elements can easily cause uneven membrane flux settings, leading to membrane fouling.
[0006] 2) When water quality fluctuates, the recovery rate cannot be quickly changed through simple settings, and the adjustment range of the recovery rate is limited: usually 40% to 80%;
[0007] 3) Numerous instruments are required, resulting in high investment and operating costs;
[0008] 4) Membrane cleaning requires machine shutdown, cleaning cannot be fully automated, cleaning is time-consuming and labor-intensive, and timely cleaning cannot be achieved. Utility Model Content
[0009] To solve the above-mentioned technical problems, this utility model proposes a sequential batch water collection system.
[0010] To achieve the above objectives, the technical solution of this utility model is as follows:
[0011] This utility model discloses a sequencing batch recycle water collection system, including: a pretreatment device, a recovery tank, a reverse osmosis membrane device, and a cleaning chemical tank;
[0012] The inlet of the pretreatment device is connected to the water source, and its outlet is connected to the inlet of the recycling tank through an inlet pipe. The pretreatment device is used to pretreat the return water entering the recycling tank.
[0013] The outlet of the recovery tank is connected to the inlet of the reverse osmosis membrane unit via a water supply pipe, and a high-pressure pump is installed on the water supply pipe.
[0014] The wastewater end of the reverse osmosis membrane unit is connected to the return water end of the recovery tank through a return water pipe and a cleaning pipe, respectively. A regulating valve is installed on the return water pipe and a cleaning valve is installed on the cleaning pipe.
[0015] The recovery tank is equipped with a level gauge, which is used to monitor the level of the return water in the recovery tank in real time.
[0016] The outlet of the cleaning tank is connected to the inlet of the recovery tank via a delivery pipe, and a dosing pump is installed on the delivery pipe.
[0017] Based on the above technical solution, the following improvements can be made:
[0018] As a preferred option, the outlet of the recycling tank is located at the bottom of the recycling tank.
[0019] As a preferred option, the outlet of the recycling tank is also connected to a drain pipe, and a drain valve is installed on the drain pipe.
[0020] As a preferred embodiment, the pretreatment device includes a filtration device for pretreating greywater by filtration.
[0021] As a preferred option, a cleaning pump is installed on the cleaning pipeline.
[0022] As a preferred option, an annular hollow plate is fixedly installed at the top of the recycling tank;
[0023] The hollow area of the annular hollow plate is connected to the return water pipe;
[0024] The annular hollow plate has an upwardly convex edge in its annular region, forming a hollow cavity. The hollow cavity is connected to the cleaning pipe, and the lower surface of the annular hollow plate has several conical diffusion holes.
[0025] As a preferred embodiment, the outlet of the cleaning tank is connected to the inlet of the recovery tank via a delivery pipe. A particle filter and a dosing pump are sequentially installed along the flow direction of the liquid on the delivery pipe. The slag discharge port of the particle filter is connected to the inlet of the crushing box via a waste slag pipe, and the outlet of the crushing box is connected to the return inlet of the cleaning tank via a return pipe.
[0026] As a preferred embodiment, the cleaning tank is equipped with a stirring device, which includes:
[0027] The bottom impeller assembly, located at the bottom of the cleaning tank, is used to agitate the cleaning solution.
[0028] The central ultrasonic transducer is located in the middle of the cleaning tank and installed on the side wall of the cleaning tank to break up drug particles.
[0029] As a preferred embodiment, the bottom impeller assembly includes: a drive shaft and blades and an annular scraper fixed to the drive shaft, wherein the outer edge of the annular scraper is in clearance fit with the inner wall of the cleaning tank.
[0030] As a preferred embodiment, the edge of the annular scraper is embedded with a flexible sealing strip for scraping away deposits on the side wall of the cleaning tank.
[0031] This utility model discloses a sequential batch reclaimed water collection system, which has the following beneficial effects:
[0032] First, this utility model integrates a pretreatment device, a recovery tank, a reverse osmosis membrane device, and a cleaning chemical tank to form a complete sequencing batch reactor (SBR) water treatment system. It eliminates the need for additional scattered equipment, reduces floor space, lowers installation costs for small and medium-sized enterprises (SMEs), and solves the pain points of limited funds and space for SMEs.
[0033] Secondly, the pretreatment device reduces the damage of raw water pollutants to the reverse osmosis membrane; the high-pressure pump provides power for the reverse osmosis process; the level gauge monitors the liquid level in the recovery tank in real time, providing data support for the sequential batch operation (cycle control of water production and cleaning); the cleaning tank and dosing pump work together to achieve automated cleaning, solving the problem of manual intervention required by traditional equipment.
[0034] Third, the regulating valve in the return water pipeline can flexibly control the proportion of concentrate return to the reverse osmosis membrane unit, reducing the risk of reverse osmosis membrane fouling. The cleaning valve in the cleaning pipeline enables directional circulation of cleaning solution, improving the system's adaptability to water quality fluctuations.
[0035] Fourth, this utility model achieves fully automatic cleaning without adding too many devices and instruments. Attached Figure Description
[0036] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0037] Figure 1 This is one of the schematic diagrams of a batch-type reclaimed water collection system provided in an embodiment of the present invention.
[0038] Figure 2 This is a second schematic diagram of a sequential batch water collection system provided in an embodiment of the present invention.
[0039] Figure 3 The front view of the annular hollow plate provided in the embodiment of this utility model.
[0040] Figure 4An axial sectional view of the annular hollow plate provided in an embodiment of this utility model.
[0041] Figure 5 This is a schematic diagram of the internal structure of the cleaning medicine box provided in an embodiment of the present invention.
[0042] The components are: 1-Pretreatment device, 2-Recovery tank, 3-Reverse osmosis membrane device, 4-Cleaning chemical tank, 51-High pressure pump, 52-Dosing pump, 53-Cleaning pump, 61-Regulating valve, 62-Cleaning valve, 63-Drain valve, 64-Water source valve, 7-Level gauge, 8-Annular hollow plate, 81-Edge, 82-Hollow cavity, 83-Conical diffuser hole, 9-Particle filter, 10-Agitator, 101-Drive shaft, 102-Iron blade, 103-Annular scraper, 104-Flexible sealing strip, 105-Central ultrasonic vibrating plate. Detailed Implementation
[0043] The preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0044] 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.
[0045] The expression “includes” is an “open-ended” expression, which means that there is a corresponding component or step, and should not be interpreted as excluding additional components or steps.
[0046] To achieve the purpose of this utility model, some embodiments of a sequencing batch reclaimed water collection system, such as... Figure 1 As shown, the sequencing batch reactor (SBR) water collection system includes: a pretreatment unit 1, a recovery tank 2, a reverse osmosis membrane unit 3, and a cleaning chemical tank 4.
[0047] The inlet of the pretreatment device 1 is connected to the water source, and its outlet is connected to the inlet of the recycling tank 2 through an inlet pipe. The pretreatment device 1 is used to pretreat the return water entering the recycling tank 2.
[0048] The outlet of the recovery tank 2 is connected to the inlet of the reverse osmosis membrane device 3 through a water supply pipe, and a high-pressure pump 51 is installed on the water supply pipe.
[0049] The wastewater end of the reverse osmosis membrane device 3 is connected to the return water end of the recovery tank 2 through a return water pipe and a cleaning pipe, respectively. A regulating valve 61 is installed on the return water pipe, and a cleaning valve 62 is installed on the cleaning pipe.
[0050] A level gauge 7 is installed on the recovery tank 2. The level gauge 7 is used to monitor the liquid level of the return water in the recovery tank 2 in real time. The level gauge 7 may be, but is not limited to, a continuous level gauge 7.
[0051] The outlet of the cleaning tank 4 is connected to the inlet of the recovery tank 2 via a delivery pipe, and a dosing pump 52 is installed on the delivery pipe.
[0052] Furthermore, the water outlet of the recycling tank 2 is located at the bottom of the recycling tank 2.
[0053] The outlet of the recycling tank 2 is also connected to a drain pipe, and a drain valve 63 is installed on the drain pipe.
[0054] It is worth noting that in some embodiments, the pretreatment device 1 includes a filtration device for pre-treating greywater by filtration.
[0055] The filtration device directly intercepts large particulate impurities such as suspended solids and colloids in the raw water, reducing the risk of fouling of the subsequent reverse osmosis membrane and extending the membrane's service life. Compared with complex pretreatment processes, it is more suitable for the low-cost needs of small and medium-sized enterprises.
[0056] The workflow of this utility model is described below.
[0057] The water production process is as follows:
[0058] 1) Open the water source valve 64 and let the pretreated water from the pretreatment device 1 enter the recovery tank 2. The water is monitored in real time by the continuous level gauge 7. When the level reaches L1, the water supply is stopped.
[0059] 2) The high-pressure pump 51 is turned on to pump the reclaimed water into the reverse osmosis membrane unit to start water production, and the continuous level gauge 7 is used for real-time monitoring.
[0060] When the liquid level drops to L2, the high-pressure pump 51 shuts off, and the batch water production ends.
[0061] 3) Open the drain valve 63 to start drainage, and monitor it in real time through the continuous level gauge 7;
[0062] When the liquid level drops to L3, close the drain valve 63.
[0063] Once one water production cycle is completed, the next cycle will begin automatically according to the set number of cycles.
[0064] When the water production cycle reaches the set number of cycles, the cleaning process begins. The cleaning process is as follows:
[0065] 1) Open the water source valve 64 to allow the pretreated water from the pretreatment device 1 to enter the recovery tank 2. The water is monitored in real time by the continuous level gauge 7. The process stops when the water level reaches L2.
[0066] While water is being introduced, cleaning agents are injected into the recovery tank 2 using the cleaning agent tank 4 and the dosing pump 52.
[0067] 2) Start the high-pressure pump 51 and the cleaning valve 62 and run them for 30 minutes.
[0068] 3) The high-pressure pump 51 stops, the cleaning valve 62 is closed, and the reagent is soaked in the recovery tank 2 for 60 minutes.
[0069] 4) Restart the high-pressure pump 51 and cleaning valve 62 and run for 30 minutes.
[0070] 5) The high-pressure pump 51 stops, the cleaning valve 62 closes, the drain valve 63 is opened to start drainage, and the continuous level gauge 7 is used for real-time monitoring.
[0071] When the liquid level drops to L3, close the drain valve 63.
[0072] After the cleaning step is completed, the system automatically enters the water production step.
[0073] Recovery Rate Setting: By setting a recovery rate value, the height of L2 is automatically calculated, thereby changing the recovery rate. The calculation method is as follows:
[0074] L2 = L1 - recovery rate × (L1 - L3);
[0075] Running data collection records:
[0076] Cumulative water production = (πD) 2 / 4)×(L1-L2)×number of water production cycles;
[0077] Where: D is the diameter of recycling tank 2.
[0078] It is worth noting that in some embodiments, the water production time for each cycle can be recorded. When the water production time exceeds a set value, it indicates that the RO membrane is clogged, and an automatic cleaning process is initiated.
[0079] This invention improves and optimizes reverse osmosis systems for wastewater reuse in small and medium-sized factories. By extending operating time, the number of membrane elements is reduced, saving on equipment costs and maintenance expenses. Sequencing batch operation is automated, avoiding extensive manual labor. Simultaneously, the device offers greater flexibility and controllability, enabling automatic adjustment of the recovery rate based on pretreated water quality monitoring, thus achieving wider applicability.
[0080] This invention has a small overall footprint, an integrated skid-mounted design, and uses fewer instruments to record multiple values, further reducing investment costs. Simultaneously, this invention enables automated cleaning, further reducing manual cleaning costs.
[0081] In addition, this system can be equipped with a touch screen and PLC to achieve fully automatic control. The device recovery rate can be flexibly set according to the water quality to cope with the large fluctuations in wastewater quality of small and medium-sized enterprises.
[0082] To further optimize the implementation effect of this utility model, in some other embodiments, the remaining technical features are the same, the difference being that, for example... Figure 2 As shown, a cleaning pump 53 is installed on the cleaning pipeline.
[0083] This embodiment has the following beneficial effects: the cleaning pipeline is equipped with a cleaning pump 53, which can independently control the circulation pressure and flow rate of the cleaning fluid, avoiding the problem of insufficient cleaning pressure caused by relying on the high-pressure pump 51. It is especially suitable for powerful cleaning when the membrane element is severely fouled, ensuring thorough cleaning.
[0084] Furthermore, an annular hollow plate 8 is fixedly installed on the top of the inside of the recycling tank 2, such as... Figure 3-4 As shown;
[0085] The hollow area of the annular hollow plate 8 is connected to the return water pipe;
[0086] The annular hollow plate 8 has an upwardly protruding edge 81 in its annular region, forming a hollow cavity 82. The hollow cavity 82 is connected to the cleaning pipe, and a number of conical diffusion holes 83 are distributed on the lower surface of the annular hollow plate 8.
[0087] This embodiment has the following beneficial effects: the hollow area of the annular hollow plate 8 is directly connected to the return water pipe, which can concentrate the return water (such as concentrate) of the reverse osmosis membrane device 3 into the recovery tank 2.
[0088] The hollow cavity 82 in the annular area is connected to the cleaning pipe, which can concentrate the cleaning solution into the cavity and then diffuse it evenly into the recovery tank 2 through several conical diffusion holes 83 on the lower surface, ensuring that the cleaning solution can cover all areas inside the tank and avoid local concentrations of the agent being too high or too low.
[0089] The conical through-hole design allows the cleaning solution to be sprayed out in a diffused manner, enhancing the contact efficiency between the cleaning solution and the inner wall of the recovery tank 2 and the water, improving the circulation reaction effect between the cleaning solution and the reverse osmosis membrane unit, and ensuring thorough cleaning.
[0090] The annular hollow plate 8 integrates the return water channel and the cleaning solution distribution function into one unit, eliminating the need for separate return water diversion devices and cleaning solution distribution devices. This saves internal space in the recovery tank 2, meets the "miniaturization" design goal of the device, and reduces the number of components, thereby lowering equipment investment and maintenance costs.
[0091] To further optimize the implementation effect of this utility model, in some other embodiments, the remaining features are the same, except that the outlet of the cleaning tank 4 is connected to the inlet of the recovery tank 2 through a delivery pipe. A particle filter 9 and a dosing pump 52 are sequentially arranged along the flow direction of the liquid on the delivery pipe. The slag discharge port of the particle filter 9 is connected to the inlet of the crushing box through a waste slag pipe, and the outlet of the crushing box is connected to the return inlet of the cleaning tank 4 through a return pipe.
[0092] This embodiment has the following beneficial effects: the particulate filter 9 intercepts solid impurities in the cleaning agent, preventing blockage of the dosing pump 52 or the reverse osmosis membrane channel; the pulverizer pulverizes the waste residue and returns it to the cleaning agent tank 4, realizing the recycling of the agent and reducing the cost of consumables.
[0093] To further optimize the implementation effect of this utility model, in some other embodiments, the remaining technical features are the same, except that a stirring device 10 is installed inside the cleaning tank 4, such as... Figure 5 As shown, the stirring device 10 includes:
[0094] The bottom impeller assembly is located at the bottom of the cleaning tank 4 and is used to stir the cleaning solution;
[0095] The central ultrasonic transducer 105 is located in the middle of the cleaning tank 4 and is installed on the side wall of the cleaning tank 4 for breaking up drug particles.
[0096] This embodiment has the following beneficial effects: the bottom impeller assembly stirs the agent to ensure uniform mixing and avoid precipitation; the middle ultrasonic plate 105 breaks up the drug particles, ensuring a consistent cleaning solution concentration and solving the problem of unstable cleaning effect caused by insufficient dissolution of traditional agents.
[0097] Furthermore, the bottom impeller assembly includes: a drive shaft 101, a blade 102 and an annular scraper 103 fixed on the drive shaft 101, the outer edge of the annular scraper 103 being clearance-fitted with the inner wall of the cleaning tank 4.
[0098] This embodiment has the following beneficial effects: the paddle 102 enhances the stirring intensity, and the annular scraper 103 can scrape off and clean the deposits at the bottom of the medicine tank 4, prevent the medicine from scaling and hardening at the bottom of the tank, reduce the frequency of medicine tank cleaning, and extend the equipment life.
[0099] Furthermore, the edge of the annular scraper 103 is embedded with a flexible sealing strip 104 for scraping away deposits on the side wall of the cleaning tank 4.
[0100] This embodiment has the following beneficial effects: the flexible sealing strip 104 fits tightly against the inner wall of the medicine box, which can thoroughly remove the medicine residues attached to the side wall, avoid microbial growth or medicine crystallization, further ensure the purity of the cleaning solution, and reduce the risk of secondary pollution.
[0101] This utility model discloses a sequential batch reclaimed water collection system, which has the following beneficial effects:
[0102] First, this utility model integrates the pretreatment device 1, the recovery tank 2, the reverse osmosis membrane device 3, and the cleaning chemical tank 4 to form a complete sequencing batch recycle water treatment system. It eliminates the need for additional scattered equipment, reduces the floor space required, lowers the installation costs for small and medium-sized enterprises, and solves the pain points of limited funds and space for small and medium-sized enterprises.
[0103] Second, the pretreatment device 1 reduces the damage of raw water pollutants to the reverse osmosis membrane; the high-pressure pump 51 provides power for the reverse osmosis process; the level gauge 7 monitors the level of the recovery tank 2 in real time, providing data support for the sequential batch operation (cycle control of water production and cleaning); the cleaning tank 4 and the dosing pump 52 work together to achieve automated cleaning, solving the problem of manual intervention required by traditional equipment.
[0104] Third, the regulating valve 61 of the return water pipeline can flexibly control the proportion of concentrate return to the reverse osmosis membrane device 3, reducing the risk of reverse osmosis membrane fouling. The cleaning valve 62 of the cleaning pipeline realizes directional circulation of cleaning solution, improving the system's adaptability to water quality fluctuations.
[0105] Fourth, this utility model achieves fully automatic cleaning without adding too many devices and instruments.
[0106] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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.
[0107] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0108] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.
Claims
1. A sequencing batch reactor (SBR) water collection system, characterized in that, include: Pretreatment unit, recovery tank, reverse osmosis membrane unit, and cleaning chemical tank; The inlet of the pretreatment device is connected to a water source, and its outlet is connected to the inlet of the recycling tank through an inlet pipe. The pretreatment device is used to pretreat the return water entering the recycling tank. The outlet of the recovery tank is connected to the inlet of the reverse osmosis membrane device via a water supply pipe, and a high-pressure pump is installed on the water supply pipe. The wastewater end of the reverse osmosis membrane device is connected to the return water end of the recovery tank through a return water pipe and a cleaning pipe, respectively. A regulating valve is installed on the return water pipe, and a cleaning valve is installed on the cleaning pipe. The recovery tank is equipped with a level gauge, which is used to monitor the level of the return water in the recovery tank in real time. The outlet of the cleaning tank is connected to the inlet of the recovery tank via a delivery pipe, and a dosing pump is installed on the delivery pipe.
2. The sequencing batch reactor (SBR) water collection system according to claim 1, characterized in that, The water outlet of the recycling tank is located at the bottom of the recycling tank.
3. The sequencing batch reactor (SBR) water collection system according to claim 1, characterized in that, The outlet of the recycling tank is also connected to a drain pipe, and a drain valve is installed on the drain pipe.
4. The sequencing batch reactor (SBR) water collection system according to claim 1, characterized in that, The pretreatment device includes a filtration device for pre-treating greywater by filtration.
5. The sequencing batch reactor (SBR) water collection system according to claim 1, characterized in that, A cleaning pump is installed on the cleaning pipeline.
6. The sequencing batch reactor (SBR) water collection system according to claim 1, characterized in that, An annular hollow plate is fixedly installed at the top of the recycling tank; The hollow area of the annular hollow plate is connected to the return water pipe; The annular hollow plate has an upwardly protruding edge in its annular region, forming a hollow cavity. The hollow cavity is connected to the cleaning pipe, and the lower surface of the annular hollow plate has a number of conical diffusion holes.
7. The sequencing batch reactor (SBR) water collection system according to claim 1, characterized in that, The outlet of the cleaning tank is connected to the inlet of the recovery tank via a delivery pipe. A particle filter and a dosing pump are sequentially installed along the flow direction of the liquid on the delivery pipe. The slag outlet of the particle filter is connected to the inlet of the crushing box via a waste slag pipe. The outlet of the crushing box is connected to the return inlet of the cleaning tank via a return pipe.
8. The sequencing batch reactor (SBR) water collection system according to claim 7, characterized in that, The cleaning tank is equipped with a stirring device, which includes: A bottom impeller assembly is located at the bottom of the cleaning tank and is used to stir the cleaning solution. The central ultrasonic transducer plate is located in the middle of the cleaning tank and installed on the side wall of the cleaning tank, and is used to break up drug particles.
9. The sequencing batch reactor (SBR) water collection system according to claim 8, characterized in that, The bottom impeller assembly includes a drive shaft, blades and an annular scraper fixed on the drive shaft, wherein the outer edge of the annular scraper is clearance-fitted with the inner wall of the cleaning tank.
10. The sequencing batch reactor (SBR) water collection system according to claim 9, characterized in that, The edge of the annular scraper is embedded with a flexible sealing strip, which is used to scrape off deposits on the side wall of the medicine tank.