Wastewater treatment system

By designing an inclined car wash platform and a multi-stage filtration mechanism, combined with flocculant treatment, the problem of debris clogging in car wash wastewater was solved, achieving efficient wastewater collection and purification, ensuring stable system operation and water quality optimization.

CN223823457UActive Publication Date: 2026-01-23CENSTAR SCI & TECH CORP LTD
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Patent Information

Application Number
CN202423065895.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2026-01-23
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

In existing car wash wastewater treatment devices, mud, sand, large particles and other debris can easily clog the sewage pump, affecting the normal operation and service life of the system. At the same time, the treated water has an odor and is not completely collected.

Method used

Design a wastewater treatment system including a car wash platform and a primary filtration mechanism. The platform's bearing surface is inclined, and the water collection tank is equipped with a filter grid and barrier steps. Combined with flocculant treatment, multi-stage filtration components, and backwashing components, the system ensures efficient filtration and recycling of wastewater.

Benefits of technology

It effectively filters out large particles, avoids pump blockage, improves wastewater collection efficiency, ensures stable system operation, and reduces odor in water through multi-stage filtration and flocculation treatment, achieving high-cleanliness water recovery.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a wastewater treatment system, relates to the technical field of car washing equipment, and aims to optimize the wastewater treatment system to a certain extent and reduce the problem that the whole system cannot work normally due to the fact that sundries enter a sewage collection tank to block a sewage pump. The utility model provides a wastewater treatment system. The wastewater treatment system comprises a car washing platform and a primary filtering mechanism, the bearing face of the car washing platform is arranged in a gradient mode, and the bearing face inclines downwards from the two sides to the center. A liquid leakage part is formed in the center of the bearing surface, a water collecting groove is formed in the bottom of the car washing platform, the liquid leakage part is communicated with the water collecting groove, the bottom of the water collecting groove is obliquely arranged, the bottom of the water collecting groove inclines from one end to the other end in the length direction, and the gradient ratio of the bottom surface of the water collecting groove to the horizontal plane is 1% + / -0.5; the first-stage filtering mechanism is arranged in the length direction of the water collecting tank, and a water outlet is formed in the lowest point of the water collecting tank and used for discharging water filtered by the first-stage filtering mechanism.
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Description

Technical Field

[0001] This utility model relates to the field of car wash equipment technology, and in particular to a wastewater treatment system. Background Technology

[0002] With the increasing number of cars on the road, automatic car washes have become more widespread. Each car wash consumes an average of 100-150 liters of water, a significant drain on water resources. Therefore, car washes typically require wastewater treatment systems.

[0003] Common car wash wastewater treatment devices typically include a wastewater collection tank below the car wash machine. Wastewater from the car wash flows directly into the collection tank, where it is pumped by a wastewater pump into a water treatment device for further treatment. The treated water is then recycled.

[0004] Existing car wash wastewater treatment devices often result in mud, large particles, leaves, or plastic bags generated during car washing entering the wastewater collection tank, clogging the wastewater pump and affecting its normal operation and lifespan. Large particles can also affect the normal operation and lifespan of the wastewater treatment device, and the treated water has an odor. Furthermore, car wash wastewater cannot be completely collected during the collection process.

[0005] Therefore, there is an urgent need to provide a wastewater treatment system to address the problems existing in the current technology to some extent. Utility Model Content

[0006] The purpose of this utility model is to provide a wastewater treatment system that can, to a certain extent, solve the problem of optimizing the wastewater treatment system, reducing the entry of debris into the sewage collection tank and clogging the sewage pump, which would cause the entire system to malfunction.

[0007] This utility model provides a wastewater treatment system, including a car wash platform and a primary filtration mechanism. The bearing surface of the car wash platform is sloped, and the bearing surface slopes downward from both sides towards the center, with the slope ratio of the bearing surface to the horizontal plane being 1% ± 0.5%. A leakage section is formed at the center of the bearing surface, and a water collection trough is formed at the bottom of the car wash platform. The leakage section is connected to the water collection trough, and the bottom of the water collection trough is sloped from one end to the other along its length, with the slope ratio of the bottom surface of the water collection trough to the horizontal plane being 1% ± 0.5%. The primary filtration mechanism is arranged along the length of the water collection trough, and an outlet is formed at the lowest point of the water collection trough for discharging the water filtered by the primary filtration mechanism.

[0008] The primary filtration mechanism includes a first filter grid and a second filter grid, which are spaced apart along the length of the water collection tank.

[0009] Specifically, the primary filtration mechanism includes multiple barrier steps, which are disposed at the bottom of the water collection tank and spaced apart along the length of the water collection tank.

[0010] Furthermore, the wastewater treatment system provided by this utility model also includes a pipeline filter component, which is provided corresponding to the water outlet.

[0011] The wastewater treatment system provided by this utility model further includes a connecting component, a second filtration mechanism, and a supporting mechanism. One end of the connecting component is connected to the water outlet, and the other end is connected to the second filtration mechanism. The drainage end of the second filtration mechanism is connected to the supporting mechanism.

[0012] Specifically, the connecting component includes a guide pipe and a sedimentation tank. One end of the guide pipe is connected to the outlet, and the other end is connected to the inlet of the sedimentation tank. The outlet of the sedimentation tank is connected to the second filtration mechanism.

[0013] Furthermore, the wastewater treatment system provided by this utility model also includes a flocculant mechanism, which includes a dosing pump and a dosing pipe. One end of the dosing pipe is connected to the dosing pump, and the other end is connected to the sedimentation tank.

[0014] Furthermore, the second filtration mechanism includes a booster pump body, a coarse filter component, a fine filter component, an activated carbon filter component, a security filter component, and a precision filter component; one end of the booster pump body is connected to the sedimentation tank, and the other end is connected to the coarse filter component; the coarse filter component, fine filter component, activated carbon filter component, security filter component, and precision filter component are arranged in sequence, and the drain end of the precision filter component is connected to the support mechanism.

[0015] The supporting structure includes a greywater tank, a water supply pump, and a backwashing assembly. The backwashing assembly includes a backwashing pump body, a first backwashing pipe, a second backwashing pipe, a third backwashing pipe, a first return pipe, a second return pipe, a third return pipe, a main return pipe, a first one-way valve, a second one-way valve, and a third one-way valve. The first one-way valve is correspondingly disposed on the first return pipe, which connects the coarse filter component and the main return pipe. The second one-way valve is correspondingly disposed on the second return pipe, which connects the fine filter component and the main return pipe. The third one-way valve is correspondingly disposed on the third return pipe, which connects the activated carbon filter component and the main return pipe. The main return pipe is connected to the sedimentation tank.

[0016] Specifically, the coarse filter component has a first control valve at its inlet end and the activated carbon filter component has a second control valve at its outlet end.

[0017] Compared with existing technologies, the wastewater treatment system provided by this utility model has the following advantages:

[0018] The wastewater treatment system provided by this utility model includes a car wash platform and a primary filtration mechanism. The bearing surface of the car wash platform is sloped, and the bearing surface slopes downward from both sides towards the center, with the slope ratio of the bearing surface to the horizontal plane being 1% ± 0.5%. A leakage section is formed at the center of the bearing surface, and a water collection trough is formed at the bottom of the car wash platform. The leakage section is connected to the water collection trough, and the bottom of the water collection trough is sloped from one end to the other along its length, with the slope ratio of the bottom surface of the water collection trough to the horizontal plane being 1% ± 0.5%. The primary filtration mechanism is arranged along the length of the water collection trough, and an outlet is formed at the lowest point of the water collection trough for discharging the water filtered by the primary filtration mechanism.

[0019] Analysis shows that the car wash platform can carry vehicles to be washed. Since the carrying surface of the car wash platform in this application is sloped and tilts downward from both sides to the center, the slope ratio of the carrying surface to the horizontal plane is 1% ± 0.5%. Therefore, the slope can be used to concentrate the wastewater dripping on the carrying surface to the central area.

[0020] Since a leakage section is formed at the center of the bearing surface in this application, and a water collection tank is formed at the bottom of the car wash platform, and the leakage section is connected to the water collection tank, the wastewater reaching the leakage section can enter the water collection tank, thereby increasing the wastewater collection volume.

[0021] Accordingly, since the bottom of the water collection tank in this application is also inclined, the bottom of the water collection tank is inclined from one end to the other in the length direction, and the slope ratio of the bottom surface of the water collection tank to the horizontal plane is 1% ± 0.5%, the wastewater falling from the leakage part can further flow and converge to the lowest point of the water collection tank.

[0022] In this application, the water collection tank is equipped with a primary filtration mechanism, which is arranged along the length of the water collection tank. Therefore, as the wastewater flows from high point to low point in the water collection tank, it can be filtered by the primary filtration mechanism, thereby filtering out leaves, mud, plastic bags and other large particles and other debris. This ensures the cleanliness of the wastewater flowing into the outlet and avoids the problem of a large amount of large particles or mud and other debris entering and causing pump blockage and damage, which would affect the stability and service life of the overall system. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the car wash platform in the wastewater treatment system provided in this embodiment of the utility model;

[0025] Figure 2 A schematic diagram of the overall structure of the wastewater treatment system provided in this embodiment of the utility model.

[0026] In the diagram: 1-Car wash platform; 101-Bearing surface; 102-Leakage section; 103-Water collection tank; 104-Outlet; 2-First filter screen; 3-Second filter screen; 4-Barrier stage; 5-Guide pipe; 6-Sedimentation tank; 7-Injection pipe; 8-Injection pump; 9-Flocculant tank; 10-Lift pump body; 11-Coarse filter component; 12-Fine filter component; 13-Activated carbon filter component; 14-Security filter component; 15-Precision filter. Filter components; 16-Backwash pump body; 17-First backwash pipe; 18-Second backwash pipe; 19-Third backwash pipe; 20-First return pipe; 21-Second return pipe; 22-Third return pipe; 23-Main return pipe; 24-First check valve; 25-Second check valve; 26-Third check valve; 27-First control valve; 28-Second control valve; 29-Middle water tank; 30-Water supply pump; 31-Control components; 32-Pipeline filter components. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0028] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing the 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 the utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" 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.

[0031] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0032] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device during use or operation.

[0033] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0034] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0035] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0036] like Figure 1 As shown, this utility model provides a wastewater treatment system, including a car wash platform 1 and a primary filtration mechanism. The bearing surface 101 of the car wash platform 1 is sloped, and the bearing surface 101 slopes downward from both sides towards the center. The slope ratio of the bearing surface 101 to the horizontal plane is 1% ± 0.5%. A leakage part 102 is formed in the center of the bearing surface 101. A water collection tank 103 is formed at the bottom of the car wash platform 1. The leakage part 102 is connected to the water collection tank 103. The bottom of the water collection tank 103 is sloped, and the bottom of the water collection tank 103 slopes from one end to the other in the length direction. The slope ratio of the bottom surface of the water collection tank 103 to the horizontal plane is 1% ± 0.5%. The primary filtration mechanism is arranged along the length direction of the water collection tank 103, and an outlet 104 is formed at the lowest point of the water collection tank 103 for discharging the water filtered by the primary filtration mechanism.

[0037] Compared with existing technologies, the wastewater treatment system provided by this utility model has the following advantages:

[0038] The wastewater treatment system provided by this utility model can carry vehicles to be cleaned through the car wash platform 1. Since the bearing surface 101 of the car wash platform 1 in this application is set with a slope and the bearing surface 101 is inclined downward from both sides towards the center, the slope ratio of the bearing surface 101 to the horizontal plane is 1% ± 0.5%. Therefore, the wastewater dripping on the bearing surface 101 can be concentrated and collected in the central area by utilizing the formed slope.

[0039] Since a leakage section 102 is formed at the center of the bearing surface 101 in this application, and a water collection tank 103 is formed at the bottom of the car wash platform 1, and the leakage section 102 is connected to the water collection tank 103, the wastewater reaching the leakage section 102 can enter the water collection tank 103, thereby increasing the amount of wastewater collected.

[0040] Accordingly, since the bottom of the water collection tank 103 in this application is also inclined, the bottom of the water collection tank 103 is inclined from one end to the other in the length direction, and the slope ratio of the bottom surface of the water collection tank 103 to the horizontal surface is 1% ± 0.5%, the wastewater falling from the leakage part 102 can further flow and converge to the lowest point of the water collection tank 103.

[0041] In this application, the water collection tank 103 is equipped with a primary filtration mechanism, which is arranged along the length of the water collection tank 103. Therefore, as the wastewater flows from high point to low point in the water collection tank 103, it can be filtered by the primary filtration mechanism, thereby filtering out debris such as leaves, mud, plastic bags and other large particles. This ensures the cleanliness of the wastewater flowing into the outlet 104 and avoids the problem of a large amount of large particles or mud entering and causing pump blockage and damage, which would affect the stability and service life of the overall system.

[0042] Optionally, such as Figure 1 As shown, the primary filtration mechanism in this application includes a first filter grid 2 and a second filter grid 3, which are spaced apart along the length of the water collection tank 103.

[0043] In this application, the first filter grid 2 is a coarse filter grid, and the second filter grid 3 is a fine filter grid. The first filter grid 2 can filter larger particles of debris, and correspondingly, the second filter grid 3 filters smaller particles of debris. Therefore, in this application, the first filter grid 2 and the second filter grid 3 are arranged sequentially from high to low along the length direction of the bottom of the water collection tank 103.

[0044] To ensure the filtration effect of wastewater, the leakage port of the leakage section 102 is located at the high point of the bottom of the water collection tank 103, so that the wastewater passing through the leakage section 102 can flow from high to low and achieve the filtration effect during the flow.

[0045] Optionally, such as Figure 1As shown, the primary filtration mechanism in this application includes multiple barrier stages 4, which are disposed at the bottom of the water collection tank 103 and spaced apart along the length of the water collection tank 103.

[0046] This application uses multiple barrier stages 4 set at the bottom of the water collection tank 103 to block the sediment and other debris carried by the wastewater during the flow process. This, together with the fine and coarse filter screens mentioned above, achieves primary filtration of the wastewater and prevents large particles, sediment, plastic bags, etc. from entering the downward filtration stage.

[0047] Preferably, the wastewater treatment system provided by this utility model further includes a pipeline filter component 32, which is provided corresponding to the outlet 104.

[0048] In this application, the pipeline filter component 32 is correspondingly installed at the outlet 104 to filter the wastewater that finally enters the outlet 104 again, thereby improving the cleanliness of the wastewater flowing into the next stage to a certain extent and ensuring the stable use and life of the pump body 10.

[0049] Optionally, such as Figure 2 As shown, the wastewater treatment system provided by this utility model also includes a connecting component, a second filtration mechanism, and a supporting mechanism. One end of the connecting component is connected to the outlet 104, and the other end is connected to the second filtration mechanism. The drain end of the second filtration mechanism is connected to the supporting mechanism.

[0050] Wastewater discharged from outlet 104 enters the second filtration mechanism through the connecting component for further fine filtration. The water filtered by the second filtration mechanism is stored in the carrying mechanism and provides water supply for the car wash process, realizing the recycling, filtration and supply of wastewater.

[0051] Optionally, such as Figure 2 As shown, the connecting components in this application include a guide pipe 5 and a sedimentation tank 6. One end of the guide pipe 5 is connected to the outlet 104, and the other end is connected to the inlet of the sedimentation tank 6. The outlet of the sedimentation tank 6 is connected to the second filtration mechanism.

[0052] In this application, the sedimentation tank 6 is used to hold the wastewater after it has been filtered by the primary filtration mechanism, while the guide pipe 5 is used to connect the water outlet 104 of the car wash platform 1 and the sedimentation tank 6 to realize the discharge of wastewater.

[0053] Preferably, such as Figure 2 As shown, the wastewater treatment system provided by this utility model also includes a flocculant mechanism, which includes a filling pump 8 and a filling pipe 7. One end of the filling pipe 7 is connected to the filling pump 8, and the other end is connected to the sedimentation tank 6.

[0054] In sedimentation tank 6, the addition of flocculant can cause the fine particles in the wastewater to coagulate into flocculent sediment, thereby achieving further filtration of the wastewater and ensuring the quality of the wastewater entering the second filtration unit.

[0055] It is understood that the flocculant mechanism in this application includes a dosing pump 8 and a dosing pipe 7, and further includes a flocculant tank 9 for carrying flocculant. The dosing pump 8 can extract the flocculant in the flocculant tank 9 and inject it into the sedimentation tank 6 through the dosing pipe 7 to achieve the addition of flocculant.

[0056] Preferably, the wastewater treatment system in this application includes a control component 31, which is communicatively connected to the injection pump 8, thereby enabling control over the start and stop of the injection pump 8. In this application, the injection pump 8 can be a metering pump, thereby enabling control over the injection amount.

[0057] Optionally, such as Figure 2 As shown, the second filtration mechanism in this application includes a booster pump body 10, a coarse filter component 11, a fine filter component 12, an activated carbon filter component 13, a security filter component 14, and a precision filter component 15. One end of the booster pump body 10 is connected to the sedimentation tank 6, and the other end is connected to the coarse filter component 11. The coarse filter component 11, the fine filter component 12, the activated carbon filter component 13, the security filter component 14, and the precision filter component 15 are arranged in sequence, and the drain end of the precision filter component 15 is connected to the support mechanism.

[0058] By raising the pump body 10, wastewater can enter the coarse filter component 11 from the sedimentation tank 6, and then flow through the coarse filter component 11, fine filter component 12, activated carbon filter component 13, security filter component 14 and precision filter component 15 in sequence, thereby achieving wastewater filtration.

[0059] In this application, the coarse filter component 11 is a quartz coarse sand filter component, and the fine filter component 12 is a quartz fine sand filter component. The filter components arranged in sequence can achieve fine filtration of wastewater, ensuring that the cleanliness of the water entering the secondary water tank 29 meets the requirements for car washing.

[0060] Optionally, such as Figure 2As shown, the supporting structure in this application includes a water tank 29, a water supply pump 30, and a backwashing assembly; the backwashing assembly includes a backwashing pump body 16, a first backwashing pipe 17, a second backwashing pipe 18, a third backwashing pipe 19, a first return pipe 20, a second return pipe 21, a third return pipe 22, a main return pipe 23, a first one-way valve 24, a second one-way valve 25, and a third one-way valve 26; the first one-way valve 24 is correspondingly disposed on the first return pipe 20, which connects the coarse filter component 11 and the main return pipe 23; the second one-way valve 25 is correspondingly disposed on the second return pipe 21, which connects the fine filter component 12 and the main return pipe 23; the third one-way valve 26 is correspondingly disposed on the third return pipe 22, which connects the activated carbon filter component 13 and the main return pipe 23; and the main return pipe 23 is connected to the sedimentation tank 6.

[0061] After a certain period of filtration, especially the coarse filter element 11, fine filter element 12 and activated carbon filter element 13 mentioned above, the filter media becomes contaminated or deposited, and the activated carbon filter media reaches a certain adsorption saturation. The filter media contains a large number of impurities and pollutants, which will lead to a decrease in the treatment effect. Therefore, backwashing is required to clean the filter media in order to restore the treatment effect.

[0062] This application, by installing a backwash pump body 16 in the medium water tank 29 and utilizing the first backwash pipe 17, the second backwash pipe 18 and the third backwash pipe 19, can realize the backwashing of clean water source in the medium water tank 29 to the coarse filter component 11, the fine filter component 12 or the activated carbon filter component 13 in a positive pressure manner through the backwash pump body 16.

[0063] Preferably, the coarse filter component 11, fine filter component 12 and activated carbon filter component 13 in this application all include a valve body structure that can control the on and off states. The valve body structure can be a two-way solenoid valve. When filtration or backwashing is required, the two-way solenoid valve can be used to achieve different liquid flow directions, thereby achieving backwashing of the filter media inside the three components and achieving the process of self-cleaning of the filter media.

[0064] It is understood that during the backwashing stage, the coarse filter element 11, fine filter element 12, or activated carbon filter element 13 are backwashed one by one. Therefore, this application can achieve the cleaning of the filter elements one by one by the first one-way valve 24 connected to the first return pipe 20, the second one-way valve 25 connected to the second return pipe 21, and the third one-way valve 26 connected to the third return pipe 22.

[0065] Accordingly, such as Figure 2 As shown, the coarse filter component 11 in this application is provided with a first control valve 27 at its inlet end, and the activated carbon filter component 13 is provided with a second control valve 28 at its outlet end.

[0066] When backwashing is required, taking the backwashing of the coarse filter element 11 as an example, the first control valve 27 is closed, the backwash pump body 16 is turned on, and the valve structures in the fine filter element 12 and the activated carbon filter element 13 are closed, so that the water in the medium water tank 29 enters the coarse filter element 11 through the first backwash pipe 17. The bidirectional solenoid valve in the coarse filter element 11 changes the water flow direction, thereby cleaning a single filter element. Furthermore, since the first return pipe 20, the second return pipe 21, and the third return pipe 22 in this application are equipped with check valves, it is possible to prevent the wastewater after backwashing from flowing into other filter elements.

[0067] Similarly, when it is necessary to clean the fine filter element 12 or the activated carbon filter element 13, the other two filter elements are turned off to achieve the backwashing purpose of a single filter element.

[0068] It should be added here that, such as Figure 2 As shown, in this application, the booster pump 10, backwash pump 16, filling pump 8, first control valve 27, coarse filter component 11, fine filter component 12 and activated carbon filter component 13 are all communicatively connected to the control component 31, thereby enabling automatic control of start-up, shutdown and output direction change.

[0069] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wastewater treatment system, characterized in that, Including the car wash platform and primary filtration system; The load-bearing surface of the car wash platform is sloped, and the load-bearing surface slopes downward from both sides toward the center. The slope ratio of the load-bearing surface to the horizontal plane is 1% ± 0.5%. A leakage section is formed at the center of the bearing surface, and a water collection trough is formed at the bottom of the car wash platform. The leakage section is connected to the water collection trough. The bottom of the water collection trough is inclined, and the bottom of the water collection trough is inclined from one end to the other in the length direction. The slope ratio of the bottom surface of the water collection trough to the horizontal plane is 1% ± 0.5%. The primary filtration mechanism is arranged along the length of the water collection tank, and an outlet is formed at the lowest point of the water collection tank for discharging the water filtered by the primary filtration mechanism.

2. The wastewater treatment system according to claim 1, characterized in that, The primary filtration mechanism includes a first filter grid and a second filter grid, which are spaced apart along the length of the water collection tank.

3. The wastewater treatment system according to claim 1, characterized in that, The primary filtration mechanism includes multiple barrier stages, which are disposed at the bottom of the water collection tank and spaced apart along the length of the water collection tank.

4. The wastewater treatment system according to claim 1, characterized in that, It also includes a pipe filter component, which is provided corresponding to the water outlet.

5. The wastewater treatment system according to claim 1, characterized in that, It also includes a connecting component, a second filtration mechanism, and a supporting mechanism. One end of the connecting component is connected to the water outlet, and the other end is connected to the second filtration mechanism. The drain end of the second filtration mechanism is connected to the supporting mechanism.

6. The wastewater treatment system according to claim 5, characterized in that, The connecting component includes a guide pipe and a sedimentation tank. One end of the guide pipe is connected to the outlet, and the other end is connected to the inlet of the sedimentation tank. The outlet of the sedimentation tank is connected to the second filtration mechanism.

7. The wastewater treatment system according to claim 6, characterized in that, It also includes a flocculant mechanism, which includes a dosing pump and a dosing pipe. One end of the dosing pipe is connected to the dosing pump, and the other end is connected to the sedimentation tank.

8. The wastewater treatment system according to claim 6, characterized in that, The second filtration mechanism includes a booster pump, a coarse filtration component, a fine filtration component, an activated carbon filtration component, a security filtration component, and a precision filtration component; One end of the booster pump is connected to the sedimentation tank, and the other end is connected to the coarse filter component. The coarse filter component, fine filter component, activated carbon filter component, security filter component, and precision filter component are arranged in sequence, and the drain end of the precision filter component is connected to the support mechanism.

9. The wastewater treatment system according to claim 8, characterized in that, The supporting structure includes a medium-water tank, a water supply pump, and a backwashing assembly; The backwash assembly includes a backwash pump body, a first backwash pipe, a second backwash pipe, a third backwash pipe, a first return pipe, a second return pipe, a third return pipe, a main return pipe, a first check valve, a second check valve, and a third check valve; The first one-way valve is correspondingly installed on the first reflux pipe, which connects the coarse filter component and the main reflux pipe. The second one-way valve is correspondingly installed on the second reflux pipe, which connects the fine filter component and the main reflux pipe. The third one-way valve is correspondingly installed on the third reflux pipe, which connects the activated carbon filter component and the main reflux pipe. The main reflux pipe is connected to the sedimentation tank.

10. The wastewater treatment system according to claim 8, characterized in that, The coarse filter component has a first control valve at its inlet end and the activated carbon filter component has a second control valve at its outlet end.