Detachable sewage treatment equipment

Abstract

The invention relates to detachable sewage treatment equipment. The equipment comprises a supporting platform; the primary filtering device is used for primarily filtering the sewage; the water storage device is used for receiving the preliminarily filtered water, and the water storage device comprises a water storage barrel wall and a cleaning assembly arranged in the water storage barrel wall; the secondary filtering device is used for carrying out secondary filtering on the water; the liquid supply device is used for uniformly distributing water in the water storage device to the secondary filtering device; the cleaning assembly comprises a first motor fixedly connected to the wall of the water storage barrel, a transmission rod driven by the first motor and provided with a first bevel gear at the end, a fixed connecting rod fixed into the wall of the water storage barrel, and a second bevel gear rotationally arranged through the fixed connecting rod and meshed with the first bevel gear. Compared with the prior art, automatic cleaning is achieved, and the maintenance intensity is reduced; the modular detachable design is adopted, and maintenance is convenient and efficient; a multi-stage composite filtering process is adopted, so that the effluent quality is improved; intelligent liquid supply and anti-blocking design are adopted, so that the operation stability is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a detachable wastewater treatment device. Background Technology

[0002] With the acceleration of industrialization and urbanization, wastewater treatment has become a key link in protecting the environment and achieving sustainable development. The increase in urban population and industrial development has led to a significant rise in wastewater discharge. Domestic sewage and industrial wastewater contain large amounts of pollutants such as organic matter, heavy metals, and pathogens. Direct discharge without treatment will severely damage the aquatic ecosystem and endanger human health. The continuous development of wastewater treatment technology aims to remove pollutants from wastewater through physical, chemical, and biological means to achieve compliant discharge or resource utilization. Its significance lies in: first, protecting water resources and improving the recycling rate of water resources; second, maintaining ecological balance and reducing damage to the aquatic ecosystem; and third, preventing the spread of diseases and ensuring public health safety. Furthermore, innovations in wastewater treatment technology, such as modular and detachable designs, not only improve the flexibility and adaptability of equipment but also reduce construction and operating costs. These technological advancements provide strong support for addressing wastewater treatment needs in different scenarios and promote the green and low-carbon development of the wastewater treatment industry.

[0003] In common wastewater treatment devices, the filter screen or filter material is easily clogged by impurities in the wastewater during use, leading to decreased filtration efficiency and difficulty in cleaning, which seriously increases the labor intensity of users. Secondly, after long-term static water storage, some wastewater treatment devices are prone to the accumulation of dirt on the inner wall of the water storage device, requiring manual disassembly and cleaning, which not only increases labor intensity but may also lead to water waste. Therefore, this invention proposes a detachable wastewater treatment device to solve the problems existing in the prior art.

[0004] CN202510724775.1 discloses an industrial wastewater treatment device and process, belonging to the field of wastewater treatment technology. It includes a wastewater treatment tank and a filter barrel. An inlet pipe is connected through the wastewater treatment tank. A bearing is fitted onto the outer arc surface of the filter barrel, and four extension seats are fixedly connected to the bearing. In this invention, the filter barrel adopts an inclined inner arc surface design. Wastewater moves along the inner arc surface under centrifugal force, extending the contact time between the wastewater and the filter screen, allowing more opportunities for fine particles in the wastewater to be intercepted, thereby improving filtration accuracy and effect. Due to the combined effect of centrifugal force and bidirectional rotational shear force, filter screen clogging is effectively avoided, enabling the device to operate continuously for extended periods. However, the simple transmission method relying mainly on a motor to directly drive the cleaning brush results in a complex structure and high maintenance costs. The cleaning water is sprayed from the outside of the filter barrel inwards, and for clogged filter holes, its cleaning power and effect are not as good as high-pressure backwashing from the inside out. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology by providing a detachable sewage treatment device with automated cleaning to reduce maintenance intensity; modular and detachable design for convenient and efficient maintenance; multi-stage composite filtration process to improve effluent quality; and intelligent liquid supply and anti-clogging design to ensure operational stability.

[0006] The objective of this invention can be achieved through the following technical solutions: This invention provides a detachable wastewater treatment device, comprising: Support platform; A primary filtration device is installed on the support platform for preliminary filtration of wastewater; A water storage device is provided on the support platform and located below the primary filtration device for receiving water after preliminary filtration. The water storage device includes a water storage tank wall and a cleaning component disposed within the water storage tank wall. A secondary filtration device is installed on the support platform and located below the water storage device for secondary filtration of water; A liquid supply device is installed on the support platform and located below the secondary filtration device, used to evenly distribute the water in the water storage device to the secondary filtration device. The cleaning assembly includes a first motor fixedly connected to the wall of a water storage tank, a transmission rod driven by the first motor and having a first bevel gear at its end, a fixed connecting rod fixed inside the wall of the water storage tank, and a second bevel gear rotatably mounted on the fixed connecting rod and meshing with the first bevel gear. The second bevel gear is fixed to a rotating rod, and a cleaning brush that fits against the inner wall of the water storage tank is fixedly connected to the rotating rod. The cleaning brush is fixedly connected to the rotating rod, and a limiting collar is fixedly connected to the fixed connecting rod, the limiting collar being sleeved on the transmission rod.

[0007] Furthermore, four sets of first electric telescopic rods are provided below the wall of the water storage tank for controlling the overall lifting and lowering of the water storage device. Furthermore, the secondary filtration device includes a lower blocking block, a limiting ring above the blocking block, and a second filter support plate above the limiting ring. The top of the secondary filtration device is provided with a retaining ring for connecting to the liquid supply device. Furthermore, the second filter carrier plate is provided with a first-stage filter layer, a second-stage filter layer, a third-stage filter layer and a fourth-stage filter layer from top to bottom. Furthermore, the materials of the primary filter layer, secondary filter layer, tertiary filter layer, and quaternary filter layer are, in order, fine quartz sand, fine anthracite, activated carbon, and rare earth ceramic sand. Furthermore, the liquid supply device includes a liquid supply tank wall and a liquid supply cover plate. A second motor is fixedly connected to the liquid supply cover plate, and a second electric telescopic rod is fixedly connected to the support platform. The second motor is fixedly connected to one end of the second electric telescopic rod, and a rotating leaking plate is fixedly connected to the output end of the second motor. A fixed leaking plate is provided inside the liquid supply tank wall, and both the rotating leaking plate and the fixed leaking plate are provided with through holes that are vertically and vertically corresponding.

[0008] Furthermore, the fixed leakage plate is provided with a limiting block, and the inner wall of the liquid supply tank is provided with a limiting groove that slides and engages with the limiting block. Furthermore, the primary filtration device includes a water storage tank, a first filter support plate disposed in the water storage tank, a first filter screen slidably connected to the first filter support plate, and a first filter cover plate slidably connected to the support platform. An inlet pipe is slidably passed through the first filter cover plate, and one end of the inlet pipe is fixedly connected to the support platform.

[0009] Furthermore, the filter material inside the first filter carrier plate is coarse quartz sand. Furthermore, the liquid supply device is connected to the primary filtration device via a hose equipped with a pneumatic diaphragm pump, and the water storage device is connected to the primary filtration device via a hose.

[0010] Compared with the prior art, the present invention has the following advantages: (1) Automated cleaning reduces maintenance intensity. The equipment integrates a dedicated cleaning device inside the water storage unit. By starting the first motor, the transmission rod and the first bevel gear are driven, which in turn drive the second bevel gear and the rotating rod to rotate, thereby causing the cleaning brush fixed on the rotating rod to automatically scrape and clean the inner wall of the water storage tank. This changes the cumbersome process of manually disassembling and cleaning the water storage tank required by traditional equipment, and realizes regular and automatic dirt cleaning.

[0011] (2) Modular and detachable design for convenient and efficient maintenance. A highly modular and detachable structure is adopted. For example, the first filter screen of the primary filtration unit can be slidably removed from the first filter support plate; the secondary filtration unit can be disassembled via the top retaining ring and handle; the fixed drain plate of the liquid supply unit is slidably engaged through the cooperation of the limiting block and the limiting groove, facilitating removal and cleaning. This makes cleaning and replacement of easily damaged or clogged components such as filter screens and filter materials exceptionally simple and quick. It shortens equipment downtime, improves filtration efficiency, and reduces long-term maintenance costs.

[0012] (3) Multi-stage composite filtration process to improve effluent quality. A two-stage filtration system is installed. The first-stage filtration device intercepts larger particles through a first filter screen and coarse quartz sand filter media. The second-stage filtration device adopts a more refined four-layer filtration structure, consisting of fine quartz sand, fine anthracite, activated carbon, and rare earth ceramic sand. This multi-stage filtration process, from coarse to fine, forms a highly efficient composite filtration barrier. It can remove suspended solids, colloids, dissolved organic matter, odors, and even some heavy metal ions from wastewater step by step, ultimately producing excellent effluent quality that meets higher reuse or discharge standards.

[0013] (4) Intelligent liquid supply and anti-clogging design to ensure operational stability. The liquid supply device includes a rotating leaking plate driven by a second motor and a fixed leaking plate. Both plates have through holes, which are periodically aligned and misaligned by relative rotation. This allows wastewater to drip intermittently and evenly onto the secondary filter layer below, enhancing the dispersion of wastewater and effectively preventing scale buildup on the leaking plate surface or the formation of channels on the filter layer surface due to water flow impact. This ensures the uniformity and stability of the filtration process and improves the overall filtration effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a detachable wastewater treatment device. Figure 2 Exploded view of the primary filtration unit of a detachable wastewater treatment system; Figure 3 A schematic diagram of the water storage device for a detachable wastewater treatment system; Figure 4 This is a schematic diagram of the internal structure of the water storage device in a detachable wastewater treatment system. Figure 5 A partial structural diagram of the cleaning components of a detachable wastewater treatment device; Figure 6 Exploded view of the secondary filtration unit of a detachable wastewater treatment system; Figure 7 A cross-sectional view of the secondary filtration unit of a detachable wastewater treatment system; Figure 8 Exploded view of the liquid supply device for a detachable wastewater treatment system; Figure 9 A schematic diagram of a cleaning brush for a detachable wastewater treatment device; Figure 10 This is a schematic diagram of the layers of the second filter support plate in a detachable wastewater treatment device.

[0015] Reference numerals: 1. Support platform; 2. Primary filtration device; 3. Water storage device; 4. Secondary filtration device; 5. Liquid supply device; 6. Water storage tank; 7. First filter support plate; 8. First filter screen; 9. First filter cover plate; 10. Water storage tank wall; 11. First electric telescopic rod; 12. Cleaning assembly; 13. First motor; 14. Transmission rod; 15. First bevel gear; 16. Fixed connecting rod; 17. Rotating rod; 18. Second bevel gear; 19. Cleaning brush ; 20. Limiting collar; 21. Blocking block; 22. Limiting ring; 23. Second filter support plate; 24. Snap ring; 25. Liquid supply tank wall; 26. Fixed drain plate; 27. Limiting block; 28. Limiting groove; 29. ​​Liquid supply cover plate; 30. Second motor; 31. Rotating drain plate; 32. Second electric telescopic rod; 33. First-stage filter layer; 34. Second-stage filter layer; 35. Third-stage filter layer; 36. Fourth-stage filter layer; 37. Pneumatic diaphragm pump; 38. Liquid inlet pipe. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.

[0017] Example 1 This embodiment provides a detachable sewage treatment device, such as... Figure 1-10 As shown, it includes: Supporting Platform 1; A primary filtration device 2 is installed on the support platform 1 for preliminary filtration of wastewater; A water storage device 3 is installed on the support platform 1 and located below the primary filter device 2. It is used to receive water after preliminary filtration. The water storage device 3 includes a water storage tank wall 10 and a cleaning component 12 disposed in the water storage tank wall 10. A secondary filtration device 4 is installed on the support platform 1 and located below the water storage device 3, for secondary filtration of water; The liquid supply device 5 is installed on the support platform 1 and located below the secondary filtration device 4, and is used to evenly distribute the water in the water storage device 3 to the secondary filtration device 4. The cleaning assembly 12 includes a first motor 13 fixedly connected to the wall of the water storage tank 10, a transmission rod 14 driven by the first motor 13 and having a first bevel gear 15 at its end, a fixed connecting rod 16 fixed inside the water storage tank wall 10, and a second bevel gear 18 rotatably connected to the fixed connecting rod 16 and meshing with the first bevel gear 15. The second bevel gear 18 is fixed to a rotating rod 17, and a cleaning brush 19 that fits against the inner wall of the water storage tank wall 10 is fixedly connected to the rotating rod 17. The cleaning brush 19 is fixedly connected to the rotating rod 17, and a limiting collar 20 is fixedly connected to the fixed connecting rod 16. The limiting collar 20 is sleeved on the transmission rod 14.

[0018] Example 2 This embodiment provides a detachable sewage treatment device, such as... Figure 1-10 As shown, it includes: Supporting Platform 1; A primary filtration device 2 is installed on the support platform 1 for preliminary filtration of wastewater; A water storage device 3 is installed on the support platform 1 and located below the primary filter device 2. It is used to receive water after preliminary filtration. The water storage device 3 includes a water storage tank wall 10 and a cleaning component 12 disposed in the water storage tank wall 10. A secondary filtration device 4 is installed on the support platform 1 and located below the water storage device 3, for secondary filtration of water; The liquid supply device 5 is installed on the support platform 1 and located below the secondary filtration device 4, and is used to evenly distribute the water in the water storage device 3 to the secondary filtration device 4. The cleaning assembly 12 includes a first motor 13 fixedly connected to the wall of the water storage tank 10, a transmission rod 14 driven by the first motor 13 and having a first bevel gear 15 at its end, a fixed connecting rod 16 fixed inside the water storage tank wall 10, and a second bevel gear 18 rotatably connected to the fixed connecting rod 16 and meshing with the first bevel gear 15. The second bevel gear 18 is fixed to a rotating rod 17, and a cleaning brush 19 that fits against the inner wall of the water storage tank wall 10 is fixedly connected to the rotating rod 17. The cleaning brush 19 is fixedly connected to the rotating rod 17, and a limiting collar 20 is fixedly connected to the fixed connecting rod 16. The limiting collar 20 is sleeved on the transmission rod 14.

[0019] In a specific embodiment, four sets of first electric telescopic rods 11 are provided below the water storage tank wall 10 to control the overall lifting and lowering of the water storage device 3. In a specific embodiment, the secondary filtration device 4 includes a lower blocking block 21, a limiting ring 22 above the blocking block 21, and a second filter support plate 23 above the limiting ring 22. The top of the secondary filtration device 4 is provided with a retaining ring 24 for connecting with the liquid supply device 5. In a specific embodiment, the second filter carrier plate 23 is provided with a first-stage filter layer 33, a second-stage filter layer 34, a third-stage filter layer 35 and a fourth-stage filter layer 36 from top to bottom. In a specific embodiment, the materials of the primary filter layer 33, the secondary filter layer 34, the tertiary filter layer 35, and the quaternary filter layer 36 are, in order, fine quartz sand, fine anthracite, activated carbon, and rare earth ceramic sand. In a specific embodiment, the liquid supply device 5 includes a liquid supply tank wall 25 and a liquid supply cover plate 29. A second motor 30 is fixedly connected to the liquid supply cover plate 29. A second electric telescopic rod 32 is fixedly connected to the support platform 1. The second motor 30 is fixedly connected to one end of the second electric telescopic rod 32. A rotating leaking plate 31 is fixedly connected to the output end of the second motor 30. A fixed leaking plate 26 is provided inside the liquid supply tank wall 25. Both the rotating leaking plate 31 and the fixed leaking plate 26 are provided with through holes that are vertically and vertically corresponding.

[0020] In a specific embodiment, the fixed leakage plate 26 is provided with a limiting block 27, and the inner wall of the liquid supply tank wall 25 is provided with a limiting groove 28 that slides and engages with the limiting block 27. In a specific embodiment, the primary filtration device 2 includes a water storage tank 6, a first filter support plate 7 disposed in the water storage tank 6, a first filter screen 8 slidably connected to the first filter support plate 7, and a first filter cover plate 9 slidably connected to the support platform 1. An inlet pipe 38 is slidably passed through the first filter cover plate 9, and one end of the inlet pipe 38 is fixedly connected to the support platform 1.

[0021] In a specific embodiment, the filter material in the first filter carrier plate 7 is coarse quartz sand. In a specific embodiment, the liquid supply device 5 is connected to the primary filter device 2 via a hose equipped with a pneumatic diaphragm pump 37, and the water storage device 3 is connected to the primary filter device 2 via a hose.

[0022] The working principle is as follows: In operation, this equipment first filters the wastewater through the primary filtration device 2. The wastewater is initially transported to the top of the first filter screen 8 via the inlet pipe 38, where it undergoes preliminary solid interception. The wastewater then flows into the first filter support plate 7, where it is filtered by coarse quartz sand to remove larger particles. This completes the first filtration. The wastewater is then transferred to the supply device 5 via a hose and pneumatic diaphragm pump 37 between the water storage device 3 and the supply device 5 for further processing. The pneumatic diaphragm pump 37 transports the wastewater from the water storage tank 6 to the top of the rotating drain plate 31. The second motor 30 is then activated to rotate the drain plate 31, with the rotation direction aligned with the limiting block 27 in the limiting groove 28. The internal assembly direction is consistent to prevent the fixed drain plate 26 from falling off the supply tank wall 25 due to the rotation of the drain plate 31. During the rotation of the drain plate 31, the sewage is transported downwards in stages through the through holes of the same size and position on the drain plate 31 and the fixed drain plate 26, increasing the sewage flow and preventing sedimentation at the bottom of the drain plate 31. At the same time, it is beneficial to evenly drip the sewage onto the next process. After being processed by the supply device 5, the sewage drips evenly onto the second filter support plate 23, and undergoes a second filtration by gravity. First, the fine quartz sand in the first-stage filter layer 33 and the fine anthracite in the second-stage filter layer 34 intercept smaller particles in the sewage. Then, the activated carbon in the third-stage filter layer 35 adsorbs dissolved substances. Organic matter and some inorganic matter are filtered through rare earth ceramic sand in the fourth-stage filtration layer 36 to improve the filtration effect. After the second filtration, the filtered water flows down the slope of the baffle block 21 to the bottom gap and enters the water storage tank wall 10. The filtered water is discharged through the liquid outlet pipe on one side of the bottom of the water storage tank wall 10. This is the entire sewage filtration process. After long-term filtration, the user can slide the first filter cover 9 on the support platform 1 by releasing the positioning pin on the first filter cover 9. This allows the user to easily remove the first filter support plate 7 by pulling the handle inside the first filter screen 8, making it convenient to remove the blocked solids on the first filter screen 8 and replace the material inside the first filter support plate 7, thereby improving the filtration efficiency. The water storage device 3 is lowered by controlling the first electric telescopic rod 11 at the bottom of the water storage device 3. At this time, the user can rotate the handle on the outer layer of the secondary filter device 4 to remove it from the groove on the liquid supply tank wall 25, which facilitates the replacement of the material in the second filter support plate 23. At the same time, the height of the entire liquid supply device 5 can be adjusted by controlling the extension and retraction of the second electric telescopic rod 32. By pushing the fixed leak plate 26 from bottom to top, the limiting block 27 can be slid out along the track of the limiting groove 28 for easy cleaning. The liquid supply tank wall 25 and the liquid supply cover plate 29 can be separated by the buckle for easy cleaning of the inside. During long-term filtration, water will be stored in the water storage tank wall 10 for a certain period of time.The user can control the first motor 13 to drive the transmission rod 14 and the first bevel gear 15, which, under the limitation of the limiting collar 20, drive the second bevel gear 18 and the rotating rod 17 to rotate, thereby rotating the cleaning brush 19. This achieves the purpose of cleaning the dirt on the inner wall of the water storage tank 10, preventing dirt from forming on the inner wall due to long-term static water storage. The dirt cleaned by the cleaning brush 19 is finally transferred to the primary filter device 2 through the hose connected to the bottom of the water storage tank 10, and then circulated within the primary filter device 2 for filtration. This avoids water waste and eliminates the need for the user to clean the inside of the water storage device 3, reducing labor intensity.

[0023] Components not described in detail in this embodiment are all existing components that can be purchased through public channels.

[0024] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A detachable sewage treatment device, characterized in that, include: Support platform (1); A primary filtration device (2) is installed on the support platform (1) for preliminary filtration of sewage; A water storage device (3) is installed on the support platform (1) and located below the primary filter device (2) for receiving water after preliminary filtration. The water storage device (3) includes a water storage tank wall (10) and a cleaning component (12) installed in the water storage tank wall (10). A secondary filtration device (4) is installed on the support platform (1) and located below the water storage device (3) for secondary filtration of water; The liquid supply device (5) is set on the support platform (1) and located below the secondary filtration device (4) to evenly distribute the water in the water storage device (3) to the secondary filtration device (4). The cleaning assembly (12) includes a first motor (13) fixedly connected to the wall (10) of the water storage tank, a transmission rod (14) driven by the first motor (13) and having a first bevel gear (15) at its end, a fixed connecting rod (16) fixed inside the wall (10) of the water storage tank, a second bevel gear (18) rotatably connected to the fixed connecting rod (16) and meshing with the first bevel gear (15), the second bevel gear (18) being fixed to a rotating rod (17), a cleaning brush (19) fixedly connected to the rotating rod (17) and conforming to the inner wall of the water storage tank (10), the cleaning brush (19) being fixedly connected to the rotating rod (17), and a limiting collar (20) fixedly connected to the fixed connecting rod (16), the limiting collar (20) being sleeved on the transmission rod (14).

2. The detachable sewage treatment equipment according to claim 1, characterized in that, Four sets of first electric telescopic rods (11) are provided below the wall (10) of the water storage tank to control the overall lifting and lowering of the water storage device (3).

3. The detachable sewage treatment equipment according to claim 1, characterized in that, The secondary filtration device (4) includes a lower blocking block (21), a limiting ring (22) above the blocking block (21), and a second filter support plate (23) above the limiting ring (22). The top of the secondary filtration device (4) is provided with a retaining ring (24) for connecting with the liquid supply device (5).

4. A detachable sewage treatment device according to claim 3, characterized in that, The second filter carrier plate (23) is provided with a first-stage filter layer (33), a second-stage filter layer (34), a third-stage filter layer (35) and a fourth-stage filter layer (36) from top to bottom.

5. A detachable sewage treatment device according to claim 4, characterized in that, The materials of the first-stage filter layer (33), the second-stage filter layer (34), the third-stage filter layer (35), and the fourth-stage filter layer (36) are fine quartz sand, fine anthracite, activated carbon, and rare earth ceramic sand, respectively.

6. A detachable sewage treatment device according to claim 1, characterized in that, The liquid supply device (5) includes a liquid supply tank wall (25) and a liquid supply cover plate (29). A second motor (30) is fixedly connected to the liquid supply cover plate (29). A second electric telescopic rod (32) is fixedly connected to the support platform (1). The second motor (30) is fixedly connected to one end of the second electric telescopic rod (32). A rotating leaking plate (31) is fixedly connected to the output end of the second motor (30). A fixed leaking plate (26) is provided inside the liquid supply tank wall (25). Both the rotating leaking plate (31) and the fixed leaking plate (26) are provided with through holes with corresponding vertical positions.

7. A detachable sewage treatment device according to claim 6, characterized in that, The fixed leak plate (26) is provided with a limiting block (27), and the inner wall of the liquid supply tank (25) is provided with a limiting groove (28) that slides and engages with the limiting block (27).

8. A detachable sewage treatment device according to claim 1, characterized in that, The primary filtration device (2) includes a water storage tank (6), a first filter support plate (7) disposed in the water storage tank (6), a first filter screen (8) slidably connected to the first filter support plate (7), and a first filter cover plate (9) slidably connected to the support platform (1). An inlet pipe (38) is slidably passed through the first filter cover plate (9), and one end of the inlet pipe (38) is fixedly connected to the support platform (1).

9. A detachable sewage treatment device according to claim 8, characterized in that, The filter material in the first filter support plate (7) is coarse quartz sand.

10. A detachable sewage treatment device according to claim 1, characterized in that, The liquid supply device (5) is connected to the primary filter device (2) via a hose equipped with a pneumatic diaphragm pump (37), and the water storage device (3) is connected to the primary filter device (2) via a hose.

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