Sewage treatment device
By designing multiple optical catalysts, sleeve components, and light -emitting components in the sewage treatment device, the sufficient response of UV and light catalyst solves the problem of weakening ultraviolet rays in traditional sewage treatment methods, and improves the efficiency of sewage treatment.
Patent Information
- Application Number
- CN202411698322.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-01-28
AI Technical Summary
In traditional sewage treatment methods, ultraviolet rays are weakened when they pass through turbid sewage, resulting in insufficient reaction between ultraviolet rays and photocatalysts, and poor sewage purification effect.
A sewage treatment device is designed, including multiple catalysts, sleeve components and luminous components. The light emitting component consists of the first light department and the second emitting department. The first luminous department is set in a transparent waterproof pipe, and the second light is set in the sleeve component. Both can be disassembled and connected with the photocatalyst to ensure that ultraviolet and photocatalysts can be ensured Full response.
By combining the ultraviolet rays issued by the First Lights and the Second Light Department, it can fully remove the harmful substances in the sewage under the premise of less cost increase and improve the efficiency of sewage treatment.
Smart Images
Figure CN119370940A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of sewage treatment, and in particular to a sewage treatment device. Background Art
[0002] The traditional method of sewage purification is to add strong acid or strong alkali to the sewage to destroy the pollutants, and then add acid or alkali again to neutralize the strong acid or strong alkali added for the first time. The technical challenge is that it is difficult to completely neutralize the strong acid or strong alkali added for the first time, which is easy to cause secondary pollution. Therefore, photocatalytic sewage treatment technology that does not require the addition of strong acid or strong alkali to sewage has attracted increasing attention. Photocatalyst technology is a method that uses light to trigger catalytic reactions and stimulate the strong oxidation and reduction capabilities of photocatalyst substances to decompose pollutants. During the reaction process, it is only necessary to irradiate the photocatalyst with light of a suitable wavelength, and there is no need to add traditional strong acids or strong alkalis, so there will be no secondary pollution. Usually, photocatalysts are formed by nanoparticles, and their components can be titanium dioxide, zinc oxide, cadmium sulfide, tungsten trioxide, iron oxide, lead sulfide, tin dioxide, zinc sulfide, strontium titanate, silicon dioxide, etc., and their scale is between 1nm and 50μm.
[0003] Usually, a photocatalyst is arranged on the inner wall of the sewage pipe, and then a transparent waterproof tube is arranged in the middle of the inner wall of the sewage pipe, and then a light emitting body that emits ultraviolet light is arranged on the inner wall of the waterproof tube. After ultraviolet light contacts the photocatalyst, it can produce a strong redox ability, which can decompose organic pollutants such as formaldehyde, benzene, xylene, dimethylformamide, chlorobenzene, etc. by destroying the molecular chain of organic matter, and remove heavy metal ions such as lead, chromium, and mercury in the water through the negative charge generated under light and the metal ions, thereby playing a role in sewage purification. However, when the sewage is too turbid, the ultraviolet light will be weakened when passing through the sewage, the ultraviolet light and the photocatalyst will not react fully, and the sewage purification effect is poor. Summary of the invention
[0004] In order to solve the problem of insufficient reaction between ultraviolet rays and photocatalyst, the present invention provides a sewage treatment device, comprising:
[0005] Multiple photocatalysts;
[0006] A sleeve assembly, wherein the photocatalyst is detachably connected to the inner peripheral wall of the sleeve assembly; a plurality of the photocatalysts are arranged at intervals;
[0007] A light-emitting assembly, the light-emitting assembly comprising a support portion, a first light-emitting portion, a waterproof tube, and a second light-emitting portion; the support portion is detachably connected to the sleeve assembly; the waterproof tube is detachably connected to the support portion; the waterproof tube is disposed in a hollow cavity of the sleeve assembly; the waterproof tube and the sleeve assembly are spaced apart; the first light-emitting portion is detachably connected to an inner peripheral wall of the waterproof tube; the second light-emitting portion is detachably connected to the sleeve assembly; the second light-emitting portion is disposed between the inner peripheral wall of the sleeve assembly and the outer peripheral wall of the sleeve assembly; the second light-emitting portion is disposed adjacent to the photocatalyst;
[0008] The sewage treatment device includes a treatment state; the treatment state includes the ultraviolet light emitted by the first light-emitting part and the ultraviolet light emitted by the second light-emitting part irradiating in the direction of the photocatalyst, and the ultraviolet light emitted by the first light-emitting part and the ultraviolet light emitted by the second light-emitting part react with the photocatalyst to produce substances in the space surrounded by the inner circumferential wall of the sleeve assembly and the outer circumferential wall of the waterproof tube. In some embodiments, the sleeve assembly includes a sleeve unit; the sleeve unit includes a tube wall and at least one protrusion; one end of the protrusion is fixedly connected to the inner circumferential wall of the tube wall, and the other end extends in a direction close to the central axis of the tube wall and away from the outer circumferential wall of the tube wall; at least part of the photocatalyst is detachably connected to the inner circumferential wall of the tube wall; at least part of the photocatalyst is detachably connected to the side of the protrusion away from the outer circumferential wall of the tube wall.
[0009] In some embodiments, the second light-emitting portion is detachably connected to the protruding portion; and the second light-emitting portion is disposed in a space surrounded by the protruding portion and the tube wall.
[0010] In some embodiments, the sleeve assembly further includes a first reflecting portion; the first reflecting portion is detachably connected to the outer peripheral wall of the sleeve unit.
[0011] In some embodiments, at least a portion of the photocatalyst is detachably connected to the outer peripheral wall of the waterproof tube.
[0012] In some embodiments, the waterproof tube includes a waterproof shell and at least one waterproof protrusion; the waterproof shell is detachably connected to the support portion; one end of the waterproof protrusion is fixedly connected to the outer peripheral wall of the waterproof shell, and the other end extends toward the direction close to the sleeve assembly; the photocatalyst is detachably connected to the outer peripheral wall of the waterproof shell and a side of the waterproof protrusion close to the sleeve assembly.
[0013] In some embodiments, the first light-emitting portion is detachably connected to the waterproof protrusion; and the first light-emitting portion is disposed in a space surrounded by the waterproof protrusion.
[0014] In some embodiments, the light-emitting component further includes a second reflecting portion; the second reflecting portion is detachably connected to the inner circumferential wall of the waterproof tube; and the second reflecting portion is spaced apart from the first light-emitting portion.
[0015] In some embodiments, the support portion includes a support body and a circulation hole; one end of the support body is detachably connected to the waterproof tube, and the other end is detachably connected to the sleeve assembly; the circulation hole penetrates both sides of the support body along the axial direction of the sleeve assembly.
[0016] In some embodiments, the waterproof tube is coaxially arranged with the sleeve assembly.
[0017] To solve the problem of insufficient reaction between ultraviolet rays and photocatalyst, the present invention has the following advantages:
[0018] The first light-emitting part is arranged in a transparent waterproof tube, which is easy to assemble and low in cost. It emits ultraviolet rays in the direction of the sleeve assembly. The ultraviolet rays irradiate the photocatalyst to produce a reaction that can remove harmful substances in the sewage. The second light-emitting part is arranged in a transparent sleeve assembly. Although it is difficult to assemble and has a high cost, it is close to the photocatalyst, and there is no sewage between the second light-emitting part and the photocatalyst to hinder the transmission of ultraviolet rays, so the sewage treatment efficiency is high. The combination of the first light-emitting part and the second light-emitting part can fully remove harmful substances in the sewage with less cost increase. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A schematic diagram of a sewage treatment device according to an embodiment is shown;
[0020] Figure 2 A partial schematic diagram of a sewage treatment device according to another embodiment is shown.
[0021] Figure numerals: 01 sleeve assembly; 11 sleeve unit; 111 tube wall; 112 raised portion; 12 first reflecting portion; 02 light-emitting assembly; 21 supporting portion; 211 supporting body; 212 flow hole; 22 first light-emitting portion; 23 waterproof tube; 231 waterproof shell; 232 waterproof raised portion; 24 second reflecting portion; 25 second light-emitting portion; 03 photocatalyst. DETAILED DESCRIPTION
[0022] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.
[0023] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.
[0024] In this embodiment, generally speaking, a layer of photocatalyst 03 material will be laid on the inner wall of the sewage pipe, and a transparent waterproof casing will be cleverly installed between this layer of photocatalyst 03 and the inner wall of the pipe. Next, a light source device that can emit ultraviolet rays will be placed on the inner wall of the waterproof casing. When ultraviolet rays meet photocatalyst 03, they will jointly produce a powerful redox efficiency, which is sufficient to effectively decompose organic pollutants such as formaldehyde, benzene, xylene, dimethylformamide, chlorobenzene, etc. in sewage by breaking the molecular chains of organic matter. At the same time, the negative charges generated under the action of light can also react with metal ions, thereby removing heavy metal ions such as lead, chromium, and mercury in sewage, and achieving the purpose of sewage purification. However, it is worth noting that when the turbidity of sewage is high, ultraviolet rays will be greatly attenuated in the process of penetrating sewage, resulting in insufficient reaction between ultraviolet rays and photocatalyst 03, which in turn affects the effect of sewage purification. Therefore, a sewage treatment device is proposed. Figure 1 , Figure 2 As shown, the sewage treatment device may include a plurality of photocatalysts 03, a sleeve assembly 01, and a light emitting assembly 02. The photocatalyst 03 may be detachably connected to the inner peripheral wall of the sleeve assembly 01, and the detachable connection may be achieved by coating the photocatalyst 03 on the inner peripheral wall of the sleeve assembly 01, and a plurality of photocatalysts 03 may be arranged at intervals.
[0025] The light-emitting component 02 may include a support portion 21, a first light-emitting portion 22, a waterproof tube 23, and a second light-emitting portion 25. The support portion 21 may be detachably connected to the sleeve component 01, and the detachable connection may facilitate the disassembly and assembly of the support portion 21 and the sleeve component 01. The waterproof tube 23 may be detachably connected to the support portion 21. The waterproof tube 23 may be disposed in the hollow cavity of the sleeve component 01, and the waterproof tube 23 may be spaced apart from the sleeve component 01, and the space between the outer peripheral wall of the waterproof tube 23 and the inner peripheral wall of the sleeve component 01 may be used to circulate sewage. The first light-emitting portion 22 may be used to emit ultraviolet rays. The waterproof tube 23 may be made of a transparent material. The first light-emitting portion 22 may be detachably connected to the inner peripheral wall of the waterproof tube 23, and the waterproof tube 23 may isolate the first light-emitting portion 22 from the sewage to prevent the first light-emitting portion 22 from contacting the sewage and short-circuiting. The first light-emitting part 22 can emit ultraviolet rays toward the inner circumferential wall of the sleeve assembly 01, so that the ultraviolet rays emitted by the first light-emitting part 22 react with the photocatalyst 03 on the inner circumferential wall of the sleeve assembly 01, thereby treating harmful substances in sewage. The second light-emitting part 25 can be detachably connected to the sleeve assembly 01, and the second light-emitting part 25 can be used to emit ultraviolet rays. The sleeve assembly 01 can be made of a transparent material. The second light-emitting part 25 can be arranged between the inner circumferential wall of the sleeve assembly 01 and the outer circumferential wall of the sleeve assembly 01, and the second light-emitting part 25 can be prevented from contacting with sewage and being damaged without adding additional waterproof components. The second light-emitting part 25 can be arranged adjacent to the photocatalyst 03, and even if the ultraviolet rays emitted by the first light-emitting part 22 are weakened by sewage, the ultraviolet rays emitted by the second light-emitting part 25 can fully react with the photocatalyst 03, thereby effectively treating harmful substances in sewage. The method of detachably connecting the first light-emitting part 22 to the inner peripheral wall of the waterproof tube 23 is convenient for installation and has a low manufacturing cost, but the ultraviolet light emitted by the first light-emitting part 22 is easily weakened by sewage; the second light-emitting part 25 is detachably connected between the inner peripheral wall of the sleeve assembly 01 and the outer peripheral wall of the sleeve assembly 01. Although the installation is difficult and the manufacturing cost is high, the distance between the second light-emitting part 25 and the photocatalyst 03 on the sleeve assembly 01 is short, and there is no sewage between the second light-emitting part 25 and the photocatalyst 03 on the sleeve assembly 01. The ultraviolet light emitted by the second light-emitting part 25 can fully react with the photocatalyst 03 to effectively treat the sewage. This method of combining the first light-emitting part 22 with the second light-emitting part 25 can allow the photocatalyst 03 to fully react with the ultraviolet light at a low cost, thereby treating harmful substances in sewage.
[0026] The sewage treatment device may include a treatment state. The treatment state may include the ultraviolet light emitted by the first light-emitting part 22 and the ultraviolet light emitted by the second light-emitting part 25 irradiating in the direction of the photocatalyst 03, and the ultraviolet light emitted by the first light-emitting part 22 and the ultraviolet light emitted by the second light-emitting part 25 reacting with the photocatalyst 03 to produce substances (the substances may be negative charges) in the space surrounded by the inner peripheral wall of the sleeve assembly and the outer peripheral wall of the waterproof tube. At the same time, when the ultraviolet light emitted by the first light-emitting part 22 and the ultraviolet light emitted by the second light-emitting part 25 meet the photocatalyst 03 respectively, the ultraviolet light and the photocatalyst 03 react with each other to produce a strong redox efficiency, which is sufficient to effectively decompose organic pollutants such as formaldehyde, benzene, xylene, dimethylformamide, chlorobenzene, etc. in sewage by breaking the molecular chain of organic matter.
[0027] In this embodiment, if Figure 1 , Figure 2 As shown, the sleeve assembly 01 may include a sleeve unit 11. The sleeve unit 11 may include a tube wall 111 and at least one protrusion 112. One end of the protrusion 112 may be fixedly connected to the inner circumferential wall of the tube wall 111, and the other end may extend in the direction of the outer circumferential wall away from the tube wall 111. The fixed connection method can make the sleeve unit 11 have high strength. At least part of the photocatalyst 03 can be detachably connected to the inner circumferential wall of the tube wall 111. At least part of the photocatalyst 03 can be detachably connected to the side of the outer circumferential wall of the protrusion 112 away from the tube wall 111. The protrusion 112 can arrange as many photocatalysts 03 as possible without changing the axial size of the tube wall 111, thereby increasing the contact area between the pollutants in the sewage and the photocatalyst 03, and allowing ultraviolet rays to react with more photocatalysts 03. In addition, the flow path of the sewage in the sleeve unit 11 is increased without increasing the axial size of the tube wall 111, thereby improving the treatment efficiency of the sewage.
[0028] In this embodiment, if Figure 1 , Figure 2 As shown, the second light-emitting portion 25 can be detachably connected to the protruding portion 112. The protruding portion 112 can be made of a transparent material. When the second light-emitting portion 25 is arranged in the space surrounded by the protruding portion 112 and the tube wall 111, the ultraviolet light emitted by the second light-emitting portion 25 has a wider irradiation range and irradiates a larger area of the photocatalyst 03, thereby allowing the photocatalyst 03 to react with the ultraviolet light more fully and more efficiently treat harmful substances in the sewage.
[0029] In this embodiment, if Figure 1 , Figure 2As shown, the sleeve assembly 01 may further include a first reflective portion 12. The first reflective portion 12 may be detachably connected to the outer peripheral wall of the sleeve unit 11. The first reflective portion 12 may be a metal material with high light reflectivity such as aluminum, aluminum-magnesium alloy, silver, etc., and may reflect ultraviolet rays emitted by the first light-emitting portion 22 and the second light-emitting portion 25 to the photocatalyst 03, thereby improving the treatment efficiency of sewage.
[0030] In this embodiment, if Figure 1 , Figure 2 As shown, at least part of the photocatalyst 03 can also be detachably connected to the outer peripheral wall of the waterproof tube 23, so as to make full use of the outer peripheral wall of the waterproof tube 23. When the volume of the sleeve assembly 01 is certain, as many photocatalysts 03 as possible can be arranged, so that the ultraviolet rays from the first light-emitting part 22 and the second light-emitting part 25 can react with more photocatalysts 03, thereby improving the efficiency of sewage treatment.
[0031] In this embodiment, if Figure 1 , Figure 2 As shown, the waterproof tube 23 may include a waterproof shell 231 and at least one waterproof protrusion 232. The waterproof shell 231 may be detachably connected to the support portion 21. One end of the waterproof protrusion 232 may be fixedly connected to the outer peripheral wall of the waterproof shell 231, and the other end may extend toward the direction close to the sleeve assembly 01. The photocatalyst 03 may be detachably connected to the outer peripheral wall of the waterproof shell 231 and the side of the waterproof protrusion 232 close to the sleeve assembly 01, respectively. This arrangement allows the waterproof protrusion 232 to arrange as many photocatalysts 03 as possible without changing the axial size of the tube wall 111, thereby increasing the contact area between the pollutants and the photocatalyst 03, and allowing ultraviolet rays to react with more photocatalysts 03. In addition, the flow path of sewage in the sleeve assembly 01 is increased without increasing the axial size of the tube wall 111, thereby improving the sewage treatment efficiency.
[0032] In this embodiment, if Figure 1 , Figure 2 As shown, the first light emitting part 22 can be detachably connected to the waterproof protrusion 232, and the waterproof protrusion 232 can be made of a transparent material. The first light emitting part 22 is arranged in the space surrounded by the waterproof protrusion 232, so that the ultraviolet light emitted by the first light emitting part 22 can have a wider irradiation range and irradiate a larger area of the photocatalyst 03, so that the photocatalyst 03 reacts more fully with the ultraviolet light, and the harmful substances in the sewage are treated more efficiently.
[0033] In this embodiment, if Figure 1 , Figure 2As shown, the light emitting assembly 02 may further include a second reflecting portion 24. The second reflecting portion 24 may be detachably connected to the inner peripheral wall of the waterproof tube 23. The second reflecting portion 24 may be spaced apart from the first light emitting portion 22. The second reflecting portion 24 may be a metal material with high light reflectivity, such as aluminum, aluminum-magnesium alloy, or silver, and may reflect the ultraviolet rays emitted by the first light emitting portion 22 and the second light emitting portion 25 through the transparent waterproof tube 23 to the photocatalyst 03, thereby improving the sewage treatment efficiency.
[0034] In this embodiment, if Figure 1 , Figure 2 As shown, the support portion 21 may include a support body 211 and a flow hole 212. One end of the support body 211 may be detachably connected to the waterproof tube 23, and the other end may be detachably connected to the sleeve assembly 01, and the support body 211 may be used to fix the relative position of the sleeve assembly 01 and the waterproof tube 23. The flow hole 212 may penetrate both sides of the support body 211 along the axial direction of the sleeve assembly 01, so that sewage can flow smoothly when entering and leaving the sewage treatment device.
[0035] In this embodiment, if Figure 1 , Figure 2 As shown, the waterproof tube 23 can be arranged coaxially with the sleeve assembly 01, so that the gaps between the waterproof tube 23 and the sleeve assembly 01 along the circumferential direction of the sleeve assembly 01 are consistent, so that the shortest distance between each first light-emitting part 22 and the nearest photocatalyst 03 is the same, avoiding the situation where harmful substances in some sewage are not completely treated.
[0036] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.
Claims
1. A sewage treatment device, characterized in that: The sewage treatment device comprises: Multiple photocatalysts; A sleeve assembly, wherein the photocatalyst is detachably connected to the inner peripheral wall of the sleeve assembly; a plurality of the photocatalysts are arranged at intervals; A light-emitting assembly, the light-emitting assembly comprising a support portion, a first light-emitting portion, a waterproof tube, and a second light-emitting portion; the support portion is detachably connected to the sleeve assembly; the waterproof tube is detachably connected to the support portion; the waterproof tube is disposed in a hollow cavity of the sleeve assembly; the waterproof tube and the sleeve assembly are spaced apart; the first light-emitting portion is detachably connected to an inner peripheral wall of the waterproof tube; the second light-emitting portion is detachably connected to the sleeve assembly; the second light-emitting portion is disposed between the inner peripheral wall of the sleeve assembly and the outer peripheral wall of the sleeve assembly; the second light-emitting portion is disposed adjacent to the photocatalyst; The sewage treatment device includes a treatment state; the treatment state includes the ultraviolet rays emitted by the first light-emitting part and the ultraviolet rays emitted by the second light-emitting part irradiating in the direction of the photocatalyst, and the ultraviolet rays emitted by the first light-emitting part and the ultraviolet rays emitted by the second light-emitting part respectively react with the photocatalyst to produce substances in the space surrounded by the inner wall of the sleeve assembly and the outer wall of the waterproof tube.
2. A sewage treatment device according to claim 1, characterized in that: The sleeve assembly includes a sleeve unit; the sleeve unit includes a tube wall and at least one protrusion; one end of the protrusion is fixedly connected to the inner circumferential wall of the tube wall, and the other end extends toward the direction close to the central axis of the tube wall; at least part of the photocatalyst is detachably connected to the inner circumferential wall of the tube wall; at least part of the photocatalyst is detachably connected to the side of the outer circumferential wall of the tube wall away from the protrusion.
3. A sewage treatment device according to claim 2, characterized in that: The second light-emitting portion is detachably connected to the protruding portion; the second light-emitting portion is arranged in a space surrounded by the protruding portion and the tube wall.
4. A sewage treatment device according to claim 2, characterized in that: The sleeve assembly further includes a first reflecting portion; the first reflecting portion is detachably connected to the outer peripheral wall of the sleeve unit.
5. A sewage treatment device according to claim 1, characterized in that: At least a portion of the photocatalyst is detachably connected to the outer peripheral wall of the waterproof tube.
6. A sewage treatment device according to claim 1, characterized in that: The waterproof tube includes a waterproof shell and at least one waterproof protrusion; the waterproof shell is detachably connected to the support portion; one end of the waterproof protrusion is fixedly connected to the outer peripheral wall of the waterproof shell, and the other end extends toward the direction close to the sleeve assembly; the photocatalyst is detachably connected to the outer peripheral wall of the waterproof shell and a side of the waterproof protrusion close to the sleeve assembly.
7. A sewage treatment device according to claim 6, characterized in that: The first light-emitting portion is detachably connected to the waterproof protrusion; the first light-emitting portion is arranged in a space surrounded by the waterproof protrusion.
8. A sewage treatment device according to claim 1, characterized in that: The light-emitting component also includes a second reflecting part; the second reflecting part is detachably connected to the inner peripheral wall of the waterproof tube; the second reflecting part is spaced apart from the first light-emitting part.
9. A sewage treatment device according to claim 1, characterized in that: The support portion includes a support body and a circulation hole; one end of the support body is detachably connected to the waterproof tube, and the other end is detachably connected to the sleeve assembly; the circulation hole penetrates both sides of the support body along the axial direction of the sleeve assembly.
10. A sewage treatment device according to claim 1, characterized in that: The waterproof pipe is coaxially arranged with the sleeve assembly.