Sewage treatment system for ecological treatment of river channel

By designing a sewage treatment system for river ecological treatment, using water pumps to drive fluid to suck the bottom sludge and transport it to the water purification pool, the problem of the existing system failing to deal with bottom sludge pollution is solved, and the significant improvement of water quality and the effect of river ecological treatment is achieved.

CN119683801AInactive Publication Date: 2025-03-25FOSHAN NANLI ENG SUPERVISION CO LTD
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Patent Information

Application Number
CN202411918694.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-03-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing sewage treatment system fails to effectively treat pollutants in the bottom sludge, resulting in deterioration of water quality and affecting the living environment of aquatic organisms.

Method used

A sewage treatment system for ecological treatment of river channels is designed. By setting the first water pipe and the second water pipe close to or buried in the bottom sludge, the first water pump drives the fluid to suck the bottom sludge and transport it to the water purification pool, pollutants are removed and water quality is improved.

Benefits of technology

Effectively remove pollutants in the bottom sludge, improve water quality, achieve the purpose of river ecological governance and sewage treatment, and improve the problem that the existing system fails to deal with the bottom sludge.

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Abstract

The invention relates to the technical field of sewage treatment equipment, and particularly discloses a sewage treatment system for river ecological management, the sewage treatment system comprises a pipeline assembly and a water purification assembly, the pipeline assembly comprises a first water pipe and a second water pipe, and the second water pipe is fixedly arranged in the first water pipe; a flowing part allowing fluid to flow is arranged between the first water pipe and the second water pipe, through holes are formed in the first water pipe and the second water pipe, the first water pipe is communicated with the second water pipe, the water purification assembly comprises a first water pump and a water purification pool, and the first water pump is communicated with the first water pipe and the water purification pool. The sewage treatment system has the effect of improving the problem that an existing sewage treatment system cannot treat bottom mud.
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Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment equipment, and in particular to a sewage treatment system for river ecological management. Background Art

[0002] River ecological management refers to the comprehensive management and restoration of the river and its surrounding environment to restore and protect the natural ecological functions and biodiversity of the water body, while improving the self-purification capacity of the water body to ensure the cleanliness and health of the water quality. In order to carry out ecological management of the river, a sewage treatment system is usually set up in the river to treat the water body.

[0003] Water bodies include not only water, but also dissolved substances, suspended matter, sediment, aquatic organisms, etc. Existing sewage treatment systems usually only treat water, dissolved substances and suspended matter in water, but ignore the treatment of sediment. A large amount of pollutants, including heavy metals, organic pollutants and nutrients, have accumulated in the sediment, posing a long-term threat to the ecological health of the water body. Pollutants in the sediment can re-enter the water body through resuspension, causing water quality deterioration and affecting the living environment of aquatic organisms. Summary of the invention

[0004] In order to improve the problem that the existing sewage treatment system fails to treat the bottom sludge, the present application provides a sewage treatment system for river ecological management.

[0005] The sewage treatment system for river ecological management provided in this application adopts the following technical solutions: A sewage treatment system for river ecological management, comprising: A pipeline assembly, comprising a first water pipe and a second water pipe, wherein the second water pipe is fixedly arranged in the first water pipe, a flow portion for fluid movement is arranged between the first water pipe and the second water pipe, the first water pipe and the second water pipe are both provided with through holes, the first water pipe is connected with the second water pipe and an external environment, and the first water pipe and the second water pipe are used to transport fluid; A water purification component includes a first water pump and a water purification tank, wherein the water inlet end of the first water pump is connected to the first water pipe and the second water pipe, and the water outlet end of the first water pump is connected to the water purification tank, the first water pump is used to drive the first water pipe and the second water pipe to suck in fluid, and to drive the fluid in the flow part and the fluid in the second water pipe to move to the water purification tank, and the water purification tank is used to process the fluid output by the first water pump.

[0006] By adopting the above technical solution, the first water pipe and the second water pipe are both arranged at a position close to the bottom mud or buried in the bottom mud. The first water pump can drive the first water pipe and the second water pipe to suck the bottom mud and / or the river water mixed with the bottom mud, and transport the bottom mud and / or the river water mixed with the bottom mud in the flow part and the second water pipe to the water purification tank, so as to remove pollutants therein in the water purification tank and improve the water quality, thereby achieving the purpose of ecological management and sewage treatment, and improving the problem that the existing sewage treatment system fails to treat the bottom mud.

[0007] Preferably, the water purification tank includes a sedimentation tank and a treatment tank. The sedimentation tank is connected to the water outlet of the first water pump, and the sedimentation tank is used to precipitate the fluid output by the first water pump. The treatment tank is connected to the sedimentation tank, and the treatment tank is used to harmlessly treat the fluid output by the sedimentation tank.

[0008] By adopting the above technical solution, the sedimentation tank can perform physical sedimentation treatment on the fluid output by the first water pump to remove most of the solid pollutants. The treatment tank can remove or reduce the remaining harmful substances in the fluid output by the sedimentation tank, such as organic matter, nitrogen, phosphorus, etc., to ensure that the fluid meets environmental protection standards before discharge and reduce the negative impact on the river ecosystem.

[0009] Preferably, it also includes a water supply component, which includes a second water pump, the water inlet end of the second water pump is connected to the treatment tank, the water outlet end of the second water pump is connected to the end of the second water pipe away from the first water pump, and the second water pump is used to transport the fluid in the treatment tank to the second water pipe.

[0010] By adopting the above technical solution, the water supply component can realize water circulation and re-supply in river ecological management. The second water pump can drive the fluid in the treatment pool into the second water pipe and transport it to the river, thereby realizing the circulation of river water. At the same time, the second water pump can drive the fluid in the treatment pool into the second water pipe and flush the second water pipe to remove sediments and possible blockages in the water pipe.

[0011] Preferably, the water supply assembly also includes a third water pump, the water inlet end of the third water pump is connected to the treatment tank, the water outlet end of the third water pump is connected to an end of the flow part away from the first water pump, and the third water pump is used to transport the fluid in the treatment tank to the flow part.

[0012] By adopting the above technical solution, the third water pump can drive the fluid in the treatment pool into the flow part and transport it to the river channel, thereby realizing the circulation of river water. At the same time, the third water pump can drive the fluid in the treatment pool into the flow part and flush the flow part to remove sediment and possible blockages in the flow part.

[0013] Preferably, it further comprises a conveying component, wherein the conveying component is used to convey solids and / or fluids to the flow part.

[0014] By adopting the above technical solution, the conveying component can convey solids and / or fluids, such as artificial sand, activated carbon powder and reagents, which are helpful for adsorbing and / or decomposing the sludge, to the flow part, so as to further treat the sludge and improve the problem that the existing sewage treatment system fails to treat the sludge.

[0015] Preferably, the conveying assembly comprises a pulverizer, the pulverizer is used to pulverize solids, and a discharge end of the pulverizer is connected to the flow portion.

[0016] By adopting the above technical solution, the pulverizer can crush the solid material into particles or powder, and promote the rapid diffusion of the solid sprayed from the flow part.

[0017] Preferably, the conveying assembly further comprises a gas pump, wherein the gas pump is connected to the flow portion and is used to convey gas to the flow portion.

[0018] By adopting the above technical solution, the gas pump can transport air to the flow part, increase the dissolved oxygen content in the water body, promote the growth of aerobic microorganisms, accelerate the decomposition of organic matter, and improve the efficiency of sludge treatment.

[0019] Preferably, the pipeline assembly also includes a first valve, which is detachably arranged at one end of the first water pipe close to the first water pump, and the first valve is connected to the first water pipe, the second water pipe and the first water pump, and the first valve is used to limit the fluid from entering the first water pump from the first water pipe and / or the second water pipe.

[0020] By adopting the above technical solution, the first valve can ensure the flow direction of the fluid and prevent the fluid from entering the first water pump when closed.

[0021] Preferably, the pipeline assembly also includes a second valve, which is detachably arranged at one end of the first water pipe close to the third water pump, and the second valve is connected to the flow part and the third water pump, and the second valve is used to limit the fluid from the third water pump from entering the flow part.

[0022] By adopting the above technical solution, the second valve can ensure the flow direction of the fluid and prevent the fluid from entering the flow part when closed.

[0023] Preferably, the pipeline assembly is also provided with a third valve, and the third valve is detachably arranged at one end of the second water pipe close to the second water pump. The third valve is connected to the second water pipe and the second water pump, and the third valve is used to limit the fluid from the second water pump to enter the second water pipe.

[0024] By adopting the above technical solution, the third valve can ensure the flow direction of the fluid and prevent the fluid from entering the second water pipe when closed.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The first water pipe and the second water pipe are both arranged at a position close to the bottom mud or buried in the bottom mud. The first water pump can drive the first water pipe and the second water pipe to suck the bottom mud and / or the river water mixed with the bottom mud, and transport the bottom mud and / or the river water mixed with the bottom mud in the flow part and the second water pipe to the water purification pool, so as to remove the pollutants therein in the water purification pool and improve the water quality, thereby achieving the purpose of ecological management and sewage treatment, and improving the problem that the existing sewage treatment system fails to treat the bottom mud; 2. The sedimentation tank can physically precipitate the fluid output by the first water pump to remove most of the solid pollutants. The treatment tank can remove or reduce the remaining harmful substances in the fluid output by the sedimentation tank, such as organic matter, nitrogen, phosphorus, etc., to ensure that the fluid meets environmental protection standards before discharge and reduce the negative impact on the river ecosystem; 3. The water supply component can realize water circulation and re-supply in river ecological management. The second water pump can drive the fluid in the treatment pool into the second water pipe and transport it to the river, realizing the circulation of river water. At the same time, the second water pump can drive the fluid in the treatment pool into the second water pipe and flush the second water pipe to remove sediments and possible blockages in the water pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of an actual working scene of a sewage treatment system for river ecological management in an embodiment of the present application; Figure 2 It is a structural schematic diagram of a sewage treatment system for river ecological management in an embodiment of the present application; Figure 3 It is a top view of the sewage treatment system for river ecological management in the embodiment of the present application; Figure 4 It is one of the vertical cross-sectional structural schematic diagrams of the pipeline assembly in the embodiment of the present application; Figure 5 This is the second vertical cross-sectional structural schematic diagram of the pipeline assembly in the embodiment of the present application.

[0027] Explanation of the reference numerals: 1. Pipe assembly; 11. First water pipe; 12. Second water pipe; 13. Flange ring; 14. Drill rod; 15. First valve; 16. Second valve; 17. Third valve; 18. Flow part; 2. Water purification assembly; 21. First water pump; 22. Water purification tank; 221. Sedimentation tank; 222. Treatment tank; 3. Water supply assembly; 31. Second water pump; 32. Third water pump; 4. Conveying assembly; 41. Crusher; 42. Gas pump. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-5 This application is described in further detail.

[0029] The present application embodiment discloses a sewage treatment system for river ecological management. Figure 1 and Figure 2 The sewage treatment system for river ecological management includes a pipeline component 1, a water purification component 2, a water supply component 3 and a transportation component 4.

[0030] like Figure 3 and Figure 4 As shown, the pipeline assembly 1 includes a first water pipe 11 and a second water pipe 12. The second water pipe 12 is fixed in the first water pipe 11 by bolts and / or connecting rods that penetrate the first water pipe 11 and the second water pipe 12. A flow portion 18 for fluid flow is provided between the first water pipe 11 and the second water pipe 12. The first water pipe 11 and the second water pipe 12 are both provided with a plurality of through holes, and the plurality of through holes are used for fluid to flow into or out of the flow portion 18 and the second water pipe 12. The first water pipe 11 is connected to the flow portion 18 and the external environment through corresponding through holes, and the second water pipe 12 is connected to the flow portion 18 through corresponding through holes. The first water pipe 11 and the second water pipe 12 are used to transport fluid.

[0031] Please refer to Figure 5 In the embodiment of the present application, the first water pipe 11 and the second water pipe 12 are arranged at a position close to the bottom mud or buried in the bottom mud. The outer wall of the first water pipe 11 is provided with a flange ring 13. The outer wall of the flange ring 13 is welded with a metal ring with a drill rod 14 inserted therethrough. A limiting protrusion is fixedly provided at one end of the drill rod 14 close to the riverbed. The drill rod 14 is inserted into the riverbed. A thread is provided on the upper part of the drill rod 14, and a nut is detachably provided through the thread. The nut and the limiting protrusion jointly limit the position of the metal ring, thereby limiting the position of the flange ring 13, and finally limiting the position of the first water pipe 11. The first water pipe 11 is fixedly provided at a position close to the bottom mud or buried in the bottom mud through the drill rod 14 and the flange ring 13.

[0032] As shown in FIG. 3 , the water purification component 2 includes a first water pump 21 and a water purification tank 22. The water inlet end of the first water pump 21 is connected to the first water pipe 11 and the second water pipe 12, and the water outlet end of the first water pump 21 is connected to the water purification tank 22. The first water pump 21 is used to drive the fluid in the flow part 18 and the second water pipe 12 into the water purification tank 22. The water purification tank 22 is used to process the fluid output by the first water pump 21.

[0033] In an embodiment of the present application, the water purification tank 22 includes a sedimentation tank 221 and a treatment tank 222. The sedimentation tank 221 is connected to the water outlet of the first water pump 21. The sedimentation tank 221 is used to precipitate the fluid output by the first water pump 21 to remove most of the solid pollutants. The treatment tank 222 is connected to the sedimentation tank 221. A reagent is provided in the treatment tank 222. The treatment tank 222 is used to remove or reduce the remaining harmful substances in the fluid output by the sedimentation tank 221, such as organic matter, nitrogen, phosphorus, etc., to ensure that the fluid meets environmental protection standards before discharge and reduce the negative impact on the river ecosystem.

[0034] Specifically, the first water pump 21 drives the first water pipe 11 and the second water pipe 12 to suck in the sludge and / or the river water mixed with the sludge, and transports the sludge and / or the river water mixed with the sludge in the flow portion 18 and the second water pipe 12 to the clean water tank 22, so as to remove pollutants therein in the clean water tank 22 and improve the water quality, thereby achieving the purpose of ecological management and sewage treatment and improving the problem that the existing sewage treatment system fails to treat the sludge.

[0035] like Figure 3 As shown, the water supply assembly 3 includes a second water pump 31 and a third water pump 32. The water inlet end of the second water pump 31 is connected to the treatment tank 222 through a plastic pipe, and the water outlet end of the second water pump 31 is connected to an end of the second water pipe 12 away from the first water pump 21 through a plastic pipe. The second water pump 31 is used to transport the fluid in the treatment tank 222 to the second water pipe 12, and the water inlet end of the third water pump 32 is connected to the treatment tank 222, and the water outlet end of the third water pump 32 is connected to an end of the flow part 18 away from the first water pump 21 through a plastic pipe. The third water pump 32 is used to transport the fluid in the treatment tank 222 to the flow part 18.

[0036] In the embodiment of the present application, the water supply component 3 can realize water circulation and re-supply in river ecological management, and the second water pump 31 can drive the fluid in the treatment tank 222 into the second water pipe 12 and transport it to the river, so as to realize the circulation of river water. At the same time, the second water pump 31 can drive the fluid in the treatment tank 222 into the second water pipe 12 and flush the second water pipe 12 to remove sediment and possible blockages in the water pipe; the third water pump 32 can drive the fluid in the treatment tank 222 into the flow part 18 and transport it to the river, so as to realize the circulation of river water. At the same time, the third water pump 32 can drive the fluid in the treatment tank 222 into the flow part 18 and flush the flow part 18 to remove sediment and possible blockages in the flow part 18.

[0037] like Figure 3 As shown, the conveying component 4 is used to convey solids and / or fluids to the flow part 18; in the embodiment of the present application, the conveying component 4 includes a pulverizer 41 and a gas pump 42, and the discharge end of the pulverizer 41 and the discharge end of the gas pump 42 are both connected to the flow part 18 through a plastic pipe. The pulverizer 41 is used to crush the solid material into particles or powder, so that after the solid enters the flow part 18, the solid ejected from the flow part 18 quickly diffuses, and the gas pump 42 can convey air to the flow part 18, so that the air is ejected from the flow part 18, thereby increasing the dissolved oxygen content in the water body, promoting the growth of aerobic microorganisms, accelerating the decomposition of organic matter, and improving the efficiency of sludge treatment.

[0038] Specifically, the conveying component 4 can convey solids and / or fluids, such as artificial sand, activated carbon powder and chemicals, which are helpful for adsorbing and / or decomposing the sludge, to the flow part 18, so as to further treat the sludge and improve the problem that the existing sewage treatment system fails to treat the sludge.

[0039] like Figure 3 As shown, the pipeline assembly 1 is also provided with a first valve 15, a second valve 16 and a third valve 17. The first valve 15, the second valve 16 and the third valve 17 are all butterfly valves. The first valve 15 is detachably arranged at one end of the first water pipe 11 close to the first water pump 21. The first valve 15 is connected with the first water pipe 11, the second water pipe 12 and the first water pump 21. The first valve 15 is used to limit the fluid from the first water pipe 11 and / or the second water pipe 12 to enter the first water pump 21, ensure the flow direction of the fluid, and prevent the fluid from entering the first water pump 21 when the first valve 15 is closed.

[0040] In the embodiment of the present application, the second valve 16 is detachably arranged at one end of the first water pipe 11 close to the third water pump 32, the second valve 16 is connected to the flow part 18 and the third water pump 32, the second valve 16 is used to limit the fluid from the third water pump 32 to enter the flow part 18, ensure the flow direction of the fluid, and prevent the fluid from entering the flow part 18 when the second valve 16 is closed; the third valve 17 is detachably arranged at one end of the second water pipe 12 close to the second water pump 31, the third valve 17 is connected to the second water pipe 12 and the second water pump 31, the third valve 17 is used to limit the fluid from the second water pump 31 to enter the second water pipe 12, ensure the flow direction of the fluid, and prevent the fluid from entering the second water pipe 12 when closed.

[0041] Illustratively, in an embodiment of the present application, an operator can start the first water pump 21 after closing the second valve 16 and the third valve 17. At this time, the first valve 15 is in an open state, and the first water pipe 11 and the second water pipe 12 are both connected to the first water pump 21. The first water pump 21 drives the bottom mud and / or the bottom mud mixed with river water outside the first water pipe 11 into the flow portion 18 and the second water pipe 12 to clean the bottom mud and the river water mixed with the bottom mud on the surface of the riverbed. The first water pump 21 drives the bottom mud and / or the bottom mud mixed with river water into the clean water tank 22, and finally treats the bottom mud through the purification tank.

[0042] Illustratively, in an embodiment of the present application, an operator can start the second water pump 31 and the third water pump 32 after closing the first valve 15. At this time, the second valve 16 and the third valve 17 are in an open state, and water is injected into the flow portion 18 and the second water pipe 12 through the second water pump 31 and the third water pump 32 connected to the first water pipe 11 and the second water pipe 12, so that the first water pipe 11 sprays water toward the surrounding side, stirs the bottom mud deep in the riverbed and stirs the river water on the surrounding side, thereby cleaning the bottom mud deep in the riverbed.

[0043] Illustratively, in an embodiment of the present application, when the first water pipe 11 and / or the second water pipe 12 is blocked, the operator can start the second water pump 31 and the third water pump 32 after closing the first valve 15. At this time, the second valve 16 and the third valve 17 are in an open state, and water is injected into the flow part 18 and the second water pipe 12 through the second water pump 31 and the third water pump 32 connected to the first water pipe 11 and the second water pipe 12. The flow part 18 and the second water pipe 12 are flushed by the water flow to clear the blockage in the flow part 18 and the second water pipe 12.

[0044] Illustratively, in an embodiment of the present application, an operator can start the second water pump 31 and the third water pump 32 after closing the first valve 15, and start the grinder 41 and / or the gas pump 42, and convey solids and / or fluids, such as artificial sand, activated carbon powder, and chemical agents, which are helpful for adsorbing and / or decomposing the sediment, to the flow portion 18 through the grinder 41 and / or the gas pump 42, to further treat the sediment or lay artificial sand on the riverbed surface, to increase the permeability of the riverbed, and to increase the dissolved oxygen content in the water body, to promote the growth of aerobic microorganisms, to accelerate the decomposition of organic matter, to improve the ecological environment of the riverbed, to promote the growth of aquatic organisms, and to improve the problem that the existing sewage treatment system fails to treat the sediment.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sewage treatment system for river ecological management, characterized in that: include: A pipeline assembly (1) comprises a first water pipe (11) and a second water pipe (12), wherein the second water pipe (12) is fixedly arranged in the first water pipe (11), a flow portion (18) for fluid movement is arranged between the first water pipe (11) and the second water pipe (12), the first water pipe (11) and the second water pipe (12) are both provided with through holes, the first water pipe (11) and the second water pipe (12) are in communication with an external environment, and the first water pipe (11) and the second water pipe (12) are used to transport fluid; The water purification component (2) comprises a first water pump (21) and a water purification tank (22), wherein the water inlet end of the first water pump (21) is connected to the first water pipe (11) and the second water pipe (12), and the water outlet end of the first water pump (21) is connected to the water purification tank (22), the first water pump (21) is used to drive the first water pipe (11) and the second water pipe (12) to suck in fluid, and to drive the fluid in the flow part (18) and the fluid in the second water pipe (12) to move to the water purification tank (22), and the water purification tank (22) is used to process the fluid output by the first water pump (21).

2. The sewage treatment system for river ecological management according to claim 1 is characterized by: The water purification tank (22) comprises a sedimentation tank (221) and a treatment tank (222); the sedimentation tank (221) is connected to the water outlet of the first water pump (21); the sedimentation tank (221) is used to sediment the fluid output by the first water pump (21); the treatment tank (222) is connected to the sedimentation tank (221); the treatment tank (222) is used to perform harmless treatment on the fluid output by the sedimentation tank (221).

3. The sewage treatment system for river ecological management according to claim 2 is characterized by: It also includes a water supply component (3), which includes a second water pump (31), the water inlet end of the second water pump (31) is connected to the treatment tank (222), the water outlet end of the second water pump (31) is connected to an end of the second water pipe (12) away from the first water pump (21), and the second water pump (31) is used to transport the fluid in the treatment tank (222) to the second water pipe (12).

4. The sewage treatment system for river ecological management according to claim 3 is characterized by: The water supply assembly (3) further comprises a third water pump (32), the water inlet end of the third water pump (32) being connected to the treatment tank (222), the water outlet end of the third water pump (32) being connected to an end of the flow portion (18) away from the first water pump (21), and the third water pump (32) being used to transport the fluid in the treatment tank (222) to the flow portion (18).

5. The sewage treatment system for river ecological management according to claim 1 is characterized by: The invention also comprises a conveying assembly (4), wherein the conveying assembly (4) is used for conveying solid and / or fluid to the flow part (18).

6. The sewage treatment system for river ecological management according to claim 5 is characterized by: The conveying assembly (4) comprises a pulverizer (41), wherein the pulverizer (41) is used to pulverize solids, and a discharge end of the pulverizer (41) is in communication with the flow portion (18).

7. The sewage treatment system for river ecological management according to claim 5 is characterized by: The conveying component (4) further comprises a gas pump (42), wherein the gas pump (42) is in communication with the flow portion (18), and the gas pump (42) is used to convey gas to the flow portion (18).

8. The sewage treatment system for river ecological management according to claim 1 is characterized by: The pipeline assembly (1) further comprises a first valve (15), the first valve (15) being detachably arranged at one end of the first water pipe (11) close to the first water pump (21), the first valve (15) being connected to the first water pipe (11), the second water pipe (12) and the first water pump (21), and the first valve (15) being used to restrict fluid from entering the first water pump (21) from the first water pipe (11) and / or the second water pipe (12).

9. The sewage treatment system for river ecological management according to claim 4 is characterized by: The pipeline assembly (1) further comprises a second valve (16), wherein the second valve (16) is detachably arranged at one end of the first water pipe (11) close to the third water pump (32), the second valve (16) is connected to the flow portion (18) and the third water pump (32), and the second valve (16) is used to limit the fluid from the third water pump (32) to enter the flow portion (18).

10. The sewage treatment system for river ecological management according to claim 3 is characterized by: The pipeline assembly (1) is further provided with a third valve (17), and the third valve (17) is detachably arranged at one end of the second water pipe (12) close to the second water pump (31). The third valve (17) is connected to the second water pipe (12) and the second water pump (31), and the third valve (17) is used to limit the fluid from the second water pump (31) to enter the second water pipe (12).