River channel filtering device

Abstract

The utility model discloses a riverway filtering device which comprises a pressure release well, a filtering bin, a precipitation bin and a composite filtering bin, the pressure release well is communicated with the filtering bin, the filtering bin is respectively communicated with the composite filtering bin and the precipitation bin, and the precipitation bin is arranged below the filtering bin. According to the riverway filtering device provided by the utility model, sewage in a riverway is firstly filtered through the filtering grating and the filtering bin in sequence, fine sludge can be directly collected in the precipitation bin and is convenient to discharge in the later stage, and the filtered water enters the composite filtering bin to be finely filtered for multiple times, so that organic matters, peculiar smell and the like in the sewage can be further removed; the purified water filtered for multiple times can be directly discharged, so that the environment is not polluted.

Description

Technical Field

[0001] This utility model belongs to the field of river sewage treatment technology, specifically relating to a river filtration device. Background Technology

[0002] Traditional technologies for filtering sewage in rivers are mainly based on physical methods, including direct interventions such as dredging bottom sediment to remove pollutants, mechanical algae removal to control algae growth, and flushing away suspended solids with water. However, the filtration effect of these methods is unsatisfactory and needs further improvement. Utility Model Content

[0003] To address the technical problems existing in the prior art, the purpose of this utility model is to provide a river filtration device.

[0004] To achieve the above objectives and technical effects, the technical solution adopted by this utility model is as follows:

[0005] A river filtration device includes a pressure relief well, a filter chamber, a sedimentation chamber, and a composite filter chamber. The pressure relief well is connected to the filter chamber, and a sedimentation chamber is disposed below the filter chamber. The filter chamber is connected to both the sedimentation chamber and the composite filter chamber.

[0006] Furthermore, the filter chamber includes a physical filter chamber and a biological filter chamber. The biological filter chamber is located below the physical filter chamber and the two are connected. The inlet of the physical filter chamber is connected to the pressure relief well, and the outlet of the physical filter chamber is connected to the composite filter chamber.

[0007] Furthermore, an outlet pipe and an inlet pipe are respectively provided on the left and right sides of the pressure relief well. The inlet of the physical filter chamber is connected to the pressure relief well through the outlet pipe, and a grid is provided at the outlet of the physical filter chamber.

[0008] Furthermore, at least one physical filter membrane is arranged sequentially from top to bottom in the physical filtration chamber, and at least one biological filter membrane is arranged sequentially from top to bottom in the biological filtration chamber.

[0009] Furthermore, the sedimentation tank is connected to the gate well via a first sewage discharge pipe, and the gate well is connected to the sewage well via a second sewage discharge pipe.

[0010] Furthermore, the bottom of the sedimentation tank has a slope that slopes downwards from right to left.

[0011] Furthermore, the composite filtration chamber includes a riverbed sediment filtration layer, a first particle filtration layer, a second particle filtration layer, a third particle filtration layer, and an ecological riverbed arranged sequentially along the water flow direction.

[0012] Furthermore, the first particle filter layer is a quartz sand filter layer with a pore size of 0.5-1.5 mm.

[0013] Furthermore, the second particulate filter layer is an activated carbon filter layer with a specific surface area of ​​600-1500 m². 2 / g.

[0014] Furthermore, the third particle filter layer is a PP cotton filter layer with a pore size of 2-7μm.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model discloses a river filtration device. Sewage in the river first passes through a filter screen and a filter chamber in sequence for filtration. Fine sludge can be directly collected in the sedimentation chamber for easy discharge later. The filtered water enters the composite filter chamber for multiple fine filtrations, which can further remove organic matter, odors and other substances from the sewage, thereby further improving the water quality. The purified water after multiple filtrations can be discharged directly without polluting the environment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the pressure relief well, filter chamber, and sedimentation chamber of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the grille of this utility model;

[0019] Figure 3 This is a schematic diagram of the composite filter chamber of this utility model. Detailed Implementation

[0020] The present invention will now be described in detail so that its advantages and features can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0021] The following provides a brief overview of one or more aspects to offer a basic understanding of them. This overview is not an exhaustive summary of all conceived aspects, nor is it intended to identify key or decisive elements of all aspects, nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form to prepare for the more detailed descriptions that follow.

[0022] like Figure 1-3 As shown, a river filtration device includes a pressure relief well 1, a filter chamber 2, a sedimentation chamber 3, and a composite filter chamber 4. The pressure relief well 1 is connected to the filter chamber 2, and the sedimentation chamber 3 is disposed below the filter chamber 2. The filter chamber 2 is connected to both the sedimentation chamber 3 and the composite filter chamber 4.

[0023] In some embodiments, an outlet pipe 5 and an inlet pipe 6 are respectively provided on the left and right sides of the pressure relief well 1, and a filter screen 7 is provided inside the pressure relief well 1. The filter screen 7 can initially remove floating objects, suspended solids and other substances from the sewage.

[0024] In some embodiments, the filter chamber 2 includes a physical filter chamber 8 and a biological filter chamber 9. The biological filter chamber 9 is located below the physical filter chamber 8 and the two are connected. The right side of the physical filter chamber 8 is the inlet, which is connected to the pressure relief well 1 through the outlet pipe 5. The left side of the physical filter chamber 8 is the outlet, and a screen 81 is installed at the outlet. The outlet of the physical filter chamber 8 is connected to the composite filter chamber 4 through a transmission pipe. A solenoid valve is installed on the transmission pipe. The solenoid valve is connected to a conventional controller (such as a microcontroller or PCL). The start of the solenoid valve is controlled by the controller. When the solenoid valve is closed, the physical filter chamber 8 cannot be connected to the composite filter chamber 4 through the transmission pipe. That is, the filter chamber 2 and the composite filter chamber 4 are not connected. The connection between the filter chamber 2 and the composite filter chamber 4 can only be achieved when the solenoid valve is open. This design helps to filter the sewage in the filter chamber 2 as much as possible through the physical filter chamber 8 and the biological filter chamber 9 first. Fine sludge, pollutants, etc. can fall down and be collected in the sedimentation chamber 3.

[0025] In some more specific embodiments, at least one physical filter membrane is arranged sequentially from top to bottom in the physical filter chamber 8, and at least one biological filter membrane is arranged sequentially from top to bottom in the biological filter chamber 9.

[0026] In some more specific implementations, the pore size of the physical filtration membrane is larger than that of the biological filtration membrane.

[0027] In some more specific embodiments, the physical filter membrane is a composite layer of commercially available filter cotton and fiber ball filter media.

[0028] In some more specific embodiments, the biofiltration membrane is an existing commercially available microbial filtration membrane.

[0029] In some embodiments, the bottom of the sedimentation tank 3 has a downward sloping ramp 10 from right to left, with the ramp 10 forming an angle of 20°-40° with the horizontal direction. The sedimentation tank 3 is connected to the gate well 12 via a first sewage discharge pipe 11, and the gate well 12 is connected to the sewage well 14 via a second sewage discharge pipe 13. Gates 15 are respectively installed at the inlet and outlet of the gate well 12. When the gate 15 at the right inlet of the gate well 12 is opened, the sedimentation tank 3 is connected to the gate well 12. When the gate 15 at the left outlet of the gate well 12 is opened, the gate well 12 is connected to the sewage well 14, enabling periodic sewage discharge.

[0030] In some embodiments, the composite filter chamber 4 includes a riverbed sediment filter layer 16, a first particle filter layer 17, a second particle filter layer 18, a third particle filter layer 19, and an ecological riverbed 20 arranged sequentially along the water flow direction. The riverbed sediment filter layer 16, the first particle filter layer 17, the second particle filter layer 18, the third particle filter layer 19, and the ecological riverbed 20 are all conventional materials and can be purchased on the market.

[0031] In some more specific embodiments, the original sediment filter layer 16 of the riverbed can initially filter out some organic matter, suspended matter, etc., and lotus flowers can be planted on the original sediment filter layer 16 of the riverbed according to actual needs.

[0032] In some more specific embodiments, the pore sizes of the first particle filter layer 17, the second particle filter layer 18, and the third particle filter layer 19 become progressively smaller, all smaller than the pore sizes of the physical filter membrane and the biological filter membrane, which facilitates fine filtration.

[0033] In some more specific embodiments, the first particle filter layer 17 is a quartz sand filter layer with a pore size of 0.5-1.5 mm, and aquatic plants can be planted on the first particle filter layer 10 according to actual needs.

[0034] In some more specific embodiments, the second particulate filter layer 18 is an activated carbon filter layer with a specific surface area of ​​600-1500 m². 2 / g can adsorb odors, organic matter, etc. in sewage, and further improve water quality.

[0035] In some more specific embodiments, the third particle filter layer 19 is a PP cotton filter layer with a pore size of 2-7μm, which can trap tiny particles and further improve the quality of the effluent.

[0036] In some more specific implementations, aquatic plants may be planted on the ecological riverbed 20, depending on actual needs.

[0037] In some more specific embodiments, water-repellent walls 21 may or may not be provided between the original riverbed sediment filter layer 16 and the first particle filter layer 17, between the first particle filter layer 17 and the second particle filter layer 18, between the second particle filter layer 18 and the third particle filter layer 19, and between the third particle filter layer 19 and the ecological riverbed 20. The water-repellent walls 21 may or may not be provided depending on actual needs.

[0038] The working principle of this utility model is as follows:

[0039] Sewage from the river enters the pressure relief well 1 through the inlet pipe 6. Since the filter screen 7 is located downstream of the inlet pipe 6 and upstream of the outlet pipe 5, the sewage in the pressure relief well 1 is first filtered through the filter screen 7 to remove suspended solids and floating matter. Then, it flows through the outlet pipe 5 into the filter chamber 2, where it is filtered through both physical and biological filter membranes. Large particles are trapped on these membranes, while fine sludge falls into the sedimentation chamber 3 under gravity. The sludge slides down the slope 10 of the sedimentation chamber 3 from right to left, accumulating in the lower left corner. When there is enough sludge and discharge is required, the solenoid valve closes, disconnecting the filter chamber 2 from the composite filter chamber 4, and the inlet and outlet gates 15 of the gate well 12 are opened. The sewage pump in the gate well 12 extracts sludge from the sedimentation tank 3 and transmits it to the sewage well 14 via the first sewage pipe 11 and the second sewage pipe 13. After the sewage discharge is completed, the sewage pump and the inlet and outlet gates 15 of the gate well 12 can be closed, and the solenoid valve can be opened to connect the filter tank 2 and the composite filter tank 4. The water filtered by the physical filter tank 8 and the biological filter tank 9 will flow out from the grid 81 on the left side of the physical filter tank 8 (drawn by the water pump) and then flow to the composite filter tank 4. The water flowing out from the outlet on the left side of the physical filter tank 8 enters the composite filter tank 4 and flows through the original bottom sediment filter layer 16, the first particle filter layer 17, the second particle filter layer 18, the third particle filter layer 19 and the ecological riverbed 20 for filtration. The filtered clean water can then be discharged from the right side of the ecological riverbed 20.

[0040] Example 1

[0041] like Figure 1-3 As shown, a river filtration device includes a pressure relief well 1, a filter chamber 2, a sedimentation chamber 3, and a composite filter chamber 4. The pressure relief well 1 is connected to the filter chamber 2, and the sedimentation chamber 3 is disposed below the filter chamber 2. The filter chamber 2 is connected to both the sedimentation chamber 3 and the composite filter chamber 4.

[0042] In this embodiment, an outlet pipe 5 and an inlet pipe 6 are respectively provided on the left and right sides of the pressure relief well 1. A filter screen 7 is provided inside the pressure relief well 1. The filter screen 7 can initially remove floating objects, suspended solids and other substances from the sewage.

[0043] Filter chamber 2 includes a physical filtration chamber 8 and a biological filtration chamber 9. The biological filtration chamber 9 is located below the physical filtration chamber 8 and the two are connected. The right side of the physical filtration chamber 8 is the inlet, which is connected to the pressure relief well 1 via the outlet pipe 5. The left side of the physical filtration chamber 8 is the outlet, and a screen 81 is installed at the outlet. The outlet of the physical filtration chamber 8 is connected to the composite filtration chamber 4 via a transmission pipe. A solenoid valve is installed on the transmission pipe and is connected to a conventional controller (microcontroller). The activation of the solenoid valve is controlled by the controller. When the solenoid valve is closed, the physical filtration chamber 8 cannot be connected to the composite filtration chamber 4 via the transmission pipe. That is, the filter chamber 2 and the composite filtration chamber 4 are not connected. The connection between the filter chamber 2 and the composite filtration chamber 4 can only be achieved when the solenoid valve is open. This design helps to filter the sewage in the filter chamber 2 as much as possible through the physical filtration chamber 8 and the biological filtration chamber 9 first. Fine sludge, pollutants, etc. can fall down and be collected in the sedimentation chamber 3.

[0044] The physical filtration chamber 8 has two layers of physical filtration membrane arranged from top to bottom. The physical filtration membrane is a composite layer of commercially available filter cotton and fiber ball filter media. The biological filtration chamber 9 has two layers of biological filtration membrane arranged from top to bottom. The biological filtration membrane is a commercially available microbial filtration membrane. The pore size of the physical filtration membrane is larger than that of the biological filtration membrane.

[0045] The sedimentation tank 3 has a downward sloping ramp 10 at its bottom, with the ramp 10 forming an angle of 30° with the horizontal direction. The sedimentation tank 3 is connected to the gate well 12 via the first sewage discharge pipe 11. The gate well 12 is connected to the sewage well 14 via the second sewage discharge pipe 13. Gates 15 are installed at the inlet and outlet of the gate well 12. When the gate 15 at the right inlet of the gate well 12 is opened, the sedimentation tank 3 is connected to the gate well 12. When the gate 15 at the left outlet of the gate well 12 is opened, the gate well 12 is connected to the sewage well 14, enabling periodic sewage discharge.

[0046] The composite filter chamber 4 includes a riverbed sediment filter layer 16, a first particle filter layer 17, a second particle filter layer 18, a third particle filter layer 19, and an ecological riverbed 20 arranged sequentially along the water flow direction. The riverbed sediment filter layer 16, the first particle filter layer 17, the second particle filter layer 18, the third particle filter layer 19, and the ecological riverbed 20 are all conventional materials that can be purchased on the market.

[0047] The original sediment filter layer 16 of the riverbed can initially filter out some organic matter, suspended solids, etc. Lotus flowers can be planted on the original sediment filter layer 16 of the riverbed according to actual needs.

[0048] The pore sizes of the first particle filter layer 17, the second particle filter layer 18, and the third particle filter layer 19 decrease progressively, all being smaller than the pore sizes of the physical filter membrane and the biological filter membrane, which facilitates fine filtration.

[0049] The first particle filter layer 17 is a quartz sand filter layer with a pore size of 1.5mm. Aquatic plants can be planted on the first particle filter layer 10 according to actual needs.

[0050] The second particulate filter layer 18 is an activated carbon filter layer with a pore size of 0.2 mm and a specific surface area of ​​1500 m². 2 / g can adsorb odors, organic matter, etc. in sewage, and further improve water quality.

[0051] The third particle filter layer 19 is a PP cotton filter layer with a pore size of 5μm, which can trap tiny particles and further improve the quality of the effluent.

[0052] Whether or not to plant aquatic plants on the ecological riverbed 20 can be chosen according to actual needs.

[0053] Water-turning walls 21 are respectively set between the original sediment filter layer 16 and the first particle filter layer 17, between the first particle filter layer 17 and the second particle filter layer 18, between the second particle filter layer 18 and the third particle filter layer 19, and between the third particle filter layer 19 and the ecological riverbed 20.

[0054] The working principle of this embodiment is as follows:

[0055] Sewage from the river enters the pressure relief well 1 through the inlet pipe 6. Since the filter screen 7 is located downstream of the inlet pipe 6 and upstream of the outlet pipe 5, the sewage in the pressure relief well 1 is first filtered through the filter screen 7 to remove suspended solids and floating matter. Then, it flows through the outlet pipe 5 into the filter chamber 2, where it is filtered through both physical and biological filter membranes. Large particles are trapped on these membranes, while fine sludge falls into the sedimentation chamber 3 under gravity. The sludge slides down the slope 10 of the sedimentation chamber 3 from right to left, accumulating in the lower left corner. When there is enough sludge and discharge is required, the solenoid valve closes, disconnecting the filter chamber 2 from the composite filter chamber 4. The inlet and outlet gates 15 of the gate well 12 are then opened, activating the gate valve. The sewage pump in gate well 12 extracts sludge from sedimentation chamber 3 and transmits it to sewage well 14 via first sewage pipe 11 and second sewage pipe 13. After the sewage discharge is completed, the sewage pump and the inlet and outlet gates 15 of gate well 12 can be closed, and the solenoid valve can be opened to connect filter chamber 2 and composite filter chamber 4. The water filtered by physical filter chamber 8 and biological filter chamber 9 will flow out from the grid 81 on the left side of physical filter chamber 8 under the action of the water pump and flow to composite filter chamber 4 through the transmission pipe. The water flowing out from the outlet on the left side of physical filter chamber 8 enters composite filter chamber 4 and flows through the original bottom sediment filter layer 16, the first particle filter layer 17, the second particle filter layer 18, the third particle filter layer 19 and the ecological riverbed 20 for filtration. The filtered clean water can be discharged from the right side of ecological riverbed 20.

[0056] The parts or structures not specifically described in this utility model can be made using existing technology or existing products, and will not be elaborated here.

[0057] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A river filtration device, characterized in that, It includes a pressure relief well, a filter chamber, a sedimentation chamber, and a composite filter chamber. The pressure relief well is connected to the filter chamber, and a sedimentation chamber is located below the filter chamber. The filter chamber is connected to both the sedimentation chamber and the composite filter chamber.

2. The river filtration device according to claim 1, characterized in that, The filter chamber includes a physical filter chamber and a biological filter chamber. The biological filter chamber is located below the physical filter chamber and the two are connected. The inlet of the physical filter chamber is connected to the pressure relief well, and the outlet of the physical filter chamber is connected to the composite filter chamber.

3. A river filtration device according to claim 2, characterized in that, The pressure relief well is provided with an outlet pipe and an inlet pipe on its left and right sides respectively. The inlet of the physical filter chamber is connected to the pressure relief well through the outlet pipe. A grid is provided at the outlet of the physical filter chamber.

4. A river filtration device according to claim 2, characterized in that, The physical filtration chamber contains at least one layer of physical filtration membrane arranged sequentially from top to bottom, and the biological filtration chamber contains at least one layer of biological filtration membrane arranged sequentially from top to bottom.

5. A river filtration device according to claim 1, characterized in that, The sedimentation tank is connected to the gate well via a first sewage discharge pipe, and the gate well is connected to the sewage well via a second sewage discharge pipe.

6. A river filtration device according to claim 1, characterized in that, The bottom of the sedimentation tank has a downward slope from right to left.

7. A river filtration device according to claim 1, characterized in that, The composite filtration chamber includes a riverbed sediment filtration layer, a first particle filtration layer, a second particle filtration layer, a third particle filtration layer, and an ecological riverbed arranged sequentially along the water flow direction.

8. A river filtration device according to claim 7, characterized in that, The first particle filter layer is a quartz sand filter layer with a pore size of 0.5-1.5mm.

9. A river filtration device according to claim 7, characterized in that, The second particulate filter layer is an activated carbon filter layer with a specific surface area of ​​600-1500 m². 2 / g.

10. A river filtration device according to claim 7, characterized in that, The third particle filter layer is a PP cotton filter layer with a pore size of 2-7μm.

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