Biological filter for water ecological restoration

Abstract

The utility model provides a biological filter for water ecological restoration, which relates to the technical field of sewage treatment and comprises a first filter, a first filler structure, a second filler structure, a second filter, a communicating groove, a partition plate, a buffer tank, a sewage treatment component, a delivery pump and a return pipe. According to the biological filter, the second filter body is communicated with the first filter body, when much sewage exists in the first filter body, part of the sewage enters the second filter body, the sewage is jointly treated through the first filler layers in the first filter body and the second filler layers in the second filter body, and therefore the purification speed of the biological filter can be increased; a buffer tank and an overflow tank are arranged, so that part of the sewage can enter the buffer tank for temporary storage, the condition that the sewage overflows from the filter tank I and the filter tank II is avoided, and the sewage entering the buffer tank is pretreated through a sewage treatment assembly, so that the subsequent sewage treatment effect is better.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a biological filter for water ecological restoration. Background Technology

[0002] Aquatic ecosystem restoration refers to the process of improving and restoring the structure and function of polluted or damaged aquatic ecosystems through physical, chemical, or biological methods, aiming to reduce water pollution levels and improve water quality and aquatic biodiversity. Biofilters, as an artificial biological treatment technology developed based on the principle of soil self-purification, are widely used in wastewater treatment within aquatic ecosystem restoration due to their efficient and stable wastewater treatment capabilities.

[0003] Biological filters are biological treatment structures made of fillers such as gravel and plastic products. Wastewater comes into intermittent contact with the microbial film growing on the surface of the fillers, thus purifying the wastewater. Although they can meet the purification needs of wastewater, the size of biological filters is specific, which makes the purification rate of wastewater relatively constant. When too much wastewater enters the biological filter and exceeds its purification capacity, the wastewater will overflow from the inside of the biological filter, which will have a certain impact on the surrounding environment. Therefore, a biological filter for water ecological restoration is needed to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a biological filter for water ecological restoration, aiming to solve the problems in the existing technology.

[0005] To achieve the above objectives, one embodiment of this utility model provides a biological filter for aquatic ecological restoration, comprising a filter tank one, a first packing structure, a second packing structure, a filter tank two, a connecting channel, a baffle plate, a buffer tank, a wastewater treatment component, a transfer pump, and a return pipe. The filter tank two is connected to the filter tank one. Multiple first packing structures are movably installed inside the filter tank one. Multiple second packing structures are also movably installed inside the filter tank two. Both the first and second packing structures are arranged along the depth direction of the filter tank two. The connecting channel... A filter screen is connected to the inner wall of the connecting channel between filter tank 1 and filter tank 2. A partition is installed inside filter tank 2 to divide the interior of filter tank 2 into a wastewater buffer treatment space and a purified water space. The wastewater buffer treatment space is connected to the bottom of filter tank 1. A buffer tank is installed on one side of filter tank 2. Both the buffer tank and the wastewater buffer treatment space are provided with overflow channels. The overflow channels are used to connect the buffer tank and the wastewater buffer treatment space. The wastewater treatment component is connected to the buffer tank. The delivery pump is connected to the buffer tank through a pipeline. The return pipe is connected to the delivery pump and is connected to filter tank 1.

[0006] Preferably, the first packing structure includes a first packing frame, a first permeable hole, a second permeable hole, and a first packing layer. There are multiple first permeable holes, and the multiple first packing frames are all inclined. The multiple first permeable holes are evenly distributed on the bottom side of the first packing frame. There are multiple second permeable holes, and the multiple second permeable holes are evenly distributed on the side of the first packing frame near the second filter tank. The second permeable holes are connected to the connecting groove. The first packing layer is disposed inside the first packing frame.

[0007] Preferably, the second packing structure includes a second packing frame, a third permeable hole, and a second packing layer. There are multiple third permeable holes, which are evenly distributed on the bottom side of the second packing frame. The second packing layer is disposed inside the second packing frame and corresponds to the position of the connecting groove. The top side of the second packing layer is located below the connecting groove.

[0008] Preferably, one side of the filter pool one is provided with a plurality of first sealing through grooves, and the plurality of first sealing through grooves are all connected to the interior of the filter pool one. The first sealing through grooves correspond one-to-one with the first packing frame. One side of the filter pool two is provided with a plurality of second sealing through grooves, and the plurality of second sealing through grooves are all connected to the filter pool two. The second packing frame corresponds one-to-one with the second sealing through grooves.

[0009] Preferably, a connecting structure is provided between the first packing structure and the second packing structure, and the first packing structure, the second packing structure and the connecting structure correspond one-to-one. The connecting structure includes a first sealing plug, a connecting plate, a second sealing plug and a fixing component. The first sealing plug is connected to the first packing frame and can be inserted into the inside of the first sealing groove. The connecting plate is connected to the first sealing plug and the second sealing plug is connected to the connecting plate. The side of the second sealing plug away from the connecting plate is connected to the second packing frame and can be inserted into the inside of the second sealing groove.

[0010] Preferably, the fixing component includes a positioning through hole, a positioning threaded rod, and a fixing nut. The positioning through hole is opened on one side of the connecting plate. Multiple positioning threaded rods are connected to one side of both filter pool one and filter pool two. The fixing nut is connected to the positioning threaded rod by a threaded connection.

[0011] Preferably, the first and second packing frames are both fixedly connected to a support rod on the side away from the connecting plate, and the inner walls of the first and second filter tanks are provided with support holes, and the support rod can be inserted into the support hole.

[0012] Preferably, the wastewater treatment assembly includes an ozone generator and a stirring assembly. The ozone generator is connected to a buffer tank and is used to supply ozone into the interior of the buffer tank. The stirring assembly is installed on the buffer tank and is used to stir the interior of the buffer tank.

[0013] Preferably, the partition is provided with a water passage channel, which is used to connect the sewage buffer treatment space and the purified water space, so that the purified water can enter the interior of the purified water space through the sewage buffer treatment space. The inner wall of the water passage channel is connected with a filter screen two, which is used to prevent impurities from entering the interior of the purified water space. A water pump is provided inside the purified water space.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By connecting filter tank two to filter tank one, when there is a lot of sewage in filter tank one, some sewage enters the interior of filter tank two. The sewage is treated by multiple first packing layers in filter tank one and multiple second packing layers in filter tank two, thereby improving the purification speed of the biological filter. Furthermore, by setting up a buffer tank and an overflow tank, some sewage can enter the buffer tank for temporary storage, preventing sewage from overflowing from filter tank one and filter tank two. The sewage treatment components pre-treat the sewage entering the buffer tank, thereby making the subsequent sewage treatment effect better.

[0016] 2. The connection structure makes the installation and disassembly of the first and second packing structures easier. This also facilitates the replacement of the first and second packing layers when the activity of microorganisms on them decreases, thus ensuring a good purification effect of the first and second packing layers on wastewater. Attached Figure Description

[0017] Figure 1 This is a first-view structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of filter tank one of this utility model;

[0021] Figure 5 This is a first-view structural diagram of the connection structure of this utility model;

[0022] Figure 6This is a second-view structural diagram of the connection structure of this utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the buffer box of this utility model.

[0024] In the diagram: 10. Filter tank one; 11. First packing frame; 12. First permeable hole; 13. Second permeable hole; 14. First packing layer; 15. First sealing groove; 20. Filter tank two; 21. Second packing frame; 22. Third permeable hole; 23. Second packing layer; 24. Second sealing groove; 30. Connecting groove; 31. Filter screen one; 40. Partition plate; 41. Filter screen two; 42. Water pump; 50. Buffer tank; 51. Transfer pump; 52. Return pipe; 53. Ozone generator; 54. Stirring assembly; 60. Connecting structure; 61. First sealing plug; 62. Connecting plate; 63. Second sealing plug; 64. Positioning perforation; 65. Positioning threaded rod; 66. Fixing nut; 70. Support rod; 80. Supporting hole. Detailed Implementation

[0025] The present invention will now be further described with reference to the accompanying drawings.

[0026] like Figures 1 to 7 As shown, a biological filter for water ecological restoration includes a filter pool 10, with a filter pool 20 connected to one side of the filter pool 10. The filter pool 10 and the filter pool 20 are an integral structure. Multiple first packing structures arranged along the depth direction of the filter pool 10 are movably installed inside the filter pool 10. Multiple second packing structures arranged along the depth direction of the filter pool 20 are movably installed inside the filter pool 20. Multiple connecting channels 30 are provided between the filter pool 10 and the filter pool 20, for transporting wastewater from the first packing structures to the second packing structures. Filter screens 31 are installed on the inner walls of each of the multiple connecting channels 30. A partition 40 is provided inside the filter pool 20 to divide the interior of the filter pool 20 into sections. The wastewater buffer treatment space and the purified water space are provided. Filter screen 31 is used to prevent the packing material of the first and second packing structures located inside filter tank 10 from entering the interior of filter tank 20. The wastewater buffer treatment space is connected to the bottom of filter tank 10. A buffer tank 50 is installed on one side of filter tank 20. Both the buffer tank 50 and the wastewater buffer treatment space are provided with overflow channels. The overflow channels are used to connect the buffer tank 50 and the wastewater buffer treatment space. A wastewater treatment component is provided on the buffer tank 50. The wastewater treatment component is used to treat the wastewater entering the buffer tank 50. The buffer tank 50 is connected to a transfer pump 51 through a pipe. The transfer pump 51 is connected to a return pipe 52. The return pipe 52 is connected to filter tank 10.

[0027] The first packing structure includes a first packing frame 11, which is inclined. Several first permeable holes 12 are opened on the bottom side of the first packing frame 11. Several second permeable holes 13 are opened on the side of the first packing frame 11 near the filter tank 20. The several second permeable holes 13 are all connected to the connecting groove 30. A first packing layer 14 is provided inside the first packing frame 11.

[0028] The second packing structure includes a second packing frame 21, with a plurality of third permeable holes 22 on the bottom side of the second packing frame 21, and a second packing layer 23 is provided inside the second packing frame 21.

[0029] The second packing layer 23 is horizontally arranged, and the position of the second packing layer 23 corresponds to that of the connecting channel 30. The top side of the second packing layer 23 is located below the connecting channel 30, so that the sewage flowing out of the connecting channel 30 can be treated by the second packing layer 23.

[0030] A plurality of first sealing grooves 15 are provided on one side of filter pool 10. The plurality of first sealing grooves 15 are connected to the interior of filter pool 10. The first sealing grooves 15 correspond one-to-one with the first packing frame 11. A plurality of second sealing grooves 24 are provided on one side of filter pool 20. The plurality of second sealing grooves 24 are connected to filter pool 20. The second packing frame 21 corresponds one-to-one with the second sealing grooves 24.

[0031] A connecting structure 60 is provided between the first packing structure and the second packing structure. The first packing structure, the second packing structure, and the connecting structure 60 correspond one-to-one. The connecting structure 60 includes a first sealing plug 61 connected to the first packing frame 11. The first sealing plug 61 can be inserted into the first sealing groove 15, ensuring a good seal between the first packing frame 11 and the filter tank 10. A connecting plate 62 is fixedly connected to one side of the first sealing plug 61, and a second sealing plug 61 connected to the second packing frame 21 is fixedly connected to one side of the connecting plate 62. 3. The second sealing plug 63 can be inserted into the inside of the second sealing groove 24. The second sealing plug 63 makes the sealing between the second packing frame 21 and the second filter 20 better. A fixing component is provided between the connecting plate 62, the first filter 10 and the second filter 20. The fixing component includes a positioning hole 64, a positioning threaded rod 65 and a fixing nut 66. The positioning hole 64 is opened on one side of the connecting plate 62. Multiple positioning threaded rods 65 are connected to one side of the first filter 10 and the second filter 20. The fixing nut 66 is connected to the positioning threaded rod 65 by a threaded connection.

[0032] During the installation of the first and second packing structures, the first packing frame 11 passes through the inside of the first sealing groove 15, and the second packing frame 21 passes through the inside of the second sealing groove 24. The first packing frame 11 is fully inserted into the interior of filter tank 10 and fits tightly against the inner wall of filter tank 10. Similarly, the second packing frame 21 is fully inserted into the interior of filter tank 20 and fits tightly against it. At this time, the first sealing plug 61 is engaged with the inside of the first sealing groove 15, and the second sealing plug 63 is engaged with the inside of the second sealing groove 24. The connecting plate 62 fits tightly against both filter tank 10 and filter tank 20. The first sealing groove 15 and the second sealing groove 24 are sealed by the connecting plate 62, the first sealing plug 61 and the second sealing plug 63. The positioning threaded rod 65 passes through the inside of the positioning hole 64. Then, the fixing nut 66 is threadedly connected to the positioning threaded rod 65 and the fixing nut 66 is tightly fitted to the connecting plate 62, thereby fixing the connecting plate 62. This completes the installation of the first packing frame 11 and the second packing frame 21, making the installation of the first packing frame 11 and the second packing frame 21 relatively simple. Similarly, it is easy to remove the first packing frame 11 and the second packing frame 21, thereby facilitating the replacement of the first packing layer 14 and the second packing layer 23.

[0033] It should be noted that the first packing frame 11 is adapted to the internal dimensions of the filter tank 10, which makes the sealing between the first packing frame 11 and the filter tank 10 relatively good. The second packing frame 21 is adapted to the internal dimensions of the filter tank 20, which makes the sealing between the second packing frame 21 and the filter tank 20 relatively good.

[0034] Support rods 70 are fixedly connected to the side of the first packing frame 11 and the second packing frame 21 away from the connecting plate 62. Support holes 80 are opened on the inner walls of the first filter tank 10 and the second filter tank 20. The support rods 70 can be inserted into the support holes 80. The support rods 70 and the support holes 80 are used to ensure the connection stability between the first packing frame 11 and the first filter tank 10 and between the second packing frame 21 and the second filter tank 20.

[0035] After the first packing frame 11 and the second packing frame 21 are fixed, the support rod 70 is inserted into the support hole 80, and the first packing frame 11 and the second packing frame 21 are supported by the support rod 70 and the support hole 80.

[0036] The wastewater treatment assembly includes an ozone generator 53 and a stirring assembly 54 connected to a buffer tank 50. The ozone generator 53 is used to supply ozone into the interior of the buffer tank 50, and the stirring assembly 54 is used to stir the interior of the buffer tank 50, so that the ozone and wastewater are mixed more evenly.

[0037] After the wastewater enters the buffer tank 50, ozone can be added into the buffer tank 50 by the ozone generator 53, and the ozone and wastewater can be mixed by the stirring component 54, so that the mixing effect of ozone and wastewater is better, thus making the wastewater treatment effect better.

[0038] A water passage channel is provided on the partition 40. The water passage channel is used to connect the sewage buffer treatment space and the purified water space, so that the purified water can enter the interior of the purified water space through the sewage buffer treatment space. The inner wall of the water passage channel is connected to the filter screen 41. The filter screen 41 is used to prevent impurities from entering the interior of the purified water space. A water pump 42 is installed inside the purified water space. The water pump 42 is connected to the pipe and can extract the purified water from the interior of the purified water space.

[0039] The working principle is as follows:

[0040] Wastewater enters the interior of filter tank 10, where it circulates among multiple first packing layers 14. The wastewater is treated by these layers. If there is a large volume of wastewater, some enters filter tank 20 through the second permeable hole 13 and connecting channel 30. It is then treated by multiple second packing layers 23 within filter tank 20. If the wastewater level is high, some wastewater will overflow into buffer tank 50. Buffer tank 50 temporarily stores some wastewater, and ozone is introduced into it via ozone generator 53. The wastewater is then agitated by stirring component 54 to ensure uniform mixing. The treated wastewater is then transported back to filter tank 10 via transfer pump 51 and return pipe 52. Here, the wastewater is again treated by passing through the first packing layers 14 and second packing layers 23, resulting in a more effective wastewater treatment.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A biological filter for aquatic ecological restoration, characterized in that: The system includes a first filter (10), a first packing structure, a second packing structure, a second filter (20), a connecting channel (30), a baffle plate (40), a buffer tank (50), a wastewater treatment assembly, a transfer pump (51), and a return pipe (52). The second filter (20) is connected to the first filter (10). There are multiple first packing structures, each movably installed inside the first filter (10). There are also multiple second packing structures, each movably installed inside the second filter (20). Both the first and second packing structures are arranged along the depth direction of the second filter (20). The connecting channel (30) is located between the first filter (10) and the second filter (20). The interior of the connecting channel (30)... A filter screen (31) is connected to the wall. A partition (40) is installed inside the filter pool (20). The partition (40) is used to divide the interior of the filter pool (20) into a sewage buffer treatment space and a purified water space. The sewage buffer treatment space is connected to the bottom of the filter pool (10). A buffer box (50) is installed on one side of the filter pool (20). Both the buffer box (50) and the sewage buffer treatment space are provided with overflow channels. The overflow channels are used to connect the buffer box (50) and the sewage buffer treatment space. The sewage treatment component is connected to the buffer box (50). The delivery pump (51) is connected to the buffer box (50) through a pipe. The return pipe (52) is connected to the delivery pump (51) and is connected to the filter pool (10).

2. A biological filter for aquatic ecological restoration according to claim 1, characterized in that: The first packing structure includes a first packing frame (11), a first permeable hole (12), a second permeable hole (13), and a first packing layer (14). There are multiple first permeable holes (12), and multiple first packing frames (11) are inclined. Multiple first permeable holes (12) are evenly distributed on the bottom side of the first packing frame (11). There are multiple second permeable holes (13), and multiple second permeable holes (13) are evenly distributed on the side of the first packing frame (11) near the filter tank (20). The second permeable holes (13) are connected to the connecting groove (30). The first packing layer (14) is disposed inside the first packing frame (11).

3. A biological filter for aquatic ecological restoration according to claim 2, characterized in that: The second packing structure includes a second packing frame (21), a third permeable hole (22), and a second packing layer (23). There are multiple third permeable holes (22), which are evenly distributed on the bottom side of the second packing frame (21). The second packing layer (23) is located inside the second packing frame (21). The second packing layer (23) corresponds to the position of the connecting groove (30), and the top side of the second packing layer (23) is located below the connecting groove (30).

4. A biological filter for aquatic ecological restoration according to claim 3, characterized in that: The filter pool one (10) has a plurality of first sealing through grooves (15) on one side, and the plurality of first sealing through grooves (15) are connected to the interior of the filter pool one (10). The first sealing through grooves (15) correspond one-to-one with the first packing frame (11). The filter pool two (20) has a plurality of second sealing through grooves (24) on one side, and the plurality of second sealing through grooves (24) are connected to the filter pool two (20). The second packing frame (21) corresponds one-to-one with the second sealing through grooves (24).

5. A biological filter for aquatic ecological restoration according to claim 4, characterized in that: A connecting structure (60) is provided between the first packing structure and the second packing structure. The first packing structure, the second packing structure and the connecting structure (60) correspond one-to-one. The connecting structure (60) includes a first sealing plug (61), a connecting plate (62), a second sealing plug (63) and a fixing component. The first sealing plug (61) is connected to the first packing frame (11). The first sealing plug (61) can be inserted into the inside of the first sealing groove (15). The connecting plate (62) is connected to the first sealing plug (61). The second sealing plug (63) is connected to the connecting plate (62). The side of the second sealing plug (63) away from the connecting plate (62) is connected to the second packing frame (21). The second sealing plug (63) can be inserted into the inside of the second sealing groove (24).

6. A biological filter for aquatic ecological restoration according to claim 5, characterized in that: The fixing component includes a positioning through hole (64), a positioning threaded rod (65), and a fixing nut (66). The positioning through hole (64) is opened on one side of the connecting plate (62). Multiple positioning threaded rods (65) are connected to one side of both the first filter (10) and the second filter (20). The fixing nut (66) is connected to the positioning threaded rod (65) by a threaded connection.

7. A biological filter for aquatic ecological restoration according to claim 5, characterized in that: The first packing frame (11) and the second packing frame (21) are both fixedly connected to a support rod (70) on the side away from the connecting plate (62). The inner walls of the first filter pool (10) and the second filter pool (20) are provided with support holes (80), and the support rod (70) can be inserted into the support hole (80).

8. A biological filter for aquatic ecological restoration according to claim 7, characterized in that: The wastewater treatment assembly includes an ozone generator (53) and a stirring assembly (54). The ozone generator (53) is connected to a buffer tank (50) and is used to supply ozone into the interior of the buffer tank (50). The stirring assembly (54) is installed on the buffer tank (50) and is used to stir the interior of the buffer tank (50).

9. A biological filter for aquatic ecological restoration according to claim 8, characterized in that: A water passage groove is provided on the partition (40). The water passage groove is used to connect the sewage buffer treatment space and the purified water space, so that the purified water can enter the interior of the purified water space through the sewage buffer treatment space. A filter screen (41) is connected to the inner wall of the water passage groove. The filter screen (41) is used to prevent impurities from entering the interior of the purified water space. A water pump (42) is provided inside the purified water space.

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