A detachable modular ecological dam for water bidirectional purification and backwash maintenance-free

Abstract

The present invention relates to the field of ecological technology, and specifically to a detachable modular ecological dam for bidirectional purification and backwashing of water bodies without maintenance. The ecological dam is characterized in that the ecological dam is composed of a plurality of processing modules, and the processing modules include, from front to back, a first medium-efficiency filtration processing module, a first high-efficiency filtration processing module, a high-efficiency reoxygenation biodegradation processing module, a second high-efficiency filtration processing module, and a second medium-efficiency filtration processing module. Compared with the prior art, it has the following beneficial effects: 1. The ecological dam is spliced ​​by a single processing module, which is easy to disassemble and install, and meets the needs of flood control, flood discharge, and emergency rescue ships; 2. The supporting structure ensures the stability of the ecological dam and extends the service life of the ecological dam; 3. It meets the requirements of bidirectional water flow treatment in tidal rivers, backwash purification design, reduces maintenance times, and basically achieves maintenance-free; 4. It is equipped with multi-level physical and biological treatment modules to improve purification efficiency.

Description

Technical Field

[0001] The invention relates to the field of ecological technology, in particular to a detachable module ecological dam capable of bidirectional water purification, backwashing and maintenance-free. Background Art

[0002] In recent years, affected by modern agriculture, urban development and human activities, a large amount of agricultural non-point source pollution and some factory sewage and domestic sewage have been discharged directly into water bodies without treatment, and finally merged into rivers; domestic garbage and construction waste have been directly discarded into rivers, causing serious pollution of river water and deterioration of water quality, which has had a great impact on the ecological environment on which human beings depend for survival.

[0003] Therefore, a detachable modular ecological dam with bidirectional water purification and backwash maintenance-free is designed, which can purify river water quality in both directions. The backwash purification design is used to reduce the number of maintenance times, basically achieve maintenance-free, and extend the service life. The single treatment module is detachable and easy to install, which meets the passage needs of flood control, flood discharge, and emergency rescue ships. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a detachable modular ecological dam with bidirectional water purification treatment and backwash maintenance-free, which can purify river water quality in both directions, utilizes the backwash purification design, reduces the number of maintenance times, basically achieves maintenance-free, and extends the service life. In addition, a single treatment module is detachable and easy to install, which meets the passage needs of flood control, flood discharge, and emergency rescue ships.

[0005] To achieve the above-mentioned purpose, a detachable modular ecological dam with bidirectional water purification treatment and backwash maintenance-free is designed, including an ecological dam, characterized in that: the ecological dam is spliced ​​by a number of processing modules, and the processing modules include, from front to back, a first medium-efficiency filtration processing module, a first high-efficiency filtration processing module, a high-efficiency reoxygenation biodegradation processing module, a second high-efficiency filtration processing module, and a second medium-efficiency filtration processing module.

[0006] The first medium-efficiency filtering processing module and the first high-efficiency filtering processing module are respectively provided with a plurality of first net bags and second net bags, the tops of the first net bags and the second net bags are connected to one end of a hook, and the other end of the hook is connected to a traction rope.

[0007] The first net bag can be filled with one or more fillers selected from ceramsite and volcanic rock, and the second net bag can be filled with one or more fillers selected from activated carbon and vermiculite.

[0008] The structure of the second medium-efficiency filtering processing module is the same as that of the first medium-efficiency filtering processing module, and the structure of the second high-efficiency filtering processing module is the same as that of the first high-efficiency filtering processing module.

[0009] The high-efficiency reoxygenation biodegradation treatment module is provided with an aeration pipe, artificial water plants, and an electrode plate. One end of the aeration pipe is connected to an aerator, and the other end of the aeration pipe is located in the high-efficiency reoxygenation biodegradation treatment module. Artificial water plants and an electrode plate are respectively provided on one side of the aeration pipe.

[0010] The front and rear sides of the processing module are respectively provided with a first coarse filter and a second coarse filter.

[0011] A supporting structure is provided at the bottom of the ecological dam, and the supporting structure includes a fence, a rectangular frame, and a pile foundation. A fence is provided at the periphery of the processing module, and the left and right ends of the fence are connected to the rectangular frame. A pile foundation is provided at the bottom of the fence, one end of the pile foundation is connected to one end of an iron chain, and the other end of the iron chain is connected to the processing module.

[0012] The front and rear sides of the ecological dam are both provided with a water surface floating object collection device, and the water surface floating object collection device includes a floating object shielding shutter, a water surface floating object collection guide rod, a floating body, an inner guide plate for collecting water surface floating objects, an outer guide plate for collecting water surface floating objects, and a collection basket. The upper parts of the front and rear sides of the ecological dam are both connected to one end of the floating object shielding shutter frame through a hinge, the other end of the floating object shielding shutter frame is connected to one end of the water surface floating object collection guide rod, the other end of the water surface floating object collection guide rod is connected to the floating body, the inner side of the water surface floating object collection guide rod is connected to one end of the water surface floating object collection outer guide plate, the other end of the water surface floating object collection outer guide plate is connected to the water surface floating object collection inner guide plate, and the left and right ends of the water surface floating object collection inner guide plate are respectively provided with collection baskets.

[0013] The structure of the floating object shielding louver frame is a rectangular frame structure, a trapezoidal frame structure or a triangular frame structure, the shape of the opening of the collection basket is a trumpet shape, and the structure of the inner guide plate for collecting floating objects on the water surface is a V-shaped structure.

[0014] The top of the ecological dam is provided with a cover plate, and the longitudinal length of the ecological dam is 2-5m.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The ecological dam is composed of individual processing modules, which are easy to disassemble and install, and meet the needs of flood control, flood discharge, and emergency rescue ships;

[0017] 2. The supporting structure ensures the stability of the ecological dam and extends its service life;

[0018] 3. Meet the two-way water flow treatment of tidal rivers, require backwash purification design, reduce maintenance times, and basically achieve maintenance-free;

[0019] 4. Equipped with multi-level physical and biological treatment modules to improve purification efficiency;

[0020] 5. The floating object collection device can collect floating objects on the water surface, which is convenient for unified treatment and reduces workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a partial enlarged view of the present invention.

[0023] Figure 3 It is a structural schematic diagram of the processing module of the present invention.

[0024] Figure 4 It is a schematic diagram of the structure of the processing module and the first coarse-effect filter screen and the second coarse-effect filter screen of the present invention.

[0025] Figure 5 It is a side view of the present invention in a normal water level state.

[0026] Figure 6 It is a side view of the present invention in a high water level state.

[0027] Figure 7 It is a schematic diagram of the structure of the collecting basket of the present invention.

[0028] Figure 8 It is the front view of the collecting basket of the present invention.

[0029] Fig. 9 It is a side view of the collecting basket of the present invention.

[0030] See also Figures 1 to 9 , wherein 1 is a first medium-efficiency filtration treatment module, 2 is a first high-efficiency filtration treatment module, 3 is a high-efficiency reoxygenation biodegradation treatment module, 4 is a second high-efficiency filtration treatment module, 5 is a second medium-efficiency filtration treatment module, 6 is a first net bag, 7 is a second net bag, 8 is an aeration pipe, 9 is artificial aquatic plants, 10 is an electrode plate, 11 is an aerator, 12 is a fence, 13 is a rectangular frame, 14 is a pile foundation, 15 is an iron chain, 16 is a floating object shielding shutter, 17 is a water surface floating object collection guide rod, 18 is a floating body, 19 is a water surface floating object collection outer guide plate, 20 is a water surface floating object collection inner guide plate, 21 is a collection basket, 22 is a cover plate, 23 is a hook, 24 is a traction rope, 25 is a guide interception plate, 26 is a hole, 27 is a treatment module, 28 is a first coarse-efficiency filter net, and 29 is a second coarse-efficiency filter net. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings.

[0032] like Figures 1 to 9As shown, the ecological dam is composed of several processing modules 27, and the processing modules 27 include, from front to back, a first medium-efficiency filtration processing module 1, a first high-efficiency filtration processing module 2, a high-efficiency reoxygenation biodegradation processing module 3, a second high-efficiency filtration processing module 4, and a second medium-efficiency filtration processing module 5.

[0033] A plurality of first net bags 6 and second net bags 7 are respectively disposed in the first medium-efficiency filtering processing module 1 and the first high-efficiency filtering processing module 2 . The tops of the first net bags 6 and the second net bags 7 are connected to one end of a hook 23 , and the other end of the hook 23 is connected to a traction rope 24 .

[0034] The first net bag 6 can be filled with one or more fillers selected from ceramsite and volcanic rock, and the second net bag 7 can be filled with one or more fillers selected from activated carbon and vermiculite.

[0035] The structure of the second medium-efficiency filtering processing module 5 is the same as that of the first medium-efficiency filtering processing module 1 , and the structure of the second high-efficiency filtering processing module 4 is the same as that of the first high-efficiency filtering processing module 2 .

[0036] An aeration pipe 8, artificial aquatic plants 9 and an electrode plate 10 are provided in the high-efficiency reoxygenation biodegradation treatment module 3. One end of the aeration pipe 8 is connected to an aerator 11, and the other end of the aeration pipe 8 is located in the high-efficiency reoxygenation biodegradation treatment module 3. Artificial aquatic plants 9 and an electrode plate 10 are provided on one side of the aeration pipe 8.

[0037] A first coarse filter 28 and a second coarse filter 29 are respectively disposed on the front and rear sides of the processing module 27 .

[0038] A supporting structure is provided at the bottom of the ecological dam, and the supporting structure includes a fence 12, a rectangular frame 13, and a pile foundation 14. A fence 12 is provided outside the processing module 27, and the left and right ends of the fence 12 are connected to the rectangular frame 13. A pile foundation 14 is provided at the bottom of the fence 12, and one end of the pile foundation 14 is connected to one end of an iron chain 15, and the other end of the iron chain 15 is connected to the processing module 27.

[0039] Both the front and rear sides of the ecological dam are provided with a water surface floating object collection device, which includes a floating object shielding shutter 16, a water surface floating object collecting guide rod 17, a floating body 18, an outer guide plate 19 for collecting water surface floating objects, an inner guide plate 20 for collecting water surface floating objects, and a collecting basket 21. The upper parts of both the front and rear sides of the ecological dam are connected to one end of the floating object shielding shutter frame 16 through a hinge, the other end of the floating object shielding shutter frame 16 is connected to one end of the water surface floating object collecting guide rod 17, the other end of the water surface floating object collecting guide rod 17 is connected to the floating body 18, the inner side of the water surface floating object collecting guide rod 17 is connected to one end of the water surface floating object collecting outer guide plate 19, the other end of the water surface floating object collecting outer guide plate 19 is connected to the water surface floating object collecting inner guide plate 20, and the left and right ends of the water surface floating object collecting inner guide plate 20 are respectively provided with a collecting basket 21.

[0040] The structure of the floating object shielding louver frame 16 is a rectangular frame structure, a trapezoidal frame structure or a triangular frame structure, the shape of the opening of the collecting basket 21 is a trumpet shape, and the structure of the inner guide plate 20 for collecting floating objects on the water surface is a V-shaped structure.

[0041] A cover plate 22 is provided on the top of the ecological dam. The longitudinal length of the ecological dam is 2-5 m, and the transverse length of the ecological dam is determined according to the width of the river channel or the intercepted water body.

[0042] When used specifically, the aerator 11 may be a micro-nano aerator. The first coarse filter 28 and the second coarse filter 29 may be filters with a unit area mass of 200 g / ㎡ and a pore size greater than 0.5 mm.

[0043] The structure of the processing module is a rectangular frame structure, a trapezoidal frame structure, or a triangular frame structure. Figure 3 As shown, a diversion interception plate 25 is provided in the treatment module, and the diversion interception plate 25 divides the treatment module from front to back into a first medium-efficiency filtration treatment module 1, a first high-efficiency filtration treatment module 2, a high-efficiency reoxygenation biodegradation treatment module 3, a second high-efficiency filtration treatment module 4, and a second medium-efficiency filtration treatment module 5. A plurality of holes 26 may be provided on the diversion interception plate 25 to extend the time for the water body to pass through the treatment module 27, so that the water body is fully in contact with the treatment module 27, and ensure that the treatment module 27 can fully play the role of repairing the water body.

[0044] The pore size of the filler in the first medium-efficiency filtration treatment module 1 is larger than the pore size of the filler in the first high-efficiency filtration treatment module 2. The tops of the first net bag 6 and the second net bag 7 are connected to one end of the traction rope 24 through a hook 23, and the other end of the traction rope 24 can be fixed to the top of the module. When the filler in the first net bag 6 or the second net bag 7 needs to be replaced, the staff can directly pull out the first net bag 6 or the second net bag 7 through the traction rope 24 at the top of the module and replace it with a new net bag. The replacement of the filler is convenient and fast, which solves the problem of difficulty in replacing the filler in the existing ecological dam, improves work efficiency, reduces the workload of the staff, and reduces labor costs.

[0045] When used specifically, the present invention can be placed in a tidal river channel. The pile foundation 14 of the supporting structure is inserted into the river channel, the rectangular frame 13 abuts against the riverbed slope, and ensures that the structure of the rectangular frame 13 matches the structure of the riverbed slope. After the supporting structure is placed, the ecological dam formed by splicing the processing modules 27 is placed in the fence 12 of the supporting structure. The outer side of the processing module 27 is connected to one end of the iron chain 15 by a hinge, and the other end of the iron chain 15 is fixed on the pile foundation 14. When the ecological dam needs to be disassembled, the hinge at the connection is loosened and the processing module 27 is taken out. When the ecological dam needs to be installed, the processing module 27 can be fixed by the hinge. The fence 12, the pile foundation 14, and the iron chain 15 can alleviate the impact force of the water body on the processing module 27, ensure the stability of the use of the processing module 27, and extend the service life of the processing module 27.

[0046] During high tide, the water body passes through the first coarse filter 28, the first medium-efficiency filtration treatment module 1, the first high-efficiency filtration treatment module 2, the high-efficiency reoxygenation biodegradation treatment module 3, the second high-efficiency filtration treatment module 4, the second medium-efficiency filtration treatment module 5, and the second coarse filter 29 in sequence. The fillers in the first medium-efficiency filtration treatment module 1 and the first high-efficiency filtration treatment module 2 can intercept, adsorb, and filter impurities in part of the water body, thereby purifying the water body. In the high-efficiency reoxygenation biodegradation treatment module 3, through the aeration effect of the aerator 11, very fine bubbles are generated in the aeration tube 8, and the bubbles slowly rise from the bottom of the high-efficiency reoxygenation biodegradation treatment module 3 to the water surface, so that the oxygen in the bubbles is fully dissolved and absorbed, increasing the dissolved oxygen content in the water and enhancing the purification capacity of the water body. In addition, the artificial water grass 9 provides a rich three-dimensional film structure for microorganisms. Microorganisms can quickly decompose and absorb nutrients such as ammonia nitrogen and phosphorus in water pollutants to purify the water body. At the same time, an electrode plate 10 is provided in the high-efficiency reoxygenation biodegradation treatment module 3. The electric field generated by the electrode plate 10 can effectively break the macromolecular chemical bonds in the pollutants, decomposing the macromolecules of the pollutants into harmless small molecules, which is conducive to the further decomposition and treatment of microorganisms. In addition, the electrode plate 10 electrolyzes water to produce a large number of hydrogen ions, hydroxide ions, and free oxygen ions with strong redox ability, which can decompose pollutants in the water body and effectively solve the relatively stable colloidal suspended matter that causes turbidity in the water body. After the electrode plate 10 in the high-efficiency reoxygenation biodegradation treatment module 3 breaks up the colloids in the water body, it is also conducive to the decomposition of pollutants by microorganisms to ensure the clarity of the water body.

[0047] At low tide, the water body passes through the second coarse filter 29, the second medium-efficiency filtration treatment module 5, the second high-efficiency filtration treatment module 4, the high-efficiency reoxygenation biodegradation treatment module 3, the first high-efficiency filtration treatment module 2, the first medium-efficiency filtration treatment module 1, and the first coarse filter 28 in sequence. In actual use, some pollutants will adhere to each treatment module. When the tide is high, under the action of the water body, the water body can flush away the pollutants adhering to the high-efficiency reoxygenation biodegradation treatment module 3, the second medium-efficiency filtration treatment module 5, the second high-efficiency filtration treatment module 4, and the second coarse filter 29. When the tide is low, these pollutants float in the water body and are collected and purified again by the ecological dam of the present invention. When the tide is low, under the action of the water body, the water body can flush away the pollutants adhering to the high-efficiency reoxygenation biodegradation treatment module 3, the first high-efficiency filtration treatment module 2, the first medium-efficiency filtration treatment module 1, and the first coarse filter 28. When the tide is high again, these pollutants float in the water body and are filtered and purified again by the ecological dam of the present invention. The present invention meets the needs of two-way water flow treatment in tidal rivers, and utilizes a backwash purification design to achieve efficient circulation, reduce the maintenance times of the ecological dam, and basically achieve maintenance-free.

[0048] The floating object collecting device of the present invention can collect floating objects on the water surface into the collection basket 21, so that the staff can promptly and uniformly process the floating objects in the collection basket 21. Figure 6 As shown, when the riverbed is at a high water level, since one end of the floating object shielding louver frame 16 is connected to the processing module 27 through a hinge, and under the action of the float 18, the floating object shielding louver frame 16, the water surface floating object collecting guide rod 17 changes with the water level and always floats on the water surface. At this time, after the surface floating objects are directed and guided by the surface floating object collecting outer guide plate 19, the surface floating objects enter the cavity formed by the floating object shielding louver frame 16 and the processing module 27, and under the action of the surface floating object collecting outer guide plate 19 and the V-shaped surface floating object collecting inner guide plate 20, they enter the collection basket 21 with the water flow, so that the staff can promptly and uniformly process the floating objects in the collection basket 21. Figure 5 As shown, when the water level drops to the normal water level, the floating object shielding louver frame 16 and the water surface floating object collecting guide rod 17 fall down under the action of the float 18 to shield the floating objects that have not entered the collecting basket 21.

[0049] Embodiment 1:

[0050] The present invention is applied to implement regional management in tidal water bodies or rivers. The water bodies before and after the eco-dam of the present invention are tested and compared at an outdoor temperature of 28°C. The test results are shown in the following table:

[0051]

[0052] It can be seen that the total phosphorus content in the water body decreased by 35.3%, the total nitrogen content decreased by 45.4%, the COD decreased by 31.6%, and the water transparency increased by 45%.

[0053] The invention can purify river water in two directions to achieve the goal of improving water quality in the treatment area. The backwash purification design reduces the number of maintenance times, basically achieves maintenance-free, prolongs the service life, and the single processing module is detachable and easy to install, which meets the passage needs of flood control, flood discharge, and emergency rescue ships.

Claims

1. A detachable module ecological dam for bidirectional water purification and backwash maintenance-free, comprising an ecological dam, characterized in that: The ecological dam is composed of a plurality of processing modules (27) spliced ​​together, wherein the processing modules (27) include, from front to back, a first medium-efficiency filtration processing module (1), a first high-efficiency filtration processing module (2), a high-efficiency reoxygenation biodegradation processing module (3), a second high-efficiency filtration processing module (4), and a second medium-efficiency filtration processing module (5); both front and rear sides of the ecological dam are provided with a water surface floating object collection device, wherein the water surface floating object collection device includes a floating object shielding shutter (16), a water surface floating object collection guide rod (17), a floating body (18), a water surface floating object collection outer guide plate (19), and a water surface floating object collection inner guide plate (20). The collecting basket (21) is located at the upper part of both the front and rear sides of the ecological dam and is connected to one end of the floating object shielding shutter frame (16) through a hinge. The other end of the floating object shielding shutter frame (16) is connected to one end of the water surface floating object collecting guide rod (17). The other end of the water surface floating object collecting guide rod (17) is connected to the floating body (18). The inner side of the water surface floating object collecting guide rod (17) is connected to one end of the water surface floating object collecting outer guide plate (19). The other end of the water surface floating object collecting outer guide plate (19) is connected to the water surface floating object collecting inner guide plate (20). The collecting baskets (21) are respectively provided at the left and right ends of the water surface floating object collecting inner guide plate (20).

2. According to claim 1, a water bidirectional purification treatment backwash maintenance-free detachable module ecological dam is characterized by: The first medium-efficiency filtering processing module (1) and the first high-efficiency filtering processing module (2) are respectively provided with a plurality of first net bags (6) and second net bags (7); the tops of the first net bags (6) and the second net bags (7) are connected to one end of a hook (23); the other end of the hook (23) is connected to a traction rope (24).

3. A water bidirectional purification and backwash maintenance-free detachable module ecological dam according to claim 2, characterized in that: The first net bag (6) may be filled with one or more fillers selected from ceramsite and volcanic rock, and the second net bag (7) may be filled with one or more fillers selected from activated carbon and vermiculite.

4. According to claim 1, a water bidirectional purification treatment backwash maintenance-free detachable module ecological dam is characterized by: The structure of the second medium-efficiency filtering processing module (5) is the same as that of the first medium-efficiency filtering processing module (1), and the structure of the second high-efficiency filtering processing module (4) is the same as that of the first high-efficiency filtering processing module (2).

5. According to claim 1, a water bidirectional purification treatment backwash maintenance-free detachable module ecological dam is characterized by: The high-efficiency reoxygenation biodegradation treatment module (3) is provided with an aeration pipe (8), artificial water plants (9), and an electrode plate (10); one end of the aeration pipe (8) is connected to an aerator (11), and the other end of the aeration pipe (8) is located in the high-efficiency reoxygenation biodegradation treatment module (3); artificial water plants (9) and an electrode plate (10) are provided on one side of the aeration pipe (8).

6. The water bidirectional purification and backwash maintenance-free detachable module ecological dam according to claim 1 is characterized by: A first coarse filter (28) and a second coarse filter (29) are respectively provided on the front and rear sides of the processing module (27).

7. The water bidirectional purification and backwash maintenance-free detachable module ecological dam according to claim 1 is characterized by: A supporting structure is provided at the bottom of the ecological dam, and the supporting structure comprises a fence (12), a rectangular frame (13), and a pile foundation (14). The fence (12) is provided at the periphery of the processing module (27), and the left and right ends of the fence (12) are connected to the rectangular frame (13). A pile foundation (14) is provided at the bottom of the fence (12), and one end of the pile foundation (14) is connected to one end of an iron chain (15), and the other end of the iron chain (15) is connected to the processing module (27).

8. The water bidirectional purification and backwash maintenance-free detachable module ecological dam according to claim 1 is characterized by: The structure of the floating object shielding shutter frame (16) is a rectangular frame structure, a trapezoidal frame structure or a triangular frame structure, the shape of the opening of the collecting basket (21) is a trumpet shape, and the structure of the inner guide plate (20) for collecting floating objects on the water surface is a V-shaped structure.

9. The water bidirectional purification and backwash maintenance-free detachable module ecological dam according to claim 1 is characterized by: A cover plate (22) is provided on the top of the ecological dam, and the longitudinal length of the ecological dam is 2-5 m.

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