Water environment ecological restoration device based on microbial-plant synergistic oxygenation

Abstract

The application discloses a water environment ecological restoration device based on microbial-plant synergic oxygenation, which comprises a float, a fixed plate fixed below the float, a rotating cylinder rotationally arranged below the fixed plate, a plurality of planting grooves fixed around the rotating cylinder, a plurality of through holes formed in the two side surfaces of the planting grooves, a fixed cylinder surrounded by the float fixed on the fixed plate, a central pipe rotationally arranged in the fixed cylinder and penetrating the float, a culture cylinder connected to the lower end of the central pipe, and a plurality of through grooves formed in the outer wall of the culture cylinder. Compared with the prior art, the water environment ecological restoration device can solve the problems of uneven efficiency, high energy consumption, poor adaptability and extensive management in the traditional water body restoration technology, and can realize self-optimization, environmental adaptation and water area self-recovery stimulation.

Description

Technical Field

[0001] This invention relates to the field of ecological restoration technology, specifically a water environment ecological restoration device based on microbial-plant synergistic oxygenation. Background Technology

[0002] With the rapid development of global industrialization and urbanization, problems such as eutrophication and black and odorous water bodies are becoming increasingly serious, posing a significant threat to ecosystems and human health. Developing efficient, green, and sustainable water environment remediation technologies has become an urgent need in the field of environmental engineering.

[0003] Currently, mainstream ecological restoration technologies mainly include two categories: phytoremediation and microbial remediation. Attempts to combine the two have also emerged. Phytoremediation involves placing floating carriers on the water surface and planting aquatic plants. The plant roots penetrate deep into the water, absorbing nutrients such as nitrogen and phosphorus, secreting allelochemicals to inhibit algae growth, and improving the root zone microenvironment through root oxygenation. However, the floating islands are fixed, and uneven light exposure can lead to overgrowth on the sunlit side and decline on the shaded side. Its restorative effect is limited to the limited water area directly below the island, and the root oxygenation range is limited, typically only improving the redox environment within a few millimeters to centimeters of the root surface, with minimal oxygenation effect on the bottom and surrounding water. Microbial remediation involves directly spraying liquid or solid microbial agents into the water. However, these agents are easily dispersed and lost with water flow, making it difficult to colonize the target water area. The effective concentration is maintained for a short time, requiring repeated additions, resulting in high costs and unstable effects. Alternatively, microorganisms can be fixed on carriers such as sponges, expanded clay, or fillers to form a biofilm, which is then released into the water. This method improves the retention and activity of microorganisms, but it generally suffers from problems such as easy carrier accumulation, poor internal mass transfer, easy clogging, and difficulty in recovery and management. Whether added directly or using immobilized packing, once introduced into the water body, key process parameters such as microbial activity and contact reaction time cannot be adjusted in real time according to changes in water quality.

[0004] Therefore, it is necessary to provide a water environment ecological restoration device based on microbial-plant synergistic oxygenation to solve the problems mentioned in the background art. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a water environment ecological restoration device based on microbial-plant synergistic oxygenation, comprising a float, a fixed plate fixed below the float, a rotating cylinder rotatably disposed below the fixed plate, multiple planting troughs fixed around the rotating cylinder, and multiple through holes opened on both sides of the planting troughs;

[0006] The fixed plate is fixed with a fixed cylinder surrounded by a float. A central tube is rotatably installed inside the fixed cylinder, passing through the top and bottom of the float. The lower end of the central tube is connected to a culture tube. Multiple through grooves are opened on the outer wall of the culture tube.

[0007] Furthermore, each of the planting troughs has leaves located below the end of its length.

[0008] Furthermore, each of the blades is rotatably connected to the corresponding planting trough via a rotating shaft, which extends to the height of the top of the pontoon and is fixed with a crank handle.

[0009] Above the float is a turntable that is rotatably connected to the fixed cylinder. Multiple connecting rods are hinged to the edge of the turntable, and the other end of each connecting rod is respectively hinged to each crank handle.

[0010] Furthermore, an adjustment disc is provided above the turntable, and the adjustment disc is connected to the turntable through multiple universal joints;

[0011] A top cylinder is fixed to the top of the central tube, and a nut is fitted in the central tube below the top cylinder. The adjusting disc is rotatably connected to the outer wall of the nut.

[0012] The outer wall of the upper part of the central tube is threaded, and the nut is threadedly connected to the central tube.

[0013] Multiple guide shafts are fixed to the top of the fixed cylinder, and the guide shafts slide through the side wall of the nut.

[0014] Furthermore, the top cylinder is a cavity and communicates with the central tube, and the side wall of the top cylinder is provided with an injection port.

[0015] Furthermore, multiple rings of fixed filter cylinders and rotating filter cylinders are arranged alternately inside the culture tube, and the fixed filter cylinders and rotating filter cylinders are made of porous material;

[0016] Both the fixed filter cylinder and the rotating filter cylinder have through grooves on their side walls.

[0017] Furthermore, the culture tube is rotatably equipped with an adjusting cylinder that fits against the inner wall, and the side wall of the adjusting cylinder has multiple through grooves.

[0018] Furthermore, a separator plate is rotatably provided on the upper part of the culture tube, and the separator plate is fixedly connected to each rotating filter tube;

[0019] The surface of the separator plate is provided with a liquid outlet groove that communicates with each fixed filter cylinder and the rotating filter cylinder;

[0020] The lower part of the central tube is rotatably inserted into the culture tube and fixed to the separator plate. The side wall of the lower part of the central tube has a through hole.

[0021] Furthermore, an inner cylinder is fixed in the center of the culture tube, the top of the inner cylinder is attached to the bottom of the separator plate, and a through hole is provided on the side wall of the top of the inner cylinder.

[0022] The central tube is provided with an inner tube, the bottom of which rotatably passes through the partition plate and extends into the inner cylinder;

[0023] The inner tube has helical blades fixed to its outer wall at the position inside the inner cylinder.

[0024] Furthermore, the upper end of the inner tube rotatably extends through the top cylinder, and a connecting plate is fixed around the upper end of the inner tube. Multiple vertical connecting shafts are fixed on the upper surface of the turntable, and the upper ends of the connecting shafts are fixed to the connecting plate.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] In this invention, the device tightly couples the phytoremediation unit planting trough and the microbial remediation unit culture tube in a vertical space. The oxygen secreted by the plant roots creates an aerobic environment for the surrounding water and the microbial film below; while the microbial metabolites can serve as a nutrient source for the plants. This symbiotic relationship significantly improves the purification efficiency of the single technology. Pollutants (such as nitrogen, phosphorus, and organic matter) form a short-chain cycle of "plant absorption - microbial degradation" within the device, accelerating their removal and transformation from the water and improving the overall stability and tolerance of the system.

[0027] In this invention, the water flow drives the blades to rotate the entire planting trough slowly, changing the static mode of the traditional fixed ecological floating island. This ensures that the restoration effect is evenly distributed in the horizontal direction of the water body, eliminates dead zones of light and material exchange, and greatly expands the effective radius of influence of a single device. The rotation itself and the disturbance of the blades continuously promote the mixing of the upper and lower water bodies, effectively breaking the thermocline or halocline, preventing the expansion of the bottom anaerobic zone, and raising the bottom nutrient-rich water body to the vicinity of the plant root zone and microbial film for treatment, thus realizing the three-dimensional restoration of the entire water column.

[0028] The core rotation and pump functions of the device are driven entirely by the natural kinetic energy of the water flow, requiring no external power. This makes it suitable for remote waters with no or inconvenient electricity supply, significantly reducing long-term operating energy consumption and maintenance costs.

[0029] In this invention, the rotation speed of the device can be controlled by adjusting the blade tilt angle, thereby adapting to water bodies with different flow rates and regulating the water mixing intensity. By adjusting the overlap of the regulating cylinder of the culture tube and the through-channel of the internal rotating filter tube, the hydraulic residence time and treatment load of the microbial unit can be precisely controlled, flexibly responding to different water quality conditions from light to heavy pollution. All adjustment functions can be easily operated through the components above the water surface, without the need for going underwater or complex tools. The central tube and the top cylinder form an internal dosing channel that directly reaches the microbial unit, realizing the targeted and quantitative replenishment of bacterial agents and nutrients, avoiding the loss and waste caused by direct spillage, resulting in more precise management and lower costs. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a water environment ecological restoration device based on microbial-plant synergistic oxygenation.

[0031] Figure 2 This is a schematic diagram of the structure at the top of the pontoon of the present invention;

[0032] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0033] Figure 4 This is a schematic diagram of the cross-sectional structure of the culture tube;

[0034] Figure 5 This is a schematic diagram of the internal structure of the culture tube;

[0035] In the diagram: 1. Float; 2. Fixed plate; 21. Fixed cylinder; 22. Rotating cylinder; 3. Planting trough; 31. Blade; 32. Rotating shaft; 33. Handle; 34. Connecting rod; 4. Central tube; 41. Inner tube; 42. Top cylinder; 43. Spiral blade; 5. Culture cylinder; 51. Fixed filter cylinder; 52. Rotating filter cylinder; 53. Adjusting cylinder; 54. Separating plate; 55. Liquid outlet trough; 56. Inner cylinder; 6. Turntable; 61. Connecting shaft; 62. Connecting plate; 7. Adjusting plate; 71. Nut; 72. Guide shaft; 8. Universal joint. Detailed Implementation

[0036] Please see Figures 1-5 In this embodiment of the invention, a water environment ecological restoration device based on microbial-plant synergistic oxygenation includes a float 1, a fixing plate 2 fixed below the float 1, a rotating cylinder 22 rotatably arranged below the fixing plate 2, and multiple planting troughs 3 fixed around the rotating cylinder 22. Multiple through holes are opened on both sides of the planting troughs 3.

[0037] The fixed plate 2 is fixed with a fixed cylinder 21 surrounded by the float 1. A central tube 4 is rotatably arranged inside the fixed cylinder 21, passing through the upper and lower parts of the float 1. The lower end of the central tube 4 is connected to a culture cylinder 5. Multiple through grooves are opened on the outer wall of the culture cylinder 5.

[0038] The device can float on the water surface through the float 1. The planting trough 3 is used to plant aquatic plants. The rotating cylinder 22 can make multiple planting troughs 3 rotate, so that the plants can receive light evenly and avoid excessive growth on one side. At the same time, the slow rotation driven by the water flow can promote water mixing and material exchange, expand the restoration range, and prevent local dead water areas. The through holes of the planting trough 3 ensure that the plant roots are in full contact with the water, allowing the roots to extend freely and secrete oxygen, while allowing nutrients and microorganisms in the water to freely enter and exit the root zone.

[0039] The culture tube 5 is used to cultivate oxygen-producing microorganisms, and the central tube 4 serves as a channel for the delivery of microbial agents and the replenishment of nutrients, thereby enabling precise management and enhancement of the microbial remediation unit and avoiding the loss caused by the direct delivery of microbial agents to open water bodies.

[0040] In this embodiment, a leaf 31 is provided below the end of each planting trough 3.

[0041] The blade 31 will disturb the lower water body, promote the mixing of the upper and lower water layers, and the blade 31 will rotate under the impact of the water flow, causing the upper rotating cylinder 22 and planting trough 3 to rotate circumferentially.

[0042] In this embodiment, each of the blades 31 is rotatably connected to the corresponding planting trough 3 via a rotating shaft 32. The rotating shaft 32 extends to the height of the top of the float 1 and is fixed with a rocker arm 33.

[0043] Above the float 1 is a turntable 6 that is rotatably connected to the fixed cylinder 21. The edge of the turntable 6 is hinged with multiple connecting rods 34, and the other end of each connecting rod 34 is respectively hinged to each crank 33.

[0044] In other words, by adjusting the relative angle between the turntable 6 and the rotating cylinder 22, each connecting rod 34 can push the crank 33, thereby adjusting the tilt angle of each blade 31 to adapt to different water flow and adjust the rotation speed of the planting trough 3.

[0045] In this embodiment, an adjustment disk 7 is provided above the turntable 6, and the adjustment disk 7 is connected to the turntable 6 through multiple universal joints 8;

[0046] The top of the central tube 4 is fixed with a top cylinder 42, and a nut 71 is sleeved in the central tube 4 below the top cylinder 42. The adjusting disc 7 is rotatably connected to the outer wall of the nut 71.

[0047] The outer wall of the upper part of the central tube 4 is threaded, and the nut 71 is threadedly connected to the central tube 4.

[0048] Multiple guide shafts 72 are fixed to the top of the fixed cylinder 21, and the guide shafts 72 slide through the side wall of the nut 71.

[0049] In other words, the guide shaft 72 can restrict the rotation of the nut 71. By turning the top cylinder 42 to rotate the central tube 4, the nut 71 can be moved up and down, thereby changing the distance between the adjusting plate 7 and the turntable 6. Under the action of the universal joint 8, the distance between the adjusting plate 7 and the turntable 6 can determine the relative angle between the adjusting plate 7 and the turntable 6, and thus determine the tilt angle of the blade 31.

[0050] In this embodiment, the top cylinder 42 is a cavity and is connected to the central tube 4, and the side wall of the top cylinder 42 is provided with an injection port.

[0051] Microbial agents can be injected into the central tube 4 through the injection port to provide inoculum for the culture tube 5.

[0052] In this embodiment, multiple rings of fixed filter cylinders 51 and rotating filter cylinders 52 are arranged alternately inside the culture tube 5, and the fixed filter cylinders 51 and rotating filter cylinders 52 are made of porous material;

[0053] Both the fixed filter cylinder 51 and the rotating filter cylinder 52 have through grooves on their side walls.

[0054] The fixed filter cylinder 51 and the rotating filter cylinder 52 are filled with microbial agents. When water flows through the fixed filter cylinder 51 and the rotating filter cylinder 52, the nutrients in the water can continuously provide nutrients for the microorganisms, enabling them to grow and produce oxygen.

[0055] Furthermore, by rotating the filter cylinder 52, the through grooves of the fixed filter cylinder 51 and the rotating filter cylinder 52 can be offset by different angles, thereby adjusting the efficiency of water flow to adapt to different water quality conditions.

[0056] In this embodiment, the culture tube 5 is rotatably provided with an adjusting tube 53 that fits against the inner wall, and the side wall of the adjusting tube 53 has multiple through grooves.

[0057] By rotating the regulating cylinder 53, the culture cylinder 5 and the through groove of the regulating cylinder 53 can be offset at different angles to adjust the total water inflow.

[0058] In this embodiment, a separator disk 54 is rotatably provided on the upper part of the culture tube 5, and the separator disk 54 is fixedly connected to each rotating filter tube 52;

[0059] The surface of the separator 54 is provided with a liquid outlet groove 55 that communicates with each fixed filter cylinder 51 and the rotating filter cylinder 52;

[0060] The lower part of the central tube 4 is rotatably inserted into the culture tube 5 and fixed to the separator plate 54. The side wall of the lower part of the central tube 4 is provided with a through hole.

[0061] In other words, by rotating the central tube 4, the separator plate 54 and each rotating filter cartridge 52 can be rotated, thereby adjusting the efficiency of water flow. Furthermore, the microbial agent can flow through the through hole at the bottom of the central tube 4 onto the separator plate 54 and flow into each fixed filter cartridge 51 and rotating filter cartridge 52 through the liquid outlet trough 55 to continuously provide microbial inoculum.

[0062] In this embodiment, an inner cylinder 56 is fixed in the center of the culture tube 5, the top of the inner cylinder 56 is attached to the bottom of the separator plate 54, and a through hole is provided on the side wall of the top of the inner cylinder 56.

[0063] The central tube 4 is provided with an inner tube 41, the bottom of which rotatably passes through the partition plate 54 and extends into the inner cylinder 56.

[0064] The inner tube 41 has a spiral blade 43 fixed on its outer wall inside the inner cylinder 56.

[0065] In other words, the water flowing through each fixed filter cartridge 51 and rotating filter cartridge 52 can enter the interior of the inner cylinder 56 through the through hole at the top of the inner cylinder 56. By rotating the inner tube 41, the spiral blades 43 can generate downward pressure on the water flow, thereby causing the water in the inner cylinder 56 to flow from the bottom of the inner tube 41 to the top.

[0066] In this embodiment, the upper end of the inner tube 41 is rotatably inserted into the top cylinder 42, and a connecting plate 62 is fixed around the upper end of the inner tube 41. Multiple vertical connecting shafts 61 are fixed on the upper surface of the turntable 6, and the upper ends of the connecting shafts 61 are fixed to the connecting plate 62.

[0067] In other words, when the planting trough 3 and the rotating cylinder 22 are driven to rotate by the water flow, they will drive the connecting plate 62 and the inner tube 41 to rotate, thereby causing the spiral blade 43 to rotate and pump the oxygen-rich water in the culture cylinder 5 to the upper end of the inner tube 41 to be delivered to the water surface.

[0068] In practice, select the target water area that needs to be repaired, and put the whole device into the water surface. The float 1 ensures that the device floats stably. Plant suitable aquatic plants (such as Vallisneria natans, Hydrilla verticillata, Myriophyllum spicatum, etc.) in each planting trough 3. The plant roots will extend outward through the through holes on the side wall of the planting trough 3 and come into contact with the water.

[0069] The prepared high-efficiency oxygen-producing microbial agent and necessary nutrient solution are injected into the central tube 4 through the injection port on the side wall of the top tube 42. The agent flows along the central tube 4 to the bottom culture tube 5. First, it flows evenly into the porous material of each ring of fixed filter tube 51 and rotating filter tube 52 through the liquid outlet 55 on the partition plate 54, thus completing the initial immobilization culture of microorganisms.

[0070] The water flow impacts the blades 31 at the end of the planting trough 3, generating torque, which drives the rotating cylinder 22 and all the planting troughs 3 to slowly rotate around the fixed plate 2. This process is automatic and requires no external power, allowing the plants to receive light evenly and promoting the uniform diffusion of oxygen secreted by the roots; it also stirs the water, promotes the exchange of substances, and expands the repair area.

[0071] If the rotation speed of the planting trough 3 needs to be adjusted according to the season, water flow speed or repair needs, it can be achieved by adjusting the tilt angle of the blades 31: Tighten the top cylinder 42 to drive the central tube 4 to rotate. Since the guide shaft 72 restricts the rotation of the nut 71, the rotation of the central tube 4 will be converted into the vertical linear movement of the nut 71 along the guide shaft 72. The lifting and lowering of the nut 71 changes the relative distance and angle between the adjusting plate 7 and the turntable 6 through the universal joint 8 linkage mechanism, and then pushes the crank handle 33 through the connecting rod 34, and finally adjusts the tilt angle of all blades 31 synchronously. The tilt angle of the blades 31 changes, and the effective area impacted by the water flow changes accordingly, thereby adjusting the driving torque and controlling the rotation speed of the planting trough 3.

[0072] While rotating the top cylinder 42, the central tube 4 drives the bottom partition plate 54 to rotate. The partition plate 54 drives all rotating filter cylinders 52 to rotate synchronously, changing their relative position with the fixed filter cylinder 51 through groove, so as to adapt to the rotation speed of the planting trough 3, adjust the flow rate, control the contact time between the water flow and the internal immobilized microorganisms, and optimize the metabolism and oxygen production efficiency of the microorganisms.

[0073] When the planting trough 3 is driven to rotate by the water flow, it drives the inner tube 41 to rotate through the connecting shaft 61 and the connecting plate 62. The spiral blades 43 at the lower end of the inner tube 41 rotate accordingly, generating a pumping effect in the inner tube 56 of the cultivation tube 5. The oxygen-rich water that has been treated by microorganisms is lifted from the bottom of the inner tube 56, transported upward through the inner tube 41, and finally discharged from the upper end of the inner tube 41 to the upper layer of the water or the water surface.

[0074] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A water environment ecological restoration device based on microbial-plant synergistic oxygenation, comprising a float (1), characterized in that, A fixing plate (2) is fixed below the float (1), and a rotating cylinder (22) is rotatably arranged below the fixing plate (2). Multiple planting troughs (3) are fixed around the rotating cylinder (22), and multiple through holes are opened on both sides of the planting troughs (3). The fixed plate (2) is fixed with a fixed cylinder (21) surrounded by the float (1). A central tube (4) is rotatably arranged inside the fixed cylinder (21) and passes through the top and bottom of the float (1). The lower end of the central tube (4) is connected to a culture tube (5). Multiple through grooves are opened on the outer wall of the culture tube (5).

2. The aquatic environment ecological restoration device based on microbial-plant synergistic oxygenation according to claim 1, characterized in that, Each of the planting troughs (3) has a leaf (31) below the end of its end.

3. The aquatic environment ecological restoration device based on microbial-plant synergistic oxygenation according to claim 2, characterized in that, Each of the blades (31) is rotatably connected to the corresponding planting trough (3) via a pivot (32), which extends above the top of the float (1) and is fixed with a crank (33). Above the float (1) is a turntable (6) that is rotatably connected to the fixed cylinder (21). The edge of the turntable (6) is hinged with multiple connecting rods (34), and the other end of each connecting rod (34) is respectively hinged to each crank (33).

4. The aquatic environment ecological restoration device based on microbial-plant synergistic oxygenation according to claim 3, characterized in that, An adjustment disc (7) is provided above the turntable (6), and the adjustment disc (7) is connected to the turntable (6) by multiple universal joints (8); The top of the central tube (4) is fixed with a top cylinder (42), and a nut (71) is sleeved in the central tube (4) below the top cylinder (42). The adjusting plate (7) is rotatably connected to the outer wall of the nut (71). The outer wall of the upper part of the central tube (4) is threaded, and the nut (71) is threadedly connected to the central tube (4); Multiple guide shafts (72) are fixed to the top of the fixed cylinder (21), and the guide shafts (72) slide through the side wall of the nut (71).

5. The aquatic environment ecological restoration device based on microbial-plant synergistic oxygenation according to claim 4, characterized in that, The top cylinder (42) is hollow and connected to the central tube (4), and the side wall of the top cylinder (42) is provided with an injection port.

6. The aquatic environment ecological restoration device based on microbial-plant synergistic oxygenation according to claim 4, characterized in that, The culture tube (5) is provided with multiple rings of fixed filter tubes (51) and rotating filter tubes (52) arranged alternately inside the tube. The fixed filter tubes (51) and rotating filter tubes (52) are made of porous material. Both the fixed filter cylinder (51) and the rotating filter cylinder (52) have through grooves on their side walls.

7. The aquatic environment ecological restoration device based on microbial-plant synergistic oxygenation according to claim 6, characterized in that, The culture tube (5) is rotatably provided with an adjustment tube (53) that fits against the inner wall, and the side wall of the adjustment tube (53) has multiple through grooves.

8. The aquatic environment ecological restoration device based on microbial-plant synergistic oxygenation according to claim 7, characterized in that, A separator plate (54) is rotatably provided on the upper part of the culture tube (5), and the separator plate (54) is fixedly connected to each rotating filter tube (52); The surface of the separator (54) is provided with a liquid outlet groove (55) that communicates with each fixed filter cylinder (51) and rotating filter cylinder (52). The lower part of the central tube (4) is rotatably inserted into the culture tube (5) and fixed to the separator plate (54). The side wall of the lower part of the central tube (4) is provided with a through hole.

9. A water environment ecological restoration device based on microbial-plant synergistic oxygenation according to claim 4, characterized in that, The culture tube (5) has an inner tube (56) fixed in the center. The top of the inner tube (56) is attached to the bottom of the separator plate (54), and the side wall of the top of the inner tube (56) has a through hole. The central tube (4) is provided with an inner tube (41), the bottom of which rotatably passes through the partition plate (54) and extends into the inner cylinder (56); The inner tube (41) has a spiral blade (43) fixed on its outer wall inside the inner cylinder (56).

10. A water environment ecological restoration device based on microbial-plant synergistic oxygenation according to claim 9, characterized in that, The upper end of the inner tube (41) is rotatably inserted into the top cylinder (42), and a connecting plate (62) is fixed around the upper end of the inner tube (41). Multiple vertical connecting shafts (61) are fixed on the upper surface of the turntable (6), and the upper ends of the connecting shafts (61) are fixed in the connecting plate (62).

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