Detachable modular blue-green algae floating device with photocatalysis

Abstract

The application provides a detachable modular photocatalytic blue-green algae removing floating device, which comprises a plurality of blue-green algae removing floating units, the plurality of blue-green algae removing floating units are detachably connected, the blue-green algae removing floating unit comprises an outer frame, a partition plate, a connecting assembly and a floating plate, the outer frame is arranged around the partition plate, the partition plate is concave relative to the two end faces of the outer frame to form a bearing surface and a water contact surface, a plurality of hollow holes are arranged on the partition plate, the hollow holes are connected with the bearing surface and the water contact surface, the floating plate is arranged on the bearing surface, and the floating plate is used for generating active oxidants under light conditions, the application can control the buoyancy, adopts a modular design, realizes long-term stable construction of a gas-liquid-solid three-phase interface, has high integrity, is convenient to centrally place, recycle and maintain, significantly reduces engineering operation cost, effectively improves the water flow resistance and the wind and wave resistance of the device, and is suitable for complex natural water body environments.

Description

Technical Field

[0001] This invention relates to the field of water environment engineering technology, and in particular to a detachable modular photocatalytic floating device for removing blue-green algae. Background Technology

[0002] With the increasing severity of eutrophication, cyanobacteria blooms are frequently occurring in lakes, reservoirs, and landscape water bodies. These blooms not only disrupt the balance of aquatic ecosystems but also release algal toxins, threatening drinking water safety. Cyanobacterial blooms are a phenomenon characterized by the rapid and massive proliferation of cyanobacteria in water, forming visible algal colonies or causing changes in water color. In severe cases, they can accumulate on the water surface, forming a green algal mat or even algal paste. The root cause of cyanobacterial blooms lies primarily in the excessive accumulation of nutrients such as nitrogen and phosphorus in the water, representing another form of eutrophication. Current technologies for treating cyanobacteria include chemical treatments, physical removal, and biological regulation. However, these methods generally suffer from drawbacks such as high ecological risks, high costs, and difficulty in maintaining long-term effectiveness. In recent years, floating photocatalytic algae removal technology has attracted attention. This technology involves placing photocatalytic materials on the water surface, utilizing the active species generated under light conditions to inhibit or remove cyanobacteria. Currently, floating photocatalytic algae removal devices typically fix the photocatalytic material to a floating carrier (such as foam or pontoons), forming an integrated structure before being deployed into the water body. These devices have the following problems: (1) Existing floating structures are difficult to precisely control the attitude and floating depth of the device in the water during the forming process, especially difficult to stably construct and maintain the gas-liquid-solid three-phase interface for a long time, resulting in poor reaction efficiency and repeatability of functional units. (2) Although floating carriers of the drifting or dispersed type can be distributed on the water surface, their unit size is small and highly dispersed, making it difficult to collect them in a concentrated manner after actual operation, resulting in high maintenance and management costs; (3) Most floating devices have limited resistance to water flow and waves, and are prone to drifting, overturning or accumulating in actual natural water environments, making it difficult to achieve long-term stable operation; Therefore, there is a need for a floating auxiliary device with a reasonable structural design, strong anti-current stability, easy large-scale construction, and stable load-bearing capacity for functional units, in order to meet the practical application requirements in complex aquatic environments. Summary of the Invention

[0003] In view of this, it is necessary to provide a detachable modular photocatalytic cyanobacteria removal floating device that can meet the above requirements.

[0004] This invention provides a detachable modular photocatalytic cyanobacteria removal flotation device, comprising: Multiple cyanobacteria-removing floating units are detachably connected to each other. Each cyanobacteria-removing floating unit includes an outer frame, a partition, a connecting component, and a floating plate. The outer frame surrounds the partition. The two end faces of the partition opposite to the outer frame are recessed to form a bearing surface and a water-contacting surface. The partition has several perforated holes that connect the bearing surface and the water-contacting surface. The floating plate is disposed on the bearing surface and is used to generate active oxides under light conditions.

[0005] In other embodiments, the outer frame includes four frame plates, which are connected end to end and surround the partition.

[0006] In other embodiments, the frame includes a box body and a top cover. The top of the box body is uncovered and has an internal recess to form an accommodating space. The top cover is placed on the top of the box body to close the accommodating space.

[0007] In other embodiments, the cyanobacteria removal floating unit further includes a hanging stabilizer that is detachably mounted on the frame plate.

[0008] In other embodiments, the outer frame further includes four corner connectors, the two ends of which form connecting ends and are respectively connected to adjacent box components.

[0009] In other embodiments, the accommodating space is provided with a partition plate, which divides the accommodating space into several subdivided accommodating spaces.

[0010] In other embodiments, the partition includes a plurality of horizontal partitions and a plurality of vertical partitions. The horizontal partitions are spaced apart laterally and fixed to the outer frame at both ends. The vertical partitions are spaced apart longitudinally and fixed to the outer frame at both ends. The horizontal partitions and the vertical partitions are staggered to form a plurality of the hollow holes.

[0011] In other embodiments, the connecting assembly includes a connecting piece and a pin. One side of the connecting piece is fixed to the outer edge of the frame plate, and the other side protrudes from the frame plate. A connecting hole is provided on the connecting piece, and the pin is used to pass through the connecting hole.

[0012] In other embodiments, the cyanobacteria removal floating unit further includes a pressure plate structure, which is placed on the floating plate and the edge of the pressure plate structure is engaged with the inner wall of the outer frame.

[0013] In other embodiments, the pressure plate structure includes a transparent plate that covers the floating plate, the edge of the transparent plate abutting against the side wall of the box body, and the upper cover covering the box body and abutting against the upper surface of the transparent plate.

[0014] The beneficial effects of this invention are as follows: This invention provides a detachable modular photocatalytic cyanobacteria removal floating device, comprising multiple cyanobacteria removal floating units detachably connected to each other. Each cyanobacteria removal floating unit includes an outer frame, a partition, connecting components, and a floating plate. The outer frame surrounds the partition, and the two end faces of the partition relative to the outer frame are concave to form a bearing surface and a water-contact surface. The partition has several perforated holes connecting the bearing surface and the water-contact surface. The floating plate is disposed on the bearing surface and is used to generate active oxides under light conditions. This invention achieves long-term stable construction of the gas-liquid-solid three-phase interface through the synergistic design of the buoyancy control structure. The device has strong overall integrity, facilitating centralized deployment, recovery, and maintenance, significantly reducing engineering operating costs. This invention also effectively improves the device's resistance to water flow and waves, making it suitable for complex natural aquatic environments. This invention adopts a modular and splicing design, avoiding large-size integral molding while considering structural strength and large-scale application requirements. Step-by-step molding and assembly processes simplify the manufacturing process, reduce costs, and improve the consistency of the device's structure and performance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This invention provides a schematic diagram of the detachable modular photocatalytic cyanobacteria removal floating device provided in the embodiments of the present invention; Figure 2 for Figure 1 A cross-sectional schematic diagram of the floating unit for removing cyanobacteria; Among them: 1-Blue-green algae removal floating unit, 11-Outer frame, 111-Frame plate, 111a-Box component, 111b-Top cover component, 111c-Accommodation space, 111d-Divider plate, 112-Four corner connectors, 12-Divider plate, 121-Hollow hole, 122-Horizontal partition plate, 123-Longitudinal partition plate, 13-Connecting component, 131-Connecting piece, 131a-Connecting hole, 14-Pressure plate structure. Detailed Implementation

[0017] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0018] This application provides a detachable modular photocatalytic cyanobacteria removal floating device, which includes multiple cyanobacteria removal floating units 1, and the multiple cyanobacteria removal floating units 1 are detachably connected to each other.

[0019] It should be noted that the arrangement of the multiple cyanobacteria-removing floating units 1 is not limited in this embodiment. For example, the cyanobacteria-removing floating units 1 can be connected sequentially in a row along the horizontal direction, or sequentially in a column along the vertical direction, or arranged in rows and columns to form a plane.

[0020] Specifically, the blue-green algae removal floating unit 1 includes an outer frame 11, a partition 12, a connecting component 13, and a floating plate. The outer frame 11 is arranged around the partition 12. The two end faces of the partition 12 are concave relative to the outer frame 11 to form a bearing surface and a water contact surface. The partition 12 is provided with a plurality of hollow holes 121, which connect the bearing surface and the water contact surface. The floating plate is disposed on the bearing surface and is used to generate active oxides under light conditions. The connecting component 13 is disposed on the outside of the outer frame 11 and is used to connect adjacent blue-green algae removal floating units 1.

[0021] Furthermore, the outer frame 11 includes four frame plates 111, which are connected end to end and surround the partition 12, and the inner circumferential surface of the frame plates 111 is fixed to the partition 12.

[0022] Furthermore, the frame plate 111 includes a box body 111a and a top cover 111b. The upper end of the box body 111a is uncovered, and its interior is recessed to form an accommodating space 111c. The top cover 111b is placed over the upper end of the box body 111a to close the accommodating space 111c. The purpose of providing the accommodating space 111c is to allow adjustment of the counterweight within the frame plate 111 as needed, thereby adjusting the height of the frame plate 111 above the water surface, so that the floating plate is at a suitable height, thus stably constructing the gas-liquid-solid three-phase interface and allowing the floating plate to exert its optimal effectiveness.

[0023] In addition, the blue-green algae removal floating unit 1 also includes a hanging stabilizer, which is detachably hung on the frame plate 111. It can further increase the counterweight of the outer frame 11 and enhance its ability to resist drift and overturning in complex hydrodynamic environments.

[0024] Correspondingly, the housing 111a and the upper cover 111b are provided with a number of hooks for hanging the lower stabilizer.

[0025] Furthermore, the outer frame 11 also includes four corner connectors 112, with each corner connector 112 forming a connecting end at both ends, which respectively connect to adjacent box components 111a. The four frame panels 111 are connected end-to-end sequentially through the four corner connectors 112.

[0026] Furthermore, the four corner connectors 112 are bent into an arc shape. The purpose of this design is to reduce the sharp edges of the outer frame 11 and prevent the algae removal floating units 1 from colliding with each other and being damaged when the water surface fluctuates.

[0027] Furthermore, a hollow space is formed between the curved part of the four corner connectors 112 and the frame plate 111. The purpose of this design is that the hollow space can be used to hang the lower stabilizer, which can further increase the counterweight of the outer frame 11 and enhance its ability to resist drifting and overturning in complex hydrodynamic environments.

[0028] Furthermore, the accommodating space 111c is provided with a partition plate 111d, which divides the accommodating space 111c into several subdivided accommodating spaces. The purpose of this design is to: 1. By placing counterweight loads in the subdivided accommodating spaces at different locations, independently adjust the load in each area of ​​the outer frame 11, so that the outer frame 11 can maintain its design draft, longitudinal tilt, and transverse tilt, thereby optimizing the shape and hydrodynamic performance of the outer frame 11; 2. Limit the counterweight load to prevent it from swaying within the accommodating space when the outer frame 11 drifts with the waves.

[0029] Furthermore, the partition 12 includes a plurality of horizontal partitions 122 and a plurality of vertical partitions 123. The horizontal partitions 122 are arranged at intervals along the transverse direction and are fixed to the outer frame 11 at both ends. The vertical partitions 123 are arranged at intervals along the longitudinal direction and are fixed to the outer frame 11 at both ends. The horizontal partitions 122 and the vertical partitions 123 are arranged alternately to form a plurality of the hollow holes 121.

[0030] The upper surfaces of the transverse partition 122 and several longitudinal partitions 123 form the bearing surface for placing the floating plate, and the perforated holes 121 form channels for the floating plate to spread active oxides onto the water surface.

[0031] Specifically, the connecting component 13 serves to connect adjacent outer frame bodies 11. Therefore, the connecting component 13 only needs to meet the above requirements, and this embodiment does not limit its specific structure. For example, the connecting component 13 includes a magnet disposed on the surface of the outer frame body 11. When two outer frame bodies 11 need to be connected, the magnets are simply brought close together, and the two magnets attract each other, thus connecting the two outer frame bodies 11.

[0032] In this embodiment, the connecting component 13 includes a connecting piece 131 and a pin. One side of the connecting piece is fixed to the outer edge of the frame plate 111, and the other side protrudes from the frame plate 111. The connecting piece 131 has a connecting hole 131a, and the pin is used to pass through the connecting hole 131a. In actual use, when it is necessary to connect adjacent outer frame bodies 11, the connecting pieces 131 on the two outer frame bodies 11 are overlapped, so that the connecting holes 131a overlap, and then the pin is passed through the two connecting holes 131a to achieve the connection and fixation of the outer frame bodies 11.

[0033] The purpose of using a pin connection is twofold: firstly, the connection method is simple and quick, allowing for rapid connection or separation of two adjacent outer frames 11 during actual use; secondly, the pin connection is stable and has a certain anti-loosening capability, ensuring that it will not loosen under the impact of water flow.

[0034] The floating plate comprises a foamed phenolic resin matrix and a photocatalytic functional component. The foamed phenolic resin matrix is ​​formed into a porous plate-like structure with buoyancy through a foaming process, while the photocatalytic functional component is dispersed or loaded in or on the surface of the foamed phenolic resin matrix, so that the floating plate has photocatalytic activity under light conditions.

[0035] The purpose of this design is: 1. The foamed photocatalytic phenolic resin floating plate achieves an integrated design of floating structure and photocatalytic function, significantly improving the structural stability of the photocatalytic reaction unit; 2. The foamed structure effectively improves the specific surface area and mass transfer efficiency, which is beneficial to the continuous progress of photocatalytic reaction; 3. The photocatalytic functional components form a stable bond with the resin matrix, significantly reducing the risk of catalyst shedding and secondary pollution; 4. The floating plate is installed in the photocatalytic device in a modular manner, which facilitates replacement, maintenance and large-scale deployment; 5. By continuously releasing low concentrations of active species, it achieves gentle inhibition of cyanobacteria, which is more in line with the needs of ecological governance.

[0036] Furthermore, the foamed phenolic resin matrix is ​​phenolic resin, modified phenolic resin, or its derivatives, which has an open-cell structure, a closed-cell structure, or a combination of both. The photocatalytic functional component forms a stable bond with the foamed phenolic resin matrix through in-situ introduction, blending foaming, chemical bonding, or surface modification.

[0037] In addition, the blue-green algae removal floating unit 1 also includes a pressure plate structure 14, which covers the floating plate and whose edge is engaged with the inner wall of the outer frame 11. The purpose of the pressure plate structure 14 is to cooperate with the partition 12 to fix the floating plate.

[0038] In this embodiment, the pressure plate structure 14 includes a transparent plate, which covers the floating plate. The transparent plate allows sunlight to pass through without affecting the catalytic reaction on the floating plate. At the same time, the transparent plate can shield the floating plate from some of the erosion caused by wind and rain, thus extending the service life of the floating plate.

[0039] There are various ways to connect the transparent panel to the outer frame 11. For example, the inner ring surface of the outer frame 11 is provided with a slot that matches the transparent panel, and the transparent panel is connected to the slot.

[0040] In this embodiment, the edge of the transparent plate abuts against the side wall of the housing 111a, and the upper cover 111b is placed on the housing 111a and abuts against the upper surface of the transparent plate, thereby limiting the position of the transparent plate. When it is necessary to replace the transparent plate or the floating plate, the upper cover 111b can be separated from the housing 111a first, and the upper cover 111b will detach from the transparent plate. Then, the transparent plate and the floating plate can be taken out for replacement. After the replacement is completed, the upper cover 111b is placed on the housing 111a again to limit the position of the transparent plate and the floating plate.

[0041] The beneficial effects of this invention are: This invention provides a detachable modular photocatalytic cyanobacteria removal floating device, comprising multiple cyanobacteria removal floating units detachably connected to each other. Each cyanobacteria removal floating unit includes an outer frame, a partition, a connecting component, and a floating plate. The outer frame surrounds the partition, and the two end faces of the partition opposite to the outer frame are recessed to form a bearing surface and a water-contact surface. The partition has several perforated holes connecting the bearing surface and the water-contact surface. The floating plate is disposed on the bearing surface and is used to generate active oxides under light conditions, thereby achieving the following technical effects: 1. Through the coordinated design of buoyancy control structures, long-term stable construction of the gas-liquid-solid three-phase interface is achieved; 2. The device has strong overall integrity, which facilitates centralized deployment, recovery and maintenance, and significantly reduces the project's operating costs; 3. The steady-state enhancement structure effectively improves the device's resistance to water flow and waves, making it suitable for complex natural aquatic environments; 4. Adopting a modular and splicing design avoids large-size integral molding, balancing structural strength and the needs of large-scale application; 5. Step-by-step molding and assembly processes simplify the manufacturing process, reduce costs, and improve the consistency of device structure and performance.

[0042] In the description of this application, it should be noted that the terms "upper" and "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0043] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A detachable modular photocatalytic cyanobacteria removal floating device, characterized in that, include: Multiple cyanobacteria-removing floating units are detachably connected to each other. Each cyanobacteria-removing floating unit includes an outer frame, a partition, a connecting component, and a floating plate. The outer frame surrounds the partition. The two end faces of the partition opposite to the outer frame are recessed to form a bearing surface and a water-contacting surface. The partition has several perforated holes that connect the bearing surface and the water-contacting surface. The floating plate is disposed on the bearing surface and is used to generate active oxides under light conditions.

2. The detachable modular photocatalytic cyanobacteria removal floating device as described in claim 1, characterized in that, The outer frame includes four frame plates, which are connected end to end and surround the partition.

3. The detachable modular photocatalytic cyanobacteria removal floating device as described in claim 2, characterized in that, The frame includes a box body and a top cover. The top of the box body is uncovered and has an internal recess to form an accommodating space. The top cover is placed on the top of the box body to close the accommodating space.

4. The detachable modular photocatalytic cyanobacteria removal floating device as described in claim 3, characterized in that, The blue-green algae removal floating unit also includes a hanging stabilizer, which is detachably hung on the frame plate.

5. The detachable modular photocatalytic cyanobacteria removal floating device as described in claim 3, characterized in that, The outer frame also includes four corner connectors, the two ends of which form connecting ends and are respectively connected to adjacent box components.

6. The detachable modular photocatalytic cyanobacteria removal floating device as described in claim 3, characterized in that, The accommodating space is provided with a partition plate, which divides the accommodating space into several subdivided accommodating spaces.

7. The detachable modular photocatalytic cyanobacteria removal floating device as described in claim 3, characterized in that, The partition includes several horizontal partitions and several vertical partitions. The horizontal partitions are spaced apart in the horizontal direction and fixed to the outer frame at both ends. The vertical partitions are spaced apart in the vertical direction and fixed to the outer frame at both ends. The horizontal partitions and the vertical partitions are staggered to form several hollow holes.

8. The detachable modular photocatalytic cyanobacteria removal floating device as described in claim 7, characterized in that, The connecting assembly includes a connecting piece and a pin. One side of the connecting piece is fixed to the outer edge of the frame plate, and the other side protrudes from the frame plate. A connecting hole is provided on the connecting piece, and the pin is used to pass through the connecting hole.

9. The detachable modular photocatalytic cyanobacteria removal floating device as described in claim 7, characterized in that, The blue-green algae removal floating unit also includes a pressure plate structure, which is placed on the floating plate and the edge of the pressure plate structure is engaged with the inner wall of the outer frame.

10. The processing system as described in claim 9, characterized in that, The pressure plate structure includes a transparent plate, which is placed on the floating plate. The edge of the transparent plate abuts against the side wall of the box body, and the upper cover is placed on the box body and abuts against the upper surface of the transparent plate.

Images