Floating island type water body purification device

Abstract

The utility model discloses a kind of floating island type water purification devices, including air suction pipe, buoyancy device, buoyancy auxiliary device, encapsulation knot, aeration device and solar energy system;Buoyancy auxiliary device is located at the outer periphery of buoyancy device;Buoyancy device is equipped with the hole for accommodating aquatic plant;Connecting member passes through the thickness direction of buoyancy device and is connected with encapsulation structure, and it is fixed together to encapsulation knot with buoyancy device;Encapsulation structure is used to install aeration device and filler;One end of air suction pipe is connected with the air inlet of aeration device, and the other end of air suction pipe is stretched out of buoyancy device and communicated with atmosphere.By proposing combined ecological floating island, the large water body, large scene, such as river, lake, reservoir, etc. Large-area water body nitrogen, phosphorus management is realized. By setting buoyancy auxiliary device around buoyancy device, the carrying capacity of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of sewage (wastewater) treatment and resource utilization technology, specifically a floating island type water purification device. Background Technology

[0002] Artificial floating island technology (also known as ecological floating beds or artificial floating beds) is an ecological engineering technology that utilizes the combined effects of aquatic plants, microorganisms, and floating bed substrates to purify water bodies through physical, chemical, and biological processes. In recent years, artificial floating island technology has emerged as an emerging treatment technology for the remediation of eutrophic and other polluted water bodies, enabling in-situ water remediation.

[0003] However, the root systems of aquatic plants have limited capacity to absorb nutrients such as nitrogen and phosphorus from the water, making them unsuitable for treating large-scale, high-volume water bodies with high concentrations of ammonia nitrogen, total nitrogen, and total phosphorus. Furthermore, the roots of aquatic plants require a relatively long hydraulic retention time to achieve a certain treatment effect. Their purification capacity is limited by multiple factors, including plant species, growth rate, and seasonal variations, resulting in purification efficiency that is typically lower than traditional biological treatment technologies. Moreover, the removal rates of ammonia nitrogen and total phosphorus cannot be quantified. Due to their low pollutant removal load and strong dependence on environmental factors, a filter media system needs to be added below them. However, adding a filter media system increases the overall buoyancy load of the artificial floating island. Therefore, a highly efficient, stable, and lightweight treatment technology is needed to enable the large-scale implementation of artificial floating island devices.

[0004] In addition, in the existing technology, the power supply for artificial floating island devices that require equipment such as water pumps and aerators still relies on the traditional power grid, which makes it impossible to operate flexibly or implement them on a large scale. Summary of the Invention

[0005] In order to solve the problems described in the background art, the purpose of this utility model is to provide a floating island-type water purification device to achieve large-area nitrogen and phosphorus treatment in large water bodies and large scenarios such as rivers, lakes, and reservoirs.

[0006] This utility model discloses a floating island-type water purification device, which includes an air intake pipe, a buoyancy device, a buoyancy auxiliary device, an encapsulation structure, an aeration device, and a solar energy system.

[0007] The buoyancy aid is installed on the outer periphery of the buoyancy device; the buoyancy device has holes for accommodating aquatic plants; the connecting member passes through the thickness direction of the buoyancy device and is connected to the encapsulation structure to fix the buoyancy device and the encapsulation structure together; the encapsulation structure is used to load the aeration device and the packing material, one end of the air intake pipe is connected to the air inlet of the aeration device, and the other end of the air intake pipe extends out of the buoyancy device and communicates with the atmosphere;

[0008] The solar energy system is used to power the aeration device.

[0009] Preferably, the buoyancy device includes at least one float layer, with the upper layer being a first float layer for placing aquatic plants and the lower layer being a second float layer. One end of the connecting member is attached to the encapsulation structure, and the other end of the connecting member passes through the first and second float layers to connect the float layers to the encapsulation structure.

[0010] Preferably, the floating plate layer includes at least two floating plates, which are connected to each other to form the floating plate layer. The floating plates have holes in the middle for accommodating aquatic plants, and the corners of the floating plates are provided with first bolt fixing points. Connecting member fixing points are provided around the perimeter of the floating plates.

[0011] Preferably, the connecting member includes an upper member and a lower member, which are detachably connected.

[0012] Preferably, the lower component is a second U-shaped structure, and the bottom of the U-shaped structure is attached to the frame of the encapsulation structure.

[0013] Preferably, the upper component is a first U-shaped structure, and the end of the opening of the first U-shaped structure is provided with an outwardly extending first tongue. The end of the opening of the second U-shaped structure of the lower component is provided with an outwardly extending second tongue. The first tongue and the second tongue are connected by a second bolt. When fixing the buoyancy device and the encapsulation structure, the second bolt passes through the first tongue, the fixing point of the connecting component, and the second tongue.

[0014] Preferably, the packing material in the encapsulation structure is a porous denitrification packing material or a porous adsorption and phosphorus removal packing material.

[0015] Preferably, the device further includes a solar energy system, which includes a solar panel and a support frame. One end of the support frame is connected to the solar panel, and the other end of the support frame is connected to the buoyancy device. The solar energy system is electrically connected to the aeration device.

[0016] Preferably, the solar energy system further includes a controller, a storage battery, and an inverter mounted on a support frame. The controller is electrically connected to the storage battery, and the inverter is electrically connected to both the storage battery and the aeration device, thereby enabling the solar energy system to supply power to the aeration device.

[0017] Preferably, the floating island-type water purification device further includes a fixing device, which is movably connected to the encapsulation structure.

[0018] Preferably, the bottom of the aeration device is provided with a jet aeration pipe, both ends of which extend outward from the aeration device, and the pipe body extending outward is provided with a plurality of aeration holes. The jet aeration pipe is connected to the air outlet pipe of the aeration device through a connector.

[0019] Preferably, the connector is a flange connector or a threaded connector, with the external thread of the threaded connector located at the end of the air outlet pipe and the internal thread of the threaded connector located in the middle of the jet aeration pipe.

[0020] Preferably, there is a first gap between the second floating plate layer and the first floating plate layer.

[0021] Preferably, the packing material is a denitrification and / or phosphorus removal porous packing material.

[0022] Preferably, there is a second gap between the bottom of the buoyancy device and the top of the encapsulation structure.

[0023] This utility model discloses a floating island-type water purification device. Through the design of connecting components, the buoyancy device and the encapsulation structure are detachably connected, facilitating the addition and removal of filler. The filler is installed within the encapsulation structure located at the bottom of the buoyancy device. The encapsulation structure also houses a device for water flow and jet aeration. The fixing system is connected at one end to the encapsulation structure of the denitrification ecological floating bed and at the other end to the water tank body, used to fix the ecological floating island (bed). This helps control the amount of filler used, achieving precise removal of water pollutants. Furthermore, by setting buoyancy auxiliary devices around the buoyancy device, the load-bearing capacity of the device is improved.

[0024] By proposing a modular ecological floating island, the splicing of floating panels allows for application in large-scale aquatic systems. The use of multiple floating panel layers increases the buoyancy of the ecological floating island and reduces the downward pressure exerted by solar panels. Standardized modular floating panels are cut and combined to create various artificial landscape shapes. The fibrous material on the surface of the ecological floating bed carrier itself has a soft landscape effect; soil or low-growing herbaceous plants such as turf can be planted on the edges of the ecological floating bed. Deploying ecological floating beds in rivers and lakes enhances the aquatic landscape and showcases aquatic culture.

[0025] On the other hand, it achieves energy conservation by utilizing solar energy, thus achieving the goal of low carbon emissions. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Appendix Figure 1 This is a schematic diagram of the structure of a floating island-type water purification device according to the present invention;

[0028] Appendix Figure 2 This is a structural diagram of the floating plate of a floating island-type water purification device according to this utility model;

[0029] Appendix Figure 3 This is a schematic diagram of the float plate connection of a floating island-type water purification device according to the present invention;

[0030] Appendix Figure 4 This is a schematic diagram of the float plate connection of another embodiment of the floating island-type water purification device of this utility model;

[0031] Appendix Figure 5 This is a diagram of the connecting components of a floating island-type water purification device according to this utility model;

[0032] Appendix Figure 6 This is a packaging structure diagram of a floating island-type water purification device according to the present invention;

[0033] Appendix Figure 7 This is a schematic diagram of the solar energy system of a floating island-type water purification device according to this utility model.

[0034] Among them, 1. Solar energy system, 2. Inhalation tube 3. Aquatic plants; 5. Buoyancy device; 4. Connecting component; 6. Buoyancy auxiliary device; 7. Encapsulation structure; 8. Aeration device; 9. Packing material; 10. Jet aeration pipe; 11. Fixing device; 1-1. Solar panel; 1-2. Bracket; 1-3. Controller; 1-4. Inverter; 1-5. Battery; 4-1. Second bolt; 4-2. Upper component; 4-3. Lower component; 5-1. First bolt fixing point; 5-2. Hole; 5-3. Connecting component fixing point; 7-2. Stainless steel mesh; 7-3. Reinforcing stainless steel rib. Detailed Implementation

[0035] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort are within the scope of protection of the present application.

[0036] The term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this application. In the description of this application, it should be understood that the terms "upper," "lower," "top," "bottom," etc., indicating orientation or positional relationships based on the orientation or positional relationships 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 device 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.

[0037] Although the numerical ranges and parameters described in this application are approximate, the values ​​listed in the specific examples are reported as precisely as possible. However, any numerical value inherently contains some error that is necessarily caused by the standard deviation found in their respective test measurements.

[0038] When a numerical range is disclosed herein, the range is considered continuous and includes the minimum and maximum values ​​of the range, as well as every value between the minimum and maximum values. Furthermore, when the range refers to an integer, it includes every integer between the minimum and maximum values ​​of the range. Additionally, when multiple ranges are provided to describe a feature or characteristic, the ranges may be combined. In other words, unless otherwise specified, all ranges disclosed herein should be understood to include any and all subranges to which they are included. For example, a specified range from “1 to 10” should be considered to include any and all subranges between the minimum value 1 and the maximum value 10. Exemplary subranges of the range 1 to 10 include, but are not limited to, 1 to 6.1, 3.5 to 7.8, 5.5 to 10, etc.

[0039] Reference Appendix Figure 1A floating island-type water purification device includes an air intake pipe 2, a buoyancy device 5, a buoyancy auxiliary device 6, a sealing structure 7, an aeration device 8, and a solar energy system 1. The buoyancy auxiliary device 6 is located on the outer periphery of the buoyancy device 5 to improve the load-bearing capacity of the device. The buoyancy device 5 has holes 5-2 for accommodating aquatic plants 3. A connecting member 4 passes through the thickness direction of the buoyancy device 5 and connects to the sealing structure 7, fixing the buoyancy device 5 and the sealing structure 7 together. The sealing structure 7 is used to load the aeration device 8 and the packing material 9. One end of the air intake pipe 2 is connected to the air inlet of the aeration device 8, and the other end of the air intake pipe 2 extends out of the buoyancy device 5 and communicates with the atmosphere. The solar energy system 1 and the aeration device 8 are electrically connected.

[0040] During installation, first open the encapsulation structure 7, place the aeration device 8 inside, and secure it with ropes. After filling the packing material 9, release the ropes and other securing structures, and close the encapsulation structure 7. This ensures the aeration device 8 is in a stable state during operation. Then, use the connecting component 4 to fix the buoyancy device 5 to the encapsulation structure 7. Specifically, after the connecting component 4 is attached to the encapsulation structure 7, it is then passed through the buoyancy device 5 to secure the encapsulation structure 7 and the buoyancy device 5. The aeration device 8 is an aeration pump. After the aeration pump starts, the polluted water is violently agitated within the packing material of the encapsulation structure 7, completing the adsorption and removal of nitrogen and phosphorus within the packing material layer 9, thereby achieving water purification.

[0041] In some embodiments, the bottom of the aeration device 8 is provided with a jet aeration pipe 10, with both ends of the jet aeration pipe 10 extending outward from the aeration device 8. The outwardly extending pipe body is provided with a plurality of aeration holes, dispersing the gas absorbed by the aeration device 8 from the intake pipe 2 into the packing 9. The middle part of the aeration perforated pipe 10 is connected to the air outlet pipe of the aeration device 8 via a connector. The connector can be a flange connector or a threaded connector. The external thread of the threaded connector is located at the end of the air outlet pipe, and the internal thread of the threaded connector is located in the middle of the aeration perforated pipe 10.

[0042] In some embodiments, the buoyancy aid 6 can be a PVC pipe or a float, and the buoyancy aid 6 can be tied to the outer periphery of the buoyancy device 5 using ropes or steel bars.

[0043] In some embodiments, the sidewalls of the encapsulation structure 7 are mesh structures to ensure the flow of water within the device. Specifically, the mesh structure is a stainless steel mesh 7-2, in which reinforcing stainless steel ribs 7-3 are spaced apart in the transverse and longitudinal directions. The top of the encapsulation structure 7 is a mesh-structured encapsulation cover, which encapsulates the filler within the encapsulation structure 7. The dimensions of the encapsulation structure 7 are 4m * 4m * 1.2m.

[0044] In some embodiments, the floating island water purification device also includes a fixing device 11, which can be a concrete block and is movably connected to the mesh structure of the encapsulation structure 7 by materials such as ropes, so that the floating island water purification device can float up and down within a certain range of the water.

[0045] In some embodiments, the holes 5-2 are through holes or cavities for cultivating aquatic plants.

[0046] In some embodiments, the solar energy system 1 of the floating island-type water purification device includes a solar panel 1-1 and a support frame 1-2. One end of the support frame 1-2 is connected to the solar panel 1-1 to support the solar panel, and the other end of the support frame 1-2 is connected to the buoyancy device 5. The solar energy system also includes a controller 1-3, a battery 1-5, and an inverter 1-4 mounted on the support frame 1-2. The controller 1-3 is electrically connected to the battery 1-5, and the inverter 1-4 is electrically connected to both the battery 1-5 and the aeration device 8, supplying power to the aeration device 8 to ensure its normal operation and achieve the purpose of promoting water flow, increasing dissolved oxygen in the water, and saving energy. Specifically, a DC fuse or circuit breaker can be installed on the line between the inverter 1-4 and the battery 1-5. Specifically, the solar panel is a crystalline silicon solar panel, 750W, with dimensions of 2384×1303×35mm. Specifically, the other end of the support frame is connected to the float plate of the buoyancy device 5 via bolts.

[0047] In some embodiments, the buoyancy device 5 includes at least two floats, which are connected to each other on the same plane to form a float layer. Each float has a hole in the middle for accommodating aquatic plants 3. The corners of the floats are provided with first bolt fixing points 5-1 for fixing adjacent floats on the same plane. Connecting member fixing points 5-3 are provided around the floats for connecting the buoyancy device 5 and the encapsulation structure 7 together in the thickness direction. (Refer to the attached figure.) Figure 2-3 In some embodiments, the floats can be made of lightweight materials such as foam board, polyester fiber, polyethylene, and carbon fiber. Specifically, the floats are made of lightweight HDPE material, 500mm long, 500mm wide, and 150mm thick, with a single piece capable of bearing 10kg. By combining the floats horizontally, the floating island-type water purification device of this invention can be applied to large-scale aquatic systems. After the four corners of the four floats are joined together, four-hole gaskets are used to cover the first bolt fixing points 5-1 at the four corners of the floats, and the four fixing points are fixed with hexagonal socket head cap screws to fix the four adjacent floats together. (Refer to the attached diagram.) Figure 4 As shown; or two adjacent floats can be fixed together with shims and bolts. Several floats are then joined together to form a float layer. In some embodiments, the floats also feature a perforated pattern design.

[0048] In some embodiments, the buoyancy device 5 includes at least one float layer, which can enhance buoyancy, ensure that the device can support more filter media, and improve the treatment effect. The upper layer is called the first float layer, which can be used to place aquatic plants 3, and the lower layer is called the second float layer. After the connecting member 5 passes through the first float layer and the second float layer, the float layer is connected to the encapsulation structure 7. After the floats are spliced ​​into a float layer, the size of the buoyancy device 5 formed by the upper and lower float layers can be 4m*4m*0.3m.

[0049] In some embodiments, the floating plate layer may also be a floating plate with an overall size of 5m*5m*0.15m and a single plate load capacity of over 3700kg.

[0050] The buoyancy device 5 allows the floating island-type water purification device to support more packing material, improving water treatment efficiency. Furthermore, because the internal structure of the buoyancy device 5 is hollow, the pores within the hollow structure ensure sufficient root extension and effective oxygenation. Since the buoyancy device 5 provides sufficient buoyancy to prevent the roots from being completely submerged, both aquatic and terrestrial plants can adapt and grow. Plants grow densely on the carrier through various methods such as seeding and root division. After several growth cycles, the planting density is higher than that of terrestrial planting. Plant roots penetrate the gaps in the buoyancy device 5, reaching a depth of 1.5 meters underwater, maximizing the plant's absorption capacity and providing food and habitat protection for aquatic animals.

[0051] In some embodiments, the connecting member 4 includes an upper member 4-2 and a lower member 4-3, as shown in the attached figure. Figure 5 The upper component 4-2 and the lower component 4-3 are detachably connected. The upper component 4-2 is a first U-shaped structure, with an outwardly extending first tongue at the end of the opening of the first U-shaped structure. The lower component 4-3 is a second U-shaped structure, with its bottom hooked to the frame of the encapsulation structure 7; the end of the opening of the second U-shaped structure is also provided with an outwardly extending second tongue. The first tongue and the second tongue are connected by a second bolt 4-1.

[0052] Specifically, for the buoyancy device 5 with two floating plate layers, the bottom of the second U-shaped structure of the lower component 4-3 is hooked to the frame of the encapsulation structure 7. After the two sides of the second U-shaped structure pass through the fixing points 5-3 of the connecting members on both sides of the floating plate in the second floating plate layer, the second tongue abuts against the lower part of the fixing point 5-3 of the connecting member in the first floating plate layer. The first tongue in the upper component 4-2 abuts against the upper part of the fixing point 5-3 of the connecting member in the first floating plate layer. The buoyancy device 5 and the encapsulation structure 7 are fixed together by the second bolt 4-1 passing through the first tongue, the fixing point 5-3 of the connecting member in the first floating plate layer, and the second tongue. Correspondingly, the shape of the fixing point 5-3 of the connecting member matches the outer periphery shape of the two sides of the second U-shaped structure.

[0053] Specifically, for a buoyancy device 5 of a float layer, after the bottom of the second U-shaped structure of the lower component 4-3 is attached to the frame of the encapsulation structure 7, the second tongue of the second U-shaped structure is placed against the lower part of the connecting component fixing point 5-3 of the float layer, and the first tongue of the upper component 4-2 is placed against the upper part of the connecting component fixing point 5-3 of the first float layer. The buoyancy device 5 and the encapsulation structure 7 are fixed together by passing the second bolt 4-1 through the first tongue, the connecting component fixing point 5-3 of the first float layer and the second tongue.

[0054] In some embodiments, the connecting member 4 may also be a bendable metal wire such as iron wire.

[0055] In some embodiments, a second gap exists between the bottom of the buoyancy device 5 and the top of the encapsulation structure 7.

[0056] During installation: Select a 4m*4m*1.2m stainless steel mesh enclosure structure 7. First, open the enclosure structure 7, place the aeration pump 8 inside, and secure it with ropes. After filling with filler 9, release the ropes and other securing structures, and close the enclosure structure 7. This ensures the aeration pump 8 is in a stable state during operation. After enclosing the aeration device 8 and filler 9 in the enclosure structure, attach one end of the connecting component 4 (such as a wire or the aforementioned U-shaped component, etc.) to the enclosure structure 7. Then, fix the enclosure structure 7 and the buoyancy device 5 by passing the connecting component 4 through the buoyancy device 5. Finally, place the installed floating island water purification device in the water body to be purified.

[0057] The solar panel is a polycrystalline silicon panel or a monocrystalline silicon panel, 750W, with dimensions of 2384×1303×35mm.

[0058] In practical use, the packing material in the encapsulation structure 7 is a porous denitrification packing material or a porous adsorption and phosphorus removal packing material. Through the adsorption of nitrogen, phosphorus, and other nutrients in the water by the packing material and the degradation of these nutrients by microorganisms, the amount of packing material used can be controlled to achieve precise removal of pollutants from the water. The bulk density of the packing material is 410-820 kg / m³. 3 Specific surface area ≥ 8.5 m² 2 / g, compressive strength ≥3.5MPa, uniformity coefficient ≥0.6, porosity ≥70%, water absorption ≥65%, dry density ≤800kg / m³ 3 It has a mud content of ≤1%, a water absorption rate of ≥35%, and a particle size range of 3-80mm. It is a light water filler, and floating island-type water denitrification and purification devices filled with it can float on the water surface, solving the problem of sinking in floating island-type water denitrification and purification devices filled with chemical precipitation materials such as zeolite and modified steel slag.

[0059] The preparation method of the porous denitrification packing is as follows:

[0060] S11: Ingredients: Select 20% by mass of 120-mesh activated diatomaceous earth as adsorbent, 25% by mass of 400-mesh zeolite powder as ammonia nitrogen adsorbent, 25% by mass of cement as binder, and 29.5% by mass of stone powder as aggregate, mix evenly to form 600 parts of mixture 6000kg (total weight is calculated as 1000 parts).

[0061] S12: Foaming: Add 0.5 parts of anionic or cationic surfactant to 399.5 parts of water and stir thoroughly to generate a large amount of foam;

[0062] S13: Pulping: Add the mixture obtained in S11 to the foaming liquid in S12, stir thoroughly, and prepare a slurry;

[0063] S14: Expansion molding: The slurry prepared in S13 is injected into a rectangular molding mold to cross-link and form a porous solid material;

[0064] S15: Crushing: The porous solid material formed by puffing and cross-linking is fed into a crusher for crushing;

[0065] S16: Sieving: The crushed material is sieved to obtain denitrification filter media with particle sizes of 5-10mm, 10-20mm, 20-40mm, 40-60mm, and 60-80mm.

[0066] The preparation method of the porous adsorption phosphorus removal packing is as follows:

[0067] S11: Ingredients: 38% by weight of 300-mesh gypsum powder and 15% by weight of 200-mesh activated diatomaceous earth as total phosphorus adsorbent, 25% by weight of cement as binder, and 21.5% by weight of 200-mesh stone powder as aggregate, mixed evenly to form 600 parts of mixture (total weight is calculated as 1000 parts).

[0068] S12: Foaming: Add 0.5 parts of sodium dodecylbenzenesulfonate to 399.5 parts of water and stir thoroughly to produce a large amount of foam;

[0069] S13: Pulping: Add the mixture obtained in S11 to the foaming liquid in S12, stir thoroughly, and prepare a slurry;

[0070] S14: Expansion molding: The slurry prepared by S14 is fed into a molding die to be cross-linked and molded into a porous solid material;

[0071] S15: Crushing: The extruded and cross-linked solids are fed into a crusher for crushing;

[0072] S16: Sieving: The crushed material is sieved to obtain adsorption and phosphorus removal filter media with particle sizes of 2-5mm, 5-10mm, 10-20mm, and 20-40mm.

[0073] In some embodiments, the preparation method of porous adsorption phosphorus removal packing can also be:

[0074] S11: Ingredients: 35% by weight of 120-mesh gypsum powder and 12% by weight of 400-mesh ferric hydroxide as total phosphorus adsorbent, 35% by weight of cement as binder, and 17.5% by weight of 200-mesh stone powder as aggregate, mixed evenly to form 600 parts of mixture (total weight is calculated as 1000 parts).

[0075] S12: Foaming: Add 0.5 parts by weight of sodium dodecylbenzenesulfonate to 399.5 parts by weight of water and stir thoroughly to produce a large amount of foam;

[0076] S13: Pulping: Add the mixture obtained in S11 to the foaming liquid in S12, stir thoroughly, and prepare a slurry;

[0077] S14: Expansion molding: The slurry prepared by S14 is fed into a molding die to be cross-linked and molded into a porous solid material;

[0078] S15: Crushing: The extruded and cross-linked solids are fed into a crusher for crushing;

[0079] S16: Sieving: The crushed material is sieved to obtain adsorption and phosphorus removal filter media with particle sizes of 2-5mm, 5-10mm, 10-20mm, and 20-40mm.

[0080] The above are merely preferred embodiments of this utility model and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A floating island-type water purification device, characterized in that, The device includes an air intake pipe (2), a buoyancy device (5), a buoyancy auxiliary device (6), an encapsulation structure (7), an aeration device (8), and a solar energy system (1); The buoyancy assist device (6) is located on the outer periphery of the buoyancy device (5); the buoyancy device (5) is provided with holes (5-2) for accommodating aquatic plants (3); The connecting member (4) passes through the thickness direction of the buoyancy device (5) and is connected to the encapsulation structure (7) to fix the buoyancy device (5) and the encapsulation structure (7) together; the encapsulation structure (7) is used to load the aeration device (8) and the packing (9); one end of the suction pipe (2) is connected to the air inlet of the aeration device (8), and the other end of the suction pipe (2) extends out of the buoyancy device (5) and communicates with the atmosphere; The solar energy system (1) supplies power to the aeration device (8).

2. The floating island-type water purification device as described in claim 1, characterized in that, The buoyancy device (5) includes at least one float layer, the upper layer being the first float layer, which can be used to place aquatic plants (3), and the lower layer being the second float layer. One end of the connecting member (4) is connected to the encapsulation structure (7), and the other end of the connecting member (4) passes through the first float layer and the second float layer to connect the float layer to the encapsulation structure (7).

3. The floating island-type water purification device as described in claim 2, characterized in that, The floating plate layer includes at least two floating plates, which are connected to each other to form the floating plate layer. The floating plate has a hole in the middle for accommodating aquatic plants (3). The floating plate has a first bolt fixing point (5-1) at the corner. The floating plate has a connecting member fixing point (5-3) around its perimeter.

4. The floating island-type water purification device as described in claim 3, characterized in that, The connecting member (4) includes an upper member (4-2) and a lower member (4-3), which are detachably connected.

5. The floating island-type water purification device as described in claim 4, characterized in that, The lower component (4-3) is a second U-shaped structure, and the bottom of the second U-shaped structure is attached to the frame of the encapsulation structure (7).

6. The floating island-type water purification device as described in claim 4, characterized in that, The upper component (4-2) is a first U-shaped structure, and the end of the opening of the first U-shaped structure is provided with an outwardly extending first tongue. The end of the opening of the lower component (4-3) is provided with an outwardly extending second tongue. The first tongue and the second tongue are connected by a second bolt (4-1). When fixing the buoyancy device (5) and the encapsulation structure (7), the second bolt (4-1) passes through the first tongue, the fixing point of the connecting component (5-3), and the second tongue.

7. The floating island type water purification device as described in claim 1, characterized in that: The packing material in the encapsulation structure (7) is a denitrification porous packing material or a phosphorus removal porous packing material, and the bulk density of the packing material is 410-820 kg / m³. 3 Specific surface area ≥ 8.5 m² 2 / g, compressive strength ≥3.5MPa, uniformity coefficient ≥0.6, porosity ≥70%, water absorption ≥65%, dry density ≤800kg / m³ 3 The mud content is ≤1%, the water absorption rate is ≥35%, and the particle size range is 3~80mm.

8. A floating island-type water purification device as described in any one of claims 1-7, characterized in that: The solar energy system (1) includes a solar panel (1-1), a bracket (1-2), a controller (1-3), a battery (1-5), and an inverter (1-4) mounted on the bracket (1-2). One end of the bracket (1-2) is connected to the solar panel (1-1), and the other end of the bracket (1-2) is connected to the buoyancy device (5). The controller (1-3) is electrically connected to the battery (1-5), and the inverter (1-4) is electrically connected to the battery (1-5) and the aeration device (8) respectively.

9. The floating island type water purification device as described in claim 1, characterized in that: The floating island type water purification device also includes a fixing device (11), which is movably connected to the encapsulation structure (7).

10. The floating island type water purification device as described in claim 1, characterized in that: The bottom of the aeration device (8) is provided with a jet aeration pipe (10). Both ends of the jet aeration pipe (10) extend outward from the aeration device (8), and a number of aeration holes are provided on the outward extending pipe body. The middle part of the jet aeration pipe (10) is connected to the air outlet pipe of the aeration device (8) through a connector.

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