A marine aquaculture pen that prevents nuclear contamination and a method of using the same

Abstract

The application discloses a marine aquaculture fence capable of preventing nuclear pollution and a use method thereof, and relates to the field of marine nuclear pollution prevention and treatment. The aquaculture fence is mainly composed of a fence main unit, a water-supply power supply unit and auxiliary accessories. The fence main unit is in a sandwich structure as a whole, is composed of inner and outer functional carbon fiber mesh electrodes and an insulating support framework in the middle, and the two sides of the carbon fiber mesh are connected with the negative electrode and the positive electrode of the water-supply power supply unit to serve as cathodes and anodes. In the use process, the water-supply power supply unit can generate electric energy for the fence by using the seawater evaporation process, under the action of the electric field, the outer side anode carbon fiber mesh on the fence main unit can repel radioactive cations and adsorb radioactive anions, and the inner side cathode carbon fiber mesh can further adsorb the radioactive cations that penetrate through the anode carbon fiber mesh. The aquaculture fence can effectively prevent radioactive ions of nuclear pollution from entering the protected aquatic organism breeding area, thereby achieving the effect of preventing nuclear pollution.

Description

Technical Field

[0001] This invention relates to the field of marine nuclear pollution prevention and control, particularly to the field of marine aquaculture to prevent nuclear pollution, and specifically to a marine aquaculture enclosure that can prevent nuclear pollution and its method of use. Background Technology

[0002] Nuclear energy is one of humanity's most promising future energy sources. While clean and efficient, its widespread use has brought significant economic and social benefits. However, it also generates substantial amounts of radioactive waste, potentially threatening our health. Marine radioactive pollution, also known as the presence of radioactive nuclides in the ocean, refers to pollution caused by radioactive materials produced by human activities entering the marine environment. Its main sources include nuclear weapons testing, waste emissions from nuclear plants, nuclear power plants, and nuclear-powered ships, as well as the release of radioactive materials from nuclear accidents.

[0003] The impact of discharging nuclear wastewater into the ocean is a long-term, continuous process, with its effects on the marine environment, fishery resources, human health, and food safety showing a gradual, cumulative trend. Although the ocean has self-purification capabilities, some radioactive substances in the wastewater have long half-lives, making them difficult to decompose in seawater and coastal areas. Furthermore, the discharge area of ​​the Fukushima nuclear wastewater is located in the North Pacific fishing grounds, one of the world's most important marine fishing grounds. Seafood from these areas is highly likely to be contaminated with radioactive materials, particularly impacting aquaculture. Seafood passing through the Japanese coast is also affected by the nuclear wastewater. Radioactive nuclides in the marine environment enter marine food products through bioaccumulation and the food chain. When people consume contaminated seafood, these radioactive nuclides accumulate in their bodies, potentially leading to chronic diseases and even cancer with long-term consumption.

[0004] In traditional marine aquaculture, aquaculture enclosures typically only serve to prevent aquatic organisms from escaping, stop marine carnivores from preying on farmed aquatic organisms, and provide a living space; they cannot prevent nuclear contamination. Summary of the Invention

[0005] To address the shortcomings of existing technologies and the current problems of severe marine nuclear pollution, difficulties in marine aquaculture, and the easy entry of radioactive ions into protected aquaculture areas, this invention provides a marine aquaculture enclosure that can prevent nuclear pollution and its usage method. This invention has advantages such as requiring no additional energy input and being easy to use, and can be applied to marine aquaculture. The specific solution is as follows:

[0006] A marine aquaculture enclosure that can prevent nuclear contamination includes a main enclosure unit, a hydroelectric power supply unit, and auxiliary accessories.

[0007] Preferably, the main unit of the fence has a sandwich structure, consisting of functional carbon fiber mesh electrodes on the inner and outer sides and an insulating mesh skeleton fixedly connected.

[0008] Preferably, the two functional carbon fiber mesh electrodes include an inner carbon fiber mesh and an outer carbon fiber mesh, wherein the inner carbon fiber mesh is connected to the negative electrode of the water-volt power supply unit and acts as a cathode, and the outer carbon fiber mesh is connected to the positive electrode of the water-volt power supply unit and acts as an anode.

[0009] Preferably, the inner and outer carbon fiber meshes are woven from one or more of polyacrylonitrile-based carbon fiber, pitch-based carbon fiber, viscose-based carbon fiber, phenolic-based carbon fiber, and vapor-grown carbon fiber, and have good electrical conductivity and adsorption properties.

[0010] Preferably, the anode carbon fiber mesh surface is loaded with a polypyrrole layer, and the cathode carbon fiber mesh surface is loaded with Prussian blue or its analogues. The Prussian blue analogues can be one of ferric ferrocyanide, cobalt ferrocyanide, nickel ferrocyanide, copper ferrocyanide, zinc ferrocyanide, ferric ferrocyanide, cobalt ferrocyanide, nickel ferrocyanide, copper ferrocyanide, and zinc ferrocyanide.

[0011] Preferably, the insulating mesh skeleton is located between the two carbon fiber mesh electrodes, serving both insulating and supporting functions.

[0012] Preferably, the hydrophobic power supply unit consists of a hydrophilic matrix and a nanoporous carbon layer loaded on the surface of the matrix. One end is submerged below the water surface and the other end is above the water surface. The hydrophobic power supply unit can generate electricity by utilizing the seawater evaporation process to provide power to the main body of the fence.

[0013] Preferably, the hydrophilic matrix of the hydrovoltaic power generation unit is one of non-woven fabric, cotton fabric, wood, sponge, or polyacrylic acid hydrogel (such as polyacrylic acid hydrogel, polyacrylamide hydrogel, or ethylene oxide cross-linked hydrogel), and the nanoporous carbon layer is composed of one of carbon black, graphite particles, graphene, or carbon nanotubes.

[0014] Preferably, the auxiliary accessories include an outer frame, pontoons, and a base. The outer frame, pontoons, and base are installed on the main body of the enclosure and serve to support, provide buoyancy, and seal the bottom to prevent the escape of aquatic organisms, respectively. They are installed at the edges, top, and bottom of the main enclosure unit, and are fixedly connected to the main enclosure unit.

[0015] The above-mentioned method of using marine aquaculture enclosures that can prevent nuclear contamination involves connecting multiple enclosures to form a closed ring-shaped space. The bottom is sealed by connecting the enclosures with a base plate, and the entire enclosure is placed in the water of the marine aquaculture area. Aquatic organisms are raised in the internal space formed by the enclosure. The water-cooled unit generates electricity through the evaporation of water, providing an electric field for the enclosure body, with an electric field strength between 0.5V and 5V. Under the action of the electric field, the carbon fiber mesh anode on the outside of the enclosure can adsorb radioactive anions (such as...) in seawater. 131 I), rejecting radioactive cations (such as 90 Sr、 134 Cs、 137 Cs), the carbon fiber mesh cathode inside the fence can further adsorb radioactive cations that pass through the anode carbon fiber mesh, thus achieving isolation from nuclear contamination.

[0016] Preferably, the aquaculture enclosure can be used for aquaculture in nearshore and offshore areas, and has the function of preventing nuclear pollution caused by the discharge of nuclear wastewater into seawater, thereby keeping seafood away from nuclear pollution, making it possible to vigorously develop the marine aquaculture industry and obtain great economic benefits. It can not only reduce seawater pollution, but also provide people's tables with healthy seafood.

[0017] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows:

[0018] (1) This invention proposes a marine aquaculture fence that can prevent nuclear pollution and its usage method;

[0019] (2) The aquaculture fence in this invention can effectively prevent radioactive ions from nuclear contamination from entering the protected aquatic organism aquaculture area, thereby preventing the aquatic organisms from being contaminated and thus preventing nuclear contamination.

[0020] (3) The water-volt power supply unit in this invention can generate current by the evaporation of seawater, and has the advantages of not requiring additional energy input and being easy to use;

[0021] (4) The method of use in this invention is simple to operate, highly applicable and practical, and can be widely applied in the field of aquaculture. Attached Figure Description

[0022] Figure 1 The diagram shows a structural schematic of a marine aquaculture enclosure that can prevent nuclear contamination.

[0023] Figure 2 The image shown is an enlarged view of the water-volt power supply unit.

[0024] Figure 3 The diagram shows the connection method between the main unit and the hydroelectric power supply unit.

[0025] Figure 4The diagram shown is an overall schematic diagram of a marine aquaculture enclosure that can prevent nuclear contamination, provided in Embodiment 1 of the present invention.

[0026] In the diagram: 1. Main fence unit; 2. Hydroelectric power supply unit; 3. Floating pontoon; 4. Outer frame; 5. Inner carbon fiber mesh; 6. Insulation support frame; 7. Outer carbon fiber mesh; 8. Chassis;

[0027] The above description of the main component symbols, together with the accompanying drawings and specific embodiments, provides a more detailed explanation of the present invention. Detailed Implementation

[0028] The embodiments of the present invention will be further described below with reference to the accompanying drawings. The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] Example 1

[0030] Reference Figure 1 , Figure 2 , Figure 3 This embodiment provides a marine aquaculture enclosure that can prevent nuclear contamination and can be used in the field of marine aquaculture to prevent nuclear contamination.

[0031] The aquaculture enclosure structure includes a main enclosure unit 1, a hydroelectric power supply unit 2, and auxiliary accessories. The main enclosure unit 1 has a sandwich structure, consisting of inner and outer functional carbon fiber mesh electrodes 5 and 7, and an insulating mesh skeleton 6. The inner carbon fiber mesh 5 is connected to the negative electrode of the hydroelectric power supply unit 2, acting as the cathode, while the outer carbon fiber mesh 7 is connected to the positive electrode of the hydroelectric power supply unit 2, acting as the anode. The insulating mesh skeleton 6 is located between the two carbon fiber mesh electrodes 5 and 7, providing insulation and support. The hydroelectric unit 2 consists of a hydrophilic matrix and a nanoporous carbon layer loaded on the matrix surface. One end is submerged below the water surface, and the other end is above the water surface, providing power to the main enclosure unit. Auxiliary accessories, including an outer frame 4, floats 3, and a base plate 8, are installed on the main enclosure unit 1, providing support, buoyancy, and bottom sealing to prevent escape of aquatic organisms, respectively. They are installed at the edges, top, and bottom of the main enclosure unit. The cathode uses a polyacrylonitrile-based carbon fiber mesh loaded with Prussian blue. The preparation process is as follows: a 0.1M FeCl3 solution and a 0.1M K4Fe(CN)6 solution are prepared separately. The two solutions are mixed in equal volumes to undergo a chemical reaction to synthesize Prussian blue powder. Then, the powder is dispersed in ethanol (concentration of 0.3 g / ml) to obtain a dispersion. Nafion solution (5 wt.%) accounting for 40% of the volume of the dispersion is added, and the mixture is ultrasonically dispersed to obtain a Prussian blue slurry. Then, the coating is applied to a carbon fiber mesh made of polyacrylonitrile fiber using a scraping method; the anode is a phenolic carbon fiber mesh loaded with a polypyrrole layer, which is prepared by electrochemical deposition of polypyrrole onto the phenolic carbon fiber mesh (purchased from Xinyan New Materials Technology Co., Ltd.). The specific method is as follows: an electrodeposition solution containing 0.05M pyrrole, 0.25M hydrochloric acid and 0.1M potassium chloride is prepared, the phenolic carbon fiber mesh is used as the anode and a titanium sheet is used as the cathode, and electrochemical deposition is carried out for 30 minutes under a constant current of 10mA to obtain a polypyrrole layer on the phenolic carbon fiber mesh; the float 3 is a cylindrical float made of pure composite foam material made of polypropylene, purchased from Hengshui Runhai Plastic Products Co., Ltd. The water-powered power supply unit 2 is an asymmetrically wetted cotton fabric loaded with carbon black. Its preparation process involves coating commercially available carbon black onto the symmetrically wetted cotton fabric. Specifically, XC-72 carbon black purchased from the scientific materials station is prepared into a 1M carbon black slurry, which is then coated onto the symmetrically wetted cotton fabric using a flat-plate coating method, followed by drying. The base 8 is a support base, made of commercially available 20-mesh stainless steel woven mesh.

[0032] The above-mentioned method of using marine aquaculture enclosures that can prevent nuclear contamination involves connecting four enclosures end-to-end to form a closed ring-shaped space. The bottom is sealed by connecting the enclosures with a base plate 8. The entire enclosure is placed in the water of the marine aquaculture area, and aquatic organisms are raised in the space formed by the enclosure. The water-floating unit 2 is submerged in water at one end and exposed to air at the other end via a float 3. It generates electricity through the evaporation of water, providing an electric field with a strength of 1-3V for the enclosure body 1. The base plate 8 is located at the lower end and serves to seal the bottom to prevent the escape of farmed organisms. Under the action of the electric field, the anode of the carbon fiber mesh 7 on the outside of the enclosure can adsorb radioactive iodine ions in seawater and repel radioactive cations cesium ions and strontium ions. The cathode of the carbon fiber mesh 6 on the inside of the enclosure can adsorb the radioactive cations that pass through, thus achieving isolation from nuclear contamination. This marine aquaculture enclosure is deployed in nearshore areas, keeping seafood away from nuclear contamination. It not only provides healthy seafood for people's tables but also makes it possible to vigorously develop the marine aquaculture industry.

[0033] Example 2

[0034] Reference Figure 1 , Figure 2 , Figure 3 This embodiment provides a marine aquaculture enclosure that can prevent nuclear contamination and can be used in the field of marine aquaculture to prevent nuclear contamination.

[0035] The aquaculture enclosure structure includes a main enclosure unit 1, a hydroelectric power supply unit 2, and auxiliary accessories. The main enclosure unit 1 has a sandwich structure, consisting of inner and outer functional carbon fiber mesh electrodes 5 and 7, and an insulating mesh skeleton 6. The inner carbon fiber mesh 5 is connected to the negative electrode of the hydroelectric power supply unit 2, acting as the cathode, while the outer carbon fiber mesh 7 is connected to the positive electrode of the hydroelectric power supply unit 2, acting as the anode. The insulating mesh skeleton 6 is located between the two carbon fiber mesh electrodes 5 and 7, providing insulation and support. The hydroelectric unit 2 consists of a hydrophilic matrix and a nanoporous carbon layer loaded on the matrix surface. One end is submerged below the water surface, and the other end is above the water surface, providing power to the main enclosure unit. Auxiliary accessories include an outer frame 4, floats 3, and a base plate 8, installed on the main enclosure unit 1. These accessories provide support, buoyancy, and bottom sealing to prevent escape of aquatic organisms, and are installed at the edges, top, and bottom of the main enclosure unit. The floats 3 are made of pure composite foam material, the hydroelectric power supply unit 2 is an asymmetric wetted cotton fabric loaded with carbon black, and the base plate 8 is also included. The cathode uses a phenolic carbon fiber mesh loaded with nickel ferricyanide. Its preparation process is as follows: A 0.1M NiCl2 solution and a 0.1M K3Fe(CN)6 solution are prepared. The phenolic carbon fiber mesh (purchased from Xinyan New Materials Technology Co., Ltd.) is sequentially immersed in the NiCl2 solution and K3Fe(CN)6 solution for 10 minutes each, repeated 10 times. Nickel ferricyanide nanoparticles are grown in situ on the carbon fiber mesh. After rinsing and drying, it is applied. The anode uses a pitch-based carbon fiber mesh loaded with a polypyrrole layer. Its preparation process is as follows: Polypyrrole is deposited onto the pitch-based carbon fiber mesh by chemical deposition and dried. Specifically, a 0.1M pyrrole solution is prepared, and 0.05M FeCl3 is added to oxidize and polymerize it into polypyrrole, resulting in a polypyrrole solution. Then, a commercially available pitch-based carbon fiber mesh is immersed in the prepared polypyrrole solution for 30 minutes, removed, and dried to obtain pitch-based carbon fiber loaded with a polypyrrole layer. Float 3 is a cylindrical float made of composite foam material composed of polystyrene, phosphated phenolic resin, and graphite, purchased from Hengshui Runhai Plastic Products Co., Ltd. The supporting frame 6 uses a commercially available PVC plastic insulating frame. The hydroelectric power supply unit 2 is a hydroelectric device composed of graphene-loaded hydrogel. Its preparation process is as follows: 3.2g of graphene is weighed and dispersed in 250mL of deionized water, stirred, and sonicated for 30 minutes until completely dispersed. Then, the hydrogel synthesized using polyvinyl alcohol is cut into the required shape and placed in the mixture for 60 seconds to load the graphene, thus obtaining the hydroelectric power generation device. The chassis 8 is made of commercially available 20-mesh stainless steel mesh rigid material.

[0036] The above-mentioned method of using marine aquaculture enclosures that can prevent nuclear contamination involves connecting 100 enclosures end to end to form a closed ring-shaped space. The bottom is sealed by connecting the enclosures with a base plate 8. The entire enclosure is placed in the water of the marine aquaculture area, and aquatic organisms are raised in the space formed by the enclosure. The water-floating unit 2 is submerged in water at one end and exposed to air at the other end by means of a float 3. It generates electricity through the evaporation of water to provide an electric field for the enclosure body 1, with an electric field strength of 1-3V. The base plate 8 is located at the bottom and serves to seal the bottom to prevent the escape of farmed organisms. Under the action of the electric field, the anode of the carbon fiber mesh 7 on the outside of the enclosure can adsorb radioactive iodine ions in the seawater and repel radioactive cations cesium ions and strontium ions. The cathode of the carbon fiber mesh 6 on the inside of the enclosure can adsorb the radioactive cations that pass through, thus achieving isolation from nuclear contamination.

[0037] The working process of this embodiment is as follows:

[0038] When this enclosure is deployed in nearshore areas for aquaculture, 100 enclosures are connected end to end to form a closed, sealed space on all four sides. Each side contains 25 individual enclosures, each 10 meters long, creating a seawater space of approximately 100 acres. During the aquaculture process, samples are taken at intervals for testing. The results clearly show that the concentration of radioactive ions inside the enclosure is significantly lower than that outside, thus providing a safe living space for the aquatic products in this aquaculture area and further demonstrating the effective use of the enclosure.

[0039] The above description is merely a preferred embodiment of the present invention; however, 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 technical scope of the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A marine aquaculture enclosure that can prevent nuclear contamination, characterized in that: The aquaculture fence includes: the main fence unit, the hydroelectric power supply unit, and auxiliary accessories; The main unit of the fence has a sandwich structure, consisting of inner and outer carbon fiber meshes and an insulating mesh skeleton. The inner carbon fiber mesh is connected to the negative electrode of the hydroelectric power supply unit and acts as the cathode, while the outer carbon fiber mesh is connected to the positive electrode of the hydroelectric power supply unit and acts as the anode. The insulating mesh skeleton is located between the two carbon fiber mesh electrodes and serves as insulation and support. The hydroelectric power supply unit consists of a hydrophilic matrix and a nanoporous carbon layer loaded on the surface of the matrix. One end is submerged below the water surface and the other end is above the water surface, providing power to the main body of the fence. The auxiliary components include an outer frame, pontoons, and a base. The outer frame, pontoons, and base are all installed on the main body of the enclosure. The outer frame, pontoons, and base respectively serve to provide support, buoyancy, and bottom sealing to prevent the escape of farmed organisms.

2. The marine aquaculture enclosure for preventing nuclear contamination according to claim 1, characterized in that: The carbon fiber mesh is woven from one or more of the following: polyacrylonitrile-based carbon fiber, pitch-based carbon fiber, viscose-based carbon fiber, phenolic-based carbon fiber, and vapor-grown carbon fiber.

3. The marine aquaculture enclosure for preventing nuclear contamination according to claim 1, characterized in that: The outer carbon fiber mesh surface is loaded with a polypyrrole layer, and the inner carbon fiber mesh surface is loaded with one of the following: Prussian blue, ferric ferrocyanide, cobalt ferrocyanide, nickel ferrocyanide, copper ferrocyanide, zinc ferrocyanide, ferric ferrocyanide, cobalt ferrocyanide, nickel ferrocyanide, copper ferrocyanide, and zinc ferrocyanide.

4. The marine aquaculture enclosure for preventing nuclear contamination according to claim 1, characterized in that: The hydrophilic matrix of the water-volt power supply unit is one of non-woven fabric, cotton fabric, wood, textile, sponge, and hydrogel, and the nanoporous carbon layer is composed of one of carbon black, graphite particles, graphene, and carbon nanotubes.

5. The marine aquaculture enclosure for preventing nuclear contamination according to claim 1, characterized in that: The aforementioned aquaculture enclosure is used for aquaculture in nearshore or offshore areas.

6. The method of using the marine aquaculture enclosure for preventing nuclear contamination as described in any one of claims 1-5, characterized in that: During use, multiple enclosures are connected to form a closed ring-shaped space, with the bottom sealed by a chassis. The entire enclosure is placed in the water of a marine aquaculture area, and aquatic organisms are raised in the enclosed space. The hydroelectric power supply unit generates electricity through the evaporation of water, providing an electric field for the enclosure body. Under the action of the electric field, the carbon fiber mesh anode on the outside of the enclosure can adsorb radioactive anions in seawater and repel radioactive cations, while the carbon fiber mesh cathode on the inside of the enclosure can adsorb the radioactive cations that pass through, thus achieving isolation from nuclear contamination.

7. The method of use according to claim 6, characterized in that: The electric field strength is between 0.5 V and 5 V.

8. The method of use according to claim 6, characterized in that: The radioactive anion is 131 I, the radioactive cation is 90 Sr、 134 Cs、 137 At least one of Cs.

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