A cruise ship-mounted device and method for purifying a water body

Abstract

The application discloses a kind of water purification water body's pleasure boat carrying device and method, and the device includes hull fixed module, structure support module, power water inlet module, water purification module, tail resistance flow baffle, EPS material filling module.The device utilizes the kinetic energy generated by park pleasure boat and the like facilities in water surface movement to drive water body and adsorbent in the device to occur adsorption reaction, utilizes the kinetic energy of water body swing to promote powder and water body to occur adsorption reaction, finally, purified water is re-discharged into river and lake;The device is lower in cost than traditional method of decontamination, suitable for adsorbing various concentrations of heavy metal ions and eutrophication water body, compared with artificial wetland or plant floating island, floating bed and other biological treatment methods, the adsorption effect of plant powder on heavy metal ions and eutrophication substance is better.The device realizes secondary pollution-free, ecological environmental protection, efficient, green, economic and intelligent in-situ repair of lake water pollution.

Description

Technical Field

[0001] This invention relates to a boat-mounted device and method for purifying water, belonging to the field of water eutrophication and heavy metal pollution control. Background Technology

[0002] Globally, freshwater resources account for only 2.5% of total water resources. Rivers and lakes are vital water resources, closely related to human survival and serving as the foundation of ecology and the source of civilization. With rapid industrial development, excessive nutrient levels in rivers and lakes have led to severe eutrophication, posing a serious threat to aquatic ecosystems. Furthermore, the increasing pollution of rivers and lakes by heavy metals not only severely harms aquatic plants, animals, and the environment but also ultimately threatens human health through bioaccumulation in food chains and food webs. Therefore, efforts to address heavy metal pollution in rivers and lakes and improve eutrophication are urgently needed.

[0003] Wastewater, waste residue, and exhaust gases discharged during the production processes of industries such as mining, smelting, electroplating, instrumentation, coatings, glass, chemicals, and agriculture release heavy metal elements and their compounds into various water bodies through urban pipe networks, surface runoff, and rainfall, causing heavy metal pollution in water bodies. Heavy metal pollutants enter lakes via the hydrological cycle, primarily existing in particulate form, and their migration and transformation are complex and diverse, encompassing almost all physical, chemical, and biochemical processes in the water. Most heavy metal elements have multiple valence states, high reactivity, and can participate in various chemical reactions, exhibiting varying degrees of chemical stability and toxicity. Their form and toxicity also change with environmental conditions. Heavy metals are easily absorbed, concentrated, and enriched by organisms through ingestion, and can be amplified step-by-step through the food chain, reaching levels that harm apex organisms. During migration and transformation, under certain conditions, the transformation of form or phase transfer of heavy metals is somewhat reversible; however, heavy metals are non-degradable toxic substances and do not lose their toxicity due to the destruction of their compound structure. Current technology cannot quickly and effectively solve the problem of heavy metal pollution in rivers and lakes in a short period of time, and heavy metal pollution in water will continue to exist for a long time.

[0004] In aquatic environments, phosphorus mainly exists in three forms: orthophosphate, polyphosphate, and organophosphate. Orthophosphate, in particular, exhibits different ionic forms under different pH conditions, including H₂PO₄. - HPO4 2- and PO4 3- .

[0005] Organophosphates exist in water bodies in the form of organic matter and can be gradually converted into orthophosphates through biological oxidation. Orthophosphates are a common form of phosphorus in water and can be directly absorbed and utilized by plants. However, excessive phosphorus discharge into water bodies can cause a series of serious problems, the most significant of which is the accelerated growth and reproduction of algae, posing a great threat to aquatic environmental safety. This harm manifests itself on several levels: First, the rapid reproduction of algae and other plankton consumes large amounts of dissolved oxygen in the water, causing a sharp drop in dissolved oxygen levels. This change severely damages the living environment of aquatic plants and animals, making it difficult for many to survive due to lack of oxygen, ultimately leading to their decline and even the extinction of some species. Secondly, it negatively impacts fisheries development. Because the survival of aquatic plants and animals is threatened, the foundation upon which aquaculture depends is destroyed, making it impossible for aquaculture to operate normally and causing huge economic losses to related industries. Excessive phosphorus can also harm the biodiversity and stability of aquatic organisms. Excessive phosphorus levels disrupt the existing ecological balance, altering the structure and function of aquatic ecosystems and weakening their self-regulating capacity. Once water bodies are polluted by phosphorus, the quality of these vital water sources declines, leading to a shortage of usable water. Drinking contaminated water poses potential health risks, potentially triggering various diseases and severely impacting human health.

[0006] Therefore, the innovative research and development of technologies for the treatment of heavy metal ions and phosphate pollution in rivers and lakes should receive further attention and emphasis. This is of great significance for ensuring the safe supply of drinking water for humans, maintaining the balance and stability of the ecosystem, and promoting the sustainable development of society and the economy.

[0007] Traditional methods for treating heavy metal pollution in water bodies include chemical precipitation, ion exchange, membrane electrolysis, and biosorption. However, these methods all have limitations in treating heavy metal pollution in rivers and lakes, such as high cost, difficulty in control, minimal effects, and high manpower and material consumption. For example, chemical precipitation involves adding chemical precipitants such as hydroxides, sulfides, and carbonates to water bodies containing heavy metals. The heavy metal ions react chemically with the precipitant to form insoluble precipitates, which are then separated and removed from the water. For instance, adding lime slurry to cadmium-containing wastewater causes cadmium ions to react with hydroxide ions to form cadmium hydroxide precipitate. This method is simple to operate and relatively inexpensive, but large amounts of precipitant can generate large amounts of sludge, and some heavy metal precipitates may redissolve due to environmental conditions. Currently, my country's research on biosorption technology for water pollution treatment is still in its early stages. For example, in a water heavy metal removal project in Jinan City, the fruit peel modified three-dimensional network heavy metal adsorption membrane and cellulose modified multi-level porous clay adsorbent developed by the Engineering Research Institute of China Construction Eighth Engineering Bureau were applied, and some results were achieved. However, there are still problems such as limited applicable scope, unstable adsorption effect for different water qualities, narrow raw material procurement channels, complex preparation process, and large equipment investment.

[0008] Currently, phosphorus treatment methods mainly include biological methods, ion exchange methods, electrochemical methods, membrane separation methods, constructed wetland methods, and adsorption methods. Chemical methods utilize chemical agents to react with phosphorus in water, forming insoluble precipitates, which are then removed through solid-liquid separation. Biological phosphorus removal works by polyphosphate-accumulating bacteria absorbing phosphorus under anaerobic conditions and releasing it under aerobic conditions, achieving phosphorus removal through the discharge of phosphorus-containing sludge. Ion exchange methods utilize materials with ion exchange capabilities to exchange phosphate ions. Common materials include natural and synthetic resins. Electrochemical methods use anode materials such as aluminum and iron to electrolyze and generate metal cations, which then precipitate with phosphorus in the water to form metal phosphate salts. Membrane separation methods utilize selectively permeable membranes to recover phosphorus. Based on pore size, they can be classified as nanofiltration (NF), ultrafiltration (UF), and microfiltration (MF) membranes. Constructed wetlands are built and controlled by humans, and are similar to common natural wetlands. They mainly consist of a pretreatment system, an influent system, and a wetland system. Phosphorus removal in constructed wetlands primarily involves several aspects, including filter media interception, microbial absorption and transformation, and plant absorption.

[0009] In recent years, adsorption has gradually come into view. It is considered an economical and effective method of pollution removal. Its principle is to utilize solid materials with well-developed porous structures to undergo physicochemical reactions with heavy metal ions and phosphates in water, such as ion exchange, surface precipitation, and ligand exchange, thereby achieving the purpose of pollution removal. Adsorbents with good ecological benefits include biochar, activated carbon, and plant powder adsorbents.

[0010] Existing methods for treating heavy metals in water environments either have high technical requirements and high manufacturing and research and development costs, or may cause secondary pollution.

[0011] (1) Existing chemical methods are too costly, require large amounts of reagents, and may cause other potential harm to water bodies. They also generate a large amount of sludge, causing secondary pollution. Electrochemical methods consume a lot of electricity, have high operating costs, and produce a large amount of sediment. As the reaction continues, the removal effect will decrease over time. They are not suitable for field operations.

[0012] (2) Among physicochemical methods, membrane separation is an emerging method with high efficiency and no secondary pollution, but the filter membranes used cannot simultaneously achieve low cost and simple manufacturing process. Ion exchange method has the risk of secondary pollution and is easily affected by impurities. It cannot directly treat heavy metals and eutrophication in water bodies, and water pretreatment is required. The water purification equipment is relatively complex and the process is cumbersome. Ion exchange functional materials are expensive, have poor selective removal, and their exchange capacity is affected by various factors, making them unsuitable for large-scale application.

[0013] (3) Biological methods have shown many advantages in the removal of phosphorus heavy metal ions. However, the key to biological methods is to ensure the survival rate of microorganisms, which places high demands on process operation and control. Moreover, the water bodies treated by biological methods often cannot directly meet the national minimum phosphorus discharge standards and need to be supplemented by other methods. Therefore, the operation and control of biological processes have high requirements, and their flexibility and adaptability are insufficient.

[0014] (4) Traditional adsorption methods involve chemical and physical adsorption, and depending on the adsorbent material, they may also include biological adsorption. Many highly efficient adsorbents, such as activated carbon, carbon nanotubes, and certain metal oxides, have complex preparation processes and expensive raw materials, resulting in high production costs. Most adsorbents lack specificity for the adsorption of heavy metal ions and eutrophic substances. While adsorbing target heavy metal ions and eutrophic substances, they may also adsorb other ions or substances in the water, affecting the adsorption effect on target heavy metals and eutrophic substances. The regeneration process of many adsorbents is not easy. Some physical regeneration methods (such as heating and depressurization) may require a large amount of energy and the regeneration effect is unstable; chemical regeneration methods may use a large amount of chemical reagents, leading to secondary pollution problems, and may also damage the structure and performance of the adsorbent, shortening its service life.

[0015] Chinese Patent Publication No. CN 119284058 A discloses an ecological floating device and method for removing heavy metals from water. Specifically, the following steps are disclosed: a control system controls a propulsion unit, which drives a mobile platform to change its adsorption point in the water. The propulsion unit automatically cruises according to the route and dwell time set by the control system. A data transmission module transmits the position and direction of the mobile platform to the control system in real time. The control system controls a miniature diaphragm pump to extract heavy metal wastewater from a certain depth in the water according to a set length. A remote control switch and timer control the start-up and operation time of the miniature diaphragm pump, which pumps water to a pressure tank. The heavy metal wastewater passes through a first filter tank and a second filter tank for adsorption, and the de-adsorbed water is then discharged back into rivers and lakes.

[0016] However, the vessel is large and expensive, making it more suitable for pollution control in scientific research projects or large bodies of water with complex pollution distribution. In practical applications, the device is limited in scenarios where pollution control investment is limited, the scale is small, and the pollution distribution is relatively stable, such as parks, lakes, and urban rivers. Summary of the Invention

[0017] To address the shortcomings of the aforementioned technologies, this invention proposes a water purification device mounted on a park boat, compatible with solid adsorbents such as activated carbon and biochar. Compared to traditional methods, this device offers lower pollution removal costs and is suitable for adsorbing various concentrations of heavy metal ions and eutrophic water bodies. Utilizing the kinetic energy generated by the movement of park boats and other facilities on the water surface, the device drives an adsorption reaction between the water and the adsorbent within the device. Compared to biological treatment methods such as artificial wetlands, floating islands, or floating beds, plant powder exhibits superior adsorption effects on heavy metal ions and eutrophic substances. The device can be mounted on or around dynamic or static facilities on or around park boats, is easy to disassemble and reassemble, and offers high flexibility and low operational complexity, allowing visitors to participate in water pollution control while enjoying their visit.

[0018] The technical solution of the present invention is as follows: a cruise ship carrying device for purifying water, the device including a hull fixing module, a structural support module, a power water inlet module, a water purification module, a stern flow-blocking baffle, and an EPS material filling module;

[0019] The hull fixing module is installed on the hull it is mounted on. The bottom of the hull fixing module is connected to the structural support module. There are two structural support modules located on both sides of the hull. The front end of each structural support module is equipped with a power water inlet module. Each structural support module has a water purification module inside. The rear end of each structural support module is equipped with a stern flow baffle. The EPS material filling module is located in the gap of each structural support module.

[0020] Furthermore, the hull fixing module includes one or more telescopic brackets and one or more fixing devices. Each telescopic bracket includes one crossbar and two bottom bars. The tops of the two bottom bars are respectively connected to the two ends of the crossbar. The bottoms of the two bottom bars are installed on the fixing device. The fixing device is connected to the structural support module. The crossbar is fixed to the hull.

[0021] Furthermore, the structural support module includes a streamlined outer shell and an aluminum alloy bracket. Two aluminum alloy brackets are provided and installed inside the streamlined outer shell respectively. The fixture is fixed to the aluminum alloy bracket. The power water inlet module includes a variable angle counterflow baffle and a water inlet. The water inlet is a multi-hole water inlet opened at the front end of the streamlined outer shell. The variable angle counterflow baffle is installed obliquely at the front end of the streamlined outer shell. The water purification module includes a power water storage tank, a primary filtration tank, a plant powder adsorption tank, a secondary filtration tank, and a tail treatment tank. Each tank is arranged sequentially from the front end inside the streamlined outer shell to the rear end inside the streamlined outer shell. An acrylic baffle is provided between each tank. The acrylic baffle has multiple holes for water flow. The tail flow obstruction baffle is installed at the rear end of the streamlined outer shell in a removable manner. The tail treatment tank is filled with activated carbon and fluffy cotton. The primary filtration tank and the secondary filtration tank are filled with PP, PE, and HDPE particles of different sizes. The plant powder adsorption tank is filled with packaged plant powder adsorbent. The tail flow obstruction baffle is installed at the rear end of the streamlined outer shell in a removable manner.

[0022] Furthermore, a filter screen can be installed at the water inlet of the power water inlet module to screen out large molecules or aquatic organisms.

[0023] Furthermore, the fastener is a ring-shaped square band welded from a steel structure.

[0024] Furthermore, the method for purifying water using a boat-mounted device to remove phosphates and heavy metal ions from water is characterized by the following specific steps:

[0025] (1) First, take samples of the corresponding water body to test the concentration of pollutants in the water body, and formulate a suitable mixed plant powder adsorbent based on the water environment conditions of the water body to be used.

[0026] (2) Adjust the size of the mounting device, the telescopic bracket, the variable angle countercurrent baffle, and the amount of plant powder adsorbent according to the size of the water area, the size of the boat, and the power source of the boat. Adjust the mounting device to the optimal height, that is, when the boat is stationary, the multi-hole water inlet of the power water inlet module is higher than the horizontal plane and the entire device has no vertical force on the boat. The process of fixing the device to the aluminum alloy bracket can be done manually or mechanically. The acrylic plate uses a low density and high hardness 1mm thickness, and is equipped with a high hardness and low mass aluminum alloy bracket that can bear the weight of an adult. Foot pedals can be designed to facilitate users to enter the cabin smoothly through the mounting device.

[0027] (3) After the user arrives at the cabin, before starting, pull out the tail baffle of the loading device. When the cruise ship is stationary, the water cannot enter the loading device because the multi-hole water inlet of the power water inlet module of the loading device is higher than the horizontal surface. At the same time, close the tail baffle. At this time, the detachable powder loading tank is in a completely closed state.

[0028] (4) When the cruise ship is moving, the kinetic energy of the ship causes the sewage to reach the height of the multi-hole inlet through the variable angle counterflow baffle to achieve the purpose of power water intake. After the sewage flows into the device, the sewage is stored in the power storage tank to a higher water level because the pore size of the primary filter tank is small. Then the sewage flows into the primary filter tank. The PP, PE and HDPE materials of different particle sizes in the primary filter tank can remove large-volume pollutants. The sewage continues to flow into the plant powder adsorption tank. The plant powder adsorbent achieves adsorption of heavy metal ions and phosphorus in the plant powder adsorption tank. The adsorbed water enters the secondary filter tank, where a small part of the leaked adsorbent is intercepted. The activated carbon and fluffy cotton filled at the tail treatment tank can adsorb pigments and odors in the water, prevent the packing material from leaking out, and purify the outflowing water to avoid secondary pollution.

[0029] (5) Depending on actual usage needs, open the water purification module every one or two weeks, replace the plant powder adsorbent and ecological filler, and carry out inspection and maintenance. After completion, repeat the above steps to achieve the purpose of water purification.

[0030] The beneficial effects of this invention are:

[0031] (1) This invention utilizes the kinetic energy generated when park boats and other facilities move in the water to achieve one-way flow of sewage, effectively promoting the reaction between water and plant powder adsorbents. It does not rely on additional power resources, significantly reducing operating costs and avoiding the risk of secondary pollution.

[0032] (2) The device of the present invention adopts a modular design, with tight connections between the components and easy disassembly, which greatly facilitates regular maintenance and repair. The detachable design makes it easy and quick to replace the plant powder adsorbent and ecological filler, further reducing the difficulty and cost of maintenance.

[0033] (3) The use of telescopic brackets not only ensures the stability and durability of the device, but also enables the device to adapt to different water environments and ship type requirements, demonstrating a high degree of flexibility.

[0034] (4) Experimental data show that the device equipped with the optimally matched plant powder adsorbent is effective for Zn 2+ Cd 2+ Cu 2+ The adsorption efficiency of heavy metal ions exceeds 95%, and for PO4 2-The adsorption efficiency reaches 90%. While removing heavy metal ions, the device can also effectively remove odors and filter large particulate impurities, maximizing ecological and economic benefits, and there is no risk of secondary water pollution throughout the process.

[0035] (5) This device can prepare different kinds of plant powder mixed adsorbents for heavy metal pollution in different waters, so that the device can maintain a high removal efficiency for heavy metal pollution in different waters.

[0036] (6) Unidirectional water flow management is achieved by setting up a power inlet module and a tail baffle. When the device is stationary in the water, the water level cannot reach the height of the power inlet module and the tail baffle is closed, so the device does not operate. Before the device moves, the tail baffle is opened. During movement, the variable-angle counter-current baffle lifts the water to the inlet height under the action of power. After the water flows in, due to the small pore size of the particles filled in the primary filter tank, the water flow is first stored in the power storage tank. After the power storage tank is full, unidirectional water flow management is achieved under the action of the power inlet and the water level difference between the tank. This reduces the cumbersomeness of manual operation; at the same time, an integrated water quality monitoring sensor can be installed to monitor water quality changes in real time and adjust the treatment strategy based on data feedback, thereby improving treatment efficiency.

[0037] (7) This invention is mainly for plant powder adsorbents, which are low in cost, have no secondary pollution, can significantly reduce treatment costs, achieve ecological and environmental protection goals, and have stable heavy metal ion removal efficiency under different water flow speeds and temperature conditions, and are widely applicable.

[0038] (8) The filling of EPS material provides sufficient buoyancy for the entire device, without adding extra burden to the hull. Under the premise of ensuring safety, convenience and aesthetics, ordinary people can also participate in the water purification work. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the hull fixing module and aluminum alloy installation structure of the present invention;

[0040] Figure 2 This is a schematic diagram of the installation structure of the retractable bracket and fixator of the present invention;

[0041] Figure 2 a is a structural schematic diagram of the retractable support of the present invention. Figure 2 b is a schematic diagram of the fixture structure;

[0042] Figure 3 This is a schematic diagram of the installation structure of the aluminum alloy bracket and streamlined shell of the structural support module of the present invention;

[0043] Figure 4 This is a schematic diagram of the installation structure of the streamlined shell and the tail baffle of the present invention;

[0044] Figure 5 Here are structural diagrams of each water purification tank;

[0045] Figure 6 This is a schematic diagram of the overall structure of the device of the present invention in conjunction with the ship hull;

[0046] The labels in the diagram are as follows: 1-Retractable bracket, 2-Fixer, 3-Aluminum alloy bracket, 4-Variable angle counterflow baffle, 5-Tail flow obstruction baffle, 6-Streamlined shell, 7-Acrylic baffle, 8-Power water storage tank, 9-Primary filter tank, 10-Plant powder adsorption tank, 11-Secondary filter tank, 12-Tail treatment tank. Detailed Implementation

[0047] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but the scope of protection of the present invention is not limited to the content described.

[0048] Example 1: As Figures 1-6 As shown, a water purification device for a cruise ship includes a hull fixing module, a structural support module, a power water inlet module, a water purification module, a stern flow-blocking baffle, and an EPS material filling module.

[0049] The hull fixing module is installed on the hull it is mounted on. The bottom of the hull fixing module is connected to the structural support module. There are two structural support modules located on both sides of the hull. The front end of each structural support module is equipped with a power water inlet module. Each structural support module has a water purification module inside. The rear end of each structural support module is equipped with a stern flow baffle. The gaps in each structural support module are filled with EPS material filling modules.

[0050] The hull fixing module includes two telescopic brackets 1 and four fixing devices 2. Each telescopic bracket 1 includes a crossbar and two bottom bars. The tops of the two bottom bars are connected to the two ends of the crossbar, and the bottoms of the two bottom bars are installed on the fixing devices 2. The fixing devices 2 are connected to the structural support module, and the crossbar is fixed to the hull.

[0051] The structural support module includes a streamlined outer shell 6 and an aluminum alloy bracket 3. Two aluminum alloy brackets 3 are installed inside the streamlined outer shell 6. A fixture 2 is fixed to the aluminum alloy bracket 3. The dynamic water inlet module includes a variable-angle counter-current baffle 4 and a water inlet. The water inlet is a multi-hole inlet opened at the front end of the streamlined outer shell 6. The variable-angle counter-current baffle 4 is installed obliquely at the front end of the streamlined outer shell 6. The water purification module includes a dynamic water storage tank 8, a primary filtration tank 9, a plant powder adsorption tank 10, a secondary filtration tank 11, and a tail-end treatment tank 12. These tanks sequentially extend from the front end of the streamlined outer shell 6 to the rear end. The outer casing 6 is located at the rear end, and each tank is equipped with an acrylic baffle 7. The acrylic baffle 7 has multiple holes for water to flow through. The tail flow-blocking baffle is installed at the rear end of the streamlined outer casing 6. The tail treatment tank 12 is filled with activated carbon and fluffy cotton. The primary filter tank 9 and the secondary filter tank 11 are filled with PP, PE and HDPE particles of different sizes. The plant powder adsorption tank 10 is filled with packaged plant powder adsorbent. The tail flow-blocking baffle 5 is installed at the rear end of the streamlined outer casing 6 in a removable manner. When the tail flow-blocking baffle 5 is closed, the interior of the streamlined outer casing 6 is in a closed state.

[0052] A filter screen is installed at the water inlet of the power water inlet module to screen out large molecules or aquatic organisms.

[0053] Fixture 2 is a ring-shaped square band welded from a steel structure.

[0054] The specific steps of this water purification method using a boat-mounted device to remove phosphates and heavy metal ions from water are as follows:

[0055] (1) First, take samples of the corresponding water body to test the concentration of pollutants in the water body, and formulate a suitable mixed plant powder adsorbent based on the water environment conditions of the water body to be used.

[0056] (2) Adjust the size of the mounting device, the telescopic bracket, the variable angle countercurrent baffle, and the amount of plant powder adsorbent according to the size of the water area, the size of the boat and the power source of the boat. Adjust the mounting device to the optimal height, that is, when the cruise ship is stationary, the multi-hole water inlet of the power water inlet module is higher than the horizontal plane and has no vertical force on the boat. The process of installing the fixing device 2 on the aluminum alloy bracket 3 can be done manually or mechanically.

[0057] (3) After the user arrives at the cabin, before starting, pull out the tail baffle of the loading device. When the cruise ship is stationary, the water cannot enter the loading device because the multi-hole water inlet of the power water inlet module of the loading device is higher than the horizontal surface. At the same time, close the tail baffle. At this time, the detachable powder loading tank is in a completely closed state.

[0058] (4) When the cruise ship is moving, the kinetic energy of the ship causes the sewage to reach the height of the multi-hole inlet through the variable angle counterflow baffle 4 to achieve the purpose of power water intake. After the sewage flows into the device, the sewage is stored in the power water storage tank 8 to a higher water level because the pore size of the primary filter tank 9 is small. Then the sewage flows into the primary filter tank 9. The PP, PE and HDPE materials of different particle sizes in the primary filter tank 9 can remove large-volume pollutants. The sewage continues to flow into the plant powder adsorption tank 10. The plant powder adsorbent in the plant powder adsorption tank 10 can adsorb heavy metal ions and phosphorus. The adsorbed water enters the secondary filter tank 11, where a small part of the leaked adsorbent is intercepted. The activated carbon and fluffy cotton filled at the tail treatment tank 12 can adsorb pigments and odors in the water, prevent the packing material from leaking out, and purify the outflowing water to avoid secondary pollution.

[0059] (6) Depending on actual usage needs, open the water purification module every one or two weeks, replace the plant powder adsorbent and ecological filler, and carry out inspection and maintenance. After completion, repeat the above steps to achieve the purpose of water purification.

[0060] The specific embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A boat-mounted device for purifying a water body, characterized by comprising: The device comprises a hull fixing module, a structure support module, a power intake module, a water purification module, a tail flow resistance baffle, and an EPS material filling module. The hull fixing module is installed on the carried hull, the bottom of the hull fixing module is connected with the structure support module, the structure support module is provided with two structure support modules respectively located at two sides of the hull, the front end of each structure support module is installed with the power intake module, the inside of each structure support module is provided with the water purification module, the rear end of each structure support module is installed with the tail flow resistance baffle, and the interspace of each structure support module is filled with the EPS material filling module. The hull fixing module comprises one or more telescopic supports (1) and one or more fixers (2), each telescopic support (1) comprises a crossbar and two bottom bars, the top of the two bottom bars is respectively connected with the two ends of the crossbar, the bottom of the two bottom bars is installed on the fixer (2), the fixer (2) is connected with the structure support module, and the crossbar is fixed on the hull. The structure support module comprises a streamlined shell (6) and an aluminum alloy support (3), the aluminum alloy support (3) is provided with two aluminum alloy supports (3) which are respectively installed in the inside of the streamlined shell (6), the fixer (2) is fixed on the aluminum alloy support (3), the power intake module comprises a variable-angle reverse flow baffle (4) and a water inlet, the water inlet is a porous water inlet which is formed at the front end of the streamlined shell (6), the variable-angle reverse flow baffle (4) is obliquely installed at the front end of the streamlined shell (6), the water purification module comprises a power water storage tank (8), a primary filtering tank (9), a plant powder adsorption tank (10), a secondary filtering tank (11) and a tail treatment tank (12), the tanks are sequentially arranged from the front end of the inside of the streamlined shell (6) to the rear end of the inside of the streamlined shell (6), and an acrylic baffle (7) is arranged between the tanks, a plurality of holes are formed in the acrylic baffle (7) for water flow, the tail flow resistance baffle (5) is installed at the rear end of the streamlined shell (6) in a plug-in manner, the tail treatment tank (12) is filled with activated carbon and fluffy cotton, the primary filtering tank (9) and the secondary filtering tank (11) are filled with PP, PE and HDPE particles with different sizes, and the plant powder adsorption tank (10) is filled with packaged plant powder adsorbent.

2. The water body purification device according to claim 1, wherein: A filter screen can be arranged at the water inlet of the power intake module to screen out macromolecular substances or aquatic organisms.

3. The water body purification system according to claim 1, wherein: The fixer (2) is a steel structure welded annular square belt.

4. The method of claim 1 to 3, wherein the water purifying method is characterized by, The specific steps are as follows: (1) Firstly, the pollutant concentration in the water body is detected by sampling, and the mixed plant powder adsorbent is proportioned based on the water environment conditions of the water body; (2) The size of the carried device, the telescopic support, the variable-angle reverse flow baffle and the amount of plant powder adsorbent are adjusted according to the size of the water area, the size of the ship and the source of the ship power, the carried device is adjusted to the most suitable height, that is, when the ship is stationary, the porous water inlet of the power intake module is higher than the position of the horizontal plane, and the whole device has no vertical force on the hull, and the process of installing the fixer (2) on the aluminum alloy support (3) can be installed manually or mechanically. (3) After the user reaches the cabin, the tail flow blocking baffle (5) of the carrying device is started to be pulled out. When the yacht is stationary, the water cannot enter the carrying device due to the higher porous water inlet of the power water inlet module than the horizontal water surface. At the same time, the tail flow blocking baffle is closed. At this time, the detachable powder carrying groove is in a completely closed state; (4) When the yacht is running, the kinetic energy of the ship causes the sewage to reach the height of the power water inlet through the variable-angle backflow baffle (4). After the sewage flows into the carrying device, the sewage is stored to a higher water level in the power water storage tank (8) due to the smaller aperture of the primary filtration tank (9). Then the sewage flows into the primary filtration tank (9), and the PP, PE, and HDPE materials of different particle sizes in the primary filtration tank (9) can remove large-volume pollutants. The sewage continues to flow into the plant powder adsorption tank (10), and the plant powder adsorbent in the plant powder adsorption tank (10) can adsorb heavy metal ions and phosphorus. The adsorbed water enters the secondary filtration tank (11), and a small part of the leaked adsorbent is intercepted here. The activated carbon and fluffy cotton filled in the tail treatment tank (12) can adsorb pigments and odors in the water body, prevent the leakage of the filler, purify the water flowing out, and avoid secondary pollution; (6) According to the actual use requirements, the water purification module is opened every week or two weeks, the plant powder adsorbent and ecological filler are replaced, and maintenance and maintenance are performed. After completion, repeat the above steps to achieve the purpose of water purification.

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