A river multi-functional trash intercepting water treatment system with multiple filtering modes and a treatment method thereof

Abstract

The application discloses a multi-filtering-mode river multifunctional sewage treatment system and a treatment method thereof. The multi-filtering-mode river multifunctional sewage treatment system comprises a group of soft enclosures arranged along a river in sequence, and a plurality of independent water purification areas are formed; the soft enclosures are internally provided with phytofloating plants and ecological plant floating beds; and the soft enclosures are provided with vertical bank slope automatic liftable river water body filtering devices. The system realizes step-by-step filtering and regional division of water bodies, and improves filtering efficiency through innovative filtering cloth design and application of the multi-channel soft enclosures. Meanwhile, the system adopts hydrophilic polymer materials and super-hydrophobic polymer materials, and combines biological filtering with physical filtering, so that water quality is effectively purified. The system is also designed with in-situ functional treatment areas, water plants are planted, and functional fillers are added, so that the water treatment efficiency and effect are improved.

Description

Technical Field

[0001] This invention relates to the field of water treatment technology, specifically to a multi-functional wastewater interception and treatment system for rivers with multiple filtration modes and its treatment method. Background Technology

[0002] In today's world, the protection and rational use of water resources has become a global challenge. Traditional water treatment systems, such as sedimentation, filtration, and disinfection, while capable of purifying water to some extent, often suffer from drawbacks such as low efficiency, high cost, and difficulty in adapting to complex water quality conditions. Especially when dealing with complex water bodies containing multiple pollutants, single water treatment technologies often fall short of achieving ideal purification results.

[0003] Limitations of existing technologies, including filtration efficiency issues: Traditional filtration systems typically use a single filter medium, which is insufficient to effectively remove fine particles and dissolved contaminants from water. This results in treated water that may still contain harmful substances, affecting water reuse and safe use. Insufficient adaptability: As source water quality constantly changes, traditional water treatment systems often lack sufficient flexibility and adaptability, making it difficult to quickly adjust treatment strategies to cope with different water quality conditions. Environmental impact: Many traditional water treatment methods rely on chemical agents, which not only increases treatment costs but may also cause secondary pollution to the environment. Energy consumption: Some water treatment technologies require significant energy consumption, which not only increases operating costs but also fails to meet current environmental protection requirements for energy conservation and emission reduction.

[0004] With increasing societal awareness of environmental protection, the market demand for efficient, environmentally friendly, and economical water treatment technologies is growing. This is particularly true in areas such as industrial water use, drinking water supply, and river management, where the requirements for water treatment technologies are becoming increasingly stringent. Therefore, developing a new type of water treatment system that can adapt to different water quality conditions while achieving efficient purification, energy conservation, and environmental protection has become an important direction for the development of water treatment technology. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-functional river sewage interception and treatment system with multiple filtration modes and a treatment method, which has high water treatment efficiency.

[0006] To address the problems of the prior art, the present invention adopts the following technical solution: In the first aspect, this application provides a multi-functional sewage treatment system for rivers with multiple filtration modes; Secondly, this application provides a treatment method for a multi-functional wastewater interception and treatment system for rivers with multiple filtration modes.

[0007] The first aspect of this application provides a multi-functional river wastewater treatment system with multiple filtration configurations. This system includes a series of flexible enclosures arranged sequentially along the river channel, forming multiple independent water purification zones. The interiors of the flexible enclosures are equipped with floating plants, ecological plant floating beds, and packing materials. Vertical, automatically adjustable, and retractable river water filtration devices are installed between the flexible enclosures. As one of the core structures of the system, the multiple flexible enclosures first perform stratified filtration and zone division of the water. Different enclosures are equipped with filter cloths of different pore sizes. When water flows through these enclosures sequentially, larger particles are initially blocked by the larger pore sizes. As the water continues to flow, it passes through filter cloths with progressively smaller pore sizes, gradually removing smaller particles and impurities. This achieves step-by-step filtration of the water, greatly improving filtration efficiency.

[0008] The different treatment zones defined by the soft enclosures can also be used for in-situ functional treatment. Planting aquatic plants in specific areas allows them to absorb nutrients such as nitrogen and phosphorus from the water, reducing the risk of eutrophication, increasing biodiversity, and improving the aquatic ecosystem. Adding functional fillers such as activated carbon and zeolite to other areas allows these materials to adsorb harmful substances such as ammonia nitrogen, phosphorus, and heavy metals from the water, further enhancing the water purification effect.

[0009] Furthermore, the vertical bank slope automatic liftable river water filtration device includes a filter cloth, a high-density foam float, a reinforcing belt, a counterweight chain, an inflatable airbag float, a positioning float, a three-bar positioning rod, an air pump, a filter retaining wall, a vertical bank slope, and solar cells. The filter cloth is the core component of the filtration device. It is placed below the high-density foam float and comes into direct contact with the water flow to intercept and filter impurities in the water. This invention employs a five-layer twill weave, where five layers of weft yarns interweave with the warp yarns at a specific angle, creating a unique texture and structure. The twill weave, with flat warp yarns and split-film weft yarns, easily forms lateral permeable channels with large internal pores. This ensures a certain level of permeability while improving the filter cloth's anti-clogging performance. The interlacing angle between the warp yarns and each layer of weft yarns is 35 to 45 degrees to ensure high strength and stability of the geotextile in all directions. During the interlacing process, the weft yarns of different layers, through reasonable arrangement and combination, form a multi-layer composite structure, thereby improving the overall performance of the geotextile. The twill weave design makes the first, second, and third layers of the filter cloth large-pore hydrophilic polypropylene split-film filaments, providing a basis for microbial attachment. This allows a microbial film to easily form on the inner pore surface of the filter cloth, reducing the permeable area of ​​the filter cloth while improving the filtration accuracy of particulate matter in the water and introducing a certain amount of microorganisms for water purification. The microbial film formed on the inner pore surface of the filter cloth is relatively easy to clean.

[0010] High-density foam floats, evenly distributed at the top of the filtration unit, ensure the entire system floats on the water surface. Located above the filter cloth, they provide buoyancy for the entire unit. One or more reinforcing strips are placed at the edges or inside the filter cloth to enhance the durability and load-bearing capacity of the entire system; these reinforcing strips run throughout the filter unit, providing the necessary structural strength and stability.

[0011] A counterweight chain is attached to the bottom of the filter device to increase its weight and prevent it from shifting or tipping over due to excessive water flow. The inflatable airbag float section is located below the high-density foam float and can be inflated or deflated as needed to adjust the height of the entire filtration device to adapt to different water levels. The positioning float is placed at the edge of the filter device and used in conjunction with the three-bar positioning rod to keep the device in a fixed position in the river. Three-bar positioning rods connect to the positioning float and may extend to the sides or bottom of the river to enhance the positioning stability of the filtration device. An air pump, located on one side or in the center of the filter cloth, is connected to the inflatable airbag float via a pipe and is used to control the inflation and deflation of the airbag. The filter barrier wall is used in conjunction with the filter cloth and is installed on the upstream side of the filter cloth to guide water flow through the filter cloth and enhance the filtration effect. The vertical bank slope is used, and the filter cloth is set on the vertical bank slope, perpendicular to the riverbank slope, to ensure that the device is stably fixed in the river. Solar panels are installed above or beside the vertical bank slope to provide the necessary power for the air pump and other electronic equipment.

[0012] Furthermore, the filter cloth is woven from warp and weft yarns using a rapier loom. The weft yarn consists of a first layer of weft yarn, a second layer of weft yarn, a third layer of weft yarn, a fourth layer of weft yarn, and a fifth layer of weft yarn. The first layer of weft yarn is hydrophilic and anti-aging polypropylene (PP) split film yarn, the second layer of weft yarn is hydrophilic and anti-aging polypropylene (PP) split film yarn, the third layer of weft yarn is hydrophilic and anti-aging polypropylene (PP) split film yarn, the fourth layer of weft yarn is polyoxymethylene (POM) split film yarn, and the fifth layer of weft yarn is polyetheretherketone (PEEK) fiber.

[0013] Furthermore, the warp yarn is any one of high-strength, corrosion-resistant polyoxymethylene (POM) split film yarn, polyetheretherketone (PEEK) fiber, or anti-aging polypropylene (PP) flat yarn.

[0014] Furthermore, the filter cloth is made of hydrophilic or superhydrophobic polymer materials.

[0015] Hydrophilic polymer materials: Using hydrophilic polymer materials on the surface layer of the filter cloth with larger pores attracts water molecules, reduces the surface tension of water, and promotes water permeability. It also provides a favorable environment for microbial growth. Microbial growth environment: Microorganisms easily grow on the surface of hydrophilic polypropylene materials because they provide a moist environment conducive to microbial attachment and reproduction. When water passes through, microorganisms are carried in, forming a biochemical reaction-like environment that helps in biodegradation and water purification.

[0016] Superhydrophobic polymer materials: Superhydrophobic polymer materials are used on the surface layer of the filter cloth with small pores. They have extremely high water repellency, which can prevent water molecules from penetrating and reduce the attachment and growth of microorganisms.

[0017] Different zones of the filter cloth utilize materials with specific properties. In the more porous surface layer, hydrophilic polymers play a crucial role. These materials attract water molecules, reducing the surface tension of water and thus promoting water penetration. Simultaneously, the hydrophilic material creates a favorable environment for microbial growth. When water passes through these zones, microorganisms are introduced, forming an environment similar to a biochemical reaction. Here, microorganisms can biodegrade organic matter and other contaminants in the water, effectively purifying the water.

[0018] In the surface layer with smaller pores, superhydrophobic polymer materials, especially superhydrophobic polyoxymethylene fibers, are used. This material has extremely high water repellency, interacts almost no with water molecules, prevents water molecule penetration, and, due to its superhydrophobic properties, greatly reduces the attachment and growth of microorganisms. This reduces the risk of filter cloth clogging, while the superhydrophobic regions provide highly efficient physical filtration, intercepting fine particles. Thus, the hydrophilic polypropylene material region promotes microbial growth and biodegradation, while the superhydrophobic polyoxymethylene fiber region performs highly efficient physical filtration; the two are perfectly combined, achieving a synergistic effect of biological and physical filtration.

[0019] Furthermore, the hydrophilic polymer material is hydrophilic polypropylene, which provides a favorable environment for microbial growth. The surface of hydrophilic polypropylene readily supports microbial growth due to its moist environment, facilitating microbial attachment and reproduction. When water passes through, microorganisms are introduced, creating a biochemical reaction-like environment that aids in water biodegradation and purification.

[0020] The superhydrophobic polymer material is superhydrophobic polyoxymethylene fiber. It prevents microbial adhesion: the surface of superhydrophobic polyoxymethylene fiber does not easily support microbial growth. Its superhydrophobic properties reduce microbial adhesion, helping to prevent filter cloth clogging and maintain the long-term stable operation of the filtration system. It also prevents filter cloth clogging: superhydrophobic materials reduce the risk of filter cloth clogging, improving the efficiency and lifespan of the filtration system.

[0021] Combining biological and physical filtration: Hydrophilic and superhydrophobic materials are used in different areas of the filter cloth to achieve a combination of biological and physical filtration. The hydrophilic polypropylene material areas promote microbial growth and biodegradation, while the superhydrophobic polyoxymethylene fiber areas provide highly efficient physical filtration, intercepting fine particles.

[0022] Furthermore, the floating plants are one or a combination of several of the following: water caltrop, water lily, water snowflake, duckweed, water hyacinth, pondweed, duckweed, giant water lily, water caltrop, or large seaweed; Planting aquatic plants in specific treatment areas can absorb nutrients such as nitrogen and phosphorus from the water, reduce the risk of eutrophication, provide biodiversity, and improve the aquatic ecosystem.

[0023] Furthermore, the filler material is one or a combination of several of activated carbon, zeolite, volcanic rock, or perlite. It adsorbs harmful substances in the water, such as ammonia nitrogen, phosphorus, and heavy metals, further purifying the water quality.

[0024] The second aspect of this application provides a treatment method for a multi-functional river wastewater interception and treatment system with multiple filtration modes, comprising the following steps: (1) Set up soft enclosures in the river channel to form a clean water area; (2) Floating plants, ecological plant floating beds and filler are set up inside the soft enclosure; (3) Use filter cloth to intercept solid particles and suspended sediment in water; (4) The system is powered by solar cells to achieve automated control.

[0025] Furthermore, the material and pore size of the filter cloth can be selected and adjusted according to different water qualities and treatment requirements. The five-fold twill weave filter cloth exhibits excellent comprehensive performance. In terms of filtration performance, its high filtration precision effectively intercepts fine particles, ensuring that treated wastewater meets high water quality standards. Simultaneously, its good air permeability ensures smooth water flow during filtration, reducing filtration resistance. Regarding strength, its extremely high tensile strength and tear resistance enable it to withstand various stresses in engineering projects and adapt to different construction environments. Its excellent drainage performance allows for rapid removal of moisture from the soil, preventing engineering problems caused by water accumulation and providing strong support for the stable operation of the project. Its outstanding abrasion resistance allows the filter cloth to resist external friction and scratches during long-term use, maintaining stable performance. In addition, corrosion resistance ensures long-term use in harsh environments such as wastewater, while UV resistance guarantees durability in outdoor environments.

[0026] Beneficial Effects: The system of this invention achieves step-by-step filtration and zone division of water through innovative filter cloth design and the application of multiple flexible enclosures, thereby improving filtration efficiency. Simultaneously, the system utilizes hydrophilic and superhydrophobic polymer materials, combining biological and physical filtration to effectively purify water quality. Furthermore, the system incorporates in-situ functional treatment zones, further enhancing water purification through the planting of aquatic plants and the addition of functional fillers. This design not only improves the efficiency and effectiveness of water treatment but also reduces the use of chemical agents, minimizing environmental impact and aligning with sustainable development requirements.

[0027] Compared with the prior art, the present invention has the following advantages: (1) High-efficiency filtration: Through the design of multiple soft enclosures and filter cloths with different pore sizes, the system achieves step-by-step filtration of water, effectively removing suspended particles, silt, and other impurities, thus improving filtration efficiency. Synergistic effect of biological and physical filtration: Different areas of the filter cloth use hydrophilic and superhydrophobic polymer materials to promote microbial growth and biodegradation, while providing high-efficiency physical filtration to intercept tiny particles, achieving an organic combination of biological and physical filtration. Improved water transparency: Test results from the examples show that the system can effectively improve water transparency, improve water quality, and provide a better living environment for aquatic organisms.

[0028] This filter material exhibits excellent anti-clogging properties, demonstrating a unique self-cleaning ability in complex environments with sludge accumulation. Even after long-term operation and exposure to large amounts of sludge, it effectively prevents clogging, maintains good filtration performance, and allows fluid to pass smoothly without the need for frequent manual cleaning, significantly improving the efficiency and stability of the filtration system in harsh clogging environments.

[0029] (3) Environmentally Friendly: The system design emphasizes the use of environmentally friendly materials, reducing the need for chemical treatment agents and minimizing negative environmental impacts, aligning with the development trend of green water treatment. Flexibility and Scalability: The system can be adjusted and optimized according to different water qualities and treatment needs, such as increasing the number of filtration stages or replacing with more efficient filter media to adapt to different application scenarios. Automated Control: Utilizing automated control technology, the system monitors water quality parameters in real time through sensors, automatically adjusting the operating status and parameters of the filtration units, thus improving the system's stability and reliability.

[0030] (4) Easy to maintain and operate: The design of the soft enclosure and filter cloth makes the system easy to maintain and replace. Even non-professionals can perform daily inspections and maintenance, reducing the difficulty of operation and maintenance costs. Multifunctionality: The system can not only effectively filter impurities in the water, but also further purify the water quality through in-situ functional treatment, such as planting aquatic plants and adding functional fillers, reducing the risk of eutrophication and improving the aquatic ecological environment.

[0031] (5) Wide range of application scenarios: The system is suitable for a variety of water treatment scenarios, including industrial water treatment, domestic drinking water treatment, river water body pollution control, sewage treatment and reuse, etc., and has a wide range of market application prospects. Resource recycling: By deeply treating river water body pollution control and sewage, it can meet the reuse standards, realize the recycling of water resources, reduce dependence on fresh water resources, and reduce sewage treatment costs.

[0032] (6) The filter cloth of the present invention significantly improves the wastewater filtration efficiency. The unique structure and yarn parameter design of the five-fold twill weave filter cloth enable it to achieve high filtration accuracy, less than 5 micrometers, effectively removing pollutants such as suspended solids, organic matter, and microorganisms from wastewater, ensuring the transparency of the filtered water. It also enhances the stability of the engineering structure. By providing high strength, good drainage performance, and reinforcement, it improves the overall stability and durability of the filter cloth. Furthermore, it reduces maintenance costs. Due to its excellent abrasion resistance, corrosion resistance, and UV resistance, the five-fold twill weave filter cloth is not easily damaged during long-term use, reducing the frequency of maintenance and replacement, and lowering the maintenance costs of the project.

[0033] (7) To meet the specific engineering requirements for higher strength, better stability, and superior performance of geotextiles, the filter cloth of this invention is specially designed as a five-fold twill weave geotextile for application in the field of wastewater filtration. This invention is adaptable to various engineering environments. The flame-retardant properties of this filter cloth enable its safe use in engineering environments with fire risks, while its stability and UV resistance within different pH ranges enable it to adapt to various complex engineering environments.

[0034] (8) The filter cloth of the present invention, through reasonable selection of yarn parameters, structure design and performance parameter requirements, exhibits excellent performance in the field of sewage filtration. The selection of yarn diameter and linear density optimizes the geotextile in terms of abrasion resistance, filtration performance, strength and durability. The selection of weave angle ensures uniform strength distribution of the geotextile in all directions, improving structural stability. The setting of the drainage coefficient ensures good drainage performance, prevents erosion and extends the service life of the geotextile. The control of abrasion rate and elongation at break improves the abrasion resistance and tensile strength of the geotextile. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of a multi-functional sewage interception and treatment system for rivers provided in an embodiment of this application.

[0037] Figure 2 This is a schematic diagram of an automatic liftable river water filtration device for vertical bank slopes provided in an embodiment of this application.

[0038] The figures in the diagram are labeled as follows: 1. Soft enclosure; 2. Floating plants; 3. Vertical bank slope automatic liftable river water filtration device; 4. Ecological plant floating bed; 5. Filler; 301. Filter cloth; 302. High-density foam float; 303. Reinforcing strip; 304. Counterweight chain; 305. Inflatable airbag float part; 306. Positioning float; 307. Three-bar positioning rod; 308. Air pump; 309. Filter retaining wall; 310. Vertical bank slope; 311. Solar cell. Detailed Implementation

[0039] To make the technical problems, technical solutions, and beneficial effects of this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0040] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0041] In this application, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, "at least one of a, b, or c", or "at least one of a, b, and c", can both mean: a, b, c, ab (i.e., a and b), ac, bc, or abc, where a, b, and c can be single or multiple.

[0042] It should be understood that in the various embodiments of this application, the order of the above processes does not imply the order of execution. Some or all steps may be executed in parallel or sequentially. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0043] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0044] The weights of the relevant components mentioned in the embodiments of this application can refer not only to the specific content of each component, but also to the proportional relationship between the weights of the components. Therefore, any scaling up or down of the content of the relevant components according to the embodiments of this application is within the scope disclosed in the embodiments of this application. Specifically, the mass described in the embodiments of this application can be a mass unit known in the chemical industry, such as µg, mg, g, or kg. Example 1

[0045] The present invention discloses a multi-filtration type river multi-functional sewage interception and treatment system, which includes a set of soft enclosures 1 arranged sequentially along the river to form multiple independent water purification areas; a vertical bank slope automatic liftable river water filtration device 3 is arranged between the soft enclosures 1; and floating plants 2, ecological plant floating beds 4 and filler 5 are arranged inside the soft enclosures 1.

[0046] The vertical bank slope automatic liftable river water filtration device 3 includes a filter cloth 301, a high-density foam float 302, a reinforcing belt 303, a counterweight chain 304, an inflatable airbag float part 305, a positioning float 306, a three-bar positioning rod 307, an air pump 308, a filter retaining wall 309, a vertical bank slope 310, and a solar cell 311; The filter cloth 301 is placed below the high-density foam float 302 and is in direct contact with the water flow to intercept and filter impurities in the water. The filter cloth 301 consists of five weft layers: a first layer, a second layer, a third layer, a fourth layer, and a fifth layer. The first and second layers are made of hydrophilic, anti-aging polypropylene (PP) split-film filaments; the third and fourth layers are made of polyoxymethylene (POM) split-film filaments; and the fifth layer is made of polyetheretherketone (PEEK) fiber. All five layers are made of existing technology. The POM split-film filament manufacturer is Tangshan Zhonghao Chemical Co., Ltd.; the EEEK fiber manufacturer is Jilin Zhongyan Polymer Materials Co., Ltd.

[0047] 1. Yarn parameters of filter cloth 301: Warp yarn: Material: High-strength, corrosion-resistant polyoxymethylene (POM) split film yarn, polyetheretherketone (PEEK) fiber, or anti-aging polypropylene (PP) flat yarn.

[0048] Diameter: 0.3 to 2.5 mm.

[0049] Weft yarns: First layer: Material: Hydrophilic anti-aging polypropylene (PP) split-film yarn. Increases the thickness, permeability, drainage capacity, and microbial affinity of the geotextile. Diameter: 0.5 to 1.5 mm. Second layer: Material: Hydrophilic anti-aging polypropylene (PP) split-film yarn, used to form drainage channels. Diameter: 0.4 to 1.2 mm. Third layer: Material: Hydrophilic anti-aging polypropylene (PP) split-film yarn, to form drainage channels for microbial biofilm adhesion. Diameter: 0.4 to 1.2 mm. Fourth layer: Material: Polyoxymethylene (POM) split-film yarn, improves the abrasion resistance and permeability of the geotextile. Diameter: 0.4 to 0.5 mm. Fifth layer: Material: Polyetheretherketone (PEEK) fiber, enhances the tensile strength, abrasion resistance, light resistance, and tear resistance of the geotextile. Diameter: 0.3 to 0.5 mm.

[0050] 2. Fabric structure parameters of filter cloth 301: Twill angle: 45 degrees.

[0051] Warp and weft density: 35 warp threads per centimeter, 30 weft threads per centimeter.

[0052] 3. Performance parameters of filter cloth 301: Filtration accuracy: less than 5 microns.

[0053] Equivalent aperture (O) 90 ): 0.15 mm.

[0054] Permeability coefficient: 1×10⁻² cm / s to 1×10⁻³ cm / s.

[0055] Fracture strength: 210 kN / m in the longitudinal direction and 180 kN / m in the latitudinal direction.

[0056] Acid and alkali resistance: Stable in the pH range of 3-12.

[0057] UV resistance: After a certain period of UV exposure, the intensity retention rate is greater than 80%.

[0058] The advantages of the filter cloth 301 of this invention: A unique five-layer structure design achieves multi-functional integration. Different weft yarns play different roles, such as increasing thickness and stability, providing drainage channels, enhancing tensile and tear resistance, and improving abrasion resistance, meeting diverse needs for wastewater filtration. Reasonable yarn parameter selection ensures excellent performance. A thicker yarn diameter increases the geotextile's abrasion resistance and puncture resistance, while a finer yarn diameter improves waterproofing and filtration performance. High linear density yarns enhance strength and durability, and combinations of yarns with different linear densities meet different performance requirements. Optimized interlacing angle improves overall performance. An interlacing angle of 35 to 45 degrees ensures uniform strength distribution in all directions, improving tensile strength and tear resistance, while also enhancing structural stability, reducing slippage and loosening between yarns, and improving durability. Low abrasion rate and appropriate breaking elongation enhance durability. The fourth layer of polyoxymethylene (POM) split-film weft yarn, with an abrasion rate of only 5%, improves the geotextile's abrasion resistance, making it less prone to damage during long-term use. The glass fiber weft yarn with a breaking elongation of 15% enhances the tensile strength, giving the geotextile a certain deformation capacity when subjected to tension, absorbing some energy, reducing stress concentration, and improving its resistance to damage.

[0059] High-density foam floats 302 are evenly distributed in the upper part of the filter device, located above the filter cloth 301, providing buoyancy for the entire device; One or more reinforcing strips 303 are provided at the edge or inside of the filter cloth 301 to enhance the durability and load-bearing capacity of the entire system. A counterweight chain of 304 is attached to the bottom of the filter device to increase the weight of the device and prevent it from shifting or tipping over due to excessive water flow. The inflatable airbag float 305 is located below the high-density foam float 302 and can be inflated or deflated to adjust the height of the entire filtration device to adapt to different water levels. The positioning float 306 is set at the edge of the filter device and is used in conjunction with the three-bar positioning rod 307 to keep the device in a fixed position in the river. The three-bar positioning rod 307 is connected to the positioning float 306 and may extend to the sides or bottom of the river to enhance the positioning stability of the filtration device. An air pump 308 is located on one side or in the center of the filter cloth 301 and is connected to the inflatable airbag float part 305 through a pipe to control the inflation and deflation of the airbag. The filter baffle 309 is used in conjunction with the filter cloth 301 and is installed on the upstream side of the filter cloth 301 to guide water flow through the filter cloth and enhance the filtration effect. The vertical bank slope 310, the filter cloth 301 is set on the vertical bank slope 310, perpendicular to the river bank slope 310, to ensure that the device is stably fixed in the river. Solar cells 311 are installed above or beside the vertical bank slope 310.

[0060] The filter cloth 301 is made of hydrophilic or superhydrophobic polymer material.

[0061] The hydrophilic polymer material is hydrophilic polypropylene, and the superhydrophobic polymer material is superhydrophobic polyoxymethylene fiber.

[0062] Floating plants 2 consist of a combination of seven species from the following: water chestnut, duckweed, duckweed, giant water lily, water caltrop, water chestnut, and large seaweed. Planting aquatic plants in specific treatment areas allows them to absorb nutrients such as nitrogen and phosphorus from the water, reducing the risk of eutrophication, providing biodiversity, and improving the aquatic ecosystem.

[0063] Packing material 5 is activated carbon. It adsorbs harmful substances in the water, such as ammonia nitrogen, phosphorus, and heavy metals, further purifying the water quality. Example 2

[0064] The difference between Example 2 and Example 1 is that the warp yarns of the filter cloth 301 are made of high-strength, corrosion-resistant polyoxymethylene (POM) split-film yarns. The floating plants 2 are a combination of seven species selected from water lily, water caltrop, water hyacinth, pondweed, duckweed, water chestnut, and large seaweed; the filler 5 is a combination of two species selected from volcanic rock and perlite. Example 3

[0065] The difference between Example 3 and Example 1 is that the warp yarns of the filter cloth 301 are made of polyetheretherketone (PEEK) fibers. The floating plant 2 is water chestnut; the filler 5 is a combination of two of activated carbon and volcanic rock. Example 4

[0066] The difference between Example 4 and Example 1 is that the warp yarn of the filter cloth 301 is made of anti-aging polypropylene (PP) flat yarn. The floating plants 2 are one or more of the following: water caltrop, water lily, water lily, duckweed, water hyacinth, pondweed, duckweed, giant water lily, water caltrop, or large algae; the filler 5 is a combination of two of the following: activated carbon and zeolite. Example 5

[0067] The difference between Example 5 and Example 1 is that the floating plant 2 is a combination of five of the following: water lily, duckweed, water hyacinth, pondweed and macroalgae; and the filler 5 is volcanic rock. Example 6

[0068] The present invention discloses a treatment method for a multi-functional river wastewater interception and treatment system with multiple filtration modes, comprising the following steps: (1) Set up a soft enclosure 1 in the river channel to form a clean water area; (2) Floating plants 2, ecological plant floating beds 4 and filler 5 are provided inside the soft enclosure 1; (3) Use filter cloth 3 to intercept solid particles and suspended sediment in the water; (4) The solar cell 311 provides energy to the system to achieve automated control.

[0069] The material and pore size of the filter cloth 301 can be selected and adjusted according to different water quality and treatment needs.

[0070] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope. The scope of protection of the present invention is defined by the appended claims, specification, and their equivalents.

Claims

1. A multi-functional wastewater interception and treatment system for rivers with multiple filtration modes, characterized in that: The multi-filtration river multi-functional sewage treatment system includes a set of soft enclosures (1) arranged in sequence to form multiple independent water purification areas; the soft enclosures (1) are equipped with floating plants (2), ecological plant floating beds (4) and fillers (5), and the soft enclosures (1) are equipped with vertical bank slope automatic liftable river water filtration devices (3); the vertical bank slope automatic liftable river water filtration devices (3) include filter cloth (301), high-density foam float (302), reinforcing belt (303), counterweight iron chain (304), inflatable airbag float part (305), positioning float (306), three-bar positioning rod (307), air pump (308), filter retaining wall (309), vertical bank slope (310) and solar cell (311); The filter cloth (301) is placed below the high-density foam float (302) and is in direct contact with the water flow to intercept and filter impurities in the water; High-density foam floats (302) are evenly distributed in the upper part of the filter device, located above the filter cloth (301), providing buoyancy for the entire device; One or more reinforcing strips (303) are provided at the edge or inside of the filter cloth (301) to enhance the durability and load-bearing capacity of the entire system; A counterweight chain (304) is attached to the bottom of the filter device to increase the weight of the device and prevent the device from shifting or tipping over due to excessive water flow. The inflatable airbag float (305) is located below the high-density foam float (302) and can be inflated or deflated to adjust the rise and fall of the entire filtration device to adapt to different water levels. A positioning float (306) is set at the edge of the filter device and used in conjunction with a three-bar positioning rod (307) to maintain the device in a fixed position in the river. A three-bar positioning rod (307) is connected to the positioning float (306) and may extend to the sides or bottom of the river to enhance the positioning stability of the filtration device; An air pump (308) is located on one side or in the center of the filter cloth (301) and is connected to the inflatable airbag float part (305) via a pipe to control the inflation and deflation of the airbag. The filter baffle (309) is used in conjunction with the filter cloth (301) and is installed on the upstream side of the filter cloth (301) to guide water flow through the filter cloth and enhance the filtration effect. A vertical bank slope (310) is provided, and a filter cloth (301) is installed on the vertical bank slope (310) and perpendicular to the vertical bank slope (310) to ensure that the device is stably fixed in the river channel; A solar cell (311) is disposed above or beside a vertical bank slope (310); the filter cloth (301) is a hydrophilic polymer material or a superhydrophobic polymer material; the hydrophilic polymer material is a hydrophilic polypropylene material, and the superhydrophobic polymer material is a superhydrophobic polyoxymethylene fiber; the filter cloth (301) is woven from warp and weft yarns using a rapier loom, and the weft yarn consists of a first layer of weft yarn, a second layer of weft yarn, a third layer of weft yarn, a fourth layer of weft yarn, and a fifth layer of weft yarn, wherein the first layer of weft yarn is a hydrophilic anti-aging polypropylene PP split film yarn, the second layer of weft yarn is a hydrophilic anti-aging polypropylene PP split film yarn, the third layer of weft yarn is a hydrophilic anti-aging polypropylene PP split film yarn, the fourth layer of weft yarn is a polyoxymethylene POM split film yarn, and the fifth layer of weft yarn is a polyetheretherketone (PEEK) fiber; the warp yarn is any one of polyoxymethylene POM split film yarn, polyetheretherketone (PEEK) fiber, or anti-aging polypropylene PP flat yarn.

2. The multi-filtration, multi-functional wastewater treatment system for rivers according to claim 1, characterized in that: The floating plants (2) are one or more of the following: water lily, water chestnut, duckweed, water lily, pondweed, duckweed, giant water lily, water caltrop, or large seaweed.

3. The multi-filtration, multi-functional wastewater treatment system for rivers according to claim 1, characterized in that: The filler (5) is one or a combination of activated carbon, zeolite, volcanic rock or perlite.

4. A treatment method for a multi-functional river wastewater interception and treatment system with multiple filtration modes as described in claim 1, characterized in that... Includes the following steps: (1) Set up a soft enclosure (1) in the river channel to form a clean water area; (2) Floating plants (2), ecological plant floating beds (4) and filler (5) are set inside the soft enclosure (1); (3) Use filter cloth (301) to intercept solid particles and suspended sediment in the water; (4) The system is powered by solar cells (311) to achieve automated control.

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