Multi-filtering-form multifunctional sewage blocking treatment system for river channel and treatment method of multi-filtering-form multifunctional sewage blocking treatment system

Abstract

The invention discloses a multi-filtering-form river channel multifunctional sewage blocking treatment system and a treatment method thereof.The multi-filtering-form river channel multifunctional sewage blocking treatment system comprises a group of soft enclosures which are sequentially arranged along a river channel, and a plurality of independent water purification areas are formed; floating plants and ecological plant floating beds are arranged in the soft enclosures, and a vertical bank slope automatic liftable river water body filtering device is arranged between the soft enclosures. According to the system disclosed by the invention, through innovative design of the filter cloth and application of a plurality of soft enclosures, step-by-step filtration and regional division of a water body are realized, and the filtration efficiency is improved. Meanwhile, the system adopts a hydrophilic high polymer material and a super-hydrophobic high polymer material, and combines biological filtration and physical filtration, so that the water quality is effectively purified. The system is further provided with an in-situ functional treatment area, and the water treatment efficiency and effect are improved by planting aquatic plants and adding functional filler.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and in particular to a multi-filtering river channel multifunctional sewage treatment system and a treatment method thereof. Background Art

[0002] In today's world, the protection and rational use of water resources has become a global challenge. With the rapid development of industrialization and urbanization, water pollution has become increasingly serious, which has put forward higher requirements for water treatment technology. Although traditional water treatment systems, such as sedimentation, filtration, disinfection and other methods, can purify water to a certain extent, they often have disadvantages such as low efficiency, high cost, and difficulty in adapting to complex water conditions. Especially when facing complex water bodies containing multiple pollutants, a single water treatment technology often cannot achieve the ideal purification effect.

[0003] Limitations of existing technologies, filtration efficiency issues: Traditional filtration systems usually use a single filter medium, which makes it difficult to effectively remove fine particles and soluble pollutants in the water. This results in the treated water quality still containing harmful substances, affecting the reuse and safe use of water. Insufficient adaptability: As the quality of water sources continues to change, traditional water treatment systems often lack sufficient flexibility and adaptability, and it is 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 a lot of energy consumption, which not only increases operating costs, but also does not meet the current environmental protection requirements of energy conservation and emission reduction.

[0004] As society's awareness of environmental protection increases, the market demand for efficient, environmentally friendly and economical water treatment technologies is growing. Especially in the fields of industrial water, domestic drinking water and river management, the requirements for water treatment technology are more stringent. Therefore, developing a new type of water treatment system that can adapt to different water quality conditions and achieve the goals of efficient purification, energy saving and environmental protection has become an important direction for the development of water treatment technology. Summary of the invention

[0005] The object of the present invention is to provide a multi-filtration river channel multifunctional sewage treatment system with high water treatment efficiency and a treatment method thereof.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is as follows:

[0007] In the first aspect, the present application provides a multi-filtering multi-functional river sewage treatment system;

[0008] In a second aspect, the present application provides a treatment method for a river multifunctional sewage treatment system with multiple filtration forms.

[0009] The first aspect of the present application provides a multi-filtration form of a river multi-functional sewage treatment system, which includes a group of soft enclosures arranged in sequence along the river to form multiple independent water purification areas; floating plants, ecological plant floating beds and fillers are arranged inside the soft enclosures, and vertical slope automatic liftable river water filtering devices are arranged between the soft enclosures. As one of the core structures of the system, the multi-channel soft enclosures first perform layered filtration and regional division on the water body. Different enclosures are equipped with filter cloths with different apertures. When the water body flows through these enclosures in sequence, larger particles of impurities will be blocked first by the filter cloths with larger apertures. As the water flow continues to move forward, smaller and smaller particles and impurities are gradually removed through the filter cloths with gradually smaller apertures, realizing step-by-step filtration of the water body and greatly improving the filtration efficiency.

[0010] Different treatment areas divided by soft enclosures can also be treated in situ. Planting aquatic plants in specific areas can absorb nutrients such as nitrogen and phosphorus in the water, reduce the risk of eutrophication of water bodies, increase biodiversity, and improve the ecological environment of water bodies. Adding functional fillers such as activated carbon and zeolite in other areas can absorb harmful substances such as ammonia nitrogen, phosphorus, and heavy metals in the water, further improving the water purification effect.

[0011] Furthermore, the vertical bank slope automatic lifting river water filtering device includes a filter cloth, a high-density foam float, a reinforcement belt, a counterweight chain, an inflatable air bag float part, a positioning float, a three-rod positioning rod, an air pump, a filtering retaining wall, a vertical bank slope and a solar cell;

[0012] The filter cloth is the core part of the filter device. It is placed under the high-density foam float and directly contacts the water flow to intercept and filter impurities in the water.

[0013] The invention adopts a five-fold weft twill structure, so that five layers of weft yarns are interwoven with warp yarns at a specific angle, thereby forming a unique texture and structure. The twill structure in which the warp yarns are flat yarns and the weft yarns are split film yarns is very easy to form a lateral water-permeable channel with a large inner pore. In this way, while ensuring a certain water permeability effect, the anti-clogging performance of the filter cloth is also improved. The interweaving angle of the warp yarns and each layer of weft yarns is 35 to 45 degrees to ensure that the geotextile has high strength and stability in all directions. During the interweaving process, the weft yarns of different layers are reasonably arranged and combined to form a multi-layer composite structure, thereby improving the comprehensive performance of the geotextile. The design of the twill structure makes the first, second and third layers of the filter cloth hydrophilic polypropylene split film yarns with large pores, providing a basis for microbial attachment. In this way, a microbial film is easily formed on the inner pore surface of the filter cloth, which improves the water filtration accuracy of particulate matter in the water body while reducing the water permeability area of ​​the filter cloth, and brings in 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.

[0014] High-density foam floats are evenly distributed on the upper part of the filter device to ensure that the entire system can float on the water. Located above the filter cloth, it provides buoyancy for the entire device;

[0015] One or more reinforcing strips are arranged at the edge or inside of the filter cloth to enhance the durability and load-bearing capacity of the entire system; these reinforcing strips run through the entire filter device to provide the necessary structural strength and stability.

[0016] A weighted iron chain is connected to the bottom of the filter device to increase the weight of the device and prevent the device from shifting or turning over due to excessive water flow;

[0017] The inflatable airbag float part is located below the high-density foam float and can be inflated or deflated as needed to adjust the rise and fall of the entire filter device to adapt to different water levels;

[0018] The positioning float is set at the edge of the filter device and is used in conjunction with the three-rod positioning rod to keep the device in a fixed position in the river channel;

[0019] Three-rod positioning rods connected to the positioning float and may extend to both sides or the bottom of the river channel to enhance the positioning stability of the filter device;

[0020] An air pump is arranged on one side or in the center of the filter cloth, connected to the inflatable airbag float through a pipeline, and used to control the inflation and deflation of the airbag;

[0021] Filter retaining wall, which is used in conjunction with filter cloth and is arranged on the upstream side of the filter cloth to guide water flow through the filter cloth and enhance the filtering effect;

[0022] Vertical bank slope, the filter cloth is set on the vertical bank slope, perpendicular to the river bank slope, to ensure that the device is stably fixed in the river;

[0023] Solar cells are installed on or beside the vertical bank slope to provide the required power for the air pump and other electronic devices.

[0024] Furthermore, the filter cloth is woven from warp yarn and weft yarn using a rapier loom, and the weft yarn is composed 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 anti-aging polypropylene PP split film yarn, the second layer of weft yarn is hydrophilic anti-aging polypropylene PP split film yarn, the third layer of weft yarn is hydrophilic 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.

[0025] 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.

[0026] Furthermore, the filter dirt-blocking cloth is made of a hydrophilic polymer material or a super-hydrophobic polymer material.

[0027] Hydrophilic polymer material: Hydrophilic polymer material is used on the surface layer of the filter cloth with larger pores. It can attract water molecules, reduce the surface tension of water, and promote water penetration. At the same time, it provides a favorable environment for the growth of microorganisms. Microbial growth environment: Microorganisms are easy to grow on the surface of hydrophilic polypropylene materials because it provides a moist environment that is conducive to the attachment and reproduction of microorganisms. When water passes through, microorganisms are brought in, forming an environment similar to biochemical reactions, which is conducive to biodegradation and water purification.

[0028] Super hydrophobic polymer material: The surface layer of the filter cloth with smaller pores uses super hydrophobic polymer material, which has extremely high water repellency, can prevent water molecules from penetrating, and reduce the attachment and growth of microorganisms.

[0029] Different areas of the filter cloth use materials with specific characteristics. In the surface layer with larger pores, hydrophilic polymer materials play a key role. This material can attract water molecules and reduce the surface tension of water, thereby promoting water penetration. At the same time, hydrophilic materials create a favorable environment for microbial growth. When water passes through these areas, microorganisms are brought in, forming an environment similar to biochemical reactions. Here, microorganisms can biodegrade organic matter in the water and effectively purify the water quality.

[0030] On the surface layer with smaller pores, super-hydrophobic polymer materials are used, especially super-hydrophobic polyoxymethylene fibers. This material has extremely high water repellency and hardly interacts with water molecules, which can prevent water molecules from penetrating. And due to its super-hydrophobic properties, it greatly reduces the attachment and growth of microorganisms. On the one hand, this reduces the risk of filter cloth clogging, and on the other hand, the super-hydrophobic area provides efficient physical filtration and can intercept tiny particles. In this way, the hydrophilic polypropylene material area promotes microbial growth and biodegradation, and the super-hydrophobic polyoxymethylene fiber area performs efficient physical filtration. The perfect combination of the two realizes the synergistic effect of biological filtration and physical filtration.

[0031] Furthermore, the hydrophilic polymer material is a hydrophilic polypropylene material. Microbial growth environment: The surface of the hydrophilic polypropylene material is easy to grow microorganisms because it provides a moist environment that is conducive to the attachment and reproduction of microorganisms. When water passes through, microorganisms are brought in, forming a biochemical reaction environment that is conducive to biodegradation and water purification.

[0032] The super-hydrophobic polymer material is super-hydrophobic polyoxymethylene fiber. Preventing microbial attachment: The surface of super-hydrophobic polyoxymethylene fiber is not easy to grow microorganisms. Its super-hydrophobic property reduces the attachment of microorganisms, helps prevent the filter cloth from clogging, and maintains the long-term stable operation of the filtration system. Preventing filter cloth from clogging: Super-hydrophobic materials reduce the risk of filter cloth clogging and improve the efficiency and life of the filtration system.

[0033] Combination of biological filtration and physical filtration: Hydrophilic and super-hydrophobic materials are used in different areas of the filter cloth to achieve a combination of biological filtration and physical filtration. The hydrophilic polypropylene material area promotes microbial growth and biodegradation, and the super-hydrophobic polyoxymethylene fiber area provides efficient physical filtration and intercepts tiny particles.

[0034] Further, the floating plants are one or a combination of Euryale ferox, Nymphaea nymphaeaceae, Duckweed, Pleurotus eryngii, Potamogeton, Duckweed, Victoria amazonica, Water terrapin, Water chestnut or Macroalgae;

[0035] Aquatic plants are planted in specific treatment areas to absorb nutrients in the water such as nitrogen and phosphorus, reduce the risk of eutrophication, provide biodiversity, and improve water ecology.

[0036] Furthermore, the filler is one or a combination of activated carbon, zeolite, volcanic rock or perlite to adsorb harmful substances in water such as ammonia nitrogen, phosphorus, heavy metals, etc., and further purify the water quality.

[0037] The second aspect of the present application provides a method for treating a multi-filtering river multifunctional sewage treatment system, comprising the following steps:

[0038] (1) Setting up soft enclosures in the river to form a water purification area;

[0039] (2) Floating plants, ecological plant floating beds and fillers are arranged inside the soft enclosure;

[0040] (3) Use filter cloth to intercept solid particles and suspended sediment in the water;

[0041] (4) Solar cells are used to provide energy to the system to achieve automatic control.

[0042] Furthermore, the material and aperture of the filter cloth can be selected and adjusted according to different water quality and treatment requirements. The five-weft twill filter cloth exhibits excellent comprehensive performance. In terms of filtration performance, its high filtration accuracy can effectively intercept tiny particles, ensuring that the sewage can reach a high water quality standard after treatment. At the same time, good air permeability ensures smooth water flow during the filtration process and reduces filtration resistance. In terms of strength performance, the extremely high tensile strength and tear resistance enable it to withstand various stresses in the project and adapt to different construction environments. The excellent drainage performance can quickly remove moisture from the soil, prevent engineering problems caused by water accumulation, and provide strong guarantee for the stable operation of the project. The outstanding advantage of wear resistance enables the filter cloth to resist external friction and scratches during long-term use and maintain stable performance. In addition, corrosion resistance ensures long-term use in harsh environments such as sewage, and UV resistance ensures durability in outdoor environments.

[0043] Beneficial effects: The system of the present invention realizes step-by-step filtration and regional division of water bodies through the innovative filter cloth design and the application of multiple soft enclosures, thereby improving the filtration efficiency. At the same time, the system uses hydrophilic polymer materials and super-hydrophobic polymer materials, combined with biological filtration and physical filtration, to effectively purify water quality. In addition, the system is also designed with an in-situ functional treatment area, which further improves the water purification effect by planting aquatic plants and adding functional fillers. This design not only improves the efficiency and effect of water treatment, but also reduces the use of chemical agents, reduces environmental impact, and meets the requirements of sustainable development.

[0044] Compared with the prior art, the present invention has the following advantages:

[0045] (1) High-efficiency filtration: Through the design of multiple soft enclosures and filter cloths with different pore sizes, step-by-step filtration of the water body is achieved, which effectively removes suspended particles, silt and other impurities in the water, and improves the filtration efficiency. Synergistic effect of biological and physical filtration: Different areas of the filter cloth use hydrophilic polymer materials and super-hydrophobic polymer materials to promote microbial growth and biodegradation, while providing efficient physical filtration and intercepting tiny particles, thus realizing the organic combination of biological filtration and physical filtration. Improve water transparency: The test results of the embodiment show that the system can effectively improve the transparency of the water body, improve water quality, and provide a better living environment for aquatic organisms.

[0046] This filter material has excellent anti-clogging performance and exhibits unique self-clearing ability in complex environments with silt accumulation. Even if it is operated for a long time and invaded by a large amount of silt, it can effectively prevent blockage, maintain good filtering effect, and allow fluid to pass smoothly without frequent manual cleaning, greatly improving the working efficiency and stability of the filtration system in harsh clogging environments.

[0047] (3) Environmental friendliness: The system design focuses on the use of environmentally friendly materials, reduces the demand for chemical treatment agents, reduces the negative impact on the environment, and conforms to the development trend of green water treatment. Flexibility and scalability: The system can be adjusted and optimized according to different water quality and treatment requirements, such as increasing the number of filter unit stages or replacing more efficient filter media to adapt to different application scenarios. Automated control: The system uses automated control technology to monitor water quality parameters in real time through sensors, automatically adjust the operating status and parameters of the filter unit, and improve the stability and reliability of the system.

[0048] (4) Easy to maintain and operate: The design of the soft enclosure and filter cloth makes the system easy to maintain and replace. Non-professionals can also perform daily inspections and maintenance, reducing the difficulty of operation and maintenance costs. Versatility: 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, reduce the risk of eutrophication of water bodies, and improve the ecological environment of water bodies.

[0049] (5) Wide range of application scenarios: The system is applicable to a variety of water treatment scenarios, including industrial water treatment, drinking water treatment, river water pollution control, sewage treatment and reuse, etc., and has a wide range of market application prospects. Resource recycling: Through deep treatment of river water 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.

[0050] (6) The filter cloth of the present invention significantly improves the sewage filtration efficiency. The unique structure and yarn parameter design of the five-fold twill filter cloth give it a high filtration accuracy of less than 5 microns, which can effectively remove pollutants such as suspended matter, organic matter and microorganisms in sewage, and ensure the transparency of the water after filtration. Enhance the stability of the engineering structure. By providing high strength, good drainage performance and reinforcement effect, the overall stability and durability of the filter cloth are improved. Reduce maintenance costs. Due to its excellent wear resistance, corrosion resistance and UV resistance, the five-fold twill filter cloth is not easily damaged during long-term use, which reduces the frequency of maintenance and replacement and reduces the maintenance cost of the project.

[0051] (7) The filter cloth of the present invention is designed to meet the requirements of specific projects for higher strength, better stability and better performance of geotextiles. A geotextile with a five-fold twill weave is specially designed for use in the field of sewage filtration. The present invention is suitable for a variety of engineering environments. The flame retardant properties of the filter cloth enable it to be safely used in engineering environments with fire risks, and its stability and UV resistance in different pH ranges enable it to adapt to various complex engineering environments.

[0052] (8) The five-fold twill filter fabric of the present invention has excellent performance in the field of sewage filtration by rationally selecting yarn parameters, organizational structure design and performance parameter requirements. The selection of yarn diameter and linear density optimizes the wear resistance, filtration performance, strength and durability of the geotextile. The selection of interweaving angles ensures that the strength of the geotextile is evenly distributed in all directions and improves the 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 wear rate and elongation at break improves the wear resistance and tensile strength of the geotextile. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0054] Figure 1 A schematic diagram of a multifunctional river sewage treatment system provided in an embodiment of the present application.

[0055] Figure 2 A schematic diagram of an upright bank slope automatically raise / lowerable river water filtering device provided in an embodiment of the present application.

[0056] Among them, the figure reference numerals in the figure are: 1 soft enclosure, 2 floating plants, 3 upright bank slope automatically liftable river water filtering device, 4 ecological plant floating bed, 5 filler, 301 filter dirt blocking cloth, 302 high-density foam float, 303 reinforcement belt, 304 counterweight chain, 305 inflatable air bag float part, 306 positioning float, 307 three-rod positioning rod, 308 air pump, 309 filter retaining wall, 310 upright bank slope, 311 solar cell. DETAILED DESCRIPTION

[0057] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0058] In this application, the term "and / or" describes the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0059] In the present application, "at least one" means one or more, and "plurality" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, "at least one of a, b, or c", or "at least one of a, b, and c" can all represent: a, b, c, ab (i.e., a and b), ac, bc, or abc, where a, b, and c can be single or multiple, respectively.

[0060] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution, some or all of the steps can be executed in parallel or sequentially, and 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 the present application.

[0061] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0062] The weight of the relevant components mentioned in the embodiment description of the present application can not only refer to the specific content of each component, but also represent the proportional relationship between the weights of the components. Therefore, as long as the content of the relevant components is proportionally enlarged or reduced according to the embodiment description of the present application, it is within the scope disclosed in the embodiment description of the present application. Specifically, the mass described in the embodiment description of the present application can be a mass unit known in the chemical industry such as μg, mg, g, kg, etc.

[0063] Example 1

[0064] The present invention discloses a multifunctional river channel sewage treatment system with multiple filtering forms, which comprises a group of soft enclosures 1 arranged in sequence along the river channel to form a plurality of independent water purification areas; upright bank slope automatic liftable river channel water filtering devices 3 are arranged between the soft enclosures 1, and floating plants 2, ecological plant floating beds 4 and fillers 5 are arranged inside the soft enclosures 1.

[0065] The vertical bank slope automatic lifting river water filtering device 3 includes a filtering dirt-blocking cloth 301, a high-density foam float 302, a reinforcement belt 303, a counterweight chain 304, an inflatable airbag float part 305, a positioning float 306, a three-rod positioning rod 307, an air pump 308, a filtering retaining wall 309, a vertical bank slope 310 and a solar cell 311;

[0066] The filter cloth 301 is arranged below the high-density foam float 302 and directly contacts the water flow to intercept and filter impurities in the water;

[0067] The weft yarn of the filter dirt-blocking cloth 301 is composed 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 anti-aging polypropylene PP split film yarn, the second layer of weft yarn is hydrophilic anti-aging polypropylene PP split film yarn, the third layer of weft yarn is hydrophilic 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. The five layers of materials are all existing technologies. POM split film yarn manufacturer: Tangshan Zhonghao Chemical Co., Ltd.; EEK fiber manufacturer: Jilin Zhongyan Polymer Materials Co., Ltd.

[0068] 1. Yarn parameters of filter cloth 301:

[0069] Warp:

[0070] Material: high-strength, corrosion-resistant polyoxymethylene POM split film yarn, polyetheretherketone PEEK fiber or anti-aging polypropylene PP flat yarn.

[0071] Diameter: 0.3 to 2.5 mm.

[0072] Weft yarn: The first layer of weft yarn: Material: hydrophilic anti-aging polypropylene (PP) split film yarn. It can increase the thickness, water permeability, drainage capacity and microbial affinity of the geotextile. Its diameter is 0.5 to 1.5 mm. Diameter: 0.5 to 1.5 mm. The second layer of weft yarn: Material: hydrophilic anti-aging polypropylene (PP) split film yarn, used to form drainage channels. Diameter: 0.4 to 1.2 mm. The third layer of weft yarn: Material: hydrophilic anti-aging polypropylene (PP) split film yarn, to form drainage channels that can attach microbial films. Diameter: 0.4 to 1.2 mm. The fourth layer of weft yarn: Material: polyoxymethylene POM split film yarn, which can improve the wear resistance and water permeability of the geotextile. The diameter is 0.4 to 0.5 mm. The fifth layer of weft yarn: Material: polyetheretherketone (PEEK) fiber, which can enhance the tensile strength, wear resistance, light resistance and tear resistance of the geotextile. Diameter: 0.3 to 0.5 mm.

[0073] 2. The structural parameters of the filter cloth 301:

[0074] Twill Angle: 45 degrees.

[0075] Warp and weft density: warp density is 35 threads per centimeter, weft density is 30 threads per centimeter.

[0076] 3. Performance parameters of filter cloth 301:

[0077] Filtration accuracy: less than 5 microns.

[0078] Equivalent pore size (O 90 ):0.15 mm.

[0079] Permeability coefficient: 1×10-2cm / s to 1×10-3cm / s.

[0080] Breaking strength: 210kN / m in warp direction, 180kN / m in weft direction.

[0081] Acid and alkali resistance: stable within the pH range of 3-12.

[0082] Anti-ultraviolet performance: After a certain period of ultraviolet radiation, the strength retention rate is greater than 80%.

[0083] Advantages of the filter cloth 301 of the present invention: unique five-layer structural design to achieve multifunctional integration. Weft yarns of different materials play the role of increasing thickness and stability, providing drainage channels, enhancing tensile and tear resistance, and improving wear resistance, meeting the diverse needs of sewage filtration. Reasonable yarn parameter selection ensures excellent performance. The thicker yarn diameter increases the wear resistance and puncture resistance of the geotextile, and the finer yarn diameter improves the waterproofness and filtration performance. The high-density yarn enhances strength and durability, and the combination of yarns with different line densities meets different performance requirements. The interweaving angle is optimized to improve the overall performance. The interweaving angle of 35 to 45 degrees makes the strength of the geotextile evenly distributed in all directions, improves the tensile strength and tear resistance, and at the same time enhances the structural stability, reduces the slippage and looseness between the yarns, and improves the durability. Low wear rate and appropriate elongation at break enhance durability. The fourth layer of polyoxymethylene POM split film yarn weft yarn with a wear rate of only 5% improves the wear resistance of the geotextile, making it less likely to be damaged during long-term use. The glass fiber weft yarn with a breaking elongation of 15% enhances the tensile resistance, so that the geotextile has a certain deformation ability when subjected to tension, absorbs part of the energy, reduces stress concentration, and improves the ability to resist damage.

[0084] The high-density foam float 302 is evenly distributed on the upper part of the filter device, located above the filter cloth 301, to provide buoyancy for the entire device;

[0085] One or more reinforcing strips 303 are arranged at the edge or inside of the filter cloth 301 to enhance the durability and load-bearing capacity of the entire system;

[0086] A weight chain 304 is connected to the bottom of the filter device to increase the weight of the device and prevent the device from shifting or turning over due to excessive water flow;

[0087] The inflatable air bag float part 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 filtering device to adapt to different water levels;

[0088] A positioning float 306 is provided at the edge of the filtering device and is used in conjunction with a three-rod positioning rod 307 to maintain a fixed position of the device in the river channel;

[0089] A three-rod positioning rod 307 connected to the positioning float 306 and may extend to both sides or the bottom of the river channel to enhance the positioning stability of the filtering device;

[0090] The air pump 308 is arranged at one side or the center of the filter cloth 301, and is connected to the inflatable air bag float part 305 through a pipeline, and is used to control the inflation and deflation of the air bag;

[0091] The filter retaining wall 309 is used in conjunction with the filter cloth 301 and is disposed on the upstream side of the filter cloth 301 to guide water flow through the filter cloth to enhance the filtering effect;

[0092] A vertical bank slope 310, on which the filter cloth 301 is arranged, perpendicular to the river bank slope 310, to ensure that the device is stably fixed in the river;

[0093] The solar cell 311 is disposed above or beside the vertical bank slope 310 .

[0094] The filter cloth 301 is made of a hydrophilic polymer material or a super hydrophobic polymer material.

[0095] The hydrophilic polymer material is a hydrophilic polypropylene material, and the super-hydrophobic polymer material is a super-hydrophobic polyoxymethylene fiber.

[0096] Floating plants 2 is a combination of seven species including Euryale ferox, Duckweed, Lemna gracilis, Victoria amazonica, Water terrapin, Water chestnut and Macroalgae; aquatic plants are planted in specific treatment areas to absorb nutrients in the water such as nitrogen and phosphorus, reduce the risk of eutrophication of water bodies, provide biodiversity and improve water ecology.

[0097] Filler 5 is activated carbon. It absorbs harmful substances in water such as ammonia nitrogen, phosphorus, heavy metals, etc., and further purifies the water quality. It absorbs harmful substances in water such as ammonia nitrogen, phosphorus, heavy metals, etc., and further purifies the water quality.

[0098] Example 2

[0099] The difference between Example 2 and Example 1 is that the warp yarn of the filter cloth 301 is made of high-strength, corrosion-resistant polyoxymethylene POM split film yarn. The floating plants 2 are a combination of seven of water lilies, water chestnuts, raindrops, duckweed, water chestnuts and macroalgae; and the filler 5 is a combination of two of volcanic rocks and perlite.

[0100] Example 3

[0101] The difference between Example 3 and Example 1 is that the warp yarn of the filter cloth 301 is made of polyetheretherketone (PEEK) fiber, the floating plant 2 is Euryale ferox, and the filler 5 is a combination of two of activated carbon and volcanic rock.

[0102] Example 4

[0103] 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 a combination of Euryale ferox, water lily, Nymphoides, Duckweed, Rainforest, Potamogeton, Duckweed, Victoria amazonica, Water terrapin, Water chestnut or macroalgae; the filler 5 is a combination of two of activated carbon and zeolite.

[0104] Example 5

[0105] The difference between Example 5 and Example 1 is that the floating plants 2 are a combination of five of Nymphoides, Duckweed, Pleurotus eryngii, Potamogeton and Macroalgae; and the filler 5 is volcanic rock.

[0106] Example 6

[0107] A treatment method of a multi-filtering river multi-functional sewage treatment system of the present invention comprises the following steps:

[0108] (1) A soft enclosure 1 is set up in the river channel to form a water purification area;

[0109] (2) Floating plants 2, ecological plant floating beds 4 and fillers 5 are arranged inside the soft enclosure 1;

[0110] (3) using the filter cloth 3 to intercept solid particles and suspended sediment in the water body;

[0111] (4) The solar cell 311 provides energy to the system to achieve automatic control.

[0112] The material and pore size of the filter cloth 301 can be selected and adjusted according to different water qualities and treatment requirements.

[0113] The above shows and describes 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, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and the scope of protection of the present invention is defined by the attached claims, description and their equivalents.

Claims

1. A multi-functional river sewage treatment system with multiple filtering forms, characterized by: A multifunctional river sewage treatment system with multiple filtering forms comprises a group of soft enclosures (1) arranged in sequence to form a plurality of independent water purification areas; floating plants (2), ecological plant floating beds (4) and fillers (5) are arranged inside the soft enclosures (1); and vertical bank slopes with automatic lifting and lowering river water filtering devices (3) are arranged between the soft enclosures (1).

2. The multi-filter river multi-functional sewage treatment system according to claim 1 is characterized by: The vertical bank slope automatically liftable river water filtering device (3) comprises a filtering dirt-blocking cloth (301), a high-density foam float (302), a reinforcement belt (303), a counterweight chain (304), an inflatable airbag float part (305), a positioning float (306), a three-rod positioning rod (307), an air pump (308), a filtering retaining wall (309), a vertical bank slope (310) and a solar cell (311); The filter cloth (301) is arranged below the high-density foam float (302) and directly contacts the water flow to intercept and filter impurities in the water; The high-density foam float (302) is evenly distributed on the upper part of the filter device and is located above the filter cloth (301) to provide buoyancy for the entire device; One or more reinforcing strips (303) are arranged 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 connected to the bottom of the filter device to increase the weight of the device and prevent the device from shifting or turning over due to excessive water flow; The inflatable air bag float part (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 filtering device to adapt to different water levels; A positioning float (306) is arranged at the edge of the filtering device and is used in conjunction with a three-rod positioning rod (307) to maintain a fixed position of the device in the river channel; A three-rod positioning rod (307) is connected to the positioning float (306) and may extend to both sides or the bottom of the river channel to enhance the positioning stability of the filtering device; An air pump (308) is arranged on one side or in the center of the filter and dirt-blocking cloth (301), connected to the inflatable airbag float part (305) through a pipeline, and is used to control the inflation and deflation of the airbag; A filter retaining wall (309) is used in conjunction with the filter dirt-blocking cloth (301) and is disposed on the upstream side of the filter dirt-blocking cloth (301) to guide water flow through the filter cloth to enhance the filtering effect; A vertical bank slope (310), on which the filter cloth (301) is arranged, perpendicular to the river bank slope (310), to ensure that the device is stably fixed in the river; The solar cell (311) is arranged above or beside the vertical bank slope (310).

3. The multi-filter river multi-functional sewage treatment system according to claim 1 is characterized by: The filter dirt-blocking cloth (301) is made of a hydrophilic polymer material or a super-hydrophobic polymer material; the hydrophilic polymer material is a hydrophilic polypropylene material, and the super-hydrophobic polymer material is a super-hydrophobic polyoxymethylene fiber.

4. The multi-filter river multi-functional sewage treatment system according to claim 1 is characterized by: The filter dirt-blocking cloth (301) is woven from warp yarns and weft yarns using a rapier loom, the weft yarns are composed of a first layer of weft yarns, a second layer of weft yarns, a third layer of weft yarns, a fourth layer of weft yarns and a fifth layer of weft yarns, the first layer of weft yarns are hydrophilic anti-aging polypropylene (PP) split film yarns, the second layer of weft yarns are hydrophilic anti-aging polypropylene (PP) split film yarns, the third layer of weft yarns are hydrophilic anti-aging polypropylene (PP) split film yarns, the fourth layer of weft yarns are polyoxymethylene (POM) split film yarns, and the fifth layer of weft yarns are polyetheretherketone (PEEK) fibers.

5. The multi-filter river multi-functional sewage treatment system according to claim 4 is characterized by: The warp yarn is any one of polyoxymethylene (POM) split film yarn, polyetheretherketone (PEEK) fiber or anti-aging polypropylene (PP) flat yarn.

6. The multi-filter river multi-functional sewage treatment system according to claim 1 is characterized by: The floating plants (2) are one or a combination of the following: Euryale ferox, water lily, Nymphoides, Duckweed, Pleurotus eryngii, Potamogeton, Duckweed, Victoria amazonica, Water terrapin, Water chestnut or macroalgae.

7. The multi-filter river multi-functional sewage treatment system according to claim 1 is characterized by: The filler (5) is one or a combination of activated carbon, zeolite, volcanic rock or perlite.

8. A method for treating sewage in a multi-filtering river multi-functional sewage treatment system according to claim 1, characterized in that The steps include: (1) Setting up a soft enclosure (1) in the river channel to form a water purification area; (2) Floating plants (2), an ecological plant floating bed (4) and fillers (5) are arranged inside the soft enclosure (1); (3) Using filter cloth (3) to intercept solid particles and suspended sediment in the water body; (4) Solar cells (311) are used to provide energy to the system to achieve automatic control.

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