Bionic eel grass for micro-polluted water area

Abstract

The invention discloses bionic eelgrass for a micro-polluted water area, and particularly relates to the technical field of sewage treatment, the bionic eelgrass comprises a plurality of bionic eelgrass bundles, an air inlet / outlet, a pipeline frame for fixing and conveying air to the plurality of bionic eelgrass bundles, and a five-way connecting piece for connecting the plurality of bionic eelgrass bundles and the pipeline frame. The hollow fiber aeration membrane filaments are made into an eelgrass shape and connected with an air pump, the high oxygen utilization rate and biocompatibility of the aeration membrane are utilized, biochemical treatment is enhanced for a natural water area, microorganisms grow and work under the low-carbon condition, the device can be placed in the water area needing to be treated for a long time, pollutants in the water area are degraded, the water area environment is repaired, and ecological balance is rebuilt.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and more specifically to a bionic eelgrass used in slightly polluted waters. Background Art

[0002] Membrane aerated biofilm reactor MABR can achieve nitrification and denitrification simultaneously, with a theoretical oxygen utilization rate of nearly 100% and extremely low energy consumption. It is currently a very promising sewage treatment process.

[0003] Micro-polluted waters usually refer to waters whose water quality indicators partially exceed the Class III standard of the Surface Water Environmental Quality Standard, but whose pollution level is relatively low. There are many kinds of pollutants in such waters, including organic matter, ammonia nitrogen, nitrate nitrogen, phosphorus, heavy metals and pesticides, etc. Their concentrations are usually low and difficult to effectively remove using conventional sewage treatment processes. The existence of micro-polluted waters not only affects the safety of drinking water, but may also have long-term impacts on the ecosystem through the food chain.

[0004] The current difficulties in governance are: 1. There are many types of pollutants and their concentration is low: pollutants in slightly polluted waters include organic matter, ammonia nitrogen, nitrate nitrogen, phosphorus, heavy metals and pesticides. These pollutants are of many types and usually have low concentrations, making it difficult to effectively remove them through conventional water treatment processes; 2. Limitations of treatment technology: Existing treatment technologies are often difficult to adapt to the complexity of slightly polluted waters. For example, although biological treatment technology is low-cost and highly efficient, it is difficult to achieve ideal treatment effects due to the low COD, where microorganisms are not easy to grow. In addition, due to the limitations of terrain conditions, treatment needs to be tailored to local conditions. Current treatment measures have limitations and the effects are not ideal.

[0005] In view of the above situation, the present invention provides a bionic eel grass for use in slightly polluted waters. Summary of the invention

[0006] In order to overcome the above defects of the prior art, the present invention provides a bionic eel grass for use in slightly polluted waters to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a bionic eel grass for use in slightly polluted waters, comprising a plurality of bionic eel grass bundles, air inlets and outlets, a pipe frame for fixing and transferring air to the plurality of bionic eel grass bundles, and a five-way connector for connecting the plurality of bionic eel grass bundles and the pipe frame.

[0008] In order to connect multiple hollow fiber aeration membrane filaments and the fixed glue-filled base to form a bionic eel grass bundle and achieve the purpose of air intake and exhaust at the same time, preferably, the bionic eel grass bundle is specifically an eel grass-shaped filament bundle composed of multiple hollow fiber aeration membrane filaments and a fixed glue-filled base; the fixed glue-filled base specifically includes an inner ring and an outer ring, and the inner ring and the outer ring are used for air intake and exhaust respectively, and the fixed glue-filled base is a plastic product made of a mold.

[0009] Preferably, the two ends of the hollow fiber aeration membrane are respectively fixed to the inner circle and outer circle of the fixed glue-filling base by glue filling, and after the glue filling is cured, part of the head is cut off to expose the hollow fiber aeration membrane opening for air intake and outlet.

[0010] In order to improve the functionality of the surface of the hollow fiber aeration membrane, preferably, the hollow fiber aeration membrane is treated with a coating, including but not limited to a bioaffinity coating and an oxygen-permeable waterproof coating. Furthermore, the bioaffinity coating is coated on the surface of the hollow fiber membrane using a biocompatible material, including chitosan and collagen, and the oxygen-permeable waterproof coating is coated on the surface of the hollow fiber membrane using a silicone rubber formula mixture. The hollow fiber membrane uses a polymer hydrophobic membrane of polytetrafluoroethylene or polyvinylidene fluoride.

[0011] In order to enable the air inlet and outlet to achieve the purpose of air intake and air exhaust at the same time, preferably, the air inlet and outlet and their connecting pipes are a set of pipes with an inner pipe placed in an outer pipe, and the inner pipe and the outer pipe are used for air intake and air exhaust respectively.

[0012] In order to connect multiple bionic eel grass bundles and the pipeline frame, preferably, the five-way connector is an inner and outer nested plastic part, specifically an inner tube five-way and an outer tube five-way, wherein the inner tube five-way is embedded in the outer tube five-way, for connecting multiple bionic eel grass bundles to form an overall frame.

[0013] In order to facilitate the blocking of redundant connection outlets, preferably, the connection outlets of the five-way connector are movably provided with a cover for blocking the redundant connection outlets, and the five-way connector is a plastic product made of a mold; In order to ensure that the pipeline frame has good stability when placed in water and is not prone to sliding or shifting, while also improving safety during operation and avoiding accidental slips during installation or maintenance due to the smooth surface, preferably, the pipeline frame is made of high-strength and corrosion-resistant engineering plastic material, and the surface of the pipeline frame is provided with anti-slip texture or sprayed with an anti-slip coating.

[0014] Technical effects and advantages of the present invention: 1. The bionic eelgrass of the present invention improves oxygen utilization and bioaffinity through special designs, such as coated hollow fiber aeration membrane filaments and bionic eelgrass-shaped filament bundles, and can effectively promote the growth and work of microorganisms under low-carbon conditions. This enables the bionic eelgrass to be placed in waters that need to be treated for a long time, efficiently degrade pollutants in the waters, and significantly improve water quality. It is particularly effective in treating sewage in slightly polluted waters. 2. The bionic eel grass of the present invention has a simple structural design, including a bionic eel grass bundle, an air inlet and outlet, a pipe frame for fixing and transmitting air, and a five-way piece connecting the grass bundle and the pipe. The connection method between the various components is simple and reliable, and the installation is convenient and quick. At the same time, the integrated structural design also makes maintenance work easier, reduces maintenance costs and difficulties, and improves the reliability and service life of the equipment; 3. The design of the present invention fully considers the ecological balance. By simulating the morphology and function of the natural plant eelgrass, it helps to restore and maintain the aquatic ecosystem. In the process of sewage treatment, the bionic eelgrass reduces the interference to the environment and has less impact on aquatic organisms. It can effectively reshape the ecological balance and promote the healthy development of the aquatic ecological environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the bionic eelgrass bundle structure of the present invention.

[0017] Figure 3 It is a schematic diagram of the structure of the fixed glue-filling base of the present invention.

[0018] Figure 4 It is a schematic diagram of the structure of the five-way connector of the present invention.

[0019] Figure 5 It is a schematic diagram of the air inlet and outlet structure of the present invention.

[0020] The accompanying drawings are marked as follows: 1. bionic eelgrass bundle; 2. air inlet and outlet; 3. pipe frame; 4. five-way connector; 1-1. hollow fiber aeration membrane wire; 1-2. fixed glue-filled base; 1-2-1. inner ring; 1-2-2 outer ring; 2-1. inner tube; 2-2. outer tube; 4-1. inner tube five-way; 4-2 outer tube five-way. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] As attached Figure 1-3 The bionic eel grass for slightly polluted waters shown in the figure comprises a plurality of bionic eel grass bundles 1, an air inlet and outlet 2, a pipe frame 3 for fixing and transferring air to the plurality of bionic eel grass bundles 1, and a five-way connector 4 for connecting the plurality of bionic eel grass bundles 1 and the pipe frame 3; In a specific embodiment, as shown in the attached Figure 2 As shown, the bionic eelgrass bundle 1 is specifically an eelgrass-shaped bundle consisting of a plurality of hollow fiber aeration membrane filaments 1-1 and a fixed glue-filled base 1-2, wherein the fixed glue-filled base 1-2 specifically includes an inner ring 1-2-1 and an outer ring 1-2-2, the inner ring 1-2-1 and the outer ring 1-2-2 are used for air intake and air outlet respectively, and the fixed glue-filled base 1-2 is a plastic product made of a mold; The two ends of the hollow fiber aeration membrane 1-1 are respectively glued and fixed at the inner circle 1-2-1 and the outer circle 1-2-2 of the fixed glue-filling base 1-2. After the glue is cured, the head is partially cut off to expose the opening of the hollow fiber aeration membrane 1-1 for air intake and air outlet. The hollow fiber aeration membrane 1-1 is treated with a coating, including but not limited to a bio-affinity coating and an oxygen-permeable waterproof coating; The bioaffinity coating is a biocompatible material, including chitosan and collagen, coated on the surface of the hollow fiber aeration membrane filament 1-1 to promote the attachment and growth of microorganisms, enhance bioaffinity, and improve sewage treatment efficiency; The oxygen permeable waterproof coating is a silicone rubber formula mixture coated on the surface of the hollow fiber aeration membrane filament 1-1, which has oxygen permeability and waterproofing effects; The hollow fiber membrane uses polytetrafluoroethylene or polyvinylidene fluoride polymer hydrophobic membrane, which has the advantages of high porosity, large air permeability and long service life.

[0023] The structure imitates the structure and function of eelgrass in nature. Through special designs, such as coated hollow fiber aeration membrane filaments 1-1 and special plastic parts, it simulates the gas exchange mechanism of the lungs to improve sewage treatment efficiency. The bionic eelgrass device can adapt to different water quality conditions and has good applicability for sewage treatment in slightly polluted waters. It takes ecological balance into consideration and helps to restore and maintain water ecology by simulating the morphology of natural plants, while reducing interference with the environment.

[0024] In a specific embodiment, as shown in the attached Figure 1As shown, the air inlet and outlet 2 and the connecting pipes thereof are a set tube in which the inner tube 2-1 is placed in the outer tube 2-2, and the inner tube 2-1 and the outer tube 2-2 are used for air intake and air exhaust respectively; through the separate air intake and air outlet designs of the inner ring 1-2-1 and the outer ring 1-2-2, and the set tube design in which the inner tube 2-1 is placed in the outer tube 2-2, the device can achieve efficient oxygen supply and carbon dioxide discharge, and promote water purification.

[0025] In a specific embodiment, as shown in the attached Figure 3 As shown, the five-way connector 4 is an inner and outer nested plastic part, specifically an inner tube five-way connector 4-1 and an outer tube five-way connector 4-2, wherein the inner tube five-way connector 4-1 is embedded in the outer tube five-way connector 4-2, and is used to connect multiple bionic eel grass bundles 1 to form an overall frame, and the connection outlets of the five-way connector 4 are all movably provided with a cover for blocking the redundant connection outlets, and the five-way connector 4 is a plastic product made of a mold; The device's five-way piece is designed as an internally and externally nested plastic part. This integrated structure not only improves the stability of the device, but also facilitates installation and maintenance.

[0026] In a specific embodiment, as shown in the attached Figure 3 As shown, the pipeline frame 3 is made of high-strength corrosion-resistant plastic material or stainless steel material, and the surface of the pipeline frame 3 is provided with anti-skid texture or sprayed with anti-skid coating.

[0027] It can ensure good stability when placed in water and is not prone to sliding or shifting. It can also improve safety during operation and avoid accidental slips during installation or maintenance due to the smooth surface.

[0028] The present invention is a bionic eelgrass for use in slightly polluted waters, and its specific principle is: Step 1: The two ends of the plurality of coated hollow fiber aeration membrane filaments 1-1 are respectively glued and fixed on the inner circle 1-2-1 and the outer circle 1-2-2 of the plastic product of the fixed glue-filling base 1-2 prepared by the mold. After the glue is cured, the head is partially cut off to expose the opening of the hollow fiber aeration membrane filament 1-1 for air intake and air outlet, thereby obtaining the bionic eel grass bundle 1; Step 2, connect the fixed glue-filled base 1-2 of the prepared bionic eel grass bundle 1 with the five-way connector 4 prepared by the mold, and at the same time, connect multiple pipeline frames 3 with the corresponding five-way connectors 4 respectively to achieve the connection of multiple bionic eel grass bundles 1, connect the air inlet and outlet 2 with the corresponding five-way connector 4 to achieve the purpose of air intake and air outlet, and if the five-way connector 4 has redundant connection outlets, it is sealed with a cover; Step three, install and fix the assembled bionic eel grass at the bottom of the river water area, extend one end of the air inlet and outlet 2 out of the water surface, connect the inner tube 2-1 of the air inlet and outlet 2 to the fan, and the outer tube 2-2 is directly connected to the atmosphere. There is gas flowing inside the multiple hollow fiber aeration membrane fibers 1-1, and there are microorganisms in the silt at the bottom of the river, which will slowly attach to the hollow fiber aeration membrane fibers 1-1. The natural flow of river water is used to make the microorganisms on the surface of the hollow fiber aeration membrane fibers 1-1 remove pollutants in the water body, thereby achieving the treatment effect.

[0029] In summary, the main principle of the present invention is to place the prepared bionic eelgrass component at the bottom of the water area and anchor it. The coating on the surface of the membrane fiber has biological affinity, and nitrifying bacteria are easily adsorbed on the membrane surface and are not easy to lose. The microorganisms in the silt at the bottom of the river will slowly adhere to the surface of the membrane fiber. The inner tube 2-1 is connected to the fan for air intake, and the outer tube 2-2 is directly connected to the atmosphere for air outlet. The gas flow inside the membrane provides a suitable growth environment for the microorganisms. The natural flow of river water is utilized to enable the microorganisms attached to the surface of the membrane fiber to remove pollutants in the water body, thereby achieving the effect of treating sewage in slightly polluted water areas.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bionic eelgrass for use in slightly polluted waters, characterized in that: The invention comprises a plurality of bionic eel grass bundles (1), an air inlet and outlet (2), a pipeline frame (3) for fixing and transferring air to the plurality of bionic eel grass bundles (1), and a five-way connector (4) for connecting the plurality of bionic eel grass bundles (1) and the pipeline frame (3).

2. The bionic eelgrass for slightly polluted waters according to claim 1, characterized in that: The bionic eelgrass bundle (1) is specifically an eelgrass-shaped bundle consisting of a plurality of hollow fiber aeration membrane fibers (1-1) and a fixed glue-filled base (1-2).

3. The bionic eelgrass for use in slightly polluted waters according to claim 2, characterized in that: The fixed glue-pouring base (1-2) specifically comprises an inner ring (1-2-1) and an outer ring (1-2-2), wherein the inner ring (1-2-1) and the outer ring (1-2-2) are respectively used for air intake and air exhaust, and the fixed glue-pouring base (1-2) is a plastic product made by a mold.

4. The bionic eel grass for slightly polluted waters according to claim 2, characterized in that: The two ends of the hollow fiber aeration membrane (1-1) are respectively glued and fixed at the inner circle (1-2-1) and the outer circle (1-2-2) of the fixed glue-filled base (1-2). After the glue is cured, a portion of the head is cut off to expose the opening of the hollow fiber aeration membrane (1-1) for air intake and air outlet.

5. The bionic eel grass for use in slightly polluted waters according to claim 2, characterized in that: The hollow fiber aeration membrane (1-1) is treated with a coating, including but not limited to a bio-affinity coating and an oxygen-permeable waterproof coating.

6. The bionic eelgrass for use in slightly polluted waters according to claim 5, characterized in that: The bioaffinity coating is made of biocompatible materials, including chitosan and collagen, and is coated on the surface of the hollow fiber membrane (1-1); The oxygen-permeable waterproof coating is coated on the surface of the hollow fiber membrane (1-1) using a silicone rubber formula mixture; The hollow fiber membrane is a high molecular hydrophobic membrane of polytetrafluoroethylene or polyvinylidene fluoride.

7. The bionic eel grass for slightly polluted waters according to claim 1, characterized in that: The air inlet and outlet (2) and the connecting pipes thereof are a set of pipes in which an inner pipe (2-1) is placed in an outer pipe (2-2), and the inner pipe (2-1) and the outer pipe (2-2) are used for air intake and air outlet respectively.

8. The bionic eelgrass for use in slightly polluted waters according to claim 1, characterized in that: The five-way connector (4) is an inner and outer nested plastic part, specifically an inner tube five-way connector (4-1) and an outer tube five-way connector (4-2), wherein the inner tube five-way connector (4-1) is embedded inside the outer tube five-way connector (4-2) and is used to connect multiple bionic eelgrass bundles (1) to form an overall frame.

9. The bionic eel grass for slightly polluted waters according to claim 1, characterized in that: The connection outlets of the five-way connector (4) are all movably provided with blind covers for blocking redundant connection outlets. The five-way connector (4) is a plastic product made by a mold.

10. The bionic eel grass for use in slightly polluted waters according to claim 1, characterized in that: The pipeline frame (3) is made of high-strength and corrosion-resistant engineering plastic material, and the surface of the pipeline frame (3) is provided with anti-skid patterns or sprayed with an anti-skid coating.

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