Advanced oxidation device based on ROS aeration membrane

Abstract

The utility model relates to an advanced oxidation device based on an ROS aeration membrane, which comprises an aerator main body, an ROS microporous aeration membrane and an annular gland, an aeration cavity is formed in the aerator main body, and a ventilation channel at the first end of the aerator main body is communicated with the first end of the aeration cavity; the first vent holes in the second end of the aerator main body are communicated with the second end of the aeration cavity, the first vent holes are sequentially arranged to form a plurality of layers of concentrically arranged vent rings, and the ROS microporous aeration membrane is aligned with the first vent holes, so that air pressed in from the vent channel can enter the aeration cavity, and the aeration efficiency is improved. And then the micro-nano bubbles are sprayed outwards through the first vent holes to act on the ROS microporous aeration membrane, so that the micro-nano bubbles can comprehensively act on the ROS microporous aeration membrane, and micro-nano bubble aeration can be more uniformly realized. Meanwhile, the second ends of the first ventilation holes of the ventilation rings are communicated with one another through the first communication grooves, so that the acting force borne by the ROS microporous aeration membrane is more balanced, and the ROS microporous aeration membrane has a better advanced oxidation effect.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an advanced oxidation device based on ROS aeration membrane. Background Technology

[0002] Advanced oxidation technology, also known as deep oxidation technology, is a technology used to treat organic pollutants. It is especially suitable for substances with poor biodegradability and relative molecular masses ranging from several thousand to tens of thousands. It is characterized by producing active substances with strong oxidizing capabilities. Under reaction conditions such as high temperature and high pressure, electricity, sound, light irradiation, and catalysts, large molecules of recalcitrant organic matter are oxidized into low-toxicity or non-toxic small molecules, thereby improving their biodegradability. ROS aeration membrane technology is an innovative water treatment technology that combines advanced oxidation technology with membranes. Its core lies in the efficient transfer of active oxygen through membrane modules.

[0003] Because the application principle of aeration technology is very simple, it does not require high technical skills from the application environment or the operators, making it easy to use and widely applicable. It is widely used in the pretreatment and biological treatment stages of wastewater treatment processes. Furthermore, aeration devices only release oxygen into the water during operation, without causing secondary pollution to the environment, making it an environmentally friendly process.

[0004] The aeration device mainly includes an aeration membrane and an aeration disc. It adopts a blower microporous aeration method, that is, air is forced into the aeration disc by a blower, and then dispersed into the water in the form of microbubbles after passing through the aeration membrane. The microbubbles rise from the bottom to the surface, which promotes the full dissolution of oxygen into the water and can increase the dissolved oxygen content in the water.

[0005] When existing aeration devices are used for aeration, the compressed air cannot pass through the aeration membrane completely, resulting in a smaller working area of ​​the aeration membrane, which reduces the working efficiency of the aeration membrane and affects the aeration effect of the aeration device. Utility Model Content

[0006] Therefore, it is necessary to provide an advanced oxidation device based on ROS aeration membrane.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An advanced oxidation device based on a ROS aeration membrane, comprising:

[0008] An aerator body has an aeration chamber inside. A ventilation channel is provided on the first end of the aerator body, and the ventilation channel is connected to the first end of the aeration chamber. A plurality of first ventilation holes are provided on the second end of the aerator body, and the first end of each first ventilation hole is connected to the second end of the aeration chamber. The first ventilation holes are arranged sequentially to form multiple concentric ventilation rings. A plurality of first connecting grooves are provided on the first end of the aerator body, and each first connecting groove is used to connect the second ends of two adjacent first ventilation holes of a ventilation ring.

[0009] ROS microporous aeration membrane, wherein the ROS microporous aeration membrane is disposed on the second end of the aerator body and the ROS microporous aeration membrane covers each of the first air vents;

[0010] An annular cap is disposed on the second end of the aerator body and abuts against the outer edge of the ROS microporous aeration membrane.

[0011] In one embodiment, a plurality of second connecting slots are provided on the first end of the aerator body, and each second connecting slot is used to connect the second ends of the two first air holes of two adjacent air rings.

[0012] In one embodiment, the aerator body is provided with a first connecting pipe and a second connecting pipe. The first connecting pipe is connected to the aerator body and has a first ventilation cavity. A spiral groove is formed on the side wall of the first ventilation cavity. A guide post is provided on the second connecting pipe. The second connecting pipe is rotatably disposed in the first ventilation cavity, and the outer surface of the second connecting pipe is in movable contact with the side wall of the first ventilation cavity. The guide post is slidably disposed in the spiral groove. A second ventilation cavity is formed on the second connecting pipe, and the second ventilation cavity communicates with the first ventilation cavity to form the ventilation channel.

[0013] In one embodiment, a sealing gasket is provided on the side wall of the first ventilation cavity, and the outer surface of the second connecting pipe is in movable contact with the sealing gasket.

[0014] In one embodiment, the advanced oxidation device based on ROS aeration membrane further includes: a limiting bolt, wherein the first connecting pipe has a threaded hole that communicates with the first ventilation chamber, the first end of the limiting bolt is screwed into the threaded hole, and the first end of the limiting bolt movably abuts against the outer surface of the second connecting pipe.

[0015] In one embodiment, a plurality of second air vents are provided on the second end of the aerator body, and each second air vent is arranged sequentially and alternately with each first air vent, and the width of the second air vent is different from the width of the first air vent.

[0016] In one embodiment, the width of the first end of the first vent is greater than the width of the second end of the first vent.

[0017] In one embodiment, the annular cap is provided with an internal thread, and the second end of the aerator body is provided with an external thread. The annular cap is threadedly connected to the second end of the aerator body through the internal thread and the external thread.

[0018] In one embodiment, an annular limiting block is provided on the annular cap, and an annular limiting groove is provided on the second end of the aerator body. The annular limiting block is fitted into the annular limiting groove, and the annular limiting block movably abuts against the ROS microporous aeration membrane.

[0019] In one embodiment, the cross-sectional shape of the annular limiting block is semi-circular.

[0020] The beneficial effects of this utility model are as follows: This utility model provides an advanced oxidation device based on a ROS aeration membrane. By providing an aeration chamber within the aerator body, a ventilation channel at the first end of the aerator body connects to the first end of the aeration chamber, and first ventilation holes at the second end of the aerator body connect to the second end of the aeration chamber. These first ventilation holes are arranged sequentially to form multiple concentric ventilation rings. The ROS microporous aeration membrane is aligned with each of the first ventilation holes. In this way, air forced in through the ventilation channel can enter the aeration chamber and then be ejected outwards through each of the first ventilation holes, acting on the ROS microporous aeration membrane. This ensures comprehensive action on the ROS microporous aeration membrane, resulting in more uniform micro-nano bubble aeration and improved aeration efficiency. Simultaneously, by connecting the second ends of each first ventilation hole in each ventilation ring through a first connecting groove, the force on the ROS microporous aeration membrane becomes more balanced, resulting in better aeration and thus a better advanced oxidation effect. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1This is a schematic diagram of the structure of an advanced oxidation device based on a ROS aeration membrane according to one embodiment;

[0023] Figure 2 This is a schematic diagram of the structure of an advanced oxidation device based on a ROS aeration membrane according to one embodiment;

[0024] Figure 3 This is a three-dimensional exploded structural diagram of an advanced oxidation device based on a ROS aeration membrane according to one embodiment.

[0025] Figure 4 This is a schematic cross-sectional view of an advanced oxidation device based on a ROS aeration membrane according to one embodiment.

[0026] Figure 5 This is a schematic diagram of the structure of the aerator body according to one embodiment.

[0027] In the attached figures, 10 is an advanced oxidation device based on a ROS aeration membrane; 100 is the aerator body; 110 is the aeration chamber; 120 is the air passage; 130 is the first air vent; 131 is the air ring; 140 is the first connecting groove; 150 is the second connecting groove; 200 is the ROS microporous aeration membrane; and 300 is the annular pressure cap. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0029] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0030] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, an advanced oxidation device 10 based on a ROS aeration membrane includes: an aerator body 100, a ROS microporous aeration membrane 200, and an annular cap 300. An aeration chamber 110 is formed within the aerator body 100. A ventilation channel 120 is formed at the first end of the aerator body 100, communicating with the first end of the aeration chamber 110. A plurality of first ventilation holes 130 are formed at the second end of the aerator body 100, with the first end of each first ventilation hole 130 communicating with the second end of the aeration chamber 110. The first ventilation holes 130 are arranged sequentially to form multiple layers of the same membrane. The aerator body 100 has a ventilation ring 131 and a plurality of first connecting grooves 140 on its first end. Each first connecting groove 140 is used to connect the second ends of two adjacent first ventilation holes 130 of the ventilation ring 131. The ROS microporous aeration membrane 200 is disposed on the second end of the aerator body 100 and covers each of the first ventilation holes 130. The annular cap 300 is disposed on the second end of the aerator body 100 and abuts against the outer edge of the ROS microporous aeration membrane 200.

[0031] In this embodiment, an aeration chamber 110 is formed inside the aerator body 100. An air passage 120 on the first end of the aerator body 100 communicates with the first end of the aeration chamber 110. Each first air vent 130 on the second end of the aerator body 100 communicates with the second end of the aeration chamber 110. The first air vents 130 are arranged sequentially to form multiple concentrically arranged air rings 131, i.e., the first air vents 130 are arranged sequentially to form multiple concentric circles, enabling ROS microporous aeration. The membrane 200 is aligned with each of the first vent holes 130. When pressurized aeration is performed, air can enter the aeration chamber 110 through the venting channel 120, and then be sprayed outward through each of the first vent holes 130 to act on the ROS microporous aeration membrane 200. Finally, the air passes through the ROS microporous aeration membrane 200 to aerate outward, which can comprehensively act on the ROS microporous aeration membrane 200, thereby achieving more uniform micro-nano bubble aeration and improving the aeration efficiency of the ROS microporous aeration membrane 200.

[0032] In this embodiment, the first connecting grooves 140 on the first end of the aerator body 100 can connect the second ends of the first air holes 130 of each air ring 131 to each other, which makes the force on the ROS microporous aeration membrane 200 more balanced and has a better aeration effect. The ROS microporous aeration membrane 200 is a polyethylene microporous aeration membrane. Due to the high membrane porosity, ultra-large specific surface area, low aeration resistance, near-zero pore size deformation, acid and alkali resistance and high salt resistance of the polyethylene microporous aeration membrane, the airflow fully passes through the polyethylene microporous aeration membrane. It can generate smaller bubbles with a higher bubble density per unit volume and more uniform distribution, resulting in a high mass transfer coefficient and higher oxygen transfer efficiency. Compared with traditional aeration membranes, it produces smaller bubbles and has higher oxygen mass transfer efficiency. At the same time, it can utilize the piezoelectric catalytic effect of the membrane material to generate active oxygen, which has advanced oxidation effects. Therefore, the balanced forces can better promote the piezoelectric catalytic effect of polyethylene microporous aeration membrane to generate active oxygen, oxidize and decompose organic pollutants in water, and thus achieve better advanced oxidation effects.

[0033] In one embodiment, such as Figure 3 and Figure 5 As shown, a plurality of second connecting grooves 150 are provided on the first end of the aerator body 100. Each second connecting groove 150 is used to connect the second ends of the two first air holes 130 of two adjacent air rings 131. Specifically, the second connecting grooves 150 on the first end of the aerator body 100 can connect each air ring 131, that is, the second end of the first air hole 130 on one air ring 131 can be connected to the second end of the first air hole 130 on another air ring 131. This can further enable the ROS microporous aeration membrane 200 to be subjected to a balanced force, thereby acting evenly on the ROS microporous aeration membrane 200, achieving more uniform micro-nano bubble aeration, and improving the aeration efficiency of the ROS microporous aeration membrane 200.

[0034] In one embodiment, the aerator body 100 is provided with a first connecting pipe and a second connecting pipe. The first connecting pipe is connected to the aerator body 100. A first ventilation cavity is formed on the first connecting pipe, and a spiral groove is formed on the side wall of the first ventilation cavity. A guide post is provided on the second connecting pipe. The second connecting pipe is rotatably disposed in the first ventilation cavity, and the outer surface of the second connecting pipe is in movable contact with the side wall of the first ventilation cavity. The guide post is slidably disposed in the spiral groove. A second ventilation cavity is formed on the second connecting pipe, and the second ventilation cavity communicates with the first ventilation cavity to form the ventilation channel 120. Specifically, the first end of the first connecting pipe is connected to the aerator body 100, the first ventilation chamber is connected to the first end of the aeration chamber 110, the second connecting pipe is rotatably disposed in the second end of the first connecting pipe, and is slidably disposed in the spiral groove in cooperation with the guide post on the second connecting pipe. The second connecting pipe can be extended and retracted on the first connecting pipe, and the overall length of the first connecting pipe and the second connecting pipe can be adjusted, thereby adjusting the height of the aerator body 100 and adjusting the aeration area of ​​the aerator body 100 as needed to perform aeration more evenly.

[0035] In one embodiment, a sealing gasket is provided on the side wall of the first ventilation chamber, and the outer surface of the second connecting pipe is in movable contact with the sealing gasket. Specifically, by providing a sealing gasket on the side wall of the first ventilation chamber, the outer surface of the second connecting pipe abuts against the sealing gasket while rotating within the first ventilation chamber, which improves the airtightness between the second connecting pipe and the first connecting pipe, achieving a good sealing effect. This allows air to flow better from the second ventilation chamber to the first ventilation chamber, that is, to flow better through the ventilation channel 120 into the aeration chamber 110.

[0036] In one embodiment, the advanced oxidation device 10 based on the ROS aeration membrane further includes a limiting bolt. A threaded hole is provided on the first connecting pipe, the threaded hole communicating with the first ventilation chamber. The first end of the limiting bolt is screwed into the threaded hole, and the first end of the limiting bolt movably abuts against the outer surface of the second connecting pipe. Specifically, the opening direction of the threaded hole is perpendicular to the opening direction of the first ventilation chamber. The limiting bolt is screwed into the threaded hole, passes through the first threaded hole, and abuts against the outer surface of the second connecting pipe, thus limiting the position of the adjusted second connecting pipe in the first ventilation chamber. This ensures that the positions of the second connecting pipe and the first connecting pipe remain relatively stationary, thereby enabling a more stable connection between the second connecting pipe and the first connecting pipe.

[0037] In one embodiment, a plurality of second vent holes are provided on the second end of the aerator body 100. Each second vent hole is arranged alternately with each first vent hole 130, and the width of the second vent hole is different from the width of the first vent hole 130. Specifically, each second vent hole is connected to the second end of the aeration chamber 110 and is arranged alternately with each first vent hole 130. Since the aperture of the second vent hole is different from the aperture of the first vent hole 130, for example, the aperture of the second vent hole is larger than the aperture of the first vent hole 130, or the aperture of the second vent hole is smaller than the aperture of the first vent hole 130, when the airflow is sprayed outward, both can uniformly generate two forces that act comprehensively on the ROS microporous aeration membrane 200. This can better promote the piezoelectric catalysis of the polyethylene microporous aeration membrane to generate active oxygen, oxidize and decompose organic pollutants in the water, and have a better advanced oxidation effect.

[0038] In one embodiment, the width of the first end of the first vent 130 is greater than the width of the second end of the first vent 130. Specifically, the diameter of the end of the first vent 130 that communicates with the aeration chamber 110 is greater than the diameter of the end that is away from the aeration chamber 110. In this way, the air entering the aeration chamber 110 from the ventilation channel 120 can be better sprayed out through the first vent 130 and act on the ROS microporous aeration membrane 200.

[0039] In one embodiment, the annular cap 300 is provided with an internal thread, and the second end of the aerator body 100 is provided with an external thread. The annular cap 300 is threadedly connected to the second end of the aerator body 100 through the internal and external threads. Specifically, the inner sidewall of the annular cap 300 is provided with an internal thread, and the outer surface of the aerator body 100 is provided with an external thread. The annular cap 300 can be screwed onto the second end of the aerator body 100 through the internal and external threads. When the annular cap 300 abuts against the outer edge of the ROS microporous aeration membrane 200, it can stably limit the ROS microporous aeration membrane 200 to the second end of the aerator body 100.

[0040] In one embodiment, an annular limiting block is provided on the annular cap 300, and an annular limiting groove is provided on the second end of the aerator body 100. The annular limiting block is fitted into the annular limiting groove, and the annular limiting block moves against the ROS microporous aeration membrane 200. Specifically, by providing an annular limiting block on the annular cap 300 and an annular limiting groove on the second end of the aerator body 100, when the ROS microporous aeration membrane 200 is placed on the second end of the aerator body 100, the ROS microporous aeration membrane 200 correspondingly covers the annular limiting groove. When the annular cap 300 is screwed onto the second end of the aerator body 100, the annular limiting block acts on the portion of the ROS microporous aeration membrane 200 aligned with the annular limiting groove and presses it into the annular limiting groove. This increases the contact area between the ROS microporous aeration membrane 200 and the annular cap 300, thereby allowing the annular cap 300 to more stably limit the ROS microporous aeration membrane 200 on the second end of the aerator body 100. Furthermore, the annular limiting block has a semi-circular cross-sectional shape, which allows the annular limiting block to better press the portion of the ROS microporous aeration membrane 200 aligned with the annular limiting groove into the annular limiting groove.

[0041] Compared with the prior art, the present invention has at least the following advantages:

[0042] This invention provides an advanced oxidation device based on a ROS aeration membrane. An aeration chamber is formed within the aerator body. An air passage at the first end of the aerator body connects to the first end of the aeration chamber, and first air vents at the second end of the aerator body connect to the second end of the aeration chamber. These first air vents are arranged in a series of concentrically arranged air rings. The ROS microporous aeration membrane is aligned with each of the first air vents. This allows air forced in through the air passage to enter the aeration chamber and then be ejected outwards through the first air vents, acting on the ROS microporous aeration membrane. This ensures comprehensive and uniform aeration of the ROS microporous aeration membrane, improving its aeration efficiency. Furthermore, a first connecting groove connects the second ends of the first air vents in each air ring, resulting in a more balanced force on the ROS microporous aeration membrane and improved aeration performance, thus achieving a better advanced oxidation effect.

[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An advanced oxidation device based on a ROS aeration membrane, characterized in that, include: An aerator body has an aeration chamber inside. A ventilation channel is provided on the first end of the aerator body, and the ventilation channel is connected to the first end of the aeration chamber. A plurality of first ventilation holes are provided on the second end of the aerator body, and the first end of each first ventilation hole is connected to the second end of the aeration chamber. The first ventilation holes are arranged sequentially to form multiple concentric ventilation rings. A plurality of first connecting grooves are provided on the first end of the aerator body, and each first connecting groove is used to connect the second ends of two adjacent first ventilation holes of a ventilation ring. ROS microporous aeration membrane, wherein the ROS microporous aeration membrane is disposed on the second end of the aerator body and the ROS microporous aeration membrane covers each of the first air vents; An annular cap is disposed on the second end of the aerator body and abuts against the outer edge of the ROS microporous aeration membrane.

2. The advanced oxidation device based on ROS aeration membrane according to claim 1, characterized in that, The aerator body has a plurality of second connecting slots on its first end, and each second connecting slot is used to connect the second ends of the two first air holes of two adjacent air rings.

3. The advanced oxidation device based on ROS aeration membrane according to claim 1, characterized in that, The aerator body is provided with a first connecting pipe and a second connecting pipe. The first connecting pipe is connected to the aerator body and has a first ventilation chamber. A spiral groove is formed on the side wall of the first ventilation chamber. A guide post is provided on the second connecting pipe. The second connecting pipe is rotatably disposed in the first ventilation chamber, and the outer surface of the second connecting pipe is in movable contact with the side wall of the first ventilation chamber. The guide post is slidably disposed in the spiral groove. A second ventilation chamber is formed on the second connecting pipe and communicates with the first ventilation chamber to form the ventilation channel.

4. The advanced oxidation device based on ROS aeration membrane according to claim 3, characterized in that, A sealing gasket is provided on the side wall of the first ventilation chamber, and the outer surface of the second connecting pipe is in movable contact with the sealing gasket.

5. The advanced oxidation device based on ROS aeration membrane according to claim 3, characterized in that, Also includes: The limiting bolt has a threaded hole on the first connecting pipe, which is connected to the first venting cavity. The first end of the limiting bolt is screwed into the threaded hole, and the first end of the limiting bolt moves against the outer surface of the second connecting pipe.

6. The advanced oxidation device based on ROS aeration membrane according to claim 1, characterized in that, The aerator body has a plurality of second air holes on its second end. Each second air hole is arranged alternately with each first air hole. The width of the second air hole is different from the width of the first air hole.

7. The advanced oxidation device based on ROS aeration membrane according to claim 1, characterized in that, The width of the first end of the first vent is greater than the width of the second end of the first vent.

8. The advanced oxidation device based on ROS aeration membrane according to claim 1, characterized in that, The annular cap is provided with an internal thread, and the second end of the aerator body is provided with an external thread. The annular cap is threadedly connected to the second end of the aerator body through the internal thread and the external thread.

9. The advanced oxidation device based on ROS aeration membrane according to claim 8, characterized in that, An annular limiting block is provided on the annular pressure cap, and an annular limiting groove is provided on the second end of the aerator body. The annular limiting block is embedded in the annular limiting groove, and the annular limiting block moves against the ROS microporous aeration membrane.

10. The advanced oxidation device based on ROS aeration membrane according to claim 9, characterized in that, The cross-sectional shape of the annular limiting block is semi-circular.

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