MBR (Membrane Bioreactor) membrane treatment device with high-pressure compressed air aeration pipes additionally arranged among membrane filaments

Abstract

The utility model discloses an MBR (Membrane Biological Reactor) membrane treatment device additionally provided with high-pressure compressed air aeration pipes among membrane filaments, which comprises a main body assembly, a first water collecting pipe, membrane filaments, a membrane group and a second water collecting pipe, the second water collecting pipe is connected to the outer lower surface of the membrane module in a penetrating manner, the first compressed air aeration pipe is connected to the lower end of the outer surface of the membrane module in a penetrating manner, and the second compressed air aeration pipe is connected to the middle lower section of the outer surface of the membrane module in a penetrating manner; the third compressed air aeration pipe is communicated with the middle upper section of the outer surface of the membrane module. According to the utility model, the problems that the membrane pollution is serious and the water yield is greatly reduced due to the fact that aeration air less than 1bar is used for aeration flushing and sludge discharge in the middle of the membrane module and at the lower part of the membrane module in the traditional MBR sewage treatment, a water collecting pipeline is arranged at the lower part of the membrane module, aeration cannot effectively enter the space between membrane wires, and sludge is easy to accumulate between the membrane wires after long-term operation and use are solved.

Description

Technical Field

[0001] The utility model relates to the technical fields of sewage and wastewater treatment, solid-liquid separation and organic biochemical treatment, in particular to an MBR membrane treatment device with high-pressure compressed air aeration pipes added between membrane fibers. Background Art

[0002] MBR membrane is a sewage treatment device that combines membrane separation technology and biological treatment technology. MBR membrane, namely membrane-bioreactor (Membrane Bio-Reactor), is a sewage treatment system that combines ultra- and microfiltration membrane separation technology with biological treatment technology. This system uses membrane components to replace the secondary sedimentation tank at the end of traditional biological treatment technology, maintains a high activated sludge concentration in the bioreactor, and improves the processing capacity of organic load.

[0003] Traditional MBR wastewater treatment usually uses aeration with less than 1 bar aeration air in the middle of the membrane group, which is located at the bottom of the membrane group, to flush and discharge sludge. Since there is a water collection pipeline at the bottom of the membrane group, aeration cannot effectively enter between the membrane fibers. Sludge is easily accumulated between the membrane fibers during long-term operation, resulting in serious membrane pollution and a significant decrease in water production. Utility Model Content

[0004] The utility model aims to provide an MBR membrane treatment device with an additional high-pressure compressed air aeration pipe between membrane fibers, so as to solve the problem proposed in the above-mentioned background technology that traditional MBR sewage treatment usually adopts aeration flushing and sludge discharge with aeration wind less than 1 bar in the middle of the membrane group and located at the bottom of the membrane group. Since there is a water collection pipeline at the bottom of the membrane group, aeration cannot effectively enter between the membrane fibers. Sludge is easily accumulated between the membrane fibers during long-term operation, resulting in serious membrane pollution and a significant decrease in water production.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is an MBR membrane treatment device with a high-pressure compressed air aeration pipe added between membrane fibers, comprising:

[0007] A main body component, the main body component comprising a first water collecting pipe, membrane filaments, a membrane group, and a second water collecting pipe;

[0008] The membrane filaments are connected through the lower surface of the first water collecting pipe, the membrane group is composed of the membrane filaments, and the second water collecting pipe is connected through the outer lower surface of the membrane group.

[0009] Furthermore, the main body assembly also includes a first compressed air aeration pipe, a second compressed air aeration pipe, a third compressed air aeration pipe, and a fourth compressed air aeration pipe;

[0010] The first compressed air aeration pipe is connected to the lower end of the outer surface of the membrane group, the second compressed air aeration pipe is connected to the middle and lower section of the outer surface of the membrane group, the third compressed air aeration pipe is connected to the middle and upper section of the outer surface of the membrane group, and the fourth compressed air aeration pipe is connected to the upper end of the outer surface of the membrane group.

[0011] Furthermore, one side of the first compressed air aeration pipe, the second compressed air aeration pipe, the third compressed air aeration pipe and the fourth compressed air aeration pipe is fixedly connected with a connecting pipe, and an aeration connecting port is opened in the middle of the outer surface of the connecting pipe.

[0012] Furthermore, the upper surface of the membrane filaments is connected to the first water collecting pipe, and the lower surface of the membrane filaments is connected to the second water collecting pipe.

[0013] Furthermore, the first compressed air aeration pipe, the second compressed air aeration pipe, the third compressed air aeration pipe and the fourth compressed air aeration pipe are distributed on the outer surface of the membrane group at equal distances.

[0014] Furthermore, the first compressed air aeration pipe, the second compressed air aeration pipe, the third compressed air aeration pipe and the fourth compressed air aeration pipe are high-pressure compressed air aeration pipes.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. The utility model, through the arrangement of membrane threads, membrane groups, the first compressed air aeration pipe, the second compressed air aeration pipe, the third compressed air aeration pipe, the fourth compressed air aeration pipe, the connecting pipe and the aeration connecting port, when the membrane group filters sewage, first, the membrane threads draw clean water from the sewage pool into the inside of the membrane threads, and collect it into the inside of the clean water pool through the first collecting pipe. When sludge is accumulated between the membrane threads, the staff starts the high-pressure air pipe through the external control module, and the high-pressure aeration connecting port pressurizes the connecting pipe, and aerates the membrane threads by arranging four high-pressure compressed air aeration pipes, so as to achieve the aeration and sludge discharge effect, so that the membrane group 13 can maintain high-efficiency treatment for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a front view schematic diagram of the MBR membrane of the utility model;

[0019] Figure 2 It is a side schematic diagram of the MBR membrane of the utility model.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 11. First water collecting pipe; 12. Membrane filaments; 13. Membrane group; 14. Second water collecting pipe; 15. First compressed air aeration pipe; 16. Second compressed air aeration pipe; 17. Third compressed air aeration pipe; 18. Fourth compressed air aeration pipe; 19. Connecting pipe; 20. Aeration connecting port. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] See also Figure 1-Figure 2 As shown, this embodiment is an MBR membrane treatment device with a high-pressure compressed air aeration pipe added between membrane fibers, comprising:

[0027] The main body assembly includes a first water collecting pipe 11, membrane wires 12, membrane groups 13, and a second water collecting pipe 14;

[0028] The membrane wires 12 are connected to the lower surface of the first water collecting pipe 11, the membrane group 13 is composed of the membrane wires 12, and the second water collecting pipe 14 is connected to the outer lower surface of the membrane group 13;

[0029] The upper surface of the membrane filament 12 is connected to the first water collecting pipe 11, and the lower surface of the membrane filament 12 is connected to the second water collecting pipe 14;

[0030] The main body assembly also includes a first compressed air aeration pipe 15, a second compressed air aeration pipe 16, a third compressed air aeration pipe 17, and a fourth compressed air aeration pipe 18;

[0031] The first compressed air aeration pipe 15 is connected to the lower end of the outer surface of the membrane group 13, the second compressed air aeration pipe 16 is connected to the middle and lower section of the outer surface of the membrane group 13, the third compressed air aeration pipe 17 is connected to the middle and upper section of the outer surface of the membrane group 13, and the fourth compressed air aeration pipe 18 is connected to the upper end of the outer surface of the membrane group 13;

[0032] The first compressed air aeration pipe 15, the second compressed air aeration pipe 16, the third compressed air aeration pipe 17 and the fourth compressed air aeration pipe 18 are equidistantly distributed on the outer surface of the membrane group 13;

[0033] A connecting pipe 19 is fixedly connected to one side of the first compressed air aeration pipe 15, the second compressed air aeration pipe 16, the third compressed air aeration pipe 17 and the fourth compressed air aeration pipe 18, and an aeration connection port 20 is opened in the middle of the outer surface of the connecting pipe 19;

[0034] The first compressed air aeration pipe 15, the second compressed air aeration pipe 16, the third compressed air aeration pipe 17 and the fourth compressed air aeration pipe 18 are high-pressure compressed air aeration pipes;

[0035] Working principle:

[0036] When the membrane group 13 filters the sewage;

[0037] First, the membrane filaments 12 draw clean water from the sewage pool into the membrane filaments 12, and collect it into the clean water pool through the first water collecting pipe 11;

[0038] When sludge accumulates between the membrane fibers 12, the staff starts the high-pressure air pipe through the external control module, and the high-pressure aeration connection port 20 pressurizes the connection pipe 19;

[0039] The membrane filaments 12 are aerated by providing four high-pressure compressed air aeration pipes;

[0040] In this step, four high-pressure compressed air aeration pipes are arranged between the membrane filaments 12 and outside the membrane group 13 to achieve the aeration and mud removal effect, so that the membrane group 13 can maintain high-efficiency treatment for a long time.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An MBR membrane treatment device with a high-pressure compressed air aeration pipe added between membrane fibers, characterized in that: include: A main body component, the main body component comprising a first water collecting pipe (11), membrane filaments (12), a membrane group (13), and a second water collecting pipe (14); The membrane filaments (12) are connected through the lower surface of the first water collecting pipe (11), the membrane group (13) is composed of the membrane filaments (12), and the second water collecting pipe (14) is connected through the outer lower surface of the membrane group (13).

2. The MBR membrane treatment device according to claim 1, wherein high-pressure compressed air aeration pipes are added between membrane fibers, characterized in that: The main body assembly further comprises a first compressed air aeration pipe (15), a second compressed air aeration pipe (16), a third compressed air aeration pipe (17), and a fourth compressed air aeration pipe (18); The first compressed air aeration pipe (15) is connected to the lower end of the outer surface of the membrane group (13), the second compressed air aeration pipe (16) is connected to the middle and lower section of the outer surface of the membrane group (13), the third compressed air aeration pipe (17) is connected to the middle and upper section of the outer surface of the membrane group (13), and the fourth compressed air aeration pipe (18) is connected to the upper end of the outer surface of the membrane group (13).

3. The MBR membrane treatment device according to claim 2, wherein a high-pressure compressed air aeration pipe is additionally provided between membrane fibers, characterized in that: A connecting pipe (19) is fixedly connected to one side of the first compressed air aeration pipe (15), the second compressed air aeration pipe (16), the third compressed air aeration pipe (17) and the fourth compressed air aeration pipe (18), and an aeration connecting port (20) is provided in the middle of the outer surface of the connecting pipe (19).

4. The MBR membrane treatment device according to claim 1, wherein high-pressure compressed air aeration pipes are added between membrane fibers, characterized in that: The upper surface of the membrane filament (12) is in communication with the first water collecting pipe (11), and the lower surface of the membrane filament (12) is in communication with the second water collecting pipe (14).

5. The MBR membrane treatment device with high-pressure compressed air aeration pipes added between membrane fibers according to claim 2, characterized in that: The first compressed air aeration pipe (15), the second compressed air aeration pipe (16), the third compressed air aeration pipe (17) and the fourth compressed air aeration pipe (18) are distributed at equal distances on the outer surface of the membrane group (13).

6. The MBR membrane treatment device according to claim 2, wherein high-pressure compressed air aeration pipes are added between membrane fibers, characterized in that: The first compressed air aeration pipe (15), the second compressed air aeration pipe (16), the third compressed air aeration pipe (17) and the fourth compressed air aeration pipe (18) are high-pressure compressed air aeration pipes.

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