CN212174565U

CN212174565U - In-situ micro-aeration membrane biological reaction device

Info

Publication number: CN212174565U
Application number: CN202020327592.9U
Authority: CN
Inventors: 曾千千; 梁晓雨; 邓颖; 史蒂芬; 林红军; 申利国
Original assignee: Zhejiang Normal University CJNU
Current assignee: Zhejiang Normal University CJNU
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-12-18
Anticipated expiration: 2030-03-16

Abstract

The utility model provides a little aeration membrane biological reaction device of normal position, this little aeration membrane biological reaction device of normal position include membrane biological reaction pond, anode electrode, wire and at least one membrane module, membrane module and anode electrode all set up inside the membrane biological reaction pond, and the membrane module passes through the wire is connected in the power negative pole, the anode electrode passes through the wire is connected in the power anodal. Under the condition of micro current, the in-situ micro aeration of the membrane component can be realized, so that the effect of cleaning the membrane component is achieved, the cost of cleaning the membrane component is reduced, and the service life of the membrane component is prolonged.

Description

In-situ micro-aeration membrane biological reaction device

Technical Field

The utility model relates to the technical field of separation membranes, in particular to an in-situ micro-aeration membrane biological reaction device.

Background

The membrane separation technology plays a great role in the field of water treatment due to the advantages of high efficiency, energy conservation, easy integration and the like. However, in the actual application of industrial sewage treatment, the phenomenon of membrane pollution generally exists, the membrane is very easy to adsorb organic pollutants in water in the operation process so as to block membrane pores, so that the membrane flux gradually decreases along with the filtering duration, the permeability of the membrane is reduced, the stable and normal operation of the membrane is influenced, the application cost of the membrane technology is improved due to the cleaning and replacement of the membrane, and the membrane pollution is not only an important reason influencing the economical efficiency of the membrane separation process, but also an important key influencing the practical application of the membrane separation. Although permanent intermittent aeration of the MBR (membrane bioreactor) bottom with external source and chemical cleaning of the membrane can slow down membrane fouling, it is complicated to operate and easily destroys the membrane surface structure.

Therefore, it is necessary to provide an apparatus which is environment-friendly, simple and efficient, does not damage the surface structure of the membrane, and can simultaneously clean a large number of membrane modules.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a little aeration membrane biological reaction unit of normal position, this membrane biological reaction unit utilize the electrolysis water principle to realize at membrane module surface normal position aeration, can slow down membrane pollution, easy operation just can prolong the life and the reduce cost of membrane module to solve among the prior art membrane biological reaction unit's the complicated and easy technical problem who destroys membrane surface structure of operation.

In order to realize the aim, the utility model provides an in-situ micro-aeration membrane biological reaction device.

The in-situ micro-aeration membrane biological reaction device comprises a membrane biological reaction tank, an anode electrode, a lead and at least one membrane component, wherein:

the membrane module and the anode electrode are both arranged in the membrane biological reaction tank, the membrane module is connected to the negative electrode of a power supply through the lead, and the anode electrode is connected to the positive electrode of the power supply through the lead.

Further, the membrane module is provided with a plurality of membrane modules, the membrane modules are arranged independently from each other, and each membrane module is connected to the negative pole of the power supply.

Further, a plurality of the membrane modules are arranged in parallel.

Further, the membrane module is a metal separation composite membrane module.

Further, the top end of the membrane assembly is fixedly connected with the lead.

Further, the top end of the membrane assembly is connected with the lead in a welding mode.

Further, the anode electrode is a carbon rod, one end of the carbon rod is connected with the lead, and the other end of the carbon rod is a free end.

Furthermore, one end of the carbon rod is fixedly connected with the lead.

Furthermore, one end of the carbon rod is connected with the lead in a welding mode.

Furthermore, a water outlet is arranged on the membrane component.

Furthermore, the membrane biological reaction device also comprises a water outlet pipe, the water outlet is arranged at the top of the membrane component, and the water outlet pipe is connected with the water outlet.

The utility model discloses a technological effect and advantage:

(1) the membrane cleaning device is simple and convenient to operate, realizes in-situ aeration on the surface of the membrane component by utilizing the electrolyzed water principle under the condition of introducing micro current, achieves the effect of cleaning the membrane, can slow down membrane pollution, reduces the cost of cleaning the membrane and prolongs the service life of the membrane.

(2) The low-energy-consumption cleaning effect of the membrane modules is realized, the membrane cleaning device is suitable for cleaning industrial large-scale and high-density membrane separation modules, and the high cost caused by membrane cleaning is saved.

(3) The equipment is simple, easy to operate and replace, the service life of the membrane is prolonged, the filtering performance of the membrane is improved, and the economical efficiency and the practicability of the membrane are improved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic structural view of the membrane bioreactor for in-situ micro-aeration according to the present invention.

In the figure:

1. a membrane biological reaction tank; 2. a membrane module; 3. an anode electrode; 4. a wire; 5. a power source; 6. and (5) discharging a water pipe.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The invention discloses an in-situ micro-aeration membrane biological reaction device, which is mainly formed by combining a membrane biological reaction tank 1, an anode electrode 3, a lead 4 and a membrane component 2 as shown in figure 1; wherein, fig. 1 shows a membrane biological reaction tank 1 with a square structure, and the membrane biological reaction tank 1 can be designed into different shapes and structures, such as a circle, a polygon, etc., according to actual needs; one or more membrane modules 2 may be provided; the membrane module 2 and the anode electrode 3 are both arranged inside the membrane biological reaction tank 1, and the membrane module 2 and the anode electrode 3 are both immersed in a solution inside the membrane biological reaction tank 1, such as sewage to be treated, the membrane module 2 is connected to the negative electrode of a power supply 5 through a lead 4, and one end of the anode electrode 3 is connected to the positive electrode of the power supply 5 through the lead 4. Therefore, under the condition of micro current, in-situ micro aeration of the membrane module 2 can be realized, so that the effect of cleaning the membrane module 2 is achieved, the cost of cleaning the membrane module 2 is reduced, and the service life of the membrane module 2 is prolonged. As another embodiment of the present invention, the membrane modules 2 are provided in plurality, and the membrane modules 2 are contactless with each other, and each membrane module 2 is connected to the negative electrode of the power supply 5, so that it can be understood that the membrane modules 2 are in a parallel structure.

As shown in FIG. 1, a plurality of membrane modules 2 are fixed in parallel in a membrane biological reaction tank 1, so that the membrane biological reaction tank 1 can simultaneously realize the low-energy-consumption cleaning effect of the membrane modules 2.

As another embodiment of the present invention, the membrane module 2 is a metal separation composite membrane module.

It should be noted that the metal separation composite membrane in the present invention is a polymer-metal composite separation membrane, wherein the metal is copper or nickel, and the polymer is one of polyvinylidene fluoride, polysulfone, polyethylene or polypropylene; of course, the metal separation composite membrane can be other membrane structures in the prior art.

As another embodiment of the utility model, the top end of the membrane component 2 is fixedly connected with the lead 4 to ensure stable aeration; the connection mode can adopt welding, and the operation is simple and practical.

As another embodiment of the present invention, the anode electrode 3 is a carbon rod, as shown in fig. 1, one end of the carbon rod is connected to the lead wire 4, and the other end is a free end.

Furthermore, one end of the carbon rod is fixedly connected with the conducting wire 4 to ensure stable aeration; the connection mode can adopt welding, and the operation is simple and practical.

As another embodiment of the present invention, a water outlet is provided on the membrane module 2, as shown in fig. 1, the water outlet is mainly used for connecting a water outlet pipe 6 to realize water drainage.

As another embodiment of the utility model, the in-situ micro-aeration membrane biological reaction device further comprises a water outlet pipe 6, as shown in figure 1, the water outlet is arranged at the top of the membrane component 2, and the water outlet pipe 6 is connected with the water outlet and has good sealing performance.

In the embodiment of the utility model, the water inlet of the membrane biological reaction tank 1 can be input through the water pump, the water outlet can be discharged through the negative pressure suction and the water outlet pipe 6, and the sludge is intercepted in the membrane biological reaction tank 1 through the membrane component 2.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The in-situ micro-aeration membrane biological reaction device is characterized by comprising a membrane biological reaction tank (1), an anode electrode (3), a lead (4) and at least one membrane component (2), wherein:

the membrane module (2) and the anode electrode (3) are both arranged inside the membrane biological reaction tank (1), the membrane module (2) is connected to the negative pole of a power supply (5) through the lead (4), and the anode electrode (3) is connected to the positive pole of the power supply (5) through the lead (4).

2. The in-situ micro-aeration membrane biological reaction device according to claim 1, wherein the membrane module (2) is provided in plurality, and the membrane modules (2) are arranged independently from each other, and each membrane module (2) is connected to the negative electrode of the power supply (5).

3. The in situ micro-aerated membrane biological reaction device according to claim 2, wherein a plurality of the membrane modules (2) are arranged in parallel and in parallel.

4. The in-situ micro-aeration membrane biological reaction device according to claim 1, wherein the membrane module (2) is a metal separation composite membrane module.

5. The in situ micro-aeration membrane biological reaction device according to claim 1, wherein the top end of the membrane module (2) is fixedly connected with the lead wire (4).

6. The in-situ micro-aeration membrane biological reaction device according to claim 1, wherein the anode electrode (3) is a carbon rod, one end of the carbon rod is connected with the lead (4), and the other end is a free end.

7. The in situ micro-aeration membrane biological reaction device according to claim 6, wherein one end of the carbon rod is fixedly connected with the lead wire (4).

8. The in-situ micro-aeration membrane biological reaction device according to claim 1, wherein the membrane module (2) is provided with a water outlet.

9. The in situ micro-aeration membrane biological reaction device according to claim 8, wherein the membrane biological reaction device further comprises a water outlet pipe (6), the water outlet is arranged at the top of the membrane component (2), and the water outlet pipe (6) is connected with the water outlet.