CN219297268U

CN219297268U - Aeration membrane bioreactor

Info

Publication number: CN219297268U
Application number: CN202223537302.1U
Authority: CN
Inventors: 蒋西续; 周保昌
Original assignee: Nanjing Rge Membrane Tech Co ltd
Current assignee: Nanjing Rge Membrane Tech Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-07-04
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses an aeration membrane bioreactor, which comprises a bracket, an air inlet pipe, a first air blower and a second air blower, wherein the air inlet pipe is arranged at the top of the bracket; the air outlet pipe is arranged at the bottom of the bracket; the output end of the air inlet pipe and the input end of the air outlet pipe are both connected with the hollow fiber membrane; the aeration pipe is arranged at the bottom of the support, the input end of the aeration pipe is used for being connected with a second air blower, the output end of the aeration pipe is connected with the hollow fiber membrane, the air rich in oxygen is utilized to convey the air which is rich in oxygen to the inside of the membrane wire, so that the oxygen content in the inside of the membrane wire and the oxygen content in a specific water area are improved, the cultivation of microorganisms is facilitated, and the survival rate of the microorganisms and the water purification efficiency are improved.

Description

Aeration membrane bioreactor

Technical Field

The utility model relates to the technical field of bioreactors, in particular to an aeration membrane bioreactor.

Background

Hollow fiber membranes are membranes that are fibrous in shape and have a self-supporting function. Because the microporous diameter of the fiber membrane is small and is 0.1-0.5 mu m, bubbles invisible to naked eyes are generated by aeration, so that the fiber membrane is called bubble-free oxygen supply. The oxygen needed by the biological film is supplied by the fiber bundle filler, and the hollow fiber film not only plays the role of oxygen supply, but also is a carrier for fixing the biological film. That is, pure oxygen or air is bubbleless aerated by using micropores of the hollow fiber membrane as a biological membrane, the biological membrane formed outside the hollow fiber membrane is fully contacted with sewage, and organic matters contained in the sewage are adsorbed and oxidatively decomposed by the biological membrane, so that the sewage is purified. The external pipeline can enable water in the box to flow, and is more suitable for culturing microorganisms.

For example, patent CN201620149485.5 discloses a composite aeration membrane bioreactor, which comprises an aeration tank, wherein a partition plate and a membrane module are installed in the aeration tank, an aeration pipe is installed on the aeration tank, an outlet of the aeration pipe is positioned below the membrane module, the aeration pipe is connected with a blower, the membrane module is connected with a clean water pump, a submersible sewage pump is installed in the aeration tank, the submersible sewage pump is connected with an external sewage source through a pipeline, a vacuum meter is installed on the pipeline, the vacuum meter is only provided with one air inlet pipeline, the aeration quantity adjusting system for the membrane bioreactor is disclosed in patent CN202023109519.3, the system comprises a membrane bioreactor, a plurality of membrane modules are further arranged in the membrane bioreactor, an aerator is correspondingly arranged below each membrane module, the aerator is connected with an aeration main pipe, one end of the aeration main pipe is arranged in the membrane bioreactor, the other end of the aeration main pipe is provided with a first blower, one end of the aeration main pipe is also provided with a second blower, and the other end of the aeration main pipe is connected with an aeration main pipe for providing pulse air flow, and the aeration main pipe is provided with two air inlet pipelines, and finally the second air inlet pipeline is only provided with a first air inlet pipeline.

Under long-term operation, the local microorganism number is limited, and the culture environment is gradually deteriorated. At this time, the membrane wire needs to be replaced manually, corresponding chemical agents also need to be used, time and labor are wasted, and cost is high. On the other hand, the long-time aeration has high requirements on equipment sites, and has large energy consumption, thereby being unfavorable for wide use.

Disclosure of Invention

The utility model aims to: the utility model aims to solve the technical problem that the environment is gradually deteriorated due to long-time bubble-free aeration culture in the reactor, and provides the aeration membrane bioreactor for reducing manual cleaning and replacement.

The technical scheme is as follows: the utility model relates to an aeration membrane bioreactor, which comprises a bracket, an air inlet pipe, a first air blower and a second air blower, wherein the air inlet pipe is arranged at the top of the bracket; the air outlet pipe is arranged at the bottom of the bracket; the output end of the air inlet pipe and the input end of the air outlet pipe are both connected with the hollow fiber membrane; the aeration pipe is arranged at the bottom of the bracket, the input end of the aeration pipe is used for being connected with a second air blower, and the output end of the aeration pipe is connected with the hollow fiber membrane.

Preferably, the hollow fiber membrane is connected with the air inlet pipe through a silica gel hose.

Preferably, the hollow fiber membrane is connected with the air outlet pipe through a silica gel hose.

Preferably, the water diversion pipe also comprises a water diversion pipe, and the input end of the water diversion pipe is connected with the output end of the air outlet pipe.

Preferably, the water diversion pipe is connected with the air outlet pipe through a silica gel hose.

Preferably, the bracket is of a square box structure.

The beneficial effects are that: according to the utility model, the air rich in oxygen is conveyed to the inside of the membrane wire by the blower, so that the oxygen content in the membrane wire and in a specific water area is improved, the cultivation of microorganisms is facilitated, the survival rate of the microorganisms and the water purification efficiency are improved, the fluidity of the water body is increased by bottom aeration, and the cultivation of more microorganisms is facilitated; the extra cost caused by manual cleaning is reduced; avoiding a great deal of energy consumption generated by long-time aeration.

Drawings

FIG. 1 is a schematic view of the internal structure of the present utility model;

FIG. 2 is a schematic view of the external structure of the present utility model;

wherein, 1, a bracket; 2. a water conduit; 3. an air outlet pipe; 4. an aeration pipe; 5. an air inlet pipe; 6. hollow fiber membranes.

Detailed Description

As shown in fig. 1 to 2, the aeration membrane bioreactor of the utility model comprises a bracket 1 with a square box structure, an air inlet pipe 5 arranged at the top of the bracket 1, and an input end of the air inlet pipe is used for being connected with a first blower; the air outlet pipe 3 is arranged at the bottom of the bracket 1; the hollow fiber membrane 6, the membrane silk of this hollow fiber membrane 6 is all connected to the output of intake pipe 5 and the input of outlet duct 3, in the membrane silk of air-blower transport and distribution oxygen to hollow fiber membrane 6 is connected through intake pipe 5, aeration pipe 4 installs in support 1 bottom, the input of aeration pipe 4 is used for connecting the second air-blower, and hollow fiber membrane 6 is connected to the output, carries more air to specific waters. In this embodiment, the air outlet pipe 3 and the air inlet pipe 5 are installed symmetrically up and down.

The hollow fiber membrane 6 is connected with the plastic bracket through sealing glue, and is connected with the air inlet pipe 5 and the air outlet pipe 3 through a silica gel hose.

The reactor in the embodiment also comprises a water diversion pipe 2, wherein the input end of the water diversion pipe 2 is connected with the output end of the air outlet pipe 3 through a silica gel hose, and the residual gas consumed by the membrane wires is discharged to the water diversion pipe 2; because the water diversion pipe 2 is connected with the air outlet pipe 3, the air is discharged to the water diversion pipe 2 through the air outlet pipe 3, thereby achieving the purpose of promoting the water flow.

In the embodiment, 4 rigid fixed support frames consisting of square hollow steel pipes are arranged in the structure of the bracket 1 and are distributed and fixed at four corners of the air inlet pipe 5; the air outlet pipe 3 is provided with a quick plug for being connected with the water diversion pipe 2.

As shown in figure 1, when in use, the whole reactor is immersed in water, a silica gel hose is used for connecting a blower with an air inlet pipe 5, gas is conveyed into a hollow fiber membrane 6, and the reacted gas is discharged through the silica gel hose connected with a water conduit 2 through a water outlet pipe 3, so that the effect of water body flow is achieved. The aeration pipe 4 is connected with a blower, and aeration is started from the bottom, so that the local water area reaches higher oxygen content and fluidity of the water body.

Claims

1. An aerated film bioreactor comprising a support (1), characterized in that it further comprises:

the air inlet pipe (5) is arranged at the top of the bracket (1), and the input end of the air inlet pipe is used for being connected with the first air blower;

the air outlet pipe (3) is arranged at the bottom of the bracket (1);

the output end of the air inlet pipe (5) and the input end of the air outlet pipe (3) are both connected with the hollow fiber membrane (6);

the aeration pipe (4) is arranged at the bottom of the bracket (1), the input end of the aeration pipe (4) is used for being connected with a second air blower, and the output end of the aeration pipe is connected with the hollow fiber membrane (6).

2. An aerated membrane bioreactor according to claim 1, characterized in that the hollow fiber membranes (6) are connected to the air inlet tube (5) by means of a silicone hose.

3. An aerated film bioreactor as claimed in claim 1, characterized in that the hollow fiber membranes (6) are connected to the outlet tube (3) by means of a silicone hose.

4. An aerated membrane bioreactor as claimed in claim 1, further comprising a water conduit (2), the inlet end of the water conduit (2) being connected to the outlet end of the outlet pipe (3).

5. An aerated film bioreactor as claimed in claim 4, characterized in that the water conduit (2) is connected to the air outlet pipe (3) by a silicone hose.

6. An aerated film bioreactor as claimed in claim 1, characterized in that the support (1) is of square box construction.