CN204803081U - Compound integration MBR membrane bioreactor - Google Patents

Abstract

The utility model discloses a composite integrated MBR membrane bioreactor, which comprises an anaerobic MBR pool 1, an aerobic MBR pool 2, an equipment room 3, a walkway plate 4, a staircase 5, a return pipe 9, a return pump 91, a plate Frame film 10, blower 11, aeration pipe 15, LINPOR biological carrier 18, three-dimensional elastic biological carrier 19, three-dimensional elastic biological carrier support 20; Low energy, good sewage treatment effect, not easy to produce sludge bulking, and stable water discharge effect.

Description

A composite integrated MBR membrane bioreactor

technical field

The utility model relates to a sewage treatment project, in particular to a composite and integrated MBR membrane bioreactor.

Background technique

Membrane Bio-Reactor (MBR) is a new type of wastewater treatment system that organically combines membrane separation technology and biological treatment technology. Replace the terminal secondary sedimentation tank of traditional biological treatment technology with membrane modules, maintain a high concentration of activated sludge in the bioreactor, increase the organic load of biological treatment, thereby reducing the footprint of sewage treatment facilities, and reduce the remaining sewage by maintaining low sludge load amount of mud. Mainly use the membrane separation equipment immersed in the aerobic biological tank to retain the activated sludge and macromolecular organic matter in the retention tank. The concentration of activated sludge (MLSS) in the membrane bioreactor system can be increased to 8000~10,000mg/L, or even higher; the sludge age (SRT) can be extended to more than 30 days.

Due to its effective interception, the MBR reactor can retain microorganisms with a long generation cycle, and can realize deep purification of sewage. At the same time, nitrifying bacteria can fully reproduce in the system, and its nitrification effect is obvious, which provides the possibility for deep phosphorus and nitrogen removal.

At present, domestic MBR reactors are rarely used, and most of them are used in large-scale sewage treatment plants, which occupy a large area, high energy consumption, high operating costs, and poor treatment effects. Moreover, the existing MBR reactors are based on the original activated sludge process. , Membrane separation aeration, easy to produce sludge bulking, running water effect is not stable.

Utility model content

The utility model overcomes the deficiencies of the prior art and provides a composite integrated MBR membrane bioreactor, which has a compact structure, small volume, small footprint, low energy consumption for operation, good sewage treatment effect and is not easy to generate sludge Expansion, running water out effect is stable.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

A kind of composite integrated MBR membrane bioreactor, it comprises anaerobic MBR pond, aerobic MBR pond and equipment room, one side of described anaerobic MBR pond is provided with water inlet pipe, the other side of described anaerobic MBR pond A water pipe is installed on the side, and the water pipe communicates with one side of the aerobic MBR pool, and the other side of the aerobic MBR pool is provided with an equipment room; the anaerobic MBR pool is provided with a three-dimensional elastic biological carrier support, A three-dimensional elastic biological carrier is suspended on the support of the three-dimensional elastic biological carrier; an outlet pipe is arranged on the aerobic MBR pool.

Further, the aerobic MBR pool is equipped with a plurality of plate and frame membranes, and a self-priming pump is installed on the upper end of each of the plate and frame membranes, and the self-priming pump is connected with the outlet pipe through the suction pipe.

Furthermore, the interior of the aerobic MBR pool is filled with LINPOR biological carrier.

Furthermore, the inside of the aerobic MBR tank is provided with an aeration pipe; the equipment room is provided with a switch door, a blower, an air gathering pipe, a branch pipe and an automatic control system; The gas gathering pipe is connected to a plurality of branch pipes, and each branch pipe is connected to a blower.

Further, the aerobic MBR pool is provided with a return pump inside, and the return pump is connected with a return pipe; the aerobic MBR pool is connected with the anaerobic MBR pool through the return pipe.

Furthermore, the aeration pipe is an anti-blocking perforated aeration pipe.

Further, the composite integrated MBR membrane bioreactor is also provided with a walkway plate, the walkway plate is provided with walkway railings, and the walkway plate is connected with stairs.

Compared with the prior art, the beneficial effects of the utility model are:

1. The composite integrated MBR membrane bioreactor of the utility model is compact in structure, small in size, small in floor area, low in energy consumption in operation, convenient in transportation and installation, and simple in use and maintenance.

2. Sewage is sucked into the membrane through the self-priming pump installed on the upper end of the plate frame membrane and pumped out of the equipment, while impurities and macromolecular substances in the sewage are trapped on the membrane, which can fully and effectively purify the water quality.

3. The LINPOR biological carrier is easy to fill, and a large number of microorganisms adhere to it. The aeration device makes the LINPOR biological carrier move in a disorderly manner with the water flow. The carrier fully contacts and decomposes the pollutants in the water body, which not only effectively purifies the water quality, There will not be a series of problems such as the collapse and entanglement of the fixed packing, and there are two kinds of microorganisms in the attached phase and the suspended phase in the aerobic MBR tank, which increases the sewage purification.

4. The utility model is equipped with multiple blowers, which can provide sufficient oxygen for the nitrifying bacteria in the aerobic MBR tank, which is beneficial to enhance the sewage treatment capacity of the utility model.

5. The reflux system provided by the utility model can purify the sewage in a circular manner, so that the water quality can be fully and effectively purified.

6. The anti-blocking perforated aeration pipe effectively reduces the number of maintenance of the aeration device and saves manpower and material resources.

7. The setting of aisle boards, aisle railings and stairs facilitates the management of sewage treatment workers and ensures the personal safety of staff.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment.

Fig. 1 is a schematic diagram of the top view structure of the utility model.

Fig. 2 is a schematic cross-sectional view of the utility model.

The labels in the figure are: 1. Anaerobic MBR pool; 2. Aerobic MBR pool; 3. Equipment room; 4. Walkway board; 41. Walkway railing; 5. Stairs; 6. Water inlet pipe; 7. Water outlet pipe; 8 , outlet pipe; 81, suction pipe; 9, return pipe; 91, return pump; 10, plate and frame membrane; 11, blower; 12, branch pipe; 13, gas gathering pipe; 14, intake pipe; 15, aeration pipe; 1. Automatic control system; 17. Switching door; 18. LINPOR biological carrier; 19. Three-dimensional elastic biological carrier; 20. Three-dimensional elastic biological carrier support.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described. Embodiments of the present utility model include but are not limited to the following examples.

[Example 1]

A kind of composite integrated MBR membrane bioreactor shown in Fig. 1, Fig. 2, it comprises anaerobic MBR pond 1, aerobic MBR pond 2 and equipment room 3, one side of described anaerobic MBR pond 1 is arranged There is a water inlet pipe 6, and the other side of the anaerobic MBR pool 1 is equipped with a water pipe 7, and the water pipe 7 communicates with one side of the aerobic MBR pool 2, and the other side of the aerobic MBR pool 2 An equipment room 3 is provided; a three-dimensional elastic biological carrier support 20 is arranged in the anaerobic MBR pool 1, and a three-dimensional elastic biological carrier 19 is suspended on the three-dimensional elastic biological carrier support 20; an outlet pipe is arranged on the aerobic MBR pool 2 8.

After the sewage is pretreated, it enters the anaerobic MBR pool 1 through the water inlet pipe 6, and a three-dimensional elastic biological carrier support 20 is arranged in the anaerobic MBR pool 1, and the three-dimensional elastic biological carrier 19 is suspended in the three-dimensional elastic biological carrier support 20; the sewage In the anaerobic environment, the hydrolytic acidification bacteria and denitrification bacteria become the dominant bacteria and attach to the three-dimensional elastic biological carrier 19. In the dynamic flow of water, the microorganisms decompose the macromolecular organic matter in the water into small molecules through the hydrolysis and acidification reaction. Soluble organic matter, and then the sewage flows into the aerobic MBR pool 2 through the water pipe 7. The microorganisms in the sewage are under aerobic conditions, and the nitrifying bacteria are called the dominant species. They oxidize and decompose the soluble small molecule organic matter in the sewage to achieve the evolution of water quality. The purified sewage is discharged by the outlet pipe 8.

This embodiment is compact in structure, small in size, small in floor space, low in energy consumption in operation, convenient in transportation and installation, and simple in use and maintenance.

[Example 2]

A kind of composite integrated MBR membrane bioreactor shown in Fig. 1, Fig. 2, this embodiment has made further improvement on the basis of embodiment 1, aerobic MBR tank 2 is equipped with a plurality of plate frame membranes 10 In this embodiment, three frame films 10 are preferably installed, and a self-priming pump is installed on the upper end of each frame film 10, and the self-priming pump communicates with the outlet pipe 8 through a suction pipe 81.

The purified sewage in the aerobic MBR pool 2 is sucked into the membrane through the self-priming pump installed on the upper end of the plate and frame membrane, and the equipment is sucked out, while the impurities and macromolecular substances in the sewage are trapped on the membrane, so that the water quality can be fully and effectively purify.

[Example 3]

A kind of composite integrated MBR membrane bioreactor shown in Fig. 1, Fig. 2, present embodiment has done further improvement on the basis of embodiment 2, the interior of aerobic MBR pond 2 is filled with LINPOR biocarrier 18 to make In the aerobic MBR pool 2, there are two kinds of microorganisms in the attached phase and the suspended phase at the same time, which increases the sewage purification.

[Example 4]

A kind of composite integrated MBR membrane bioreactor shown in Fig. 1, Fig. 2, present embodiment has made further improvement on the basis of embodiment 3, the interior of aerobic MBR tank 2 is provided with aeration pipe 15; The equipment room 3 is provided with a switch door 17, a blower 11, an air gathering pipe 13, a branch pipe 12 and an automatic control system 16; One branch pipe 12, two branch pipes 12 are preferably provided in this embodiment, and each branch pipe 12 is connected to a blower 11.

The air blower 11 inputs the air into the aeration pipe 15 through the branch pipe 12 and the gas gathering pipe 13, and the aeration pipe 15 spreads the air in the aerobic MBR tank 2, and the large air bubbles rise with the water flow, and are stirred by the LINPOR biological carrier. Cutting into fine particle bubbles ensures the living environment of nitrifying bacteria, improves the utilization rate of oxygen in sewage, and also enables LINPOR biological carriers to move disorderly with the water flow. The carriers fully contact with the pollutants in the water body and remove them. Decomposition not only effectively purifies the water quality, but also prevents a series of problems such as the collapse and entanglement of the fixed packing. The automatic control system 16 can control the switch of each blower 11 to make the operation of this embodiment more convenient, and the setting of the switch door 17 also provides convenience to the staff.

[Example 5]

A kind of composite integrated MBR membrane bioreactor as shown in Fig. 1, Fig. 2, present embodiment has made further improvement on the basis of embodiment 1, aerobic MBR pond 2 is provided with reflux pump 91, reflux pump 91 is connected with a return pipe 9; the aerobic MBR pool 2 is connected with the anaerobic MBR pool 1 through the return pipe 9. When the sewage has not been completely purified after passing through the anaerobic MBR pool 1 and the aerobic MBR pool 2, the return pump 91 can lead the sewage in the aerobic MBR pool 2 into the anaerobic MBR pool 1 through the return pipe 9 for repurification , so that the water quality is fully and effectively purified.

[Example 6]

A kind of composite integrated MBR membrane bioreactor shown in Fig. 1, Fig. 2, present embodiment has done further improvement on the basis of embodiment 4, and aeration pipe 15 is anti-blocking perforated aeration pipe, can like this Effectively reduce the number of maintenance of the aeration device, saving manpower and material resources.

[Example 7]

A composite integrated MBR membrane bioreactor as shown in Figure 1 and Figure 2, this embodiment has been further improved on the basis of Embodiment 1, it is provided with aisle plate 4, and aisle is provided on the aisle plate 4 Railing 41, the walkway plate 4 is connected to the stairs 5, and the staff can enter the walkway plate 4 through the stairs 5 to maintain and overhaul the equipment, which facilitates the management of the sewage treatment staff and ensures the personal safety of the staff.

The above is the embodiment of the present utility model. The utility model is not limited to the above-mentioned embodiment, anyone should know that the structural changes made under the enlightenment of the utility model, and any technical solutions that are the same as or similar to the utility model, all fall into the protection scope of the utility model within.

Claims (7)

1. a composite integrated MBR membrane bioreactor, it comprises anaerobism MBR pond (1), aerobic MBR pond (2) and equipment room (3), it is characterized in that: the side in described anaerobism MBR pond (1) is provided with water inlet pipe (6), the opposite side of described anaerobism MBR pond (1) was provided with water pipe (7), cross water pipe (7) to be connected with the side of described aerobic MBR pond (2), the opposite side of described aerobic MBR pond (2) is provided with equipment room (3); Be provided with stereo-elastic bio-carrier support (20) in described anaerobism MBR pond (1), stereo-elastic bio-carrier support (20) be hung with stereo-elastic bio-carrier (19); Described aerobic MBR pond (2) is provided with rising pipe (8).

2. a kind of composite integrated MBR membrane bioreactor according to claim 1, it is characterized in that: described aerobic MBR pond (2) inside is provided with multiple sheet frame film (10), the upper end that each described sheet frame film (10) is inner is all provided with vacuum primingpump, and vacuum primingpump is connected with rising pipe (8) by drinking-water pipe (81).

3. a kind of composite integrated MBR membrane bioreactor according to claim 2, is characterized in that: the inside of described aerobic MBR pond (2) is filled with LINPOR bio-carrier (18).

4. a kind of composite integrated MBR membrane bioreactor according to claim 3, is characterized in that: the inside of described aerobic MBR pond (2) is provided with aeration tube (15); Described equipment room (3) is provided with switch gate (17), gas blower (11), gather qi together pipe (13), arm (12) and automatic control system (16); Described aeration tube (15) is connected with gather qi together pipe (13) by inlet pipe (14), and described gather qi together pipe (13) is connected with many arms (12), and every root arm (12) all connects a gas blower (11).

5. a kind of composite integrated MBR membrane bioreactor according to claim 1, is characterized in that: described aerobic MBR pond (2) inside is provided with reflux pump (91), and reflux pump (91) is connected with return line (9); Described aerobic MBR pond (2) is connected with anaerobism MBR pond (1) by return line (9).

6. a kind of composite integrated MBR membrane bioreactor according to claim 4, is characterized in that: described aeration tube (15) is anti-blocking boring aeration pipe.

7. a kind of composite integrated MBR membrane bioreactor according to claim 1, it is characterized in that: it is provided with walkway board (4), walkway board (4) is provided with aisle railing (41), and described walkway board (4) connects stair (5).