CN209989210U

CN209989210U - Sewage treatment station based on MBR flat membrane bioreactor

Info

Publication number: CN209989210U
Application number: CN201920598214.1U
Authority: CN
Inventors: 史建春
Original assignee: Yixing Lianhua Environmental Protection Co Ltd
Current assignee: Yixing Lianhua Environmental Protection Co Ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-01-24
Anticipated expiration: 2029-04-28

Abstract

The utility model discloses a sewage treatment station based on MBR flat sheet membrane bioreactor belongs to sewage treatment technical field, including the equalizing basin, the top of equalizing basin one side is provided with the grid well, stealthily dirty pump is installed to the inside bottom of equalizing basin. The utility model discloses a set up the air-blower, the air-blower is connected with and extends to the equalizing basin respectively, the oxygen deficiency pond, the air pipe of the inside bottom of MBR membrane cisterna, at sewage treatment's in-process, the air-blower sends the air that produces into the equalizing basin respectively through the air pipe, the oxygen deficiency pond, inside the MBR membrane cisterna, shift to the sewage in the oxygen in the air is forced, obtain sufficient dissolved oxygen, in addition, the wind that the air-blower produced lets in after the sewage, can make sewage carry out the disturbance, prevent that the suspended solid from sinking in the pond, strengthen the purpose of organic matter and microorganism and dissolved oxygen contact in the pond, thereby guarantee that the microorganism is under the condition that has sufficient dissolved oxygen in the pond.

Description

Sewage treatment station based on MBR flat membrane bioreactor

Technical Field

The utility model relates to a sewage treatment technical field specifically is a sewage treatment station based on dull and stereotyped membrane bioreactor of MBR.

Background

The sewage (waste water) discharged from a pollution source cannot meet the requirement of discharge standard or cannot meet the requirement of environmental capacity due to high total pollutant content or concentration, so that when the quality and the function of the water environment are reduced, the sewage (waste water) needs to be artificially and intensively treated, and the site is a sewage treatment plant which is also called a sewage treatment station.

The existing sewage treatment station usually carries out mud-water separation by a secondary sedimentation tank, but the secondary sedimentation tank has large occupied area and lower removal efficiency on suspended matters and organic matters, and the existing sewage treatment station has the defects of less dissolved oxygen content, easy sedimentation of the suspended matters in the tank and lower oxidative decomposition efficiency on the organic matters in sewage in the process of sewage treatment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems that the existing sewage treatment station usually adopts a secondary sedimentation tank to separate sludge and water, but the secondary sedimentation tank occupies a large area and has low removal efficiency on suspended matters and organic matters, the existing sewage treatment station has low dissolved oxygen content, the suspended matters easily sink in the tank and has low oxidative decomposition efficiency on the organic matters in sewage, and the sewage treatment station based on the MBR flat plate membrane bioreactor is provided.

In order to achieve the above object, the utility model provides a following technical scheme: a sewage treatment station based on an MBR flat membrane bioreactor comprises an adjusting tank, wherein a grid well is arranged at the top end of one side of the adjusting tank, a submersible sewage pump is arranged at the bottom end of the inner part of the adjusting tank, an anoxic tank is arranged at one side of the adjusting tank, which is far away from the grid well, a sewage pipe is communicated between the water outlet of the submersible sewage pump and the anoxic tank, an MBR membrane tank is arranged at one side of the anoxic tank, which is far away from the adjusting tank, a sewage pipe is communicated between the anoxic tank and the MBR membrane tank, an MBR membrane module is arranged inside the MBR membrane tank, an MBR membrane module water production pump is arranged at the top of the MBR membrane tank, the water inlet end of the MBR membrane water production pump is connected with a water pipe which extends into the MBR membrane tank and is connected with an MBR membrane module, a sludge tank is arranged at one end of the MBR membrane tank, the bottoms of the MBR membrane tank, the water outlet end of the MBR membrane water production pump is connected with a drain pipe communicated with a clean water tank, one side of the clean water tank far away from the sludge tank is provided with an air blower, the air outlet of the air blower is connected with an air pipe communicated with the inner bottom ends of the regulating tank, the anoxic tank and the MBR membrane tank respectively, and the inner bottom ends of the regulating tank, the anoxic tank and the MBR membrane tank are provided with exhaust pipes communicated with the air pipe.

Preferably, a water inlet pipe is connected to one side of the grid well, which is far away from the regulating reservoir.

Preferably, two groups of grids are arranged inside the grid well, and the two groups of grids are a coarse grid and a fine grid in sequence.

Preferably, the top of the exhaust pipe is provided with a plurality of groups of exhaust nozzles uniformly at equal intervals.

Preferably, the number of the MBR membrane modules is three, and the three groups of MBR membrane modules are uniformly distributed in the MBR membrane tank.

Preferably, the submersible sewage pump, the MBR membrane water production pump and the air blower are electrically connected with an external power supply and a controller.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages that the MBR membrane tank is arranged, the MBR membrane component is arranged in the MBR membrane tank, the membrane component replaces a secondary sedimentation tank to keep high active sludge concentration in the bioreactor, reduce the occupied area of sewage treatment facilities, and reduce the sludge amount by keeping low sludge load, so that the treatment efficiency is high, the effluent quality is good, the equipment is compact, and the occupied area is small; through setting up the air-blower, the air-blower is connected with and extends to the equalizing basin respectively, the oxygen deficiency pond, the air pipe of the inside bottom of MBR membrane cisterna, at sewage treatment's in-process, the air-blower sends the air that produces into the equalizing basin respectively through the air pipe, the oxygen deficiency pond, inside the MBR membrane cisterna, shift to in the sewage by force the oxygen in the air, obtain sufficient dissolved oxygen, in addition, the wind that the air-blower produced lets in behind sewage, can make sewage carry out the disturbance, prevent that the pond internal suspension from sinking, strengthen the purpose of organic matter and microorganism and dissolved oxygen contact in the pond, thereby guarantee that the microorganism is under the condition that has sufficient dissolved oxygen in the pond, the oxidative decomposition.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the MBR membrane tank of the present invention.

In the figure: 1. a regulating tank; 2. a grid well; 3. a submersible sewage pump; 4. an anoxic tank; 5. a sewage pipe; 6. an MBR membrane tank; 7. an MBR membrane module; 8. MBR membrane water pump; 9. a water pipe; 10. a sludge tank; 11. a sludge pipe; 12. a clean water tank; 13. a drain pipe; 14. a blower; 15. an air tube; 16. an exhaust pipe; 17. and (4) a water inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The submersible sewage pump (model: 50QW20-15-1.5), the MBR membrane water pump (model: ZWPB) and the blower (model: RB-033) provided by the utility model can be obtained by market or private ordering.

Referring to fig. 1-2, a sewage treatment station based on an MBR flat membrane bioreactor comprises an adjusting tank 1, a grid well 2 is arranged at the top end of one side of the adjusting tank 1, a submersible sewage pump 3 is arranged at the bottom end of the inside of the adjusting tank 1, an anoxic tank 4 is arranged at one side of the adjusting tank 1 far away from the grid well 2, a sewage pipe 5 is communicated between the water outlet of the submersible sewage pump 3 and the anoxic tank 4, an MBR membrane tank 6 is arranged at one side of the anoxic tank 4 far away from the adjusting tank 1, the sewage pipe 5 is communicated between the anoxic tank 4 and the MBR membrane tank 6, an MBR membrane module 7 is arranged inside the MBR membrane tank 6, an MBR membrane water pump 8 is arranged at the top of the MBR membrane tank 6, the water inlet end of the MBR membrane water pump 8 is connected with a water pipe 9 extending into the MBR membrane tank 6 and connected with the MBR membrane module 7, a sludge tank 10 is arranged at one end of the MBR membrane tank 6, sludge pipes 11 communicated, one side of sludge impoundment 10 is provided with clean water basin 12, the play water end of MBR membrane product water pump 8 is connected with the drain pipe 13 that is linked together with clean water basin 12, clean water basin 12 is kept away from one side of sludge impoundment 10 and is installed air-blower 14, the air outlet of air-blower 14 is connected with respectively with equalizing basin 1, oxygen deficiency pond 4, the inside air pipe 15 that the bottom is linked together in MBR membrane cisterna 6, the inside bottom of equalizing basin 1, oxygen deficiency pond 4, MBR membrane cisterna 6 all is provided with the blast pipe 16 that is linked together.

The utility model discloses a set up

MBR membrane cisterna

6, 6 inside MBR membrane module 7 that are provided with of MBR membrane cisterna to the membrane module replaces two heavy ponds to keep high activated sludge concentration to reduce sewage treatment facility area in bioreactor, and reduces the sludge amount through keeping low mud load, and the treatment effeciency is high, go out that water quality of water is good, equipment is compact, area is little.

Please refer to fig. 1, one side of the grid well 2 away from the adjusting tank 1 is connected with a water inlet pipe 17, the utility model discloses a be provided with the water inlet pipe 17 in one side of the grid well 2, the accessible water inlet pipe 17 lets in sewage to the grid well 2 to handle sewage.

Please refer to fig. 1 emphatically, the inside of grid well 2 is provided with two sets of grids, and two sets of grids are thick grid and thin grid in proper order, the utility model discloses a set gradually thick grid and two sets of grids of thin grid in the inside of grid well 2, after sewage got into grid well 2, sewage was in proper order through thick grid and thin grid, can be more ideal to the filter effect of sewage.

Please refer to fig. 1 and fig. 2, the top of the exhaust pipe 16 is provided with a plurality of sets of exhaust nozzles at equal intervals, the present invention provides a plurality of sets of exhaust nozzles at the top of the exhaust pipe 16, the air blower 14 sends the generated air into the exhaust pipe 16 through the air pipe 15, and the generated air is ejected through the plurality of sets of exhaust nozzles, thereby increasing the contact area between the air and the sewage, forcing the oxygen in the air to transfer into the sewage, obtaining sufficient dissolved oxygen, and preventing the suspended matters in the tank from sinking.

Please refer to fig. 1 and fig. 2, the number of the MBR membrane modules 7 is three, and the three groups of MBR membrane modules 7 are uniformly distributed in the MBR membrane pool 6, the utility model discloses an evenly set up three groups of MBR membrane modules 7 in the inside of the MBR membrane pool 6, three groups of MBR membrane modules 7 coact, can be more ideal to the treatment effect of sewage.

Please refer to fig. 1, the submersible sewage pump 3, the MBR membrane water producing pump 8 and the air blower 14 are electrically connected to the external power source and the controller, the utility model discloses the normal work of accessible external power source for the submersible sewage pump 3, the MBR membrane water producing pump 8 and the air blower 14 provides the battery, the accessible external controller controls the working condition of the submersible sewage pump 3, the MBR membrane water producing pump 8 and the air blower 14.

The working principle is as follows: switching on a power supply, introducing sewage into the grid well 2 through a water inlet pipe 17, filtering impurities in the sewage, then introducing the sewage into the regulating tank 1 for regulation, sending the sewage in the regulating tank 1 into the anoxic tank 4 through the sewage pipe 5 for anoxic treatment under the action of the submersible sewage pump 3, then introducing the sewage into the MBR membrane tank 6 through the sewage pipe 5, treating the sewage through the MBR membrane module 7, performing solid-liquid separation to reduce the sludge content, sending sludge generated in the MBR membrane tank 6 and the anoxic tank 4 into the sludge tank 10 through the sludge pipe 11, after the sewage treatment in the MBR membrane tank 6 is finished, discharging the sewage treated by the MBR membrane module 7 into the clean water tank 12 through the drain pipe 13 for storage or directly discharging under the action of the MBR membrane water producing pump 8, and in the sewage treatment process, respectively sending generated air into the regulating tank 1 through the air pipe 15 and the exhaust pipe 16 by the air blower 14, Inside oxygen deficiency pond 4, MBR membrane cisterna 6, force the oxygen in the air to shift in the sewage, obtain sufficient dissolved oxygen, in addition, after the wind that air-blower 14 produced lets in sewage, can make sewage carry out the disturbance, prevent that the pond suspended solid from sinking, strengthen the purpose that interior organic matter of MBR membrane cisterna 6 and microorganism and dissolved oxygen contacted to guarantee that the microorganism is under the condition that has sufficient dissolved oxygen in the pond, to the oxidative decomposition effect of organic matter in the sewage.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a sewage treatment station based on dull and stereotyped membrane bioreactor of MBR, includes equalizing basin (1), its characterized in that: the sewage treatment device is characterized in that a grid well (2) is arranged at the top end of one side of the adjusting tank (1), a sewage submersible pump (3) is arranged at the bottom end of the inner part of the adjusting tank (1), an anoxic tank (4) is arranged at one side, far away from the grid well (2), of the adjusting tank (1), a sewage pipe (5) is communicated between a water outlet of the sewage submersible pump (3) and the anoxic tank (4), an MBR membrane tank (6) is arranged at one side, far away from the adjusting tank (1), of the anoxic tank (4), a sewage pipe (5) is communicated between the anoxic tank (4) and the MBR membrane tank (6), an MBR membrane module (7) is arranged in the MBR membrane tank (6), an MBR membrane water production pump (8) is arranged at the top of the MBR membrane tank (6), a water inlet end of the MBR membrane water production pump (8) is connected with a water pipe (9) which extends into the MBR membrane tank (6) and is connected with the membrane module (, MBR membrane cisterna (6) all are connected with sludge pipe (11) that are linked together with sludge impoundment (10) with the bottom in oxygen deficiency pond (4), one side of sludge impoundment (10) is provided with clean water basin (12), the play water end of MBR membrane product water pump (8) is connected with drain pipe (13) that are linked together with clean water basin (12), air-blower (14) are installed to one side that sludge impoundment (10) were kept away from in clean water basin (12), the air outlet of air-blower (14) is connected with air hose (15) that are linked together with equalizing basin (1), oxygen deficiency pond (4), MBR membrane cisterna (6) inside bottom respectively, the inside bottom of equalizing basin (1), oxygen deficiency pond (4), MBR membrane cisterna (6) all is provided with blast pipe (16) that are linked.

2. The MBR flat sheet membrane bioreactor-based sewage treatment station of claim 1, wherein: and one side of the grid well (2) far away from the regulating tank (1) is connected with a water inlet pipe (17).

3. The MBR flat sheet membrane bioreactor-based sewage treatment station of claim 1, wherein: two sets of grids are arranged inside the grid well (2), and the two sets of grids are a thick grid and a thin grid in sequence.

4. The MBR flat sheet membrane bioreactor-based sewage treatment station of claim 1, wherein: the top of the exhaust pipe (16) is provided with a plurality of groups of exhaust nozzles uniformly at equal intervals.

5. The MBR flat sheet membrane bioreactor-based sewage treatment station of claim 1, wherein: the number of the MBR membrane modules (7) is three, and the three groups of MBR membrane modules (7) are uniformly distributed in the MBR membrane tank (6).

6. The MBR flat sheet membrane bioreactor-based sewage treatment station of claim 1, wherein: the submersible sewage pump (3), the MBR membrane water production pump (8) and the air blower (14) are electrically connected with an external power supply and a controller.