CN114230001A

CN114230001A - MOBR membrane bioreactor

Info

Publication number: CN114230001A
Application number: CN202111646009.6A
Authority: CN
Inventors: 尚瑞; 赵迪; 李丕成; 姚付江; 赵奂; 王兆霖; 李学勤; 李娜; 徐正强; 荣航; 楚海波; 赵胜南
Original assignee: Shandong Ams Environmental Co ltd
Current assignee: Shandong Ams Environmental Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-03-25

Abstract

The invention discloses an MOBR membrane bioreactor which comprises a barrel body, wherein MOBR membrane elements are uniformly arranged in the barrel body, each MOBR membrane element comprises an MBR membrane filament and an aeration membrane filament, a facultative anaerobic microbial membrane is arranged on each MBR membrane filament, an aerobic microbial membrane is arranged on each aeration membrane filament, a second plugging point is arranged at the bottom of each MBR membrane filament, a water outlet is arranged at the top of each MBR membrane filament, an air inlet is arranged at the bottom of each aeration membrane filament, a first plugging point is arranged at the top of each aeration membrane filament, and a water production collecting pipe communicated with the water outlet is arranged at the top of each MOBR membrane element. The membrane element is formed by combining the hollow fiber membrane filaments which are manufactured by a special process and the traditional MBR membrane filaments, so that a carrier can be provided for biofilm formation of the biological membrane, high-efficiency aeration of the MBR membrane can be realized, and aerobic and anaerobic reactions of a water treatment process can be realized simultaneously in a small area.

Description

MOBR membrane bioreactor

Technical Field

The invention relates to the technical field of water treatment, in particular to an MOBR (moving biofilm reactor).

Background

MBR improves the efficiency of traditional sewage treatment and optimizes the water treatment process. Wherein MBR membrane aeration rate is an important parameter in the MBR application process, and aeration not only provides the oxygen that the metabolism is necessary for activated sludge, can wash the surface of membrane moreover, avoids the pollutant deposit, slows down the pollution of membrane, therefore the MBR membrane of membrane bioreactor needs to adopt relatively great aeration rate. However, the aeration quantity influences the property of the activated sludge, the change of the property of the activated sludge influences the degree of membrane pollution, and the construction cost and the operation cost are high. Therefore, the improvement of the existing membrane material and process is urgently needed.

Disclosure of Invention

The invention aims to provide an MOBR (membrane bioreactor) to solve the problem that the MBR membrane needs to adopt relatively large aeration amount in the background technology.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides an MOBR membrane bioreactor which comprises a cylinder body, wherein MOBR membrane elements are uniformly arranged in the cylinder body, the MOBR membrane element comprises MBR membrane filaments and aeration membrane filaments, facultative anaerobic microbial membranes are arranged on the MBR membrane filaments, the aeration membrane filaments are provided with aerobic microbial membranes, the bottom of the MBR membrane filaments is provided with second plugging points, and the top of the MBR membrane wire is provided with a water outlet, the bottom of the aeration membrane wire is provided with an air inlet, the top of the aeration membrane wire is provided with a first blocking point, the top of the MOBR membrane element is provided with a water production collecting pipe communicated with a water outlet, the bottom of the MOBR membrane element is provided with an air inlet collecting pipe communicated with an air inlet, the MOBR membrane element further comprises a water production pipe and an air inlet pipe, the water production pipe is used for being communicated with a water production pipe of a water production header pipe in the MOBR membrane element, and the air inlet pipe is used for being communicated with air inlet of an air inlet header pipe of the MOBR membrane element.

Preferably, the fixing assembly comprises a connecting plate and a clamping plate positioned at the bottom of the connecting plate.

Preferably, be provided with the block subassembly on the lateral surface of barrel, and the block subassembly is including fixing two fixed boxes along barrel centrosymmetry outside the barrel, the inside of fixed box is provided with first piston, and the top of first piston is provided with the connecting rod, the top and the connecting plate of connecting rod are connected, the bottom of first piston is connected with first spring, and the other end of first spring is connected with the inner bottom end of fixed box, the upper and lower both ends of MOBR film element all are provided with the extension board.

Preferably, the block subassembly still including set up the dop in first piston both sides and set up on fixed box inner wall and with dop matched with draw-in groove, the hole has been seted up on the first piston, the inside of connecting rod is provided with the through-hole, the inside of connecting plate be provided with spout, fluting and with the connecting hole of fluting UNICOM, the entry end of connecting hole and the exit end intercommunication of through-hole, the inside sliding connection of spout has the slider, the inside of fluting is provided with the second piston, and one side of second piston is passed through the connecting rod and is connected with the slider, the bottom of slider is connected with the top of grip block.

Preferably, the top of the first piston is provided with an auxiliary block, and an arc-shaped surface is arranged on the inner side wall of the auxiliary block.

Preferably, the bottom end of the connecting rod is provided with a sealing ring, and the sealing ring is provided with a connecting hole communicated with the connecting hole.

Preferably, the clamping assembly further comprises fixed plates arranged on two sides of the fixed box, a sliding plate is connected to the bottom of each fixed plate in a sliding mode, a positioning assembly is arranged on one side of each sliding plate, and a clamping assembly is arranged on the other side of each sliding plate.

Preferably, the positioning assembly comprises a fixed cylinder arranged at the bottom of the fixed plate, a screw rod penetrating through the fixed cylinder is rotatably connected inside the fixed cylinder through threads, and one end of the screw rod is rotatably connected with the side surface of the sliding plate through a bearing.

Preferably, the joint subassembly is including fixing the sleeve on the sliding plate, and telescopic inside slip is provided with the sliding block, the one end of sliding block is connected with the second spring, and the other end and the telescopic inner wall connection of second spring, the one end that the sliding block kept away from the second spring is provided with the fixture block that extends to the sleeve outside, and is provided with the inclined plane on the fixture block.

Preferably, one side of the clamping plate is provided with a protective pad, and the protective pad is made of ethylene propylene diene monomer.

Compared with the prior art, the above one or more technical schemes have the following beneficial effects:

1. the membrane element is formed by combining the hollow fiber membrane filaments which are manufactured by a special process and the traditional MBR membrane filaments, so that a carrier can be provided for the biofilm formation of the biofilm, the high-efficiency aeration of the MBR membrane can be realized, the aerobic and anaerobic reactions of the water treatment process can be realized simultaneously in a smaller area, the solid-liquid separation can be realized while the pollutants are removed by the biological reaction, and the whole membrane bioreactor is aged into the membrane bioreactor capable of directly producing water.

2. The clamping plate in the fixing assembly can be effectively clamped on the MOBR film element through the arranged clamping assembly, so that the MOBR film element is more stable.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

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

FIG. 2 is a schematic structural view of a MOBR membrane element of the present invention;

FIG. 3 is a schematic structural view of the fixing assembly of the present invention;

FIG. 4 is a schematic view of the internal structure of the connecting plate of the present invention;

FIG. 5 is a schematic structural view of the engaging member of the present invention;

fig. 6 is a schematic structural view of a snap member in embodiment 2 of the present invention;

fig. 7 is a schematic structural view of a snap-in module in embodiment 2 of the present invention;

FIG. 8 is a schematic structural view of a membrane reaction unit according to the present invention;

in the figure:

1. a barrel; 2. a fixing assembly; 201. a connecting plate; 202. a clamping plate; 3. an intake manifold; 4. an MOBR membrane element; 5. MBR membrane filaments; 6. aerating membrane filaments; 7. a facultative anaerobic microbial membrane; 8. aerobic microbial membranes; 9. a water outlet; 10. a first plugging point; 11. a second plugging point; 12. an air inlet; 13. a water production header; 14. clamping the assembly; 15. a support plate; 16. a fixing box; 17. a connecting rod; 18. a first piston; 19. a through hole; 20. a chute; 21. grooving; 22. a second piston; 23. a slider; 24. a connecting rod; 25. connecting holes; 26. an auxiliary block; 27. a first magnet; 28. a second magnet; 29. a first spring; 30. a sliding plate; 31. a clamping assembly; 32. a positioning assembly; 33. a fixed cylinder; 34. a screw; 35. a sleeve; 36. a slider; 37. a second spring; 38. and (7) clamping blocks.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Example 1:

referring to fig. 1-5, an MOBR membrane bioreactor comprises a barrel 1, wherein the inside of the barrel 1 is uniformly provided with MOBR membrane elements 4, the MOBR membrane elements 4 comprise MBR membrane filaments 5 and aeration membrane filaments 6, facultative anaerobic microbial membranes 7 are arranged on the MBR membrane filaments 5, aerobic microbial membranes 8 are arranged on the aeration membrane filaments 6, second blocking points 11 are arranged at the bottoms of the MBR membrane filaments 5, water outlets 9 are arranged at the tops of the MBR membrane filaments 5, air inlets 12 are arranged at the bottoms of the aeration membrane filaments 6, first blocking points 10 are arranged at the tops of the aeration membrane filaments 6, water production headers 13 communicated with the water outlets 9 are arranged at the tops of the MOBR membrane elements 4, air inlet headers 3 communicated with the air inlets 12 are arranged at the bottoms of the MOBR membrane elements 4, wherein the MOBR membrane elements 4 further comprise water production pipes and air inlet pipes, the water production pipes are used for communicating with water production pipes of the water production headers in the MOBR membrane elements 4, the air inlet pipes are used for communicating air inlet of the MOBR membrane elements, the method is characterized in that hollow fiber membrane filaments (namely, aeration membrane filaments 6) which are manufactured by a wet spinning process and a special formula and can be aerated under the pressure lower than the bubble point and traditional MBR membrane filaments 5 are placed at intervals, a special cementing process is adopted, MOBR membrane elements 4 are formed according to certain rules and requirements, the membrane filaments (namely, the aeration membrane filaments 6) which can be aerated and the traditional MBR membrane filaments are placed at intervals according to certain principles when the MOBR membrane elements 4 are filled, and not only can a strict aerobic biological membrane be hung outside the aeration membrane filaments 6 to provide a carrier for the biological membrane, but also the aerobic biological membrane can be aerated from the inside, so that the required conditions of organisms are met. A facultative anaerobic microbial membrane 7 is hung outside the traditional MBR membrane filaments 5 to provide a carrier for biological attachment, and water purified by biological bacteria is discharged from the inside of the membrane filaments. Sealing and sealing the aeration membrane filaments 6 at the upper end of the MOBR membrane element 4, wherein the top of the MBR membrane filaments 5 is used as a water outlet 9; the lower end of an MOBR membrane element 4 carries out sealing and sealing treatment on MBR membrane wires 5, the bottom of an aeration membrane wire 6 is used as an aeration air inlet 12, the MOBR membrane element 4 organically combines a gas membrane technology and a biological membrane technology, according to strict calculation and practical experience, the required oxygen amount, aeration time and selection and culture of strains are accurately controlled, the reaction time and the reaction degree are reasonably controlled, a facultative anaerobic microbial membrane 7 is attached to the surface of the traditional MBR membrane wire 5, when sewage flows around the facultative anaerobic microbial membrane 7, pollutants in a water body enter the facultative anaerobic microbial membrane 7 under the actions of concentration difference driving, microbial adsorption and the like, and are utilized by facultative anaerobic microorganisms after facultative anaerobic biological metabolism and proliferation; the aerobic microbial membrane 8 is attached to the surface of the membrane wire which can be aerated, and when sewage flows around the aerobic microbial membrane 8, the sewage is utilized by aerobic microbes through the metabolism and proliferation of the aerobic microbes, so that pollutants in the water body are assimilated into microbial thallus which is fixed on the biological membrane or decomposed into inorganic metabolites, and the water body is purified.

Please refer to fig. 1 and 3, the fixing assembly 2 includes a connecting plate 201 and clamping plates 202 located at the bottom of the connecting plate 201, and a gap between every two adjacent clamping plates 202 can exactly satisfy the placement of one MOBR membrane element 4, so as to facilitate the fixed clamping of the MOBR membrane element 4.

Please refer to fig. 1, 4 and 5, a clamping assembly 14 is disposed on an outer side surface of the cylinder 1, the clamping assembly 14 includes two fixing boxes 16 symmetrically fixed on an outer side of the cylinder 1 along a center of the cylinder 1, a first piston 18 is disposed inside the fixing box 16, a connecting rod 17 is disposed on a top of the first piston 18, a top of the connecting rod 17 is connected to a connecting plate 201, a first spring 29 is connected to a bottom of the first piston 18, another end of the first spring 29 is connected to an inner bottom end of the fixing box 16, and both upper and lower ends of the MOBR 4 are provided with support plates 15, wherein a row of membrane reaction units are formed between the plurality of MOBR membrane elements 4, and in each two adjacent rows of membrane reaction units, positions of the MBR membrane filaments 5 and the aeration membrane filaments 6 inside the MOBR membrane elements 4 are opposite to each other, that is, if the MBR membrane elements 4 located in a front row are sequentially arranged by the MBR membrane filaments 5 in a front order and the aeration membrane filaments 6 in a back row, then, the inside of the next row of the MOBR membrane elements 4 is sequentially arranged by the sequence of the aeration membrane filaments 6 before and the sequence of the MBR membrane filaments 5 after, and the next row is consistent with the sequence of the previous row, so that in a certain space, the aeration membrane filaments 6 are all arranged around each MBR membrane filament 5, and the MBR membrane filaments 5 are all arranged around each aeration membrane filament 6.

Please refer to fig. 1, 4 and 5, the engaging assembly 14 further includes two engaging heads disposed on two sides of the first piston 18 and a engaging slot disposed on an inner sidewall of the fixing box 16 and engaged with the engaging heads, the first piston 18 is provided with a hole, the connecting rod 17 is provided with a through hole 19 therein, the connecting plate 201 is provided with a sliding slot 20, a slot 21 and a connecting hole 25 communicated with the slot 21 therein, an inlet end of the connecting hole 25 is communicated with an outlet end of the through hole 19, the sliding slot 20 is slidably connected with a sliding block 23 therein, the slot 21 is provided with a second piston 22 therein, one side of the second piston 22 is connected with the sliding block 23 by a connecting rod 24, a bottom of the sliding block 23 is connected with a top end of the clamping plate 202, when the connecting rod 17 descends to a certain position, the connecting rod can contact with the first piston 18 and drive the first piston 18 to descend, and the clamping plate 202 is just located in a gap between the respective MOBR elements 4, the descending of the first piston 18 can enable air in the space below the first piston 18 to be pressed into the through hole 19 through the hole and flow into the connecting hole 25 from the inside of the through hole 19, and finally enter into the inside of the groove 21 from the inside of the connecting hole 25, so that the second piston 22 in the groove 21 can drive the connecting rod 24 and the sliding block 23 to move, so that the two adjacent sliding blocks 23 can slide relatively, and further the two clamping plates 202 can move relatively, so that the clamping of the MOBR membrane elements 4 is more stable, the using effect is better, meanwhile, after the first piston 18 descends to a designated position, the clamping head can be matched with the clamping groove, and further the first piston 18 can be conveniently positioned, of course, the clamping head has certain elasticity and toughness, the clamping groove can also be pulled out, so that the fixing assembly 2 can not clamp each MOBR membrane element 4 any more.

Please refer to fig. 5, the top of the first piston 18 is provided with an auxiliary block 26, and the inner side wall of the auxiliary block 26 is provided with an arc surface, which can facilitate the connection rod 17 to be inserted into the auxiliary block 26 better, so as to avoid the connection rod 17 from sliding transversely and stably, and achieve better use effect.

Please refer to fig. 5, the bottom end of the connecting rod 17 is provided with a sealing ring, and the sealing ring is provided with a connecting hole communicated with the connecting hole, the sealing ring can facilitate the better sealing connection between the hole and the connecting hole, thereby avoiding gas leakage and having better linkage effect.

Please refer to fig. 4, a protection pad is disposed on one side of the clamping plate 202, and the protection pad is made of epdm rubber, so that the protection pad can protect the MOBR membrane element 4 and prevent the MOBR membrane element 4 from being damaged during clamping.

Example 2:

referring to fig. 6 and 7, the present embodiment is different from embodiment 1 in that: the clamping assembly 14 further comprises a fixed plate arranged on two sides of the fixed box 16, a sliding plate 30 is slidably connected to the bottom of the fixed plate, a positioning assembly 32 is arranged on one side of the sliding plate 30, a clamping assembly 31 is arranged on the other side of the sliding plate 30, the positioning assembly 32 comprises a fixed cylinder 33 arranged at the bottom of the fixed plate, a screw 34 penetrating through the fixed cylinder 33 is rotatably connected inside the fixed cylinder 33 through threads, one end of the screw 34 is rotatably connected with the side surface of the sliding plate 30 through a bearing, the sliding plate 30 can correspondingly slide by rotating the screw 34, the clamping assembly 31 comprises a sleeve 35 fixed on the sliding plate 30, a sliding block 36 is slidably arranged inside the sleeve 35, one end of the sliding block 36 is connected with a second spring 37, the other end of the second spring 37 is connected with the inner wall of the sleeve 35, and a clamping block 38 extending to the outside of the sleeve 35 is arranged at one end of the sliding block 36 far away from the second spring 37, and the fixture block 38 is provided with an inclined surface, when the first piston 18 moves from top to bottom, under the action of the inclined surface, the first piston 18 can sequentially pass through each fixture block 38, and the first piston 18 cannot rise, when the first piston 18 needs to be reset, the screw 34 can be rotated, so that the screw 34 drives the sliding plate 30 to slide, the fixture block 38 is gradually separated from the fixed box 16, and then the first piston 18 is reset under the action of the first spring 29, and the operation is simple and convenient.

Otherwise, the same procedure as in example 1 was repeated.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The MOBR membrane bioreactor comprises a barrel body (1) and is characterized in that MOBR membrane elements (4) are uniformly arranged inside the barrel body (1), the MOBR membrane elements (4) comprise MBR membrane filaments (5) and aeration membrane filaments (6), facultative anaerobic microbial membranes (7) are arranged on the MBR membrane filaments (5), aerobic microbial membranes (8) are arranged on the aeration membrane filaments (6), second plugging points (11) are arranged at the bottom of the MBR membrane filaments (5), water outlets (9) are arranged at the top of the MBR membrane filaments (5), air inlets (12) are arranged at the bottom of the aeration membrane filaments (6), first plugging points (10) are arranged at the top of the aeration membrane filaments (6), water production headers (13) communicated with the water outlets (9) are arranged at the top of the MOBR membrane elements (4), air inlets (3) communicated with the air inlets (12) are arranged at the bottom of the MOBR membrane elements (4), the MOBR membrane element (4) further comprises a water production pipe and an air inlet pipe, the water production pipe is used for being communicated with a water production header pipe in the MOBR membrane element (4), and the air inlet pipe is communicated with an air inlet header pipe of the MOBR membrane element.

2. The MOBR membrane bioreactor of claim 1, wherein: the fixing assembly (2) comprises a connecting plate (201) and a clamping plate (202) located at the bottom of the connecting plate (201).

3. The MOBR membrane bioreactor of claim 2, wherein: be provided with on the lateral surface of barrel (1) block subassembly (14), and block subassembly (14) including fixing two fixed boxes (16) along barrel (1) centrosymmetric in the barrel (1) outside, the inside of fixed box (16) is provided with first piston (18), and the top of first piston (18) is provided with connecting rod (17), the top and the connecting plate (201) of connecting rod (17) are connected, the bottom of first piston (18) is connected with first spring (29), and the other end of first spring (29) is connected with the interior bottom end of fixed box (16), the upper and lower both ends of MOBR film element (4) all are provided with extension board (15).

4. The MOBR membrane bioreactor of claim 3, wherein: block subassembly (14) still including set up the dop and the setting in first piston (18) both sides on fixed box (16) inside wall and with dop matched with draw-in groove, the hole has been seted up on first piston (18), the inside of connecting rod (17) is provided with through-hole (19), the inside of connecting plate (201) is provided with spout (20), fluting (21) and connecting hole (25) with fluting (21) UNICOM, the entry end of connecting hole (25) communicates with the exit end of through-hole (19), the inside sliding connection of spout (20) has slider (23), the inside of fluting (21) is provided with second piston (22), and one side of second piston (22) is passed through connecting rod (24) and is connected with slider (23), the bottom of slider (23) is connected with the top of grip block (202).

5. The MOBR membrane bioreactor of claim 4, wherein: an auxiliary block (26) is arranged at the top of the first piston (18), and an arc-shaped surface is arranged on the inner side wall of the auxiliary block (26).

6. The MOBR membrane bioreactor of claim 4, wherein: the bottom of connecting rod (17) is provided with the sealing washer, and is provided with the even hole that is linked together with the connecting hole on the sealing washer.

7. The MOBR membrane bioreactor of claim 3, wherein: the clamping assembly (14) further comprises fixed plates arranged on two sides of the fixed box (16), a sliding plate (30) is connected to the bottom of each fixed plate in a sliding mode, a positioning assembly (32) is arranged on one side of each sliding plate (30), and a clamping assembly (31) is arranged on the other side of each sliding plate (30).

8. The MOBR membrane bioreactor of claim 7, wherein: the positioning assembly (32) comprises a fixed cylinder (33) arranged at the bottom of the fixed plate, a screw (34) penetrating through the fixed cylinder (33) is rotatably connected inside the fixed cylinder (33) through threads, and one end of the screw (34) is rotatably connected with the side surface of the sliding plate (30) through a bearing.

9. The MOBR membrane bioreactor of claim 8, wherein: the clamping assembly (31) comprises a sleeve (35) fixed on the sliding plate (30), a sliding block (36) is arranged inside the sleeve (35) in a sliding mode, one end of the sliding block (36) is connected with a second spring (37), the other end of the second spring (37) is connected with the inner wall of the sleeve (35), a clamping block (38) extending to the outside of the sleeve (35) is arranged at one end, away from the second spring (37), of the sliding block (36), and an inclined surface is arranged on the clamping block (38).

10. The MOBR membrane bioreactor of claim 2, wherein: and a protection pad is arranged on one side of the clamping plate (202), and the protection pad is made of ethylene propylene diene monomer.