CN213771493U - MABR-MBBR coupled loop bioreactor - Google Patents
MABR-MBBR coupled loop bioreactor Download PDFInfo
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- CN213771493U CN213771493U CN202022647657.0U CN202022647657U CN213771493U CN 213771493 U CN213771493 U CN 213771493U CN 202022647657 U CN202022647657 U CN 202022647657U CN 213771493 U CN213771493 U CN 213771493U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 72
- 239000012528 membrane Substances 0.000 claims abstract description 32
- 239000012510 hollow fiber Substances 0.000 claims abstract description 17
- 239000010802 sludge Substances 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 230000000813 microbial effect Effects 0.000 claims abstract description 4
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 claims abstract 17
- UEKDBDAWIKHROY-UHFFFAOYSA-L bis(4-bromo-2,6-ditert-butylphenoxy)-methylalumane Chemical compound [Al+2]C.CC(C)(C)C1=CC(Br)=CC(C(C)(C)C)=C1[O-].CC(C)(C)C1=CC(Br)=CC(C(C)(C)C)=C1[O-] UEKDBDAWIKHROY-UHFFFAOYSA-L 0.000 claims abstract 9
- 238000003756 stirring Methods 0.000 claims description 18
- 230000007704 transition Effects 0.000 claims description 15
- 238000012856 packing Methods 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 3
- 239000010865 sewage Substances 0.000 abstract description 34
- 244000005700 microbiome Species 0.000 abstract description 16
- 238000007789 sealing Methods 0.000 abstract description 14
- 239000000945 filler Substances 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005262 decarbonization Methods 0.000 abstract description 5
- 241000894006 Bacteria Species 0.000 abstract description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 2
- 241000108664 Nitrobacteria Species 0.000 abstract description 2
- 239000002253 acid Substances 0.000 abstract description 2
- 230000001651 autotrophic effect Effects 0.000 abstract description 2
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- 229910052739 hydrogen Inorganic materials 0.000 abstract description 2
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- 241000233866 Fungi Species 0.000 abstract 1
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- 229910052760 oxygen Inorganic materials 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 238000005273 aeration Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
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- 230000004060 metabolic process Effects 0.000 description 5
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
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Abstract
The utility model discloses an MABR-MBBR coupled loop bioreactor, which comprises an MABR reaction zone, an MBBR reaction zone and a circulating column which are communicated with each other; sealing heads are arranged on two sides of the MABR reaction area, hollow fiber membrane filaments are arranged between the sealing heads on the two sides, functional microbial communities are attached to the outer surfaces of the hollow fiber membrane filaments, and air inlet pipes and exhaust pipes are respectively arranged on the sealing heads on the two sides; MBBR fillers are filled in the MBBR reaction zone; a liquid driving device is arranged in the circulating column; the lower end of the MBBR reaction zone is provided with a sludge zone. The utility model discloses possess highly intensive fungus crowd, functional microorganisms presents the variety. The MABR biomembrane is enriched with inorganic autotrophic microorganisms such as aerobic nitrobacteria and the like, facultative floras such as denitrifying bacteria and the like, anaerobic heterotrophic microorganisms such as anaerobic methanogenic bacteria, hydrogen-producing acid-producing bacteria and the like, the MBBR biomembrane is mainly enriched with anaerobic heterotrophic microorganisms, compared with the traditional biomembrane, the two biomembranes have high activity, are not easy to fall off, have large contact area with sewage and the like, and the denitrification and decarbonization performance of the whole biochemical system is enhanced.
Description
Technical Field
The utility model relates to a sewage treatment technical field specifically is an utilize MABR-MBBR coupled system to carry out the device handled sewage.
Background
In recent years, with the rapid development of economy in China, the discharge amount of sewage in industrial and agricultural production processes is increased, wherein the nitrogen content of the sewage is greatly increased, so that large-area eutrophication of surface water bodies is caused, and serious ecological environment disasters are caused. The biomembrane method is one of the water treatment technologies commonly used in the field of biochemical treatment of sewage at the present stage in China, in recent years, the requirement of China on the quality of effluent water of a sewage treatment plant is more and more strict, and the technology and the process flow for treating nitrogen-containing sewage by the traditional biomembrane method are mature, but the capital cost and the operation cost are generally higher, the sludge yield is higher, the energy consumption is high, and the denitrification effect is difficult to further improve.
The Membrane Aeration Biomembrane Reactor (MABR) couples a novel sewage treatment technology formed by a traditional biomembrane method and an oxygen permeable membrane technology, and oxygen is supplied to the biomembrane attached to the hollow fiber membrane by utilizing a micropore or compact hydrophobic oxygen permeable hollow fiber membrane. The membrane material mainly provides a carrier for the biological membrane and supplies oxygen, and the oxygen and organic matters enter the biological membrane from two sides of the biological membrane under the drive of concentration difference, adsorption and the like to be called heterogeneous mass transfer; when the aeration operation pressure is lower than the bubble point pressure, forming tiny bubbles is called bubble-free aeration; due to the anisotropic mass transfer and the bubble-free aeration, the biological membrane attached to the outer surface of the hollow fiber membrane forms a unique biological membrane active layered structure which is divided into three layers from the side close to the membrane filaments to the side contacting with sewage, namely an aerobic layer, a facultative layer and an anaerobic layer in sequence; the method has the unique technical advantages of the MABR technology, so that the MABR technology has synchronous nitrification and denitrification capability and effectively realizes the effects of denitrification and decarbonization.
Moving-Bed Biofilm Reactor (MBBR) is coupled with an activated sludge process and a Biofilm technology to form a novel and efficient sewage treatment process. The suspended filler is added into the biofilm reactor to be used as a carrier of the biofilm, the suspended material has the density close to that of water and frequently contacts with the sewage, the microorganisms gradually grow on the surface of the suspended filler to form the biofilm, and organic matters in the sewage are degraded and removed by the microorganisms in the biofilm through metabolism.
To in recent years, nitrogen content increases by a wide margin in the earth's surface sewage, and especially high ammonia nitrogen organic waste water adopts conventional sewage treatment process to be difficult to realize the difficult problem of effective denitrogenation decarbonization, the utility model discloses a MABR-MBBR coupled circulation bioreactor, the hollow fiber membrane subassembly in MABR reaction zone is the through type in this reactor, and organic matter is adsorbed by the MABR biomembrane in the sewage, degrades, carries out synchronous nitrification denitrification, and the MBBR reaction zone is anaerobic microorganisms growth reproduction region, mainly in order to improve denitrification. When a small amount of organic matters with biological inhibition are contained in the sewage, the anaerobic layer of the MABR biofilm is in direct contact with the sewage, so that the inhibition of microorganisms on the anaerobic layer by the organic matters is large, the denitrification performance is reduced by a large margin, the MBBR biofilm can make up the defect, and the denitrification capacity can be effectively improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an MABR-MBBR manifold type circulation bioreactor can effectively improve the denitrification ability, can realize high-efficient denitrogenation decarbonization, and the reactor operation is convenient, and mud is easily adhered to, and oxygen utilization ratio is high, and advantages such as mud yield is few can be used to handle and contain high ammonia nitrogen organic waste water.
In order to achieve the above object, the utility model provides a following technical scheme: an MABR-MBBR coupled loop bioreactor comprises an MABR reaction zone, an MBBR reaction zone and a circulating column which are communicated with each other; sealing heads are arranged on two sides of the MABR reaction area, hollow fiber membrane filaments are arranged between the sealing heads on the two sides, functional microbial communities are attached to the outer surfaces of the hollow fiber membrane filaments, and the sealing heads on the two sides are respectively provided with an air inlet pipe and an exhaust pipe; the MBBR filler is filled in the MBBR reaction zone, and anaerobic flora is attached to the outer surface of the MBBR filler; a liquid driving device is arranged in the circulating column; and a sludge area is arranged at the lower end of the MBBR reaction area.
Preferably, the MBBR reaction zone is arranged at the lower part of the MABR reaction zone, and the MBBR reaction zone and the MABR reaction zone are separated by a baffle plate; the MBBR reaction area is provided with a water inlet pipe, and the MABR reaction area is provided with a water outlet pipe and a standby pipe orifice.
Preferably, the lower wall of the MBBR reaction zone is provided with a reactor base, and the lower wall of the circulating column is provided with a circulating column base.
Preferably, the MABR reaction zone is communicated with the circulating column through an upper circulating transition pipe, and the MBBR reaction zone is communicated with the circulating column through a lower circulating transition pipe.
Preferably, be equipped with the protecting against shock perforated plate between MBBR reaction zone and mud district and the lower part circulation transition pipe, the mud district is the infundibulate, and the bottom in mud district is equipped with the mud pipe.
Preferably, the liquid driving device comprises a motor, the motor is mounted on the circulating column, a motor shaft of the motor drives the axial-flow type stirring paddle, a paddle shaft fixer is arranged in the circulating column, and the axial-flow type stirring paddle penetrates through the paddle shaft fixer.
Preferably, the MBBR reaction zone is provided with a small-sized driving motor, and a motor shaft of the small-sized driving motor is provided with a small-sized stirring paddle.
Preferably, a motor shaft of the motor is connected with the axial-flow type stirring paddle through a universal joint.
Compared with the prior art, the beneficial effects of the utility model are that: (1) has highly dense flora and diverse functional microorganisms. The MABR biomembrane is enriched with inorganic autotrophic microorganisms such as aerobic nitrobacteria and the like, facultative floras such as denitrifying bacteria and the like, anaerobic heterotrophic microorganisms such as anaerobic methanogenic, hydrogen-producing and acid-producing strains and the like, the MBBR biomembrane is mainly enriched with anaerobic heterotrophic microorganisms, and compared with the traditional biomembrane, the two biomembranes have the advantages of high activity, large thickness, difficult shedding of the biomembrane, large contact area with sewage and the like, so that the denitrification and decarbonization performance of the whole biochemical system is enhanced.
(2) Bubble-free aeration, high oxygen utilization rate and low oxygen supply pressure, ensures the growth and oxygen supply of microorganisms, can avoid overhigh dissolved oxygen in sewage caused by excessive aeration, and can greatly reduce the operation cost.
(3) Avoid secondary pollution, when the reactor is used for treating sewage containing volatile organic compounds, bubble-free aeration can avoid air pollution caused by diffusion of bubbles into air.
(4) Avoiding the foaming problem of surfactants and the like.
(5) The sludge is easy to adhere to, the sludge production amount is small, and the sludge treatment cost is saved.
(6) The equipment can run intermittently, so that the energy consumption is reduced, and the efficiency of the equipment is improved.
(7) To the quality of water characteristic that contains high ammonia nitrogen sewage, the utility model discloses a stable processing technology, it is more stable to go out water quality of water, can realize sewage resourceful treatment.
(8) Low construction cost and low operation cost, and has contribution significance in the aspects of economic benefit, environmental benefit and social benefit.
Drawings
FIG. 1 is a schematic structural view of the MABR-MBBR coupled loop bioreactor of the present invention.
FIG. 2 is a schematic structural view of the MABR-MBBR coupled loop bioreactor of the present invention.
FIG. 3 is a schematic view of the head of the MABR-MBBR coupled loop bioreactor of the present invention.
FIG. 4 is a schematic view of the head of the MABR-MBBR coupled loop bioreactor of the present invention.
FIG. 5 is a schematic diagram of the MBBR packing of the MABR-MBBR coupled loop bioreactor of the present invention.
FIG. 6 is a schematic diagram of the MBBR packing of the MABR-MBBR coupled loop bioreactor of the present invention.
FIG. 7 is a schematic view of the anti-impact perforated plate of the MABR-MBBR coupled loop bioreactor of the present invention.
1-driving a motor; 2-axial flow type stirring paddle; 3-a recycle column; 4-circulating column base; 5-upper circulation transition pipe; 6-water outlet pipe; 7-sealing the end; 8-MABR reaction zone; 9-spare pipe orifice; 10-a baffle plate; 11-MBBR reaction zone; 12-MBBR filler; 13-water inlet pipe; 14-anti-impact perforated plate; 15-a sludge zone; 16-a reactor base; 17-a sludge discharge pipe; 18-a lower circulation transition duct; 19-hollow fiber membrane filaments; 20-an air inlet pipe; 21-small stirring paddle; 22-a small drive motor; 23-a universal joint; 24-an exhaust pipe; 25-silicone seal.
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.
Referring to fig. 1-7, the present invention provides a technical solution: an MABR-MBBR coupled loop bioreactor comprises an MABR reaction zone 8, an MBBR reaction zone 11 and a circulating column 3 which are communicated with each other; the two sides of the MABR reaction zone 8 are provided with end sockets 7, a hollow fiber membrane wire 19 is arranged between the end sockets 7 at the two sides, functional microbial communities are attached to the outer surface of the hollow fiber membrane wire 19, the end sockets 7 at the two sides are respectively provided with an air inlet pipe 20 and an air outlet pipe 24, and the air inlet pipe 20 and the air outlet pipe 24 are communicated with the hollow fiber membrane wire 19 to ensure that gas can act on the hollow fiber membrane wire; MBBR filler 12 is filled in MBBR reaction zone 11, and the anaerobe crowd is adhered to MBBR filler 12 surface, and MBBR filler material 12 is polyethylene column suspension filler, realizes getting rid of the metabolism of nitrogenous material in the sewage. MBBR reaction zone 11 still is equipped with small-size driving motor 22, is equipped with small-size stirring rake 21 on small-size driving motor 22's the motor shaft, stirs in MBBR reaction zone 11 through small-size stirring rake 21, makes MBBR filler 12 constantly float from top to bottom in MBBR reaction zone 11, improves the contact and the adsorption efficiency of organic matter in microorganism and the sewage that adhere to MBBR filler 12.
And a liquid driving device is arranged in the circulating column 3 to ensure the normal circulation of liquid among the MABR reaction zone 8, the MBBR reaction zone 11 and the circulating column 3. The liquid driving device comprises a motor 1, the motor 1 is installed on a circulating column 3, a motor shaft of the motor 1 drives an axial-flow type stirring paddle 2 through a universal joint 23, a paddle shaft fixer is arranged in the circulating column 3, and the axial-flow type stirring paddle 2 penetrates through the paddle shaft fixer. The paddle shaft fixer has the function of fixing the paddle rod, and prevents the shaft center instability and shaking caused by the larger rotating speed of the axial flow type stirring paddle 2. The flow of the liquid is realized by the driving effect of the stirring paddle.
The MBBR reaction zone 11 is arranged at the lower part of the MABR reaction zone 8, the MBBR reaction zone 11 and the MABR reaction zone 8 are separated by two baffle plates 10, and the baffle plates are arranged in a staggered manner, so that MBBR packing 12 is ensured not to enter the MABR reaction zone 8; an inlet pipe 13 is arranged at the MBBR reaction zone 11, and an outlet pipe 6 and a spare pipe orifice 9 are arranged at the MABR reaction zone 8 to realize the input and output of sewage.
The lower wall of the MBBR reaction zone 11 is provided with a reactor base 16, and the lower wall of the circulating column 3 is provided with a circulating column base 4, so that the overall stability of the device is ensured.
The lower extreme in MBBR reaction zone 11 is equipped with mud district 15, and mud district 15 is the infundibulate, and the bottom in mud district 15 is equipped with mud pipe 17, and the mud that produces in the MBBR reaction zone 11 will get into mud district 15 along protecting against shock perforated plate 14, and the effect in mud district 15 is for collecting the surplus sludge that produces behind the old metabolism of microorganism, conveniently carries out subsequent processing. And an anti-impact porous plate 14 is arranged between the MBBR reaction zone 11 and the sludge zone 15 and between the MBBR reaction zone and the lower circulating transition pipe 18, so that the MBBR filler 12 is prevented from flowing out of the MBBR reaction zone 11 along with liquid. Simultaneously, the impact-proof porous plate 14 is connected with the sludge zone 15 and the MBBR reaction zone 11 through rectangular flanges, and rectangular sealing parts are arranged at the joints, so that the overall sealing performance of the device is ensured. The used round and rectangular sealing elements are all made of silica gel materials, have soft characteristics, are easy to cut and install, and can be adjusted by proper thickness to screw the nut outside the silica gel sealing element, so that a long-term good sealing effect is achieved.
Sewage is input through a water inlet pipe 13, a motor 1 is started, under the plug flow action of an axial-flow stirring paddle 2, the sewage in a circulating column 3 flows upwards, enters an MABR reaction zone 8 through an upper circulating transition pipe 5, then flows downwards in the MABR reaction zone 8, enters an MBBR reaction zone 11 through a gap of a baffle plate 10, and enters the circulating column 3 through a lower circulating transition pipe 18, and at the moment, the sewage in the reactor is in a circulating flow state;
air or oxygen enters the hollow fiber membrane 19 from the air inlet pipe 20 under the operation pressure lower than the bubble point pressure, flows in the membrane cavity, and is diffused into the biological membrane attached to the outer surface of the hollow fiber membrane 19 in a micro-molecular state through micro pores of the membrane under the driving of the operation oxygen supply pressure, and gas which does not penetrate the membrane is discharged from the air outlet pipe 24; organic matters in the sewage are transferred into the biological membrane from the outer layer of the biological membrane under the drive of concentration difference; under the metabolism of microbe colony in biomembrane, nitrogen, carbon, etc. in sewage are eliminated; nitrogenous substances in the sewage are removed through the metabolism of anaerobic flora attached to the outer surface of the MBBR packing 12.
The circulating column 3 enables the sludge and the sewage in the MABR reaction zone 8 and the MBBR reaction zone 11 to be uniformly mixed and circulated, presents a circulating state, improves the mass transfer effect of microorganisms and organic matters in the sewage, and meets the hydraulic disturbance of each reaction zone.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An MABR-MBBR coupled loop bioreactor, which is characterized in that: comprises an MABR reaction zone (8), an MBBR reaction zone (11) and a circulating column (3) which are communicated with each other; seal heads (7) are arranged on two sides of the MABR reaction area (8), hollow fiber membrane filaments (19) are arranged between the seal heads (7) on the two sides, functional microbial communities are attached to the outer surfaces of the hollow fiber membrane filaments (19), and an air inlet pipe (20) and an air outlet pipe (24) are respectively arranged on the seal heads (7) on the two sides; the MBBR packing (12) is filled in the MBBR reaction zone (11), and anaerobic flora is attached to the outer surface of the MBBR packing (12); a liquid driving device is arranged in the circulating column (3); and a sludge area (15) is arranged at the lower end of the MBBR reaction area (11).
2. The MABR-MBBR coupled loop bioreactor of claim 1, wherein: the MBBR reaction zone (11) is arranged at the lower part of the MABR reaction zone (8), and the MBBR reaction zone (11) is separated from the MABR reaction zone (8) by a baffle plate (10); an inlet pipe (13) is arranged at the MBBR reaction zone (11), and an outlet pipe (6) and a spare pipe orifice (9) are arranged at the MABR reaction zone (8).
3. The MABR-MBBR coupled loop bioreactor of claim 1, wherein: the lower wall of the MBBR reaction zone (11) is provided with a reactor base (16), and the lower wall of the circulating column (3) is provided with a circulating column base (4).
4. The MABR-MBBR coupled loop bioreactor of claim 1, wherein: the MABR reaction zone (8) is communicated with the circulating column (3) through an upper circulating transition pipe (5), and the MBBR reaction zone (11) is communicated with the circulating column (3) through a lower circulating transition pipe (18).
5. The MABR-MBBR coupled loop bioreactor of claim 4, wherein: be equipped with between MBBR reaction zone (11) and mud district (15) and lower part circulation transition pipe (18) protecting against shock porous plate (14), mud district (15) are the infundibulate, and the bottom in mud district (15) is equipped with mud pipe (17).
6. The MABR-MBBR coupled loop bioreactor of claim 1, wherein: the liquid driving device comprises a motor (1), the motor (1) is installed on a circulating column (3), a motor shaft of the motor (1) drives an axial-flow type stirring paddle (2), a paddle shaft fixer is arranged in the circulating column (3), and the axial-flow type stirring paddle (2) penetrates through the paddle shaft fixer.
7. The MABR-MBBR coupled loop bioreactor of claim 1, wherein: the MBBR reaction zone (11) is provided with a small-sized driving motor (22), and a motor shaft of the small-sized driving motor (22) is provided with a small-sized stirring paddle (21).
8. The MABR-MBBR coupled loop bioreactor of claim 6, wherein: the motor shaft of the motor (1) is connected with the axial-flow type stirring paddle (2) through a universal joint (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202022647657.0U CN213771493U (en) | 2020-11-17 | 2020-11-17 | MABR-MBBR coupled loop bioreactor |
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| CN202022647657.0U CN213771493U (en) | 2020-11-17 | 2020-11-17 | MABR-MBBR coupled loop bioreactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112358050A (en) * | 2020-11-17 | 2021-02-12 | 沈阳工业大学 | MABR-MBBR coupled loop bioreactor and sewage treatment method |
| CN114044608A (en) * | 2021-11-10 | 2022-02-15 | 泰州九润环保科技有限公司 | MABR-bio-trickling filter coupled wastewater treatment device and process |
-
2020
- 2020-11-17 CN CN202022647657.0U patent/CN213771493U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112358050A (en) * | 2020-11-17 | 2021-02-12 | 沈阳工业大学 | MABR-MBBR coupled loop bioreactor and sewage treatment method |
| CN112358050B (en) * | 2020-11-17 | 2023-12-26 | 沈阳工业大学 | MABR-MBBR coupling type circulation bioreactor and sewage treatment method |
| CN114044608A (en) * | 2021-11-10 | 2022-02-15 | 泰州九润环保科技有限公司 | MABR-bio-trickling filter coupled wastewater treatment device and process |
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