CN217838497U - Synchronous nitrification and denitrification sewage treatment device based on MABR (moving aerated biofilm reactor) membrane - Google Patents
Synchronous nitrification and denitrification sewage treatment device based on MABR (moving aerated biofilm reactor) membrane Download PDFInfo
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- CN217838497U CN217838497U CN202221849064.5U CN202221849064U CN217838497U CN 217838497 U CN217838497 U CN 217838497U CN 202221849064 U CN202221849064 U CN 202221849064U CN 217838497 U CN217838497 U CN 217838497U
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- 239000012528 membrane Substances 0.000 title claims abstract description 139
- 239000010865 sewage Substances 0.000 title claims abstract description 32
- 238000011282 treatment Methods 0.000 title claims abstract description 31
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 238000004062 sedimentation Methods 0.000 claims abstract description 21
- 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 46
- 238000005273 aeration Methods 0.000 claims description 74
- 239000010802 sludge Substances 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 25
- 230000001546 nitrifying effect Effects 0.000 claims description 13
- 238000005276 aerator Methods 0.000 claims description 9
- 244000005700 microbiome Species 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 5
- 239000000969 carrier Substances 0.000 claims description 3
- 239000005416 organic matter Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000006213 oxygenation reaction Methods 0.000 abstract description 2
- 239000003814 drug Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 16
- 238000004140 cleaning Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 239000011574 phosphorus Substances 0.000 description 6
- 210000005056 cell body Anatomy 0.000 description 5
- 229940079593 drug Drugs 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000012510 hollow fiber Substances 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 238000005842 biochemical reaction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000012377 drug delivery Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 230000001706 oxygenating effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a synchronous nitrification and denitrification sewage treatment plant based on MABR membrane, it includes the grid well that feeds through in proper order along the sewage treatment direction, the equalizing basin, A level biological pond, O level biological pond, the sedimentation tank, inside disposes the MABR biochemical pond of MABR membrane module, inside disposes the MBR membrane cisterna of MBR membrane module, the delivery port of grid well and the water inlet intercommunication of equalizing basin, the delivery port of equalizing basin and the water inlet intercommunication of A level biological pond, the delivery port of A level biological pond and the water inlet intercommunication of O level biological pond, the delivery port of O level biological pond and the water inlet intercommunication of sedimentation tank, the delivery port of sedimentation tank and the water inlet intercommunication of MABR biochemical pond, the delivery port of MABR biochemical pond and the water inlet intercommunication of MBR membrane cisterna. Adopt the MABR as the integrated treatment facility of core, combine MABR biochemical pond and MBR membrane tank, realized carrying out synchronous nitrification and denitrification to the organic matter to sewage oxygenation, the anaerobism of biomembrane, facultative and aerobic layer, improved water quality of water and stability, reduced the energy consumption.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, specifically speaking relates to a synchronous nitrification and denitrification sewage treatment device based on MABR membrane.
Background
Common processes for advanced treatment of primary sludge leachate after primary treatment are biological contact oxidation process, MBR process and A 2 O process, but each of the three processes has advantages and disadvantages.
The biological contact oxidation process adopts the same aeration method as the aeration tank to provide the oxygen quantity required by the microorganisms, and has the functions of stirring and mixing, and simultaneously, the filler is added into the aeration tank for the microorganisms to adhere and grow. Its advantages are high purifying efficiency, high self-oxidizing amount of sludge, low productivity and less possessed ground area. However, the growth of the biological membrane in the process is easily influenced by BOD load, so that the filler is blocked or the effluent quality is influenced.
The MBR process utilizes external aeration to supply oxygen to the biological membrane, and the membrane separation equipment intercepts macromolecular organic matters from the activated sludge after biological reaction, thereby saving a secondary sedimentation tank and a conventional filtering unit. The method has the advantages that the process flow is simple, and the method has great diluting capability on high-concentration industrial wastewater; the aim of denitrification can be achieved by adjusting; the effluent quality is good, and the floor area is small. However, the process has high requirements on automation control, back washing and regular replacement are required, and the maintenance and management requirements are high.
A 2 The O process creates anaerobic and aerobic environments in a biological reaction tank through an anaerobic tank (A), an anoxic tank (A) and an aerobic tank (O) process facility, and effectively removes nitrogen and phosphorus. The advantages are that the device has stable denitrification and dephosphorization functions; impact load resistanceStrong, adapts to discontinuous drainage; stable treatment effect and good effluent quality. However, the process has the disadvantages of high power consumption, professional operation and high cost.
Accordingly, further developments and improvements are still needed in the art.
SUMMERY OF THE UTILITY MODEL
Aiming at various defects in the prior art, in order to solve the problems, an MABR membrane-based synchronous nitrification and denitrification sewage treatment device is provided, which combines an MABR biochemical pool and an MBR membrane pool by adopting integrated treatment equipment taking an enhanced coupling membrane biological reaction technology as a core, realizes synchronous nitrification and denitrification of organic matters by an oxygenated sewage, anaerobic and facultative aerobic layer of a biological membrane, improves the quality and stability of effluent water, and reduces energy consumption.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a synchronous nitrification denitrification sewage treatment plant based on MABR membrane, it includes along the grid well of sewage treatment direction intercommunication in proper order, the equalizing basin, A level biological pond, O level biological pond, the sedimentation tank, the inside MABR biochemical pond that disposes the MABR membrane module, the inside MBR membrane pond that disposes the MBR membrane module, the delivery port of grid well and the water inlet of equalizing basin intercommunication, the delivery port of equalizing basin and the water inlet of A level biological pond intercommunication, the delivery port of A level biological pond and the water inlet of O level biological pond intercommunication, the delivery port of O level biological pond and the water inlet of sedimentation tank intercommunication, the delivery port of sedimentation tank and the water inlet of MABR biochemical pond intercommunication, the delivery port of MABR biochemical pond and the water inlet of MBR membrane pond intercommunication.
Further, the MABR biochemical pool includes the MABR cell body, fills in the inside MABR filler of MABR cell body, arranges the MABR aeration components of bottom in the MABR cell body, sets up in the MABR cell body outside and the MABR aeration fan of being connected with MABR aeration components, and the MABR membrane module sets up a plurality of and even vertical arrangement inside the MABR cell body.
Furthermore, the MABR membrane assemblies are divided into a plurality of groups in equal number, mounting brackets are respectively arranged corresponding to the MABR membrane assemblies, the MABR membrane assemblies are correspondingly mounted on the mounting brackets, and the mounting brackets are mounted at the inner bottom of the MABR membrane biochemical tank through pipe threads.
Further, the MABR aeration components comprise an MABR aeration main pipe, MABR aeration branch pipes connected to the MABR aeration main pipe, and a plurality of first microporous aerators arranged on the MABR aeration branch pipes, the MABR aeration branch pipes are provided with a plurality of MABR aeration branch pipes and are arranged in one-to-one correspondence with the sets of MABR membrane components, the first microporous aerators are uniformly arranged in correspondence with the sets of MABR membrane components, and the like, and an air outlet of the MABR aeration fan is communicated with an air inlet of the MABR aeration main pipe.
Further, the MABR membrane module consists of a plurality of A membranes used as microorganism coupling carriers and a plurality of B membranes used for filling oxygen to the water and taking the carrier effect into consideration in a ratio of 2.
Further, the MBR membrane tank includes MBR membrane tank body, arrange the MBR aeration subassembly in the internal bottom of MBR membrane tank, set up in the external portion of MBR membrane tank and the MBR aeration fan of being connected with MBR aeration subassembly, the MBR membrane module is vertical to be arranged in the MBR membrane tank and to be located MBR aeration subassembly's upper portion, MBR aeration subassembly includes that MBR aeration is responsible for, connect the MBR aeration branch pipe on MBR aeration is responsible for, set up a plurality of second micropore aerators on MBR aeration branch pipe, MBR aeration fan's air outlet and MBR aeration are responsible for's air intake intercommunication.
Furthermore, a nitrifying liquid return pipe is arranged at a nitrifying liquid outlet of the O-level biological pond, and the nitrifying liquid outlet of the O-level biological pond is communicated with a water inlet of the A-level biological pond through the nitrifying liquid return pipe.
Further, a nitrifying liquid outlet of the MBR membrane tank is communicated with a water inlet of the A-level biological tank.
Furthermore, a sludge return pipeline is arranged at a sludge outlet of the sedimentation tank, and the sludge outlet of the sedimentation tank is communicated with a water inlet of the A-level biological tank through the sludge return pipeline.
Further, a sludge outlet of the MBR membrane tank is communicated with a water inlet of the A-level biological tank.
To sum up, the utility model discloses compare and have following beneficial effect in prior art:
(1) The sewage is pretreated by a grid well, an adjusting tank, an A-level biological tank, an O-level biological tank and a sedimentation tank which are sequentially communicated, the treated sewage enters an MABR biochemical tank with an MABR membrane component arranged inside for advanced treatment, most of COD, BOD, ammonia nitrogen and part of total nitrogen are degraded and removed under the multiple anaerobic, facultative and aerobic decomposition action of the MABR membrane component, the effluent enters an MBR membrane tank, the activated sludge and suspended matters are separated from water through the filtering and throttling action of an MBR hollow fiber membrane, the effluent is clear, the floc can adsorb partial residual organic matters in the water, the suspended matters in the water are effectively removed, the treated water is discharged by flowing, and the quality of the treated effluent meets the requirements of the pollution control Standard of municipal solid waste landfill (GB 16889).
(2) In the MABR biochemical pool, microorganisms are highly enriched on the surface of the MABR strengthened coupling biological membrane, and active microorganisms are not easy to lose. Meanwhile, the membrane has longer service life, no pollution problem, no operations such as back flushing and the like, high removal efficiency, strong water impact load resistance of the system, low power consumption, simple operation and low cost. After effluent is treated by an MBR membrane tank, the total phosphorus index of the effluent can be stabilized within 3 mg/L.
(3) The mud of the internal bottom of MBR membrane tank can flow back to the front end A level biological pond of device in, nitrify the liquid and can flow back to A level biological pond in, promote sewage treatment rate and activated sludge's concentration.
Drawings
FIG. 1 is a schematic structural diagram of a synchronous nitrification and denitrification sewage treatment device based on an MABR membrane in embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of a connection structure of an MABR biochemical tank and an MBR membrane tank in embodiment 1 of the present invention;
FIG. 3 is a plan view showing the internal layout of the connection structure of the MABR biochemical tank and the MBR membrane tank in the embodiment 1 of the present invention;
FIG. 4 is a sectional view showing the internal arrangement of the connection structure of the MABR biochemical tank and the MBR membrane tank in the embodiment 1 of the present invention;
fig. 5 is a schematic structural view of a drug adding device in embodiment 1 of the present invention;
fig. 6 is a schematic structural view of a cleaning apparatus according to embodiment 1 of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following embodiments of the present invention are combined to make clear and complete description of the technical solution of the present invention, and based on the embodiments in the present application, other similar embodiments obtained by those skilled in the art without creative efforts shall all belong to the scope of protection of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms are used for illustration and not for limitation of the present invention.
Detailed description of the preferred embodiment 1
An MABR membrane-based synchronous nitrification and denitrification sewage treatment device comprises a grating well 100, an adjusting tank 200, an A-level biological tank 310, an O-level biological tank 320, a sedimentation tank 400, an MABR biochemical tank 500 internally provided with an MABR membrane module 510, and an MBR membrane tank 600 internally provided with an MBR membrane module 610, which are sequentially communicated along a sewage treatment direction, wherein a water outlet of the grating well 100 is communicated with a water inlet of the adjusting tank 200, a water outlet of the adjusting tank 200 is communicated with a water inlet of the A-level biological tank 310, a water outlet of the A-level biological tank 310 is communicated with a water inlet of the O-level biological tank 320, a water outlet of the O-level biological tank 320 is communicated with a water inlet of the sedimentation tank 400, a water outlet of the MBR tank 400 is communicated with a water inlet of the MABR biochemical tank 500, and a water outlet of the MABR biochemical tank 500 is communicated with a water inlet of the membrane tank 600. The sewage is pretreated by a grating well 100, an adjusting tank 200, an A-level biological tank 310, an O-level biological tank 320 and a sedimentation tank 400, the treated sewage enters an MABR biochemical tank 500 internally provided with an MABR membrane component 510 for advanced treatment, most of COD, BOD, ammonia nitrogen and part of total nitrogen are degraded and removed under the multiple anaerobic, facultative and aerobic decomposition action of the MABR membrane component 510, the effluent enters an MBR membrane tank 600, the activated sludge and suspended matters are separated from water through the filtering and throttling action of an MBR hollow fiber membrane, the effluent is clear, flocs can adsorb partial residual organic matters in the water, the suspended matters in the water are effectively removed, the treated water is discharged by flowing automatically, and the quality of the treated effluent meets the requirements of the pollution control Standard (GB 16889) of a domestic refuse landfill. Wherein, the MBR membrane module 610 is an MBR hollow fiber membrane module. The MBR membrane tank 600 retains active sludge and macromolecular organic substances in biochemical reaction by using membrane separation equipment, saves a secondary sedimentation tank, improves solid-liquid separation efficiency, and improves the concentration of the active sludge. Should combine two kinds of membrane reactors, realized oxygenating sewage, the anaerobism of biomembrane, facultative and good oxygen layer carry out synchronous nitration and denitrification to the organic matter, catch activated sludge and the macromolecule organic matter in the biochemical reaction simultaneously, improved solid-liquid separation efficiency, improved dephosphorization effect. When in use, a phosphorus removing agent can be added into the MBR membrane tank 600 according to actual conditions so as to reduce the total phosphorus content of the effluent.
Specifically, the MABR biochemical tank 500 comprises an MABR tank body, MABR filler 520 filled in the MABR tank body, an MABR aeration assembly arranged at the bottom in the MABR tank body, an MABR aeration fan 540 arranged outside the MABR tank body and connected with the MABR aeration assembly, and a plurality of MABR membrane assemblies 510 are uniformly and vertically arranged in the MABR tank body.
Further, the number of the MABR membrane modules 510 is equal to that of the plurality of groups, the mounting brackets are respectively arranged corresponding to the MABR membrane modules 510, the MABR membrane modules 510 are correspondingly mounted on the mounting brackets, and the mounting brackets are mounted at the inner bottom of the MABR membrane biochemical tank through pipe threads. In this embodiment, the MABR membrane modules 510510 are vertically arranged, each MABR membrane module 510 is 2m in length and 610mm in width, and each 8 MABR membrane modules are fixed on a support 2.8m high to form a module and are mounted at the bottom end of the MABR biochemical pool 500500 through pipe threads.
Further, the MABR aeration modules comprise a MABR aeration main pipe 531, MABR aeration branch pipes 532 connected to the MABR aeration main pipe 531, and a plurality of first microporous aerators 533 arranged on the MABR aeration branch pipes 532, the MABR aeration branch pipes 532 are arranged in a plurality, each MABR aeration branch pipe 532 corresponds to each group of MABR membrane modules 510 one by one, each first microporous aerator 533 is uniformly arranged in an equal number corresponding to each group of MABR membrane modules 510, and an air outlet of the MABR aeration fan 540 is communicated with an air inlet of the MABR aeration main pipe 531. The membrane A is a bubble-free aeration membrane and is more suitable for hanging the microorganism, and the membrane B is a micro-nano aeration membrane. The MABR adopts a double-membrane structure combining an A membrane and a B membrane, realizes the oxygenation of sewage, and realizes the synchronous nitrification and denitrification of organic matters by an anaerobic layer, a facultative layer and an aerobic layer of a biological membrane.
Further, the MABR membrane module 510 is composed of a plurality of a membranes for being used as microorganism coupling carriers and a plurality of B membranes for charging oxygen to the water and taking the carrier effect into consideration in a ratio of 2. It is the utility model discloses an it is preferred, not only be limited to this, but also can adjust in a flexible way according to actual conditions's needs.
Further, the MBR membrane tank 600 comprises an MBR membrane tank 600 body, an MBR aeration component arranged at the bottom in the MBR membrane tank 600 body, an MBR aeration fan 620 arranged outside the MBR membrane tank 600 body and connected with the MBR aeration component, an MBR membrane component 610 vertically arranged in the MBR membrane tank 600 and positioned on the upper part of the MBR aeration component, the MBR aeration component comprises an MBR aeration main pipe, an MBR aeration branch pipe 631 connected to the MBR aeration main pipe, a plurality of second microporous aerators 632 arranged on the MBR aeration branch pipe 631, and an air outlet of the MBR aeration fan 620 is communicated with an air inlet of the MBR aeration main pipe through an air pipe.
Further, a nitrifying liquid return pipe is arranged at the nitrifying liquid outlet of the O-level biological pond 320, and the nitrifying liquid outlet of the O-level biological pond 320 is communicated with the water inlet of the A-level biological pond 310 through the nitrifying liquid return pipe.
Further, a nitrifying liquid outlet of the MBR membrane tank 600 is communicated with a water inlet of the A-level biological tank 310. Specifically, the utility model discloses in, MBR membrane cisterna 600's the liquid export of nitrifying is provided with first control valve through setting up first connecting tube and nitrifying liquid return line intercommunication on the first pipeline. The nitrified liquid flows back to the A-level biological tank 310 (anaerobic tank) through the MBR membrane tank 600 and then the total nitrogen is further reduced.
Further, a sludge return pipeline is arranged at a sludge outlet of the sedimentation tank 400, and the sludge outlet of the sedimentation tank 400 is communicated with a water inlet of the A-level biological tank 310 through the sludge return pipeline.
Further, a sludge outlet of the MBR membrane tank 600 is communicated with a water inlet of the A-stage biological tank 310. The sludge outlet of the MBR membrane tank 600 is communicated with a sludge return pipeline by arranging a second connecting pipeline, and a second control valve is arranged on the second connecting pipeline. Sludge at the bottom of the MBR membrane tank 600 can flow back to the A-level biological tank 310 through a second connecting pipeline and a sludge return pipeline, namely the front end of the treatment device, and tail water is discharged into a current channel.
Further, a medicament adding device is connected to the MBR membrane tank 600, and a medicament outlet of the medicament adding device is communicated with a medicament inlet of the MBR membrane tank 600. In this embodiment, the drug adding device is a PAC adding device, and the structure of the device is as shown in fig. 5, and the device includes a drug storage tank 640 and a drug delivery pipeline connected to a water outlet of the drug storage tank 640, and the drug delivery pipeline is provided with a drug flow control valve. The medicament enters the medicament storage tank 640 and enters the MBR membrane tank 600 through a medicament delivery pipeline connected to the medicament outlet of the medicament storage tank and a medicament flow control valve of the medicament delivery pipeline. Under special conditions, the phosphorus removal agent can be added by the agent adding device to reduce the total phosphorus content of the effluent.
Further, a cleaning device for cleaning the MBR membrane module 610 in the MBR membrane tank 600 is connected to the MBR membrane tank 600, and a water outlet of the cleaning device is communicated with a water inlet of the MBR membrane tank 600. The structure of the cleaning device is shown in fig. 6, and the cleaning device comprises a cleaning solution storage tank 650, a cleaning solution delivery pipe connected to a water outlet of the cleaning solution storage tank 650, and a cleaning solution flow control valve arranged on the cleaning solution delivery pipe. Cleaning liquid in the cleaning liquid storage tank 650 enters the MBR membrane tank 600 through a cleaning liquid flow control valve on the cleaning liquid delivery pipeline to clean the MBR membrane module 610.
Furthermore, fans are arranged corresponding to the adjusting tank 200 and the O-level biological tank 320, and the fans are respectively communicated with the air inlet of the adjusting tank 200 and the air inlet of the O-level biological tank 320 through air pipes.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, i.e. the present invention is intended to cover all equivalent variations and modifications within the scope of the present invention.
Claims (10)
1. The utility model provides a synchronous nitrification denitrification sewage treatment plant based on MABR membrane, its characterized in that, include the grid well that communicates in proper order along the sewage treatment direction, the equalizing basin, A level biological pond, O level biological pond, the sedimentation tank, the inside MABR biochemical pond that disposes the MABR membrane module, the inside MBR membrane tank that disposes the MBR membrane module, the delivery port of grid well and the water inlet of equalizing basin intercommunication, the delivery port of equalizing basin and the water inlet of A level biological pond intercommunication, the delivery port of A level biological pond and the water inlet of O level biological pond intercommunication, the delivery port of O level biological pond and the water inlet of sedimentation tank intercommunication, the delivery port of sedimentation tank and the water inlet of MABR biochemical pond intercommunication, the delivery port of MABR biochemical pond and the water inlet of MBR membrane tank intercommunication.
2. The MABR membrane-based synchronous nitrification-denitrification sewage treatment device according to claim 1, wherein the MABR biochemical tank comprises an MABR tank body, MABR filler filled inside the MABR tank body, an MABR aeration component arranged at the bottom inside the MABR tank body, and an MABR aeration fan arranged outside the MABR tank body and connected with the MABR aeration component, and the MABR membrane component is arranged in a plurality of and uniformly and vertically arranged inside the MABR tank body.
3. The MABR membrane-based synchronous nitrification and denitrification sewage treatment plant according to claim 2, wherein each MABR membrane module is divided into a plurality of groups in equal number, each group of MABR membrane modules is provided with a mounting bracket, each group of MABR membrane modules is correspondingly mounted on the mounting bracket, and the mounting bracket is mounted at the inner bottom of the MABR membrane biochemical tank through pipe threads.
4. The MABR membrane-based synchronous nitrification and denitrification sewage treatment device according to claim 2, wherein the MABR aeration components comprise main MABR aeration pipes, branch MABR aeration pipes connected with the main MABR aeration pipes, and a plurality of first microporous aerators arranged on the branch MABR aeration pipes, the branch MABR aeration pipes are arranged in a one-to-one correspondence manner, the first microporous aerators are uniformly arranged in correspondence to the sets of the MABR membrane components, and the air outlets of the MABR aeration fans are communicated with the air inlets of the main MABR aeration pipes.
5. The MABR membrane-based synchronous nitrification-denitrification sewage treatment plant according to any one of claims 1 to 4, wherein the MABR membrane module consists of a plurality of A membranes used as microorganism coupling carriers and a plurality of B membranes used for oxygen charging of water and taking the carrier effect into consideration in a ratio of 2.
6. The MABR membrane-based synchronous nitrification and denitrification sewage treatment device according to claim 1, wherein the MBR membrane tank comprises an MBR membrane tank body, an MBR aeration component arranged at the bottom in the MBR membrane tank body, and an MBR aeration fan arranged outside the MBR membrane tank body and connected with the MBR aeration component, wherein the MBR membrane component is vertically arranged in the MBR membrane tank and positioned on the upper part of the MBR aeration component, the MBR aeration component comprises an MBR aeration main pipe, an MBR aeration branch pipe connected to the MBR aeration main pipe, and a plurality of second microporous aerators arranged on the MBR aeration branch pipe, and an air outlet of the MBR aeration fan is communicated with an air inlet of the MBR aeration main pipe.
7. The MABR membrane-based synchronous nitrification-denitrification sewage treatment device according to claim 1, wherein a nitrified liquid return pipe is arranged at a nitrified liquid outlet of the O-level biological pond, and the nitrified liquid outlet of the O-level biological pond is communicated with a water inlet of the A-level biological pond through the nitrified liquid return pipe.
8. The MABR membrane-based synchronous nitrification and denitrification sewage treatment plant of claim 1, wherein the nitrifying liquid outlet of the MBR membrane tank is communicated with the water inlet of the class-A biological tank.
9. The MABR membrane-based synchronous nitrification-denitrification sewage treatment device according to claim 1, wherein a sludge return pipe is arranged at a sludge outlet of the sedimentation tank, and the sludge outlet of the sedimentation tank is communicated with a water inlet of the class-A biological tank through the sludge return pipe.
10. The MABR membrane-based synchronous nitrification-denitrification sewage treatment plant according to claim 1, wherein the sludge outlet of the MBR membrane tank is communicated with the water inlet of the A-stage biological tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221849064.5U CN217838497U (en) | 2022-07-18 | 2022-07-18 | Synchronous nitrification and denitrification sewage treatment device based on MABR (moving aerated biofilm reactor) membrane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221849064.5U CN217838497U (en) | 2022-07-18 | 2022-07-18 | Synchronous nitrification and denitrification sewage treatment device based on MABR (moving aerated biofilm reactor) membrane |
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