CN217202420U - TMBR sewage treatment system based on MABR and MBR - Google Patents
TMBR sewage treatment system based on MABR and MBR Download PDFInfo
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- CN217202420U CN217202420U CN202122781035.1U CN202122781035U CN217202420U CN 217202420 U CN217202420 U CN 217202420U CN 202122781035 U CN202122781035 U CN 202122781035U CN 217202420 U CN217202420 U CN 217202420U
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- 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 title claims abstract description 104
- 239000010865 sewage Substances 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 118
- 239000012528 membrane Substances 0.000 claims abstract description 80
- 238000005273 aeration Methods 0.000 claims abstract description 50
- 239000000945 filler Substances 0.000 claims abstract description 28
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000011001 backwashing Methods 0.000 claims description 39
- 239000007788 liquid Substances 0.000 claims description 34
- 238000004519 manufacturing process Methods 0.000 claims description 29
- 239000002253 acid Substances 0.000 claims description 22
- 239000003513 alkali Substances 0.000 claims description 22
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 17
- 238000005265 energy consumption Methods 0.000 abstract description 12
- 230000008901 benefit Effects 0.000 abstract description 7
- 230000002349 favourable effect Effects 0.000 abstract description 2
- -1 equalizing basin Chemical compound 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 13
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 11
- 229910052698 phosphorus Inorganic materials 0.000 description 11
- 239000011574 phosphorus Substances 0.000 description 11
- 238000010992 reflux Methods 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- 238000005201 scrubbing Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000005708 Sodium hypochlorite Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 230000001546 nitrifying effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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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)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a TMBR sewage treatment system based on MABR and MBR, including equalizing basin, reactor and air supply module, the top of equalizing basin is provided with the grid, the reactor includes MABR pond, anaerobism pond, MBR pond and clean water basin that communicate in proper order, be provided with MABR membrane module and MBR membrane module in MABR pond and the MBR pond respectively, throw in the MBR pond and be added MBBR filler; the adjusting tank is communicated with the reactor through a water inlet assembly, an aeration device is arranged at the bottom of the MBR tank, the air source assembly comprises an air source and an air bag, and the air bag is communicated with the MABR membrane assembly and the aeration device through a first aeration branch pipe and a second aeration branch pipe respectively. The TMBR sewage treatment system based on the MABR and the MBR has the advantages of good denitrification and dephosphorization effect, high efficiency, low occupied area and convenience in operation, and is favorable for saving operation energy consumption.
Description
Technical Field
The utility model relates to a sewage treatment technical field, concretely relates to TMBR sewage treatment system based on MABR and MBR.
Background
Although the traditional activated sludge process has higher nitrogen and phosphorus removal efficiency in domestic sewage treatment, the traditional A2O process can not meet the relevant requirements gradually along with the improvement of water quality discharge standard and the related upgrading and upgrading transformation, and has the defect of large occupied area.
The application of the MBR membrane technology brings great development to the field of sewage treatment, has the advantages of stable effluent quality, small occupied area, no need of a secondary sedimentation tank, simple and convenient operation and the like, brings great environmental and economic benefits to human beings, and particularly has wide application prospect along with gradual maturity of the membrane technology and upgrading and transformation of treatment plants in recent years. But has the defects of high aeration energy consumption, easy pollution of the membrane and the like.
The MABR technology is a bubble-free aeration technology, degrades pollutants by utilizing a biological membrane on the surface of an aeration membrane, has high oxygen utilization rate, saves energy consumption, can realize synchronous nitrification and denitrification, has good denitrification effect and poor total phosphorus treatment effect.
Therefore, it is necessary to develop a sewage treatment system with good treatment effect, small floor space and simple operation by combining the MABR process and the MBR process.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to overcome the not enough of operation energy consumption height, nitrogen and phosphorus removal efficiency is not good, area is big among the traditional sewage treatment plant, provide a TMBR sewage treatment system based on MABR and MBR, make it have that nitrogen and phosphorus removal is effectual, efficient, is favorable to practicing thrift the operation energy consumption, and area is little, convenient operation's advantage.
The utility model discloses an above-mentioned problem is solved to following technical means: a TMBR sewage treatment system based on an MABR and an MBR comprises an adjusting tank, a reactor and a gas source assembly, wherein a grid is arranged at the top of the adjusting tank, the reactor comprises an MABR tank, an anaerobic tank, an MBR tank and a clean water tank which are sequentially communicated, an MABR membrane assembly and an MBR membrane assembly are respectively arranged in the MABR tank and the MBR tank, and an MBBR filler is added into the MBR tank; the adjusting tank is communicated with the reactor through a water inlet assembly, an aeration device is arranged at the bottom of the MBR tank, the air source assembly comprises an air source and an air bag, and the air bag is communicated with the MABR membrane assembly and the aeration device through a first aeration branch pipe and a second aeration branch pipe respectively.
Further, the water inlet assembly comprises a lifting pump arranged in the regulating reservoir, a water inlet pipe communicated with the water outlet end of the lifting pump and a water inlet main valve arranged on the water inlet pipe, the water inlet pipe is communicated with the MABR reservoir and the anaerobic reservoir through an MABR reservoir water inlet branch pipe and an anaerobic reservoir water inlet branch pipe respectively, and an MABR reservoir water inlet valve and an anaerobic reservoir water inlet valve are arranged on the MABR reservoir water inlet branch pipe and the anaerobic reservoir water inlet branch pipe respectively.
Further, a first interception net is arranged at a water inlet of the MBR tank.
Further, through mixed liquid back flow intercommunication between MBR pond and the MABR pond, the feed liquor end of mixed liquid back flow is located MBR bottom of the pool portion, and play liquid end is located MABR top of the pool portion, and the feed liquor end of mixed liquid back flow is provided with the second interception net, is provided with the reflux valve on the mixed liquid back flow, the air bag is through third aeration branch pipe and gas lift pipe and mixed liquid back flow intercommunication.
Further, the water production end of the MBR membrane module is communicated with a clean water tank through a water production pipe, and a self-priming pump and a water production valve are arranged on the water production pipe.
Furthermore, one side of the water production pipe is provided with a backwashing pipe in parallel, the backwashing pipe is provided with a backwashing valve and a backwashing pump, and the water production pipe further comprises an alkali dosing device and an acid dosing device which are communicated with the backwashing pipe, and the alkali dosing device and the acid dosing device are respectively matched with an alkali dosing pump and an acid dosing pump.
Further, an ultraviolet sterilizer is arranged at the water outlet end of the clean water tank.
Further, the air source, the air bag, the self-sucking pump, the backwashing pump, the alkali dosing device, the alkali dosing pump, the acid dosing device and the acid dosing pump are arranged in a centralized manner through a device room.
The utility model has the advantages that: the application is based on TMBR sewage treatment system of MABR and MBR, and the collection is invertd A2O, MABR pond, MBBR and is packed, the MBR pond is as an organic whole, has that the treatment effect is good, and nitrogen and phosphorus removal is good, area is little advantage. The method is characterized in that an inverted A2O process, an MABR process, an MBBR process and an MBR process are combined to improve the nitrogen and phosphorus removal effect, firstly, the inverted A2O process is adopted, denitrification is performed in a preposed mode, a carbon source is preferentially obtained, the nitrogen removal effect is improved, the phosphorus removal efficiency is improved by utilizing the hunger effect and the colony effect, meanwhile, the aeration section adopts the MABR process to perform bubble-free aeration, the energy consumption is saved, meanwhile, synchronous nitrification and denitrification are realized, the nitrogen removal effect is further improved, and in addition, the denitrification and phosphorus removal can be realized under the reflux action of a nitrified liquid; good oxygen pond and MBR pond unite two into one, and area is little to MBBR filler is thrown to the membrane cisterna, improves the treatment effect, and MBBR filler free motion under the aeration circumstances plays certain effect of scrubbing to MBR membrane surface adnexed pollutant simultaneously, reduces MBR membrane pollution and backwash frequency, and then reduces the backwash energy consumption. The sludge and the nitrifying liquid are refluxed by gas stripping, so that energy consumption is saved.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples.
FIG. 1 is the process flow diagram of the TMBR sewage treatment system based on the MABR and the MBR of the utility model.
Reference numerals are as follows: 1. a grid; 2. a regulating tank; 3. a lift pump; 4. a main water inlet valve; 5. an MABR sump inlet valve; 6. a water inlet valve of the anaerobic tank; 7. a reflux valve; 8. a first interception net; 9. an MBR tank; 10. MBBR filler; 11. an MABR pool; 12. an MABR membrane module; 13. an anaerobic tank; 14. an aeration device; 15. an MBR membrane module; 16. a sludge discharge pipe; 17. a second interception net; 18. a clean water tank; 19. a gas stripping tube; 20. a mixed liquid return pipe; 21. a self-priming pump; 22. a backwash valve; 23. a backwash pump; 24. a water production valve; 25. an alkali dosing pump; 26. an alkali dosing device; 27. an acid dosing pump; 28. an acid dosing device; 29. an ultraviolet sterilizer; 30. A gas source; 31. air bags; 32. a first aeration branch pipe; 33. a second aeration branch pipe; 34. and a third aeration branch pipe.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples. The features and advantages of the present invention will become more apparent from the description. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them.
As shown in fig. 1, the MABR and MBR-based TMBR sewage treatment system of the present embodiment includes an adjusting tank 2, a reactor, and a gas source assembly, wherein a grid 1 is disposed at the top of the adjusting tank, the reactor includes an MABR tank 11, an anaerobic tank 13, an MBR tank 9, and a clean water tank 18, which are sequentially connected, an MABR membrane assembly 12 and an MBR membrane assembly 15 are respectively disposed in the MABR tank and the MBR tank, and an MBBR filler 10 is added into the MBR tank; the adjusting tank is communicated with the reactor through a water inlet assembly, the bottom of the MBR tank is provided with an aeration device 14, the air source assembly comprises an air source 30 and an air bag 31, and the air bag is communicated with the MABR membrane assembly and the aeration device through a first aeration branch pipe 32 and a second aeration branch pipe 33 respectively.
The grid 1 is used to intercept suspended matter, reduce subsequent impact load and prevent pipe blockage. The MABR tank and the anaerobic tank are separated through the baffle, the bottoms of the MABR tank and the anaerobic tank are communicated, wastewater enters the anaerobic tank from the MABR tank, and the MABR membrane component is flushed to a certain extent by utilizing the water inflow velocity, so that the blocking of the MABR membrane component is prevented. The MABR membrane component comprises an MABR membrane, a membrane frame, an air inlet pipe and the like. The MABR membrane material is a hydrophobic breathable membrane, and can only pass gas, but cannot pass water, and the gas is aerated from the inside of the MABR membrane to the outside of the MABR membrane. The MABR membrane is wound on the hollow cylinder of the membrane frame in a rotating manner. The MABR membranes are separated by convex point structural plates, so that sewage can pass through the MABR membranes conveniently and the biological membranes can grow conveniently; the MABR membrane is internally provided with a rhombic pore plate net structure, so that the MABR membrane is supported, and gas circulation is facilitated. And the air inlet pipe of the MABR membrane is communicated with the first aeration branch pipe.
The MABR tank replaces a traditional anoxic tank and is arranged in front, so that a denitrification system preferentially obtains a carbon source, the denitrification treatment efficiency is improved, and meanwhile, a bubble-free aeration technology is adopted in the MABR tank, so that a biological membrane growing on the surface of the MABR aeration membrane can realize oxygen gradient, and thus synchronous nitrification and denitrification are realized, and pollutants are removed.
The effluent of the anaerobic tank enters the MBR tank through self-flowing, an MBR membrane module is arranged in the MBR tank, MBBR filler is added for increasing biomass and improving pollutant removal effect, and meanwhile, the MBBR filler has certain collision scrubbing effect on the MBR membrane module in the aeration flow pushing and moving process, so that the backwashing frequency of the MBR membrane module is reduced.
The filling rate of the filler is 20% -50%, the size of the filler is 10-30 mm, the size of the filler is larger than the size of the small holes of the intercepting net, blockage is prevented, the filler is made of polyurethane, PE and the like, and the preferred filler is made of PE.
The aeration device adopts one of perforated pipe aeration, cyclone aerator and nozzle aeration, the aeration device is used for aerating the MBR tank, air scrubbing is carried out on the MBR membrane component, and meanwhile, the MBR aeration residual gas is used for providing required oxygen for the biological membrane grown by the MBBR filler, so that the gas utilization rate is improved, and the aeration energy consumption is reduced. The air source is one of an air pump, a vortex fan, a rotary fan, a centrifugal fan and a magnetic suspension fan.
The MBR membrane component comprises an MBR membrane, a membrane frame, a water production pipe and the like. The MBR membrane is one of a mesoporous fiber membrane and a flat membrane, and is preferably a mesoporous fiber membrane.
The water inlet assembly comprises a lifting pump 3 arranged in the regulating reservoir, a water inlet pipe communicated with the water outlet end of the lifting pump and a main water inlet valve 4 arranged on the water inlet pipe, the water inlet pipe is communicated with the MABR tank and the anaerobic tank through an MABR tank water inlet branch pipe and an anaerobic tank water inlet branch pipe respectively, and an MABR tank water inlet valve 5 and an anaerobic tank water inlet valve 6 are arranged on the MABR tank water inlet branch pipe and the anaerobic tank water inlet branch pipe respectively. The water inlet proportion of the MABR tank is 50-70%, the water inlet proportion of the anaerobic tank is 50-30%, and the water inflow is cooperatively regulated through a water inlet valve of the MABR tank and a water inlet valve of the anaerobic tank.
And a first interception net 8 is arranged at the water inlet of the MBR tank. Preventing the membrane tank filler from escaping into the anaerobic tank. The interception net is in a rectangular or round structure, small holes are formed in the interception net, and the size of each small hole is 5-20mm smaller than that of the filler.
Through mixed liquid back flow 20 intercommunication between MBR pond and the MABR pond, the feed liquor end of mixed liquid back flow is located MBR bottom of the pool portion, and play liquid end is located MABR top of the pool portion, and the feed liquor end of mixed liquid back flow is provided with second interception net 17 and is provided with return valve 7 on the mixed liquid back flow, the air pocket realizes the air stripping backward flow through third aeration branch pipe 34 and gas lift pipe 19 and mixed liquid back flow intercommunication.
Mud backward flow unites two into one with the liquid backward flow of nitrifying, and the mixed reflux adopts the air stripping backward flow, practices thrift the energy consumption, and mixed liquid back flow one end of intaking is located MBR bottom of the pool, and the outside sets up the second interception net and separates, prevents that MBBR from filling material backward flow to MABR pond, and mixed liquid back flow play water one end sets up at MABR top of the pool, can play with certain impact stirring effect to the MABR pond. The second interception net and the first interception net are of the same structure and are of rectangular, circular and the like, small holes are formed in the interception nets, and the size of each small hole is 5-20mm smaller than that of the filler. The mixed liquid return pipe is provided with a return valve for adjusting the return flow, and the return ratio is 0-400%. Meanwhile, when the second interception net at the water inlet of the mixed liquid return pipe is blocked by the filler carelessly, the return valve is closed, and the gas in the gas stripping pipe can be used for cleaning the interception net, so that the blocked filler falls off.
The water production end of the MBR membrane module is communicated with a clean water tank through a water production pipe, and a self-priming pump 21 and a water production valve 24 are arranged on the water production pipe.
The device comprises a water production pipe, a backwashing pipe, an alkali dosing device 26 and an acid dosing device 28, wherein the backwashing pipe is arranged on one side of the water production pipe in parallel, the backwashing pipe is provided with a backwashing valve 22 and a backwashing pump 23, the alkali dosing device and the acid dosing device are communicated with the backwashing pipe, and the alkali dosing device and the acid dosing device are respectively matched with an alkali dosing pump 25 and an acid dosing pump 27.
The self-priming pump is matched with the water production valve for use, and the backwashing pump is matched with the backwashing valve for use. When water is produced, the self-priming pump and the water production valve are opened, the backwashing pump and the backwashing valve are closed, and clean water flows into the clean water tank through the water production pipe; during backwashing, a backwashing pump and a backwashing valve are opened, a self-priming pump and a water production valve are closed, and backwashing water is used for backwashing the MBR membrane component; water production and backwashing are carried out intermittently.
And backwashing of the MBR membrane comprises water washing and chemical cleaning, wherein acid or alkali is required to be added during the chemical cleaning. The acid is citric acid, and the alkali is sodium hypochlorite or a mixed solution of sodium hypochlorite and sodium hydroxide. The acid-base adding position is arranged in front of the backwashing pump, and the acid-base adding dosage is controlled by an acid adding pump and an alkali adding pump respectively.
The air source is connected with each aeration branch pipe through an air bag, and the air bag plays roles of adjusting air flow, stabilizing pressure and the like on aeration. The aeration branch pipes are all provided with manual valve control to adjust aeration quantity.
The material of the reactor shell is one of carbon steel, weathering resistant steel, stainless steel, glass fiber reinforced plastic, PE, PP and the like, and carbon steel is preferred.
The water outlet end of the clean water tank is provided with an ultraviolet sterilizer 29. And the effluent of the clean water tank is disinfected by an ultraviolet disinfector and then discharged after reaching the standard. The uv disinfector is preferably an over-flow uv disinfector.
The gas source, the gas bag, the self-priming pump, the backwashing pump, the alkali dosing device, the alkali dosing pump, the acid dosing device and the acid dosing pump are arranged in a centralized manner through the equipment room.
During specific work, waste water firstly enters the regulating tank 2 after intercepting floating objects through the grating 1, then enters the reactor main body through the lifting pump 3 along the water inlet pipe and the water inlet main valve 4, and then respectively enters the MABR tank 11 and the anaerobic tank 13 through the MABR tank water inlet valve 5 and the anaerobic tank water inlet valve 6, wherein the water inlet ratio is that the MABR tank 11: the anaerobic tank 13 is 7: 3; the MABR tank 11 and the anaerobic tank 13 are separated by a baffle plate, the bottoms of the MABR tank 11 and the anaerobic tank 13 are communicated, wastewater enters the anaerobic tank 13 from the MABR tank 11, and the MABR membrane module is washed to a certain extent by using the inflow flow rate, so that the blocking of the MABR membrane module is prevented. The MABR tank 11 is provided with at least one group of MABR membrane assemblies 12, including MABR membranes, membrane frames, air inlet pipes and the like. The MABR membrane material is hydrophobic ventilated membrane, can only pass through gas, and water can't pass through, and MABR membrane module 12 is rotatory winding form submergence in the cell body, places on the frame, and the gaseous aeration outside membrane from the MABR inboard that provides through air supply 30 and first aeration branch pipe 32 makes the biomembrane of growing on MABR aeration membrane surface realize oxygen gradient through the aeration of no bubble to realize getting rid of in step and nitrify denitrification, improve denitrogenation efficiency. Salient point structural plates are arranged between the MABR membranes for separation, so that sewage can pass through the MABR membranes conveniently and the biological membranes can grow conveniently; the MABR membrane is internally provided with a rhombic pore plate net structure, so that the MABR membrane is supported, and the gas circulation is facilitated.
The effluent of the anaerobic tank 13 flows through the first interception net 8 to enter the MBR tank 9, and the first interception net plays a role in intercepting MBBR fillers 10 to prevent the MBBR fillers from escaping. An MBR membrane module 15 is arranged in the MBR tank 9, MBBR filler 10 is added for increasing biomass and improving pollutant removal effect, and meanwhile, the MBBR filler 10 has certain collision scrubbing effect on the MBR membrane module in the aeration flow impact and moving process, so that the backwashing frequency of the MBR membrane module is reduced, and the energy consumption is saved. The water fed into the MABR tank 11 is mixed with the mixed liquid returned by the mixed liquid return pipe 20 arranged in the MBR tank 9 for denitrification. The mixed liquid is refluxed by gas stripping, and the power required by the reflux is provided by the gas source 30 and the second aeration branch pipe 33, so that the energy consumption is saved. The mixed liquid reflux ratio was 200%, and the reflux ratio was controlled by the reflux valve 7 provided in the mixed liquid reflux pipe 20. The MBBR in the MBR tank 9 packs 10 percent of filling rate 30%, packs the size and is 20mm, packs the size and is greater than the aperture size of first interception net and 8 second interception nets 17, prevents to block up, packs to be the PE material. Small holes are uniformly distributed on the surfaces of the two interception nets, the aperture of each small hole is smaller than the size of the filler so as to prevent the filler from blocking the interception nets, meanwhile, when the second interception net 20 is accidentally blocked by the filler, the reflux valve 7 is closed, and the second interception net 20 can be cleaned by gas communicated with the third aeration branch pipe 34 connected with the gas source 30 so as to enable the blocked filler to fall off. And an MBR membrane module 15 in the MBR tank 9 is divided into water production and backwashing, and alternately and intermittently operates. When water is produced, the self-priming pump 21 and the water production valve 24 are opened, the backwashing pump 23 and the backwashing valve 22 are closed, and the produced water enters the clean water tank 18 through the water production pipe; during backwashing, the backwashing pump 23 and the backwashing valve 22 are opened, the self-priming pump 21 and the water production valve 24 are closed, and water enters the MBR membrane module from the clean water tank 18 for backwashing. Self priming pump 21 and product water valve 24 are supporting to be used, and backwash pump 23 and backwash valve 22 are supporting to be used, and the two do not move simultaneously, when chemical backwash, carry out the medicament through throwing and add citric acid or sodium hypochlorite and strengthen the backwash. The effluent of the clean water tank 18 is disinfected by an ultraviolet disinfector 29 and then discharged after reaching the standard. In addition, a chemical phosphorus removal dosing device is configured according to requirements, and the dosing pump automatically adds the medicine and removes the phosphorus at the middle position of the MBR membrane 9, so that the phosphorus is ensured to reach the standard and be discharged according to the discharge. The sludge is periodically discharged from the sludge discharge pipe 16.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (8)
1. The utility model provides a TMBR sewage treatment system based on MABR and MBR which characterized in that: the device comprises an adjusting tank, a reactor and a gas source assembly, wherein a grid is arranged at the top of the adjusting tank, the reactor comprises an MABR tank, an anaerobic tank, an MBR tank and a clean water tank which are sequentially communicated, MABR membrane assemblies and MBR membrane assemblies are respectively arranged in the MABR tank and the MBR tank, and MBBR filler is added into the MBR tank; the adjusting tank is communicated with the reactor through a water inlet assembly, an aeration device is arranged at the bottom of the MBR tank, the air source assembly comprises an air source and an air bag, and the air bag is communicated with the MABR membrane assembly and the aeration device through a first aeration branch pipe and a second aeration branch pipe respectively.
2. The MABR and MBR based TMBR sewage treatment system of claim 1, wherein: the water inlet assembly comprises a lifting pump arranged in the regulating reservoir, a water inlet pipe communicated with the water outlet end of the lifting pump and a water inlet main valve arranged on the water inlet pipe, the water inlet pipe is communicated with the MABR reservoir and the anaerobic reservoir through an MABR reservoir water inlet branch pipe and an anaerobic reservoir water inlet branch pipe respectively, and an MABR reservoir water inlet valve and an anaerobic reservoir water inlet valve are arranged on the MABR reservoir water inlet branch pipe and the anaerobic reservoir water inlet branch pipe respectively.
3. The MABR and MBR based TMBR sewage treatment system of claim 2, wherein: and a first interception net is arranged at the water inlet of the MBR tank.
4. The MABR and MBR based TMBR sewage treatment system of claim 3, wherein: the MBR pond and the MABR pond are communicated through a mixed liquid return pipe, the liquid inlet end of the mixed liquid return pipe is located at the bottom of the MBR pond, the liquid outlet end of the mixed liquid return pipe is located at the top of the MABR pond, the liquid inlet end of the mixed liquid return pipe is provided with a second intercepting net, the mixed liquid return pipe is provided with a return valve, and the air bag is communicated with the mixed liquid return pipe through a third aeration branch pipe and an air lifting pipe.
5. The MABR and MBR based TMBR sewage treatment system of claim 4, wherein: the water production end of the MBR membrane module is communicated with a clean water tank through a water production pipe, and a self-priming pump and a water production valve are arranged on the water production pipe.
6. The MABR and MBR based TMBR sewage treatment system of claim 5, wherein: the device comprises a water production pipe, a backwashing valve, a backwashing pump, an alkali dosing device and an acid dosing device, wherein the backwashing pipe is arranged on one side of the water production pipe in parallel, the alkali dosing device and the acid dosing device are communicated with the backwashing pipe, and the alkali dosing pump and the acid dosing pump are respectively matched with the alkali dosing device and the acid dosing device.
7. The MABR and MBR based TMBR sewage treatment system of claim 6, wherein: and an ultraviolet sterilizer is arranged at the water outlet end of the clean water tank.
8. The MABR and MBR based TMBR sewage treatment system of claim 7, wherein: the gas source, the gas bag, the self-priming pump, the backwashing pump, the alkali dosing device, the alkali dosing pump, the acid dosing device and the acid dosing pump are arranged in a centralized manner through the equipment room.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122781035.1U CN217202420U (en) | 2021-11-15 | 2021-11-15 | TMBR sewage treatment system based on MABR and MBR |
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| CN202122781035.1U CN217202420U (en) | 2021-11-15 | 2021-11-15 | TMBR sewage treatment system based on MABR and MBR |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI861955B (en) * | 2023-06-21 | 2024-11-11 | 友達宇沛永續科技股份有限公司 | Device for treating wastewater containing ammonium |
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2021
- 2021-11-15 CN CN202122781035.1U patent/CN217202420U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI861955B (en) * | 2023-06-21 | 2024-11-11 | 友達宇沛永續科技股份有限公司 | Device for treating wastewater containing ammonium |
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