CN214400156U - Biological nitrogen and phosphorus removal device of town domestic sewage MBBR + MBR - Google Patents
Biological nitrogen and phosphorus removal device of town domestic sewage MBBR + MBR Download PDFInfo
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- CN214400156U CN214400156U CN202022783182.8U CN202022783182U CN214400156U CN 214400156 U CN214400156 U CN 214400156U CN 202022783182 U CN202022783182 U CN 202022783182U CN 214400156 U CN214400156 U CN 214400156U
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Abstract
The utility model discloses a biological nitrogen and phosphorus removal device of urban domestic sewage MBBR + MBR, which comprises a water inlet tank; the anaerobic tank is connected with the water inlet tank, and a first communication pipe is arranged on the wall of the anaerobic tank to communicate the anaerobic tank with the water inlet tank; an anoxic tank; the aerobic tank is connected with the anoxic tank, a second communicating pipe is arranged on the wall of the aerobic tank to communicate the aerobic tank with the anoxic tank, and an aeration pipe is laid at the bottom of the aerobic tank; an MBR reaction tank, wherein an MBR aeration membrane is arranged in the MBR reaction tank, and a sludge discharge pump is arranged at the bottom of the tank; the device comprises a water storage tank, wherein a water outlet pipe is arranged on the wall of the water storage tank, a valve is arranged on the water outlet pipe, microorganisms in an anaerobic pool, an anoxic pool and an aerobic pool perform nitrification and denitrification reactions to remove nitrogen and phosphorus, the anoxic pool and the aerobic pool circularly treat sewage to improve the sewage treatment efficiency, and the anoxic pool and the aerobic pool further perform nitrification and denitrification reactions in an MBR reaction pool to effectively remove nitrogen and phosphorus in the sewage.
Description
Technical Field
The utility model relates to a sewage treatment field, in particular to biological nitrogen and phosphorus removal device of town domestic sewage MBBR + MBR.
Background
The urban domestic sewage contains a large amount of solid suspended matters, soluble or colloidal dispersed organic matters capable of being chemically or biologically degraded, nitrogen-containing compounds, phosphate, potassium, sodium, heavy metal ions, fungus groups and the like. If the wastewater is discharged into a natural water body without treatment or with insufficient treatment degree, water body eutrophication and toxicity accumulation can be caused, and the ecological environment is deteriorated; toxic substances in the water enter the food chain through aquatic animals, and are harmful to human health finally.
The existing running sewage treatment plants mostly adopt the traditional sewage treatment modes, such as an activated sludge method and the like, and the treatment processes have the problems of unsatisfactory nitrogen and phosphorus removal effect and low water treatment efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a biological nitrogen and phosphorus removal device of town domestic sewage MBBR + MBR can improve sewage treatment efficiency, effectively removes nitrogen, phosphorus in the sewage.
According to the utility model discloses cities and towns domestic sewage MBBR + MBR biological nitrogen and phosphorus removal device, include: the water inlet tank is characterized in that a water inlet pipe is arranged on the tank wall of the water inlet tank;
the anaerobic tank is internally provided with an MBBR (moving bed biofilm reactor), the anaerobic tank is communicated with the water inlet tank through a first communication pipe, the bottom of the anaerobic tank is provided with a first water pump, and the first water pump is connected with a first water pipe;
the MBBR biofilm reactor is arranged in the anoxic tank, a water outlet of the first water pipe is communicated with the anoxic tank, and a second water pump is arranged at the bottom of the anoxic tank and connected with a second water pipe;
the aerobic tank is internally provided with the MBBR biofilm reactor, the aerobic tank is communicated with the anoxic tank through a second communicating pipe, a water outlet of the second water pipe is communicated with the aerobic tank, an aeration pipe is laid at the bottom of the aerobic tank, a third water pump is arranged at the bottom of the aerobic tank, and the third water pump is connected with a third water pipe;
the water outlet of the third water pipe is communicated with the MBR reaction tank, an MBR aeration membrane is arranged in the MBR reaction tank, a water conveying pipe is arranged in the MBR reaction tank, the water inlet end of the water conveying pipe is communicated with the MBR reaction tank, a self-priming pump is arranged in the middle section of the water conveying pipe, a sludge discharge pump is arranged at the bottom of the MBR reaction tank, and the sludge discharge pump is connected with a sludge discharge pipe;
the cistern with the play water end intercommunication of raceway, the cistern is equipped with the outlet pipe, be equipped with the valve on the outlet pipe.
According to the utility model discloses cities and towns domestic sewage MBBR + MBR biological nitrogen and phosphorus removal device has following technological effect at least: the microorganisms in the anaerobic, anoxic and aerobic tanks perform nitration and denitrification reactions to remove nitrogen and phosphorus, the anoxic tank and the aerobic tank circularly treat the sewage to improve the sewage treatment efficiency, and the MBR reaction tank further performs nitration and denitrification reactions to effectively remove nitrogen and phosphorus in the sewage.
In some embodiments of the present invention, the MBBR biofilm reactor comprises a roll-type substrate, the roll-type substrate is formed by rolling an external-to-internal bio-carrier and an interlayer filler, and the bio-carrier is provided with a plurality of through holes; a binding device fixed along a circumferential direction of the rolled substrate to bind the rolled substrate; the impeller device is arranged at two ends of the rolled base body and fixedly connected with the rolled base body so as to drive the rolled base body to rotate.
In some embodiments of the present invention, the impeller device includes a fixed disk and a plurality of blades, the fixed disk is in a circular ring shape, the blades wind the axis of the fixed disk is evenly arranged, and with the fixed disk fixed connection.
In some embodiments of the present invention, the MBR aeration membrane comprises a rolled MBR membrane body and an outlet pipe, the rolled MBR membrane body comprises a central inlet pipe and a biofilm group rolled on the inlet pipe; the pipe body of the air inlet pipe is provided with an air outlet structure; the biological membrane group comprises an oxygen-permeable hydrophobic membrane bag and an aeration filler from outside to inside, the oxygen-permeable hydrophobic membrane bag is of a bag type structure with three sealed sides and an opening at one side, the opening of the oxygen-permeable hydrophobic membrane bag is communicated with the air outlet structure of the air inlet pipe, and a gas transmission screen is placed in the oxygen-permeable hydrophobic membrane bag; the aeration filler is a flat plate type filler, and an aeration structure is arranged on the flat plate; the air outlet pipe is arranged on the outer side of the roll-type MBR membrane body and is communicated with the oxygen-permeable hydrophobic membrane bag.
In some embodiments of the present invention, the aeration packing is cylindrical convex polypropylene flat packing or flat packing with loose net structure or flat packing with corrugated structure.
The utility model discloses an in some embodiments, the inside mechanical stirring device that is equipped with of oxygen deficiency pond, mechanical stirring device is including spaning fixed beam, motor and the rabbling arm in the pond, lateral wall fixed connection in fixed beam and the pond, the motor is installed the central point of fixed beam, be connected with on the motor the rabbling arm, the motor rotates in order to drive the rotatory stirring of rabbling arm, the rabbling arm stretches into the aquatic in the pond.
The utility model discloses an in some embodiments, the end of intaking of first water pump, second water pump and third water pump all installs and keeps off the net.
In some embodiments of the present invention, the water inlet end of the water pipe is provided with a filtering membrane.
In some embodiments of the present invention, a check valve is disposed in the second communicating pipe.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of a biological nitrogen and phosphorus removal device of MBBR + MBR for municipal domestic sewage in an embodiment of the utility model;
FIG. 2 is a schematic structural diagram of an MBBR biofilm reactor according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an MBR aeration membrane according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a mechanical stirring device in an anoxic tank according to an embodiment of the present invention.
Reference numerals:
a water inlet tank 100 and a water inlet pipe 110;
an anaerobic tank 200, a first communicating pipe 210, a first water pump 220, and a first water pipe 230;
the anoxic tank 300, the second water pump 320, the second water pipe 330, the mechanical stirring device 340, the fixed beam 341, the motor 342, and the stirring arm 343;
the aerobic tank 400, the second communicating pipe 410, the third water pump 420, the third water pipe 430 and the aeration pipe 440;
the device comprises an MBR reaction tank 500, an MBR aeration membrane 510, a water delivery pipe 530, a self-priming pump 540, a sludge discharge pump 550 and a sludge discharge pipe 560;
a reservoir 600, a water outlet pipe 610 and a valve 620;
roll-up matrix 1100, bio-carrier 1110, interlayer filler 1120, restraint device 1200;
an air inlet pipe 1500, an oxygen permeable hydrophobic membrane bag 1510, a gas transmission screen 1511 and an aeration filler 1520.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1, according to the utility model discloses town domestic sewage MBBR + MBR biological nitrogen and phosphorus removal device, include: the water inlet tank 100 is provided with a water inlet pipe 110 on the tank wall of the water inlet tank 100;
the anaerobic tank 200 is internally provided with an MBBR biofilm reactor, the anaerobic tank 200 is communicated with the water inlet tank 100 through a first communication pipe 210, the bottom of the anaerobic tank 200 is provided with a first water pump 220, and the first water pump 220 is connected with a first water pipe 230;
the anaerobic tank 300 is provided with an MBBR biofilm reactor in the anaerobic tank 300, the water outlet of the first water pipe 230 is communicated with the anaerobic tank 300, the bottom of the anaerobic tank 300 is provided with a second water pump 320, and the second water pump 320 is connected with a second water pipe 330;
an MBBR biofilm reactor is arranged in the aerobic tank 400, the aerobic tank 400 is communicated with the anoxic tank 300 through a second communicating pipe 410, a water outlet of a second water pipe 330 is communicated with the aerobic tank 400, an aeration pipe 440 is laid at the bottom of the aerobic tank 400, a third water pump 420 is arranged at the bottom of the aerobic tank 400, and the third water pump 420 is connected with a third water pipe 430;
the MBR reaction tank 500, the water outlet of the third water pipe 430 is communicated with the MBR reaction tank 500, an MBR aeration membrane 510 is arranged in the MBR reaction tank 500, a water conveying pipe 530 is arranged in the MBR reaction tank 500, the water inlet end of the water conveying pipe 530 is communicated with the MBR reaction tank 500, a self-priming pump 540 is arranged at the middle section of the water conveying pipe 530, a sludge discharge pump 550 is arranged at the bottom of the MBR reaction tank 500, and the sludge discharge pump 550 is connected with a sludge discharge pipe 560;
the water reservoir 600, the water reservoir 600 is communicated with the water outlet end of the water pipe 530, the water reservoir 600 is provided with a water outlet pipe 610, and the water outlet pipe 610 is provided with a valve 620.
Domestic sewage enters the water inlet tank 100 through the water inlet pipe 110, slightly precipitates and then enters the anaerobic tank 200 through the first communication pipe 210, the facultative anaerobic fermentation bacteria on the MBBR biomembrane reactor in the anaerobic tank 200 convert biodegradable organic matters in the sewage into micromolecule fermentation products such as volatile fatty acid and the like, the polyphosphate accumulating bacteria also release polyphosphate stored in the bacteria, and then the sewage is continuously sent to the anoxic tank 300 through the first water pump 220; denitrifying bacteria on the MBBR biofilm reactor in the anoxic tank 300 perform denitrification reaction by utilizing a large amount of nitrate in the sewage to achieve the purpose of simultaneous decarbonization and denitrification, the sewage is conveyed into the aerobic tank 400 through the second water pump 320, the aeration pipe 440 is laid at the bottom of the aerobic tank 400, the aeration pipe 440 is communicated with an external fan to provide oxygen required by microorganisms in the tank, phosphorus accumulating bacteria on the MBBR biofilm reactor in the aerobic tank 400 absorb soluble phosphorus in the environment, so that the concentration of the phosphorus in the sewage is greatly reduced, nitrifying bacteria perform ammoniation and nitrification in the aerobic environment, and nitrogen in the water is converted into NO2 -And NO3 -Then, sewage flows back to the anoxic tank 300 through the second communicating pipe 410 to perform denitrification reaction for denitrification, the sewage in the aerobic tank 400 is also sent to the MBR reaction tank 500 through the third water pump 420, the MBR aeration membrane 510 in the tank is connected with an external fan through a gas pipe to provide oxygen required by microorganisms on the MBR aeration membrane 510, the microorganisms attached to the MBR aeration membrane 510 perform nitrification and denitrification on the sewage simultaneously, the denitrification efficiency is greatly improved, the treated water is sent to the reservoir 600 through the water conveying pipe 530 and the self-sucking pump 540, and the bottom of the MBR reaction tank 500 is provided with the sludge discharge pump 550 for discharging solid precipitates generated in the tank periodically.
Referring to fig. 2, in some embodiments of the present invention, the MBBR biofilm reactor includes a roll type substrate 1100, a binding device 1200 and an impeller device 1300, the roll type substrate 1100 is formed by rolling a bio-carrier 1110 and an interlayer filler 1120 from outside to inside, and the bio-carrier 1110 is provided with a plurality of through holes; the binding device 1200 is fixed along the circumferential direction of the rolled substrate 1100 to bind the rolled substrate 1100; both ends of the roll type base 1100 are provided with impeller devices 1300, and the impeller devices 1300 are fixedly connected with the roll type base 1100 to drive the roll type base 1100 to rotate.
Roll up formula base member 1100 and roll up the system by biological carrier 1110 and interlaminar filler 1120 and form, this structure has high specific surface area, microorganism attachment space has been increased, roll up formula base member 1100 both ends face and be equipped with impeller device 1300, it receives rivers effect to drive roll up formula base member 1100 rotatory showy removal in the lump, thereby it is wider to distribute in the sewage treatment pond, a plurality of perforating hole has been seted up on biological carrier 1110 surface, sewage flows inside the carrier easily, the biomembrane on the biological carrier 1110 is changeed and is contacted with the pollutant, the degradation efficiency of biomembrane to pollutant in the sewage has been improved.
In some embodiments of the present invention, impeller device 1300 includes a fixed disk 1310 and a plurality of vanes 1320, fixed disk 1310 is circular ring-shaped, and vanes 1320 are uniformly arranged around the axis of fixed disk 1310 and fixedly connected to fixed disk 1310. Impeller device 1300 includes fixed disk 1310 and a plurality of blade 1320, and fixed disk 1310 is the ring form, can fixed mounting on the terminal surface of rolling up formula base member 1100, and blade 1320 around the even arrangement of the axis of fixed disk 1310, and with fixed disk 1310 fixed connection, roll up formula base member 1100 and move along with rivers, can fully mix with the pollutant in the sewage, be favorable to the degradation of pollutant.
Referring to fig. 3, in some embodiments of the present invention, the MBR aeration membrane 510 includes a rolled MBR membrane body and an outlet pipe, and the rolled MBR membrane body includes a central inlet pipe 1500 and a biofilm group rolled on the inlet pipe 1500; an air outlet structure is arranged on the pipe body of the air inlet pipe 1500; the biomembrane group comprises an oxygen-permeable hydrophobic membrane bag 1510 and an aeration filler 1520 from outside to inside, the oxygen-permeable hydrophobic membrane bag 1510 is of a bag-type structure with three sealed sides and an opening at one side, the opening of the oxygen-permeable hydrophobic membrane bag 1510 is communicated with the air outlet structure of the air inlet pipe 1500, and a gas transmission screen 1511 is arranged in the bag of the oxygen-permeable hydrophobic membrane bag 1510; the aeration filler 1520 is a flat plate type filler, and an aeration structure is arranged on the flat plate; the air outlet pipe is arranged at the outer side of the roll-type MBR membrane body and is communicated with the oxygen-permeable hydrophobic membrane bag 1510.
The roll type MBR membrane body is formed by alternately and spirally rolling aeration filler 1520 and oxygen permeable hydrophobic membrane bags 1510, so that an MBR membrane component with high filling density is obtained, the contact area between air and the aeration filler 1520 during aeration is increased, the aeration efficiency is improved, the energy consumption is reduced, the removal efficiency of COD (chemical oxygen demand) and ammonia nitrogen is improved, and the like.
In some embodiments of the present invention, the aeration packing 1520 is a cylindrical convex polypropylene flat packing or a flat packing with a loose net structure or a flat packing with a corrugated structure.
The aeration structure arranged on the aeration filler 1520 can increase the aeration specific area of the aeration filler 1520, and specifically, the aeration specific area of the aeration filler 1520 can be increased by a cylindrical convex polypropylene flat plate filler or a flat plate filler with a loose net structure or a flat plate filler with a corrugated structure, so that the aeration efficiency is improved.
Referring to fig. 4, in some embodiments of the present invention, the mechanical stirring device 340 is disposed inside the anoxic tank 300, the mechanical stirring device 340 includes a fixed beam 341, a motor 342 and a stirring arm 343 stretching inside the tank, the fixed beam 341 is fixedly connected to a side wall of the tank, the motor 342 is mounted at a central point of the fixed beam 341, the stirring arm 343 is connected to the motor 342, the motor 342 rotates to drive the stirring arm 343 to stir, and the stirring arm 343 stretches into the water inside the tank.
The motor 342 drives the stirring arm 343 to rotate, and the MBBR biofilm reactor in the anoxic tank 300 is stirred by the stirring arm 343 to flow, so that pollutants in the sewage can be fully contacted with microorganisms on the carrier, and the maximum benefit of microbial degradation can be obtained.
In some embodiments of the present invention, the water inlet end of the first water pump 220, the second water pump 320 and the third water pump 420 is provided with a baffle net.
Through the installation fender net, can prevent that damaged fritter MBBR biofilm reactor from getting into the damage that causes the water pump among these water pumps.
In some embodiments of the present invention, the water inlet end of the water pipe 530 is provided with a filtering membrane. The filtering membrane can filter suspended matters in the MBR reaction tank 500, so that the water quality conveyed to the water storage tank 600 is better.
In some embodiments of the present invention, a check valve is disposed in the second communication pipe 410. The check valve enables the sewage passing through the second communication pipe 410 to maintain the direction of the flow from the aerobic tank 400 to the anoxic tank 300, so that the circulation treatment of the aerobic tank 400 and the anoxic tank 300 is more smoothly performed to maintain high treatment efficiency.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. The utility model provides a biological nitrogen and phosphorus removal device of town domestic sewage MBBR + MBR which characterized in that includes:
the water inlet device comprises a water inlet tank (100), wherein a water inlet pipe (110) is arranged on the tank wall of the water inlet tank (100);
the anaerobic tank (200) is internally provided with an MBBR biofilm reactor, the anaerobic tank (200) is communicated with the water inlet tank (100) through a first communicating pipe (210), the bottom of the anaerobic tank (200) is provided with a first water pump (220), and the first water pump (220) is connected with a first water pipe (230);
the anaerobic tank (300), the MBBR biomembrane reactor is arranged in the anaerobic tank (300), the water outlet of the first water pipe (230) is communicated with the anaerobic tank (300), a second water pump (320) is arranged at the bottom of the anaerobic tank (300), and the second water pump (320) is connected with a second water pipe (330);
the aerobic tank (400) is internally provided with the MBBR biofilm reactor, the aerobic tank (400) is communicated with the anoxic tank (300) through a second communicating pipe (410), a water outlet of the second water pipe (330) is communicated with the aerobic tank (400), an aeration pipe (440) is laid at the bottom of the aerobic tank (400), a third water pump (420) is arranged at the bottom of the aerobic tank (400), and the third water pump (420) is connected with a third water pipe (430);
an outlet of the third water pipe (430) is communicated with the MBR reaction tank (500), an MBR aeration membrane (510) is arranged in the MBR reaction tank (500), a water conveying pipe (530) is arranged in the MBR reaction tank (500), a water inlet end of the water conveying pipe (530) is communicated with the MBR reaction tank (500), a self-priming pump (540) is arranged in the middle section of the water conveying pipe (530), a sludge discharge pump (550) is arranged at the bottom of the MBR reaction tank (500), and the sludge discharge pump (550) is connected with a sludge discharge pipe (560);
the water storage tank (600), the water storage tank (600) with the play water end intercommunication of raceway (530), the water storage tank (600) is equipped with outlet pipe (610), be equipped with valve (620) on outlet pipe (610).
2. The device for biological nitrogen and phosphorus removal by MBBR + MBR in urban domestic sewage according to claim 1, wherein the MBBR biofilm reactor comprises a roll-type substrate (1100), a binding device (1200) and an impeller device (1300), the roll-type substrate (1100) is formed by rolling a biological carrier (1110) and an interlayer filler (1120) from outside to inside, and a plurality of through holes are formed in the biological carrier (1110); the binding device (1200) is fixed along the circumferential direction of the rolled base (1100) to bind the rolled base (1100); the impeller devices (1300) are arranged at two ends of the roll-type base body (1100), and the impeller devices (1300) are fixedly connected with the roll-type base body (1100) to drive the roll-type base body (1100) to rotate.
3. The device for biological nitrogen and phosphorus removal by MBBR + MBR in urban domestic sewage according to claim 2, wherein the impeller device (1300) comprises a fixed disk (1310) and a plurality of blades (1320), the fixed disk (1310) is annular, and the blades (1320) are uniformly arranged around the axis of the fixed disk (1310) and are fixedly connected with the fixed disk (1310).
4. The device for biological nitrogen and phosphorus removal by MBBR + MBR in urban domestic sewage according to claim 1, wherein the MBR aeration membrane (510) comprises a roll-type MBR membrane body and an outlet pipe, and the roll-type MBR membrane body comprises a central inlet pipe (1500) and a biological membrane group rolled on the inlet pipe (1500); the pipe body of the air inlet pipe (1500) is provided with an air outlet structure; the biological membrane group comprises an oxygen-permeable hydrophobic membrane bag (1510) and an aeration filler (1520) from outside to inside, the oxygen-permeable hydrophobic membrane bag (1510) is of a bag-type structure with three sealed sides and an opening at one side, the opening of the oxygen-permeable hydrophobic membrane bag is communicated with the air outlet structure of the air inlet pipe (1500), and a gas transmission and isolation net (1511) is placed in the oxygen-permeable hydrophobic membrane bag (1510); the aeration filler (1520) is a flat plate type filler, and an aeration structure is arranged on the flat plate; the air outlet pipe is arranged on the outer side of the roll-type MBR membrane body and is communicated with the oxygen-permeable hydrophobic membrane bag (1510).
5. The biological nitrogen and phosphorus removal device by MBBR + MBR in urban domestic sewage according to claim 4, characterized in that the aerated filler (1520) is cylindrical convex polypropylene flat plate filler or flat plate filler with loose net structure or flat plate filler with corrugated structure.
6. The biological nitrogen and phosphorus removal device by MBBR + MBR in urban domestic sewage according to claim 1, characterized in that a mechanical stirring device (340) is arranged inside the anoxic tank (300), the mechanical stirring device (340) comprises a fixed beam (341), a motor (342) and a stirring arm (343) which cross over the tank, the fixed beam (341) is fixedly connected with the side wall inside the tank, the motor (342) is installed at the central point of the fixed beam (341), the stirring arm (343) is connected to the motor (342), the motor (342) rotates to drive the stirring arm (343) to rotate and stir, and the stirring arm (343) extends into the water inside the tank.
7. The biological nitrogen and phosphorus removal device by using the MBBR + MBR in the urban domestic sewage according to claim 1, wherein the water inlet ends of the first water pump (220), the second water pump (320) and the third water pump (420) are all provided with a retaining net.
8. The biological nitrogen and phosphorus removal device by MBBR + MBR in urban domestic sewage according to claim 1, characterized in that the water inlet end of the water pipe (530) is provided with a filtering membrane.
9. The biological nitrogen and phosphorus removal device by MBBR + MBR in urban domestic sewage according to claim 1, characterized in that a one-way valve is arranged in the second communicating pipe (410).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022783182.8U CN214400156U (en) | 2020-11-26 | 2020-11-26 | Biological nitrogen and phosphorus removal device of town domestic sewage MBBR + MBR |
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| CN202022783182.8U CN214400156U (en) | 2020-11-26 | 2020-11-26 | Biological nitrogen and phosphorus removal device of town domestic sewage MBBR + MBR |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115991540A (en) * | 2023-03-23 | 2023-04-21 | 中侨启迪(山东)新材料科技有限公司 | Autotrophic denitrification sewage treatment equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115991540A (en) * | 2023-03-23 | 2023-04-21 | 中侨启迪(山东)新材料科技有限公司 | Autotrophic denitrification sewage treatment equipment |
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