CN215102255U - Membrane aeration biofilm reactor - Google Patents
Membrane aeration biofilm reactor Download PDFInfo
- Publication number
- CN215102255U CN215102255U CN202121325643.5U CN202121325643U CN215102255U CN 215102255 U CN215102255 U CN 215102255U CN 202121325643 U CN202121325643 U CN 202121325643U CN 215102255 U CN215102255 U CN 215102255U
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- China
- Prior art keywords
- membrane
- main part
- biomembrane
- biofilm reactor
- layer
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- 238000005273 aeration Methods 0.000 title claims abstract description 17
- 239000012528 membrane Substances 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000002209 hydrophobic effect Effects 0.000 claims description 6
- 239000012982 microporous membrane Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 16
- 239000001301 oxygen Substances 0.000 abstract description 16
- 229910052760 oxygen Inorganic materials 0.000 abstract description 16
- 239000007789 gas Substances 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000012546 transfer Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000007791 liquid phase Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 20
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000006276 transfer reaction Methods 0.000 description 1
Images
Classifications
-
- 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 relates to a membrane aeration biofilm reactor, including main part, air inlet, gas outlet, water inlet and delivery port, air inlet and gas outlet set up respectively in the main part both sides, water inlet and delivery port set up in the main part, the main part top is equipped with a plurality of trompils, is equipped with the rubber stopper on the trompil, the inside biomembrane that is equipped with of main part, and the biomembrane level sets up, and water inlet and delivery port are located the biomembrane top, and air inlet and gas outlet are located the biomembrane below. The utility model discloses a membrane aeration biofilm reactor gas-liquid area of contact is big, and the dwell time of oxygen in the liquid phase is long, consequently, and mass transfer resistance is much less than conventional aeration, has improved the oxygen utilization ratio greatly, has reduced the energy consumption.
Description
Technical Field
The utility model relates to the technical field of wastewater treatment, in particular to a membrane aeration biomembrane reactor.
Background
With the recent accelerated progress of industrialization in China, a large amount of nitrogen-containing and sulfur-containing organic wastewater is discharged in the production process of industries such as printing and dyeing, papermaking, petrochemical industry and the like. The nitrogen-containing and sulfur-containing organic wastewater has the characteristics of difficult biological treatment, low removal efficiency, complex treatment process, high treatment cost and the like, and if the nitrogen-containing and sulfur-containing organic wastewater is treated and discharged improperly, Nitrite (NO) generated in the nitrogen circulation and sulfur circulation processes is intensified2 -) Nitrogen oxide (NO/N)2O), and hydrogen sulfide (H)2S) and the like, worsen the increasingly severe water quality pollution and water resource shortage problems.
In the traditional biofilm reactor, oxygen substances, organic matters, ammonia nitrogen, sulfate and other substrates diffuse from the outer surface to the inner layer of the biofilm in the same direction, and are limited by diffusion mass transfer reaction, main microbial metabolic activity is concentrated on the surface layer of the biofilm, and the utilization rate of oxygen and the substrates is low, so that the denitrification and desulfurization efficiency is low. Under the background, a nitrogen-containing and sulfur-containing organic wastewater treatment process which is low in investment and operation cost, small in occupied area, convenient and flexible to operate and good in treatment effect is developed, and has higher theoretical value and practical significance for improving the existing water ecological environment.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve prior art's problem, provide one kind and can avoid because the pollutant adheres on the bubble and the volatile filth air stripping loss that leads to that rises thereupon, reduced power energy consumption, energy-concerving and environment-protective membrane aeration biofilm reactor.
The specific technical scheme is as follows: the utility model provides a membrane aeration biofilm reactor, includes the main part, and the air inlet, the gas outlet, water inlet and delivery port, air inlet and gas outlet set up respectively in the main part both sides, water inlet and delivery port setting are in the main part, the main part top is equipped with a plurality of trompils, is equipped with the rubber stopper on the trompil, and the inside biomembrane that is equipped with of main part, biomembrane level set up, and water inlet and delivery port are located the biomembrane top, and air inlet and gas outlet are located the biomembrane below.
Preferably, the biomembrane comprises an aerobic layer, an anoxic layer and an anaerobic layer, wherein the aerobic layer and the anaerobic layer are arranged on two sides of the anoxic layer.
As a preferred scheme, the aerobic layer is positioned above the air inlet and the air outlet, and the anaerobic layer is positioned below the water inlet and the water outlet.
Preferably, the biological membrane material is a hydrophobic microporous membrane.
Preferably, the working volume of the membrane-aerated biofilm reactor is 1.1L.
Preferably, the openings are two groups, and the two groups of openings are arranged oppositely.
Preferably, the openings are six in total.
The technical effects of the utility model: the utility model discloses a membrane aeration biofilm reactor gas-liquid area of contact is big, and the dwell time of oxygen in the liquid phase is long, consequently, and mass transfer resistance is much less than conventional aeration, has improved the oxygen utilization ratio greatly, has reduced the energy consumption.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a cross-sectional view of a membrane-aerated biofilm reactor according to an embodiment of the present invention.
FIG. 2 is another schematic diagram of a membrane-aerated biofilm reactor in accordance with an embodiment of the present invention.
Fig. 3 is a schematic view of a biofilm according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
As shown in fig. 1 to 3, the membrane-aeration biofilm reactor of the present embodiment includes a main body 1, a gas inlet 2, a gas outlet 3, a water inlet 4 and a water outlet 5, wherein the gas inlet 2 and the gas outlet 3 are respectively disposed at two sides of the main body 1, and the water inlet 4 and the water outlet 5 are disposed on the main body. The top of the main body 1 is provided with a plurality of openings 6, and rubber plugs 7 are arranged on the openings 6. The inside biomembrane 8 that is equipped with of main part 1, the setting of biomembrane 8 level, water inlet 4 and delivery port 5 are located the biomembrane top, and air inlet 2 and gas outlet 3 are located the biomembrane 8 below. Among the above-mentioned technical scheme, oxygen directly gets into the water through the biomembrane and does not produce the bubble, has improved mass transfer efficiency greatly, has avoided because the pollutant adheres to on the bubble and volatile filth air stripping loss that the rising leads to along with it, has reduced power energy consumption, and is energy-concerving and environment-protective, and because the bubble has been reduced to the liquid film resistance of adhering to the biomembrane on the carrier to the foamy membrane of non-bubble aeration, makes the power of anchoring of biomembrane on carrier and filter material strengthen, is difficult for droing. Oxygen and contaminants diffuse and transfer, respectively, from different directions. Oxygen enters the biofilm 8 under the action of oxygen supply pressure and is gradually consumed by microorganisms from the inner side to the outer side of the biofilm 8. In contrast, the contaminants in the water pass from the outside to the inside of the biofilm along the water stream and are gradually degraded in that direction. The oxygen concentration decreases gradually from the inside to the outside of the biofilm while the contaminant concentration decreases gradually from the outside to the inside of the biofilm. Set up a plurality of trompils 6 through the top, can be convenient for sensor test and biomembrane sample.
In this embodiment, the biofilm 8 includes an aerobic layer 81, an anoxic layer 82, and an anaerobic layer 83, and the aerobic layer 81 and the anaerobic layer 83 are disposed on both sides of the anoxic layer 82. The biological membrane can generate a special microbial community layered structure by controlling oxygen, oxidation reaction of organic matters, ammonia nitrogen and the like occurs in the aerobic layer 81, and electron donors of organic matters, nitrate, sulfate and the like are consumed by microbes in the anoxic layer 82 and the anaerobic layer 83 to generate denitrification reaction and sulfate reduction reaction. The aerobic layer 81 is located above the air inlet 2 and the air outlet 3, and the anaerobic layer 83 is located below the water inlet 4 and the water outlet 5.
In this embodiment, the material of the biological membrane 8 is a hydrophobic microporous membrane, the hydrophobic microporous membrane is made of hydrophobic high polymer materials such as polyethylene, polypropylene, polystyrene, polytetrafluoroethylene, and the like, and the hydrophobic microporous membrane has the advantages of poor selectivity to oxygen, large oxygen flux, easy processing, and low cost. The working volume of the membrane-aeration biofilm reactor of the embodiment is 1.1L, and the two groups of openings are oppositely arranged. Specifically, the number of the openings 6 is six in total.
The membrane-aeration biomembrane reactor has large gas-liquid contact area and long retention time of oxygen in a liquid phase, so that the mass transfer resistance is much smaller than that of a conventional aeration method, the oxygen utilization rate is greatly improved, and the energy consumption is reduced.
Although the membrane-aeration biofilm reactor of the present invention has been described above, the present invention is not limited to the above-described specific embodiments, and various modifications and changes can be made without departing from the scope of the claims. The present invention includes various modifications and alterations within the scope of the claims.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a membrane aeration biofilm reactor, its characterized in that, includes the main part, the air inlet, the gas outlet, water inlet and delivery port, air inlet and gas outlet set up respectively in the main part both sides, water inlet and delivery port setting are in the main part, the main part top is equipped with a plurality of trompils, is equipped with the rubber stopper on the trompil, and the inside biomembrane that is equipped with of main part, biomembrane level set up, and water inlet and delivery port are located the biomembrane top, and air inlet and gas outlet are located the biomembrane below.
2. A membrane-aerated biofilm reactor according to claim 1, wherein the biofilm comprises an aerobic layer, an anoxic layer and an anaerobic layer, the aerobic and anaerobic layers being disposed on either side of the anoxic layer.
3. A membrane-aerated biofilm reactor according to claim 2, wherein the aerobic layer is located above the inlet and outlet ports and the anaerobic layer is located below the inlet and outlet ports.
4. A membrane-aerated biofilm reactor according to claim 3, wherein the biofilm material is a hydrophobic microporous membrane.
5. A membrane-aerated biofilm reactor according to claim 4, wherein the working volume of the membrane-aerated biofilm reactor is 1.1L.
6. A membrane-aerated biofilm reactor according to claim 5, wherein there are two sets of said openings, the two sets of openings being oppositely disposed.
7. A membrane-aerated biofilm reactor according to claim 6, wherein there are a total of six openings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121325643.5U CN215102255U (en) | 2021-06-15 | 2021-06-15 | Membrane aeration biofilm reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121325643.5U CN215102255U (en) | 2021-06-15 | 2021-06-15 | Membrane aeration biofilm reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215102255U true CN215102255U (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121325643.5U Expired - Fee Related CN215102255U (en) | 2021-06-15 | 2021-06-15 | Membrane aeration biofilm reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215102255U (en) |
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2021
- 2021-06-15 CN CN202121325643.5U patent/CN215102255U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211210 |