CN214829759U - Multi-stage AO biomembrane sewage treatment device - Google Patents
Multi-stage AO biomembrane sewage treatment device Download PDFInfo
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- CN214829759U CN214829759U CN202120649421.2U CN202120649421U CN214829759U CN 214829759 U CN214829759 U CN 214829759U CN 202120649421 U CN202120649421 U CN 202120649421U CN 214829759 U CN214829759 U CN 214829759U
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- 239000010865 sewage Substances 0.000 title claims abstract description 43
- 238000006243 chemical reaction Methods 0.000 claims abstract description 222
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 238000004062 sedimentation Methods 0.000 claims abstract description 35
- 230000029087 digestion Effects 0.000 claims abstract description 34
- 239000005416 organic matter Substances 0.000 claims abstract description 11
- 239000012528 membrane Substances 0.000 claims abstract description 7
- 238000010992 reflux Methods 0.000 claims description 19
- 238000005273 aeration Methods 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 7
- 230000000249 desinfective effect Effects 0.000 claims description 6
- 230000001954 sterilising effect Effects 0.000 claims description 6
- 239000011229 interlayer Substances 0.000 claims description 3
- 239000010802 sludge Substances 0.000 abstract description 15
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 5
- 239000011574 phosphorus Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 238000004042 decolorization Methods 0.000 abstract 2
- 239000000945 filler Substances 0.000 description 11
- 244000005700 microbiome Species 0.000 description 9
- 238000007789 sealing Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
本实用新型公开了一种多级式AO生物膜污水处理装置，属于污水处理领域，包括厌氧沉淀池，所述厌氧沉淀池与厌氧消化储水池连通，所述厌氧消化储水池与第一好氧生物反应池连通，所述第一好氧生物反应池与有机质厌氧消化池连通，所述有机质厌氧消化池与第二好氧生物反应池连通，所述第二好氧生物反应池与沉淀池连通，所述沉淀池与回流储水池连通，所述回流储水池与脱色消毒储水池连通，所述脱色消毒储水池与出水储存池连通。本实用新型通过设置多级AO活性污泥反应池，本实用新型通过设置多级AO活性污泥反应池，结合AO水处理工艺、膜生物反应器以及UV‑O3联合处理，实现污水高效脱氮除磷及深度消毒，达到污水回用的目的。
The utility model discloses a multi-stage AO biofilm sewage treatment device, belonging to the field of sewage treatment, comprising an anaerobic sedimentation tank, the anaerobic sedimentation tank is communicated with an anaerobic digestion storage tank, and the anaerobic digestion storage tank is connected with The first aerobic biological reaction tank is in communication, the first aerobic biological reaction tank is in communication with the organic matter anaerobic digestion tank, the organic matter anaerobic digestion tank is in communication with the second aerobic biological reaction tank, and the second aerobic biological reaction tank is in communication The reaction tank is in communication with the sedimentation tank, the sedimentation tank is in communication with the return water storage tank, the return water storage tank is in communication with the decolorization and disinfection tank, and the decolorization and disinfection tank is in communication with the effluent storage tank. The utility model is provided with multi-level AO activated sludge reaction tank, the utility model is equipped with multi-level AO activated sludge reaction tank, combined with AO water treatment process, membrane bioreactor and UV-O 3 combined treatment, to achieve high-efficiency sewage treatment. Nitrogen and phosphorus removal and deep disinfection to achieve the purpose of sewage reuse.
Description
Technical Field
The utility model relates to a sewage treatment and sewage retrieval and utilization technical field especially relate to a multistage formula AO biomembrane sewage treatment plant.
Background
In recent years, the national attention on the problem of agricultural water source pollution and the attention on the problem of human living environment in rural areas are continuously improved, and the construction of rural sewage treatment facilities and the coverage rate of a pipe network are remarkably improved. Compared with breeding wastewater and farmland drainage, the domestic sewage treatment method has the advantages of low pollution degree, high treatment efficiency and easy reuse; but due to dispersed living in rural areas, complex terrain, shortage of water resources in western areas and the like, the domestic sewage collection cost is high, the investment for centralized treatment and construction is high, and the construction difficulty is high. Therefore, the miniaturized treatment equipment for rural domestic sewage gradually becomes the key application point for treating and recycling sewage in rural areas.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems that the treatment efficiency of the existing sewage treatment equipment is low, the water quality of the discharged water is difficult to reach the recycling standard, and providing a multi-stage AO biomembrane sewage treatment device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a multi-stage AO biomembrane sewage treatment device comprises an anaerobic sedimentation tank, wherein the anaerobic sedimentation tank is communicated with an anaerobic digestion water tank, the anaerobic digestion water tank is communicated with a first aerobic biological reaction tank, the first aerobic biological reaction tank is communicated with an organic anaerobic digestion tank, the organic anaerobic digestion tank is communicated with a second aerobic biological reaction tank, the second aerobic biological reaction tank is communicated with a sedimentation tank, the sedimentation tank is communicated with a backflow water tank, the backflow water tank is communicated with a decoloring and disinfecting water tank, and the decoloring and disinfecting water tank is communicated with a water outlet storage tank;
the anaerobic sedimentation tank comprises a first reaction tank and a second reaction tank, the bottoms of the first reaction tank and the second reaction tank are both provided with holes and are communicated with each other, the anaerobic digestion water storage tank comprises a third reaction tank, a fourth reaction tank and a fifth reaction tank, the bottoms of the third reaction tank, the fourth reaction tank and the fifth reaction tank are all provided with holes and are communicated with each other, the first aerobic biological reaction tank comprises a sixth reaction tank and a seventh reaction tank, the bottoms of the sixth reaction tank and the seventh reaction tank are both provided with holes and are communicated with each other, the organic matter anaerobic digestion tank comprises an eighth reaction tank and a ninth reaction tank, the bottoms of the eighth reaction tank and the ninth reaction tank are both provided with holes and are communicated with each other, the second aerobic biological reaction tank comprises a tenth reaction tank and an eleventh reaction tank, and the bottoms of the tenth reaction tank and the eleventh reaction tank are both provided with holes and are communicated with each other;
the second reaction tank is communicated with the third reaction tank, the fifth reaction tank is communicated with the sixth reaction tank, the seventh reaction tank is communicated with the eighth reaction tank, the ninth reaction tank is communicated with the tenth reaction tank, the eleventh reaction tank is communicated with the sedimentation tank, a reflux pump is jointly installed at the bottom of the second reaction tank and the sedimentation tank, and a reflux pump is jointly installed at the third reaction tank and the reflux water storage tank.
Further, install the grid in the second reaction tank, all install the grid in third reaction tank, fourth reaction tank and the fifth reaction tank, all install the grid in eighth reaction tank and the ninth reaction tank, all install the grid in tenth reaction tank and the eleventh reaction tank, install the grid in the decoloration disinfection storage water tank.
Furthermore, a micropore aeration device is arranged at the bottom of the seventh reaction tank, and micropore aeration devices are arranged at the bottoms of the tenth reaction tank and the eleventh reaction tank.
Further, be equipped with active carbon intermediate layer filter membrane between decoloration disinfection tank and the backward flow tank, decoloration disinfection tank top is sealed, and the UV photoreactor is equipped with at the middle part, and the photoreactor both ends pass through the sealing ring respectively with decoloration disinfection tank top and bottom sealing connection, micropore aeration device is installed to decoloration disinfection tank bottom, and micropore aeration device outside links to each other with ozone generator.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses a set up multistage AO activated sludge reaction pond, combine AO water treatment process, membrane bioreactor and UV-O3The combined treatment realizes the high-efficiency nitrogen and phosphorus removal and the deep disinfection of the sewage, and achieves the purpose of recycling the sewage.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic view of the overall structure of a multi-stage AO biofilm sewage treatment device of the present invention;
FIG. 2 is a schematic view of the treatment process of a multi-stage AO biofilm sewage treatment device provided by the present invention.
In the figure: 1 anaerobic sedimentation tank, 2 anaerobic digestion water storage tank, 3 first aerobic biological reaction tank, 4 organic matter anaerobic digestion tank, 5 second aerobic biological reaction tank, 6 sedimentation tank, 7 backflow water storage tank, 8 decoloration disinfection water storage tank, 9 effluent water storage tank, 101 first reaction tank, 102 second reaction tank, 201 third reaction tank, 202 fourth reaction tank, 203 fifth reaction tank, 301 sixth reaction tank, 302 seventh reaction tank, 401 eighth reaction tank, 402 ninth reaction tank, 501 tenth reaction tank, 502 eleventh reaction tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "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 simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-2, a multistage AO biofilm sewage treatment plant comprises an anaerobic sedimentation tank 1, wherein the anaerobic sedimentation tank 1 is communicated with an anaerobic digestion water storage tank 2, the anaerobic digestion water storage tank 2 is communicated with a first aerobic biological reaction tank 3, the first aerobic biological reaction tank 3 is communicated with an organic matter anaerobic digestion tank 4, the organic matter anaerobic digestion tank 4 is communicated with a second aerobic biological reaction tank 5, the second aerobic biological reaction tank 5 is communicated with a sedimentation tank 6, the sedimentation tank 6 is communicated with a reflux water storage tank 7, the reflux water storage tank 7 is communicated with a decoloring and sterilizing water storage tank 8, and the decoloring and sterilizing water storage tank 8 is communicated with a water outlet storage tank 9;
the anaerobic sedimentation tank 1 comprises a first reaction tank 101 and a second reaction tank 102, the bottoms of the first reaction tank 101 and the second reaction tank 102 are both provided with holes and are communicated with each other, the anaerobic digestion water storage tank 2 comprises a third reaction tank 201, a fourth reaction tank 202, a fifth reaction tank 203, a third reaction tank 201, the bottoms of the fourth reaction tank 202 and the fifth reaction tank 203 are both provided with holes and are communicated with each other, the first aerobic biological reaction tank 3 comprises a sixth reaction tank 301 and a seventh reaction tank 302, the bottoms of the sixth reaction tank 301 and the seventh reaction tank 302 are both provided with holes and are communicated with each other, the organic matter anaerobic digestion tank 4 comprises an eighth reaction tank 401 and a ninth reaction tank 402, the bottoms of the eighth reaction tank 401 and the ninth reaction tank 402 are both provided with holes and are communicated with each other, the second aerobic biological reaction tank 5 comprises a tenth reaction tank 501 and an eleventh reaction tank 502, and the bottoms of the tenth reaction tank 501 and the eleventh reaction tank 502 are both provided with holes and are communicated with each other;
the second reaction tank 102 is communicated with the third reaction tank 201, the fifth reaction tank 203 is communicated with the sixth reaction tank 301, the seventh reaction tank 302 is communicated with the eighth reaction tank 401, the ninth reaction tank 402 is communicated with the tenth reaction tank 501, the eleventh reaction tank 502 is communicated with the sedimentation tank 6, a reflux pump is installed at the bottoms of the second reaction tank 102 and the sedimentation tank 6 together, and a reflux pump is installed at the third reaction tank 201 and the reflux water storage tank 7 together.
Grids are arranged in the second reaction tank 102, grids are arranged in the third reaction tank 201, the fourth reaction tank 202 and the fifth reaction tank 203, grids are arranged in the eighth reaction tank 401 and the ninth reaction tank 402, grids are arranged in the tenth reaction tank 501 and the eleventh reaction tank 502, and grids are arranged in the decoloring and sterilizing water storage tank 8.
The bottom of the seventh reaction tank 302 is provided with a microporous aeration device, and the bottoms of the tenth reaction tank 501 and the eleventh reaction tank 502 are provided with microporous aeration devices.
An active carbon interlayer filter membrane is arranged between the decoloring and sterilizing water storage tank 8 and the reflux water storage tank 7. 8 middle parts of decoloration disinfection tank are UV photoreactor, including outside quartz protective cover in vacuum and inside UV lamp, and the inside low pressure mercury vapour that is equipped with of UV lamp fluorescent tube, photoreactor both ends pass through the sealing ring respectively with 8 tops of decoloration disinfection tank and bottom sealing connection, and the outside sets up the power and participates in. The bottom of the decoloring and sterilizing water storage tank 8 is provided with a micropore aeration device, and the outside of the micropore aeration device is connected with an ozone generator.
The utility model discloses a theory of operation and use flow: sewage firstly enters an anaerobic sedimentation tank 1 from a water inlet, the anaerobic sedimentation tank 1 comprises a first reaction tank 101 and a second reaction tank 102, the bottoms of the two reaction tanks are communicated, the first reaction tank 101 controls the anoxic state of the sewage environment, organic plankton homogenization and softening are carried out by utilizing the hydrolytic acidification of microorganisms in anaerobic sludge, and the pH value of buffered inlet water is adjusted; the bottom of the second reaction tank 102 is connected with the bottom of the sedimentation tank 6 through a reflux pump, and after the sludge after reflux is mixed with the sludge precipitated by the inlet water, the sludge is subjected to coarse filtration through a grid additionally arranged in the second reaction tank 102, so that large-particle impurities are settled, and the treatment load is reduced.
The anaerobic sedimentation tank 1 is connected with the upper part of an anaerobic digestion water storage tank 2, the anaerobic digestion water storage tank 2 consists of a third reaction tank 201, a fourth reaction tank 202, a fifth reaction tank 203 and three groups of reaction tanks, the dissolved oxygen amount of the anaerobic tank is lower than 0.5ppm, and the bottoms of the three groups of reaction tanks are connected so as to buffer a large amount of inflow water of the device in a concentrated water using period and ensure the stable operation of the device; the third reaction tank 201 is connected with the reflux water storage tank 7 through a reflux pump. The bottom of three groups of reaction tanks of the third reaction tank 201, the fourth reaction tank 202 and the fifth reaction tank 203 is filled with anaerobic granular sludge with the volume of 2 percent of that of the reaction tanks, the sewage denitrification is realized through the denitrification, macromolecular organic matters are digested and decomposed, grids are arranged at the height 3/4 of the reaction tanks, spherical microbial carrier fillers with the volume of 40 percent of that of the reaction tanks are filled under the grids, so that the carrier fillers are effectively immersed in the reaction tanks, the carrier fillers pass through attached microbial communities, the insoluble organic matters in the sewage are converted into soluble organic matters by facultative microbes, and the digestion efficiency can be obviously improved through biological films attached to the carrier fillers.
The anaerobic digestion water storage tank 2 is connected with the upper part of the first aerobic biological reaction tank 3, the first aerobic biological reaction tank 3 consists of two groups of reaction tanks of a sixth reaction tank 301 and a seventh reaction tank 302, the two groups of reaction tanks are connected through the bottom and are filled with aerobic sludge with the volume of 2 percent of the reaction tanks. The bottom of the seventh reaction tank 302 is provided with a microporous aeration device which performs oxygen-charging aeration on the sewage and simultaneously plays a role of stirring the sewage, and the sixth reaction tank 301 is used as a buffer tank to prevent oxygen-containing sewage in the seventh reaction tank 302 from flowing back to enter the anaerobic digestion water storage tank 2 to influence the anaerobic digestion effect. A grid is arranged at the height 3/4 of the reaction tank, spherical microorganism carrier filler with the volume of 40 percent of that of the reaction tank is filled below the grid, aerobic microorganism communities are attached to the carrier filler, ammonia nitrogen in the sewage is oxidized by the reaction tank through nitrification and activation of the aerobic microorganisms, and the ammonia nitrogen flows into the anaerobic tank along with the sewage in the form of nitrate radicals.
The first aerobic biological reaction tank 3 is connected with the upper part of the organic matter anaerobic digestion tank 4, the organic matter anaerobic digestion tank 4 consists of an eighth reaction tank 401 and a ninth reaction tank 402, facultative anaerobic reaction occurs, the dissolved oxygen amount is 0.5-1ppm, the two reaction tanks are connected through the bottom, and anaerobic sludge with the volume of 2% of the reaction tanks is filled. A grid is arranged at the height 3/4 of the reaction tank, a microorganism carrier filler in a shape of 40% of the volume of the reaction tank is filled under the grid, and the anaerobic microorganism community is attached to the carrier filler. Denitrifying bacteria in the eighth reaction tank 401 and the ninth reaction tank 402 use residual carbon-containing organic matters in the sewage as carbon sources, and nitrate radicals flowing back from the aerobic tanks at two ends are reduced into nitrogen to be released, so that deep denitrification is realized.
The organic matter anaerobic digestion tank 4 is connected with the upper part of a second aerobic biological reaction tank 5, the second aerobic biological reaction tank 5 consists of a tenth reaction tank 501 and an eleventh reaction tank 502, the dissolved oxygen of the aerobic tanks is 2-4ppm, and aerobic sludge with the volume of 2% of the reaction tanks is filled. The two bottoms are respectively provided with a micropore aeration device for carrying out oxygenation and aeration on the sewage. A grid is arranged at the height 3/4 of the reaction tank, spherical microorganism carrier filler with the volume of 40 percent of that of the reaction tank is filled below the grid, aerobic microorganisms are attached to the carrier filler, ammonia nitrogen removal is further realized through nitration reaction, meanwhile, the aerobic microorganisms attached to the carrier filler enrich phosphorus in the sewage through metabolism, and the phosphorus-enriched sludge is separated from the sewage in the form of phosphorus-enriched sludge after precipitation separation.
The second aerobic biological reaction tank 5 is connected with the upper part of the sedimentation tank 6, sewage flows into the sedimentation tank 6 and is intercepted and settled to the bottom of the tank through a filter screen, the bottom of the tank forms a mud bucket through an inclined baffle to gather sludge, and the sludge periodically flows back to the anaerobic sedimentation tank 1 through a reflux pump.
The sedimentation tank 6 is connected with the upper part of the backflow water storage tank 7, and a filter membrane is arranged at the joint to prevent floating particles from entering the backflow water storage tank 7. The backflow water storage tank 7 is provided with a backflow pipe and is connected with the anaerobic digestion water storage tank 2 through a backflow pump, and due to the fact that the equipment size is small, the backflow proportion can be controlled to be 5-10 high backflow ratio, and sewage purification is achieved to the greatest extent on the basis of controlling energy consumption.
The reflux water storage tank 7 is connected with the upper part of the decoloration water storage tank 8, and the connecting part is provided with an activated carbon interlayer filter membrane to realize filtration and primary decoloration. Decoloration disinfection tank upper portion is sealed, and the centre is UV photoreactor, including outside quartz protective cover in vacuum and inside UV lamp, the inside low pressure mercury vapour that is equipped with of UV lamp fluorescent tube, both ends pass through the sealing ring and respectively with tank top and bottom sealing connection, and the outside sets up the power and participates in. The bottom of the pool is provided with a micropore aeration device for realizing internal circulation stirring of sewage, the outside of the device is connected with an ozone generator, the ozone generator selects an integrated device comprising an air pretreatment system, the dosage of ozone is 10mg/L, the ozone aeration and a UV photoreactor realize deep photocatalytic oxidation together, and the sewage is disinfected and sterilized and is thoroughly oxidized and decomposed into refractory organic matters. The water quality of the effluent of the disinfection and decoloration water storage tank meets the urban water quality standards (CJ/T206-.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. The multi-stage AO biomembrane sewage treatment device comprises an anaerobic sedimentation tank (1) and is characterized in that the anaerobic sedimentation tank (1) is communicated with an anaerobic digestion water storage tank (2), the anaerobic digestion water storage tank (2) is communicated with a first aerobic biological reaction tank (3), the first aerobic biological reaction tank (3) is communicated with an organic anaerobic digestion tank (4), the organic anaerobic digestion tank (4) is communicated with a second aerobic biological reaction tank (5), the second aerobic biological reaction tank (5) is communicated with a sedimentation tank (6), the sedimentation tank (6) is communicated with a backflow water storage tank (7), the backflow water storage tank (7) is communicated with a decoloring and disinfecting water storage tank (8), and the decoloring and disinfecting water storage tank (8) is communicated with an effluent water storage tank (9);
the anaerobic sedimentation tank (1) comprises a first reaction tank (101) and a second reaction tank (102), the bottoms of the first reaction tank (101) and the second reaction tank (102) are all opened and communicated with each other, the anaerobic digestion water storage tank (2) comprises a third reaction tank (201), a fourth reaction tank (202) and a fifth reaction tank (203), the bottoms of the third reaction tank (201), the fourth reaction tank (202) and the fifth reaction tank (203) are all opened and communicated with each other, the first aerobic biological reaction tank (3) comprises a sixth reaction tank (301) and a seventh reaction tank (302), the bottoms of the sixth reaction tank (301) and the seventh reaction tank (302) are all opened and communicated with each other, the organic matter anaerobic digestion tank (4) comprises an eighth reaction tank (401) and a ninth reaction tank (402), the bottoms of the eighth reaction tank (401) and the ninth reaction tank (402) are all opened and communicated with each other, the second aerobic biological reaction tank (5) comprises a tenth reaction tank (501) and an eleventh reaction tank (502), and the bottoms of the tenth reaction tank (501) and the eleventh reaction tank (502) are both provided with holes and are communicated with each other;
the second reaction tank (102) is communicated with the third reaction tank (201), the fifth reaction tank (203) is communicated with the sixth reaction tank (301), the seventh reaction tank (302) is communicated with the eighth reaction tank (401), the ninth reaction tank (402) is communicated with the tenth reaction tank (501), the eleventh reaction tank (502) is communicated with the sedimentation tank (6), a reflux pump is installed together at the bottom of the second reaction tank (102) and the sedimentation tank (6), and the reflux pump is installed together at the third reaction tank (201) and the reflux water storage tank (7).
2. The multistage AO biofilm sewage treatment device of claim 1, wherein grids are installed in the second reaction tank (102), grids are installed in the third reaction tank (201), the fourth reaction tank (202) and the fifth reaction tank (203), grids are installed in the eighth reaction tank (401) and the ninth reaction tank (402), grids are installed in the tenth reaction tank (501) and the eleventh reaction tank (502), and grids are installed in the decoloring and sterilizing water storage tank (8).
3. The multi-stage AO biofilm sewage treatment apparatus of claim 1, wherein a micropore aeration device is installed at the bottom of the seventh reaction tank (302), and a micropore aeration device is installed at the bottom of each of the tenth reaction tank (501) and the eleventh reaction tank (502).
4. The multi-stage AO biofilm sewage treatment device of claim 1, wherein an activated carbon interlayer filter membrane is installed between the decoloring and disinfecting water tank (8) and the reflux water tank (7), a micropore aeration device is installed at the bottom of the decoloring and disinfecting water tank (8), and the outside of the micropore aeration device is connected with an ozone generator.
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| CN202120649421.2U CN214829759U (en) | 2021-03-30 | 2021-03-30 | Multi-stage AO biomembrane sewage treatment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112851054A (en) * | 2021-03-30 | 2021-05-28 | 中国农业科学院农业环境与可持续发展研究所 | Multi-stage AO biomembrane sewage treatment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112851054A (en) * | 2021-03-30 | 2021-05-28 | 中国农业科学院农业环境与可持续发展研究所 | Multi-stage AO biomembrane sewage treatment device |
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