CN213171645U - Square biological aerated filter with built-in settling zone - Google Patents
Square biological aerated filter with built-in settling zone Download PDFInfo
- Publication number
- CN213171645U CN213171645U CN202021482025.7U CN202021482025U CN213171645U CN 213171645 U CN213171645 U CN 213171645U CN 202021482025 U CN202021482025 U CN 202021482025U CN 213171645 U CN213171645 U CN 213171645U
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- zone
- filler
- partition plate
- water
- sludge
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- 239000000945 filler Substances 0.000 claims abstract description 81
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000002245 particle Substances 0.000 claims abstract description 35
- 239000010802 sludge Substances 0.000 claims abstract description 22
- 238000000926 separation method Methods 0.000 claims abstract description 21
- 238000004062 sedimentation Methods 0.000 claims abstract description 14
- 238000005273 aeration Methods 0.000 claims abstract description 12
- 239000011435 rock Substances 0.000 claims abstract description 3
- 238000005192 partition Methods 0.000 claims description 22
- 238000012856 packing Methods 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 12
- 239000010865 sewage Substances 0.000 description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 229910052875 vesuvianite Inorganic materials 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000011165 process development Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000001179 sorption measurement 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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- Biological Treatment Of Waste Water (AREA)
Abstract
A square biological aerated filter with a built-in sedimentation zone comprises a soft filler zone and a particle filler zone, wherein the particle filler zone is positioned at two sides of the soft filler zone, and the lower part of the particle filler zone is sequentially provided with a mud-water separation zone, a clear water zone and a sludge zone; the soft filler area is hung with soft fillers, and the particle filler area is filled with particle fillers such as volcanic rocks. The utility model can effectively reduce the operation units of the aeration biological filter process, reduce the occupied area of the process and reduce the investment cost.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a square biological aerated filter with a built-in settling zone.
Background
The aeration biological filter tank is a common biological sewage treatment process, biological fillers are filled in a reactor, the reactor is in an aerobic state under the action of aeration, and a biological film is formed on the surfaces of the fillers in the long-term operation process. When the sewage contacts with the filler and the surface biological film, the biological degradation, the microbial flocculation, the physical adsorption and interception of the filler and the graded predation of the reactor along the depth direction of the filter bed are fully exerted, and the effective removal of organic matters, ammonia nitrogen and suspended matters is realized. Compared with the activated sludge process, the biological aerated filter has the advantages of high organic load, small occupied area, low investment and the like, so the biological aerated filter is widely applied to the field of sewage treatment.
In the operation process of the biological aerated filter, a part of sludge is generated due to aging and replacement and shedding of a biological membrane, and a sedimentation tank is generally arranged at the rear end of the biological aerated filter for removing part of suspended matters in the part of sludge and sewage. The arrangement of the sedimentation tank not only increases the investment cost of the sewage treatment process, but also increases the occupied area of the sewage treatment process, so that the research and development of the aeration biological filter and sedimentation tank integrated device becomes a new direction for the process development.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a square biological aerated filter with a built-in sedimentation zone, which can effectively reduce the operation units of the biological aerated filter process, reduce the occupied area of the process and reduce the investment cost.
In order to realize the purpose, the utility model discloses a technical scheme is:
a square biological aerated filter with a built-in sedimentation zone comprises a soft filler zone 1 and a particle filler zone 2, wherein the particle filler zone 2 is positioned at two sides of the soft filler zone 1, and the lower part of the particle filler zone 2 is sequentially provided with a mud-water separation zone 3, a clear water zone 4 and a sludge zone 5;
the soft filler area 1 is hung with soft fillers 12, and the particle filler area 2 is filled with particle fillers 13 such as vesuvianite and the like.
The soft filler area 1, the particle filler area 2, the mud-water separation area 3 and the sludge area 5 are separated by a partition plate 11, and the partition plate 11 is a waterproof partition plate.
The particle filler area 2 and the mud-water separation area 3 are separated by a partition plate 7, and the partition plate 7 is provided with water passing holes.
The mud-water separation zone 3 and the clear water zone 4 are separated by a partition plate 6, the partition plate 6 is a waterproof partition plate, the included angle between the partition plate 6 and the horizontal plane is 30-60 degrees, and the upper end of the partition plate 6 is arranged at the joint of the particle filler zone 2 and the mud-water separation zone 3.
The bottom of the soft filler area 1 is provided with a water inlet pipe 9.
And an aeration system 8 is arranged at the bottom of the soft filler area 1 and at the upper part of the water inlet pipe 9.
The top parts of the clear water areas 4 on the two sides are respectively provided with a water outlet pipe 10, and the bottom parts of the sludge discharge pipes 14 on the two sides are respectively provided with a sludge discharge pipe 14.
The utility model has the advantages that:
the sewage firstly passes through the soft filler area, and the depth of the soft filler area is deeper, so that the oxygenation efficiency of the bottom aeration system can be improved. Due to the bottom aeration effect, sludge generated in the soft filler region flows into the particle filler region, and suspended matters in sewage and a biological film falling off from the soft filler can be removed by the particle filler through the filtering and adsorbing effects. The depth of the particle filler area is less than that of the soft filler area, so that the residual dissolved oxygen in the effluent of the soft filler area can be fully utilized. And the effluent of the particle filler area enters a mud-water separation area for solid-liquid separation. The sludge-water separation zone and the clear water zone are positioned at the lower part of the particle filler zone to form the integration of the biological filter and the sedimentation tank, and the device has the dual functions of biodegradation and sludge sedimentation. The sedimentation zone is arranged in the biological aerated filter, so that the sedimentation tank can be prevented from being independently built, and the floor area and the investment cost of the device can be saved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a plan view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples.
As shown in figures 1 and 2, the device adopts a square structure, the middle part is a soft filler area 1, the upper parts of two sides of the soft filler area 1 are particle filler areas 2, and the lower parts of two sides are a mud-water separation area 3, a clear water area 4 and a sludge area 5. The soft filler region 1 is hung with soft fillers 12, and the particle filler region 2 is filled with particle fillers 13 such as volcanic rocks.
The soft filler area 1 is separated from the particle filler area 2, the mud-water separation area 3 and the sludge area 5 by a waterproof clapboard 11. The particle filler area 2 and the mud-water separation area 3 are separated by a partition plate 7, and a water passing hole is formed in the partition plate.
The mud-water separation zone 3 and the clear water zone 4 are separated by a watertight baffle plate 6 which forms an angle of 30-60 degrees with the horizontal plane. The water inlet pipe 14 and the aeration system 8 are positioned at the bottom of the soft filler area 1, and the aeration system 8 is positioned at the upper part of the water inlet pipe 9.
Two water outlet pipes 10 and two sludge discharge pipes 14 are respectively positioned at the top of the clear water area 4 and the bottom of the sludge area 14.
The overall height of the particle filler area 2, the sludge-water separation area 3, the clear water area 4 and the sludge area 5 is the same as that of the soft filler area 1.
The utility model discloses a theory of operation:
sewage enters the device from the bottom of the soft filler area 1 through a water inlet pipe 9 and flows upwards through the soft filler area 1. The aeration system 8 aerates the soft filler zone 1 to ensure that the dissolved oxygen concentration of the soft filler zone 1 is more than 2mg/L and the soft filler zone is in an aerobic state. The surface of the soft filler 12 can form a biological film in the long-term operation process, and sewage is purified through the metabolic activity of microorganisms when flowing through the biological film. The biological film fallen off by the soft filler 12 enters the granular filler area 2 along with the water flow under the action of bottom aeration. Sewage flows downwards through the particle filler area 2, the particle filler area 2 is filled with particle fillers 13 such as vesuvianite and the like, in the long-term operation process, a biological film is formed on the surface of the particle fillers 13, and microorganisms oxidize and remove organic matters, ammonia nitrogen and the like in the sewage by using dissolved oxygen remained in the effluent of the soft filler area 1. Meanwhile, the particle filler 13 can adsorb and retain suspended matters in sewage and a biological film falling off from the surface of the soft filler 12 by utilizing the larger specific surface area of the particle filler. The water flows into the mud-water separation area 3 through the perforated clapboard 7, and the mud-water separation area 3 is separated from the clean water area 4 through the clapboard 6. The biological film and suspended matters in the water are deposited on the clapboard 6 by the gravity action and slide to the sludge area 5, and the sludge is discharged from the reaction device by the sludge discharge pipe 14. Clear water bypasses the clapboard 6 to enter the clear water area 4 and is discharged out of the system through the water outlet pipe 10.
Claims (7)
1. A square biological aerated filter with a built-in sedimentation zone is characterized by comprising a soft filler zone (1) and a particle filler zone (2), wherein the particle filler zone (2) is positioned at two sides of the soft filler zone (1), and the lower part of the particle filler zone (2) is sequentially provided with a mud-water separation zone (3), a clear water zone (4) and a sludge zone (5);
the soft filler area (1) is hung with soft fillers (12), and the particle filler area (2) is filled with volcanic rock particle fillers (13).
2. A square biological aerated filter with a built-in sedimentation zone according to claim 1, wherein the soft filler zone (1) is separated from the granular filler zone (2), the sludge-water separation zone (3) and the sludge zone (5) by a partition plate (11), and the partition plate (11) is a water-tight partition plate.
3. A square biological aerated filter with a built-in sedimentation zone according to claim 1, wherein the granular packing zone (2) and the sludge-water separation zone (3) are separated by a partition plate (7), and the partition plate (7) is provided with water passing holes.
4. A square biological aerated filter with a built-in sedimentation zone according to claim 1, wherein the sludge-water separation zone (3) and the clear water zone (4) are separated by a partition plate (6), the partition plate (6) is a water-tight partition plate, the angle between the partition plate (6) and the horizontal plane is 30-60 degrees, and the upper end of the partition plate (6) is arranged at the joint of the granular packing zone (2) and the sludge-water separation zone (3).
5. A square biological aerated filter with built-in settling zone according to claim 1, wherein the bottom of the soft filler zone (1) is provided with a water inlet pipe (9).
6. A square biological aerated filter with built-in settling zone according to claim 5, wherein the aeration system (8) is arranged at the bottom of the soft filler zone (1) and at the upper part of the water inlet pipe (9).
7. A square biological aerated filter with built-in settling zone according to claim 1, wherein the top of the clean water zone (4) at both sides is provided with a water outlet pipe (10), and the bottom of the sludge discharge pipe (14) at both sides is provided with a sludge discharge pipe (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021482025.7U CN213171645U (en) | 2020-07-23 | 2020-07-23 | Square biological aerated filter with built-in settling zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021482025.7U CN213171645U (en) | 2020-07-23 | 2020-07-23 | Square biological aerated filter with built-in settling zone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213171645U true CN213171645U (en) | 2021-05-11 |
Family
ID=75795459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021482025.7U Active CN213171645U (en) | 2020-07-23 | 2020-07-23 | Square biological aerated filter with built-in settling zone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213171645U (en) |
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2020
- 2020-07-23 CN CN202021482025.7U patent/CN213171645U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231120 Address after: 710100 Room 12001, Building 9, Lanqiao International City, Daxue Road, Chang'an District, Xi'an City, Shaanxi Province Patentee after: Xi'an Baichuan Environmental Protection Technology Co.,Ltd. Address before: 710021 Shaanxi province Xi'an Weiyang university campus of Shaanxi University of Science and Technology Patentee before: SHAANXI University OF SCIENCE & TECHNOLOGY |
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| TR01 | Transfer of patent right |