CN113582466A - Built-in precipitation type aerobic bioreactor - Google Patents
Built-in precipitation type aerobic bioreactor Download PDFInfo
- Publication number
- CN113582466A CN113582466A CN202110962930.5A CN202110962930A CN113582466A CN 113582466 A CN113582466 A CN 113582466A CN 202110962930 A CN202110962930 A CN 202110962930A CN 113582466 A CN113582466 A CN 113582466A
- Authority
- CN
- China
- Prior art keywords
- water
- area
- sedimentation
- aerobic
- gas separation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001556 precipitation Methods 0.000 title claims abstract description 9
- 238000004062 sedimentation Methods 0.000 claims abstract description 43
- 238000000926 separation method Methods 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000005192 partition Methods 0.000 claims abstract description 11
- 239000010802 sludge Substances 0.000 claims description 21
- 238000005273 aeration Methods 0.000 claims description 15
- 239000013049 sediment Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000010865 sewage Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010992 reflux Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
Abstract
The invention provides a built-in sedimentation type aerobic bioreactor which comprises a pool body consisting of pool walls, wherein one side area of the pool body is an aerobic area, the other side area of the pool body is a sedimentation area, a partition plate is arranged between the aerobic area and the sedimentation area, the partition plate part separates the aerobic area and the sedimentation area, a plurality of mud-water-gas separation devices are arranged in parallel in the sedimentation area, and a buffer area is arranged below the mud-water-gas separation devices. The invention arranges the sedimentation tank in the bioreactor, and realizes the sedimentation function through the mud-water-gas separation device, thereby saving the occupied area, saving the mud reflux device and facilities, and being particularly suitable for small sewage treatment facilities. The internal precipitation type aerobic bioreactor can be flexibly arranged according to field conditions, is easy to process and manufacture, can be effectively connected with other process sections, and meets different water outlet requirements.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and relates to a bioreactor, in particular to a built-in sedimentation type aerobic bioreactor which is easy to process, saves occupied land, does not need sludge backflow and reduces sludge backflow facilities.
Background
With the development of society and the emphasis on environmental protection, sewage treatment has been vigorously developed as one of the core means for controlling water pollution, and various treatment technologies and facilities have been developed and applied. Among them, aerobic biological treatment is widely used because of its advantages such as low operating cost and high adaptability. Aerobic organisms are fully contacted with sewage by utilizing aerobic microorganisms (activated sludge for short), so that pollutants in the sewage are removed through the effects of adsorption, degradation and the like, then sludge-water separation is carried out through technologies such as precipitation and the like, the supernatant reaches the standard and is discharged, partial reflux of the sludge is needed to keep the concentration of the activated sludge in a biological system, and the residual sludge is directly discharged and treated.
The conventional aerobic biological treatment system comprises a biological reaction tank and a sedimentation tank, which are generally used as two independent units, wherein sludge at the bottom of the sedimentation tank can flow back to the biological reaction tank at the front end only by certain power, such as a reflux pump, air stripping and the like.
Disclosure of Invention
The invention aims to solve the defects that the existing aerobic biological treatment system needs a reaction tank and a sedimentation tank which are arranged independently, and needs a sludge backflow device and facilities, so that the aerobic biological treatment system occupies more land and has more facilities, and provides a built-in sedimentation type aerobic biological reactor which reduces the land occupation and saves the conventional backflow facilities.
In order to achieve the purpose, the invention adopts the following technical scheme:
a built-in sedimentation type aerobic bioreactor comprises a tank body consisting of tank walls, wherein one side area of the tank body is an aerobic area, the other side area of the tank body is a sedimentation area, a partition plate is arranged between the aerobic area and the sedimentation area, the aerobic area and the sedimentation area are separated by the partition plate part, the sedimentation area is provided with a plurality of parallel sludge-water-gas separation devices, and a buffer area is arranged below the sludge-water-gas separation devices;
wherein, the area and the depth of the settling zone are calculated according to the following formula:
a: area of settling zone, m2；
Q: amount of treated Water, m2/h；
H: total height of the settling zone, m;
v: the rising flow rate of the sediment is m/h;
t: settling time, h;
h: effective depth of precipitation, m;
h1: protection height, m;
h2: the vertical height m of the mud-water-gas separation device;
h3: buffer height, m.
In the technical scheme, the sedimentation tank is arranged in the bioreactor, and the sedimentation function is realized through the mud-water-gas separation device, so that the occupied area is saved, a mud reflux device and facilities are also saved, and the sedimentation tank is particularly suitable for small sewage treatment facilities.
The internal precipitation type aerobic bioreactor can be flexibly arranged according to field conditions and is easy to process and manufacture.
The specifications of the manufactured reactor, an aeration system, a water inlet and outlet pipe, a water collecting tank, a sludge discharge pipe and the like are designed according to the treated water quantity and the treated water quality and the design specification, and for urban sewage treatment, the aerobic biological reaction time is generally 6-12h, and on the basis, the volume of a settling zone needs to be increased to be used as the total volume of the built-in aerobic biological reactor.
The partition board is arranged according to the area of the sedimentation zone to separate the aerobic zone from the sedimentation zone, and the vertical depth of the partition board is h + h2m, the inclined plate at the bottom of the clapboard has an inclination angle of 60-75 degrees and a length of h2And calculating the height and the inclination angle.
As a preferable scheme of the invention, the mud-water-gas separation device comprises a long plate and a short plate which are obliquely arranged, an included angle alpha between extension lines of the long plate and the short plate is 30-60 degrees, the long plate is inserted below the short plate of the adjacent mud-water-gas separation device, the distance between the edge projection of the long plate and the edge projection of the short plate of the adjacent mud-water-gas separation device is 30-100mm, and the distance between the short plate and the long plate of the adjacent mud-water-gas separation device is 60-100 mm.
In the technical scheme, one side of the mud-water-gas separation device is a long plate, the other side of the mud-water-gas separation device is a short plate, the long plate is required to go deep into the lower part of the short plate of the other group of mud-water-gas separation device, the distance between the edge projection of the long plate and the edge projection of the short plate is 30-100mm, air is prevented from entering a settling zone, and meanwhile, the distance between the short plate and the long plate of the other group of mud-water-gas separation device is required to be 60-100mm, so that water can conveniently enter.
As a preferable scheme of the invention, the top of the mud-water-gas separation device is provided with an air outlet pipe, the pipe diameter of the water outlet pipe is 45-55mm, and the water outlet pipe is 20mm above the water surface.
In the technical scheme, the air outlet pipes are arranged at the top corners, the pipe diameters of the air outlet pipes are about 50mm, the quantity of the air outlet pipes is calculated according to the aeration quantity at the bottom of the settling zone and the flow velocity in the pipes is 4-5m/s, and the air outlet pipes are higher than the water surface by more than 20 mm.
As a preferable scheme of the invention, the wall of the sedimentation zone is provided with a pool wall guide plate which is matched with a long plate of the muddy water and gas separation device close to the pool wall.
In the technical scheme, the mud-water-gas separation device close to one side of the pool wall is manufactured by using the pool wall guide plate, the included angle between the pool wall guide plate and the pool wall is ensured to be 55-75 degrees, and other requirements are the same as those of the middle mud-water-gas separation device.
As a preferable scheme of the invention, the lower part of the tank body is provided with an aeration system, the aeration system passes through the aerobic zone and the sedimentation zone, and the aeration system comprises an air pipe and an aeration head.
As a preferable scheme of the invention, the bottom of the pool wall of the settling zone is provided with a sludge discharge pipe.
As a preferable scheme of the invention, the upper end of the pool wall at one side of the aerobic zone is provided with a water inlet pipe.
As a preferable scheme of the invention, the upper end of the pool wall on one side of the settling zone is provided with a water collecting tank.
As a preferable scheme of the invention, a water outlet pipe is arranged on the water collecting tank.
In a preferable scheme of the invention, the material of the tank wall comprises UPVC, and the material of the partition plate, the tank wall baffle plate and the mud-water-gas separation device comprises stainless steel or pp material.
Compared with the prior art, the invention has the following beneficial effects:
1) the sedimentation zone is directly arranged in the aerobic zone, so that the occupied area is saved, the sludge backflow is not needed, and the sludge backflow facility is reduced;
2) the invention can be flexibly set according to the field conditions and is easy to process and manufacture;
3) the internal precipitation type aerobic bioreactor can be effectively connected with other process sections, and meets different water outlet requirements.
Drawings
FIG. 1 is a schematic of the present invention.
Fig. 2 is a side view of the present invention.
FIG. 3 is a schematic view of the mud-water separating apparatus of the present invention.
In the figure, 1, a tank body; 2. a separator plate; 3. an air outlet pipe; 4. a mud-water-gas separation device; 41. a long plate; 42. a short plate; 5. an aeration system; 6. a sludge discharge pipe; 7. a water inlet pipe; 8. a water outlet pipe; 9. a water collection tank; 10. a pool wall baffle; 11. an aerobic zone; 12. a settling zone; 13 buffer area.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, the present invention provides a built-in sedimentation type aerobic bioreactor, which comprises a tank body 1 composed of tank walls, wherein one side region of the tank body 1 is an aerobic region 11, the other side region is a sedimentation region 12, a partition plate 2 is arranged between the aerobic region 11 and the sedimentation region 12, the aerobic region 11 and the sedimentation region 12 are separated by the partition plate 2, the sedimentation region 12 is provided with a plurality of parallel sludge-water-gas separation devices 4, and a buffer region 13 is arranged below the sludge-water-gas separation devices 4;
wherein, the area and the depth of the settling zone 12 are calculated according to the following formula:
a: area of settling zone, m2；
Q: amount of treated Water, m2/h；
H: total height of the settling zone, m;
v: the rising flow rate of the sediment is m/h;
t: settling time, h;
h: effective depth of precipitation, m;
h1: protection height, m;
h2: the vertical height m of the mud-water-gas separation device;
h3: buffer height, m.
Referring to fig. 3, the sludge-water-gas separating device 4 comprises a long plate 41 and a short plate 42 which are obliquely arranged, an included angle alpha between extension lines of the long plate 41 and the short plate 42 is 30-60 degrees, the long plate 41 is inserted below the short plate 42 of the adjacent sludge-water-gas separating device 4, the distance between the edge projection of the long plate 41 and the edge projection of the short plate 42 of the adjacent sludge-water-gas separating device 4 is 30-100mm, and the distance between the short plate 42 and the long plate 41 of the adjacent sludge-water-gas separating device 4 is 60-100 mm. The top of the mud-water-gas separating device 4 is provided with an air outlet pipe 3, the pipe diameter of the water outlet pipe 3 is 45-55mm, and the water outlet pipe 3 is higher than the water surface by more than 20 mm.
The wall of the sedimentation zone 13 is provided with a pool wall guide plate 10, the pool wall guide plate 10 is matched with a long plate 41 of the mud-water-gas separation device 4 close to the pool wall, the included angle between the pool wall guide plate 10 and the pool wall is ensured to be 55-75 degrees, and other requirements are the same as those of the middle mud-water-gas separation device 4.
The lower part of the tank body 1 is provided with an aeration system 5, the aeration system 5 passes through an aerobic zone 11 and a sedimentation zone 12, and the aeration system 5 comprises an air pipe and an aeration head; the bottom of the pool wall of the settling zone 12 is provided with a sludge discharge pipe 6; the upper end of the tank wall at one side of the aerobic zone 11 is provided with a water inlet pipe 7; the upper end of the pool wall at one side of the settling zone 12 is provided with a water collecting tank 9; the water collecting tank 9 is provided with a water outlet pipe 8.
The material of the tank wall comprises UPVC, and the materials of the baffle plate 2, the tank wall guide plate 10 and the sludge-water-gas separation device 4 comprise stainless steel or pp material.
Example 1:
the specification of a UPVC manufacturing reactor is 0.55 x 0.3 x 1.75m, wherein the area of a settling zone is 0.3 x 0.1m, the effective depth is 0.75m, the vertex angle of a separation plate is 30 degrees, the projection distance between a short plate and a long plate of a mud-water-gas separation device is 30mm, the distance between the bottom of the short plate and the long plate is 60mm, water inlet is 20L/h for operation, under the operation condition that the sludge concentration in the reactor is 2500mg/L, the average settling effluent SS is 18mg/L, the effect is basically the same as that of an independent settling tank, sludge backflow is not needed, and the sludge in an aerobic system is kept stable.
Example 2:
the specification of a UPVC manufacturing reactor is 0.55 x 0.3 x 1.75m, wherein the area of a settling zone is 0.3 x 0.1m, the effective depth is 0.75m, the vertex angle of a separation plate is 60 degrees, the projection distance between a short plate and a long plate of a mud-water-gas separation device is 100mm, the distance between the bottom of the short plate and the long plate is 100mm, water inlet is 20L/h for operation, under the operation condition that the sludge concentration in the reactor is 2500mg/L, the average settling effluent SS is 22mg/L, the effect is basically the same as that of an independent settling tank, sludge backflow is not needed, and the sludge in an aerobic system is kept stable.
The invention arranges the sedimentation tank in the bioreactor, and realizes the sedimentation function through the mud-water-gas separation device, thereby saving the occupied area, saving the mud reflux device and facilities, and being particularly suitable for small sewage treatment facilities.
While the invention has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that the foregoing and other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention. Those skilled in the art can make various changes, modifications and equivalent arrangements, which are equivalent to the embodiments of the present invention, without departing from the spirit and scope of the present invention, and which may be made by utilizing the techniques disclosed above; meanwhile, any changes, modifications and variations of the above-described embodiments, which are equivalent to those of the technical spirit of the present invention, are within the scope of the technical solution of the present invention.
Claims (10)
1. A built-in sedimentation type aerobic bioreactor is characterized by comprising a pool body consisting of pool walls, wherein one side area of the pool body is an aerobic area, the other side area of the pool body is a sedimentation area, a partition plate is arranged between the aerobic area and the sedimentation area, the partition plate part separates the aerobic area and the sedimentation area, the sedimentation area is provided with a plurality of parallel sludge-water-gas separation devices, and a buffer area is arranged below the sludge-water-gas separation devices;
wherein, the area and the depth of the settling zone are calculated according to the following formula:
a: area of settling zone, m2；
Q: amount of treated Water, m2/h；
H: total height of the settling zone, m;
v: the rising flow rate of the sediment is m/h;
t: settling time, h;
h: effective depth of precipitation, m;
h1: protection height, m;
h2: the vertical height m of the mud-water-gas separation device;
h3: buffer height, m.
2. The aerobic bioreactor with built-in sediment according to claim 1, wherein the mud-water-gas separation device comprises a long plate and a short plate which are obliquely arranged, the angle alpha between the extension lines of the long plate and the short plate is 30-60 degrees, the long plate is inserted below the short plate of the adjacent mud-water-gas separation device, the distance between the edge projection of the long plate and the edge projection of the short plate of the adjacent mud-water-gas separation device is 30-100mm, and the distance between the short plate and the long plate of the adjacent mud-water-gas separation device is 60-100 mm.
3. The aerobic bioreactor with built-in sediment according to claim 2, wherein the top of the mud-water-gas separation device is provided with an air outlet pipe, the diameter of the water outlet pipe is 45-55mm, and the water outlet pipe is 20mm above the water surface.
4. The aerobic bioreactor with built-in sediment according to claim 2, wherein the wall of the sedimentation zone is provided with a baffle plate, and the baffle plate is matched with the long plate of the mud-water-gas separation device close to the wall of the sedimentation zone.
5. The aerobic bioreactor with built-in sediment according to claim 1, wherein the lower part of the tank body is provided with an aeration system, the aeration system passes through the aerobic zone and the sedimentation zone, and the aeration system comprises an air pipe and an aeration head.
6. The aerobic bioreactor with built-in sediment according to claim 1, wherein the bottom of the wall of the sedimentation zone is provided with a sludge discharge pipe.
7. The aerobic bioreactor with built-in sediment according to claim 1, wherein the upper end of the wall of the tank on one side of the aerobic zone is provided with a water inlet pipe.
8. The aerobic bioreactor with built-in sediment according to claim 1, wherein the upper end of the tank wall at one side of the sediment zone is provided with a water collecting tank.
9. The aerobic bioreactor with built-in sediment according to claim 8, wherein the water collecting tank is provided with a water outlet pipe.
10. The internal settling aerobic bioreactor of claim 1, wherein the material of the tank wall comprises UPVC, and the material of the baffle plate, the tank wall baffle plate and the sludge-water-gas separation device comprises stainless steel or pp material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110962930.5A CN113582466A (en) | 2021-08-20 | 2021-08-20 | Built-in precipitation type aerobic bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110962930.5A CN113582466A (en) | 2021-08-20 | 2021-08-20 | Built-in precipitation type aerobic bioreactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113582466A true CN113582466A (en) | 2021-11-02 |
Family
ID=78238691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110962930.5A Pending CN113582466A (en) | 2021-08-20 | 2021-08-20 | Built-in precipitation type aerobic bioreactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113582466A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204607690U (en) * | 2015-04-28 | 2015-09-02 | 扬州大学 | Activated sludge reaction and equipment for separating liquid from solid |
| CN208856991U (en) * | 2018-09-07 | 2019-05-14 | 河北先达环保工程有限公司 | Anaerobic three-phase separator |
-
2021
- 2021-08-20 CN CN202110962930.5A patent/CN113582466A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204607690U (en) * | 2015-04-28 | 2015-09-02 | 扬州大学 | Activated sludge reaction and equipment for separating liquid from solid |
| CN208856991U (en) * | 2018-09-07 | 2019-05-14 | 河北先达环保工程有限公司 | Anaerobic three-phase separator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101323494A (en) | Carwash circulating water processing system | |
| CN204607690U (en) | Activated sludge reaction and equipment for separating liquid from solid | |
| CN101591118A (en) | Multifunctional general sewage treatment system | |
| CN201292263Y (en) | Vertical flow type aerobic gas float filter chamber | |
| CN204874025U (en) | A aeration biological fluidized bed device for high ammonia -nitrogen concentration waste water treatment | |
| CN205973977U (en) | Biological water treatment facilities of IBR | |
| CN213623746U (en) | Laboratory sewage treatment device with microbial treatment function | |
| CN206396017U (en) | A O O MBR combined sewage treatment systems | |
| CN102863075A (en) | External membrane bioreactor with self-suction jet nozzle aerating function | |
| CN113582466A (en) | Built-in precipitation type aerobic bioreactor | |
| CN201108760Y (en) | Highly effective tipping plate precipitating tank | |
| CN107162178B (en) | Full-mixing MBBR reactor | |
| CN111825269A (en) | Industrial wastewater advanced treatment system | |
| RU2709087C1 (en) | Waste water treatment plant | |
| CN209797614U (en) | Sewage treatment reactor | |
| CN207904090U (en) | A kind of sewage plant sewage-treatment plant | |
| CN207699288U (en) | A kind of vortex membrane bioreactor pollution control device | |
| JPS6154480B2 (en) | ||
| CN205099557U (en) | Multi -functional IBR synthesizes reactor | |
| CN111925022A (en) | Efficient sedimentation tank for underground mine | |
| CN105439382A (en) | Integral treatment apparatus of high-concentration organic matter wastewater | |
| CN111747559A (en) | Water body endogenous pollutant treatment system and treatment method | |
| CN107739087A (en) | One kind vortex membrane bioreactor pollution control device | |
| CN205575818U (en) | Sewage purifier | |
| CN213834951U (en) | Waste water treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211102 |
|
| RJ01 | Rejection of invention patent application after publication |