CN209906449U - Activated sludge backflow sewage treatment device - Google Patents
Activated sludge backflow sewage treatment device Download PDFInfo
- Publication number
- CN209906449U CN209906449U CN201920646882.7U CN201920646882U CN209906449U CN 209906449 U CN209906449 U CN 209906449U CN 201920646882 U CN201920646882 U CN 201920646882U CN 209906449 U CN209906449 U CN 209906449U
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- Prior art keywords
- mud
- pond
- water separation
- separation unit
- sludge
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Abstract
The utility model discloses an activated sludge backflow sewage treatment plant, including oxygen deficiency pond, good oxygen pond and disinfection pond, oxygen deficiency bottom of the pool inside wall install underwater propulsor, oxygen deficiency pond and good oxygen pond between be equipped with first mud-water separation unit, good oxygen pond and disinfection pond between be equipped with second mud-water separation unit, good oxygen pond below be equipped with the fan, good oxygen pond in be equipped with the aeration equipment of connecting the fan, aeration equipment on evenly distributed have the micropore aerator of orientation below, second mud-water separation unit bottom install the mud pipe, the mud pipe other end be connected to first mud-water separation unit bottom, the mud pipe on be equipped with the sludge pump. Compared with the prior art, the utility model the advantage lie in: solves the problem of sludge backflow and prolongs the service life of the microporous aerator.
Description
Technical Field
The utility model relates to the technical field of sewage treatment devices, in particular to an activated sludge return sewage treatment device.
Background
In sewage treatment, connect the anterior segment anoxic section and the posterior segment aerobic section in series, heterotrophic bacteria hydrolyze suspended pollutants such as starch, fiber, carbohydrate and the like and soluble organic matters in sewage into organic acid in the anoxic section, so that macromolecular organic matters are decomposed into micromolecular organic matters, insoluble organic matters are converted into soluble organic matters, when products after anoxic hydrolysis enter an aerobic tank for aerobic treatment, the biodegradability and oxygen efficiency of sewage can be improved, in the aerobic section, the organic matters are removed under the action of aerobic microorganisms, but the outlet direction of a microporous aerator in the prior art is upward, so that the blockage of the microporous aerator can be caused due to sludge, and the use is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the technical defects, providing an activated sludge return sewage treatment device, solving the sludge return problem and prolonging the service life of a microporous aerator.
In order to solve the technical problem, the utility model provides a technical scheme does: an activated sludge backflow sewage treatment device comprises an anoxic tank, an aerobic tank and a disinfection tank, wherein sludge is arranged in the anoxic tank, one side of the anoxic tank is connected with a water inlet pipe, the inner side wall of the bottom of the anoxic tank is provided with a submersible propeller, a first mud-water separation unit is arranged between the anoxic tank and the aerobic tank, a second mud-water separation unit is arranged between the aerobic tank and the disinfection tank, the first mud-water separation unit and the second mud-water separation unit respectively comprise a front partition plate and a rear partition plate, the bottom of the front partition plate is provided with a water inlet, the bottom of the rear partition plate is provided with an inclined plate connected with the front partition plate, the rear partition plate is provided with a filter hole, the filter hole is provided with a microporous filter membrane, a fan is arranged below the aerobic tank, the aerobic tank is internally provided with an aeration main pipeline connected with the fan, the aeration main pipeline is, the aeration branch pipelines are arranged at the upper part and the bottom of the aerobic tank, microporous aerators facing downwards are uniformly distributed on the aeration branch pipelines, a sludge discharge pipe is installed at the bottom of the second sludge-water separation unit, the other end of the sludge discharge pipe is connected to the bottom of the first sludge-water separation unit, a sludge pump is arranged on the sludge discharge pipe, and a water outlet pipe is connected to the disinfection tank.
Compared with the prior art, the utility model the advantage lie in: the utility model discloses a mud-water separation technique, it is complicated to solve traditional technology structure, the problem of mud backward flow, through at the oxygen deficiency pond, use the mud-water separation unit between the good oxygen pond, make mud slide back to in the pond from mud-water reposition of redundant personnel unit, the mud loss in the pond has been prevented, and establish the mud pipe at the bottom of the pool, discharge mud to the oxygen deficiency pond through the mud pump, avoid extravagant, set up aeration branch pipeline and the micropore aerator towards the below in the upper portion and the bottom of good oxygen pond, can avoid mud to block up, the life of extension aerator, and can even aeration.
As an improvement, the submersible propeller is a low-speed stirrer.
As an improvement, an included angle of 60 degrees is formed between the inclined plate and the rear partition plate.
As an improvement, the anoxic tank, the aerobic tank and the disinfection tank are all box body structures welded by stainless steel plates.
As an improvement, the sloping plates of the first mud-water separation unit and the second mud-water separation unit are respectively provided with a mud scraper, and the mud scrapers are movably connected with supporting rods.
Drawings
FIG. 1 is a schematic structural view of an activated sludge reflux sewage treatment device of the present invention.
As shown in the figure: 1. the anaerobic tank, 2, the aerobic tank, 3, the disinfection tank, 4, sludge, 5, a water inlet pipe, 6, a submersible propeller, 7, a first mud-water separation unit, 8, a second mud-water separation unit, 9, a front partition plate, 10, a rear partition plate, 11, an inclined plate, 12, a fan, 13, an aeration main pipeline, 14, an aeration branch pipeline, 15, a sludge discharge pipe, 16, a sludge pump, 17, a water outlet pipe, 18, a microporous aerator, 19, a sludge scraper, 20 and a support rod.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides an activated sludge backflow sewage treatment device, includes oxygen deficiency pond 1, good oxygen pond 2 and disinfection pond 3, oxygen deficiency pond 1 in be equipped with mud 4, 1 one side in oxygen deficiency pond connect inlet tube 5, 1 bottom inside wall in oxygen deficiency pond install diving propeller 6, oxygen deficiency pond 1 and good oxygen pond 2 between be equipped with first mud-water separation unit 7, good oxygen pond 2 and disinfection pond 3 between be equipped with second mud-water separation unit 8, first mud-water separation unit 7 and second mud-water separation unit 8 all include preceding division board 9 and back division board 10, preceding division board 9 bottom be equipped with the water inlet, back division board 10 bottom be equipped with the swash plate 11 of connecting preceding division board 9, back division board 10 on be equipped with the filtration pore, the filtration pore on be equipped with millipore filter, good oxygen pond 2 below be equipped with fan 12, the aerobic tank 2 is internally provided with an aeration main pipeline 13 connected with a fan 12, the aeration main pipeline 13 is connected with an aeration branch pipeline 14, the aeration branch pipelines 14 are arranged at the upper part and the bottom of the aerobic tank 2, microporous aerators 18 facing downwards are uniformly distributed on the aeration branch pipelines 14, a sludge discharge pipe 15 is arranged at the bottom of the second sludge-water separation unit 8, the other end of the sludge discharge pipe 15 is connected to the bottom of the first sludge-water separation unit 7, a sludge pump 16 is arranged on the sludge discharge pipe 15, and a water outlet pipe 17 is connected on the disinfection tank 3.
The submersible propeller 6 is a low-speed stirrer.
An included angle of 60 degrees is formed between the inclined plate 11 and the rear partition plate 10.
The anoxic tank 1, the aerobic tank 2 and the disinfection tank 3 are all box body structures welded by stainless steel plates.
The sloping plates 11 of the first mud-water separation unit 7 and the second mud-water separation unit 8 are respectively provided with a mud scraper 19, and the mud scraper 19 is movably connected with a support rod 20.
When the utility model is implemented specifically, the sewage after pretreatment enters the anoxic tank, the preliminary biodegradation and denitrification are carried out in the anoxic tank, the submersible propeller is arranged at the bottom in the anoxic tank for stirring, so that the sewage and the sludge in the anoxic tank are in full contact, under the anoxic condition, the metabolic activity of various anaerobic or facultative anaerobic microorganisms is utilized to degrade organic matters in the sewage, the sewage flows to the aerobic tank through the first mud-water separation unit, under the gravity settling action, the sludge slides back to the anoxic tank from the inclined plate to prevent the loss of the active sludge in the anoxic tank, the air is introduced into the aerobic tank through the fan in the aerobic tank, the aeration device arranged in the aerobic tank releases micro-bubbles to meet the requirement of aerobic bacteria on oxygen, the sewage flows to the disinfection tank from the aerobic tank through the second mud-water separation unit, under the gravity settling action, the sludge slides back to the aerobic tank from the inclined plate, redundant sludge is discharged into the anoxic tank through the sludge discharge pipe under the action of the sludge pump, sewage enters the disinfection tank through the second sludge-water separation unit, and the sewage is discharged after being sterilized and disinfected through the water outlet pipe.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (5)
1. The utility model provides an activated sludge return sewage treatment plant which characterized in that: including oxygen deficiency pond (1), good oxygen pond (2) and disinfection pond (3), oxygen deficiency pond (1) in be equipped with mud (4), oxygen deficiency pond (1) one side connect inlet tube (5), oxygen deficiency pond (1) bottom inside wall install underwater propulsor (6), oxygen deficiency pond (1) and good oxygen pond (2) between be equipped with first mud-water separation unit (7), good oxygen pond (2) and disinfection pond (3) between be equipped with second mud-water separation unit (8), first mud-water separation unit (7) and second mud-water separation unit (8) all include preceding division board (9) and back division board (10), preceding division board (9) bottom be equipped with the water inlet, back division board (10) bottom be equipped with swash plate (11) of division board (9) before the connection, back division board (10) on be equipped with the filtration pore, the sewage treatment device is characterized in that a microporous filter membrane is arranged on the filter hole, a fan (12) is arranged below the aerobic tank (2), an aeration main pipeline (13) connected with the fan (12) is arranged in the aerobic tank (2), the aeration main pipeline (13) is connected with an aeration branch pipeline (14), the aeration branch pipeline (14) is arranged at the upper part and the bottom of the aerobic tank (2), microporous aerators (18) facing downwards are uniformly distributed on the aeration branch pipeline (14), a sludge discharge pipe (15) is installed at the bottom of the second sludge-water separation unit (8), the other end of the sludge discharge pipe (15) is connected to the bottom of the first sludge-water separation unit (7), a sludge pump (16) is arranged on the sludge discharge pipe (15), and a water outlet pipe (17) is connected to the disinfection tank (3).
2. The activated sludge recirculation sewage treatment plant of claim 1, wherein: the submersible propeller (6) is a low-speed stirrer.
3. The activated sludge recirculation sewage treatment plant of claim 1, wherein: an included angle of 60 degrees is formed between the inclined plate (11) and the rear partition plate (10).
4. The activated sludge recirculation sewage treatment plant of claim 1, wherein: the anoxic tank (1), the aerobic tank (2) and the disinfection tank (3) are all box body structures welded by stainless steel plates.
5. The activated sludge recirculation sewage treatment plant of claim 1, wherein: the mud-water separation device is characterized in that the sloping plates (11) of the first mud-water separation unit (7) and the second mud-water separation unit (8) are respectively provided with a mud scraper (19), and the mud scraper (19) is movably connected with a support rod (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920646882.7U CN209906449U (en) | 2019-05-08 | 2019-05-08 | Activated sludge backflow sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920646882.7U CN209906449U (en) | 2019-05-08 | 2019-05-08 | Activated sludge backflow sewage treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209906449U true CN209906449U (en) | 2020-01-07 |
Family
ID=69047164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920646882.7U Expired - Fee Related CN209906449U (en) | 2019-05-08 | 2019-05-08 | Activated sludge backflow sewage treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209906449U (en) |
-
2019
- 2019-05-08 CN CN201920646882.7U patent/CN209906449U/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: 20200107 |