CN214990937U - Sewage treatment ecosystem with multistage aeration tank - Google Patents
Sewage treatment ecosystem with multistage aeration tank Download PDFInfo
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- CN214990937U CN214990937U CN202023068351.6U CN202023068351U CN214990937U CN 214990937 U CN214990937 U CN 214990937U CN 202023068351 U CN202023068351 U CN 202023068351U CN 214990937 U CN214990937 U CN 214990937U
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Abstract
The utility model discloses a sewage treatment ecosystem with a multistage aeration tank, which comprises a first-stage aeration tank and a second-stage aeration tank, wherein the first-stage aeration tank comprises an inner tank, an outer tank and a filtering tank which are of concentric circle structures, and the tank wall of the inner tank is provided with overflow holes; the secondary aeration tank comprises a descending area and an ascending area, a plurality of sewage inflow pipelines are laid at the top end of the descending area, the sewage inflow pipes are connected with a liquid outlet of the filter tank through an inflow header pipe, and a plurality of water inlet holes are arranged on the sewage inflow pipelines at intervals; the bottoms of the aeration branch pipes are connected with an aeration main pipe, and the aeration main pipe is connected with an oxygenation pump. The two-stage aeration structure of mechanical aeration and constructed wetland aeration is adopted, the survival pressure and the blockage rate of plants in the constructed wetland aeration are reduced, the sewage treatment effect is further improved, the energy consumption of sewage treatment is greatly reduced, and the operation of sewage treatment can be realized only by one booster pump and one oxygenation pump.
Description
Technical Field
The utility model particularly relates to a sewage treatment ecosystem with a multistage aeration tank.
Background
With the development of society, the requirements of human beings on the environment are gradually improved, the discharge standard of sewage is stricter, the technology for treating wastewater is continuously developed, and the treatment of domestic wastewater is moving from cities to villages and towns. Because sewage in villages and towns is wide in distribution and difficult to treat in a centralized mode, the existing sewage treatment process, particularly sewage treatment in an aeration tank, depends on scale effect and is high in energy consumption, if mechanical aeration is adopted independently, an aeration device with low power is difficult to realize aeration effect, and if artificial wetland aeration is adopted independently, plants and artificial wetland substrates lack artificial fine management, the survival rate of the plants is low, and the substrates are easy to block.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of the prior art, providing a sewage treatment ecosystem with a multistage aeration tank, which comprises a first-stage aeration tank and a second-stage aeration tank, wherein the first-stage aeration tank comprises an inner tank, an outer tank and a filter tank which are of concentric circle structures, the wall of the inner tank is provided with overflow holes, the bottom of the inner tank is provided with a stirring paddle and a liquid suction pipe, the liquid suction pipe is connected with a booster pump, the booster pump is connected with an ejector, the ejector is connected with an aeration plate, the aeration plate is arranged at the bottom of the outer tank, the bottom of the outer tank is communicated with the bottom of the filter tank through a water collecting pipe, the bottom of the filter tank is provided with a sludge discharge port, the upper part of the filter tank is provided with a liquid discharge port, the filter tank is internally provided with a filter screen, and the height of the filter screen is lower than that of the liquid discharge port;
the secondary aeration tank comprises a descending area and an ascending area, a plurality of sewage inflow pipelines are laid at the top end of the descending area, the sewage inflow pipes are connected with a liquid outlet of the filter tank through an inflow header pipe, and a plurality of water inlet holes are arranged on the sewage inflow pipelines at intervals; a semi-closed partition plate is arranged between the ascending region and the descending region, the semi-closed partition plate separates the upper parts of the ascending region and the descending region, and the lower part between the ascending region and the descending region freely circulates; the upper end of the ascending area is provided with an upper drainage port, and the bottom end of the ascending area is provided with a lower drainage port; a plurality of aeration branch pipes are vertically arranged in the ascending area and the descending area, a plurality of aeration openings are formed in the aeration branch pipes, the bottoms of the aeration branch pipes are connected with an aeration main pipe, and the aeration main pipe is connected with an oxygenation pump.
Furthermore, the ejector comprises a liquid inlet pipe, an air inlet pipe and a mixed liquid nozzle, the tail end of the liquid inlet pipe is connected with a water outlet pipe of the booster pump, a jet orifice is arranged at the head of the liquid inlet pipe and extends into the tail of the mixed liquid nozzle, and the air inlet pipe is arranged on the side wall of the mixed liquid nozzle.
Furthermore, the air inlet pipe is connected with the variable frequency fan.
Further, the height of the ascending region is lower than that of the descending region.
Furthermore, the ascending area and the descending area are filled with matrix fillers.
Furthermore, emergent aquatic herbaceous plants are planted on the ascending region and the descending region.
Furthermore, the bottom of the outer pool is an aerobic zone.
Furthermore, the bottom of the inner tank is an anaerobic zone, and the upper part of the inner tank is an anoxic zone.
Has the advantages that: the utility model discloses in, adopt the two-stage aeration structure of mechanical aeration and constructed wetland aeration, reduced constructed wetland aeration's plant survival pressure and jam rate, further improved the treatment effect to sewage, reduced sewage treatment's energy consumption by a wide margin, only need a booster pump and an oxygenation pump can realize sewage treatment's operation.
The mechanical aeration adopts a structure of an inner tank and an outer tank, after sewage is introduced into the inner tank body, phosphorus is released continuously by phosphorus releasing bacteria in an anaerobic zone of the inner tank and is input into an aerobic zone of the outer tank through a booster pump and an ejector, phosphorus is absorbed continuously by phosphorus accumulating bacteria in the aerobic zone, and phosphorus removal is realized; meanwhile, nitrifying bacteria in the aerobic zone convert nitrate nitrogen, the water level of the outer tank enters the inner tank when reaching the overflow hole, denitrification is carried out at the anoxic zone, nitrogen removal is realized, and a better mechanical aeration effect is achieved after circulation for many times;
the artificial wetland aeration, sewage from the sewage influent stream pipeline inflow, through the inlet opening inflow downgoing district, under the effect of gravity, rivers are from the upper reaches to the lower in downgoing district, receive the separation effect of semi-closed baffle, and rivers only can flow into the upgoing district from the below, make rivers from the lower diffusion to the top through matrix filler, and the rivers that overflow are discharged through going up the drain hole, under the effect of aeration branch pipe, fully realize aeration scrubbing.
Drawings
FIG. 1 is a schematic diagram of a sewage treatment ecosystem having a multi-stage aeration tank;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
in the figure: 1. the aeration device comprises a primary aeration tank, 11, an inner tank, 12, an outer tank, 13, a filter tank, 14, overflow holes, 15, a stirring paddle, 16, a liquid pumping pipe, 17, an aeration plate, 18, a water collecting pipe, 19, a sludge discharge port, 20, a filter screen, 2, a liquid discharge port, 3, a booster pump, 4, an ejector, 5, a secondary aeration tank, 51, a descending zone, 52, an ascending zone, 53, a sewage inflow pipeline, 54, a water inlet, 55, a semi-closed partition plate, 56, an upper water discharge port, 57, a lower water discharge port, 58, aeration branch pipes, 59, an aeration port, 60, an aeration main pipe, 61, an oxygenation pump, 7 and a variable frequency fan.
Detailed Description
In order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.
As shown in the figures 1-2, the sewage treatment ecosystem comprises a multi-stage aeration tank, which comprises a first-stage aeration tank 1 and a second-stage aeration tank 5, the first-stage aeration tank 1 comprises an inner tank 11, an outer tank 12 and a filter tank 13 which are in concentric circle structures, an overflow hole 14 is arranged on the wall of the inner tank 11, a stirring paddle 15 and a liquid pumping pipe 16 are arranged at the bottom of the inner tank, the liquid extracting pipe is connected with a booster pump 3, the booster pump 3 is connected with an ejector 4, the ejector 4 is connected with an aeration plate 17, the aeration plate 2 is arranged at the bottom of the outer tank 12, the bottom of the outer tank 12 is communicated with the bottom of the filtering tank 13 through a water collecting pipe 18, the bottom of the filtering tank 13 is provided with a sludge discharge port 19, the upper part of the filtering tank 13 is provided with a liquid discharge port 2, a filtering net 20 is arranged in the filtering tank, and the height of the filtering net 20 is lower than that of the liquid discharge port 2; the sewage inflow pipe is connected with the liquid outlet of the filter tank through the inflow main pipe
The secondary aeration tank 5 comprises a descending area 51 and an ascending area 52, a plurality of sewage inflow pipelines 53 are laid at the top end of the descending area 51, and a plurality of water inlet holes 54 are arranged on the sewage inflow pipelines 53 at intervals; a semi-closed partition plate 55 is arranged between the ascending region 52 and the descending region 51, the semi-closed partition plate 55 separates the ascending region 52 from the upper part of the descending region 51, and the lower part between the ascending region 52 and the descending region 51 freely circulates; the upper end of the ascending area 52 is provided with an upper drainage port 56, and the bottom end of the ascending area 52 is provided with a lower drainage port 57; a plurality of aeration branch pipes 58 are vertically arranged in the ascending region 52 and the descending region 51, a plurality of aeration openings 59 are formed in the aeration branch pipes 58, the bottoms of the aeration branch pipes 58 are connected with an aeration main pipe 60, and the aeration main pipe 60 is connected with an oxygenation pump 61.
In this embodiment, the ejector 4 includes a liquid inlet pipe 41, an air inlet pipe 42 and a mixed liquid nozzle 43, the tail end of the liquid inlet pipe 41 is connected to the water outlet pipe of the booster pump 3, the head of the liquid inlet pipe is provided with a jet orifice 44, the jet orifice 44 extends into the tail of the mixed liquid nozzle 43, and the air inlet pipe 42 is arranged on the side wall of the mixed liquid nozzle 43.
In this embodiment, the air inlet pipe 42 is connected to the variable frequency fan 7.
In this embodiment, the height of the ascending region is lower than that of the descending region.
In this embodiment, the ascending region and the descending region are filled with matrix fillers.
Furthermore, emergent aquatic herbaceous plants are planted on the ascending region and the descending region.
In this embodiment, the bottom of the outer tank is an aerobic zone.
In this embodiment, the bottom of the inner tank is an anaerobic zone, and the upper part is an anoxic zone.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A sewage treatment ecosystem with a multistage aeration tank is characterized by comprising a first-stage aeration tank and a second-stage aeration tank, wherein the first-stage aeration tank comprises an inner tank, an outer tank and a filtering tank which are of concentric circle structures, overflow holes are formed in the tank wall of the inner tank, a stirring paddle and a liquid suction pipe are arranged at the bottom of the inner tank, the liquid suction pipe is connected with a booster pump, the booster pump is connected with an ejector, the ejector is connected with an aeration plate, the aeration plate is arranged at the bottom of the outer tank, the bottom of the outer tank is communicated with the bottom of the filtering tank through a water collecting pipe, a sludge discharge port is formed in the bottom of the filtering tank, a liquid discharge port is formed in the upper part of the filtering tank, a filtering screen is arranged in the filtering tank, and the height of the filtering screen is lower than that of the liquid discharge port;
the secondary aeration tank comprises a descending area and an ascending area, a plurality of sewage inflow pipelines are laid at the top end of the descending area, the sewage inflow pipes are connected with a liquid outlet of the filter tank through an inflow header pipe, and a plurality of water inlet holes are arranged on the sewage inflow pipelines at intervals; a semi-closed partition plate is arranged between the ascending region and the descending region, the semi-closed partition plate separates the upper parts of the ascending region and the descending region, and the lower part between the ascending region and the descending region freely circulates; the upper end of the ascending area is provided with an upper drainage port, and the bottom end of the ascending area is provided with a lower drainage port; a plurality of aeration branch pipes are vertically arranged in the ascending area and the descending area, a plurality of aeration openings are formed in the aeration branch pipes, the bottoms of the aeration branch pipes are connected with an aeration main pipe, and the aeration main pipe is connected with an oxygenation pump.
2. The ecological system for sewage treatment with a multistage aeration tank as claimed in claim 1, wherein the ejector comprises a liquid inlet pipe, an air inlet pipe and a mixed liquid nozzle, the tail end of the liquid inlet pipe is connected with the water outlet pipe of the booster pump, the head of the liquid inlet pipe is provided with a jet orifice, the jet orifice extends into the tail of the mixed liquid nozzle, and the air inlet pipe is arranged on the side wall of the mixed liquid nozzle.
3. The ecological sewage treatment system with the multistage aeration tank as claimed in claim 2, wherein the air inlet pipe is connected with a variable frequency fan.
4. The ecological system for sewage treatment with a multi-stage aeration tank of claim 1, wherein the ascending area is lower than the descending area in height.
5. The ecological system for sewage treatment with a multi-stage aeration tank of claim 1, wherein the ascending region and the descending region are filled with matrix fillers.
6. The ecological system for sewage treatment with a multistage aeration tank of claim 1, wherein emergent aquatic herbaceous plants are planted on the ascending region and the descending region.
7. The ecological system for sewage treatment with a multi-stage aeration tank of claim 1, wherein the bottom of the outer tank is an aerobic zone.
8. The ecological system for sewage treatment with a multi-stage aeration tank of claim 1, wherein the bottom of the inner tank is an anaerobic zone and the upper part is an anoxic zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023068351.6U CN214990937U (en) | 2020-12-18 | 2020-12-18 | Sewage treatment ecosystem with multistage aeration tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023068351.6U CN214990937U (en) | 2020-12-18 | 2020-12-18 | Sewage treatment ecosystem with multistage aeration tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214990937U true CN214990937U (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023068351.6U Active CN214990937U (en) | 2020-12-18 | 2020-12-18 | Sewage treatment ecosystem with multistage aeration tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214990937U (en) |
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2020
- 2020-12-18 CN CN202023068351.6U patent/CN214990937U/en active Active
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