CN103058401A - High-efficiency self-priming centrifugal submersible aerator - Google Patents
High-efficiency self-priming centrifugal submersible aerator Download PDFInfo
- Publication number
- CN103058401A CN103058401A CN2013100298196A CN201310029819A CN103058401A CN 103058401 A CN103058401 A CN 103058401A CN 2013100298196 A CN2013100298196 A CN 2013100298196A CN 201310029819 A CN201310029819 A CN 201310029819A CN 103058401 A CN103058401 A CN 103058401A
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- Prior art keywords
- water
- aeration plate
- submersible
- aeration
- impeller
- Prior art date
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Links
- 238000005276 aerator Methods 0.000 title claims abstract description 29
- 238000005273 aeration Methods 0.000 claims abstract description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000007921 spray Substances 0.000 claims description 35
- 239000011259 mixed solution Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000010802 sludge Substances 0.000 abstract description 7
- 239000010865 sewage Substances 0.000 abstract description 6
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 17
- 230000006872 improvement Effects 0.000 description 4
- 241000272517 Anseriformes Species 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000007912 intraperitoneal administration Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 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
Landscapes
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to sewage treatment equipment, particularly a self-priming centrifugal submersible aerator. The invention aims to provide a high-working-reliability high-efficiency self-priming centrifugal submersible aerator. According to the submersible aerator, a drive shaft of a submersible motor is connected with impellers positioned in the inner cavity of an aeration tray; the upper end of the aeration tray is provided with an air inlet, and the lower end is provided with a water inlet; and the periphery of the aeration tray is provided with a flow channel for discharging a water-air mixture into water. The invention is characterized in that the flow channel on the periphery of the aeration tray is arranged obliquely downwards. Preferably, the outlet of the flow channel is connected with a plurality of injection pipes, and the injection pipes are regularly arranged on the periphery of the aeration tray according to lengths. The submersible motor is arranged below the aeration tray. By adopting the technical scheme of the invention, the flow channel in the aeration tray is obliquely downwards instead of horizontal, so that the injected water-air mixed fluid can stir the sludge on the tank bottom, thereby preventing the sludge from settling.
Description
Technical field
The present invention relates to a kind of sewage disposal device, be specifically related to self-priming centrifugal submersible aerator.
Background technology
Self-priming centrifugal submersible aerator is a kind of for the specific equipment to the water body aeration aerating in water technology.Its principle of work is: the submersible machine transmission shaft directly drives the semiclosed-type impeller high speed rotating that is built in the aeration plate, produces high pressure under the effect of rotary blade centrifugal force, and air and water are inhaled into from the inlet mouth of aeration plate upper/lower terminal respectively; Impeller communicates with passing into inlet pipe waterborne, imports air.Be furnished with a plurality of runners around the aeration plate, the radially at a high speed ejection from the exit after water, gas mixed solution enter and fully mixed in the runner, and rapidly to diffusion all around, micro-bubble in small, broken bits fully with the pond in the water body fusion, oxygen in the atmosphere is dissolved in the water, thereby reaches to the purpose of water body aeration aerating.
Therefore this kind aerator is extensively used in sewage treatment process because the negative pressure air amount that produces when the vane rotary draining does not need to dispose blast apparatus, and the equipment facility investment is few.But there is following defective in this kind aerator that uses at present:
When 1, aerator was worked, air was to be inhaled into the impeller intraperitoneal by inlet pipe from the impeller axle center hole, because motor is to be placed on the aeration plate top, and coaxial with impeller, so that inlet pipe can't be docked with the axle center hole of impeller top.Be head it off, the intake method of aerator has two kinds of structure formations at present: the one, and inlet pipe curves 180 degree and enters from the axle center hole below the impeller; The 2nd, in that a middle gas chamber is set above the mixing chamber and between the submersible machine, communicate with inlet pipe, the hole of middle gas chamber below communicates with the impeller axle center hole, and air is imported.
The defective that these two kinds of structures are deposited is: produce addedresistance when high-speed air process channel bend or air chamber, cause air-intake negative-pressure loss of pressure head, air input reduces, and has reduced the aeration efficient of aerator.
2, the runner around the aerator mixing chamber is the distribution of horizontal dispersion shape, and water, gas mixed solution are from exporting also along continuous straight runs ejection when work.During installation, do not precipitate in order to make pool bottom sludge, aerator is placed at the bottom of need being close to the pond, and aerator water-in and runner are stopped up by the foreign material in the mud easily like this, easily causes impeller to damage.Although slag net has been installed in the aerator water inlet by the producer that has, slag net also can be stopped up by the fibre object in the water, causes the aerator aeration rate to descend even cisco unity malfunction.
3, aeration plate is a plate-like foundry goods, and middle cavity is placed impeller, and many runners that distribute all around communicate with it, and runner exit is on the aeration plate circumferential edge, and the aeration plate periphery can form an annular bubble band during aeration.A large amount of small bubbles in the annular bubble band can become large because can not in time spreading to merge rapidly, and bubble surface area is sharply reduced, and cause the dissolved oxygen efficiency of water to descend.Simultaneously, along with the change of single isolated bubbles diameter is large, its buoyancy in water increases, and has accelerated the lift velocity of bubble, has reduced the residence time that gas ducks in drink, and has also caused the dissolved oxygen efficiency of water to descend.
Summary of the invention
Main purpose of the present invention provides a kind of centrifugal submersible aerator of high-efficiency self-suction of reliable operation.
For achieving the above object, the technical solution adopted in the present invention is: a kind of submersible aerator, the transmission shaft that comprises submersible machine connects the impeller that is positioned at the aeration plate inner chamber, the aeration plate upper end arranges inlet mouth, the lower end arranges water-in, the aeration plate periphery arranges water, gas mixed solution is entered the runner in the water, it is characterized in that: the oblique lower setting of the runner of described aeration plate periphery.
Preferably, described runner exit connects spray tube, and spray tube arranges a plurality of, and a plurality of spray tubes are arranged around aeration plate periphery rule by length.
Preferably, the axial tangential direction setting along aeration plate of described spray tube.
Preferably, described water-in is made of the through hole that is arranged on the water inlet plate mid-way on the aeration plate, and the edge of described through hole inwardly evenly arranges a plurality of toothed projections.
Preferably, described submersible machine is arranged on the aeration plate below, inlet pipe and impeller coaxial arrangement that inlet mouth connects, and vertically extend to more than the liquid level of pond.
Preferably, described submersible machine bottom connection base.
After adopting technical scheme of the present invention, the runner in the aeration plate is made into downward-sloping by original level, and the water of ejection, gas mixed stream are stirred pool bottom sludge, prevents sludge settling.Simultaneously, prolonged the residence time that gas ducks in drink.The external spray tube of runner exit, the length of spray tube is different in size, and the formation of aeration plate circumferential annular bubble band when having avoided aeration has reduced bubble and has merged the probability that becomes large.Through hole edge on the aerator water inlet plate arranges projection; so that circular water-in becomes internal tooth form; gap between impeller and the water-in base plate is very little; and consist of scissor-shaped with projection; when the fibre object in the sewage or flap are inhaled into by water-in; blade on the impeller of rotation is cut off it, tear in projection, thereby reaches the purpose of anti-clogging plug and protection impeller.Submersible machine is inverted and is installed in the aeration plate below, and inlet pipe is installed in the aeration plate top, forms the structure of lower water inlet, upper air.Because inlet pipe and the same axle center of impeller, air directly enters the impeller intraperitoneal from inlet pipe, can not produce addedresistance, without the negative head loss, has improved the aeration efficient of aerator.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the vertical view of a kind of embodiment of Fig. 1;
Fig. 3 is the vertical view of the another kind of embodiment of Fig. 1;
Fig. 4 is the upward view of the water-in among Fig. 1.
Embodiment
Such as the described submersible aerator of Fig. 1 to 4, comprise submersible machine 1, the transmission shaft of submersible machine 1 connects the impeller 3 that is positioned at aeration plate 2 inner chambers, aeration plate 2 upper ends arrange inlet mouth, the lower end arranges water-in, aeration plate 2 peripheries arrange water, the gas mixed solution enters the runner 4 in the water, these all are the prior aries relevant with improvement of the present invention, as for how transmission of transmission shaft, fixing, aeration plate 2, the concrete structure of impeller 3 and decoration form then are that those skilled in the art can realize having many kinds of embodiments according to prior art or the further improvement of self creativity.An improvement of the present invention is: the runner 4 oblique lower settings of described aeration plate 2 peripheries.This runner 4 can have numerous embodiments: as shown in Figure 1, aeration plate 2 is disk-like structures of hollow, and plate edge partly arranges the outer and middle inner chamber that is used for arranging impeller 3 of dish of uniform channel connection dish.Also can be aeration plate 2 be made of near the fixed connecting rod up and down two plate bodys and the plate body outward flange.Fixed connecting rod can support two plate bodys, and the zone between bar and the bar just consists of runner 4 naturally simultaneously.
As shown in Figure 1, inlet mouth is positioned at aeration plate 2 and impeller 3 tops, and by inlet pipe 7 interior air amounts; Air flow is shown in arrow among Fig. 18.Water-in is positioned at mid-way, aeration plate 2 lower end.Link span 10 upper ends connect aeration plate 2, the lower end connects submersible machine 1.Link span 10 peripheries are engraved structure, and the direction of current shown in arrow among Fig. 19 enters in the link span 10 and upwards enter aeration plate 2 by water-in; Then empty G﹠W under the effect of impeller 3 mixed flow and oblique by runner 4 under be ejected in the pond.Runner 4 in the aeration plate 2 is made into downward-sloping by original level, the water of ejection, gas mixed solution are stirred pool bottom sludge, prevents sludge settling.Simultaneously, then oblique time of water, gas mixed solution move upward under buoyancy, and whole movement path is similar to opening up para-curve, and movement path lengthens, and has prolonged the residence time that gas ducks in drink; Significantly improve the effect of oxygenation in the pond.
Further improve and be: described runner 4 outlets connect spray tube 5, and spray tube 5 arranges a plurality of, and a plurality of spray tubes 5 are arranged around aeration plate 2 peripheral rules by length.Spray tube 5 is exactly straight-run of pipe usually, is connected to upper the getting final product of aeration plate 2 peripheries.Then water, gas mixed solution are mapped in the pond through runner 4 and the punching of spray tube 5 inner chambers.When the size of aeration plate 2 was suitable with impeller 3 diameters, spray tube 5 directly was connected to aeration plate 2 outer walls at impeller 3 edges, this moment spray tube 5 tube chamber a kind of embodiment of runner 4 namely.In such improvement, aeration plate 2 diameters can suitably dwindle usually, save the casting processing cost; The external spray tube 5 of runner 4 outlets, the length of spray tube 5 is different in size, and the formation of aeration plate 2 circumferential annular bubble bands when having avoided aeration has reduced bubble and has merged the probability that becomes large.
As for so-called " by length " " rule layout ", its purpose will utilize spray tube 5 that water, gas mixed solution are sprayed in the pond dispersedly exactly, avoids forming annular bubble band and bubbling polymerization.Therefore, can be as shown in Figure 2, spray tube 5 arranges many groups, sets gradually the different long spray tube 51 of pipe range, middle spray tube 52, short spray tube 53 in every group, and then the spray tubes 5 of organizing are evenly arranged along aeration plate 2 peripheries more.Perhaps as shown in Figure 3, spray tube 5 comprises long spray tube group 54, short spray tube group 55, and spray tube 5 length in every group are roughly the same, long spray tube group 54 and short spray tube group 55 along aeration plate 2 peripheries evenly, the compartment of terrain layouts.Aeration plate 2 outward flanges between the adjacent spray tube 5 can seal; Also can be runner 4 direct and exterior, to discharge a small amount of water, gas mixed solution.Also can become different lengths according to pond planeform and size design, increase the aeration service area, make gas distribution be tending towards even.For example embodiment shown in Figure 3 just is fit to use in the rectangular sewage lagoon.Spray tube 5 is prefabricated structure with aeration plate 2, can use field assembly, is convenient to transportation.
Be more preferably the axial tangential direction setting along aeration plate 2 of described spray tube 5.Can reduce like this drag losses of water, the injection of gas mixed solution, it is farther, more even to be convenient to spray ground in the pond; Further avoid bubble to reunite.
As shown in Figure 4, described water-in is made of the through hole that is arranged on water inlet plate 21 mid-ways on the aeration plate 2, and the edge of described through hole inwardly evenly arranges a plurality of toothed projections 22.Aeration plate 2 normally casting processing forms, and water inlet plate 21 can be so that the assembling of impeller 3.Manhole edge on the water inlet plate 21 is arranged toothed projections 22, and water-in just correspondingly forms zig-zag or claims gear shape so.Gap between the blade of impeller 3 and the water inlet plate 21 is usually very little; and consist of the scissor-shaped structure with projection 22; when the fibre object in the sewage or flap were inhaled into by water-in, the blade of rotation was cut off it, tear in projection 22, thereby reached the purpose of anti-clogging plug and protection impeller 3.
As shown in Figure 1, described submersible machine 1 is arranged on aeration plate 2 belows, inlet pipe 7 and impeller 3 coaxial arrangement that inlet mouth connects, and vertically extend to more than the liquid level of pond; Described submersible machine 1 bottom connects base 6.Submersible machine 1 is inverted and is installed in aeration plate 2 belows, and inlet pipe 7 is installed in aeration plate 2 tops, forms the structure of lower water inlet, upper air.Because inlet pipe 7 and impeller 3 same axle center, air directly enters in impeller 3 work areas from inlet pipe 7, can not produce addedresistance, without the negative head loss, has improved the aeration efficient of aerator.Simultaneously, the base 6 that install submersible machine 1 bottom consists of the bearing of aeration, improved the water-in height, effectively reduced because sucking obstruction that mud causes and the probability of damage of impeller 3, and save and simplified bearing larger when submersible machine 1 is arranged on aeration plate 2 top, simplify the structure, reduced cost of manufacture.
Claims (6)
1. submersible aerator, the transmission shaft that comprises submersible machine (1) connects the impeller (3) that is positioned at aeration plate (2) inner chamber, aeration plate (2) upper end arranges inlet mouth, the lower end arranges water-in, aeration plate (2) periphery arranges water, gas mixed solution is entered runner (4) in the water, it is characterized in that: the oblique lower setting of runner (4) of described aeration plate (2) periphery.
2. submersible aerator according to claim 1 is characterized in that: described runner (4) outlet connects spray tube (5), and spray tube (5) arranges a plurality of, and a plurality of spray tubes (5) are arranged around the peripheral rule of aeration plate (2) by length.
3. submersible aerator according to claim 2 is characterized in that: described spray tube (5) axially along the tangential direction setting of aeration plate (2).
4. according to claim 1 and 2 or 3 described submersible aerators, it is characterized in that: described water-in is made of the through hole that is arranged on water inlet plate (21) mid-way on the aeration plate (2), and the edge of described through hole inwardly evenly arranges a plurality of toothed projections (22).
5. submersible aerator according to claim 4 is characterized in that: described submersible machine (1) is arranged on aeration plate (2) below, the inlet pipe (7) that inlet mouth connects and impeller (3) coaxial arrangement, and vertically extend to more than the liquid level of pond.
6. submersible aerator according to claim 5 is characterized in that: described submersible machine (1) bottom connection base (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100298196A CN103058401B (en) | 2013-01-28 | 2013-01-28 | High-efficiency self-priming centrifugal submersible aerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100298196A CN103058401B (en) | 2013-01-28 | 2013-01-28 | High-efficiency self-priming centrifugal submersible aerator |
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| CN103058401A true CN103058401A (en) | 2013-04-24 |
| CN103058401B CN103058401B (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013100298196A Expired - Fee Related CN103058401B (en) | 2013-01-28 | 2013-01-28 | High-efficiency self-priming centrifugal submersible aerator |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359831A (en) * | 2013-08-06 | 2013-10-23 | 南京贝特环保通用设备制造有限公司 | Ultrasonic-synergistic submersible centrifugal aeration machine |
| CN105060519A (en) * | 2015-08-19 | 2015-11-18 | 重庆晨鸣水处理设备有限公司 | Plug-flow submersible aerator |
| CN105130025A (en) * | 2015-08-19 | 2015-12-09 | 重庆晨鸣水处理设备有限公司 | Self-suction type plug-flow submersible aeration machine |
| CN105836906A (en) * | 2016-06-15 | 2016-08-10 | 何玮 | Efficient centrifugal submerged aerator |
| CN105858922A (en) * | 2016-06-15 | 2016-08-17 | 何玮 | Durable corrosion-resistant aerator |
| CN105906078A (en) * | 2016-05-20 | 2016-08-31 | 合肥工业大学 | Mobile type solar aeration machine |
| CN107500423A (en) * | 2017-09-13 | 2017-12-22 | 上海然庆环境科技有限公司 | A kind of rake release |
| CN108557939A (en) * | 2018-03-13 | 2018-09-21 | 佛山市金净创环保技术有限公司 | A kind of bubble generator and the sewage disposal system with it |
| CN112753649A (en) * | 2021-03-11 | 2021-05-07 | 福建云麒智能科技有限公司 | Turbine assembly of submersible aerator |
| CN113480019A (en) * | 2021-07-21 | 2021-10-08 | 中国计量大学 | Submersible runner jet aerator |
| CN114275908A (en) * | 2020-09-28 | 2022-04-05 | 赛莱默欧洲有限公司 | Self-suction submersible aerator |
| CN114656047A (en) * | 2022-03-24 | 2022-06-24 | 南京科技职业学院 | High-efficient dive aeration machine |
| CN114751533A (en) * | 2022-04-16 | 2022-07-15 | 宁波财经学院 | Multi-dimensional aeration device |
| CN116477763A (en) * | 2023-06-25 | 2023-07-25 | 成都理工大学 | Aerobic-anaerobic strict partition complete sewage treatment device |
| CN118324315A (en) * | 2024-04-18 | 2024-07-12 | 江苏开放大学（江苏城市职业学院） | Aerator for water treatment |
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| US5762833A (en) * | 1996-09-09 | 1998-06-09 | Aeromix Systems, Inc. | Aerator with a removable stator and method of repairing the same |
| CN2727163Y (en) * | 2004-06-15 | 2005-09-21 | 江建兴 | Compound-leaf impelling submersible aerator |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359831A (en) * | 2013-08-06 | 2013-10-23 | 南京贝特环保通用设备制造有限公司 | Ultrasonic-synergistic submersible centrifugal aeration machine |
| CN105060519A (en) * | 2015-08-19 | 2015-11-18 | 重庆晨鸣水处理设备有限公司 | Plug-flow submersible aerator |
| CN105130025A (en) * | 2015-08-19 | 2015-12-09 | 重庆晨鸣水处理设备有限公司 | Self-suction type plug-flow submersible aeration machine |
| CN105906078A (en) * | 2016-05-20 | 2016-08-31 | 合肥工业大学 | Mobile type solar aeration machine |
| CN105836906B (en) * | 2016-06-15 | 2019-03-19 | 何玮 | A kind of centrifugal type efficient submersible aerator |
| CN105836906A (en) * | 2016-06-15 | 2016-08-10 | 何玮 | Efficient centrifugal submerged aerator |
| CN105858922B (en) * | 2016-06-15 | 2019-03-19 | 何玮 | A kind of durable anticorrosive aeration machine |
| CN105858922A (en) * | 2016-06-15 | 2016-08-17 | 何玮 | Durable corrosion-resistant aerator |
| CN107500423A (en) * | 2017-09-13 | 2017-12-22 | 上海然庆环境科技有限公司 | A kind of rake release |
| CN108557939A (en) * | 2018-03-13 | 2018-09-21 | 佛山市金净创环保技术有限公司 | A kind of bubble generator and the sewage disposal system with it |
| CN114275908A (en) * | 2020-09-28 | 2022-04-05 | 赛莱默欧洲有限公司 | Self-suction submersible aerator |
| CN112753649A (en) * | 2021-03-11 | 2021-05-07 | 福建云麒智能科技有限公司 | Turbine assembly of submersible aerator |
| CN113480019A (en) * | 2021-07-21 | 2021-10-08 | 中国计量大学 | Submersible runner jet aerator |
| CN114656047A (en) * | 2022-03-24 | 2022-06-24 | 南京科技职业学院 | High-efficient dive aeration machine |
| CN114751533A (en) * | 2022-04-16 | 2022-07-15 | 宁波财经学院 | Multi-dimensional aeration device |
| CN116477763A (en) * | 2023-06-25 | 2023-07-25 | 成都理工大学 | Aerobic-anaerobic strict partition complete sewage treatment device |
| CN116477763B (en) * | 2023-06-25 | 2023-09-08 | 成都理工大学 | Aerobic-anaerobic strict partition complete sewage treatment device |
| CN118324315A (en) * | 2024-04-18 | 2024-07-12 | 江苏开放大学（江苏城市职业学院） | Aerator for water treatment |
| CN118324315B (en) * | 2024-04-18 | 2024-09-13 | 江苏开放大学（江苏城市职业学院） | Aerator for water treatment |
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| CN103058401B (en) | 2013-12-25 |
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