CN108002523A - A kind of method realized boring aeration pipe and rotate aeration automatically - Google Patents
A kind of method realized boring aeration pipe and rotate aeration automatically Download PDFInfo
- Publication number
- CN108002523A CN108002523A CN201711037255.5A CN201711037255A CN108002523A CN 108002523 A CN108002523 A CN 108002523A CN 201711037255 A CN201711037255 A CN 201711037255A CN 108002523 A CN108002523 A CN 108002523A
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- Prior art keywords
- pipe
- aeration pipe
- boring
- boring aeration
- aeration
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Links
- 238000005273 aeration Methods 0.000 title claims abstract description 170
- 238000000034 method Methods 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 239000011214 refractory ceramic Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 230000008021 deposition Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 17
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- C02F3/08—Aerobic processes using moving contact bodies
- C02F3/085—Fluidized beds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of method realized boring aeration pipe and rotate aeration automatically, comprise the following steps：A, boring aeration pipe is made, the boring aeration pipe both ends set first row solarization air cap and second row solarization air cap, are respectively facing the both sides of boring aeration pipe respectively；The air inlet plug receptacle of the boring aeration pipe is installed on to the end of aeration air inlet pipe by bearing B,；C, gas enters boring aeration pipe by being aerated air inlet pipe, boring aeration pipe is produced reverse motive force, promotes boring aeration pipe to rotate automatically, realizes rotation aeration.The present invention makes full use of gas reaction force caused by being aerated, realizes the automatic rotation of boring aeration pipe by the combination of the boring aeration pipe with specific boring method and central bearing.The aeration area of boring aeration pipe can be greatly improved in this design method, available for all kinds of water treatment buildings using boring aeration pipe, have preferable aeration effect, effectively prevent bottom of pond deposition.
Description
Technical field
The present invention relates to a kind of method realized boring aeration pipe and rotate aeration automatically.This method is mainly used in water process
In aeration system, by the combination of boring aeration pipe and bearing with special drilling mode, realize that aeration process middle punch exposes
Tracheae rotates automatically, expands aeration area, can be widely applied to the water treatment building with aeration system.
Background technology
Aeration system is one of important water treatment technology, and its main purpose is dense by being aerated raising oxygen in water
Degree, structures, such as the aeration tank with floating stuffing is handled in part, also with hydraulic disturbance floating stuffing, it is ensured that suspend
The effect that filler effectively fluidizes.Common aerator is boring aeration pipe in aeration system.Traditional boring aeration pipe be
Aperture is opened in aeration tube both sides, and gas is sprayed from both sides aperture during aeration, realizes the purpose of oxygenation and hydraulic disturbance.
In order to obtain preferable aeration effect, it is generally the case that gas Via Design flow velocity value is higher, so as to reach gas
The effect of body injection.This higher gas injection flow velocity can not only be such that gas is come into full contact with water body, improve oxidation effect, together
When can also produce strong hydraulic disturbance effect.
Gas enters water body by the small hole injection on boring aeration pipe, will produce larger reaction force, but due to passing
The boring aeration pipe of system is bilateral perforate, therefore the reaction force that this gas injection produces can be supported mutually in the horizontal direction
Disappear, and vertical direction can also be fastened by fixing pipe and disappeared.Bilateral perforate is such as changed to unilateral perforate, the reaction of this horizontal direction
Power will promote aeration tube displacement.Due to the reaction force of high-speed gas injection generation during in order to make full use of aeration, it is contemplated that adopt
With the combination of specific unilateral perforate aeration tube and bearing, realize that boring aeration pipe rotates automatically.It is this to realize boring aeration pipe
Automatic rotating design method can expand aeration area, reduce aeration blind area, so as to improve water treatment aeration effect, have wider
General application prospect.
The content of the invention
It is an object of the present invention to provide a kind of method realized boring aeration pipe and rotate aeration automatically, pass through specific aeration tube
Boring method, can make full use of gas reaction force caused by aeration, automatic with reference to the spinfunction of bearing, driving aeration tube
Rotation.This method can be applicable in all kinds of water treatment buildings using boring aeration pipe.
To achieve these goals, the technical scheme is that：It is a kind of to realize that boring aeration pipe rotates aeration automatically
Method, it is characterised in that this method comprises the following steps：
A, boring aeration pipe is made, air inlet plug receptacle is set in the middle part of the boring aeration pipe, with the boring aeration pipe air inlet connecting
Tap position is separation, first extreme direction of boring aeration pipe is provided with first row solarization air cap, to the boring aeration
The second extreme direction of pipe is provided with corresponding second row solarization air cap, the boring aeration pipe first row solarization air cap and second row solarization air cap
Opening direction is respectively facing the both sides of boring aeration pipe；
The air inlet plug receptacle of the boring aeration pipe is installed on to the end of aeration air inlet pipe by bearing B,；
C, gas enters boring aeration pipe by being aerated air inlet pipe, passes through the first row solarization air cap and second row on boring aeration pipe
Solarization air cap is injected into water body, boring aeration pipe is produced reverse motive force, promotes boring aeration pipe to rotate automatically, realizes rotation
Turn aeration.
Further, the first row solarization air cap and second row solarization air cap are disposed as the downward α degree of horizontal direction, wherein α
Value 30 ~ 45.
Further, the m/s of gas design current velocity 5m/s ~ 10 in the pipe of the aeration air inlet pipe.
Further, the bearing uses corrosion-resistant rub resistance material, is preferably stainless steel or refractory ceramics.
Further, a diameter of 30 millimeters to 40 millimeters of boring aeration pipe, are aerated 50 centimetres to 100 centimetres of length of tube, expose
Tracheae opening diameter is 4 millimeters to 5 millimeters, and perforate spacing is 20 centimetres to 50 centimetres.
Further, the position of opening of first row solarization air cap is L1=2a（X-1）+ a, wherein X represent center to outer end X
A solarization air cap, L1 are the solarization air cap to centre distance, and a is the perforate spacing of solarization air cap, usual 5 centimetres to 20 centimetres of value；The
The position of opening of two row's solarization air caps is L2=2aX, wherein X represents center to outer end X solarization air cap, and L1 is the solarization air cap into
Heart distance.
The automatic rotation of the achievable boring aeration pipe of the present invention, improves aeration area.In addition, opened using odd even multiple complementation
Hole method, aeration area can double again.The design method of the present invention mainly defines boring method and the master of aeration tube
Parameter is wanted, in the case that its main function is identical aeration quantity, effective aeration area can be improved, worn so as to reduce conventional fixed-type
The aeration blind area of hole aeration tube, so as to improve the fluid effect of biologic packing material, reduces biological contact oxidation pond bottom deposition problem.
The design method of the present invention can be applicable in the various water treatment buildings using boring aeration pipe, can be not only used for newly-built pond type and sets
Meter, and available for transformation pond type design.
Brief description of the drawings
Fig. 1 rotates schematic diagram automatically for aeration tube.
Fig. 2 is aeration tube perforate schematic diagram.
Fig. 3 is A-A profiles.
Fig. 4 is B-B profiles.
Fig. 5 connects detail drawing for bearing.
Figure includes：It is aerated air inlet pipe 1, bearing 2, boring aeration pipe 3, first row solarization air cap 4, second and exposes exhausting-gas hole 5, axis
Hold ball 6.
Embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
This embodiment of the invention is a kind of method realized boring aeration pipe and rotate aeration automatically, it mainly includes specific
The installation method of boring aeration pipe boring method and bearing.
Specifically, a kind of method realized boring aeration pipe and rotate aeration automatically, it is characterised in that this method includes following
Step：
A, boring aeration pipe is made, air inlet plug receptacle is set in the middle part of the boring aeration pipe, with the boring aeration pipe air inlet connecting
Tap position is separation, first extreme direction of boring aeration pipe is provided with first row solarization air cap, to the boring aeration
The second extreme direction of pipe is provided with corresponding second row solarization air cap, the boring aeration pipe first row solarization air cap and second row solarization air cap
Opening direction is respectively facing the both sides of boring aeration pipe；
The air inlet plug receptacle of the boring aeration pipe is installed on to the end of aeration air inlet pipe by bearing B,；
C, gas enters boring aeration pipe by being aerated air inlet pipe, passes through the first row solarization air cap and second row on boring aeration pipe
Solarization air cap is injected into water body, boring aeration pipe is produced reverse motive force, promotes boring aeration pipe to rotate automatically, realizes rotation
Turn aeration.
According to a particular embodiment of the invention, for aeration main pipe, the aeration for being aerated air inlet pipe goes out the aeration air inlet pipe
Mouth connection boring aeration pipe.
As shown in the figure, design method of the present invention mainly includes the installation of specific boring aeration pipe boring method and bearing
Method.It is that boring aeration pipe is connected centrally through bearing with aeration main pipe to realize the rotating principle of boring aeration pipe, and center is extremely
Both sides are using unilateral reverse perforate.During aeration, the reverse perforate of boring aeration pipe both sides produces motive force, and driving aeration tube is in
The heart is center of circle autorotation.This principle make use of unilateral motive force caused by aeration, realize the automatic rotation of aeration tube.
Boring aeration pipe stomata design method uses the downward α degree of horizontal direction, wherein α values 30 ~ 45.The number of openings is with wearing
The relation of hole aeration length of tube is as follows：
L=4Na
Wherein L is boring aeration length of tube, and N is boring aeration pipe one side stomata quantity, and a is unit length, usual 5 centimetres of value
To 20 centimetres.
Aeration air inlet pipe 1 is connected by bearing 2 with the air inlet plug receptacle of boring aeration pipe 3, and air inlet plug receptacle is positioned at perforation
3 center of aeration tube, is connected with 2 outside diameter of bearing, the m/s of gas design current velocity 5m/s in pipe ~ 10.
The connection of bearing 2 aeration air inlet pipe 1 and boring aeration pipe 3, using corrosion-resistant and abrasion resisting material, it is proposed that using stainless
Steel or high-temperature ceramic materials etc..Boring aeration pipe is connected with 2 internal diameter of bearing.
Boring aeration pipe 3 uses central air induction, and material is corrosion-resistant and be unlikely to deform using light weights such as resin or stainless steels
Material.
The first row solarization air cap 4 of boring aeration pipe uses the round hole of a diameter of 4mm to 5mm.Blowing angle is using horizontal
The downward α degree in direction, wherein α values 30 ~ 45.4 position of opening L1=2a of boring aeration pipe stomata（X-1）+a.Wherein X represents center
To outer end X solarization air cap 4, L1 is the solarization air cap to centre distance, and a is the perforate spacing of solarization air cap, usual 5 centimetres of value
To 20 centimetres.
Second exposure exhausting-gas hole 5 of boring aeration pipe is same as above, and differs only in the perforate of opening direction and first row solarization air cap 4
Direction is respectively facing, to form common motive force driving boring aeration pipe rotation.5 position of opening L2 of boring aeration pipe stomata=
2aX.Wherein X represents center to outer end X solarization air cap, and L2 is the solarization air cap to centre distance, and a is between the perforate of solarization air cap
Away from usual 5 centimetres to 20 centimetres of value.
Bearing ball 6 is 2 roll inside part of bearing, and material uses anti-corrosion and high strength material.
Preferably, the junction of the boring aeration pipe and aeration air inlet pipe is additionally provided with speed limiting mechanism, and limitation perforation exposes
The rotating speed of tracheae is 10 to 50 revs/min.On the one hand each rotation aeration tube is avoided due to rotation caused by coefficient of friction resistance difference
Speed is different, on the other hand it also avoid too fast rotating speed and the sealing material of bearing 2 is caused to damage.
Preferably, first piston is set to the first extreme direction in the middle part of the boring aeration pipe, in the boring aeration pipe
Portion to the second extreme direction sets second piston, and resetting spring is set between first piston and second piston, and first piston and second live
Fill in surface and form hairbrush shape, when gases at high pressure enter in boring aeration pipe from aeration air inlet pipe, promote first piston and second
Piston is moved to both sides, and first piston and second piston are moved to both sides while can accelerate to lead in the water in boring aeration pipe
Solarization air cap is crossed to discharge, while first piston and the cleanable solarization air cap of the hairbrush on second piston surface, it is multiple at the end of aeration
The elastic force of position spring overcomes the resistance of water, and first piston and second piston are moved to the middle part of boring aeration pipe, normal to ensure
Operation, can set limited block in boring aeration inside pipe wall, limit the shift position of first piston and second piston.
It is in place of being different from the prior art：
Compared to existing fixed boring aeration pipe design method, design method of the present invention passes through central bearing and specific boring method
The combination of boring aeration pipe, gas reaction force when making full use of aeration, realizes the automatic rotation of boring aeration pipe.
A kind of boring aeration pipe boring method is proposed, using the unilateral reversely principle with parity-complementary, and propose to perforate
It is aerated the relational expression of length of tube and the number of openings.This method can further improve aeration area.
Aeration tube opening direction is in downwards 30 degree to 45 degree for horizontal direction, rotary power can be provided for aeration tube, at the same time
Take into account bottom of pond souring.Angle is smaller, and rotary power is stronger；Angle is bigger, and undermining effect is stronger.Specifically can be according to work
Skill demand value.
The design method can be applicable in all kinds of water treatment buildings using boring aeration pipe, such as locate in advance to aquatic organism
Reason, sewage aerobic processing etc..
It above are only presently preferred embodiments of the present invention.It will be appreciated by those skilled in the art that the invention is not restricted to described here
Specific embodiment, can carry out for a person skilled in the art it is various significantly change, readjust and substitute without
Depart from protection scope of the present invention.Therefore, although being described in further detail by above example to the present invention,
The present invention is not limited only to above example, without departing from the inventive concept, can also include that more other are equivalent
Embodiment, and the scope invented is determined by scope of the appended claims.
Claims (6)
- A kind of 1. method realized boring aeration pipe and rotate aeration automatically, it is characterised in that this method comprises the following steps：A, boring aeration pipe is made, air inlet plug receptacle is set in the middle part of the boring aeration pipe, with the boring aeration pipe air inlet connecting Tap position is separation, first extreme direction of boring aeration pipe is provided with first row solarization air cap, to the boring aeration The second extreme direction of pipe is provided with corresponding second row solarization air cap, the boring aeration pipe first row solarization air cap and second row solarization air cap Opening direction is respectively facing the both sides of boring aeration pipe；The air inlet plug receptacle of the boring aeration pipe is installed on to the end of aeration air inlet pipe by bearing B,；C, gas enters boring aeration pipe by being aerated air inlet pipe, passes through the first row solarization air cap and second row on boring aeration pipe Solarization air cap is injected into water body, boring aeration pipe is produced reverse motive force, promotes boring aeration pipe to rotate automatically, realizes rotation Turn aeration.
- 2. the method as described in claim 1, it is characterised in that the first row solarization air cap and second row solarization air cap are disposed as The downward α degree of horizontal direction, wherein α values 30 ~ 45.
- 3. the method as described in claim 1, it is characterised in that it is described aeration air inlet pipe pipe in gas design current velocity 5m/s ~ 10 m/s。
- 4. the method as described in claim 1, it is characterised in that the bearing uses corrosion-resistant rub resistance material, preferably not Become rusty steel or refractory ceramics.
- 5. the method as described in claim 1, it is characterised in that a diameter of 30 millimeters to 40 millimeters of boring aeration pipe, aeration tube 50 centimetres to 100 centimetres of length, aeration tube opening diameter are 4 millimeters to 5 millimeters, and perforate spacing is 20 centimetres to 50 centimetres.
- 6. the method as described in claim 1, it is characterised in that, the position of opening of first row solarization air cap is L1=2a（X-1）+ a, Wherein X represents center to outer end X solarization air cap, and L1 is the solarization air cap to centre distance, and a is the perforate spacing of solarization air cap, is led to Normal 5 centimetres to 20 centimetres of value；The position of opening of second row solarization air cap is L2=2aX, wherein X represents center to outer end X Solarization air cap, L1 are the solarization air cap to centre distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711037255.5A CN108002523B (en) | 2017-10-30 | 2017-10-30 | Method for realizing automatic rotary aeration of perforated aeration pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711037255.5A CN108002523B (en) | 2017-10-30 | 2017-10-30 | Method for realizing automatic rotary aeration of perforated aeration pipe |
Publications (2)
| Publication Number | Publication Date |
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| CN108002523A true CN108002523A (en) | 2018-05-08 |
| CN108002523B CN108002523B (en) | 2023-11-17 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862553A (en) * | 2018-07-11 | 2018-11-23 | 南通劲凌智能科技有限公司 | A kind of hot type sewage aeration cleaning equipment and its method |
| CN108905527A (en) * | 2018-07-24 | 2018-11-30 | 王鹏 | A kind of polyurethane spinning process |
| CN108905526A (en) * | 2018-07-24 | 2018-11-30 | 王鹏 | A kind of VOCs exhaust gas purification system |
| CN110255701A (en) * | 2019-06-06 | 2019-09-20 | 广州市净水有限公司 | The biologic packing material utensil of integrated aeration performance |
| CN110980948A (en) * | 2019-12-14 | 2020-04-10 | 浙江永续环境工程有限公司 | Facultative oxygen type flowing biological bed reactor |
| CN111847679A (en) * | 2020-08-18 | 2020-10-30 | 江苏裕隆环保有限公司 | Underwater aeration device |
| CN111995187A (en) * | 2020-08-25 | 2020-11-27 | 上海吾励环境技术有限公司 | Acrylonitrile wastewater treatment method |
| CN113307387A (en) * | 2021-05-17 | 2021-08-27 | 南昌航空大学 | Zero-energy-consumption self-rotating aeration device |
| CN113582342A (en) * | 2021-08-25 | 2021-11-02 | 安徽理工大学环境友好材料与职业健康研究院(芜湖) | Emergency treatment device for sudden urban landscape water pollution |
| CN115594257A (en) * | 2022-10-24 | 2023-01-13 | 山东大学（Cn） | Discharge nitrogen fixation device and method |
| CN117105417A (en) * | 2023-10-24 | 2023-11-24 | 湖南中拓环境工程有限公司 | Integrated domestic sewage treatment equipment |
| CN117303610A (en) * | 2023-10-25 | 2023-12-29 | 歌林川生物科技(天津)有限公司 | Water aeration device for urban river treatment |
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| CN108862553A (en) * | 2018-07-11 | 2018-11-23 | 南通劲凌智能科技有限公司 | A kind of hot type sewage aeration cleaning equipment and its method |
| CN108862553B (en) * | 2018-07-11 | 2021-09-14 | 广州市自净环保有限公司 | Heating type sewage aeration purification equipment and method thereof |
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| CN108905527A (en) * | 2018-07-24 | 2018-11-30 | 王鹏 | A kind of polyurethane spinning process |
| CN108905526A (en) * | 2018-07-24 | 2018-11-30 | 王鹏 | A kind of VOCs exhaust gas purification system |
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| CN111847679A (en) * | 2020-08-18 | 2020-10-30 | 江苏裕隆环保有限公司 | Underwater aeration device |
| CN111995187A (en) * | 2020-08-25 | 2020-11-27 | 上海吾励环境技术有限公司 | Acrylonitrile wastewater treatment method |
| CN113307387A (en) * | 2021-05-17 | 2021-08-27 | 南昌航空大学 | Zero-energy-consumption self-rotating aeration device |
| CN113582342A (en) * | 2021-08-25 | 2021-11-02 | 安徽理工大学环境友好材料与职业健康研究院(芜湖) | Emergency treatment device for sudden urban landscape water pollution |
| CN115594257A (en) * | 2022-10-24 | 2023-01-13 | 山东大学（Cn） | Discharge nitrogen fixation device and method |
| CN117105417A (en) * | 2023-10-24 | 2023-11-24 | 湖南中拓环境工程有限公司 | Integrated domestic sewage treatment equipment |
| CN117105417B (en) * | 2023-10-24 | 2024-01-02 | 湖南中拓环境工程有限公司 | Integrated domestic sewage treatment equipment |
| CN117303610A (en) * | 2023-10-25 | 2023-12-29 | 歌林川生物科技(天津)有限公司 | Water aeration device for urban river treatment |
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| CN108002523B (en) | 2023-11-17 |
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