WO2020068007A1 - A device for capturing and cleaning of nano particles from the air - Google Patents
A device for capturing and cleaning of nano particles from the air Download PDFInfo
- Publication number
- WO2020068007A1 WO2020068007A1 PCT/TR2018/050520 TR2018050520W WO2020068007A1 WO 2020068007 A1 WO2020068007 A1 WO 2020068007A1 TR 2018050520 W TR2018050520 W TR 2018050520W WO 2020068007 A1 WO2020068007 A1 WO 2020068007A1
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- Prior art keywords
- air
- vessel
- water
- water solution
- room space
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/025—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by contacting gas and liquid with a static flow mixer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/04—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour through foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/10—Venturi scrubbers
Definitions
- the invention relates to a novel device and materials to capture and clean the air especially from Particulate Matter (PM) less than PM10 which is a mixture of solid and liquid particles suspended in the air.
- PM Particulate Matter
- Materials used to catch Nano Particles are: Water and soap foam, and relevant chemicals which catch certain air pollutants.
- the invention is designed to suck and mix outside air with water and soap foam. The mix is circulating inside the Vessel by water pump and sprayed by ejectors. Ejectors split-up air into small pieces in water solution. The air is moving up through water solution and soap foam. On the top of the Vessel, there are felts to catch the water and soap foam drops. Clean Air is going out passing through felts and upper holes outlets in the wall of the Vessel. Background of the Invention
- PM Particulate Matter A mixture of solid and liquid particles suspended in the air.
- PM10 refers to particles with a diameter larger than 2.5 micrometers and smaller than 10 micrometers.
- PM2.5 refers to fine particles with diameters of 2.5 micrometers and smaller. Both types can easily be inhaled.
- Primary air pollutants are: S0 2 - Sulphur Dioxide, NOx - Nitrogen (di)oxide, NH 3 - Ammonia and VOC - Volatile Organic Compounds.
- M 1 Secondary air pollutants are formed in the atmosphere through oxidation and reactions between primary air pollutants.
- the secondary particulates and organic aerosols also affect health, materials, agriculture and the environment.
- M 1 The secondary particulates and organic aerosols also affect health, materials, agriculture and the environment.
- Air Pollutants have effect directly to human health, materials, agriculture and the environment.
- US2585440A patent document discloses improvements in air-cleaners and washers and in particular to an improved air-cleaner and washer for separating air-borne impurities such as dirt, dust, ash, etc., from air in industrial use or in geographical areas where the air is mixed with impurities.
- US3811252A patent document discloses air-cleaning device which removes particulate matter from an input air stream and includes a wash section in which spaced apart air stream baffle members are removable adjustably and pivotally secured to supporting walls, a settling tank, a moisture eliminator section, and a suction fan section. According to documents US3811252A and US2585440A water or washing liquids pass through the air stream which contains impurities such as dirt, dust, ash, etc.
- Equation (1) there are fewer probabilities for washing liquids to catch and stably adsorb Particulate Matters less than PM10.
- Adhesion at a solid / liquid / gas interface is controlled by the surface forces and fluid dynamics of the system. Adhesion occurs when a bubble, droplet, or particle of material transfers to and remains at the interface of two other materials due to surface forces. The adhering species has a greater affinity for residing at the interface than for either of the other two phases. i2)
- Particle to bubble attachment can be modelled as a series of sub processes. Each of these sub processes has a probability of occurrence, so that the overall probability of adhesion of a particle to a rising bubble, P, is defined as
- Pc is the probability of bubble particle collision
- PA is the probability of particle attachment
- PTPC is the probability of the formation of a stable three-phase contact
- Pstab is the probability that an adsorbed particle will remain stably attached.
- a contact point must form quickly to prevent the particle from immediately detaching from the surface.
- Figure 2 Top cross section view illustrating water solution circulation
- Figure 3 Top cross section view illustrating Air supply and circulation to the Vessel
- FIG. 4 Vessel cross section view with separation Vessels and Water Solution Level (40)
- FIG. 5 Foam forming illustration with different diameters (J, K, L) in Room Spaces (A, B, C) and Clean Air (P) Blowing Out in the process
- Figure 7 Electrical Panel view illustrating Ambient Air Conditions Measurements and Control
- Contaminated dirty air (G) which carry Particulate Matter (M) is sucked through air suction pipe (6) by fan (3) run with electric motor (25) installed in Device Frame (1) and pressurized through pipe (4) in Air Pressure Ring (15).
- Pressurized air (F) is forced to Ejectors (24) through pipes (14), pipe connectors (26) and ⁇ mixing pipes (13).
- Water pump (2) run by electric motor (5) suck water solution with suction connection kit (21) through pipe (7) from collector (9) which is connected to water solution intake (E) by suction pipes (12) and pressurized (D) through pipe (8), distributor (10), pipe connectors (11) and ⁇ mixing pipes (13).
- dirty air is mixing with circulating water solution (I).
- Soap Bubbles (J) creation depends on air and water mixture speed. Air speed is controlling by Fan Electric Motor’s (25) AC Driver (36) and water flow speed is controlling by Automatic Water Flow Control Valve (26) and Flow Control Relay (37).
- Mini Soap Bubbles (J) is filling Room Space (A) surrounded by Inner Separation Vessel (23). Soap Bubbles (J) pass to Room Space (B) through Air Outlet Holes (18.3) in Inner Separation Vessel (23). After filling Room Space (B) Soap Bubbles (K) pass to Room Space (C) through Air Outlet Holes (18.2) in Middle Separation Vessel (22) and getting bigger in diameter. Soap Bubbles (L) fill the Vessel (19) as shown in Fig. 5.
- Soap Bubble diameter depends on diameter of Air Outlet Holes (18) drilled in Vessels. Creating more bubbles means to increase the overall probability of adhesion of a particle to a rising bubble, P OV eraii, as defined in equation (1).
- Water solution (I) is circulating in the Vessel (19) by Water Pump (2). Dirty water (H) is drained by valve (20) and fresh water and small amount of liquid soap is supplied from Water filling Cap (39) inside to Vessel (19).
- Ambient Humidity is measured by Humidity Sensor (31) and monitored by Monitor Screen (34).
- Ultrasonic Air Humidifier (29) is installed in the device in case of need for humidity in the room and Humidity is programmed by PLC (Programmable Logic Control) (35) and working time of Ultrasonic Air Humidifier (29) is set according to measured Ambient Humidity by Humidity Sensor (31). Water (N) returned to Humidity (O) leaves the device together with Clean Air (P) through Outlet Holes (18.1) and (18.4).
- Internet Connection Port (38) device has opportunity in applications for cellphone and Industry 4.0 controls.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
The invention relates to a novel device to capture and clean the air from Particulate Matter (PM). Materials used to catch Nano particles are: Water and soap foam, and relevant chemicals which catch certain air pollutants. The invention is designed to suck and mix outside air with water and soap foam. The mixture is circulating inside the Vessel (19) by water pump (2) and sprayed by ejectors (24). Ejectors (24) split-up air into small pieces in water solution (I). The air is moving up through water solution (I) and soap foam. On the top of the vessel (19), there are felts (16) to catch the water and soap foam drops. Clean air is going out through felts (16) and upper air outlet holes (18) in the wall and on the top of the vessel (19).
Description
A DEVICE FOR CAPTURING AND CLEANING OF NANO PARTICLES FROM
THE AIR
Technical Field of the Invention The invention relates to a novel device and materials to capture and clean the air especially from Particulate Matter (PM) less than PM10 which is a mixture of solid and liquid particles suspended in the air.
Materials used to catch Nano Particles are: Water and soap foam, and relevant chemicals which catch certain air pollutants. The invention is designed to suck and mix outside air with water and soap foam. The mix is circulating inside the Vessel by water pump and sprayed by ejectors. Ejectors split-up air into small pieces in water solution. The air is moving up through water solution and soap foam. On the top of the Vessel, there are felts to catch the water and soap foam drops. Clean Air is going out passing through felts and upper holes outlets in the wall of the Vessel. Background of the Invention
What are the main air pollutants? M 1
Primary air pollutants are directly emitted into the atmosphere e.g. from vehicle exhausts or chimneys. M 1
• PM Particulate Matter (primary) - A mixture of solid and liquid particles suspended in the air. PM10 refers to particles with a diameter larger than 2.5 micrometers and smaller than 10 micrometers. PM2.5 refers to fine particles with diameters of 2.5 micrometers and smaller. Both types can easily be inhaled. M 1
• Primary air pollutants are: S02 - Sulphur Dioxide, NOx - Nitrogen (di)oxide, NH3- Ammonia and VOC - Volatile Organic Compounds. M 1 Secondary air pollutants are formed in the atmosphere through oxidation and reactions between primary air pollutants. M 1
• PM Particulate Matter (secondary) - Formed in the atmosphere from S02 - Sulphur Dioxide, NOx - Nitrogen (di)oxide, NH3- Ammonia and VOC - Volatile Organic Compounds. (1)
• NH3, S02 and NOx react in the atmosphere to form compounds.
These compounds form new particles in the air or condense onto pre-existing particles to form inorganic aerosols. M 1
• Combination of NH3 and SO2 forms ammonium sulphate.
• Combination of NH3 and NOx forms ammonium nitrate.
• Some VOC are oxidized to form compounds, which then form secondary organic aerosols.
The secondary particulates and organic aerosols also affect health, materials, agriculture and the environment. M 1
What are the main sources of air pollutants? M 1
• Electricity and Heat Production
• Commercial and Household Heating
• Industrial and Construction activities
• Petroleum Refining and Storage
• Road Transport
• Agriculture Why are air pollutants a problem? M 1
Air Pollutants have effect directly to human health, materials, agriculture and the environment.
Current situation
As a result of researches based on the invention and similar documents, it has been observed that studies about air cleaning devices have been made. US2585440A patent document discloses improvements in air-cleaners and washers and in particular to an improved air-cleaner and washer for separating air-borne impurities such as dirt, dust, ash, etc., from air in industrial use or in geographical areas where the air is mixed with impurities.
US3811252A patent document discloses air-cleaning device which removes particulate matter from an input air stream and includes a wash section in which spaced apart air stream baffle members are removable adjustably and pivotally secured to supporting walls, a settling tank, a moisture eliminator section, and a suction fan section. According to documents US3811252A and US2585440A water or washing liquids pass through the air stream which contains impurities such as dirt, dust, ash, etc.
According to equation (1) there are fewer probabilities for washing liquids to catch and stably adsorb Particulate Matters less than PM10.
Problem Solving with Physics and Chemistry Theory of particles Adhesion at a solid / liquid / gas interface is controlled by the surface forces and fluid dynamics of the system. Adhesion occurs when a bubble, droplet, or particle of material transfers to and remains at the interface of two other materials due to surface forces. The adhering species has a greater affinity for residing at the interface than for either of the other two phases. i2)
The ability of a solid particle to attach to a bubble surface in a liquid is dependent upon the surface properties of the system. For adhesion to occur, a three-phase contact must exist such that the attractive and repulsive forces of the solid species are in equilibrium. Often, the liquid is an aqueous solution and the bubbles consist of air. An adhering particle will therefore be at least slightly hydrophobic; that is, it will prefer the air phase to the water phase. i2)
Particle to bubble attachment can be modelled as a series of sub processes. Each of these sub processes has a probability of occurrence, so that the overall probability of adhesion of a particle to a rising bubble, P, is defined as
P Overall = P( ' P.A ' PTPC‘ P tab (1)
Where:
Pc is the probability of bubble particle collision, PA is the probability of particle attachment,
PTPC is the probability of the formation of a stable three-phase contact, and
Pstab is the probability that an adsorbed particle will remain stably attached.
The first and second of these probabilities depend strongly on the fluid dynamics of the system, while the third and fourth probabilities depend upon the surface phenomena. i2)
Particle Attachment to Bubble Surface The probability of collision only denotes that a particle has a chance to adsorb to the bubble surface.
Probability of Formation of Three-Phase Contact
Once the thin film has ruptured, three-phase contact points must form between the bubble, particle, and liquid. A contact point must form quickly to prevent the particle from immediately detaching from the surface.
Probability of Attachment Stability
If attachment does occur, a particle must remain adsorbed to the bubble surface in order to be successfully floated.
Probability of Attachment by Sliding This equation requires an estimate for the particle induction time, which is not available. The particle induction time is dependent upon the particle size.
Probability of Formation of Three-Phase Contact Point
The probability of the formation of the three-phase contact point is assumed to be unity for all particle sizes. Probability of Attachment Stability
It’s the probability of particle stability from the forces of attachment and detachment. i2)
Objects and Summary of the Invention
Materials:
To catch hydrophobic particles two common surfactant types in flotation are using in the process of invention: fatty-acid based soaps and sodium silicate/sulfonic acid based surfactants. Invention Efficiency:
According to equation (1) and experiments done with the invented device and materials used in the process report records show that there is no possibility for Particulate Matter (PM) to escape therefore the invention is capturing Particulate Matters (PM) with 100 % efficiency.
Detailed Description of the Invention Figure 1: Front cross section general view of the invention
Figure 2: Top cross section view illustrating water solution circulation
Figure 3: Top cross section view illustrating Air supply and circulation to the Vessel
Figure 4: Vessel cross section view with separation Vessels and Water Solution Level (40)
Figure 5: Foam forming illustration with different diameters (J, K, L) in Room Spaces (A, B, C) and Clean Air (P) Blowing Out in the process
Figure 6: Travel and capture of Particulate Matters (PM) in the invention
Figure 7: Electrical Panel view illustrating Ambient Air Conditions Measurements and Control
Figure 8: Air Ultrasonic Humidifier working principal illustration, humid dust (O) creation and releasing of clean air (P) Explanations of process in the figures have been made as follows:
A. Room Space Created by Inner Separation Vessel (23)
B. Room Space Created by Middle (22) and Inner Separation Vessels (23)
C. Room Space Created by the Vessel (19) and Middle Separation Vessels (22)
D. Water solution way to Vessel (19)
E. Water solution intake
F. Air way to Vessel
G. Dirty Air intake
H. Dirty water flow
I. Water and soap solution in the Vessel
J. Soap Bubbles with diameter up to 2 mm created by water solution circulation from pump in Room Space A
K. Soap Bubbles with diameter up to 4 mm created by passing bubbles from Room
Space A holes (18.3) in Inner Separation Vessel to Room Space B
L. Soap Bubbles with diameter up to 5 mm created by passing bubbles from Room Space B holes (18.2) in Middle Separation Vessel to Room Space C
M. Path of Nano Particulate Matters (PM) Travel
N. Water in Ultrasonic Air Humidifier
O. Water Vapors and Humidity Created by Ultrasonic Air Humidifier
P. Clean Air
The parts in the figures have been numbered as follows:
1. Device Frame
2. Water Pump
3. Air Fan
4. Air Fan Pressure Pipe
5. Water Pump Electric Motor
6. Air Fan Suction Pipe
7. Water Pump Suction Pipe
8. Water Pump Pressure Pipe
9. Water Suction Collector
10. Water Pressure Collector
11. Water Pressure Pipe
12. Water Suction Pipe
13. Mixing Ύ Pipe
14. Air Pressure Pipe
15. Air Pressure Ring
16. Felts
17. Top Cover
18. Air Outlet Holes
18.1. Air Outlet Holes in the Vessel
18.2. Air Outlet Holes in Middle Separation Vessel
18.3. Air Outlet Holes in Inner Separation Vessel
18.4. Air Outlet Holes in Top Cover
19. Vessel
20. Waste Water Outlet Valve
21. Water Suction Connection Kit
22. Middle Separation Vessel
23. Inner Separation Vessel
24. Ejectors
25. Fan Electric Motor
26. Air Pressure Pipe Connection Kit
27. Automatic Flow Control Valve
28. Electric Control Panel
29. Ultrasonic Air Humidifier
30. Particle Counter Sensor
31. Humidity Sensor
32. Thermometer
33. Barometer
34. Monitor Screen
35. PLC - Programmable Logic Control
36. AC Speed Driver - Fan Electric Motor
37. Flow Control Relay
38. Internet Connection Port
39. Water filling cap
40. Water Solution Level Working principle of device
Contaminated dirty air (G) which carry Particulate Matter (M) is sucked through air suction pipe (6) by fan (3) run with electric motor (25) installed in Device Frame (1) and pressurized
through pipe (4) in Air Pressure Ring (15). Pressurized air (F) is forced to Ejectors (24) through pipes (14), pipe connectors (26) and Ύ mixing pipes (13). Water pump (2) run by electric motor (5) suck water solution with suction connection kit (21) through pipe (7) from collector (9) which is connected to water solution intake (E) by suction pipes (12) and pressurized (D) through pipe (8), distributor (10), pipe connectors (11) and Ύ mixing pipes (13). In Ύ mixing pipes (13) dirty air is mixing with circulating water solution (I). The mix of air (F) and water solution (I) is sprayed by Ejectors (24) inside Water solution (I) in the Vessel (19). Spraying the mixture of solution with air (F) in the water solution (I) is creating mini Soap Bubbles (J) with diameter up to 2 mm. Water Solution level (40) and intake (E) is always over Ejectors (24) and under Air Outlet Holes in Middle Separation Vessel (18.2).
Soap Bubbles (J) creation depends on air and water mixture speed. Air speed is controlling by Fan Electric Motor’s (25) AC Driver (36) and water flow speed is controlling by Automatic Water Flow Control Valve (26) and Flow Control Relay (37). Mini Soap Bubbles (J) is filling Room Space (A) surrounded by Inner Separation Vessel (23). Soap Bubbles (J) pass to Room Space (B) through Air Outlet Holes (18.3) in Inner Separation Vessel (23). After filling Room Space (B) Soap Bubbles (K) pass to Room Space (C) through Air Outlet Holes (18.2) in Middle Separation Vessel (22) and getting bigger in diameter. Soap Bubbles (L) fill the Vessel (19) as shown in Fig. 5. Soap Bubble diameter depends on diameter of Air Outlet Holes (18) drilled in Vessels. Creating more bubbles means to increase the overall probability of adhesion of a particle to a rising bubble, POVeraii, as defined in equation (1). Water solution (I) is circulating in the Vessel (19) by Water Pump (2). Dirty water (H) is drained by valve (20) and fresh water and small amount of liquid soap is supplied from Water filling Cap (39) inside to Vessel (19).
Water itself catches hydrophilic Nano Particles (M) and Soap foam catches hydrophobic Nano Particles (M) and increase Probability of Formation of Three-Phase Contact. Felts (16) are installed before Air Outlet Holes (18) to catch water drops and stop soap bubbles to go out from the Vessel (19). Cleaned Air (P) is leaving out the Vessel (19) through Air Outlet Holes (18.1) and (18.4) in Top Cover (17). Particle Counter Sensor (30) counts PM2.5 and PM10 per m3 and is monitored by Monitor Screen (34) mounted in Electric Control Panel (28). Device working time is programmed by PLC (Programmable Logic Control) (35) according to speed of Air Fan (3) set and Particle Counter Sensor (30) feedback to PLC (35). Water solution (I) flow is programmed and controlled by Automatic Flow Control Valve (27) by PLC (35).
Ambient Temperature is measured by Thermometer (32) and shown by Monitor Screen (34).
Ambient Pressure is measured by Barometer (33) and shown by Monitor Screen (34).
Ambient Humidity is measured by Humidity Sensor (31) and monitored by Monitor Screen (34). Ultrasonic Air Humidifier (29) is installed in the device in case of need for humidity in the room and Humidity is programmed by PLC (Programmable Logic Control) (35) and working time of Ultrasonic Air Humidifier (29) is set according to measured Ambient Humidity by Humidity Sensor (31). Water (N) returned to Humidity (O) leaves the device together with Clean Air (P) through Outlet Holes (18.1) and (18.4).
By Internet Connection Port (38) device has opportunity in applications for cellphone and Industry 4.0 controls.
REFERENCES:
(1)
http://ec.europa.eu/research/participants/portal/desktop/en/opportunities/h2020/topics/cleanair
-0l-20l5.html
(2) Particle and bubble interactions in flotation systems, Zachery Ian Emerson, Auburn University, May 10, 2007, Auburn, Alabama
Claims
1. A device for cleaning air comprises,
Water circulation pump (2) which is circulating water solution (I) in the vessel (19) Air circulation fan (3) which is sucking dirty air (G) and pressurized it (F) to Mixing Ύ Pipes (13)
Mixing Ύ Pipes (13) which is mixing dirty air (G) with circulating water solution
(I)
Ejectors (24) which is spraying mixture of air (F) and water solution (I) inside the vessel (19) in water solution (I) in room space (A)
vessel (19) cleaned air (P) is leaving out through air outlet holes (18.1) and (18.4) Middle Vessel (22) after filling room space (B) soap bubbles (K) pass to room space (C) through air outlet holes (18.2)
Inner Vessel (23) soap bubbles (J) pass to room space (B) through air outlet holes (18.3)
2. A device according to claim 1, comprises particle counter sensor (30) which counts PM2.5 and PM10 particles per m3
3. A device according to claim 1, comprises humidity sensor (31) which measuring the ambient humidity.
4. A device according to claim 1, comprises thermometer (32) which is measuring the ambient temperature.
5. A device according to claim 1, comprises barometer (33) which is measuring the ambient pressure
6. A device according to claim 1, comprises electrical panel (28) for monitoring and controlling of process parameters.
7. A device according to claim 1, comprises installed Ultrasonic Air Humidifier (29).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP18935423.6A EP3856391A4 (en) | 2018-09-24 | 2018-09-24 | A device for capturing and cleaning of nano particles from the air |
| PCT/TR2018/050520 WO2020068007A1 (en) | 2018-09-24 | 2018-09-24 | A device for capturing and cleaning of nano particles from the air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/TR2018/050520 WO2020068007A1 (en) | 2018-09-24 | 2018-09-24 | A device for capturing and cleaning of nano particles from the air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020068007A1 true WO2020068007A1 (en) | 2020-04-02 |
Family
ID=69952406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/TR2018/050520 WO2020068007A1 (en) | 2018-09-24 | 2018-09-24 | A device for capturing and cleaning of nano particles from the air |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP3856391A4 (en) |
| WO (1) | WO2020068007A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002079025A (en) * | 2000-09-06 | 2002-03-19 | Kanto Auto Works Ltd | Method for filtering suspended fine particulate and apparatus thereof |
| WO2018048204A1 (en) * | 2016-09-12 | 2018-03-15 | 류이하 | Wet type air washer |
| CN108554085A (en) * | 2018-04-13 | 2018-09-21 | 蒋瑞璋 | A kind of air purification method and its purifier removed PM2.5 and realize indoor and outdoor air purification convection current |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3768234A (en) * | 1969-12-17 | 1973-10-30 | Universal Oil Prod Co | Venturi scrubber system including control of liquid flow responsive to gas flow rate |
| US5900216A (en) * | 1996-06-19 | 1999-05-04 | Earth Resources Corporation | Venturi reactor and scrubber with suckback prevention |
| AU9616798A (en) * | 1997-10-08 | 1999-05-03 | D. Andrew Trivett | Gas scrubber |
| KR20030064456A (en) * | 2002-01-28 | 2003-08-02 | 김용곤 | Air Cleaning Device and Method for Cleaning Contaminated Air |
| KR200318791Y1 (en) * | 2003-03-06 | 2003-07-04 | 김현채 | Air-purifier |
| KR101862147B1 (en) * | 2016-10-31 | 2018-05-31 | 주식회사 포스코 | Dust collecting equipment |
| KR101880526B1 (en) * | 2017-09-29 | 2018-07-20 | (유)인터테크 | deodorization apparatus using microorganisms |
-
2018
- 2018-09-24 EP EP18935423.6A patent/EP3856391A4/en not_active Withdrawn
- 2018-09-24 WO PCT/TR2018/050520 patent/WO2020068007A1/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002079025A (en) * | 2000-09-06 | 2002-03-19 | Kanto Auto Works Ltd | Method for filtering suspended fine particulate and apparatus thereof |
| WO2018048204A1 (en) * | 2016-09-12 | 2018-03-15 | 류이하 | Wet type air washer |
| CN108554085A (en) * | 2018-04-13 | 2018-09-21 | 蒋瑞璋 | A kind of air purification method and its purifier removed PM2.5 and realize indoor and outdoor air purification convection current |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3856391A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3856391A1 (en) | 2021-08-04 |
| EP3856391A4 (en) | 2022-05-11 |
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