KR101382140B1 - Air pollutants removal equipment with multifunction for effective scrubbing of particulate matter and gas absorption - Google Patents

Abstract

The present invention relates to an air pollutant removal apparatus with multifunction for the effective cleaning of particulates and gas absorption for removing exhaust gas from waste incinerator, polluting gas from industrial process, and bad smell substances in the air. The air pollutant removal apparatus with multifunction for the effective cleaning of particulates and gas absorption includes multiple cleaning absorption modules each of which consists of a cleaning absorption solution inlet, a cleaning absorption solution outlet, a gas-liquid separator, and a gas-liquid contact in a horizontal direction. The air pollutant removal apparatus with multifunction for the effective cleaning of particulates and gas absorption includes a polluting gas inlet, a treated gas outlet, and an undercurrent wall for the cleaning absorption modules so that the polluting gas can passes through the cleaning absorption modules in order, but the cleaning absorption solutions independently put in and out each cleaning absorption module so that various pollutants can be treated in one reactor according to the use of various cleaning absorption solutions. The gas-liquid contact includes a perforated plate, a gas-liquid contact media, and a polluting gas collision and undercurrent device so air pollutants such as bad smell substances, sulfur oxides, nitrogen oxides, carbon monoxide, carbon dioxide, volatile organic chemical materials, and lead can be effectively removed. [Reference numerals] (AA) Treated gas; (BB) Polluting gas; (CC) Blower; (DD) Cleaning absorption module 1; (EE) Cleaning absorption module 2; (FF) Cleaning absorption module 3; (GG) Cleaning absorption solution 1; (HH) Cleaning absorption solution 2; (II) Cleaning absorption solution 3

Description

Air pollutants removal equipment with multifunction for effective scrubbing of particulate matter and gas absorption}

The present invention relates to a multi-functional air pollution treatment apparatus for the treatment of exhaust gases from boilers and waste incinerators, polluting gases from industrial processes, odorous substances in the air, and the production of clean air, and includes dust, odorous substances, and sulfur oxides (SOx). Air pollutants such as nitrogen oxides (NOx), carbon monoxide (CO), carbon dioxide (CO ₂ ), volatile organic compounds (VOC), and lead in a variety of cleaning and absorption solutions It is a technology that treats air pollutants and achieves compactness and ease of operation.

The multifunctional air pollution treatment device has several cleaning absorption modules arranged in a row in the horizontal direction, and each cleaning absorption module can introduce different cleaning absorption solutions to achieve optimal cleaning and absorption efficiency for each type of air pollutant. A vertical reservoir wall is installed between the absorption module and the cleaning absorption module to prevent mixing of the cleaning absorption solution.

Therefore, the contaminated gas mixed with various types of air pollutants can be optimally processed in one reactor, and thus the device can be miniaturized and easily operated.

For example, in the treatment of exhaust gas from power plants or industrial boilers, dust and sulfur dioxide (SO ₂ ) are removed using water as a cleaning absorption solution, and carbon dioxide (CO ₂ ) is removed using a cleaning absorption solution such as an amine solution. If it is a very effective technique.

Air pollutants generated during combustion in industrial power plants, industrial boilers, waste incinerators, or emitted by industrial processes include particulate matter, sulfur oxides (SOx), nitrogen oxides (NOx), carbon monoxide (CO), and carbon dioxide (CO _2). ), Volatile organic compounds (VOC), lead, and odorous substances.

Although there is a big difference depending on the fuel used at the power plant, a large amount of dust, SOx, NOx and CO ₂ are emitted, and various air pollutants are emitted from waste incinerators, nitric acid plants, sulfuric acid plants, copper smelters, and steel mills. Outbreaks often become social problems.

To remove air pollutants, various technologies such as dry and wet are applied. Wet cleaning technology is effective for removing gaseous substances such as sulfurous acid gas as well as particulate matter such as dust. In recent years, the capture of carbon dioxide (CO ₂ ), a major source of global warming, has become very important.

Wet scrubber is a wet method for dust removal. The scrubber is sprayed with water, and dust particles are attached to and removed from the liquid droplets, and the water droplets are applied to the collision and blocking principle of separating from the gas by gravity. The types of scrubbers are very diverse, such as sprinkling tower cleaners, centrifugal sprinkler towers, orifice cleaners, collision cleaners, packed plate collision cleaners, venturi cleaners, venturi jet cleaners, and mechanical wet cleaners.

In a sprinkler tower scrubber, air containing dust passes through a cylindrical or rectangular tower and contacts a liquid droplet created by spray nozzles. The droplet size is adjusted to optimize contact with dust and to easily separate the droplet from the air stream.

Gas-liquid contact has counter current and cross flow, and a baffle is also used to improve gas-liquid contact.

Appropriate droplet sizes are obtained from spray nozzles with very high pressure 35 to 50 Psi (25 to 30 mH ₂ O) and cleaning and replacement of nozzles is an important part of the tower maintenance. The counter current flow tower has a high disadvantage of 6 to 9m to allow sufficient contact with the pollutant gas and droplets. The cross flow tower is very long.

The energy consumption of the water tower is determined by the power required of the blower and the cleaning liquid supply pump, and structurally, a single cleaning liquid such as water is used.

The centrifugal spray chamber rapidly introduces contaminant gas into the reactor in a tangential direction and sprays the cleaning liquid from the center to the outside. The centrifugal force promotes droplet separation but requires high pressure by the blower and is structurally single. There is no choice but to use a cleaning solution.

In orifice scrubbers, contaminant gases impinge on the surface of the cleaning liquid and then impinge on the continuously installed baffles. In the wet collision cleaner, the gas-liquid mixture passes through the perforated plate covered with the cleaning liquid and foam. Afterwards, it collides with the plate installed in the upper part of the hole. Blowing pressure loss is high as 20 ~ 30 cmH ₂ O, structurally forced to use a single cleaning liquid.

Venturi scrubber has a structure that flows into the scrubber while sucking the scrubbing liquid by the low pressure of Venturi throat through which pollutant gas passes.

In the above-mentioned prior art, a single cleaning liquid, such as water, is produced by droplets in various ways to come into contact with the polluting gas, thereby causing entrainment of splash droplets due to the rapid pollutant gas flow rate. Therefore, a non-droplet entrainment prevention device (Entrainment eliminator) such as a one-line barrier, two-line barrier, W-type separator, corrugated separator, tear-shaped separator and the like.

Adsorption and absorptive methods are used to remove gaseous contaminants. Gas adsorption is applied to remove odorous substances using adsorbents such as activated carbon, activated alumina, silica gel, recovery of volatile organic solvents such as benzene and ethanol, and drying of process gas in a dry state. Gas absorption is the process of dissolving the target gaseous contaminants in the absorption solution to remove sulfur oxides (SO _x ) generated during the combustion process, ammonia removal and recovery from the fertilizer plant, and the removal of hydrofluoric acid (HF) from the glass furnace exhaust gases. It is widely used for water soluble solvent recovery such as acetone and methyl alcohol, and removing odorous substances generated in sewage treatment plant or industrial process.

In the gas absorption device, the absorption liquid is sprayed from the upper part of the gas absorption device filled with various shapes of packing materials in order to increase the gas-liquid contact area so that the gaseous contaminants are transferred to the absorption solution and can be dissolved well. Flows downward to allow the packed bed in a wet state to pass upward to remove gaseous contaminants. There are various fillings such as Berl saddle, Intalox saddle, Raschig ring, Lessing ring, Pall ring, Tellerette. The gas absorber using the filler has the disadvantages of high blower pressure loss due to the filler, high structure height, and high cost of the filler.

If the gas flow rate is fast, the size of the structure will be smaller, but the power cost will be higher. If the gas flow rate is higher than the flood point or the flooding point, the absorbing solution will be pushed up by the upward gas flow rate. It is determined at about 40 to 70% of the flow rate.

The prior gas absorber also has the disadvantage of structurally using a single absorption solution. For example, sulfurous acid gas (SO ₂ ) in the exhaust gas after combustion is well dissolved in water, and water can be used as an absorbent, but nitrogen oxide (NOx) is suitable as an absorbent liquid in terms of dissolution rate. Ozone-soluble water and chlorine-soluble water having oxidative power are effective, and powdered activated carbon slurry capable of adsorbing and removing odorous substances can also be used. Therefore, in order to effectively treat various kinds of air pollutants, it is necessary to use an appropriate cleaning absorbing solution for each pollutant.

"Water treatment apparatus and method using a porous plate" of the Republic of Korea Patent Registration No. 10-0349214 has been filed by the applicant of the present application to place the porous plate of the multi-stage in the reaction tank and as the bubbles of the dissolved gas discharged from the acid machine rises by buoyancy As well as staying in the perforated plate as well as passing through the hole of the perforated plate is chopped finely to maximize the dissolved efficiency of the gas.

"Gas dissolving device for water and sewage treatment" of the Republic of Korea Patent Registration 10-1010893 has been filed by the applicant of the present application, the gas dissolving device is composed of a porous plate, bubble collection and dissolution module, bubble desorption medium and the porous plate is By increasing the residence time of bubbles and splitting the bubbles into small pieces, gas dissolution is effectively caused. Bubble collecting and dissolving modules with a porous structure on the side can collect and store bubbles, increasing the residence time of gases and simultaneously The technique allows water and gas to be mixed and increases the residence time of bubbles until small bubbles adhere to the surface of the media in the bubble desorption medium.

"Gap structure gas dissolving device for water and sewage treatment" of Korean Patent Registration No. 10-1163097 has been filed by the applicant of the present application, and the gap between the reservoir plate, bubble collection and dissolution module, reservoir plate and reservoir plate, reservoir plate and bubble in the reactor The gap between the trapping and dissolving module, the bubble trapping and the gap between the dissolving module and the bubble trapping and dissolving module is formed so that the reservoir plate rises from the bottom as buoyant bubbles rise by buoyancy from the bottom and rises from the bottom. And gas dissolution continues with increasing gas retention time in the process of colliding with the gas, and the bubble trapping and dissolution module forms gas storage space and gas dissolving boundary in the internal space, thereby continuing gas dissolution with increasing gas residence time. It's a technology.

Conventional cleaning and dust collecting apparatus has a structure in which dusts generated by jetting a single high-pressure cleaning liquid are brought into contact with dust in the polluted gas by using nozzles, and the height of the structure is high or long and the problem of clogging of the nozzles and energy consumption of the cleaning liquid pump are high have. In addition, the wet gas absorber is a structure in which a single absorbent liquid is sprayed on the filler and the gaseous contaminants are dissolved and removed in the absorbent liquid flowing through the filler surface. In particular, when capturing carbon dioxide (CO ₂ ) that causes global warming from exhaust gases, a special solvent such as an amine liquid is used as a general cleaning absorption solution such as water for absorbing sulfurous acid gas, so that a special solvent such as an amine liquid is used. When applied, two or more absorption systems must be installed independently. As the size of the structure increases, the construction cost increases and operation maintenance becomes inconvenient. Alkaline cleaning solution is effective for the absorption of nitrogen oxides (NOx), so additional cleaning solution injection system is required in addition to water. In addition, in the prior art, since the sprayed cleaning solution droplets are discharged together due to the rapid rising flow rate of the polluting gas, it is necessary to install an scattering drop entrainment prevention apparatus (Entrainment eliminator) on the outlet side.

Accordingly, the present invention relates to Korean Patent Nos. 10-0349214 (“Water Treatment Apparatus and Method Using Porous Plates”), 10-1010893 (“Gas Dissolving Device for Water and Wastewater Treatment”), 10-03. Combination of the technology of 1163097 (“Gap structure gas dissolving device for water and sewage treatment”) constitutes a cleaning absorption module suitable for pollutant gas treatment, and is arranged in series in the horizontal direction and vertical storage for separation of the cleaning absorption module. By installing the wall, the cleaning absorbent solution can be flowed out independently by each cleaning absorber module, so that various kinds of cleaning absorbent solution can be used in one reactor, so that various air pollutants can be efficiently treated.

In the present invention, a plurality of cleaning absorbent modules consisting of a cleaning absorbent solution inlet, a cleaning absorbent solution outlet, a cleaning absorbent solution gas-liquid separator, and a gas-liquid contact unit are arranged in succession in the horizontal direction, and each cleaning absorbent module uses a vertical reservoir wall for separating the cleaning absorbent module. The pollutant gas can pass through each cleaning absorption module in turn, but the cleaning absorption solution can flow in and out independently for each module, so that various kinds of air pollutants can be treated in one reactor according to the use of various cleaning absorption solutions. Make it possible.

In addition, the gas-liquid contact unit is constructed by combining a porous plate, a gap, a contaminant gas collision and reservoir, and a gas-liquid contact medium for effective contact between the polluting gas and the cleaning absorbing solution.

Unlike the conventional cleaning and absorption method in which the air pollutants in the polluted gas are injected into the liquid droplets, the air-liquid contact part attaches and dissolves the air pollutants in the polluted gas bubbles generated from the porous plate and the gap into the cleaning liquid. Because of this use, bubble splitting by porous plates, gas-liquid mixing by turbulent flow, gas-liquid contact by gas-liquid contact medium, contaminated gas collision, and gas-liquid contact by reservoir are effectively achieved while scattering liquid dropping discharge is very low.

In the prior art, the height of the wet scrubber structure, high pressure nozzle maintenance, and scattered liquid dropping discharge problems, while in the present invention, the height of the device is significantly lower, and the strong gas-liquid contact in the minimum gas-liquid contact portion is effective in a short time. In particular, it is possible to use several types of cleaning absorbing solutions in a plurality of cleaning absorbing modules arranged in a horizontal direction, so that various types of air pollutants are treated in one reactor. In addition, in the liquid-liquid contact principle, the apparatus of the present invention has an effect of exhibiting very low splash liquid dropping discharge phenomenon.

1 is a cross-sectional view of a multi-functional air pollution treatment apparatus having a cleaning absorption module consisting of a cleaning absorption solution inlet, a cleaning absorption solution outlet, a cleaning absorption solution gas-liquid separator, and a gas-liquid contact portion, and a vertical storage wall for separating the cleaning absorption module.
Figure 2 is an exemplary configuration of the gas-liquid contact portion of the present invention.
Figure 3 is a position view of the vertical reservoir wall and the horizontal porous plate for inducing the influent pollutant inflow of the present invention.
Figure 4 is a structure of the cleaning absorbing solution gas-liquid separator of the present invention.

Detailed description of the implementation of the present invention will be described in detail with reference to FIGS. As illustrated in FIG. 1, the air pollution treatment device 1 includes a cleaning absorbing solution inlet 10, a cleaning absorbing solution outlet 11, a cleaning absorbing solution gas-liquid separator 12, and a vertical reservoir wall for inducing inflow of polluted gas. 3), the cleaning absorbing module lower space (4), the gas-liquid contacting portion (5), the cleaning absorbing module upper space (9) consisting of a plurality of cleaning absorbing modules arranged in succession in the horizontal direction, blower, polluted gas inlet (13) ), The processing gas outlet 14, and the vertical storage wall 15 for separating the cleaning absorbing module.

The polluted gas introduced into the polluted gas inlet 13 of the air pollution treatment device 1 by the blower is blown under the vertical reservoir wall 3 for inducing the equal flow of polluted gas of the cleaning absorption module 2 and the atmosphere. It passes evenly through the gap space between the bottom surface of the pollution treatment device 1 into the cleaning absorbing module lower space (4). In order to ensure uniformity of inflow, it is important to install the lower end of the vertical reservoir wall 3 for inducing the inflow of polluted gas equally horizontally.

The polluted gas introduced into the lower portion of the cleaning absorbing module 4 rises while pushing up the cleaning absorbing solution that is continuously introduced, stored, or discharged through the cleaning absorbing solution inlet 10 by the pressure. It passes through the horizontal porous plate 6 of the lower portion of the gas-liquid contact portion (5).

As shown in Fig. 3, the height of the structure can be minimized by making the position of the bottom of the vertical reservoir wall 3 and the horizontal perforated plate 6 similar for inducing the inflow of polluting gas evenly, and the horizontal clearance height of the gas inflow is about 1 to 5 cm. Is enough.

The polluted gas passing through the horizontal porous plate 6 is split into small bubbles by the holes of the porous plate. The diameter of the hole is suitable for 0.5 ~ 2mm and the number of holes per unit area affects the blowing pressure loss. The small broken bubbles rise by buoyancy and pressure to make gas-liquid contact, and in this process, air pollutants are removed by moving to the cleaning absorbing solution.

As shown in Figs. 1 and 2, the gas-liquid contact medium 7 can be laid with the support of the horizontal porous plate 6 in the gas-liquid contact portion 5 as a support. The gas-liquid contact medium 7 is made of fiber yarn, crushed stone, limestone pellets, packings of various shapes, and the like. When rising bubbles collide with the surface of the various gas-liquid contact medium 7, strong turbulence occurs, the gas-liquid contact effect is increased, and small bubbles increase the gas-liquid contact time while going through the attachment and desorption process on the filler surface.

In the gas-liquid contacting portion 5, a contaminant gas collision and a reservoir 8 may be provided in addition to the horizontal porous plate 6 or the gas-liquid contacting medium 7. The polluted gas collision and reservoir (8) is a structure in which gas bubbles are contacted by colliding, collecting, and storing the bubbles rising from the bottom in the shape of the “c” shaped angle upside down on the top of the inside of the pollutant gas collision and the reservoir (8). to be.

Horizontal perforated plate (6), gas-liquid contact medium (7), polluted gas collision and reservoir (8) is effectively supported by the gas-liquid contact by the mechanism of gas splitting, gas-liquid mixed turbulence, gas collision and storage (Support) It is preferable to install the horizontal perforated plate 6, which serves as a combination thereof, and to combine the gas-liquid contact medium, the contaminated gas collision, and the reservoir as necessary.

Dust, malodorous substances, sulfur oxides (SOx), nitrogen oxides (NOx), carbon monoxide (CO), carbon dioxide (CO ₂ ), volatile organic compounds (VOC), air pollutants such as lead are removed.

The gas passing through the gas-liquid contacting part 5 moves to the next cleaning absorption module 2 through the upper space of the upper portion of the cleaning absorption module upper space 9 and the vertical storage wall 15 for separating the cleaning absorption module.

The cleaning absorbing solution introduced into the cleaning absorbing module 2 through the cleaning absorbing solution inlet 10 of the cleaning absorbing module 2 is replaced with an air pollutant at the gas-liquid contacting part 5 by an air pollutant. It is discharged through the cleaning absorption solution outlet 11 through the residence time.

The residence time is determined by the volume of the gas-liquid contact portion 5 and the flow rate of the cleaning absorbing solution, and is determined in consideration of the type and concentration of the air pollutant to be removed, the cleaning absorbing solution used, and the target removal rate.

In discharging the cleaning absorbent solution, the cleaning absorbent solution in the gas-liquid contacting portion 5 is a gas-liquid mixture, so that gas must be excluded before being discharged. Therefore, as shown in FIG. 4, the box-shaped box for cleaning absorption solution gas-liquid separator 12 is provided with the cleaning absorption module 2. Attach and install inside.

The bottom surface of the cleaning absorbing solution gas-liquid separator 12 blocks air bubbles rising from the lower portion, that is, the horizontal porous plate 6, to the vicinity of the cleaning absorbing solution outlet 11. The upper portion of the cleaning absorbing solution gas-liquid separator 12 is open, and the gas bubbles in the gas-liquid mixture in the gas-liquid contacting part 5 rise upwards and the cleaning absorbing solution flows over to flow into the bottom of the cleaning absorbing solution gas-liquid separator 12. This is discharged through the cleaning absorbent solution outlet (11).

The above-described matter is an example of using the cleaning absorbing solution 1 in the cleaning absorbing module 1, that is, the cleaning absorbing module 1 of FIG. 1. By going through 2, it effectively handles various air pollutants.

As described above, the present invention can vary the configuration of the gas-liquid contact portion for each of the plurality of cleaning absorption modules, and the cleaning absorption solution can also be selected differently according to the needs of the modules.

The treatment gas outlet 14 may be mounted on the upper portion of each cleaning absorption module 2 to select whether to operate the individual cleaning absorption module 2 according to the valve opening and closing of the treatment gas outlet 14 and whether the cleaning absorption solution is supplied. have.

For example, if one of the three cleaning absorbing modules 2 of FIG. 1 is closed and the processing gas outlet 14 of FIG. 1 is closed and the cleaning absorbing solution is supplied to all the modules, all three modules are operated and the processing gas is 3 times. After passing through the module, it is finally discharged.

On the other hand, if the process gas outlets 1 and 2 are closed and the cleaning absorption solution is supplied only to the module 3, only the cleaning absorption module 3 is operated.

Odor substances generated in sewage treatment plants and the like or volatile organic compounds (VOCs) produced in industrial processes are oxidized and removed by oxidizing gases such as ozone. When the oxidizing or reducing gas is injected into the polluting gas inlet 13, the oxidizing or reducing reaction is introduced into the cleaning absorption module in a state in which the polluting gas and the injected gas are mixed, and then dissolved in a cleaning absorbing solution such as gas and water. In order to remove pollutants, inflow of oxidizing or reducing gas into the air pollution treatment device may be effective.

There is a wide variety of cleaning and absorption solutions to choose from. For example, most commonly used water and carbon dioxide absorbents such as amine liquids, powdered activated carbon, zeolites, adsorbent slurries such as activated alumina, powdered limestone slurries for SOx removal, alkaline cleaning solutions for NOx removal, Ozone dissolved water or chlorine dissolved water for oxidative removal of pollutants.

1: air pollution treatment device 2: cleaning absorption module
3: Vertical reservoir wall for inducing inflow of polluted gas uniformly
4: Lower space of cleaning absorption module 5: Gas-liquid contact part
6: horizontal perforated plate (liquid contact medium support)
7: Gas-liquid contact medium 8: Contaminated gas collision and storage
9: upper space of cleaning absorption module 10: cleaning absorption solution inlet
11: cleaning absorption solution outlet 12: cleaning absorption solution gas-liquid separator
13: polluted gas inlet 14: treated gas outlet
15: Vertical storage wall for cleaning absorption module separation

Claims (9)

Cleaning absorption module consisting of cleaning absorption solution inlet, cleaning absorption solution outlet, cleaning absorption solution gas-liquid separator, vertical reservoir wall for inducing inflow of polluting gas, cleaning absorption module lower space, gas-liquid contacting part, and cleaning absorption module upper space Or in the air pollution treatment apparatus is provided with a plurality in series and formed with a blower, polluting gas inlet, processing gas outlet, the vertical reservoir wall for separating the cleaning absorption module,
The polluted gas introduced into the polluted gas inlet is uniformly introduced into the lower space of the cleansing absorbing module through the lower portion of the vertical storage wall for inducing the equal flow of polluting gas of the cleansing absorbing module by the blowing pressure, and the introduced contaminated gas is the pressure and buoyancy force. As it moves up to the gas-liquid contact part, dust, odorous substances, sulfur oxides (SOx) and nitrogen contained in the contaminated gas during the effective gas-liquid contact by bubble splitting, gas-liquid mixed turbulence, gas collision and storage, gas-liquid contact medium, etc. Atmospheric pollutants such as oxides (NOx), carbon monoxide, carbon dioxide, volatile organic compounds (VOC), and lead are quickly removed and removed from the cleaning absorbing solution through the cleaning absorbing solution inlet, and the cleaning absorbing solution is removed. After the gas is removed by the cleaning absorbing solution gas-liquid separator, it is discharged through the cleaning absorbing solution outlet. Multifunctional air pollution treatment device having a structural feature that passes through the upper portion of the vertical storage wall for separation of the absorption module and then moves to the next cleaning absorption module to remove air pollutants and finally discharges through the processing gas outlet.
The method according to claim 1,
Multifunctional air pollution treatment device having a structural feature that can be selected by the air absorption material that is optimally processed by each cleaning absorption module by changing the type of cleaning absorption solution for each cleaning absorption module.
The method according to claim 1,
The vertical storage wall for separating the cleaning absorption module is located between the cleaning absorption module and the cleaning absorption module to pass the polluting gas, and to prevent the mixing of the cleaning absorption solution flowing into each cleaning absorption module. .
delete The method according to claim 1,
The lower end of the vertical reservoir wall for inducing the equal inflow of polluted gas is installed to form a horizontal gap spaced apart from the bottom of the device to have a structural feature to allow the polluted gas to flow into the lower space of the cleaning absorption module at a uniform and fast flow rate. Multifunctional air pollution treatment device.
The method according to claim 1,
The gas-liquid contacting unit independently selects one or two or more of a gas-liquid contact medium composed of horizontal perforated plates, crevices and fibers, crushed stone, limestone pellets, fillers of various shapes, and pollutant gas collisions and reservoirs for each cleaning absorption module. Multifunctional air pollution treatment device having a structural feature to form.
The method according to claim 1,
The cleaning absorbing solution gas-liquid separator blocks a rising bubble from the lower side of the cleaning absorbing solution outlet to prevent the discharge of the gas through the cleaning absorbing solution outlet, and discharges only the cleaning absorbing solution separated from the gas-liquid solution into the cleaning absorbing solution outlet. Having multifunctional air pollution treatment device.
The method according to claim 1,
Multifunctional air pollution treatment device having a structural feature that can select the operation combination of the cleaning absorption module according to the opening and closing of the processing gas outlet and the cleaning absorption solution supplied to the cleaning absorption module.
The method according to claim 1,
Injecting oxidizing gas or reducing gas such as ozone gas into the polluting gas inlet, the polluting gas and the injected gas are introduced into the cleaning absorption module, and then odor in the gas state and dissolved in the cleaning absorbing solution such as water. A multifunctional air pollution treatment device having a function of removing an air pollutant to be treated by oxidizing or reducing an air pollutant such as a substance or volatile organic compound (VOC).

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