KR101005636B1 - Purification system for removing noxious gases and all maloder by using underwater plasma generation apparatus - Google Patents

Abstract

PURPOSE: A complex bad smell removing purification apparatus using an underwater plasma generating device is provided to purify polluted gas, and to secure the excellent process efficiency. CONSTITUTION: A complex bad smell removing purification apparatus using an underwater plasma generating device comprises the following: the underwater plasma generating device(100) including an underwater plasma reactor, a regulator, a electronic neon-transformer, and a porous bubbling unit; a tower type cleaning device(200) including a water treatment tank(204), promoting the forced circulation and the contact oxidation reaction of plasma processing water; and an activated charcoal hollow tower(300) for processing high concentration generated discharge ozone generated from plasma.

Description

Purification system for removing noxious gases and all maloder by using underwater plasma generation apparatus}

The present invention purifies harmful gas and mixed odors by using underwater plasma to efficiently purify a large amount of harmful gases and mixed odors by efficiently connecting and grafting underwater plasma technology and a scrubber type cleaning device. It's about the system.

In general, various techniques are used to treat odors and pollutants emitted from sources of toxic gases, such as livestock complexes, food treatment plants, sewage and wastewater treatment and manure treatment plants, and industrial complexes.

At present, the most widely used technologies include adsorption and cleaning, and in particular, air pollution prevention facilities include an A dust collector, an activated carbon tower, and a scrubber. Among them, scrubbers are most frequently applied because they can simultaneously treat odors and harmful gases, dust, and liquid pollutants.

The scrubber is also called a gas absorption tower, and generally refers to a dust collecting facility by cleaning. The scrubber is divided into dry, wet, and mixed according to the type and use, and a wet scrubber having a higher efficiency than the dry scrubber is used. Wet scrubber is a method of purifying pollutants by contacting and flushing harmful gases with liquid.In order to improve the purification efficiency, expensive scrubbers are usually used to generate expensive chemical reactions such as absorbents such as sodium hydroxide and sulfuric acid or cleaning agents. Use with water. This is to enhance the treatment efficiency by increasing the contact rate with harmful gases and purifying the water in which pollutants are dissolved when water containing chemicals is injected.

However, wet scrubbers require rapid replenishment of expensive chemicals due to rapid consumption of chemicals due to reaction with chemicals and chemical reactions, and significant costs such as additional equipment and operating costs for reacting chemicals and polluting gases. There is a problem that this takes.

One of the biggest problems is that 1) the use of expensive chemicals makes continuous operation impossible, and 2) the wastewater containing chemicals and pollutants is generated secondly after the hazardous gas treatment process. In particular, when the generated wastewater is discharged without a separate treatment process, another type of environmental pollutant, such as water pollution, is generated, which has a critical disadvantage of solving the problem of secondary wastewater treatment.

Recently, in order to solve the above problems, technologies have been developed to increase the purification efficiency by injecting ozone into water using ozone water or by simultaneously supplying chemicals and ozone, which uses ozone having high oxidation power. To deal with harmful gases and odors, and to reduce the secondary water generated. However, the ozone generator for supplying ozone requires high power consumption, and is required to supply high-purity oxygen to generate high concentration of ozone, so it is limited to the place where the generation device of high purity oxygen is needed or additional equipment is needed. In addition, in order to generate or maintain the dissolved ozone above a certain level, the ozone generator needs to be operated for several hours, so a considerable operating cost is required, and thus continuous operation is difficult and causes the size and maintenance cost of the scrubber to increase. .

On the other hand, general water treatment technology can be roughly divided into physical and chemical treatment, biological treatment, and multi-stage treatment. However, a lot of researches are currently being carried out to see a better water treatment effect beyond these technologies, and a lot of research is being conducted around a so-called advanced water treatment technology. The above-mentioned kinds of advanced water treatment technologies include 1) electrochemical method, 2) water and water treatment technology using electricity and magnetism, 3) water treatment technology using ultraviolet rays, and 4) plasma. There is a water treatment technique used.

Water treatment technology using plasma is a low-temperature plasma process, which was used to remove harmful gases in the air environment in the past, but unlike conventional water treatment technology, it does not require chemical input, it is easy to process, and secondary pollution occurs. Recently, a new concept of water treatment technology has emerged, and the discharges forming low temperature plasma include pulse streamer discharge, silent discharge, partial discharge, creepage discharge, and corona discharge. Electric discharges for water pollutant treatment have been actively conducted in the United States, Japan, the Netherlands, the Czech Republic, Russia and Canada since the late 1980s. The generation of high voltage pulse discharges in water or on the surface initiates a variety of physicochemical processes that generate UV, shock waves, and chemically active species such as H, O, OH, and hydrogen peroxide (H ₂ O ₂₎ . In the gas discharge close to the surface of the water, when oxygen is present in the background gas, high concentrations of ozone and active radicals are generated and are easily dissolved in water to participate in the process of removing pollutants.

In particular, when using air as the inlet gas of the plasma generator, the main reaction equation expected in the plasma generator is as follows, and radicals such as O, OH, H, N, and HO ₂ including O ₃ are generated and such an unstable product They react secondarily with pollutants or oxygen to form peroxides or new forms of radicals, resulting in chain oxidative degradation reactions, which are difficult to decompose, harmful gases and odors in the atmosphere, colors and ㆍ It can be widely applied to the purification of pollutants such as sterilization of waste water.

N ₂ + e → N + N + e Equation 1

 N₂ + e → N₂ ^- Equation 2

O ₂ + e → 2O + e Equation 3 Equation 3

O ₂ + e → O ₂ ^- Equation 4

H ₂ O + e → H + OH + e Equation 5

O + e → O ^- equation 6

O ₂ + H → HO ₂ Formula 7

H ₂ O + O → 2OH Equation 8

O + O ₂ → O ₃ Equation 9

N ₂ + O ₂ → N ₂ + ₂ O Equation 10

At present, too much plasma discharge technique for water treatment has been studied, and it is already proved by many academic experiments that it is very good effect when plasma is added to water and its value is recognized.

However, to date, almost all technologies are very difficult to generate plasma due to the conductivity of water when plasma is generated in water, and short-circuit prevention technology must be applied. Electrodes on the surface of the surface for water surface discharge or electrodes coated with a coating film. These devices are difficult to install due to their large size and heavy weight, and have disadvantages due to high power consumption, high price, and difficulty in operation and maintenance.

In addition, recently, techniques for generating discharge in water using various dielectrics have been studied, but due to the fact that there is still a problem such as short circuit or sudden decrease in discharge efficiency due to failure to maintain stable discharge in water, Has not been approached.

On the other hand, by solving the problems of the plasma water treatment technology by the present applicant for the first time developed a commercially available entry-level underwater plasma technology and registered a patent (No. 10-0932377, 2009.12.08, Method of water purification using high density underwater plasma torch / 10-0924649, October 26, 2009, Generator and method of high desity underwater plasma torch.

Accordingly, the present invention is to provide a hybrid purification system of a new concept that can simultaneously purify the water, harmful gases and complex odors used in the cleaning device by applying and improving the techniques registered by the applicant.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to effectively connect and couple an underwater plasma technology and a wet scrubber-type cleaning device to damage an electrically charged high density underwater plasma treated water. Purification system for removing harmful gases and mixed odors using an underwater plasma generator to increase dust collection efficiency by spraying on gas and mixed odorous substances, and to clean and process harmful gases and mixed odors absorbed or dissolved in water. to provide.

According to a feature of the present invention for achieving the above object,

In the purification system for removing harmful gases and complex odors using an underwater plasma generator,

The system supports a conductive discharge electrode inside a transparent quartz tube, an electric field concentration and an underwater plasma reactor on an outer surface thereof, and forms a discharge region of a high density streamer plasma and increases a structural stability of the plasma reactor. An underwater plasma reactor 110 having a conductive counter electrode composed of electrodes to generate an electrically charged high density underwater plasma, a regulator 120 for injecting and regulating air or gas into the underwater plasma reactor, and the underwater plasma reactor A commercial electronic neon transformer 130 for generating a plasma by applying a high voltage, low power, and low cost power to the plasma, and a dense porous bubble device 140 connected to the underwater plasma reactor to promote an oxidation reaction to clean the water pollutants. Underwater plasma generator 100),

In addition, in order to increase the catalytic oxidation reaction between the high concentration ozone generated in the underwater plasma generator and the harmful gas and the complex odor introduced from the outside through the blower 202 and the gas inlet 203, except for water for generating the plasma in the water Some cleaning fluids or chemicals have a water tank 204 of the water treatment structure is not injected at all,

FRP tower type washing apparatus which collects and washes the plasma treated water by physically promoting forced circulation and catalytic oxidation reaction so that the contact oxidation treatment between the high concentration of ozone, harmful gas and complex odor is simultaneously performed. 200);

In addition, the harmful gas using the underwater plasma generator, characterized in that it comprises an activated carbon ball tower 300 for treating a high concentration of ozone generated by the plasma contained in the clean gas discharged through the FRP tower-type cleaning device; Provide a purification system for removing complex odors.

Preferably, the conductive counter electrode includes a spiral tab structure having a length within 15 [cm] and a thickness of 1 to 1.5 [mm], and a distance between the spiral tabs 113a is 1 to 2 [mm]. It is characterized by.

Preferably, the FRP tower type washing apparatus includes a main body 201, a circulation pump 205 for forcibly circulating the plasma treated water of the water tank provided in the lower part of the main body, and a plasma treated water connected to the circulating pump. The supply line 206, the first and second injection pipes 206a and 206b and the plurality of injection nozzles 207a and 207b connected to the plasma treatment water supply line, and a constant distance between the lower end of each injection nozzle First and second packing layers 208a and 208b which are installed to be disposed in a circumference, and which filter harmful gases and mixed odorous substances collected and washed by plasma treatment water by increasing the contact area and reaction time with ozone, and First and second demisters 209a and 209b are disposed at upper and lower ends of the main body 201 to remove liquid components such as moisture and moisture that are raised from the water tank, the second injection pipe and the plurality of injection nozzles. It is characterized by including .

Preferably, the tank tank 204 has a sawtooth structure at the bottom of the tank tank in order to minimize the amount of water stored in the tank tank to more effectively treat the contaminants collected and washed by the plasma treated water. Characterized in that it comprises a.

Preferably, the activated carbon ball tower 300 is located in the ozone treatment catalyst layer 310 for treating ozone discharged through the upper portion of the second demister 209b and the catalyst layer for ozone treatment. It characterized in that it comprises a gas outlet 320 for discharging the purified air to the outside.

Purifying system for removing harmful gases and complex odors using the underwater plasma generator according to the present invention has the following effects.

According to the present invention, by constructing an underwater plasma generator having a simple structure and a dust collecting / cleaning and water treatment system in the form of a wet scrubber,

(1) It is a mechanism that purifies polluted gas by simultaneous complex interaction instead of a series of sequential processes, and shows excellent treatment efficiency.

(2) By devising an underwater plasma generator with a simple structure, it is easy to operate and install as well as convenient to repair and repair in the event of a failure.

(3) Minimize the cost of power by using low-power, low-cost commercial neon transformer as a high voltage applied power source.

(4) Compared with using chemicals such as ozone and ozone water generation technology, which requires high power consumption and high purity oxygen supply facilities, and expensive cleaning and absorbing agents, the size of equipment is smaller, and the maintenance and operation costs are very low. to be.

(5) It is possible to operate continuously because only normal tap water or ground water is supplied without any chemicals, and the water used is purified by plasma water treatment system, circulated and reused, or discharged afterwards. It has the unique effect of providing low cost, high efficiency and eco-friendly air pollution prevention technology.

1 is a view schematically showing an underwater plasma generating apparatus designed in a form suitable for the purification system for removing harmful gases and complex odors using the underwater plasma generating apparatus according to a preferred embodiment of the present invention.
FIG. 2 is a diagram of an underwater plasma generator further showing the regulator and a commercial electronic neon transformer of FIG. 1. FIG.
3 is a view showing in detail the conductive counter electrode (spiral tab) of the underwater plasma generating apparatus for FIGS.
Figure 4 is a view showing the configuration of the purification system for removing harmful gases and complex odors using the underwater plasma generator according to a preferred embodiment of the present invention.
5 is a view for explaining the operation of the purification system for removing harmful gases and odors using the underwater plasma generator according to a preferred embodiment of the present invention.
6 is a view of the purification system for removing harmful gases and complex odors using the underwater plasma generator according to FIG.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used to refer to the same components, even if displayed on different drawings. In describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 to 6, the purification system for removing harmful gases and complex odors using an underwater plasma generator according to a preferred embodiment of the present invention, as disclosed in the above background, has been patented by the applicant We applied and improved the existing underwater plasma generator technology to the wet scrubber type cleaning device and applied it to the new concept of hybrid purification system.The main technical solution is the underwater plasma generator 100 and the FRP tower type. Consists of the cleaning device 200 and the activated carbon ball tower 300 to spray the electrically charged, high density underwater plasma treated water to the noxious gas and the complex odorous substance to increase dust collection and cleaning efficiency, and at the same time absorbed or dissolved harmful water in the water And efficient treatment of complex odorous substances without the use of chemicals. There is this.

First, referring to FIGS. 1 and 2, the underwater plasma generator 100 includes an underwater plasma reactor 110, a regulator 120, a commercial electronic neon transformer 130, and a dense porous bubble device 140.

The underwater plasma reactor 110 is a means for generating a plasma in the water, the transparent quartz tube 111, and can be inserted into the transparent quartz tube to secure the inner diameter and the discharge gap (discharge gap) of the quartz tube. A conductive discharge electrode 112 having a diameter, and a direct contact with the outer surface of the transparent quartz tube to support the electric field concentration and the underwater plasma reactor 100 to form a discharge region of the high density streamer plasma, A conductive counter electrode 113 composed of a pair of spiral-shaped electrodes to increase stability and the transparent quartz tube 111 is assembled on the top to fix the conductive discharge electrode 112 to a central axis inside the transparent quartz tube 111. And a radial reactor head 114 having an electrode tip a, an electrode inlet b, and a gas inlet c for maintaining the gap distance.

The transparent quartz tube 111 is used to discharge the ultraviolet rays generated in the high-density plasma region (d) to satisfy the required mechanical strength, all of the tubular body made of an insulating material can be used to replace. Of course, the use of quartz tube is more suitable for UV emission, the inner diameter is 1.5 ~ 10 [mm] inside and outside (preferably 6mm), the outside diameter is 3 ~ 16 [mm] inside and around (preferably 8mm) and the thickness is 0.7 ~ 3 [mm] around (preferably 2mm) was used, the length can be adjusted according to the environment, there is no limit of length and of course there is no particular limitation of size. Therefore, it can be used even when the quartz tube is smaller or larger.

The conductive discharge electrode 112 and the conductive counter electrode 113 can be used as long as it is a conductive material. First, the conductive discharge electrode 112 is preferably about 3 [cm] to 5 [cm] at the lower end of the transparent quartz tube 111 in order to prevent generation of arc discharge and increase generation and stable discharge of streamer plasma. Is appropriately positioned at the top of 3.5 [cm]).

In addition, the diameter of the conductive discharge electrode 112 should be smaller than the inner diameter of the transparent quartz tube 111, but the relationship between the radius r of the conductive discharge electrode 112 and the radius R of the inner diameter of the transparent quartz tube 111 is R / r ≒ 3 or greater. This is because the electric field strength of the inner electrode surface changes according to the inner radius of the outer electrode and the size of the radius of the inner electrode, and is intended to stably generate the streamer discharge via the corona.

The conductive counter electrode 113 directly supports and protects the underwater plasma reactor 110 from a gas pressure caused by odor and harmful gas introduced into the transparent quartz tube 111 and impact and shaking caused by supplied water. do. In addition, since water acts as a conductive material, the water directly contacts water, and serves as a ground electrode together with water, and discharges high-density streamer plasma generated between the conductive discharge electrode 112 and the transparent quartz tube 111. Form.

In addition, the conductive counter electrode 113 is a tab structure consisting of a pair of spiral-shaped electrodes having a length within 15 [cm] and a thickness of 1 to 1.5 [mm], and the interval between the spiral tabs 113a is 1 to 2. [mm]. This is to stably support the underwater plasma reactor 100 and at the same time to form a high-density strong discharge characteristics, such as the discharge form generated in the spiral electrode and the plate electrode structurally.

Referring to (a) and (b) of FIG. 3, first, as shown in (a) of FIG. 3, the spiral tab 113a may directly contact the surface of the quartz tube with a pitch of 1 to 2 [mm]. In this case, the high-density streamer plasma is generated by concentrating the potential hardness at the discharge electrode, and the generation area of the plasma is evenly distributed. However, as shown in (b) of FIG. 3, when the pitch (pitch) of the spiral tab 113a is 2 [mm] or more, the maximum dislocation hardness coefficient becomes high, and an arc plasma is easily generated and the plasma is evenly distributed. It is difficult to maintain stable discharge characteristics, and strong plasma energy is continuously applied to the electrodes and the quartz tube, thereby causing problems such as electrode loss and breakage of the quartz tube.

On the other hand, the voltage applied to the conductive discharge electrode 112 and the conductive counter electrode 113 can be used if it is a power source capable of generating a higher withstand voltage starting from approximately 7 [kV], as well as a commercial power source It can be applied freely within the scope of. In addition, the 7 [kV] may adjust the size of the device to enable operation even below. This allows for custom fabrication to match the power capacity and requirements.

The high voltage line applied to the conductive discharge electrode 112 and the conductive counter electrode 113 has a distance of at least 20 [mm] to prevent loss of output voltage, short circuit, and corona loss.

The radial reactor head 114 is located on top of the transparent quartz tube 111, and should be used as an insulating material that can cushion the quartz tube to prevent breakage. In addition, in order to form an even discharge region in the reactor, the electrode tip a and the conductive discharge electrode 112 and the conductive electrode may be fixed to the central axis inside the transparent quartz tube 111 to adjust the insertion length. An electrode inlet (b) into which the counter electrode 113 can be inserted and a gas inlet for injecting gas or air into the space between the conductive discharge electrode 112 and the inner diameter of the transparent quartz tube 111 through the regulator 120. It consists of (c).

In addition, the dense porous bubble device 140 installed at the lower end of the transparent quartz tube 111 generates a micron-sized bubble, so that the contact surface with water can be widened, and it is possible to use the existing products or manufactured products. Can be.

On the other hand, the underwater plasma generating apparatus applied to the present invention is as long as the streamer plasma and the conductive counter electrode 113 generated in the space between the discharge electrode 112 and the transparent quartz tube 111 using water as a medium. There is a feature that is used as a pair of electrodes, by supplying a high electric field between the electrode and the plasma energy to the water can be electrically charged to generate plasma treated water that can increase the dust collection efficiency.

In addition, the underwater plasma generator is applied to the harmful gas and complex odor removal technology such as the present invention by showing a very excellent treatment performance in treating contaminants in water by injecting high density plasma energy and a large amount of active species and radicals into water. In addition, it can be widely applied to water purification, such as livestock wastewater, hardly degradable contaminants, green algae removal, color and disinfection of wastewater.

In addition, since the discharge characteristics of the plasma can be applied according to the use environment or situation, the fluidity in use is large, and the type of gas that can be used in the present invention can be used appropriately according to the environment because there is no particular limitation. There are advantages to making various changes.

Subsequently, the main active mechanism of the plasma in the present invention, the conductive discharge electrode 112 in the transparent quartz tube 111 and the conductive counter electrode 113 in direct contact with the outer surface of the transparent quartz tube 111 is The inside of the transparent quartz tube 111, that is, the inner diameter of the transparent quartz tube 111 and the conductive discharge electrode 112 inserted into the transparent quartz tube 111 and positioned at the center of the inner diameter of the transparent quartz tube 111. Inject a gas or air into the space formed between the outer diameter using the regulator 120 to create a space between the inside of the transparent quartz tube 111 and water from the lower end of the conductive discharge electrode 112 at their pressure. By blocking the converter, a short circuit between the conductive discharge electrode 112 and water is prevented and at the same time, plasma is generated in the space.

At this time, in the transparent quartz tube 111, a plasma having an even discharge area is generated in the entire transparent quartz tube 111 in contact with water. Since the conductive counter electrode 113 is in direct contact with water, one of the water itself is generated. Since it acts as a conductive electrode, charging occurs and a high energy density streamer plasma, which is one of discharges in the group, is generated in the high density plasma region d.

Hereinafter, the operation for generating the high-density plasma of the present invention stably in water is as follows.

In the present invention, the power source used for the underwater plasma reactor 110 is a high-voltage pulse AC power source having a high frequency of 22.5 [kHz] to 23 [kHz] as the commercial electronic neon transformer 130. After injecting air or gas into the dielectric tube (transparent quartz tube 111) and applying power to the conductive discharge electrode 112 and the conductive counter electrode 113, the air and the dielectric tube (transparent quartz tube 111) Charge current due to capacitance, leakage current due to insulation resistance, and current for supplying dielectric loss are important in this case. The important thing in this case is the dipole conduction current caused by the phenomenon in which the dipole molecules try to turn in the direction of the electric field. This current does not flow with respect to the DC voltage when the dipole molecules are turned in the direction of the electric field, but when the power source used in the present invention is applied, an alternating electric field is applied in the water, so that the dipole molecules become the power frequency by switching the polarity. The current is flowed in the dielectric at a period corresponding to the current, and the dipole molecules vibrate, thereby generating friction and electric field effects with adjacent water molecules. The conductive discharge electrode 112 and the dielectric tube [ Transparent quartz tube 111] A conductive phenomenon occurs between the surface and the conductive counter electrode 113 which is in direct contact with water, thereby generating a high-density plasma and forming a strong electric field in water to efficiently inject plasma energy into water. It can be done.

On the other hand, the existing technology of generating plasma in the water is a very inefficient treatment method because the short circuit occurs due to the conductive water when the electrode is submerged in water or the discharge space is limited in the case of water surface discharge, the gap between the electrodes Insulation breakage occurs due to inconsistent length, so use a very expensive pulse power supply or dielectric coated electrode. Therefore, it is not generalized due to the expensive equipment and difficulty of operation and installation.

 However, in the case of the present invention, a short circuit occurs because the conductive discharge electrode 112 and the electric current are blocked to stably generate a high density plasma, and the plasma energy is transferred to the water only by the amount of charge generated by the streamer discharge. Instead, the current flows by saturating only the amount of charge generated in the streamer discharge, thereby generating a stable plasma that does not exceed the capacity of the power supply. This allows for continuous delivery of plasma energy.

Therefore, in the present invention, by spraying the plasma treated water electrically charged by the plasma energy to the incoming harmful gas and complex odorous substances to increase the efficiency of dust collection and cleaning (or purification) and trap the contaminants dissolved in the water to trap the underwater plasma The treatment system using the used water treatment method is applied in combination.

The gas and air injected into the underwater plasma generator 100 are activated through a high density plasma region to generate a large amount of active species such as high concentrations of OH, O ₃ , H +, H ₂ O ₂ , bagged electrons and various radicals. The generated active radicals are immediately injected into the water and collected and washed in the plasma treated water by a complex water treatment mechanism that directly irradiates plasma energy to ultraviolet light, shock waves, and the like emitted from the transparent quartz tube. This is because it has implemented a purification system to purify the complex odorous substances.

The dense porous bubble device 140 is a means for promoting an oxidation reaction, is connected to the lower end of the transparent quartz tube 111, and in order to increase the contact oxidation reaction with water to increase the contact oxidation reaction (Micron) ) Bubbles of size are generated. That is, bubbles containing a large amount of highly active radicals emitted through the high-density plasma region do not clump together and are finely divided to drift in water. Therefore, the contact time with water and the surface area is increased, so that the dissolution rate and the catalytic oxidation of high concentration active species can be greatly increased, so the treatment time is very fast and excellent effect in the treatment of environmental pollutants.

Referring to Figures 4 to 6, it will be described in detail with respect to the purification system for removing harmful gases and complex odors using the underwater plasma generator according to the preferred embodiment of the present invention.

Technical configuration of the purification system according to an embodiment of the present invention is largely composed of the FRP tower type washing apparatus 200 and the activated carbon ball tower (300).

The FRP tower type cleaning apparatus 200 includes a main body 201, a blower 202 and a gas inlet 203, a water tank 204, a circulation pump 205, a plasma treatment water supply line 206, and a purge system. 1 / second injection pipes 206a, 206b and a plurality of injection nozzles 207a, 207b, first / second packing layers 208a, 208b, and first / second demisters 209a, 209b. The activated carbon ball tower 300 includes a catalyst layer 310 for treating ozone and a gas outlet 320, respectively.

The body 201 and the water tank 204 of the purification system are generally made of FRP (Fiber Reinforced Plastics) and glass fiber materials which are corrosion and acid resistant, and have no restrictions on size, shape, height, etc. Can be designed to suit the appropriate situation. In addition, the front of the gas inlet 203 may be installed by selecting a blower 202 or a fan (Fan) suitable for the harmful gas and the mixed odor treatment capacity.

In addition, one or more underwater plasma generators 100 are installed in the water tank 204 in direct contact with each other, and are connected to the lower end of the main body 201 of the purification system and collected and washed by plasma treated water. This is introduced into the underwater plasma processing region. In addition, the tank 204 has a high concentration of ozone and contact oxidation treatment generated by the plasma is introduced into the space between the water plasma generator 100 and the water surface inside the tank 204, the harmful gas and complex odorous substances At the same time, the gas inlet 203 is included so as to be introduced into the main body 201. In addition, in order to minimize the amount of water stored in the tank tank 204 so that the pollutants collected and washed by the plasma treated water can be more effectively treated, the bottom portion of the tank tank 204 has a sawtooth structure. have. In addition, the water tank 204 is characterized in that no cleaning liquid or chemicals are injected at all except water for plasma generation in water.

In addition, plasma treatment water generated by the plasma generating apparatus in the tank tank 204 and electrically and chemically activated may be a circulation pump 205 and a plasma treatment water supply line 206 (first injection pipe 206a, Second injection pipe 206b) in the body 201 of the purification system. The first and second injection pipes 206a and 206b are provided with a plurality of injection nozzles 207a and 207b, and the first and second injection pipes 206a and the second injection pipe 206b are disposed at the lower end. 2 packing layers 208a and 208b are provided. Hazardous gases and complex odorous substances are collected and washed by the plasma treated water sprayed from the plurality of injection nozzles 207a and 207b through the circulation pump 205 and the plasma treated water supply line 206, and the main body of the purification system ( 201) It flows down to the tank tank 204 of the lower part and is purified by the plasma, and the plasma treated water is continuously supplied and circulated through the circulation pump 205.

Here, the first and second injection pipes 206a and 206b and the plurality of injection nozzles 207a and 207b are not limited in their position and quantity, and can be structurally modified to suit the processing capacity and environment. When the plurality of injection nozzles (207a, 207b) are installed in a circular form at the same interval can further increase the purification efficiency.

The first and second packed beds 208a and 208b refer to a place where harmful gas, a mixed odor gas, plasma treated water and a high concentration of ozone contact each other, and a plasma treated water including a large amount of active radicals. It is installed to increase the contact area and reaction time of harmful gas and complex odor gas, and to increase the efficiency of high concentration of ozone generated by underwater plasma generator and catalytic oxidation, and it is collected and cleaned by plasma treated water. Gas and complex odorous substances are treated by reaction with plasma-treated water and ozone.

In addition, the first and second packing layers 208a and 208b have been used in general scrubber devices, and are selected in consideration of corrosion resistance and acid resistance, surface area, weight, pressure loss, and the like. By providing the first and second packing layers 208a and 208b at the lower ends of 207a and 207b, the treatment efficiency of the noxious gas can be increased.

4 to 6, the activated carbon ball tower 300 is a means for treating the high concentration of ozone generated by the plasma contained in the clean gas discharged through the FRP tower-type cleaning device 200, The ozone treatment catalyst layer 310 for treating ozone discharged through the upper portion of the second demister 209b, and the purified air disposed above the ozone treatment catalyst layer 310 to discharge the purified air to the outside It includes a gas outlet 320 for.

Here, when ozone generated by the plasma is discharged to the atmosphere as it is through the first / second demisters 209a and 209b of the purification system main body 201 of the present invention, it may be a secondary air pollution source, The ozone treatment catalyst layer 310 is provided to remove the high concentration of ozone discharged and to be treated by oxidative decomposition with a small amount of residual pollutant gas.

Meanwhile, as a method for removing ozone from the ozone treatment catalyst layer 310, an adsorbent such as pyrolysis and porous silicate or zeolite is used, but in the present invention, it is economical to avoid expensive adsorbents and catalysts. Only the most common activated carbon was used, and the test results showed excellent effects only by using activated carbon without a separate catalyst manufacturing process such as a photocatalyst. Actually, the harmful gas and odor removal technology by the adsorption method is not a technology to remove the original pollutants, and the odor molecules are adsorbed on the adsorbent, so that they are saturated in a short time or do not function properly as an adsorbent to clean the polluted gas. There is a big limitation. Therefore, in the present invention, the advanced water treatment method purifies the toxic gas and the mixed odorous substance and at the same time continuously generates the reaction of ozone and activated carbon generated by continuous plasma generation, thereby improving the performance and purification efficiency of the adsorbent. It can be maintained and improved.

The gas outlet 320 is a means for discharging clean air from which contaminants are removed, and discharges the purified air discharged through the catalyst for treating the ozone zone 310 to the outside. Ozone through the layers 208a and 208b, a liquid component containing water, a small amount of residual harmful gas, and a complex odorous substance are raised so that the first and second demisters 209a, which are located above and below the main body of the purification system, 209b), and the first and second demisters 209a and 209b remove liquid components such as elevated moisture and moisture.

The demister is referred to as Mist Eliminator, Wire, Mesh Separator, etc., and the principle of operation is to separate impurities after moisturizing impurities (Mist and Dust) contained in the fluid based on the ancestors. In addition, it is a kind of process of removing, and at the same time, reaction reaction in the reaction apparatus to effectively cause the reaction. In particular, Demister has a large gas-liquid contact effect due to the complex inertia collision composition, and has a separation efficiency of more than 99.9%. In addition, it is light in weight compared to the conventional filling rate, and the space rate is excellent, so that pressure drop occurs to be negligible. In addition, it is semi-permanent because it is made of various materials to suit the use conditions, and it is easy to maintain and economical because it can be easily induced and reused when charging. It is an essential product for the gas scrubber system of environmental pollution prevention facilities.

Referring to Figure 5 will be described more clearly the operation of the purification system for removing harmful gases and complex odor using the underwater plasma generator according to the present invention.

As shown in FIG. 5, one or more underwater plasma generators 100 are installed in the tank 204 at regular intervals, and are externally provided through the blower 202 to a space between the water surfaces inside the tank 204. When the harmful gas and the mixed odorous substance introduced from the gas inlet 203, the harmful gas and the mixed odorous substance causes a catalytic oxidation reaction with ozone generated by the at least one underwater plasma generator 100 while purifying the system. The plasma treated water flowing into the main body 201 and activated by the water discharge plasma is sprayed to collect and wash the contaminated gaseous substance. In addition, the ozone gas and the pollutant gas generated by the plasma are subjected to catalytic oxidation in the first and second packing layers 208a and 208b and the main body 201, and at the same time, the harmful gases and the complex odorous substances collected and washed are collected in a water tank. It enters the tank 204 and is purified in water by a large amount of active species and plasma energy. In addition, the process of continuously spraying the treated water and activated plasma treated water through the circulation pump 205 takes place in combination. After installing the ozone treatment catalyst layer 310 which can remove the ozone before being discharged through the first and second demisters 209a and 209b, the ozone is not discharged to the outside and the blower 202 is opened. The clean air is discharged to the gas outlet 320 through.

On the other hand, Figure 6 is a cross-sectional view of the purifying system for removing harmful gases and complex odors using the underwater plasma generator according to the present invention with respect to FIG.

As described above, the noxious gas and the mixed odor purifying system using the underwater plasma generator according to the embodiment of the present invention are collected and washed by the electrically charged high density plasma treated water, and the noxious gas and the mixed noxious gas are collected and cleaned. The malodorous substance is water-treated by a water discharge plasma, and a high concentration of ozone and contact oxidation treatment of polluting gas simultaneously acts in combination to exhibit high treatment efficiency. In addition, since the supplied water is purified, discharged and reused, there is no problem of secondary pollution and no expensive chemicals are used, thereby providing a low-cost, high-efficiency, environmentally friendly air pollution prevention technology capable of continuous operation.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: underwater plasma generator
110: underwater plasma reactor
111: transparent quartz tube 112: conductive discharge electrode
113: conductive counter electrode 113a: spiral tab
114: radial reactor head 120: regulator
130: commercial electronic neon transformer 140: high density porous bubble device
200: FRP tower type cleaning device 201: main body of the purification system
202: blower 203: gas inlet
204: tank tank 205: circulation pump
206: plasma treatment water supply line 206a, 206b: first / second injection pipe
207a, 207b: a plurality of injection nozzles 208a, 208b: first / second packing layer
209a, 209b: First and Second Demister 300: Activated Carbon Ball Tower
310: catalyst layer for ozone treatment 320: gas outlet

Claims (8)

In the purification system for removing harmful gases and complex odors using an underwater plasma generator,
The system supports a conductive discharge electrode inside a transparent quartz tube, an electric field concentration and an underwater plasma reactor on an outer surface thereof, and forms a discharge region of a high density streamer plasma and increases a structural stability of the plasma reactor. An underwater plasma reactor 110 having a conductive counter electrode composed of electrodes to generate an electrically charged high density underwater plasma, a regulator 120 for injecting and regulating air or gas into the underwater plasma reactor, and the underwater plasma reactor A commercial electronic neon transformer 130 for generating a plasma by applying a high voltage, low power, and low cost power to the plasma, and a dense porous bubble device 140 connected to the underwater plasma reactor to promote an oxidation reaction to clean the water pollutants. Underwater plasma generator 100),
In addition, in order to increase the catalytic oxidation reaction between the high concentration ozone generated in the underwater plasma generator and the harmful gas and the complex odor introduced from the outside through the blower 202 and the gas inlet 203, except for water for generating the plasma in the water Some cleaning fluids or chemicals have a water tank 204 of the water treatment structure is not injected at all,
FRP tower type washing apparatus which collects and washes the plasma treated water by physically promoting forced circulation and catalytic oxidation reaction so that the contact oxidation treatment between the high concentration of ozone, harmful gas and complex odor is simultaneously performed. 200);
In addition, the harmful gas using the underwater plasma generator, characterized in that it comprises an activated carbon ball tower 300 for treating a high concentration of ozone generated by the plasma contained in the clean gas discharged through the FRP tower-type cleaning device; Purification system for compound odor removal.
The method according to claim 1,
The conductive counter electrode includes a spiral tab structure having a length within 15 [cm] and a thickness of 1 to 1.5 [mm], and a distance between the spiral tabs 113a is 1 to 2 [mm]. Purification system for removing harmful gases and complex odors using an underwater plasma generator.
The method according to claim 1,
The FRP tower type cleaning apparatus includes a main body 201, a circulation pump 205 for forcibly circulating plasma treated water in a tank installed under the main body, and a plasma treated water supply line 206 connected to the circulating pump. ), First / second injection pipes 206a and 206b and a plurality of injection nozzles 207a and 207b connected to the plasma treatment water supply line, and are provided at predetermined intervals at the lower ends of the injection nozzles, First and second packing layers 208a and 208b for filtering toxic gases and complex odorous substances collected and washed by plasma treated water to increase the contact area and reaction time with ozone and the main body 201. The first and second demisters 209a and 209b are disposed at upper and lower ends of the tank tank, the second injection pipe and the plurality of injection nozzles to remove liquid components such as moisture and moisture that are raised. Underwater plaque Harmful gases and complex odor purification system using the generator.
delete The method according to claim 1,
The tank 204 is formed with a sawtooth structure at the bottom of the tank to minimize the amount of water stored in the tank so that the pollutants collected and washed by the plasma treatment water can be more effectively treated. Purifying system for removing harmful gases and complex odors using an underwater plasma generator, including.
delete The method of claim 3,
The activated carbon ball tower 300 includes a catalyst layer for ozone treatment for treating ozone discharged through the upper portion of the second demister 209b and air purified by being positioned on the catalyst layer for treating the ozone treatment. Purifying system for removing harmful gases and complex odors using an underwater plasma generator, characterized in that it comprises a gas outlet 320 for discharging to the outside.
delete

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