KR100803949B1 - Apparatus and method of high efficiency deodorization and air sterilization using advanced oxidation process - Google Patents

Abstract

A deodorizing and air sterilizing apparatus of high efficiency using an advanced oxidation process and a method thereof are provided to improve the mixing rate, contact rate and dissolving rate of ozone gas and the production rate of hydroxyl radicals. A deodorizing and air sterilizing apparatus of high efficiency using an advanced oxidation process includes a reaction tank(11) and an advanced oxidation unit. The reaction tank includes an inlet(12), a reaction space portion(13), an outlet(14) and a collecting portion. Air and ozone gas are supplied to the reaction tank to purify the air with the ozone gas. The advanced oxidation unit is installed to generate hydroxyl radicals from ozone, and includes a catalyst filter(15), an ultraviolet ray lamp(10), a porous distributing plate(22), a porous distributing plate water layer(18) and a spray nozzle.

Description

High efficiency deodorization and air sterilization apparatus using advanced oxidation process and its method {Apparatus and Method of High Efficiency Deodorization and Air Sterilization using Advanced Oxidation Process}

1 is a schematic diagram of a conventional malodor removing device.

Figure 2 is a block diagram of a high-efficiency deodorization and air sterilization apparatus and a system using an advanced oxidation process according to an embodiment of the present invention.

Figure 3 is a partial cutaway side view of the high efficiency deodorization and air sterilization apparatus using the high oxidation process shown in FIG.

4 is a II-II cross-sectional view of FIG. 3.

5 is an enlarged cross-sectional view and a plan view of portion A of FIG.

FIG. 6 is an enlarged cross-sectional view of part B of FIG. 3;

7 is a graph for explaining the purification efficiency of the high efficiency deodorization and air sterilization apparatus shown in FIG.

* Description of the symbols for the main parts of the drawings *

1. High efficiency deodorization and air sterilization apparatus and system using advanced oxidation process

2. High efficiency deodorization and air sterilization system using advanced oxidation process

3. Filter 4. Control panel

5. Circulation pump 6. Blower

10. UV lamp 11. Reactor

13. Reaction space 15. Catalyst filter

16. Porous Distribution Plate 17. Water Level Control Device

18. Porous water distribution layer 19. Spray nozzle

20. Sump 27. Lamp Through Hole

28. Through hole 34. Backflow prevention plate

50. Drain valve 61. Circulation piping

      The present invention relates to a high-efficiency deodorization and air sterilization apparatus using a highly oxidizing process, and more specifically, mixed with ozone gas to remove odor-causing substances, harmful components and pathogenic bacteria contained in inlet air. ㆍ It relates to a high efficiency deodorization and air sterilization apparatus using an advanced oxidation process structured to improve the contact rate, dissolution rate and the generation rate of hydroxyl radical (° OH).

     Recently, with industrialization and urbanization, the amount of waste, wastewater and household waste is increasing day by day, and the degree of pollution is intensifying day by day, and the treatment facilities for treating the pollutants are disgusted by odor-causing substances, harmful components and pathogenic bacteria. It is recognized as a facility, making it the most common complaint. Odor-generating facilities are variously generated in industrial sites such as sewage and wastewater treatment plants, manure and livestock wastewater treatment plants, landfills, slaughterhouses, and other chemical manufacturing plants, and the odorous substances are not only substances that cause discomfort or aversion. There is a serious odor problem in that it is generally present with harmful substances such as Volatile Organic Compounds (VOCs), which are known as carcinogens, which can directly harm human health.

      As shown in FIG. 1, extensive research has been conducted to remove odorous substances generated from various pollutants as described above, and look at representative techniques that have been studied as odor removal techniques to date.

      Bio-filter method removes odors by inoculating microorganisms using new metabolism of microorganisms, which is advantageous for high-humidity odor treatment. It takes a lot of time for normal operation and has a large land area and is difficult to process high concentration and large capacity. Adsorption method uses adsorbents such as activated carbon and zeolite, which is cheap for initial investment, simple system, and easy to operate. There is a problem that occurs. The wet washing method is a method of neutralizing and removing odorous substances by oxidation / reducing agent (acid or basic substance), which is easy to handle, but has a problem of low removal efficiency. The ozone oxidation method is a sulfur compound system with large molecules that removes odorous substances by changing the masking effect and radical group of radicals or destroying molecular structure by using direct and indirect oxidation reaction of ozone. Although it is possible to treat odorous substances, it is difficult to remove ammonia or lower amines, and there is a problem that residual ozone which does not react after treatment is generated. Recently, a method of using an advanced oxidation process (Advanced Oxidation Process) for treating a target substance by generating a radical product, which is a chemical species having strong sterilization and oxidizing power, has been developed. Ozone water is dissolved by dissolving ozone gas in water to induce contact with air containing malodorous substances to induce malodorous substances.However, this method does not maximize the rate of generation of oxidative radical hydroxide, which is stronger than ozone. There is a limit that can not maximize the oxidation treatment efficiency of odorous substances present in the process. As described above, ozone has a selective reaction with odor-causing substances, such as a slow reaction with odorous substances or no reaction with any organic substances, and its oxidation due to process factors such as pH and temperature. It is pointed out that it has big defects such as being greatly influenced by ability.

      Therefore, as described above, odorous substances generated in various aversive facilities vary depending on the source of odorous substances, and there is a limitation in processing by any one specific process.

      SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to mix ozone gas, which is a physical and chemical method, to remove odor-causing substances, harmful components, and pathogenic bacteria contained in inlet air. Advanced oxidation process to improve the contact rate, dissolution rate and the generation rate of radicals of hydroxide to increase the purification efficiency of the inlet air as well as to minimize the amount of ozone gas supply and deodorization and air sterilizer To provide a high efficiency deodorization and air sterilization apparatus using.

     Another object of the present invention is to purify the inlet air by oxidizing and decomposing ozone gas and hydroxide radicals, which are physical and chemical methods, to remove odor-causing substances, harmful components and pathogenic bacteria contained in the inlet air. To provide a high efficiency deodorization and air sterilization method using the oxidation process.

      In order to achieve the above object, the high-efficiency deodorization and air sterilization apparatus using the advanced oxidation process according to the present invention, the inlet and the inlet air containing odor-causing substances, harmful components and pathogenic bacteria, etc., A reaction tank having an inlet air supplied with an ozone gas to purify the inlet air by ozone contained in the inlet air, and a discharge port through which the air purified in the reaction space is discharged to the outside; A collecting unit for storing internal circulation water in a lower portion, and a filtration device for purifying the circulation water stored in the collecting portion of the reaction tank; And a high oxidation means for generating hydroxyl radicals from the ozone to improve the purification efficiency of the inlet air. The high efficiency deodorization and air sterilization apparatus using a high oxidation process, wherein the high oxidation means comprises: And a catalytic filter part, an ultraviolet lamp, a porous distribution plate and a water layer part, and a spray nozzle part so that the ozone contained in the product and the unreacted ozone and the unreacted ozone are radically chain-reacted and the ozone is decomposed into an oxidizing strong hydroxyl radical. It is characterized by.

      According to the present invention, the highly oxidizing means is disposed so that the ultraviolet lamps are spaced at regular intervals in the vertical direction on the upper part of the catalyst filter of the reaction space of the reaction tank, the ultraviolet lamp is irradiated with ultraviolet rays, and the fine spray water A porous distribution plate having a spray nozzle to be sprayed, a lamp through hole into which each of the ultraviolet lamps is inserted, a plurality of fine through holes formed around the through hole, a water layer control device for adjusting a water layer on the porous distribution plate, and It is preferable to have a collecting tank for storing circulating water for spraying to the reaction space.

      In addition, according to the present invention, it is preferable that a plurality of ultraviolet lamps, spray nozzles and porous distribution plates are arranged, respectively.

      In addition, according to the present invention, the spray nozzle for atomizing the fine particles of the circulating water induces the catalytic reaction of the catalyst layer on the upper portion of the ultraviolet distribution lamp so as to form a water layer on the porous distribution plate so as to irradiate ultraviolet rays. It is preferable to be installed on the upper side of the side filter.

       In addition, according to the present invention, it is preferable to distribute the through-holes perforated in the porous distribution plate so as to be concentrated around the ultraviolet lamp.

      In addition, according to the present invention, it is preferable that a plurality of the water layer adjusting devices are arranged on the porous distribution plate.

      In addition, according to the present invention, the water layer control apparatus of the porous distribution plate is preferably installed so that the water layer on the porous distribution plate is 0.5 to 20cm.

      In addition, according to the present invention, it is preferable that the fine through holes perforated in the porous distribution plate are perforated to have a size of 5 to 20 mm.

      In addition, according to the present invention, the catalyst layer thickness of the catalyst filter is preferably 5 to 20cm.

      In addition, according to the present invention, it is preferable that the irradiation amount of ultraviolet rays of the ultraviolet lamp is 2,500 to 7,000 Pa.sec / cm 2.

      In order to achieve the above another object, the high-efficiency deodorization and air sterilization method using the advanced oxidation process according to the present invention, the inlet and the inlet air containing odor-causing substances, harmful components and pathogenic bacteria, etc. are accommodated in the inlet, A reaction chamber having an inlet air supplied with an ozone gas, and a reaction space part through which the inlet air is purified by ozone included in the inlet air, an outlet through which the air purified from the reaction space part is discharged to the outside, and a lower portion of the reaction tank. A collecting unit for storing the internal circulation water in the filter unit and a filtration device for purifying the circulation water stored in the collection unit of the reaction tank; And a high efficiency deodorization and an air sterilization device having a high efficiency deodorization and air sterilization device including a catalytic filter part, an ultraviolet lamp, a porous distribution plate and a water layer part, and a spray nozzle to generate hydroxyl radicals from the ozone to improve the purification efficiency of the inlet air. And an air sterilizer arrangement step; Supplying inlet air to the reaction tank and supplying ozone gas to the supplied air; Air supplied to the reactor, ozone mixed in the air, and the ozone gas which causes the ozone gas to pass through the catalyst layer and decomposes the ozone into oxidative radical hydroxides by a radical chain reaction induced in the passage process. Passing the catalyst bed; An ultraviolet irradiation step of irradiating ultraviolet rays such that the unreacted ozone, the porous distribution plate aqueous layer, and the nozzle spray water react with each other to generate additional radicals; And purifying and draining the purified air after the harmful substances are oxidized and decomposed in the introduced air.

      According to the present invention, the efficiency deodorization and air sterilization apparatus, the ultraviolet lamp is disposed on the upper portion of the reaction space of the reaction chamber in the vertical direction to be spaced apart at regular intervals, the ultraviolet lamp is irradiated; And a porous distribution plate having a spray nozzle for spraying the fine spray water, a lamp through hole into which each of the ultraviolet lamps is inserted, and a plurality of fine through holes formed around the through holes, wherein the inflow air and the ozone gas Catalytic reaction step of generating radical hydroxide reaction by the radical chain reaction in the catalyst layer; Increasing the residence time of the ozone gas by causing the inflow air and the ozone gas to pass through the catalyst layer to be caught in the porous distribution plate and the water layer; And reacting the ozone gas passing through the aqueous layer of the porous distribution plate with the ultraviolet rays irradiated from the ultraviolet ray lamp so that the unreacted ozone undergoes radical chain reaction to generate further oxidative hydroxyl radicals. It is characterized by including.

      Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

      2 is a block diagram of a high efficiency deodorization and air sterilization apparatus and a system using a high oxidation process according to an embodiment of the present invention, Figure 3 is a part of a high efficiency deodorization and air sterilization apparatus using a high oxidation process shown in FIG. It is a cutaway side view, FIG. 4 is sectional drawing II-II of FIG. 3, FIG. 5 is sectional drawing and the top view which enlarge the part A of FIG. 3, FIG. 6 is the sectional view which enlarges the B part of FIG. 2 is a graph for explaining the purification efficiency of the high efficiency deodorization and air sterilization apparatus shown in FIG.

      2 to 6, the high efficiency deodorization and air sterilization apparatus 2 using the advanced oxidation process according to the embodiment of the present invention is installed in the high efficiency deodorization and air sterilization system 1 as shown in FIG. . The high efficiency deodorization and air sterilization system 1 is connected to the ozone gas generator 23, an ozone gas supply pipe 24 through which the ozone gas generated by the ozone gas generator is supplied, and the ozone gas supply pipe, An inlet pipe 12 through which inlet air is introduced, and a high efficiency deodorization and air sterilization device 2 connected to the inlet pipe and the ozone gas supply pipe 24.

      In this embodiment, the high efficiency deodorization and air sterilization device (2) is supplied with the inlet air and ozone gas at the same time, in the process, a part of the ozone gas is mixed with the inlet air and odor-causing substances by direct oxidation reaction Will be removed. When a part of the air inlet pipe is configured in the form of a venturi pipe, the mixing and contact ratio between the inlet air and the supplied ozone gas can be increased.

      In addition, in the present embodiment, a portion of the air inlet pipe is formed in the form of a venturi tube as an ozone gas injection method, but may be configured to be provided in the form of a supply nozzle 25 in the inlet pipe.

      Referring to FIG. 3, the high efficiency deodorization and air sterilization apparatus 2 includes a reaction tank 11 and an advanced oxidation means.

      The inlet air and the ozone gas are supplied to the reactor 11, and the inlet air is purified by the supplied ozone gas. The reactor has an inlet 12, a reaction space 13, an outlet 14, and a catchment 20.

      The inlet 12 is connected to the inlet air inlet pipe 35, through which the inlet air and the ozone gas are simultaneously introduced into the reaction space in the direction of the arrow shown in the lower part of FIG. 3.

      The reaction space 13 receives inlet air and ozone gas flowing from the inlet. The inlet air is purified not only by the ozone gas mixed with the inlet air but also by the radical radicals generated by the decomposition of the ozone.

Through the outlet 14, the inlet air purified in the reaction space is discharged in the direction of the arrow shown in the upper end of FIG. The discharge port is provided with a demister 26 for adsorbing and absorbing ozone remaining after the purification of the inlet air, sprayed and sprayed droplets, and moisture.

      The water collecting unit is provided with a collecting tank 20 in the lower portion of the reaction tank as shown in Figure 3, the internal circulating water to be supplied to the reaction space is stored, the automatic water level sensor 21 for detecting the water level of the collecting tank ), And a replenishment water inlet 50a and a drain valve 50 for drainage are provided to replenish the fluid consumed by scattering and evaporation during long-term use. In addition, the observation window 31 for checking the state of the reaction space portion of the reaction tank is provided.

      The advanced oxidation means is provided to generate hydroxyl radicals from ozone, and the radical radicals (OH °) improve the purification efficiency of the inlet air introduced into the reactor as a strong oxidant. The advanced oxidation means includes a catalyst filter 15, an ultraviolet lamp 10, a porous distribution plate 22, a porous distribution plate aqueous layer 18, and a spray nozzle 19.

     The catalyst filler 15 is installed perpendicular to the air distribution plate 22 in the form of a cylindrical filter net filled with a catalyst (activated carbon) as shown in FIG. 5, and the catalyst layer has a thickness of 5 to 20 cm. . As the catalyst, a photocatalyst, zeolite, or the like may be used without being limited to activated carbon.

      The dissolved ozone contained in the inlet air is radically chain-reacted under the catalyst of the catalyst layer, so that the dissolved ozone is well decomposed into oxidative radical hydroxide. The ozone decomposition process of activated carbon used as a catalyst of the advanced oxidation means is as follows.

The dissolved ozone comes into the following equation (1) to (4) the chain reaction of the radicals by the surface reaction with the active carbon layer of activated carbon, as shown in, and at the same time peroxy radicals (O ₂ ^- °) to form the do. The peroxy radicals produced in Formula (1) are rapidly reacted with ozone as in the following Formulas (2) to (4) to generate hydroxyl radicals.

O ₃ + activated carbon (catalyst) → O ₂ ^- Expression ° -------- (1)

^{_{O 3 + O 2 - ° →}} O 3 - ° + O 2 -------- formula (2)

_{^{O 3 - ° → O - °}} + O 2 -------- Formula (3)

^{O - ° + H + ↔ °} OH -------- formula (4)

The ultraviolet lamp 10 is arranged long in the vertical direction above the catalyst filter 15 of the reactor. The ultraviolet lamp irradiates ultraviolet rays to the water layer 18 on the fine nozzle sprayed water and the air porous distribution plate in the reaction space so that the dissolved ozone dissolved in the fine nozzle sprayed and the porous distributor water layer is oxidized. It is formed in order to decompose | disassemble well into this strong radical radical. Ultraviolet rays are generally bands of light having a wavelength of 200 nm to 400 nm, and ozone is highly absorbent at a wavelength of 254 nm. When the ultraviolet rays are irradiated to the dissolved ozone, the photolysis of the dissolved ozone results in a radical chain reaction as shown in Equation (5), and simultaneously forms hydrogen peroxide (H ₂ O ₂ ). In addition, the hydrogen peroxide produced by the formula (5) reacts with ultraviolet or ozone as shown in the following formulas (6) to (7), thereby generating radical hydroxide.

O ₃ + hv + H ₂ O → H ₂ O ₂ + O ₂ --------- Formula (5)

H ₂ O ₂ + hv → 2OH ° --------- Formula (6)

O ₃ + H ₂ O ₂ → 2OH ° + 3O ₂ --------- Formula (7)

      The chemical reaction formula in which the odor-causing substance reacts with the oxidatively strong radical hydroxide produced by the radical chain reaction of ozone and is harmless is shown in Table 1 below.

TABLE 1

Odor substances Chemical reaction Ammonia (NH ₃ ) NH ₃ + OH ° → NH ₂ + H ₂ O Hydrogen sulfide (H ₂ S) H ₂ S + OH ° → HS + H ₂ O

Referring to [Table 1], by changing the group (radical) of the malodorous components (NH ₃ , H ₂ S) or by destroying the molecular structure to remove the malodorous substances are harmless.

      The amount of ultraviolet radiation generated by the ultraviolet lamp is formed at an intensity of 2,500 to 7,000 ㎼sec / cm 2. The amount of ultraviolet irradiation can effectively form hydroxyl radicals from the porous plate aqueous layer 18 and the fine nozzle sprayed water, and to confirm this quantitatively, experiments as shown in the following [Table 2] were performed. In the test method, when a ballast (not shown) is connected to an ultraviolet lamp installed in a reaction tank and the bolt of the ultraviolet lamp is adjusted (0 to 10V), the lamp frequency is changed and the ultraviolet light intensity is converted. In this way, the UV intensity of the reaction tank is adjusted to 1,500 to 8,000 Pa · s / cm 2, and 2 mg / L of ozone is supplied to each of the intensities to measure the removal efficiency of ammonia, which is an odorous substance in the inlet air. Optimum ultraviolet light intensity was measured.

TABLE 2

division UV intensity (㎼.s / ㎠) Remarks 1,500 2,000 2,500 3,000 4,000 5,000 6,000 7,000 8,000 9,000 Before treatment (mg / L) 2 2 2 2 2 2 2 2 2 2 After treatment (mg / L) 0.9 0.3 0.08 0.07 0.06 0.06 0.05 0.04 0.04 0.04 % Removal 55 85 96 96.5 97 97 97.5 98.0 98.0 98.0

      Referring to the data in [Table 2], it can be seen that the removal rate of ammonia is rapidly increased in the UV intensity range of 2,500 to 7,000 Pa · s / cm 2, and there is no significant change at 7,000 Pa · s / cm 2 or more. Therefore, it is preferable to set ultraviolet intensity to 2,500-7,000 Pa.s / cm <2>.

<Example 1>

     In Example 1, a high-efficiency deodorization and air sterilization apparatus according to the present invention was installed in the odor generating source of the J sewage treatment plant to carry out an empirical experiment. Experimental conditions were measured by adjusting the UV irradiation intensity to 3,500㎼ · s / ㎠ and injecting 2mg / L of ozone to collect odorous substances and microorganisms (E. coli group) before and after inflow air treatment. 3].

TABLE 3

Item Concentration (ppm) Processing efficiency (%) Remarks Before treatment After treatment Ammonia (NH ₃ ) 2 0.06 97 Trimethylamine ((CH ₃ ) ₃ N) 0.02 0.001 95 Hydrogen sulfide (H ₂ S) 0.08 0.003 96.3 Coliform group (E-Coli.) 30 Not detected 100

      As shown in Table 3, in the high efficiency deodorization and air sterilization apparatus, 97% of ammonia, 95% of trimethylamine, and 96.3% of hydrogen sulfide were removed, and the coliform group was not detected. From the above results, it can be seen that the high-efficiency deodorizing and air sterilization apparatus configured according to the present invention is excellent.

      The plurality of air porous distribution plates 16 are arranged on the upper part of the catalyst filter 15 of the reaction tank so as to be spaced apart at regular intervals in the vertical direction from the catalyst filter, but two are arranged in this embodiment. The porous distribution plates are also arranged to be spaced apart from each other by a predetermined interval. In this way, since the porous distribution plates are disposed in the reactor, the inlet air and the unreacted ozone gas are caught in the porous distribution plate layer 18 to increase the residence time, thereby increasing the contact rate with the ozone gas. Will be.

The porous distribution plate 16 has a lamp through hole 27 and a fine through hole 28 as shown in FIG. 4. The ultraviolet lamps 10 are inserted into the lamp through holes.

According to the present invention, it is preferable that the porous distribution plate is coated by electropolishing with an aluminum material and a stainless material having high reflection efficiency of ultraviolet light emitted from the ultraviolet lamp.

      A plurality of fine through holes 28 are arranged around the lamp through holes 27. As shown in FIG. 3, the ozone gas unreacted with the inflow air can react more effectively with ultraviolet rays as shown in Equation (5) in the course of passing through the fine through holes in the direction of the arrow.

      The water layer 18 by nozzle sprayed water is formed on each said porous distribution board. The water layer 18 contributes to further increase the purification efficiency because dissolved in the air and the unreacted ozone in the water layer. That is, the ultraviolet ray is irradiated in the presence of the aqueous layer, and the radical oxidative radical is further generated by the radical chain reaction by reacting with the irradiated ultraviolet ray and the dissolved ozone of the aqueous layer to remove odor-causing substances present in the inflow air. .

      In each of the porous distribution plates 16, a plurality of water layer control devices 17 are arranged to be spaced apart by a predetermined interval. The water layer on the porous distribution plate is provided to be automatically drained to the water collection tank when a certain level. In addition, the thickness of the water layer is preferably installed so that 0.5 to 20cm. Because, when the water layer is smaller than 0.5cm, the time for reacting the inlet air with the water layer is short, and the purification efficiency of the inlet air is low, or when the water layer is higher than 20cm, the inlet air stays in the reactor with the load of the water layer. Is longer, but the total incoming air throughput is reduced.

      The water level control device 17 is configured in the form of a non-return valve, as shown in Figure 4 inlet air from the bottom to the upward direction, the fluid in the water layer is to pass the fluid from the top to the bottom direction. The non-return plate 34 of the water level control device 17 is not opened due to the air pressure introduced into the lower part at the beginning of operation, but is configured to open automatically when the water layer on the porous distribution plate reaches a certain level.

      In addition, in the present embodiment, the water level control device 17 is configured in the form of a non-return valve, but is not limited to this may be provided in the form of an oil trap (U-Trap).

     The filtration device 3 is equipped with a micro filter 30 in the filtration device to function to purify the contaminated circulating water stored in the collecting section of the reactor. This is because if the contaminated circulating water stored in the water collecting unit is not purified, the fine spray nozzle may be clogged.

The filtering device is used in the case where the bypass pipe is installed at the top to replace or repair the micro filter 30, and the bypass pipe is connected to the outlet line of the filtering device 3.

      Hereinafter, using the high-efficiency deodorization and air sterilization device (2) configured as described above, the process of purifying the inlet air will be described in detail.

      Inflow air and ozone gas are supplied to the reaction tank 11 of the high efficiency deodorization and air sterilization apparatus 2 as shown in FIG. 2. At this time, a part of the supply pipe of the ozone gas may be configured in a venturi form so that the ozone gas generated by the ozone gas generator 23 is mixed and contacted with the inflow air supplied thereto.

      As such, when the inflow air and the ozone gas are supplied, the reaction space is introduced into the reaction space 13 of the reaction tank 11. As a result, the inflow air and the ozone gas pass through the catalyst filter layer, the porous distribution plates, the porous distribution plate water layer, the ultraviolet lamps, and the fine nozzle spray water. Then, the inlet air is purified in the process, the purified air is discharged through the outlet, the process is as follows.

      First, when the inlet air passes through the catalyst layer, ozone mixed in the inlet air in the process is reacted under the catalyst as shown in Formulas (1) to (4). In addition, various odor-causing substances, harmful components, and pathogenic bacteria contained in the inlet air are partially removed by the catalytic reaction, and the others pass through the catalyst layer, thereby increasing the residence time.

      Next, the inlet air passing through the catalyst layer comes into contact with the porous distribution plate 16 and the porous distribution plate aqueous layer 18 sequentially. At this time, the inlet air and the unreacted ozone gas do not rise in each of the porous distribution plates and the porous distribution plate, but remain in the reaction space 13 or are dissolved in the aqueous layer, thereby increasing the residence time. As a result, the contact rate and dissolution rate of the ozone gas increase. In addition, since the contact with the fine droplet particles by the nozzle spray, the inlet air is more efficiently purified during irradiation of the ultraviolet lamp.

      Finally, the ozone gas and the dissolved ozone react with the ultraviolet rays irradiated from the ultraviolet lamp 10 as shown in Equation (4) to Equation 7 above, thereby generating additional hydroxyl radicals. At this time, since the fine through holes 28 of each of the porous distribution plates 16 are formed around the ultraviolet lamp, radicals of hydroxide are generated more efficiently than otherwise. In addition, ultraviolet rays are irradiated to the deodorized and air sterilized inlet air, that is, the purified air to sterilize various microorganisms and bacteria included in the purified air. In addition, fine water droplets by ozone or injection that are not dissolved in the water layer are adsorbed and absorbed by the demister 26 provided at the inlet of the discharge port and are not released to the outside.

      In the high efficiency deodorization and air sterilization apparatus configured as described above, the ozone gas having a very low dissolution rate and contact rate passes through the catalyst layer, the porous distribution plate, the porous distribution plate water layer, and the nozzle sprayed water, thereby dissolving and contacting the ozone gas. Can be increased. Further, not only the dissolved dissolved ozone is allowed to pass through the side-solvent layer but also the ultraviolet rays are irradiated to the dissolved ozone to efficiently generate radical radicals. Therefore, using the high efficiency deodorization and air sterilization device, it is possible to maximize the purification rate of the raw water compared to the conventional.

      On the other hand, in order to quantitatively confirm the effect as described above was performed as follows.

First, as shown in Figure 7 of the high efficiency deodorization and air sterilization device (①), the deodorization device (②) configured to supply only ozone water (ozone + sprayed water), and the deodorization device (③) configured to supply only ozone gas Inflow air was supplied to each of them to measure the degree of purification of the inflow air, and the experimental results are shown in FIG. 7. In Fig. 7, the correlation between the ratio of ammonia (NH ₃ ) and the reaction time before and after purifying the inlet air is shown. As shown in Figure 7, it can be seen that the purification efficiency of the high efficiency deodorization and air sterilization device (①) configured according to the present invention is the best. Therefore, in the high efficiency deodorization and air sterilization apparatus constructed in accordance with the present invention, it can be confirmed that the mixing and contact ratio of ozone gas, the dissolved rate, and the amount of radicals generated from the dissolved ozone are much higher than in other cases.

      In the above, the present invention has been described in detail with reference to preferred embodiments, but the present invention is not limited to the above embodiments, and various modifications may be made by those skilled in the art within the technical idea of the present invention. Is obvious.

      As described in detail above, the deodorization and air sterilization apparatus using the advanced oxidation process and the porous plate according to the present invention can improve the mixing and contact ratio of ozone gas, the dissolution rate, and the generation rate of hydroxyl radical, thereby inducing odor. In addition to improving the purification efficiency of the inlet air including substances, harmful components and pathogenic bacteria, it is possible to minimize the amount of ozone gas supply and the size of the device.

Claims (9)

      An inlet and an inlet air containing odor-causing substances, harmful components and pathogenic bacteria are contained in the inlet, and a reaction space in which the inlet air is supplied with ozone gas to purify the inlet air by ozone contained in the inlet air. And a reaction tank having a discharge port through which the purified air from the reaction space is discharged to the outside, a collecting part for storing internal circulation water in the lower part of the reaction tank, and filtration for purification of the circulating water stored in the collecting part of the reaction tank. Device; And a high oxidation means for generating hydroxyl radicals from the ozone to improve the purification efficiency of the inlet air. The high efficiency deodorization and air sterilization apparatus using a high oxidation process, wherein the high oxidation means comprises: And a catalytic filter part, an ultraviolet lamp, a porous distribution plate and a water layer part, and a spray nozzle part so that the ozone contained in the product and the unreacted ozone and the unreacted ozone are radically chain-reacted and the ozone is decomposed into an oxidizing strong radical. High efficiency deodorization and air sterilization apparatus using a high oxidation process, characterized in that. delete The method of claim 1, The spray nozzle constituting the spray nozzle part is located in the reaction space, the upper part of the catalyst filter to induce the catalytic reaction of the catalyst layer on the upper portion of the ultraviolet lamp to irradiate ultraviolet rays, the upper part of the porous distribution plate to form a water layer on the porous distribution plate. High efficiency deodorization and air sterilization apparatus, characterized in that installed in. The method of claim 1, The high-through deodorization and air sterilization device, characterized in that the fine through-holes perforated in the porous distribution plate to be distributed in 5 to 20mm size so as to be concentrated to be spaced at a predetermined interval around the ultraviolet lamp. The method of claim 1, The porous distribution plate is a high-efficiency deodorizing and air sterilizing device characterized in that the electrolytic polishing and coating with aluminum material and stainless material having high reflection efficiency of ultraviolet light emitted from the ultraviolet lamp. The method of claim 1, The water layer control device installed in the porous distribution plate is provided with a backflow prevention plate is installed so that the water level of the water layer portion formed on the porous distribution plate is maintained so that 0.5 to 20cm high efficiency deodorization and air sterilization device. delete The method of claim 1, High-efficiency deodorization and air sterilization apparatus, characterized in that the irradiation amount of ultraviolet rays of the ultraviolet lamp is irradiated at 2,500 to 7,000 kPa · sec / cm 2. In the highly efficient deodorization and air sterilization method using an advanced oxidation process, an inlet and an inlet air containing an odor-causing substance, a harmful component, and pathogenic bacteria are accommodated in the inlet, and an inlet air is supplied to the inlet air and ozone gas is supplied thereto. A reaction tank having a reaction space for purifying the inlet air by ozone included in the reaction chamber, an outlet for discharging air purged from the reaction space to the outside, and a collecting unit for storing internal circulation water under the reaction tank; A filtration device for purifying circulating water stored in a collecting part of the reaction tank; And a high efficiency deodorization and an air sterilization device having a high efficiency deodorization and air sterilization device including a catalytic filter part, an ultraviolet lamp, a porous distribution plate and a water layer part, and a spray nozzle to generate hydroxyl radicals from the ozone to improve the purification efficiency of the inlet air. And an air sterilizer arrangement step; An inlet air and ozone gas supplying step of supplying inlet air to the reactor and supplying ozone gas to the air supplied thereto; Air supplied to the reactor, ozone mixed in the air, and the ozone gas which causes the ozone gas to pass through the catalyst layer and decomposes the ozone into oxidative radical hydroxides by a radical chain reaction induced in the passage process. Passing the catalyst bed; Increasing the residence time of the ozone gas by causing the inflow air and the ozone gas to pass through the catalyst layer to be caught in the porous distribution plate and the water layer; Reactive ozone passing through the fine through hole and the water layer of the porous distribution plate reacts with the ultraviolet rays irradiated from the fine nozzle sprayed water and the ultraviolet lamp to radically chain the unreacted ozone to generate a radically strong hydroxyl radical. Making a step; High efficiency deodorization and air sterilization method using a high oxidation process, characterized in that it comprises a; outflow of the purified air after oxidizing and decomposition of harmful substances in the introduced air.

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