Deodorizing device and method of use thereof, and deodorizing method

Abstract

The present invention provides a low-cost, highly efficient deodorizing device, a method for using the deodorizing device, and a deodorizing method. [Solution] The deodorizing device 10 comprises at least a main body 12, a supply device 16 that supplies a deodorizing liquid 14 containing a radical generating catalyst and at least one selected from the group consisting of halogenous acid, halogenous acid ions, and halogenated salts into the main body 12, a gas introduction device 20 that introduces a gas 18 containing odor components into the main body 12, and a gas-liquid contact section 22 provided inside the main body 12 to bring the deodorizing liquid 14 into contact with the gas 18. The supply device 16 is configured to circulate the deodorizing liquid 14 within the main body 12 by passing it through the gas-liquid contact section 22.

Description

Technical Field

[0001] The present invention relates to a low-cost and high-efficiency deodorizing device, a method for using the same, and a deodorizing method.

Background Art

[0002] In the living environment, there are places where odors are generated, such as livestock barns and compost of food waste. In livestock barns and the like, it is impossible to completely remove the causes of odors from animals and compost, etc., so odors are constantly generated, which has become a problem.

[0003] On the other hand, as a facility for removing malodors, a deodorizing device using a filler made of carbon ceramic is known. Also, a deodorizing device that performs gas-liquid contact treatment using a caustic soda-sodium hypochlorite solution with a filler made of a ceramic porous body as a carrier is known (for example, see Patent Documents 1 and 2).

[0004] Furthermore, a deodorizing device provided with means for supplying a mist containing microbubbles or nanobubbles to a malodor generation site to treat malodor components is known (for example, see Patent Document 3).

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0006] As mentioned above, various types of equipment have been known to remove unpleasant odors, but the mainstream type of deodorizing equipment used in livestock farming and other industries has been one that flows well water or similar water through a wet scrubber. However, well water and similar water often fail to sufficiently remove odor components, resulting in the problem of odors spreading into the surrounding environment. The scrubber in the above-mentioned deodorizing equipment is a device that removes various harmful gases contained in exhaust from research facilities, factories, etc. Two types are known: dry scrubbers that remove harmful gases using activated carbon, etc., and wet scrubbers that remove harmful gases by contact with water or chemical solutions.

[0007] Of these, wet scrubbers tended to be large and costly, as they used expensive metal packing materials to improve the gas-liquid contact efficiency and employed auxiliary equipment to enhance their deodorizing efficiency. In addition, measures such as manually spraying deodorizers without installing deodorizing equipment were also taken, but while this measure was low-cost, it was time-consuming and had a limited range of effectiveness.

[0008] Therefore, the purpose of this disclosure is to provide a low-cost and highly efficient deodorizing device, a method for using the deodorizing device, and a deodorizing method. [Means for solving the problem]

[0009] One aspect of the present disclosure is a deodorizing device comprising: a main body; a supply device for supplying an aqueous solution (hereinafter referred to as a deodorizing liquid) containing at least a radical generating catalyst and at least one selected from the group consisting of halogenous acid, halogenous acid ions, and halogenated salts into the main body; a gas introduction device for introducing a gas containing odor components into the main body; and a gas-liquid contact section provided inside the main body for bringing the deodorizing liquid and the gas into contact, wherein the supply device is configured to circulate the deodorizing liquid within the main body by passing it through the gas-liquid contact section. [Effects of the Invention]

[0010] According to this disclosure, by bringing a deodorizing liquid agent and odor components into gas-liquid contact, a deodorizing device that provides highly efficient deodorizing effects that last for a long period of time can be constructed at low cost. [Brief explanation of the drawing]

[0011] [Figure 1] This is a schematic diagram of the deodorizing device according to an embodiment. [Figure 2] This is a schematic diagram of a deodorizing device according to another embodiment. [Figure 3] This is a schematic diagram showing other configuration examples of the contact area. [Figure 4] This is a schematic diagram showing an example configuration in which a single deodorizing device treats odors in multiple locations. [Modes for carrying out the invention]

[0012] Figure 1 is a schematic diagram showing an example of the configuration of a deodorizing device 10 according to the first embodiment. The deodorizing device 10 includes a main body 12, a supply device 16 that supplies an aqueous solution containing at least a radical generating catalyst and at least one selected from the group consisting of halogenous acid, halogenous acid ions, and halogenated salts as a deodorizing liquid agent 14 into the main body 12, a gas introduction device 20 that introduces a gas 18 containing odor components into the main body 12, and a gas-liquid contact part 22 provided inside the main body 12 that brings the deodorizing liquid agent 14 and the gas 18 into contact.

[0013] In the illustrated example, the main body 12 is cylindrical and has a lower part 24 into which gas 18 is introduced, an upper part 26 for discharging gas 18, and an intermediate part 28 located between the lower part 24 and the upper part 26 and housing a gas-liquid contact part 22. In this embodiment, a packing material is described as the gas-liquid contact part 22, but it is not limited to this, and for example, multiple metal honeycomb plates, metal tubes or rod-shaped objects can also be used. The supply device 16 is fluidically connected to the lower part 24 and has a liquid tank 30 capable of holding a predetermined amount of deodorizing liquid 14, and a supply unit 32 configured to suck the deodorizing liquid 14 from the liquid tank 30 and supply it to the upper part 26 of the main body 12. In the illustrated example, the supply unit 32 is a sprayer located inside the upper part 26 of the main body 12 and is configured to evenly spray the deodorizing liquid 14 toward the intermediate part 28 of the main body 12.

[0014] The gas introduction device 20 is positioned near the source of the odor and has a gas collection pipe 33, such as a duct, that collects gas 18 using a fan or blower (not shown), and a gas flow path 34, such as a duct, that is fluidly connected to the lower part 24 of the main body 12, and is configured to introduce gas 18 into the lower part 24. The gas introduction device 20 may also optionally have a separation device that separates and removes components other than predetermined components (in this case, volatile organic compounds that the deodorizing liquid agent 14 can efficiently deodorize) from the gas 18. For example, it may have a gas-liquid separation tank 36 and a liquid flow path 38, such as a pipe, that connects the gas-liquid separation tank 36 and the gas flow path 34. This allows water and water-soluble components such as ammonia contained in the gas 18 to be captured in the gas-liquid separation tank 36 without being introduced into the main body 12. In particular, alkaline components such as ammonia may suppress the deodorizing effect of the deodorizing liquid agent 14, so the deodorizing effect inside the main body 12 can be enhanced by removing alkaline components in advance using an acid trap or the like.

[0015] The filler material 22, which is placed in the intermediate section 28 of the main body 12, is, for example, a resin filler material, and is placed on a perforated plate 40 or the like provided between the lower section 24 and the intermediate section 28, and is configured to allow the deodorizing liquid agent 14 from the supply section 32 and the gas 18 from the lower section 24 to come into gas-liquid contact. This gas-liquid contact allows the deodorizing liquid agent 14 to deodorize the gas 18, more specifically, to reduce the T-VOC (Total-VOC) in the gas 18. Here, VOC refers to volatile organic compounds contained in the gas 18. Examples of volatile organic compounds include aromatic hydrocarbons such as benzene, toluene, ethylbenzene, xylene, n-propylbenzene, 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, 2-ethyltoluene, styrene, naphthalene, and 4-phenylcyclohexene; aliphatic hydrocarbons such as n-hexane, n-heptane, n-octane, n-nonane, n-decane, n-undecane, n-dodecane, n-tridecane, n-tetradecane, n-pentadecane, n-hexadecane, 2-methylpentane, 3-methylpentane, 1-octene, and 1-decene; cyclic alkanes such as methylcyclopentane, cyclohexane, and methylcyclohexane; terpenes such as 3-carene, α-pinene, β-pinene, and limonene; and alcohols such as 2-propanol, 1-butanol, 2-ethyl-1-hexanol, and glycols / glycol ethers. Examples include 2-methoxyethanol, 2-ethoxyethanol, 2-butoxyethanol, 1-methoxy-2-propanol, 2-butoxyethoxyethanol, and aldehydes such as butyraldehyde, valeraldehyde, hexanal, nonanal, and benzaldehyde.

[0016] T-VOC is an index that combines those volatile organic compounds, and in the present invention, the amount of T-VOC contained in gas 18 is measured. For example, when the cause of odor generation is due to livestock manure or the like, the main components of T-VOC are ammonia and hydrogen sulfide. On the other hand, when the cause is due to food waste or the like, it is known that methane and trimethylamine become the main components. Therefore, the deodorizing effect of the target air can be evaluated by using the change in the amount of T-VOC before and after the deodorization treatment of the target air as an index.

[0017] The deodorized gas 18 is discharged from the discharge port 44 formed in the upper part 26 by the fan 42 arranged in the upper part 26. On the other hand, the deodorizing agent 14 is adapted to circulate inside the main body 12. Specifically, after being discharged from the lower part 24 and returning to the liquid agent tank 30, it can be supplied again into the upper part 26 from the supply part 32. The transfer of the deodorizing agent 14 from the liquid agent tank 30 to the supply part 32 can be performed by a pump or the like (not shown).

[0018] In the present invention, as the deodorizing agent 14, an aqueous solution containing at least a radical generation catalyst and at least one selected from the group consisting of hypohalous acid, hypohalous acid ion, and hypohalite (hereinafter also referred to as "main agent") is used. Specifically, "Aqua Create DEO" (manufactured by Earth Pharmaceutical Co., Ltd.) containing sodium chlorite as the main agent can be cited. According to such a deodorizing agent 14, deodorization and sterilization are performed on the odor components and bacteria of the gas taken into the agent by the action of the aqueous radicals generated from the deodorizing agent 14. Furthermore, since radicals are continuously generated by the chemical equilibrium of the main agent remaining in the deodorizing agent 14, the deodorizing effect and the sterilizing effect can be exerted over a long period of time.

[0019] [[ID= ]] The gas-liquid contact portion 22 preferably uses a filler containing resin, and more preferably the entire portion is made of resin. By forming the filler from resin, the load-bearing capacity design of the filler portion can be simplified compared to using a metal filler, and the weight of the deodorizing device 10 can be significantly reduced. Furthermore, resin fillers offer greater flexibility in shaping to increase the specific surface area, improving gas-liquid contact efficiency compared to metal fillers. In addition, since resin fillers can be manufactured by resin molding, they can be made at a lower cost compared to metal fillers. The deodorizing liquid agent 14 used in the deodorizing device 10 does not easily react chemically with resin, making it suitable for reducing odor components of gas.

[0020] The filler may be a porous material made from ceramic, metal, or resin. When a porous material is used, its pore size can be changed according to the contact and reaction time with the target odor components. For example, if the odor components contain many non-polar components with low reactivity, it is preferable to select a small pore size in order to extend the contact time. On the other hand, if the odor components contain many polar components with high reactivity, it is preferable to select a larger pore size in order to prioritize the ease of fluid flow.

[0021] Since the deodorant liquid agent 14 used in the present disclosure has the property of being activated by light, in the main body 12, the accommodating portion (here, the middle portion 28) that accommodates the gas-liquid contact portion (packing material) 22 is preferably made of a translucent material such as a transparent or translucent resin or glass. As a result, the deodorant effect is enhanced by the activation of the deodorant liquid agent 14 by light, enabling more efficient deodorization. In addition to the middle portion 28, the packing material 22 is also preferably made of a translucent material such as a transparent or translucent resin. Since light can easily reach the packing material 22 near the center of the middle portion 28, more efficient deodorization is possible. Furthermore, if the packing material 22 is made light-colored, it becomes easier to visually recognize dirt or the like on the packing material 22, and effects such as making it easier for an operator to grasp the replacement timing of the packing material 22 can be obtained. Also, since the middle portion 28 is translucent, it is possible to check the state of the packing material 22 inside the middle portion 28 (such as whether the packing material 22 is unevenly distributed). For example, when the packing material 22 is unevenly distributed in the main body 12, it is possible to perform control such as intentionally increasing the amount of gas flowing into the main body 12 and moving the packing material 22 with the pressure so that it is uniformly distributed in the main body 12.

[0022] The filling rate of the packing material 22 in the middle portion 28 can be appropriately set from the viewpoint of more efficiently removing odor components. A guideline for the filling rate can be set based on whether a gas with a predetermined flow rate can suitably pass through the middle portion 28. For example, if the filling rate is too high, during operation, the packing material 22 installed in the middle portion 28 may not be stable at the desired gas flow rate, and pulsation of the deodorant liquid agent 14 may occur. When pulsation occurs, problems such as the deodorant liquid agent 14 staying in the gas-liquid contact portion (packing material) 22 while the deodorant liquid agent 14 overflows from the upper portion 26 of the main body 12 may occur, and a predetermined deodorizing performance may not be obtained. Therefore, it is preferable to check the gas flow rate visually or by a sensor described later, and remove the packing material 22 as necessary to lower the filling rate and stabilize the gas flow rate. Specifically, visually check for the presence of inconvenient phenomena such as pulsation. If pulsation or the like occurs, first, control the flow rate of the odor gas to be introduced. At that time, if the pulsation or the like does not stop even when the flow rate of the odor gas is lowered within a range where there is no practical problem, it is preferable to take measures such as partially removing the packing material 22.

[0023] Figure 2 is a schematic diagram showing an example of the configuration of the deodorizing device 10' according to the second embodiment. In the second embodiment, the differences from the first embodiment will be mainly described, and parts that are the same as in the first embodiment will be given the same reference numerals and detailed descriptions will be omitted.

[0024] The supply device 16' is similar to the first embodiment in that it has a supply unit 32, but it does not have a liquid tank. Instead, it has a pump 46 located in the lower part 24 of the main body 12, and a flow path 48 such as a pipe or tube that fluidly connects the pump 46 and the supply unit 32 through the inside of the main body 12. In this way, the lower part 24 also functions as a liquid tank, and all the components of the supply device 16' are housed within the main body 12, so the entire deodorizing device 10' can be made compact.

[0025] The lower part 24, upper part 26, and intermediate part 28 of the main body 12 can be made separable from one another. Specifically, the upper part 26 and the intermediate part 28 can be separated at a boundary 64, and the upper part 26 and the intermediate part 28 can be detachably connected to each other by relatively simple connecting means such as a clamp 65. Similarly, the lower part 24 and the intermediate part 28 can be separated at a boundary 66, and the lower part 24 and the intermediate part 28 can be detachably connected to each other by relatively simple connecting means such as a clamp 67. Such a divided structure allows for various arrangements of the deodorizing device 10', such as replacing only one of the lower part 24, upper part 26, and intermediate part 28. It also makes it easier to replace the packing material if it is worn, damaged, or deteriorated. Furthermore, depending on the properties of the odor gas (for example, the difficulty of deodorization), the number of layers (number of connections) of the packing material and the height (volume) of the gas-liquid contact area can be increased or decreased, or multiple types of packing materials with different materials and porosity can be combined (connected) as separate intermediate parts.

[0026] The deodorizing device 10' shown in Figure 2 can also be easily maintained. For example, by separating and removing the intermediate section 28 from the upper section 26 and lower section 24, then replacing the packing material 22 inside the intermediate section 28 with another packing material, and then reconnecting the intermediate section 28 to the upper section 26 and lower section 24, only the packing material 22, which is relatively prone to soiling and requires frequent replacement, can be easily replaced. In addition, the gas-liquid contact time can be extended by increasing the overall length of the intermediate section 28. Furthermore, the intermediate section 28 may be configured in multiple stages, with different packing materials filling each stage to allow odor gases to flow in stages.

[0027] As for specific maintenance (usage) methods, for example, one could monitor the concentration of sodium chlorite, the main ingredient in the deodorizing liquid 14, using an appropriate concentration sensor, or visually inspect the filler material for dirt, etc. The results obtained from these inspections would be used as indicators, and when the indicator falls outside the acceptable range determined based on predetermined judgment criteria, the filler material would be replaced or otherwise taken care of.

[0028] The deodorizing device 10' may have an odor sensor 68 that measures the odor level of the gas collected in the gas introduction device 20. The deodorizing device 10' may also have a processing unit 62, such as a personal computer (PC), which is wired or wirelessly connected to the odor sensor 68, pump 46, and fan 42 and has a processor incorporating an algorithm to control their operation. With such a configuration, for example, fine control and adjustment are possible, such as controlling the pump 46 to increase or decrease the circulation amount of the deodorizing liquid 14 according to the odor level of the gas 18 detected by the odor sensor 68, or controlling the fan 42 to increase or decrease the introduction and discharge of gas 18 to the main unit 12.

[0029] The odor sensor 68 may have a function to measure the gas 18 or ambient temperature, and the supply device 16' may be configured to supply water into the main body 12 in addition to the deodorizing liquid 14. This allows the arithmetic processing unit 62 to supply water to the packing material 22 when the gas 18 or ambient temperature exceeds a predetermined value, and to lower the temperature of the gas discharged from the deodorizing device 10' by utilizing the heat of vaporization of the water. Furthermore, the concentration of the deodorizing liquid 14 supplied to the upper part 26 can be adjusted according to the odor level of the gas 18. For example, the supply device 16' may be provided with a concentration adjustment device (not shown) that supplies the undiluted deodorizing liquid 14 to the supply device 16'. By using the concentration adjustment device in combination with the concentration sensor described above, it becomes possible to supply a high concentration of deodorizing liquid 14 according to the odor level of the gas 18. Conversely, when it is desired to lower the concentration of the deodorizing liquid 14, water can be supplied to the supply device 16' as described above.

[0030] A filter 60 may be provided at the discharge port 44 formed in the upper part 26 of the main body 12 to prevent the deodorizing liquid 14 from becoming fine particles and diffusing outside the deodorizing device 10'. The filter 60 can suppress the reduction in the amount of deodorizing liquid 14 circulating inside the main body 12.

[0031] Referring again to Figure 1, the deodorizing device 10 may have an outer wall 70 on the outside of the main body 12. By providing an outer wall 70, the main body 12 can be protected from external impacts, and depending on the shape and installation of the main body 12, it can be prevented from tipping over.

[0032] Furthermore, if the intermediate section 28 of the main body 12 of the deodorizing device 10 is translucent, it may have an illumination device 72 for irradiating the intermediate section 28 with light. Depending on the installation position of the deodorizing device 10, it may be difficult for light to reach the intermediate section 28, and the above-mentioned photoactivation effect may not be sufficiently obtained. In such cases, the illumination device 72 can be used to irradiate the intermediate section 28 with light to obtain a sufficient photoactivation effect. Regarding photoactivation, the deodorizing liquid agent 14 can generate chlorine radicals and reactive oxygen species with higher deodorizing activity by irradiating chlorine dioxide radicals generated from chlorite ions, for example, with light (especially ultraviolet light). Therefore, if you want to increase the deodorizing effect, it is particularly preferable to irradiate the filler material 22 with light.

[0033] The illumination device 72 is particularly useful when the aforementioned exterior wall 70 is provided. Furthermore, by using the illumination device 72 in combination with the aforementioned odor sensor 68, it becomes possible to control the illumination device 72 to further enhance its photoactivation effect, for example, by increasing its output when the odor sensor 68 detects a high concentration of odor.

[0034] The filler 22 may be coated with a material having a photocatalytic effect, such as titanium dioxide. This further improves the deodorizing and antibacterial performance through light irradiation.

[0035] Figure 3 shows a modified example of the main body 12. The gas-liquid contact section housed in the intermediate section 28 can be configured in multiple stages. In the illustrated example, the upper gas-liquid contact section (filler) 22a and the lower gas-liquid contact section (filler) 22b are separated by a predetermined distance. This allows for variations in the type, shape, and density of the filler material between the upper gas-liquid contact section 22a and the lower gas-liquid contact section 22b, increasing the design flexibility of the deodorizing device.

[0036] Furthermore, a liquid draining means 74, such as a valve for draining liquid from the main body 12, may be provided between the upper gas-liquid contact portion 22a and the lower gas-liquid contact portion 22b. Depending on the density and shape of the filler material, the optimal amount of liquid to be circulated may differ, so by providing the liquid draining means 74, the optimal amount of liquid can be flowed at each contact portion.

[0037] The deodorizing device described herein can be installed in multiple units within the same environment. While typical scrubbers are often used individually, odor levels may vary depending on the location within livestock barns and similar facilities. By installing multiple deodorizing devices, flexible operation becomes possible, such as individually setting the circulation volume and concentration of the liquid agent according to the odor level around each device.

[0038] Furthermore, the deodorizing device according to this disclosure can also process odors from multiple locations with a single unit. For example, as shown in Figure 4, a gas introduction device 20″ having multiple gas collection pipes 33 can be prepared, and each gas collection pipe 33 can be configured to send gases 18a, 18b, and 18c from different odor sources to the main unit 12 and the gas-liquid separation tank 36. In addition, by providing an odor sensor 68 in each gas collection pipe 33 and connecting each odor sensor 68 to a processing unit 62 in a communicative manner, it becomes possible to perform efficient control such as adjusting the gas flow rate of each gas collection pipe 33 according to the concentration detected by the odor sensor 68. In the illustrated example, the odor sensor 68 measures the odor of the gas before it is taken into the deodorizing device 10″, but similar odor sensors may be provided downstream of the deodorizing device 10″ or at the exhaust port to monitor the deodorizing effect of the deodorizing device 10″.

[0039] The table below shows test data for treating odors discharged from livestock manure compost using the deodorizing device according to this embodiment. Specifically, a fixed amount of deodorizing liquid 14 was circulated while a fixed amount of odor was introduced into the deodorizing device, and the reduction in volatile organic compounds (T-VOCs) contained in the gas discharged from the deodorizing device from the time of installation was measured using gas chromatography at 1 hour, 24 hours, and 1 month after the start of the test. The test was conducted using four types of deodorizing liquid 14 with different mass percentages of sodium chlorite in the aqueous solution, and a test using well water instead of the deodorizing liquid 14 was also conducted for comparison. The meaning of each symbol in the table below is as follows. ◎: A VOC reduction effect of 95% or more was observed. ○: A VOC reduction effect of 90-95% was observed. △: A VOC reduction effect of 80-90% was observed. ×: A VOC reduction effect of less than 80% was observed.

[0040] [Table 1]

[0041] As can be seen from the table above, when using the deodorizing liquid 14, the VOC reduction effect decreased somewhat when operated for a long period of one month at a low concentration of 5 ppm, but under other conditions, very good results were obtained, with VOCs reduced by more than 90%. On the other hand, when using well water, VOCs were reduced by less than 80% under all conditions, demonstrating the superior deodorizing effect of the deodorizing liquid 14. Furthermore, at concentrations of 30 to 100 ppm, sufficient deodorizing effect can be obtained by circulating a certain amount of deodorizing liquid 14 for one month, indicating that the amount and frequency of replenishing the deodorizing liquid 14 according to the operating time are significantly lower compared to well water. Here, ppm refers to the ratio of the main ingredient to the total amount of deodorizing liquid 14.

[0042] Table 2 below shows test data obtained under the same conditions as Table 1 above, except that the intermediate section filled with the filler was made of a translucent material and the intermediate section was irradiated with light. Light irradiation was carried out continuously at least while the deodorizing device was in operation, and ultraviolet light with a wavelength of 260 nm was used for irradiation.

[0043] [Table 2]

[0044] Table 2 shows that when light irradiation is performed, a high deodorizing effect can be obtained even at a low concentration of 15 ppm or less of the liquid agent, and even for a relatively short period such as 1 hour or 24 hours.

[0045] The deodorizing device according to this disclosure uses a deodorizing liquid containing a radical generating catalyst and at least one selected from the group consisting of halogenous acid, halogenous acid ions, and halogenated salts, so it can significantly reduce odor components over a longer period than well water, etc. Furthermore, because the deodorizing liquid has the property of not reacting easily with resin, inexpensive resin can be used for the filler material that constitutes the gas-liquid contact part. In addition, by forming the part containing the filler material with a translucent material, it can be activated by light and an even higher deodorizing effect can be achieved.Therefore, a deodorizing device with an extremely high deodorizing effect can be constructed at a low cost compared to conventional scrubbers, etc., and the odor environment in living environments, etc. can be greatly improved.As can also be seen from the above test results, when the concentration of the main ingredient in the deodorizing liquid is high, the high deodorizing effect is maintained even when used for a long period of time, so the deodorizing device can be a circulating type that can repeatedly use the deodorizing liquid.In addition, devices that use well water have constraints such as needing to be installed near the well, but the deodorizing device of this disclosure, which is a liquid-circulating type, can be installed in any location, so it is less subject to constraints on installation location and has excellent maintainability. [Explanation of symbols]

[0046] 10, 10' Deodorizing device 12 Main unit 14 Deodorizing liquid 16, 16′ feeding device 18 Gas 20 Gas introduction device 22, 22a, 22b Gas-liquid contact part 24 Lower 26 Top 28 Middle section 30 liquid tanks 32 Supply section 34 Gas flow path 36. Gas-liquid separation tank 38 Liquid flow path 40 Perforated plate 42 Fans 44 Outlet 46 pumps 48 channels 60 filters 62 Arithmetic Processing Unit 65, 67 Clamper 68 Odor Sensor 70 Exterior Wall 72 Lighting device

Claims

1. The main unit and A supply device that supplies an aqueous solution containing at least a radical generating catalyst and at least one selected from the group consisting of halogenous acid, halogenous acid ions, and halogenated salts into the main body, A gas introduction device for introducing a gas containing odor components into the main body, A gas-liquid contact section is provided inside the main body to bring the aqueous solution and the gas into contact, It has, The supply device is configured to circulate the aqueous solution within the main body by passing it through the gas-liquid contact section. A deodorizing device in which, of the main body, the housing portion that houses the gas-liquid contact portion is made of a light-transmitting material, and the gas-liquid contact portion is made of a light-transmitting material.

2. The deodorizing device according to claim 1, wherein the supply device has a concentration adjustment device for adjusting the concentration of the aqueous solution.

3. The deodorizing device according to claim 1 or 2, wherein the main body has a lower part into which the gas is introduced, an upper part for discharging the gas, and an intermediate part disposed between the lower part and the upper part for housing the gas-liquid contact part, and the lower part, the upper part and the intermediate part are detachably connected to each other.

4. The deodorizing device according to claim 1 or 2, wherein the gas-liquid contact portion is a filler material containing a porous material made from resin or ceramic.

5. The deodorizing device according to claim 1 or 2, comprising: an odor sensor for measuring the odor level of the gas collected in the gas introduction device; and a processing unit which is wired or wirelessly connected to the odor sensor and a pump for circulating the aqueous solution within the main body, and which controls the operation of the odor sensor and the pump.

6. The deodorizing device according to claim 1 or 2, further comprising an illumination device for irradiating the housing portion with light.

7. A method of deodorizing using the deodorizing device described in Claim 1 or 2, The device is supplied with an aqueous solution containing at least a radical-generating catalyst and at least one selected from the group consisting of halogenous acid, halogenous acid ions, and halogenated salts. Introducing a gas containing odor components into the main body, The process involves bringing the aqueous solution and the gas into contact inside the main body, The aqueous solution is circulated within the main body, Deodorizing methods, including those mentioned above.

8. A method for using the deodorizing device according to claim 1 or 2, The main body is configured to have a lower part into which the gas is introduced, an upper part for discharging the gas, and an intermediate part positioned between the lower part and the upper part for housing the gas-liquid contact portion. The lower part, the upper part, and the intermediate part are connected to each other so as to be separable from one another. The intermediate portion is separated and removed from the upper and lower parts, Replacing the gas-liquid contact portion within the intermediate portion with another gas-liquid contact portion, The intermediate section is connected to the upper and lower sections, Instructions for use, including those for which instructions are provided.

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