JP2006280774A - Airborne molecular contaminants removal method and apparatus, and deodorizing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a novel method and apparatus for efficiently removing airborne molecular contaminants from air using adsorptive and absorptive force of active cluster water, to provide an airborne molecular contaminants removal method and apparatus having a high AMC (Airborne Molecular Contaminants) removal speed by hybridizing photocatalytic oxidation and decomposition reaction with the active cluster water, and to provide a deodorizing apparatus. <P>SOLUTION: The active cluster water is aerosolized, and the aerosolized cluster water is flocculated or condensed using the airborne molecular contaminants in gas as nucleus to remove the airborne contaminant molecules from the gas. This airborne molecular contaminants removal method improves AMC removing reaction time by passing the gas through a contaminant removal filter using the photocatalytic oxidation and decomposition reaction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The invention of the present application is based on the use of the adsorptive and absorptive power of active cluster water (indicating unimolecular water), or by hybridizing the photocatalytic reaction to this active cluster water, The present invention relates to a method and apparatus for effectively removing odorous substance molecules (hereinafter abbreviated as AMC) and obtaining odorless and high-quality air.

  A water scrubber method is known as a method for removing pollutant molecules or odorant molecules in the atmosphere. This method is a method in which a gas containing pollutants and the like is sent into cleaning water, and collected and separated in a droplet or liquid film of cleaning water, and is a method that effectively utilizes the characteristics of water molecules. . In the water scrubber method, since dissolution by gas-liquid phase conversion is a mechanism for removing contaminants, contaminants that can be removed are limited to hydrophilicity. Therefore, the AMC removal rate is also limited by itself.

Patent Document 1 discloses an apparatus for removing nitrogen oxides in the atmosphere by this method and a method for using the same, and various devices have been made to make separation of pollutants effective. A sufficient result is not obtained in the removal efficiency.
Japanese Patent No. 3483208

  In recent years, it has been found that AMC in the air in a clean room has an adverse effect on the yield of products that require microfabrication in advanced industries such as the semiconductor industry. In addition to conventional contamination control of fine particles, AMC The need for pollution control has begun to be recognized. That is, in recent nano-level product processing, it has become impossible to ignore molecular level contamination from materials and manufacturing equipment.

  The general solution to this problem at present is to multiplex filters using anion exchange fibers for acidic gas, cation exchange fibers for alkaline gas, activated carbon for organic substances, and glass fibers for fine particles. This is done by using a chemical filter.

  However, since the above method requires simultaneous removal of AMC and fine particles, the pressure loss becomes high, and it is inefficient from the viewpoint of energy saving. In addition, it is difficult to estimate the lifetime of a chemical filter such as activated carbon or ion exchange fiber used as an AMC removal filter, and after use, it is converted into industrial waste, which causes various problems when discarded.

  As another solution of this problem, a method of decomposing and removing AMC using a photocatalytic oxidative decomposition reaction or a non-thermal equilibrium plasma oxidative decomposition reaction is known. These removal methods have the advantage that the pressure loss is not so high as in the above-described method, and batch decomposition and removal are possible, but each also has the following problems.

For example, in an apparatus using a photocatalytic oxidative decomposition reaction, the decomposition reaction of AMC is slow, the AMC removal rate is not sufficient, and a by-product is generated during decomposition. On the other hand, when the non-thermal equilibrium plasma oxidative decomposition reaction is used, it is necessary to treat and dispose a large amount of O ₃ , and at the same time, the oxidative decomposition reaction apparatus becomes large.

  The present invention is not intended to improve the above-mentioned methods but to devise and provide a completely new removal method having an extremely high removal rate in order to solve the above problems. That is, a new method and apparatus that efficiently removes AMC from the gas using the adsorption / absorption capacity of AMC and active cluster water by refocusing on the properties of water molecules themselves (bonded state and dipole activity, etc.). The purpose is to provide. It is another object of the present invention to provide a method for removing scattered pollutant molecules, a device therefor, and a deodorizing device that have a faster reaction rate by hybridizing the new method and the conventional method.

  In order to achieve the above object, in the method for removing scattered pollutant molecules according to claim 1, the active cluster water is aerosolized, and the aerosolized active cluster water is condensed or condensed by using the scattered pollutant molecules in the gas as a nucleus. Remove scattered pollutant molecules from the gas. As described in claim 2, it is effective that the active cluster water is an aggregate water (cluster water) in which 2 to 20 water molecules are combined, and particularly as described in claim 3, When it becomes aggregate crystal water (cluster ice) produced by quenching water vapor and having 2 to 7 water molecules bonded mainly by hydrogen bonds, it exhibits a higher removal effect.

  The method for removing scattered pollutant molecules according to claim 4 is a hybrid method of the method of claim 1 and the conventional photocatalytic oxidative decomposition reaction, wherein the method for removing scattered pollutant molecules in the method of claim 1 In order to pass the gas through a contaminant removal filter using photocatalytic oxidative decomposition reaction, before or after agglomerating or condensing aerosolized active cluster water with the scattered pollutant molecules as nuclei It is a thing.

  The scattered pollutant molecule removing apparatus according to claim 5 is a cluster supply means for aerosolizing and spraying cluster water or cluster ice in a sealed space, and agglomerating or condensing using the scattered pollutant molecules in the gas in the space as a nucleus. Waste water treatment means for discarding the water droplets outside the space.

  The scattered pollutant molecule removing apparatus according to claim 6 is a cluster supplying means for aerosolizing and spraying cluster water or cluster ice in a sealed space, and agglomerating or condensing using the scattered pollutant molecules in the gas in the space as a nucleus. The wastewater treatment means for discarding the droplets outside the space, and a photocatalytic filter that irradiates the photocatalytic material with ultraviolet rays to cause an oxidative decomposition reaction are provided. And it is comprised so that a scattering contaminant molecule | numerator may be removed from the inside of a space by circulating the gas in this space through a photocatalyst filter.

  The deodorizing apparatus according to claim 7 considers the case where the scattered pollutant molecule is an odorous substance. According to the above-described means configuration, the following operational effects can be obtained.

  In the method for removing scattered pollutant molecules according to the present invention, the aerosolized active cluster water is captured by contact with the pollutant and is removed by agglomerating or condensing into droplets, so that the apparatus does not increase in size. Also, the removal method has a very fast reaction rate. Furthermore, as shown in the experimental results to be described later, since the removal can be performed uniformly regardless of the nature (hydrophilicity or hydrophobicity) of the scattered contaminant molecules, the removal rate of the scattered contaminant molecules can be increased.

  In particular, when cluster ice is used as active cluster water, AMC is absorbed and adsorbed in the vacancies of five-membered and six-membered cluster ice mainly composed of hydrogen bonds, so that AMC is efficient regardless of the nature of AMC. Since it can be captured well, nanometer-class gaseous contaminants can be effectively removed, and the removal rate can be greatly increased. In addition, even when cluster water with 2 to 20 water molecules bonded is used, it is adsorbed and absorbed by hydrogen bonds in the gaps in the chain structure of water molecules, so a high removal rate is achieved according to cluster ice. Can be achieved.

In the present invention, when the photocatalytic oxidative decomposition reaction and cluster ice are hybridized, not only can the removal rate be increased for various types of AMC except NH ₃ , but also the reaction rate can be increased. On the other hand, even when the photocatalytic oxidative decomposition reaction and the cluster water are hybridized, the removal rate of various types of AMC can be increased except for some AMC such as NH ₃ from the relationship with the oxidative decomposition reaction force of the photocatalyst.

  According to the scattered pollutant molecule removing apparatus according to the present invention, the aerosolized active cluster water is sprayed on the AMC floating in the space to form droplets, and can be immediately treated as wastewater outside the space. High quality gas (air) can be made. In particular, the air may be circulated through the photocatalytic filter to further improve the removal rate and reduce the removal time.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a conceptual diagram for explaining the principle of a scattered contaminant molecule removal method and apparatus according to the present invention. In this method or apparatus, a floating gas of AMC (represented by a circle) is passed through the duct 10. On the other hand, aerosolized active cluster water is injected from the cluster water inlet 11 of the duct 10. Active water molecules (represented by x) in the active cluster water absorb and adsorb AMC, and then immediately aggregate or condense to form droplets 12 and adhere to the wall of the duct 10. Thereafter, the wastewater treatment means 13 immediately removes the droplets from the duct 10 and processes them to obtain odorless and clean air.

Acid gas sulfur dioxide (SO ₂ ) and basic gas ammonia (NH ₂ ), which are defined as concentration standards, are substances that are familiar and are thought to affect the yield of semiconductor products and cause substances of sick house syndrome. ₃ ) As the organic substance, hydrophobic toluene (C ₆ H ₅ CH ₃ ), formaldehyde (HCHO), and the like can be considered, but AMC in the present invention is not limited to these, and is large in molecular level. That's fine. For example, dioxins are also subject to removal.

  As the material water for the active cluster water, ultrapure water is most suitable, but anode water and cathode water of NaCl electrolysis water can be used, and aerosolized by the method shown in FIGS. . Note that the aerosolization method is merely an example, and is not limited to this method, and there are various other methods. Recently, a method for crushing ultrapure water using carbon nanotubes has been devised.

  FIG. 2A shows an apparatus for generating cluster water used in the present invention using the Leonard effect theory, and FIG. 2B shows a molecular structure of the generated cluster water. In this apparatus (a), various kinds of water such as ultrapure water are monomolecularized by powerful ultrasonic vibration, and the generated aerosol particles collide with each other by relative movement and adhere to form larger particles. The cluster water is generated using the characteristics. As shown in (b), the generated water molecules are considered to form cluster water in which about 2 to 20 water molecules are aggregated in a cage or linear chain, mainly by hydrogen bonds. It is done. This is because a Coulomb force acts between an oxygen atom having a negative charge in a water molecule due to the electronegativity of the oxygen atom and a hydrogen atom of an adjacent water molecule.

  FIG. 3A shows an apparatus for generating cluster ice having 2 to 7 water molecules, and FIG. 3B shows the molecular structure of the generated cluster ice. In this apparatus (a), ultrapure water is heated under pressure with a boiler or the like, and the generated water vapor is sprayed onto the surface of liquid nitrogen to rapidly cool it, and it is unimolecularly produced as 100% mist ice. Is. This manufacturing method utilizes the characteristic that when pressurized steam is cooled, it condenses to produce an aerosol. The generated water molecules are considered to form approximately 2 to 7 mist-like cluster ice (annular clusters) bonded in a ring shape. In particular, the method or apparatus that uses cluster ice is related to hydrophilicity and hydrophobicity by adsorbing and absorbing AMC in the vacancies of cluster ice, which is composed of five-membered and six-membered rings as shown in (b). Since it can be captured without any problem, it exhibits a very high removal effect.

  The AMC aerosol absorbed and adsorbed on the cluster ice or cluster water immediately aggregates and condenses, forms droplets and deposits on the duct wall to become waste water. Therefore, if it is left as it is, it will re-scatter due to evaporation and affect the removal effect, so it is necessary to immediately discharge it out of the duct 10.

  FIG. 4 is a conceptual diagram for explaining the principle of the scattered contaminant molecule removing method and the apparatus 30 according to the second invention of the present application. This apparatus 30 or method is a hybrid of the scattered pollutant molecule removal method shown in FIG. 1 and the conventional removal method of harmful substances by photocatalytic oxidative decomposition reaction. Note that portions having the same functions as those in FIG.

  The scattering contaminant molecule removing device 30 discharges the space 14 surrounded by the wall surface 18, the cluster water inlet 11 provided on the wall surface 18 for injecting aerosolized cluster water into the space 14, and the condensed and condensed droplets 12. Waste water treatment means 13, a fan 15 that generates a circulating flow in the air in the space, a photocatalytic filter 16 that communicates with the space 14 and allows the air in the space to pass through, and a circulation duct 17 that returns the air after passing through the photocatalytic filter 16 to the space 14 again. Configured.

  In this scattering contaminant molecule removing apparatus 30, active cluster water that has been aerosolized is injected from the cluster water inlet 11 into the space 14 in which AMC floats. The injected active water molecules of cluster water or cluster ice absorb and adsorb AMC, and immediately aggregate or condense to form droplets 12 and adhere to the wall surface 18. Thereafter, the wastewater treatment means 13 removes the droplets 12 from the space 14 and discharges them. The air in the space 14 is circulated by the fan 15 and sent to the photocatalytic filter 16. The air in the space 14 is AMC removed by the photocatalytic filter 16 and then returned to the space 14 again through the circulation duct 17.

  FIG. 5 is a perspective view (a) and a cross-sectional view (b) showing a configuration example of the photocatalytic filter 16. As shown in FIG. 5, the photocatalytic filter 16 includes titanium oxide wire filters 161 arranged on a frame 163 arranged in a column with respect to a gas flow, and a U.S. gap between the titanium oxide wire filters 161 arranged in a column. A plurality of V lamps 162 are arranged in a row. And U. The titanium oxide wire filter 161 is irradiated with ultraviolet rays from the V lamp 162.

The state of the oxidative decomposition reaction of titanium dioxide on the photocatalytic filter 16 will be briefly described with reference to FIG. FIG. 6 is an explanatory view showing the state of the photocatalytic oxidative decomposition reaction. Since titanium dioxide used for the photocatalyst has a band gap of about 3.2 eV, it absorbs ultraviolet rays having a wavelength of 380 nm or less, and the electrons in the valence band rise to the conduction band, resulting in an excited state. Therefore, when titanium dioxide is irradiated with ultraviolet rays in oxygen, a reduction reaction occurs on the surface, and active oxygen such as atomic oxygen (O ⁻ ) and superoxide ions (O ₂ ⁻ ) is generated. On the other hand, holes are generated in the valence band, which oxidizes water or hydroxide ions to generate hydroxy radicals. These function as a filter by decomposing AMC floating.

  The air from which AMC has been removed by passing through the photocatalytic filter 16 is returned again into the space 14 via the circulation duct 17, so that an odorless and clean indoor space can be efficiently created. In the second embodiment, the clustered water injection port 11 for aerosolized active cluster water is provided on the upstream side of the photocatalytic filter 16, but the active cluster water is injected into the gas after passing through the photocatalytic filter 16. It may be configured. That is, the same effect can be obtained whether the oxidative decomposition reaction by the photocatalytic reaction is performed as a pretreatment or as a posttreatment.

  The droplets 12 that have aggregated or condensed and adhered to the wall surface 18 are immediately collected in a tank by a wastewater treatment means 13 using a commercially available water separator, and discharged out of the space. This waste water treatment means 13 is arranged on the space side where the cluster water inlet 11 is provided in order to prevent re-scattering of AMC due to evaporation.

  Moreover, it is known that most of odorous substance molecules are organic matter. Since the scattered pollutant molecule removal method and the apparatus 30 according to the present invention are not limited to hydrophilic inorganic substances as will be described later, it is clear that hydrophobic organic substances also aggregate and condense. In the case of substance molecules, the first and second scattered contaminant molecule removing devices 30 function as deodorizing devices.

In order to demonstrate the effect of the present invention, the experimental results regarding the removal efficiency of various AMCs will be described below. FIG. 7 is a set-up diagram of an evaluation duct testing machine created based on JIS B9901 and JIS B 9927. A TiO ₂ + UV filter unit using titanium dioxide (TiO ₂ ) as the photocatalytic filter 25 (six titanium dioxide catalysts) , UV lamp: one using a wavelength of 254 nm × 18 (15.6 mW / cm ² ).

  The duct testing machine 20 for evaluation has an active cluster water (cluster water or cluster ice) inlet 22 and an AMC inlet 23 used in the present invention in a duct 21, and a fan 24 is provided upstream of the duct 21 to provide air. Is circulated under certain conditions. A photocatalytic filter 25 was provided on the downstream side of the duct 21, a detection tube 26 was provided as a measuring device in the duct 21 after passing through the photocatalytic filter 25, air was extracted by the detection tube method, and the concentration was measured.

The air after passing through the photocatalytic filter 25 is returned again into the duct 21 through the circulation duct 27 and the fan 24. The fan 24 was set so as to circulate air under conditions of a surface wind speed of 0.55 m / S and an air volume of 2.5 CMM. All the experiments were conducted in a clean booth 28 of class 100 equipped with HEPA with an air volume of 40 CMM (m ³ / min) and an external dimension of 2700 × 1800 × 1900 mm.

First, after measuring the background (represented by BG) when only the TiO ₂ + UV filter unit is used, SO ₂ and NH ₃ as inorganic substances, C ₆ H ₅ CH ₃ and HCHO as organic substances in the duct 21 are measured. A total of four types of AMC are injected from the AMC inlet 23 to a concentration of 100 ppm. In order to first verify the photocatalytic oxidative decomposition reaction using the TiO ₂ + UV filter unit, the concentration on the downstream side is measured based on JACA guideline No. 35-2000 to determine the removal rate.

  Next, the photocatalyst filter was removed, and aerosolized cluster water and cluster ice were separately injected from the active cluster water inlet 22, and the concentration of AMC in the duct 21 was measured to determine the removal rate.

Finally, the clustered water and the cluster ice which were aerosolized from the active cluster water injection port 22 are separately injected into the upstream side of the TiO ₂ + UV filter unit as a hybrid with the photocatalyst, and the concentration of AMC in the duct 21 is respectively set. Each was measured to determine the removal rate. The results are shown in the graphs of FIGS. For reference, the conventional removal rate in the water scrubber method is also shown.

The removal effect when selecting SO ₂ is inorganic as AMC shown in FIG. 8. FIG. 8 shows that the best results were obtained when the photocatalyst and cluster ice were hybridized. In the case of the background using only the photocatalyst filter 25 (hereinafter referred to as a graph shown by BG), the removal efficiency is about 20% in 2 hours, compared to the cluster ice without using the photocatalyst filter 25. Alternatively, when only cluster water was used, approximately 80% to 90% of AMC could be removed in about 40 minutes from the start of the experiment.

When the cluster ice and the photocatalytic oxidative decomposition reaction were hybridized, the reaction rate could be further increased, and almost 100% of AMC could be removed in about 30 minutes from the start of the experiment. As a consideration, in cluster ice, water molecules form 2 to 7 circular clusters, and it is easy to hydrogen bond with SO _{2 around the} pores, and the temperature is low, so SO ₂ can be captured quickly. It seems that it was because it was. In addition, when the photocatalytic filter 25 and cluster water were hybridized, good results were obtained in substantially the same manner. In any case, it can be seen that the removal rate is much higher than that of the conventional water scrubber method.

FIG. 9 shows the removal effect when ammonia (NH ₃ ), which is an inorganic substance, is selected as AMC. B. Using only the photocatalytic filter 25 In the case of G, the removal efficiency was 20% in 120 minutes as in the case of SO ₂ , and in the case of cluster ice alone, almost 90% of AMC was removed in about 120 minutes from the start of the experiment. . The poor removal efficiency than SO ₂ in the removal of NH ₃ is, NH ₃ is believed to be due to the high vapor pressure as compared to SO _2, less likely to be absorbed efficiently into the aerosol of the liquid phase . Moreover, in the removal of NH _3, the removal efficiency was higher when cluster ice alone was used than when it was hybridized. The reason for this is thought to be that the reducing power of ammonia water formed by aggregation and condensation hindered the oxidative decomposition reaction of the photocatalyst. In any case, the removal rate is extremely high compared to the water scrubber method.

FIG. 10 shows the removal effect when formaldehyde (HCHO), which is an organic substance, is selected as AMC. In this case as well, a hybrid of photocatalyst and cluster ice showed the best results. B. Using only the photocatalytic filter 25 In the case of G, the removal efficiency was 20% in 120 minutes as in the case of SO ₂ , but in the case of cluster ice alone, the photocatalyst was hybridized almost 80% in about 120 minutes from the start of the experiment. In some cases, over 80% of AMC was removed in about 120 minutes from the start of the experiment.

The reason for this is the same as in the case of the inorganic substances SO ₂ and NH ₃ , and 2 to 7 fine active water molecules having a low temperature in the duct quickly capture HCHO and form gaps (holes) between the clusters. It is thought that it entered and was removed. However, as shown in FIG. 10, in the case of HCHO, AMC was rapidly captured in the first 10 minutes, and the subsequent absorption and adsorption tended to be slow. The reason for this is thought to be that the state of being retained in the aerosol becomes unstable because HCHO is difficult to ionize. In the case of cluster water, the hybrid method with the photocatalyst had no significant effect.

The removal effect of toluene (C ₆ H ₅ CH ₃ ), which is a malodorous substance as AMC, is shown in FIG. In this case as well, the best results were obtained when the photocatalyst and cluster ice were hybridized in the same manner as other AMCs. B. Using conventional scrubber method or photocatalytic filter 25 only In the case of G, the removal efficiency was 20% in 120 minutes as in the case of SO ₂ , but in the case of cluster ice alone, approximately 95% in about 120 minutes from the start of the experiment, when the photocatalyst was hybridized In almost 120 minutes from the start of the experiment, almost 100% of AMC was removed. In the case of cluster water, good results are obtained in accordance with it.

The feature of the removal effect of AMC is that it is rapidly adsorbed and absorbed by cluster ice in the first 20 minutes. Unlike HCHO, the same effect as in the case of an inorganic substance was shown. The reason is the same as in the case of the inorganic substances SO ₂ and NH ₃ , and it is considered that toluene molecules quickly entered the vacancies of the low-temperature cyclic cluster and absorbed and adsorbed by hydrogen bonds.

At present, toluene (C ₆ H ₅ CH ₃ ) has been subjected to qualitative quantitative analysis by GCMS, and the following results have been obtained. That is, in the method of hybridizing photocatalytic oxidative decomposition reaction and cluster ice, the removal experiment was performed by injecting 10 μg / m ³ of AMC as an initial value. After 10 minutes, the decrease was 0.254 μg / m ³ (removal rate 97 .46%), and decreased to 0.096 μg / m ³ after 60 minutes (removal rate 99.04%).

  From the above results, it can be seen that even in the same water aerosol, the AMC removal rate varies depending on the generation principle, the form and size of water molecules. Even in cluster water with a chain structure of 7 to 20 active water molecules, AMC adsorbs and absorbs in the gaps of the chain structure and shows a high removal rate, but in the case of cluster ice, it becomes a cyclic structure. , AMC can be effectively adsorbed and absorbed in five-membered and six-membered cluster ice vacancies to capture AMC regardless of hydrophilicity (aldehyde group) or hydrophobicity (methyl group). Therefore, it was confirmed that the removal rate was good in all cases.

  In order to clarify the difference in effect between the present invention and the water scrubber method, FIGS. 8 to 11 show the effect when the photocatalyst and the water scrubber method are hybridized. In either case, the difference in effect can be clearly confirmed.

  Although the experimental results for four types of AMC for confirming the effect of the present invention were shown, the present invention is not limited to the AMC exemplified substances shown in the graph, and other gaseous scattering pollutant molecules, odorous substance molecules It is also extremely effective. In particular, dioxins and the like are also removed. Further, the production method of the active cluster water is not limited to the one shown in this embodiment. Of course, various changes can be made without departing from the scope of the present invention.

  The present invention can be applied to indoor air conditioning equipment as a deodorizing device. By releasing the air in the circulation duct of the scattered contaminant molecule removing apparatus into the room, the room can be converted into odorless and clean air.

It is a conceptual diagram for demonstrating the principle of the scattering pollutant molecule removal method concerning this invention, and its apparatus. (A) shows the apparatus which produces | generates the cluster water used for this invention using the Leonard effect theory. (B) shows the molecular structure of the generated cluster water. (A) is an apparatus for generating cluster ice having 2 to 7 water molecules. (B) shows the molecular structure of the generated cluster ice. It is a conceptual diagram for demonstrating the principle of the scattering pollutant molecule removal method concerning the 2nd invention of this application, and its apparatus. It is the perspective view (a) and sectional drawing (b) which show the structural example of a photocatalyst filter. It is explanatory drawing which shows the mode of the oxidative decomposition reaction by titanium dioxide. It is a setup figure of the duct testing machine for evaluation. Is a graph showing the effect of removing sulfur dioxide are inorganic (SO _2). It is a graph showing the effect of removing ammonia is inorganic (NH _3). It is a graph which shows the removal effect of formaldehyde (HCHO) which is an organic substance. It is a graph showing the effect of removing toluene _{(C 6} H 5 CH ₃₎ organic.

Explanation of symbols

10, 21 Duct 11 Cluster water inlet 12 Droplet 13 Waste water treatment means 15, 24 Fan 16, 25 Photocatalytic filter 17, 27 Circulating duct 20 Duct test machine for evaluation 22 Active cluster water inlet 23 AMC inlet 26 Detector tube 28 Clean booth 30 Spattering contaminant molecular removal device 161 Titanium oxide wire filter 162 V lamp

Claims (7)

  A scattering pollutant molecule removal method for removing the scattered pollutant molecules from the gas by aerosolizing the active cluster water and aggregating or condensing the active cluster water using the scattered pollutant molecules in the gas as a nucleus.   2. The method for removing scattered pollutant molecules according to claim 1, wherein the active cluster water is aggregated water in which 2 to 20 water molecules are bonded (hereinafter simply referred to as cluster water).   2. The active cluster water is aggregated crystal water (hereinafter referred to as cluster ice) formed by quenching water vapor and having 2 to 7 water molecules bonded mainly by hydrogen bonds. 4. The method for removing scattered pollutant molecules described in 1.   Passing the gas through a contaminant removal filter using a photocatalytic oxidative decomposition reaction before or after agglomerating or condensing the active cluster water with the scattered contaminant molecules in the gas as a nucleus The method for removing scattered pollutant molecules according to any one of claims 1 to 3. Cluster supply means for aerosolizing and spraying the cluster water or the cluster ice in a sealed space;
Waste water treatment means for discarding droplets condensed or condensed with the scattered pollutant molecules in the gas in the space as nuclei, and out of the space;
Scattering pollutant molecule removal device consisting of Cluster supply means for aerosolizing and spraying the cluster water or the cluster ice in a sealed space;
Waste water treatment means for discarding droplets condensed or condensed with the scattered pollutant molecules in the gas in the space as nuclei, and out of the space;
A photocatalytic filter that irradiates the photocatalytic substance with ultraviolet light to cause an oxidative decomposition reaction;
A scattering pollutant molecule removal apparatus comprising:
An apparatus for removing scattered contaminant molecules, wherein the gas in the space is circulated through the photocatalytic filter.   The deodorizing apparatus according to claim 5 or 6, wherein the scattering contaminant molecule is an odorant molecule.

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