JP2001254421A - Deodorizor for toilet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adsorbent quickly adsorbing and deodorizing an unpleasant offensive smell component in a toile, regeneratable by heating for eliminating maintenance such as the replacement. SOLUTION: A first adsorbent 23 for carrying a metallic oxide including at least one kind of manganese, copper and cobalt is arranged on the upstream side in a ventilation flue. A second adsorbent 24 for carrying an adsorbent including at least one kind of zeolite, silica and alumina on a base material generating heat by energizing is arranged on the downstream side. The second adsorbent is regenerated by heating by energizing a base material according to an adsorbing situation of the adsorbent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a deodorizer for a toilet.

[0002]

2. Description of the Related Art A conventional deodorizing spray has been used for deodorizing toilets when immediate deodorizing effect is required. In addition, there are also deodorizers for toilets, which are of an adsorption type or an oxidative decomposition type using ozone, in some cases.

[0003]

However, deodorant sprays are mainly of the masking type, which hides the smell by smell, and there is a problem of taste, which is different from the purpose of deodorization of removing the original smell. Was. In addition, they were basically disposable and required maintenance such as replacement.

On the other hand, in both the adsorption method and the oxidative decomposition method, the performance is insufficient in terms of immediate effect, and many of the adsorption methods require maintenance.

Therefore, the present inventors have developed a porous adsorbent in which at least one of zeolite, silica and alumina is supported in addition to a metal oxide containing at least one of manganese, copper and cobalt in a ventilation path. Has been proposed to quickly adsorb and deodorize unpleasant odor components in the toilet. However, in order to eliminate maintenance such as replacement, it is necessary to provide a heating means for heating and regenerating the adsorbent separately from the adsorbent. For this reason,
Since the scale becomes large and the heating is indirectly performed, there is a problem that it takes time and energy to regenerate the adsorbent.

[0006]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and has a metal oxide containing at least one of manganese, copper and cobalt supported on the upstream side in a ventilation path. A first adsorbent is provided, and on the downstream side, a second adsorbent in which an adsorbent containing at least one kind of zeolite, silica, and alumina is supported on a substrate capable of generating heat by energization is provided. By energizing the base material according to the state of adsorption, the second adsorbent that needs to be regenerated can be quickly heated and regenerated. Further, the present invention does not require a separately arranged heating means, and provides a compact deodorizer for toilets in terms of scale.

[0007]

According to the first aspect of the present invention, hydrogen sulfide, which is a representative odor of toilets, is chemically adsorbed by the action of the first adsorbent supporting the metal oxide in the ventilation passage. In addition, methyl mercaptan is converted into dimethyl disulfide by the catalytic action of a metal oxide at ordinary temperature. On the other hand, ammonia and dimethyl disulfide are physically adsorbed by the action of the inorganic adsorbent disposed downstream of the first adsorbent, and the odor can be removed by the action of these adsorbents. Regeneration is generally difficult in chemisorption, but the presence of adsorption sites promotes adsorption regardless of concentration, so the adsorption capacity is sufficiently large and the need for regeneration is small. On the other hand, in physical adsorption, the adsorption capacity also changes depending on the odor concentration. Therefore, it is necessary to regenerate a small adsorption capacity at a concentration of the actual odor level. Here, in the present invention, since the base material of the second adsorbent that needs to be regenerated is a base material that can generate heat by energization, it exhibits a rapid temperature-rise characteristic and can be quickly desorbed and regenerated. In addition, since the base material itself is a heating element,
There is no need to separately provide a heating means such as a heater, and a compact toilet deodorizer can be provided.

According to the second aspect of the present invention, the adsorbent in the ventilation passage is an adsorbent in which a metal oxide and an inorganic adsorbent are supported on a substrate capable of generating heat by energization.
Similarly, hydrogen sulfide is chemically adsorbed, methyl mercaptan is converted into dimethyl disulfide, and then physically adsorbed, and also odor components such as ammonia are physically adsorbed. Here, the odor components physically adsorbed to the adsorbent can be quickly heated and regenerated by energizing the base material, and by using a single adsorbent, a more compact toilet deodorizer can be used. can do.

According to a third aspect of the present invention, the heat-producing base material is formed by winding a corrugated expanded metal and an insulated heat-resistant flat plate into a corrugated shape, and providing electrode terminals at both ends of the expanded metal. By using a base material, the electrical resistance required for heat generation can be secured, and in addition to keeping the ventilation resistance low, a large effective surface area can be secured,
In addition, since the ventilation is appropriately disturbed, the ventilation can be effectively contacted with the adsorbent, and a good base material can be obtained as an adsorption carrier that generates heat when energized.

According to a fourth aspect of the present invention, the heating temperature of the adsorbent by applying an electric current is between 100 ° C. and 400 ° C., so that the odor component can be quickly desorbed and regenerated without deteriorating the adsorbent. Becomes possible.

According to a fifth aspect of the present invention, a purifying means for purifying desorbed gas is provided substantially above the adsorbent to purify desorbed odor components during regeneration and then release the deodorized components to the room. Is always deodorized even during desorption, and can be a clean space.

According to a sixth aspect of the present invention, the purifying means for purifying the desorbed gas comprises a catalytic body containing, for example, Pt, Pd and the like, and a heating means such as a heater for activating the catalytic body. It can be highly deodorized and purified.

[0013] According to a seventh aspect of the present invention, the base of the catalyst body is a metal base capable of generating heat by energization.
The temperature can be quickly raised to a temperature range having a catalytic action as compared with indirect heating, and deodorization and purification at the time of regeneration can be extremely effectively performed.

[0014]

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to FIG.

In FIG. 1, 1 is a Western-style toilet bowl, 2 is a toilet seat,
Reference numeral 3 denotes a lid, 4 denotes an intake port of a toilet deodorizer, and 5 denotes a connection part, which is formed of a hollow hose here. Reference numeral 6 denotes a toilet deodorizer main body, and the arrows in the figure show the flow of air during use, and the air containing odor sucked from the intake port 4 is:
After passing through the connection part 5, it flows into the body 6 of the deodorizer for toilet, and after being adsorbed and deodorized, exhausted.

FIG. 2 is a view showing the configuration of the toilet deodorizer main body of the present embodiment. Reference numeral 21 denotes an air intake unit composed of a fan motor. Reference numeral 22 denotes a housing that constitutes the whole;
It constitutes a ventilation path. 23 is a first adsorbent, 24 is a second adsorbent, and the arrows in the figure indicate the flow of ventilation.

The upstream side 23 in the ventilation path is a first adsorbent, and is a cylindrical body having a diameter of 100 mm and a thickness of 50 mm, and is formed of a ceramic body formed of ceramic having 200 cells per square inch. It is a carrier. A composite oxide of manganese, copper, and cobalt (Dipiroxide # 7810 Dainichi Seika) is supported on the honeycomb body at a density of 0.10 g / cc using 2% of colloidal silica (Snowtex OUP Nissan Chemical) as a binder. Is used as the first adsorbent.

A downstream side 24 is a second adsorbent, which is made of expanded metal having a length of 5 mm and a height of 2 mm in the short direction, which is subjected to corrugation of 5 mm in height, and an insulating heat-resistant plate made of ceramic fiber. Wound each other, diameter 100m
A cylindrical corrugate having a thickness of 50 mm and a thickness of 50 mm is used as a carrier. On this carrier, a hydrophobic synthetic zeolite having a silica / alumina ratio of 5 or more (Absentz 3
000 Union (Showa) at a density of 0.10 g / cc is used as the second adsorbent 24.

FIG. 3 shows the configuration of the second adsorbent.
As shown in FIG. 3, the electrode terminals are attached at the beginning and end of winding. Here, the expanded metal is made of Fe—having a high specific resistance so that it can generate heat when a voltage is applied.
Using a Cr-Al heat-resistant steel (NTK, No. 4L, Nippon Metal Industry) expanded and connecting the electrode terminals at both ends to the power supply voltage, the second adsorbent itself generates heat. ing.

In the metal composite oxide supported on the first adsorbent, hydrogen sulfide, which is a sulfide, is chemically adsorbed, and methyl mercaptan is converted into dimethyl disulfide by a catalytic action. The hydrophobic synthetic zeolite supported on the second adsorbent physically adsorbs odor components such as ammonia in addition to converted dimethyl disulfide.

Since the hydrogen sulfide adsorbed on the first adsorbent is a chemical adsorption, if the adsorption site exists, the adsorption is promoted regardless of the concentration. Considering the amount of generated hydrogen sulfide, maintenance such as replacement is practically unnecessary.

Since dimethyl disulfide and ammonia adsorbed on the second adsorbent are physical adsorptions, their adsorption capacities change depending on their concentrations, and even if the amount carried is increased as much as possible, even if the amount of odors is increased as much as possible, the actual amount of At the concentration level, a regeneration operation is required to reach the adsorption capacity in several days to several tens of days.

Here, if a voltage is applied between the electrode terminals,
Since the second adsorbent itself generates heat, physically adsorbed odor components such as dimethyl disulfide and ammonia are heated and desorbed very quickly and efficiently as compared with indirect heating.

Using the above-mentioned toilet deodorizer main body, the deodorizing performance was examined.

Assuming a toilet, the intake air volume is fixed at 0.2 m ³ / min without a feeling of cool air, and a mixed odor of 50 ppm each of ammonia, hydrogen sulfide and methyl mercaptan is passed as an odor gas at the time of measurement of the removal rate, and deodorization is performed. The concentration after 10 minutes of ventilation was measured on the inflow side and the discharge side of the apparatus, and the one-pass removal rate was determined for each. As a result, the one-pass removal rate was 99.9% or more for all odorous gases.

Next, an evaluation test of the desorption / reproduction performance was performed. In the same manner as above, a mixed odor of 50 ppm each of ammonia, hydrogen sulfide, and methyl mercaptan was passed for 30 minutes, and then the second adsorbent was energized, and the center temperature of the second adsorbent 23 was controlled to 250 ° C. The concentration of ammonia was measured at the outlet of the deodorizer. The state of desorption of ammonia is shown in FIG.

As a comparative experiment, in the same manner as the first adsorbent, the second adsorbent supported the same amount of hydrophobic synthetic zeolite on a support made of ceramic honeycomb, and further arranged a heater below the same. Similarly, the desorption status was examined. This is shown in FIG.

In both cases (a) and (b) of FIG. 4, some of the desorbed ammonia is oxidatively decomposed by the catalytic action of the metal oxide of the first adsorbent, but not completely. In both cases, ammonia was detected.

In comparison between (a) and (b) in FIG. 4, (b) is 30 minutes or more in comparison with (a) of the present invention in which desorption is completed within 10 minutes. The present invention indicates that the desorption regeneration is completed very quickly in the present invention.

Thus, manganese,
A substrate capable of efficiently removing malodorous components in toilets and generating heat by applying electricity to adsorbents that need to be regenerated by the adsorption of adsorbents supporting copper, cobalt composite metal oxides, and hydrophobic zeolite By using, desorption and regeneration are performed more quickly than indirect heating.

Here, a composite oxide of manganese, copper and cobalt and a hydrophobic zeolite were used.
Even a single metal species such as copper oxide has an effect on sulfides, and silica and alumina are also effective on odors such as ammonia.

Embodiment 2 Hereinafter, a second embodiment of the present invention will be described with reference to FIG.

FIG. 5 is a view showing the configuration of the toilet deodorizer main body of this embodiment. Reference numerals 21 and 22 denote the same parts as in FIG.
Reference numeral 1 denotes an adsorbent, which is the same as the second adsorbent of Example 1, and is made of expanded metal having a length of 5 mm and a height of 2 mm in the short direction, which is subjected to a wave machining of 5 mm in height, and a ceramic fiber. The insulation heat-resistant plate is wound around each other, and a cylindrical corrugated shape having a diameter of 100 mm and a thickness of 100 mm is used as a carrier. When an electrode terminal (not shown) is connected to a power supply voltage, heat is generated. .

A manganese, copper, and cobalt composite oxide (Dipoxide # 7810 Dainichi Seika) was added to this carrier,
A hydrophobic synthetic zeolite having a silica / alumina ratio of 5 or more (Absents 3000 Union Showa) is mixed at a ratio of 1: 1 and similarly, a colloidal silica (Snowtex OUP Nissan Chemical) 2 having a density of 0.10 g / cc is mixed. % Is used as a binder and the supported one is used as an adsorbent 51.

The adsorption / desorption mechanism is the same as in Example 1. The metal composite oxide chemically adsorbs hydrogen sulfide and converts methyl mercaptan into dimethyl disulfide by a catalytic action. Hydrophobic synthetic zeolites physically adsorb odor components such as ammonia in addition to converted dimethyl disulfide.In chemical adsorption, maintenance such as replacement is practically unnecessary. The regenerated operation is required for the obtained component because it reaches the adsorption capacity in several days to several tens of days.

Here, if a voltage is applied between the electrode terminals,
Physically adsorbed odor components such as dimethyl disulfide and ammonia are desorbed by heating, and chemically adsorbed hydrogen sulfide is not desorbed because the adsorption becomes stronger.

Using the above deodorizer for toilet, the deodorizing performance was examined in the same manner as in Example 1.

Assuming a toilet, the intake air flow rate is fixed at 0.2 m ³ / min without a feeling of cool air, and a mixed odor of 50 ppm each of ammonia, hydrogen sulfide, and methyl mercaptan is passed as an odor gas at the time of measurement of the removal rate. The concentration after 10 minutes of ventilation was measured on the inflow side and the discharge side of the apparatus, and the one-pass removal rate was determined for each of them.

Next, an evaluation test of the desorption / reproduction performance was performed. In the same manner as above, a mixed odor of 50 ppm each of ammonia, hydrogen sulfide, and methyl mercaptan was passed for 30 minutes, and then the second adsorbent was energized, and the center temperature of the second adsorbent 23 was controlled to 250 ° C. The concentration of ammonia was measured at the outlet of the deodorizer. The state of desorption of ammonia is shown in FIG. The structure of the first embodiment is shown in FIG.

Although the amount of desorption appears to be smaller in (a) than in (b) in FIG. 6, it can be considered that the desorption is completed in 10 minutes in both cases. In this embodiment (a), the adsorbent itself carrying the metal oxide generates heat, and the temperature becomes higher than that of the indirect heating of the first embodiment. It is shown that the detection amount is smaller than that shown in (b) because of the increase, and the apparent desorption amount is slightly smaller.

As described above, even when the two-piece adsorbent in Example 1 is used as one piece, the same adsorption / desorption performance is exhibited.
Furthermore, it is possible to configure a toilet deodorizer with a simple configuration.

In Examples 1 and 2, a heat-generating base material was formed by winding a corrugated expanded metal and an insulating heat-resistant flat plate around each other to form a corrugated shape, and providing electrode terminals at both ends of the expanded metal. However, by adopting this configuration, the electric resistance required for heat generation can be secured, and in addition to keeping the ventilation resistance low, a large effective surface area can be secured and the ventilation is appropriately disturbed.
The adsorbent and the ventilation can be in effective contact with each other, and can be a good base material for an adsorbent carrier that generates heat when energized.

(Experimental Example 1) Next, an experimental example showing the effect of the fourth aspect of the present invention will be described.

An evaluation test of the desorption performance was performed using the deodorizer body used in Example 2. In the same manner as described above, a mixed odor of 50 ppm each of ammonia, hydrogen sulfide, and methyl mercaptan was passed for 30 minutes, and thereafter, the adsorbent 51 was energized, and the concentration of ammonia was measured at the outlet of the deodorizer. Further, the center temperature of the adsorbent 51 was controlled from 50 ° C. to 500 ° C., and the ammonia concentration was measured. FIG. 7 shows the state of desorption of ammonia.

From FIG. 7, it is hardly desorbed at 50 ° C.
It shows that 100 ° C. or higher is required for desorption. Also,
At 500 ° C, the desorption time is slightly shortened,
The graph shows that the graph almost overlaps with the temperature of 400 ° C.
Even from the above, it can be seen that the desorption efficiency does not increase much.

The adsorbent 51 was placed in an electric furnace at a constant temperature of 400.degree. C. and 500.degree. C., and the one-pass removal rate after 1000 hours was examined. At 400 ° C., the removal rate of each odor gas is 9
At 9.9%, at 500 ° C., ammonia maintained 99.9%, while hydrogen sulfide and methyl mercaptan dropped to 99.0%. This is 500 ° C
This indicates that the surface properties of the metal oxide itself have been deteriorated by heat due to long-term exposure to high temperatures.

From the above, regarding the regeneration temperature of the adsorbent, 1
By setting the temperature in the range of 00 ° C. to 400 ° C., the regeneration can be performed without causing thermal deterioration of the adsorbent and without adding extra energy.

(Embodiment 3) Next, another embodiment of the present invention will be described with reference to FIG.

In FIG. 8, reference numerals 21, 22, and 51 are the same as those in FIG. Reference numeral 81 denotes a purifying means disposed above the adsorbent 51, and is constituted by a catalyst for oxidatively decomposing the deodorized odor component. Similar to the adsorbent 51, a heat-resistant steel of Fe—Cr—Al having a high specific resistance (NT)
K No. 4L Nippon Metal Industry), height 5mm
An expanded metal subjected to corrugation is prepared to form a catalyst carrier, and an undercoat layer containing alumina as a main component and a catalyst layer made of Pt and Pd are sequentially formed to form a catalyst body. Electrode terminals (not shown) are provided at both ends of the expanded metal, and when electricity is supplied between the two terminals, heat is generated to activate the catalyst.

In order to show the effect of this embodiment, an evaluation test of the desorption / reproduction performance was performed. Ammonia, hydrogen sulfide and methyl mercaptan were each 50 ppm as in Examples 1 and 2.
Was passed through the adsorbent 51 for 30 minutes, and then the adsorbent 51 was energized to control the center temperature of the adsorbent 51 to 400 ° C., and the concentration of ammonia was measured at the outlet of the deodorizer.
FIG. 9 shows the results.

In FIG. 9, when the catalyst 81 is also energized and the central temperature of the catalyst is controlled to 400 ° C. (a), when the catalyst 81 is not energized and only heat is received from the adsorbent 51. At this time, the center temperature of the catalyst body 81 gradually approached 400 ° C. after 10 minutes. The result when there is no catalyst body 81 is shown in FIG.

In (a) when the catalyst 81 was energized, no ammonia was detected, indicating good oxidative decomposition characteristics. In the case (b) in which the catalyst 81 is not energized, it takes more time to become catalytically active than in the case (a) due to indirect heating, and is slightly detected only during the initial stage of regeneration. This shows that purification was greatly performed as compared with (c) without 81.

As described above, by disposing the purifying means above the adsorbent 51, the deodorized odor component is oxidized and decomposed, and is always deodorized at the time of regeneration, thereby providing a clean space.

In particular, by using a metal base material capable of generating heat by energization as the base material of the catalyst body, it is possible to quickly raise the temperature to a temperature range having a catalytic action as compared with indirect heating. The deodorization and purification at the time can be performed very effectively.

Here, an example in which a heat-generating adsorbent 51 is used as a heating means for heating the catalyst and an example in which a catalyst using a heat-generating metal base material are used are shown. Even if a separate means is provided and the heating means is controlled so as to have catalytic activity in accordance with the regeneration timing of the adsorbent, the same effect can be obtained.

[0056]

According to the first aspect of the present invention, hydrogen sulfide, which is a representative odor of the toilet, is reduced by the action of the first adsorbent supporting the metal oxide disposed on the upstream side in the ventilation path. Methyl mercaptan is converted to dimethyl disulfide by chemisorption and catalysis of metal oxides at room temperature. On the other hand, ammonia and dimethyl disulfide are physically adsorbed by the action of the inorganic adsorbent disposed on the downstream side, and the odor can be removed by the action of these adsorbents. Regeneration is generally difficult in chemisorption, but the presence of adsorption sites promotes adsorption regardless of concentration, so the adsorption capacity is sufficiently large and the need for regeneration is small. On the other hand, in physical adsorption, the adsorption capacity also changes depending on the odor concentration. Therefore, it is necessary to regenerate a small adsorption capacity at a concentration of the actual odor level. Here, in the present invention, since the base material of the second adsorbent that needs to be regenerated is a base material that can generate heat by energization, it exhibits a rapid temperature-rise characteristic and can be quickly desorbed and regenerated. Further, since the base material itself is used as the heating element, there is no need to separately provide a heating means such as a heater, and a compact toilet deodorizer can be provided.

According to the second aspect of the present invention, the adsorbent in the ventilation passage is an adsorbent in which a metal oxide and an inorganic adsorbent are supported on a base material capable of generating heat by energization.
Similarly, hydrogen sulfide is chemically adsorbed, methyl mercaptan is converted into dimethyl disulfide, and then physically adsorbed, and also odor components such as ammonia are physically adsorbed. Here, the odor components physically adsorbed to the adsorbent can be quickly heated and regenerated by energizing the base material, and by using a single adsorbent, a more compact toilet deodorizer can be used. can do.

According to the third aspect of the present invention, the heat-producing base material is formed by winding an corrugated expanded metal and an insulating and heat-resistant flat plate into a corrugated shape, and forming electrode terminals on both ends of the expanded metal. By providing the base material provided, the electric resistance required for heat generation can be secured, and in addition to keeping the ventilation resistance low, a large effective surface area can be secured, and the ventilation is appropriately disturbed. Can be effectively contacted, and can be a good base material for an adsorption carrier that generates heat when energized.

According to a fourth aspect of the present invention, the heating temperature of the adsorbent by applying an electric current is between 100 ° C. and 400 ° C., so that the odor component can be quickly desorbed and regenerated without deteriorating the adsorbent. Becomes possible.

According to the fifth aspect of the present invention, since a purifying means for purifying desorbed gas is provided substantially above the adsorbent, the deodorized odor component at the time of regeneration is purified and released to the room. Is always deodorized even during desorption, and can be a clean space.

According to the sixth aspect of the present invention, the purifying means for purifying the desorbed gas is made up of a catalytic body containing, for example, Pt, Pd and the like, and a heating means such as a heater for activating the catalytic body. It can be highly deodorized and purified.

According to a seventh aspect of the present invention, the base of the catalyst body is a metal base capable of generating heat by energization.
The temperature can be quickly raised to a temperature range having a catalytic action as compared with indirect heating, and deodorization and purification at the time of regeneration can be extremely effectively performed.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing the configuration of a toilet deodorizer according to an embodiment of the present invention.

FIG. 2 is a configuration diagram illustrating a configuration of a toilet deodorizer main body according to the first embodiment of the present invention.

FIG. 3 is a configuration diagram showing a configuration of an adsorbent used in the toilet deodorizer according to the first embodiment of the present invention.

FIG. 4 is an experimental characteristic diagram showing the effect of the first embodiment of the present invention.

FIG. 5 is a configuration diagram illustrating a configuration of a toilet deodorizer main body according to a second embodiment of the present invention.

FIG. 6 is an experimental characteristic diagram showing the effect of the second embodiment of the present invention.

FIG. 7 is an experimental characteristic diagram showing the effect of Experimental Example 1 of the present invention.

FIG. 8 is a configuration diagram illustrating a configuration of a toilet deodorizer main body according to a third embodiment of the present invention.

FIG. 9 is an experimental characteristic diagram showing the effect of the third embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 4 intake port 6 toilet deodorizer main body 21 intake means 23 first adsorbent 24 second adsorbent 81 purification means

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A61L 9/16 A61L 9/16 D B01J 20/10 B01J 20/10 C (72) Inventor Kunikazu Kuchino Osaka 1006 Kadoma, Kadoma Matsushita Electric Industrial Co., Ltd. (72) Inventor Yoshifumi Moriya 1006 Kadoma, Kadoma, Osaka Prefecture F-term (reference) in Sangyo Co., Ltd. AA27A AA27B AA61A AA61B AA72C BA07 BA42 CA02 CA24 CA25 CA29 DA03 FA28 GA02 GA32

Claims (7)

[Claims] 1. An air inlet connected to a toilet, an air passage connected from the air inlet to air intake means, and a metal oxide containing at least one of manganese, copper, and cobalt provided in the air passage. The first adsorbent carried, the zeolite provided on the downstream side of the first adsorbent, an adsorbent containing at least one of silica and alumina, and a second adsorbent carried on a substrate capable of generating heat by energization. A deodorizer for a toilet, comprising: a second adsorbent; and energizing a base material of the second adsorbent to heat and regenerate the second adsorbent. 2. An air inlet connected to a toilet, an air passage connected from the air inlet to an air intake means, and an adsorbent in the air passage is a metal oxide containing at least one of manganese, copper, and cobalt. An adsorbent containing at least one of zeolite, silica, and alumina in addition to a substance, and an adsorbent supported on a substrate capable of generating heat by energization, and heating and regenerating the adsorbent by energizing the substrate. Deodorizer for toilet. 3. The base material according to claim 1, wherein the expanded metal and the insulating heat-resistant flat plate which have been subjected to corrugation are wound around each other and formed into a corrugated shape, and electrode terminals are provided at both ends of the expanded metal. A deodorizer for toilets as described in. 4. The heating and regeneration temperature of the adsorbent by energization is 10
The toilet deodorizer according to any one of claims 1 to 3, wherein the temperature is between 0 ° C and 400 ° C. 5. The toilet deodorizer according to claim 1, wherein a purifying means for purifying desorbed gas is provided substantially above the adsorbent. 6. The toilet deodorizer according to claim 5, wherein the purifying means for purifying the desorbed gas comprises a catalyst and a means for heating the catalyst. 7. The toilet deodorizer according to claim 6, wherein the base material of the catalyst body is a metal base material capable of generating heat by energization.