JP2002017838A - Deodorizing device and method for deodorizing treated gas including odor substance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a miniaturized deodorizing device which has a sure deodorizing effect even to a hot and humid gas and unnecessitates a high-pressure power source, and a method for deodorizing treated gas including odor substances. SOLUTION: The deodorizing device 1 is provided with a housing 2, which is provided with a treated gas entrance 31 and a flow-out port 43, two electrodes 5, 6 housed in the housing 2, a conductive filler 7 and a low-conductive or non-conductive water-holding filler 8 which are filled between the two electrodes 5 and 6. The filler 7 and the filler 8 are made from a chlorine corrosion-resistant material and the material 8 carries a water-soluble salt.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing device for removing an odor generated from an odor source.

[0002]

2. Description of the Related Art Conventionally, an anion generator has been used as a deodorizer. As an anion generator,
Generally, a discharge electrode disposed at the center and a cylindrical electrode surrounding the discharge electrode are provided, and a processing gas is passed between the two.

[0003]

Gas containing odors generated from garbage disposers that have recently become widespread and indoor toilets that will become more widespread due to factors such as aging are as follows:
High temperature and high humidity. A conventional deodorizer using an anion generator cannot sufficiently deodorize a high-temperature, high-humidity gas. Furthermore, such an anion generator requires a high-voltage power supply, and also requires power management.
In addition, the device itself becomes expensive. SUMMARY OF THE INVENTION An object of the present invention is to provide a deodorizing apparatus and a method for deodorizing a processing gas containing a malodorous substance, which exhibit a reliable deodorizing effect even for a high-temperature, high-humidity gas, do not require a high-voltage power supply, and can be reduced in size. Things.

[0004]

The above object is achieved by a housing having a processing gas inlet and an outlet, two electrodes housed in the housing, and a processing gas flowing from the inlet. A conductive filler and a low-conductive or non-conductive water-retentive filler filled between the two electrodes so that the conductive filler and the low-conductive or non-conductive water-retentive filler are in contact with each other; Filler is
The water-retentive filler is formed of a chlorine-corrosion-resistant material, and the water-retentive filler is a deodorizer carrying a water-soluble chloride.

[0005] The deodorizing device generates an electrolysis product of a water-soluble chloride from the water-retentive filler by energizing the two electrodes. And it is preferable that the said conductive filler is provided with water retention. Also,
It is preferable that the water-retentive filler contains an aqueous solution of a water-soluble chloride. Further, it is preferable that the conductive filler has water retention and carries a water-soluble chloride. Further, the conductive filler is preferably a conductive porous carbon body or carbon fiber. Preferably, the conductive filler is Bincho charcoal. Also,
The low-conductive or non-conductive water-retaining filler is preferably a non-conductive porous carbon or a porous inorganic material. Further, it is preferable that the two electrodes include a cylindrical first electrode and a rod-shaped second electrode disposed substantially at the center of the cylindrical first electrode. Also,
It is preferable that the deodorizing device includes a DC power supply unit connected to the two electrodes. Further, the DC power supply unit includes:
It is preferable to supply power capable of electrolyzing an aqueous solution of a water-soluble chloride carried by the water-retentive filler. It is preferable that the DC power supply unit has an anode connected to the cylindrical first electrode and a cathode connected to the rod-shaped second electrode. Further, it is preferable that the anode side electrode of the two electrodes is made of a conductive carbon body or a chlorine corrosion-resistant metal. Further, it is preferable that the cathode side electrode is a metal or a conductive carbon body. Preferably, the conductive carbon body is bamboo charcoal. The water-soluble chloride may be at least one selected from sodium chloride, lithium chloride, calcium chloride, iron chloride, manganese chloride, zinc chloride, magnesium chloride, copper chloride, cobalt chloride, and chloroplatinic acid. preferable. Further, it is preferable that the deodorizing device includes a chlorine-based gas adsorbent disposed on the processing gas outlet side. Further, it is preferable that the deodorizing device includes activated carbon or quicklime particles disposed on the processing gas outlet side. And
It is preferable that the deodorizing device is a deodorizing device for high humidity air.

In order to achieve the above object, a processing gas containing a malodorous substance is caused to flow from a processing gas inlet of the deodorizing apparatus, and a water-soluble chloride carried by the water-retentive filler in the deodorizing apparatus. Is supplied with electric power capable of electrolyzing an aqueous solution of water, an electrolysis product of a water-soluble chloride is generated from the water-retaining filler, a chlorine-based gas is generated, and odorous substances in the processing gas are oxidized. This is a method for deodorizing a processing gas containing a malodorous substance which deodorizes the processing gas.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a deodorizing apparatus according to the present invention. FIG. 1 is a front view of an embodiment of the deodorizing device of the present invention. FIG. 2 is a bottom view of the deodorizing device shown in FIG. FIG. 3 is a plan view of the deodorizing device shown in FIG. FIG. 4 is a sectional view of the deodorizing apparatus shown in FIG.

The deodorizing apparatus 1 of the present invention comprises a processing gas inlet 3
1 and a housing 2 having an outlet 43, two electrodes 5 and 6 housed in the housing 2, and two electrodes 5 and
A conductive filler 7 and a low-conductive or non-conductive water-retentive filler 8 filled between them are provided. Conductive filler 7 and low- or non-conductive water-retentive filler 8
Is formed of a chlorine corrosion-resistant material, and the water-retentive filler 8 carries a water-soluble chloride.

Further, according to the method for deodorizing a processing gas containing a malodorous substance of the present invention, a processing gas containing a malodorous substance is introduced from the processing gas inlet 31 of the deodorizing apparatus 1 and the deodorizing apparatus 1 is filled with water retention. A power capable of electrolyzing an aqueous solution of a water-soluble chloride carried by the material 8 is supplied to generate an electrolysis product of a water-soluble chloride from the water-retaining filler 8, thereby oxidizing malodorous substances in the processing gas. Thus, the processing gas is deodorized.

According to the deodorizing apparatus and the deodorizing method of the present invention, the water-retaining filler 8 having low conductivity or non-conductivity is formed by the water contained in the treated gas or the water retained in advance during use. Containing aqueous solution and 2
By applying a predetermined voltage or more between the two electrodes,
Electrolysis occurs on the surface of the water-retentive filler 8 and the conductive filler 7 to generate an electrolysis product (specifically, an oxidizing substance). Oxidizing substances that are electrolysis products, for example,
Active oxygen, chlorine-based substances (specifically, hypochlorous acid gas,
(Chlorine gas, hypochlorite ion, chlorine ion, hydrogen chloride, etc.) are generated. Then, ammonia, trimethylamine, hydrogen sulfide, mercaptan, and VOC (volatile organic compound), which are odor sources in the processing gas, are oxidized by the electrolysis product, and the processing gas is deodorized. In this deodorizing device, a voltage capable of electrolyzing a chloride aqueous solution is applied during use.

[0011] The deodorizing system of the deodorizing apparatus of the present invention is a device for removing an odorous substance caused by an oxidizing substance such as a chlorine-based gas or active oxygen, which is generated from a water-retentive filler by energization between two electrodes. The elimination of malodorous substances due to direct oxidation and the local polarization caused by electrolysis products on the conductive filler surface are due to the continuous extinction due to the adsorption reaction of the malodorous substances to the conductive filler and the depolarization (depolarization, depolarization) reaction .

As shown in FIGS. 1 and 4, the deodorizing apparatus 1 of this embodiment comprises a cylindrical housing 2, a cylindrical first electrode 5 disposed on the inner surface of the housing, and a first electrode 5. A second electrode 6 disposed in the center of the first electrode 5, a conductive filler 7 and a low-conductive or non-conductive water-retaining filler 8 filled between the two electrodes. Further, the deodorizing device 1 includes a power supply unit electrically connected to the first electrode 5 and the second electrode 6. As the power supply unit, a DC power supply is preferable, and the DC power supply is a cylindrical first power supply having a large area.
The electrode 5 is connected so as to function as an anode, and the rod-shaped second electrode 6 functions as a cathode.

In the deodorizing apparatus 1, the first electrode 5 having a cylindrical shape is used.
And the rod-shaped second electrode 6 are parallel to the flow direction of the processing gas, so that the electrodes 5 and 6 do not have a flow resistance of the processing gas and the water-soluble chloride stored between the electrodes. The processing gas can be reliably brought into contact with the water-retentive filler material 8 carrying.

The tubular housing 2 is attached to a tubular housing body 20, a processing gas inlet side member 30 attached to one opening of the housing body 20, and the other opening of the housing body 20. A processing gas outlet side member 40 is provided. Cylindrical housing body 20, processing gas inlet side member 30, and processing gas outlet side member 40
Is preferably formed of a non-conductive chlorine corrosion-resistant material. As the chlorine corrosion-resistant material, a hard or semi-hard synthetic resin can be used. As the hard or semi-hard synthetic resin, polycarbonate, acrylic resin, polyolefin (for example, polyethylene or polypropylene), styrene-based resin (for example, polystyrene), polyvinyl chloride, or the like can be used.

On the inner surface of the tubular housing body 20, a tubular conductor forming an electrical contact 21 for the tubular first electrode 5 is provided, and a terminal 22 of the electrical contact 21 is connected to the housing body. Extends outward from an opening provided on the side surface of the. It is preferable that the electrical contact 21 and the terminal 22 are formed of a chlorine-corrosion-resistant conductive material. As the chlorine-corrosion-resistant conductive material, stainless steel, titanium, platinum, gold, a material obtained by plating platinum or gold on stainless steel or titanium, or a conductive carbon material as described above can be used. As the conductive carbon material, carbon fibers having high conductivity are suitable. As carbon fibers, carbon long fibers are suitable. The size of the cylindrical housing body 20 varies depending on the flow rate of the processing gas, in other words, the gas processing amount, but the inner diameter is preferably about 50 to 200 mm.

The processing gas inlet side member 30 has a cylindrical inlet 31 extending outward and a partition portion 34 having a large number of openings 33, and the center of the partition portion 34 has the second electrode 6. An electrode grip 35 is provided as a recess for accommodating one end. On the inner surface side of the housing main body of the processing gas inlet side member 30, an annular concave portion is formed, and a gas permeable mesh member 12 is disposed, so that the outflow of the conductive filler 7 and the water retaining filler 8 is prevented. Preventing. The processing gas inlet side member 30 is fixed to one end of the housing body 20.

The processing gas outlet side member 40 has a plate-like portion 44 having a number of openings 43 forming an outlet, and the other end of the second electrode 6 projects at the center of the plate-like portion 44. And a cylindrical portion 45 for the same. A cap member 46 is attached to the cylindrical portion 45, and the cap member 46 is provided with a ring-shaped conductor forming an electric contact 47 for the second electrode 6, and a terminal of the electric contact 47 is provided. 48 extends outside from an opening provided on the side surface of the cap member 46. It is preferable that the electrical contact 47 and the terminal 48 are formed of a chlorine-corrosion-resistant conductive material. Stainless steel, titanium,
Platinum, gold, stainless steel or titanium plated with platinum or gold, or the above-described conductive carbon material can be used. As the conductive carbon material, carbon fibers having high conductivity are suitable. As carbon fibers, carbon long fibers are suitable. Then, the processing gas outlet side member 40
An annular concave portion is formed on the inner surface side of the housing body, and a gas-permeable mesh member 13 is arranged to prevent the conductive filler 7 and the water-retentive filler 8 from flowing out.
The processing gas outlet side member 40 is fixed to one end of the housing body 20.

The air-permeable mesh members 12 and 13 are preferably formed of a chlorine-corrosion-resistant non-conductive material, and for example, a mesh made of glass fiber or synthetic fiber can be used. The mesh may be a woven or nonwoven fabric. As synthetic fibers, polyester fibers,
Synthetic fibers such as polyamide fibers such as nylon 6, nylon 66 and nylon 46, and polyolefin fibers such as polyethylene and polypropylene can be used.

The first cylindrical electrode 5 is preferably used as the anode side. By setting the cylindrical electrode 5 on the anode side, the anode has a large area and surrounds the water-retentive filler 8 and the conductive filler 7 to be filled. The formation of (local polarization) is improved.

The first electrode 5 is made of a conductive carbon material,
It is preferably formed of a chlorine corrosion resistant metal.
As the conductive carbon body, bamboo charcoal, carbon fiber (for example, carbon fiber woven fabric, carbon fiber nonwoven fabric) and the like are preferable. When bamboo charcoal is used, an integrated tubular bamboo charcoal obtained by cutting the outer surface and inner surface of a bamboo charcoal made in a cylindrical shape is preferable, but not limited to this, a large number of bamboo charcoal of an appropriate size are arranged in a tubular shape. May be done. As the chlorine corrosion-resistant metal, stainless steel, titanium, platinum, gold, stainless steel or titanium plated with platinum or gold can be used.

Further, a water-permeable net member 51 for protecting the electrode may be provided on the inner peripheral surface of the first cylindrical electrode 5. The net member 51 may be a woven fabric or a non-woven fabric, and may be formed from natural fibers such as cotton, regenerated fibers such as cellulose, polyester fibers, nylon 6, nylon 6
6, synthetic fibers such as polyamide fibers such as nylon 46 and polyolefin fibers such as polyethylene and polypropylene can be used.

The rod-like second electrode 6 is preferably used as the cathode side. The second electrode 6 is preferably formed of a conductive carbon body or a chlorine-resistant metal. As the conductive carbon body, graphite, carbon fiber (for example, carbon fiber woven fabric, carbon fiber nonwoven fabric) and the like are suitable. As the chlorine corrosion-resistant metal, stainless steel, titanium, platinum, gold, stainless steel or titanium plated with platinum or gold can be used. Further, a water-permeable net member 61 for protecting the electrode may be provided on the outer peripheral surface of the second electrode 6. The net member 61 may be a woven fabric or a non-woven fabric. As a forming material, natural fibers such as cotton, regenerated fibers such as cellulose, polyester fibers,
Synthetic fibers such as polyamide fibers such as nylon 6, nylon 66 and nylon 46, and polyolefin fibers such as polyethylene and polypropylene can be used.

In the deodorizing apparatus 1 of the present invention, the conductive filler 7 and the low-conductive or non-conductive water-retentive filler 8 (hereinafter referred to as the water-retentive filler) are provided between the two electrodes 5 and 6. It is stored. The filling ratio between the conductive filler 7 and the water-retentive filler 8 varies depending on the conductivity of the water-retentive filler 8, but the volume filling ratio between the conductive filler 7 and the water-retentive filler 8 is 2: 1. About 1: 2 is suitable, and 1: 1 to 1:
2 is particularly preferred.

The low-conductivity or non-conductivity water-retaining filler 8 is formed of a chlorine-corrosion-resistant material. As such a water-retentive filler, a non-conductive porous carbon body, a porous inorganic substance, and the like are preferable. As the non-conductive porous carbon body, a continuous pore non-conductive porous carbon body is preferable. Further, as the porous inorganic substance, a continuous pore porous inorganic substance is preferable. Examples of the non-conductive porous carbon body include charcoal and activated carbon which are also continuous pore non-conductive porous carbon bodies.
As the porous inorganic substance, a porous ceramic or a porous glass which is also a continuous pore porous inorganic substance can be used, and in particular, beads (in other words, spherical bodies) are suitable.

The low-conductive or non-conductive water-retaining filler 8 carries a water-soluble chloride. As the water-soluble chloride, one or more selected from sodium chloride, lithium chloride, calcium chloride, iron chloride, manganese chloride, zinc chloride, magnesium chloride, copper chloride, cobalt chloride, chloroplatinic acid is there. In particular,
Preferably, they are sodium chloride, lithium chloride, and magnesium chloride.

The amount of the water-soluble chloride carried on the water-retaining filler 8 is preferably about 5 to 20% by weight of the weight of the water-retaining filler 8. The amount of the water-soluble chloride carried in the water-retentive filler is 5 to 20 w of the volume of the water-retentive filler.
/ V% is preferred. The filler has a water retention property, so that the surface or inside of the filler contains an aqueous solution of a water-soluble chloride by the water contained in the processing gas or the water retained in advance. The chloride aqueous solution is electrolyzed in the filler by the applied voltage, and generates an oxidizing substance (for example, active oxygen, chlorine, chloride ion, hydrogen chloride, hypochlorite ion). Further, in order to favorably generate an oxidizing substance during use, it is preferable that the low-conductive or non-conductive water-retentive filler contains an aqueous solution of a water-soluble chloride. By containing an aqueous solution of a water-soluble chloride, the water-retentive filler has a fixed electrolyte bed made of an aqueous solution of a water-soluble chloride.

As a method of supporting the water-soluble chloride on the water-retentive filler 8, a predetermined concentration of salt water, specifically, 5% by weight to a saturated concentration, is immersed in the water-retentive filler 8, and the support is lifted up. Can be done. In this state, the water-retaining filler 8 contains an aqueous solution of a water-soluble chloride. Then, if necessary, it may be dried.

Further, as the conductive filler 7 housed between the electrodes together with the water-retentive filler 8, a material having an electric resistance of about graphite can be used, and is made of a chlorine corrosion-resistant material. As such a conductive filler 7, a conductive carbon body, carbon fiber, conductive silicon carbide, or the like is preferable. Metal meshes, fine metal wires, metal foils, and the like having chlorine corrosion resistance can also be used, but the carbon-based materials described above are more preferable since they have more chlorine corrosion resistance. As the conductive carbon body, a conductive porous carbon body (particularly, a differential continuous pore conductive porous carbon body) is suitable, and specifically, Bincho charcoal and porous graphite. In addition, as the carbon fiber, a carbon long fiber, a short carbon fiber, an activated carbon fiber, or a molded product thereof using an appropriate binder can be used. As the conductive silicon carbide, porous conductive silicon carbide is preferable.

Furthermore, a water-soluble chloride may be supported on the conductive filler. In this case, by using the conductive porous carbon body, the water-soluble chloride can be easily supported and has water retention, so that the water-soluble chloride is reliably dissolved at the time of use. As described above, by supporting the water-soluble chloride on the conductive filler, local polarization caused by the electrolysis product on the surface of the conductive filler occurs, and the recovery due to the adsorption of the malodorous substance to the conductive filler is performed. The polar (depolarizing, depolarizing) reaction can eliminate malodorous substances and enhance the deodorizing effect.

The power supply section 17 electrically connected to the electrodes is preferably a DC power supply. As mentioned above,
In the deodorizing apparatus 1, electric power capable of electrolyzing the aqueous chloride solution contained in the water-retaining filler 8 is supplied during use.
It is necessary to supply the voltage and current at which electrolysis occurs, but on the contrary, it is desirable not to supply excessive voltage and current. Preferably, a voltage and a current near the lower limit at which electrolysis occurs are supplied. Since the deodorizing device 1 is filled with the water-retaining filler 8 and the conductive filler 7 as described above, the flow path through which the processing gas passes is a complicated curved path, and the processing gas contains a large amount of water retention. It flows out after contacting the conductive filler 8. Therefore, it is sufficient that the chlorine-based gas is present in the vicinity of the surface of the water-retentive filler, and the amount of chlorine gas generated per unit time may be small. To do so, the power supply supplies a voltage and current near the lower limit at which electrolysis occurs. By doing so, the period until all of the water-soluble chlorides to be supported is electrolyzed can be lengthened, and a long-term deodorizing effect is exhibited. The voltage and the current value supplied to the deodorizing device are different from each other depending on the size of the deodorizing device, the water-retentive filler, the conductive filler and the filling amount thereof, and are not unique. For this reason, it is preferable to apply a current to each of the prepared deodorizing devices and measure the chlorine-based gas concentration inside the devices to obtain suitable voltage and current values. Further, the power supply unit may be capable of adjusting the voltage and the current. In this case, the use is started at a low voltage and current value, and when the deodorizing effect is not sufficient, the voltage and current value are gradually changed to adjust the voltage and current value to a suitable value.

Further, like the deodorizing apparatus 10 of another embodiment shown in FIG. 5, the activated gas 53 or quicklime may be provided on the outlet side of the processing gas. In addition, activated carbon or quicklime functions as a chlorine-based gas adsorbent. The only difference between the deodorizing apparatus 10 of this embodiment and the above-described deodorizing apparatus 1 is that the deodorizing apparatus 10 includes activated carbon 53 or quicklime. The difference will be described. This deodorizing device 10
A filling section (activated carbon filling section) 52 containing a large number of activated carbons 53 or quicklime particles provided between the processing gas outlet 43 and the filler filling section 18 is provided. Therefore, the processing gas that has passed through the filler filling section 18 flows out of the outlet 43 after coming into contact with the activated carbon 53. Therefore, even if the processing gas contains a chlorine-based gas, most of the gas is adsorbed by the activated carbon 53 and does not flow out of the deodorizing device. In the deodorizing device 10, the cylindrical housing main body 20 includes an annular rib 21a protruding inward on the inner surface on the outlet side, and the outlet side member 40 includes a cylindrical protrusion 40a extending toward the housing main body. . Then, the deodorizing device 10 includes the annular rib 21a and the cylindrical projection 40a.
The air-permeable mesh member 16 whose peripheral portion is gripped by the mesh member is provided. Thereby, the activated carbon filling part 5 of the fillers 7 and 8
2 and the activated carbon 53 into the filler filling portion 18 are prevented. The air-permeable mesh member 16 is preferably formed of a chlorine-corrosion-resistant non-conductive material. For example, a mesh made of glass fiber or synthetic fiber can be used. The mesh may be a woven or nonwoven fabric. As synthetic fibers, polyester fibers,
Synthetic fibers such as polyamide fibers such as nylon 6, nylon 66 and nylon 46, and polyolefin fibers such as polyethylene and polypropylene can be used.

The deodorizing apparatuses 1 and 10 of the above-described embodiment
Uses a cylindrical electrode and a rod-shaped electrode arranged at the center thereof, but is not limited to this type, and uses two plate-like electrodes formed in a mesh shape, The water-retentive filler supporting the conductive filler and the water-soluble chloride described above is housed therebetween, and the processing gas passes through one electrode, contacts the filler, and passes through the other electrode. It may flow out.

[0033]

[Example] Inner diameter 80 mm, outer diameter 90 mm, length 400 m
m, a polyvinyl chloride resin tubular housing body, an inlet member made of vinyl chloride resin for attaching to one end of the tubular housing body, and an outlet member made of vinyl chloride resin for attaching to the other end Was prepared. A cylindrical electrode was attached to the inner surface of the cylindrical housing. As the cylindrical electrode, a carbon fiber nonwoven fabric was arranged on the outer periphery and bamboo charcoal was arranged on the inner periphery along the inner periphery. As the rod-shaped electrode, stainless steel outer diameter 5
mm, and the outer surface of the rod-shaped electrode was covered with a polypropylene nonwoven fabric (liquid-permeable net). This net-enclosed rod-shaped electrode was disposed so as to penetrate substantially the center of a cylindrical housing having an inlet-side member attached to the lower end, and was fixed to the inlet-side member.

500 g of charcoal (3 to 4 mesh) is prepared as a low-conductive or non-conductive water-retentive filler, and 500 g of Bincho charcoal (3 to 4 mesh) is used as a conductive filler.
Was prepared. Then, the above-mentioned charcoal and bincho charcoal were immersed in 1 L of saturated saline solution, left for about 120 minutes, pulled up, drained, and dried without drying. The inside of the cylindrical housing in which the electrode was arranged was filled. Then, an outlet member was attached to the upper end of the housing main body, and the other end of the rod-shaped electrode was fixed to the outlet member, thereby producing a deodorizing device of the present invention. Then, the anode side of the DC power supply unit was connected to a contact projecting from the side of the housing main body, and the cathode side was connected to a contact of the outlet side member. Then, a current of 0.5 to 1.5 A is supplied from a DC power supply within a voltage range of 5 to 20 V (specifically, 1.2 V).
(Specifically, 1.4 A) was supplied with electricity to the deodorizing device.

A vessel filled with ammonia water (500 cc of water to which 10 cc of reagent ammonium was added) was attached to the inlet of the deodorizer. And 3L / m
The air was injected in, the outflowing gas was collected in a bag airtightly attached to the outlet, and the ammonia concentration was measured with a Kitagawa gas detector tube, but no ammonia was detected. Also,
An odor gas generated from about 1 kg of garbage was mixed with 3 L / min of air, and this air was allowed to flow into the above-mentioned deodorizing device from the inlet side in an airtight manner, and the outlet was opened to the atmosphere. 3
Even after the lapse of 0 days, no off-flavor was generated from the deodorizing device.

[0036]

According to the deodorizing apparatus of the present invention, the housing provided with the processing gas inlet and the outlet, the two electrodes housed in the housing, and the processing gas flowing from the inlet are brought into contact with each other. With a conductive filler and a low-conductive or non-conductive water-retentive filler filled between the two electrodes, the conductive filler and low-conductive or non-conductive water-retentive filler, The water-retentive filler is formed of a chlorine-corrosion-resistant material and carries a water-soluble chloride. In the method for deodorizing a processing gas containing a malodorous substance of the present invention, a processing gas containing a malodorous substance is caused to flow from a processing gas inlet of the above-described deodorizing apparatus, and the water-soluble filler carried by the water retention filler in the deodorizing apparatus. Supplying electric power capable of electrolyzing an aqueous solution of chloride, generating an electrolysis product of water-soluble chloride from the water-retentive filler, and oxidizing malodorous substances in the processing gas to deodorize the processing gas. Is what you do.

According to the deodorizing apparatus and the deodorizing method of the present invention, the water-repellent filler having low conductivity or non-conductivity is converted into water-soluble chloride by the water in the processing gas or the water retained in advance during use. When a predetermined voltage or more is applied between the two electrodes, electrolysis occurs, and an electrolysis product is generated.
Oxidizing substances in the electrolysis products are generated. Then, the odorous substance in the processing gas is oxidized by the oxidizing substance, and the processing gas is deodorized. In addition, this deodorizing device only needs to be supplied with electric power capable of electrolyzing a chloride aqueous solution at the time of use, and can perform effective deodorizing at a considerably lower voltage than an anion generating device, thus requiring a high voltage source. And not. Furthermore, even if the processing gas has a high temperature and a high humidity, the above-mentioned deodorizing system is not hindered, and the processing gas can be surely deodorized using this water.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of a deodorizing device of the present invention.

FIG. 2 is a bottom view of the deodorizing device shown in FIG.

FIG. 3 is a plan view of the deodorizing device shown in FIG.

FIG. 4 is a sectional view of the deodorizing device shown in FIG.

FIG. 5 is a sectional view of another embodiment of the deodorizing apparatus of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 10 Deodorizing apparatus 2 Housing 5 Cylindrical 1st electrode 6 Rod-shaped 2nd electrode 7 Conductive filler 8 Water-retentive filler 31 Processing gas inlet 43 Processing gas outlet

Continued on front page F term (reference) 4C002 DD05 DD13 EE07 KK01 4C080 AA07 BB02 CC01 HH02 JJ03 KK03 MM09 QQ03 4D061 DA10 DB19 DC04 EA02 EB04 EB14 EB28 EB29 EB30 EB34 ED12 ED13

Claims (20)

[Claims] 1. A housing having a processing gas inlet and an outlet, two electrodes housed in the housing, and a space between the two electrodes such that the processing gas flowing from the inlet contacts the two electrodes. Provided with a conductive filler and a low-conductive or non-conductive water-retentive filler, wherein the conductive filler and the low-conductive or non-conductive water-retentive filler are formed of a chlorine corrosion-resistant material. And the water-retentive filler carries a water-soluble chloride. 2. The deodorizing device according to claim 1, wherein the deodorizing device generates an electrolysis product of a water-soluble chloride from a water-retentive filler by applying a current between the two electrodes. 3. The deodorizing apparatus according to claim 1, wherein the conductive filler has water retention. 4. The deodorizer according to claim 1, wherein the water-retentive filler contains an aqueous solution of a water-soluble chloride. 5. The deodorizer according to claim 1, wherein the conductive filler has a water retention property and carries a water-soluble chloride. 6. The deodorizing apparatus according to claim 1, wherein the conductive filler is a conductive porous carbon body or carbon fiber. 7. The deodorizing apparatus according to claim 1, wherein the conductive filler is bincho charcoal. 8. The deodorizing apparatus according to claim 1, wherein the low-conductive or non-conductive water-retentive filler is a non-conductive porous carbon material or a porous inorganic material. 9. The two electrodes comprise a cylindrical first electrode and a rod-shaped second electrode disposed substantially at the center of the cylindrical first electrode. 8. The deodorizing device according to any one of 8 above. 10. The deodorizing device according to claim 1, wherein the deodorizing device includes a DC power supply connected to the two electrodes. 11. The deodorizing device according to claim 1, wherein the DC power supply unit supplies electric power capable of electrolyzing an aqueous solution of a water-soluble chloride carried by the water-retentive filler. . 12. The deodorizing apparatus according to claim 10, wherein the DC power supply unit has an anode side connected to the cylindrical first electrode and a cathode connected to the rod-shaped second electrode. 13. The deodorizing apparatus according to claim 1, wherein an anode electrode of the two electrodes is made of a conductive carbon material or a chlorine corrosion-resistant metal. 14. A cathode side electrode of the two electrodes is a metal or a conductive carbon body.
3. The deodorizing device according to any one of 3. 15. The deodorizer according to claim 14, wherein the conductive carbon body is bamboo charcoal. 16. The water-soluble chloride is at least one selected from sodium chloride, lithium chloride, calcium chloride, iron chloride, manganese chloride, zinc chloride, magnesium chloride, copper chloride, cobalt chloride, and chloroplatinic acid. The deodorizing device according to any one of claims 1 to 15, which is a device. 17. The deodorizing device includes a chlorine-based gas adsorbent disposed on the processing gas outlet side.
The deodorizing device according to any one of to 16. 18. The deodorizing device according to claim 1, wherein the deodorizing device includes activated carbon or quicklime particles disposed on the processing gas outlet side. 19. The deodorizing device according to claim 1, wherein the deodorizing device is a deodorizing device for high humidity air. 20. A process gas containing a malodorous substance is caused to flow through a process gas inlet of the deodorizing apparatus according to any one of claims 1 to 17, and the water-soluble filler carried on the deodorizing apparatus by the water-retentive filler. Supplying electric power capable of electrolyzing an aqueous solution of chloride, generating an electrolysis product of water-soluble chloride from the water-retentive filler, and oxidizing malodorous substances in the processing gas to deodorize the processing gas. A method for deodorizing a treated gas containing a malodorous substance.