JP2002301333A - Incineration device for refuse and method for incinerating refuse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device and a method for decomposing halogenated organic compounds included in the waste gas from an incineration furnace of refuse, the device and the method being easily operated at a low cost for the treatment. SOLUTION: The incineration device for refuse is equipped with a decomposing device for halogenated organic compounds consisting of a blowing device to blow trivalent or tetravalent Mn oxides into the waste gas generating from the incineration furnace to incinerate refuse, a collecting device to collect a mixture containing the blown Mn oxides and a recovering device to recover the mixture containing the collected Mn oxides. The method for incinerating refuse is carried out by using the above device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an apparatus and a method for decomposing halogenated organic compounds such as dioxins contained in exhaust gas generated from an incinerator when municipal solid waste, industrial waste, medical waste and the like are incinerated. About.

[0002]

2. Description of the Related Art In recent years, extremely toxic dioxins and other halogenated organic compounds have been detected in exhaust gas generated from the process of burning municipal solid waste or industrial waste or the process of metal refining using an electric furnace. , Has become a serious problem.

[0003] have become stricter regulations on emissions of dioxins in the recent example, for a continuous incinerators new, the content of dioxins in the exhaust gas 0.1ng-TEQ / Nm ³ below It is prescribed to do. And simply using technology to control the production of dioxins cannot meet the above regulation values,
For example, in the current refuse incinerators and the like, a process for removing dioxins in exhaust gas is performed by blowing activated carbon on the upstream side of a dust filter (bag filter) and lowering the gas temperature in the dust filter. I have. However,
In the treatment by this method, only dioxins are removed from exhaust gas, and dioxins themselves are collected and discharged together with dust ash. For this reason, a treatment for detoxifying dioxins in the collected dust ash must be performed, and the treatment by this method is not an essential solution.

On the other hand, studies have been made to decompose highly toxic chlorinated aromatic compounds such as dioxins, and various techniques described below have been developed. These technologies include high-temperature incineration, microbial treatment, and chemical decomposition.Among these, the chemical decomposition is a method in which the reaction is carried out in a low temperature range and the decomposition is efficient in a short time. It has features such as what it can do. In this chemical decomposition treatment method, a method is used in which dioxins are decomposed by an oxidation reaction or the like by filling a reactive agent such as a catalyst in a fixed bed system and passing exhaust gas therethrough.
As an example. Other examples include a method using a noble metal catalyst and hydrogen gas, a method of heating the catalyst to 300 ° C. to 350 ° C. in the presence of a catalyst, an alkali, and a hydrogen donor. And then dechlorination.

In one of the chemical decomposition treatment methods, after adding an oxidizing agent to exhaust gas, the exhaust gas is brought into contact with a catalyst layer of manganese dioxide to oxidatively decompose dioxin and when the catalyst layer is clogged. Exhaust gas characterized by washing the catalyst layer by sequentially filling with water, air washing, water washing, and draining by an empty washing tube and a washing tube provided below the catalyst layer, and then restarting the exhaust gas treatment. A method of removing dioxin from the inside is known (Japanese Patent No. 28992).
No. 70). The oxidizing agent is permanganate or hydrogen peroxide, and does not include manganese oxide.

[0006]

However, in the above-mentioned chemical decomposition treatment method, there are generally complicated reaction steps, and strict operation management is required when operating an actual apparatus. In addition, expensive materials must be used, which increases processing costs. Furthermore, when the fixed bed method is adopted, clogging due to dust and incineration fly ash contained in exhaust gas becomes a problem, and complicated processes such as a device for eliminating the clogging and a cleaning agent are also required. Is required, and the processing cost increases.

It is an object of the present invention to solve the above-mentioned problems and to provide an apparatus and a method for decomposing a halogenated organic compound which can be easily operated and have a low processing cost.

[0008]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and have found that trivalent or tetravalent manganese oxidation is directly performed on exhaust gas containing dioxins and the like generated from a combustion furnace for burning refuse. Oxidizing and decomposing halogenated organic compounds such as dioxins by blowing a substance or by passing exhaust gas containing dioxins or the like through a moving bed filled with trivalent or tetravalent manganese oxide. It has been found that if manganese oxide is collected or collected, the exhaust gas can be released into the atmosphere as harmless.

The present invention has been made on the basis of the above findings, and has a blowing device for blowing trivalent or tetravalent Mn oxide into exhaust gas generated from a combustion furnace for incineration of refuse. A garbage incinerator and a garbage incinerator, comprising: a collection device for collecting the mixture containing the manganese oxide; and a recovery device for collecting the mixture containing the collected Mn oxide. Trivalent or tetravalent Mn through which the exhaust gas generated from the combustion furnace is passed
A moving bed filled with oxide, and a collecting apparatus for collecting the mixture containing the Mn oxide from the moving bed, a refuse incinerator comprising a decomposer for a halogen organic compound in exhaust gas, The collecting device is configured to collect the collected M
a refuse incinerator as described above, comprising means for separating Mn oxide from a mixture containing n oxide, and a refuse as described above, wherein the recovery apparatus comprises means for regenerating Mn oxide. The incineration described above, further comprising an incinerator, a blowing device that blows the mixture containing the recovered Mn oxide, the separated Mn oxide or the regenerated Mn oxide into the exhaust gas again. The apparatus according to the above, further comprising a control device for controlling a blowing amount of a trivalent or tetravalent Mn oxide based on a generation amount of a halogenated organic compound in exhaust gas generated from a combustion furnace for burning refuse. A decomposer for decomposing halogenated organic compounds in exhaust gas, and a measuring device for measuring the amount of halogenated organic compounds generated in exhaust gas generated from a combustion furnace for burning refuse, wherein the control device But trivalent or 4 based on the occurrence data of the halogenated organic compound in which the measuring device is measured
The apparatus for decomposing halogenated organic compounds in the exhaust gas and the exhaust gas generated from the combustion furnace for burning refuse are used to control the amount of trivalent or tetravalent Mn oxide.
Decomposition of halogenated organic compounds in exhaust gas generated from a refuse incinerator, which comprises a step of blowing an oxide, a step of collecting the blown Mn oxide, and a step of collecting a mixture containing the collected Mn oxide. A method, a step of separating Mn oxide from the mixture, a step of regenerating the separated Mn oxide, and a mixture containing the recovered Mn oxide, a separated Mn oxide or regenerated. A method for decomposing a halogenated organic compound in the exhaust gas, which comprises a step of injecting the Mn oxide into the exhaust gas, passing the exhaust gas generated from a combustion furnace burning refuse through a moving bed in which trivalent or tetravalent Mn oxide moves. And moving M in the moving bed
a method for decomposing a halogenated organic compound in exhaust gas generated from a refuse incinerator comprising a step of recovering a mixture containing n oxides, a step of separating Mn oxides from the mixture, and a step of regenerating the separated Mn oxides Decomposition of the halogenated organic compound in the exhaust gas described above, which comprises the step of treating and introducing the mixture containing the recovered Mn oxide, the separated Mn oxide or the regenerated Mn oxide into the moving bed. The method for decomposing a halogenated organic compound in an exhaust gas as described above, wherein the temperature of the exhaust gas at the site where the trivalent or tetravalent Mn oxide is blown is at least the temperature at which the halogenated organic compound is in the gas phase. The method of decomposing the halogenated organic compound in the exhaust gas, wherein the temperature of the exhaust gas entering the exhaust gas is at least the temperature at which the halogenated organic compound is in the gas phase,
Measuring a generation amount of a halogenated organic compound in an exhaust gas generated from a combustion furnace for burning refuse, and blowing a trivalent or tetravalent Mn oxide into the exhaust gas based on the generation amount of the halogenated organic compound. Process and the blown M
The present invention relates to a method for decomposing a halogenated organic compound in exhaust gas generated from a refuse combustion furnace, which comprises a step of collecting n-oxide and a step of collecting a mixture containing the collected Mn oxide.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The halogenated organic compound to which the present invention is applied is contained in flue gas generated from a municipal solid waste incinerator or a combustion furnace for burning refuse or combustibles in various kinds of incineration processes containing halogen-containing combustibles. Included chlorobenzenes, chlorodibenzodioxin, chlorodibenzofuran, chlorinated organic compounds such as polychlorinated biphenyl, other bromobenzenes, bromodibenzodioxin, bromodibenzofuran, polybrominated biphenyl and fluorobenzenes, fluorodibenzodioxin, fluorodibenzofuran, And polyfluorinated biphenyl.

The trivalent or tetravalent manganese oxide is manganese trioxide or manganese dioxide, and includes mixtures thereof.

[0012] Several types of devices for injecting trivalent or tetravalent manganese oxide into exhaust gas can be employed.

As one of the methods, trivalent or tetravalent Mn oxide is pulverized, and the powder is blown into exhaust gas from a blowing nozzle for blowing slaked lime or activated carbon.
The halogenated organic compounds in the exhaust gas can be decomposed. In this case, the powdered Mn oxide is directly blown into the flue to coexist in the exhaust gas.

The halogenated organic compound can also be prepared by mixing the Mn oxide powder with a liquid such as water to form a slurry, and blowing the same into exhaust gas by a blowing means such as a blowing nozzle similar to the slurry. Can be disassembled. For example, in a refuse incineration facility or the like, when a device or the like for performing water spray for lowering the gas temperature is provided, the slurry is sprayed instead of the water, and the slurry is brought into contact with an exhaust gas containing a halogenated organic compound. You can also.

The optimum particle size of the Mn oxide powder coexisting with the exhaust gas containing the halogenated organic compound as described above is selected depending on the gas treatment method. When the Mn oxide is blown into the exhaust gas containing the halogenated organic compound, the trivalent or tetravalent M present in the surface layer of the particles may be used.
Since the n-oxide is considered to be involved in the decomposition of the halogenated organic compound, it is desirable that the particles are as fine as possible.

The moving layer filled with a trivalent or tetravalent manganese oxide is a layer for bringing a gas into contact with a moving packed layer. For example, by introducing exhaust gas from the horizontal direction and contacting it from the vertical direction, It is possible to efficiently perform the oxidative decomposition of the halogenated organic compound in the exhaust gas. The particle size of the trivalent or tetravalent manganese oxide to be filled in the moving bed is controlled so as not to cause clogging by dust or incineration fly ash contained in the exhaust gas. The particle size is desirably fine, but a certain particle size is required so as not to cause clogging, and is desirably 0.5 mm or more and 10 mm or less. The size of the moving bed body is
It must be large enough to achieve a gas flow rate such that the filled manganese oxide is not blown off by the gas flow rate.

By using the moving bed method, a large amount of Mn oxide can be brought into contact with the exhaust gas, and theoretically the halogenated organic compound in the exhaust gas can be completely decomposed. Also,
In addition to being able to oxidatively decompose halogenated organic compounds in the exhaust gas, it also has the effect of removing some of the dust and incineration fly ash in the exhaust gas. By reacting with gas or chlorine gas, there is an advantage that re-synthesis of dioxins and the like in the subsequent stage is prevented.

Mn oxides can also be used in fixed beds. In that case, the exhaust gas to be brought into contact is preferably after dust removal, and the temperature is preferably 450 ° C. or higher.

Alternatively, a thin box may be filled with Mn oxide to form a packed layer, and this may be inserted into and contacted with a duct through which exhaust gas flows. After some use, pull out this box and replace it with a new one.

The decomposition reaction of the halogenated organic compound by the Mn oxide proceeds when the temperature is about 50 degrees, and is accelerated when the temperature is high. However, for example, when the temperature exceeds 530 ° C., manganese dioxide which is a tetravalent Mn oxide self-decomposes, and when it exceeds 950 ° C., manganese trioxide which is a trivalent Mn oxide self-decomposes. Therefore, it is necessary to react in a temperature range that does not reach these temperatures. The temperature at which dioxins are in the gas phase or the temperature at which dioxins do not adsorb to dust (specifically, 400 ° C.
Or more, more preferably 450 ° C. or more). The decomposition of the halogenated organic compound by the Mn oxide in the present invention is an oxidative decomposition reaction, and the final products are carbon dioxide, water, HCl and the like.

In addition to Mn oxides, metal oxides such as CeO ₂ and Fe ₂ O ₃ can be used.

As a device for collecting Mn oxides coexisting in the flue by a blowing device, an electric dust collector (EP) or a bag filter (B) which is usually employed in a refuse incinerator or the like is used.
F) and other collecting devices can be used.

As an example of a device for collecting the collected Mn oxides and the like, a bag filter (BF) used in a refuse incinerator or the like is taken as an example. The components such as materials and slaked lime can be removed by sending pulsed air or the like, and the removed Mn oxide and the like can be collected. In addition, a collecting means such as passing through water or a collecting means for collecting dust by ultrasonic waves or the like can be adopted.

In the case of the moving bed system, the trivalent or tetravalent manganese compound filled in the lower part of the moving bed is recovered, and at the same time, dust and incinerated fly ash adsorbed when passing the exhaust gas are recovered.

The recovered Mn oxide, slaked lime, activated carbon,
As an example of a separation device for separating only Mn oxide from a mixture containing dust, fly ash, and the like, there is a device that utilizes a difference in specific gravity. For example, there are a device that separates a Mn oxide having a large specific gravity (approximately 5 in average specific gravity) by applying vibration, a centrifugal separator that employs a centrifuge, and the like.

The trivalent or tetravalent Mn oxide in the recovered Mn oxide has been reduced by the oxidative decomposition reaction, but it is regenerated and transported again to the blowing device for use, or used in the moving bed. It is preferable to refill and reuse. It is regenerated by replenishing oxygen lost from manganese dioxide by the oxidative decomposition reaction. As a method of replenishing oxygen, a heating reaction under conditions of high oxygen concentration or accompanying a molecule or compound that easily releases oxygen such as ozone or hydrogen peroxide, and setting the reaction temperature to a level that can replenish oxygen, The lost oxygen can be replenished, and the original trivalent or tetravalent Mn oxide state is restored. In addition to these compounds, there is also a method using an oxidizing agent such as potassium permanganate or a mixture thereof. In addition, since not all of the deteriorated Mn oxide is regenerated at this time, the trivalent or tetravalent Mn oxide is replenished to regenerate the Mn oxide to maintain the overall decomposition performance of the halogenated organic compound. it can. Further, the decomposed halogenated organic compound decomposing agent (a mixture containing Mn oxide, a Mn oxide separated from the mixture, etc.) is recovered and added to an iron making process (for component adjustment in a converter, etc., and a sintering furnace). Used as a raw material for methane, used for adjusting raw materials and components in a blast furnace, used for adjusting raw materials and components in an electric furnace, etc.), and discharged in the decomposition process of halogenated organic compounds. The total amount of goods can be reduced.

[0027]

Embodiment 1 An outline of the structure of a refuse incinerator according to one embodiment of the present invention is shown in FIG.

This device includes a blowing device 2 for blowing Mn oxide into exhaust gas generated from a combustion chamber 1,
A dust collector 3 for collecting oxides, a collecting device 4 for collecting collected Mn oxides, a separating device 5 for separating Mn oxides from a mixture containing the collected Mn oxides, and a separated M
It comprises a regenerating device 6 for regenerating n-oxide.

With respect to the exhaust gas generated from the combustion furnace 1, at a temperature of the exhaust gas of 450.degree.
By blowing n-oxide, the halogenated organic compound in the exhaust gas can be oxidized and decomposed.

The blowing device 2 comprises a storage hopper for storing the Mn oxide and a table feeder for cutting the Mn oxide. The cut Mn oxide is conveyed by a hose or the like using a blower, and is blown using a blowing nozzle. It is introduced into the exhaust gas. The collecting device 3 is a dust collector, such as a bag filter. The recovery of Mn oxide and the like from the dust collector 3 may be performed before the amount of collected particles increases and the filter speed decreases. The collection device 4 is a receiving tank for the particles removed from the dust collector 3.

The particle size of the Mn oxide used is preferably fine from the characteristics of the oxidative decomposition reaction of the halogenated organic compound. However, the particle size must be such that the dust is collected by the dust collector 3. The mixture containing the recovered Mn oxide is transported to the separation device 5, where it is separated into Mn oxide and other substances. The separating device is, for example, a cyclone. The separated Mn oxide is regenerated into a trivalent or tetravalent Mn oxide in the regenerating device 6. The regenerating device is a device for regenerating by heating at 500 ° C. for 2 hours in an atmosphere having an oxygen concentration of 32%. The regenerated Mn oxide is supplied to the blowing device 2 again, and is introduced from the duct by the blowing nozzle. With such an incinerator, it is possible to completely decompose a halogen-valent organic compound including dioxin and the like generated from a combustion furnace without increasing the amount of incineration ash and the like.

Example 2 Combustion furnace for burning refuse, Mn oxide blowing device, Mn
A test consisting of an oxide collection device and a recovery device that collects the collected Mn oxide. A test was conducted in which Mn oxide was blown into exhaust gas using a waste incinerator to decompose and remove dioxins contained in the exhaust gas. A description will be given of the implementation.

The exhaust gas generated from the combustion furnace was blown with Mn oxide using a blowing device. The Mn oxide used was obtained by grinding manganese ore from Australia to 20 to 30 μm. Blowing device, the content amount of 1.5m ^3,
The fixed amount can be cut out with a table feeder. The cut manganese ore was conveyed by a blower, and was blown into a flue from a blow nozzle. The exhaust gas temperature at the blowing location was approximately 450 ° C. The blowing amount was adjusted by adjusting the cutting amount so as to be 1 kg / h.
The injected manganese ore was collected in its entirety by an electric precipitator, which is a collection device. The dust collection temperature was 200 ° C. The collected Mn oxide was collected together with the dust ash by a collecting device. The blowing test was carried out as described above, and the exhaust gas was sampled and the dioxin concentration was analyzed before and after the blowing according to the official analysis of dioxins (JIS K 0311). Table 1 shows the results.

[0034]

[Table 1]

According to Table 1, it was confirmed that by blowing the Mn oxide, the dioxins in the exhaust gas were decomposed by the oxidizing action of manganese dioxide in the Mn oxide, and the concentration in terms of toxicity decreased.

Embodiment 3 An incinerator according to another embodiment of the present invention is shown in FIG. This apparatus includes a moving bed 7 for bringing Mn oxide into contact with exhaust gas generated from the combustion chamber 1, a collecting apparatus 4 for collecting Mn oxide moving from the moving bed, and a regenerating apparatus for regenerating the collected Mn oxide. 6 and a supply device 8 for supplying the Mn oxide again after regeneration. Exhaust gas after contacting the moving bed is collected by the dust collector 3 such as dust and incinerated fly ash.
Exhaust gas is emitted from the chimney.

By bringing exhaust gas generated from the combustion furnace 1 into contact with the moving bed 7 at an exhaust gas temperature of 450 ° C.,
Oxidative decomposition of halogenated organic compounds in exhaust gas.

The moving layer 7 comprises a filling section filled with Mn oxide and a cutting device capable of adjusting the moving speed. In the present embodiment, M is filled with exhaust gas from the horizontal direction with respect to the moving bed.
The contact with the n-oxide oxidizes and decomposes the halogenated organic compound in the exhaust gas. Collection of used Mn oxide and incinerated ash and dust collected in the mobile bed
Do with. The collection device is, for example, a receiving tank for incinerated fly ash.

The Mn oxide used has a particle diameter of 5 mm. The recovered Mn oxide is regenerated into a trivalent or tetravalent Mn oxide by the regenerator 6. The regenerating device is a device for regenerating by heating at 500 ° C. for 2 hours in an atmosphere having an oxygen concentration of 32%. The regenerated Mn oxide is conveyed to the Mn oxide supply device 8 after the regeneration, and supplied to the moving layer 7. Such an incinerator makes it possible to completely decompose a halogenated organic compound containing dioxin and the like generated from a combustion furnace without increasing the amount of incinerated ash and the like. In addition, in the case of the method as in the present embodiment, there is an advantage that the load on the subsequent dust collector can be greatly reduced, and the dust collector can be downsized.

Example 4 Exhaust gas generated from an exhaust gas generation facility was sampled and passed through a moving bed in which Mn oxides moved, whereby a test was conducted to decompose and remove dioxins contained in the exhaust gas. I do.

FIG. 3 is an explanatory diagram of the test method. In FIG. 3, reference numeral 1 denotes a combustion furnace, 3 denotes a dust remover, and 11 denotes a flue for connecting each of the above devices. Reference numeral 7 denotes a moving layer in which Mn oxide moves, and reference numeral 4 denotes a recovery device for recovering the moved Mn oxide. The moving layer had an inner diameter of 100 mm, and the Mn oxide filling height was 500 mm. The porosity at the time of filling was about 50%. Exhaust gas flows from the bottom of the moving bed to Mn.
The contact was made in countercurrent to the moving direction of the oxide. Exhaust gas that passed through the moving bed was sucked by the pump 12 and returned to the flue. For the movement of the Mn oxide in the moving bed, a fixed amount was discharged by a rotary feeder below the moving bed. Mn oxide feeder 1 of the same amount
3 and adjusted so that a fixed amount of Mn oxide moves in the moving layer. The Mn oxide filled in the moving bed was obtained by pulverizing manganese ore from Australia to a particle diameter of 1 mm.
The moving speed of the moving bed was adjusted to be a linear speed of 50 mm / h. In order to keep the temperature in the moving bed within a predetermined range, a pipe from the exhaust gas intake nozzle to the sampling nozzle for the exhaust gas after the reaction is provided with a heater trace, and the moving bed is also heated to a predetermined temperature in the electric furnace 14 to have a predetermined temperature. It was adjusted to become. Install the test equipment as described above,
Exhaust gas was sucked at a gas flow rate of 1 m ³ / min. Exhaust gas temperature is 450 ° C, heater trace,
The electric furnace temperature was adjusted to 450 ° C., and suction was performed. After the steady state, the sampling nozzles 15 and 16
, Exhaust gas sampling was performed in accordance with the usual method adopted when analyzing dioxins, and dioxins were analyzed. Table 2 shows the results.

[0042]

[Table 2]

According to Table 2, it was confirmed that by passing exhaust gas containing dioxins through the moving bed filled with Mn oxide, a decomposition effect of about 100% was obtained.

[0044]

According to the present invention, it is possible to oxidatively decompose halogenated organic compounds in exhaust gas generated from a combustion furnace for burning refuse by an effective and inexpensive means.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a refuse incinerator according to one embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a refuse incinerator according to another embodiment of the present invention.

FIG. 3 is a diagram showing a configuration of a refuse incinerator according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Combustion furnace 2 ... Blowing device 3 ... Dust collector 4 ... Recovery device 5 ... Separation device 6 ... Regeneration device 7 ... Moving bed 8 ... Regeneration Mn oxide supply device

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4D002 AA21 AC04 BA03 BA05 BA14 CA08 CA11 DA05 DA11 DA12 DA24 DA41 EA02 EA08 GA02 GA03 GB02 GB03 GB06 4H006 AA05 AC13 AC26 BA16 BA30

Claims (14)

[Claims] 1. A blowing device for blowing trivalent or tetravalent Mn oxide into exhaust gas generated from a combustion furnace for incinerating waste, a collecting device for collecting a mixture containing the blown Mn oxide, A refuse incineration device comprising a device for decomposing a halogenated organic compound, the device comprising a recovery device for recovering the mixture containing the collected Mn oxides 2. A moving bed filled with a trivalent or tetravalent Mn oxide through which exhaust gas generated from a combustion furnace for incineration of refuse passes, and a collection for collecting a mixture containing the Mn oxide from the moving bed A waste incinerator comprising an apparatus for decomposing halogen organic compounds in exhaust gas 3. The refuse incinerator according to claim 1, wherein the recovery device includes means for separating the Mn oxide from the collected mixture containing the Mn oxide. 4. The refuse incinerator according to claim 1, wherein the recovery device includes a Mn oxide regenerating unit. 5. A blower for blowing the mixture containing the recovered Mn oxide, the separated Mn oxide or the regenerated Mn oxide into the exhaust gas again. Waste incinerator according to 1, 2, 3, or 4 6. A control device for controlling a blowing amount of a trivalent or tetravalent Mn oxide based on a generation amount of a halogenated organic compound in an exhaust gas generated from a combustion furnace for burning refuse. The apparatus for decomposing a halogenated organic compound in an exhaust gas according to claim 1, 2, 3, 4, or 5. 7. A measuring apparatus for measuring an amount of halogenated organic compound in exhaust gas generated from a combustion furnace for burning refuse, wherein the control device is configured to control the halogenated organic compound measured by the measuring device. 7. An apparatus for decomposing a halogenated organic compound in exhaust gas according to claim 6, wherein the amount of the trivalent or tetravalent Mn oxide to be blown is controlled on the basis of the data on the generation of Mn oxide. 8. A step of injecting a trivalent or tetravalent Mn oxide into exhaust gas generated from a combustion furnace for burning refuse, a step of collecting the injected Mn oxide,
A method for decomposing halogenated organic compounds in exhaust gas generated from a refuse incinerator comprising a step of recovering a mixture containing oxides 9. a step of separating Mn oxide from the mixture, a step of regenerating the separated Mn oxide,
A mixture containing the recovered Mn oxide, separated Mn
9. The method for decomposing a halogenated organic compound in an exhaust gas according to claim 8, comprising a step of blowing the oxide or the regenerated Mn oxide into the exhaust gas. 10. A step of passing exhaust gas generated from a combustion furnace for burning refuse through a moving bed in which trivalent or tetravalent Mn oxide moves, and collecting a mixture containing the Mn oxide moved in the moving bed. Of Halogenated Organic Compounds in Exhaust Gas from Waste Incinerator 11. A step of separating Mn oxide from the mixture, a step of regenerating the separated Mn oxide, a mixture containing the recovered Mn oxide, a separated Mn oxide or regeneration. The method for decomposing a halogenated organic compound in an exhaust gas according to claim 10, comprising a step of introducing the treated Mn oxide into a moving bed. 12. The halogenation in the exhaust gas according to claim 8, wherein the temperature of the exhaust gas at the site where the trivalent or tetravalent Mn oxide is blown is at least a temperature at which the halogenated organic compound is in the gas phase. Organic compound decomposition method 13. The method for decomposing a halogenated organic compound in exhaust gas according to claim 10 or 11, wherein the temperature of the exhaust gas entering the moving bed is at least a temperature at which the halogenated organic compound is in the gas phase. 14. A step of measuring the amount of halogenated organic compounds generated in the exhaust gas generated from a combustion furnace for burning refuse, and trivalent or tetravalent Mn is added to the exhaust gas based on the generated amount of the halogenated organic compounds. A step of blowing the oxide, a step of collecting the blown Mn oxide, and a step of collecting the collected Mn.
A method for decomposing a halogenated organic compound in an exhaust gas generated from a refuse combustion furnace, comprising a step of recovering a mixture containing an oxide