KR20100040075A - Offensive odor treatment chimney and the usage functioning sterilization - Google Patents

Abstract

PURPOSE: A deodorization tower for removing foul smell with a sterilization function and a using method thereof are provided to remove foul smell, various kinds of bacteria, and residual ozone gas by high temperature plasma arc discharge. CONSTITUTION: A deodorization tower for removing foul smell with a sterilization function includes a plasma arc discharge part(7) located on the top of water surface, and a composite media packed layer(5) consisting of activated charcoal, zeolite and an anthracite layer and is filled on the bottom of the water surface. A deodorization method of the foul smell includes the following steps: mixing ozone and the foul smell in a mixing machine(3); transferring the foul smell to a lower part of the deodorization tower through a foul smell outlet(4); dissolving water-soluble components; adsorption-removing the foul smell components through adsorption and decomposition reaction; and removing combustible gas components by a plasma discharge machine.

Description

Offensive odor treatment chimney and the usage functioning sterilization}

The present application relates to a technical field belonging to a deodorization apparatus of a waste treatment facility for removing malodors and various fungi generated during the treatment or decomposition of various wastes.

More specifically, the present invention relates to a deodorization apparatus of a waste treatment facility for removing carbon dioxide, ammonia gas, ozone, hydrogen sulfide, mercuptane, and the like as odorous substances and harmful substances generated during the treatment or decomposition of various wastes. Deodorization tower provided in the unit is mixed with ozone to the odor gas at the inlet of the device is introduced into the lower portion of the deodorizing tower, but passes through the filter media installed in the bottom with water through a lot of filtration and sterilization process in this process. The filter layer is filled with the composite filter layer, and each filler absorbs or decomposes carbon dioxide, ammonia gas, ozone, hydrogen sulfide, etc., and the remaining contaminants not removed from the composite filter layer are again plasma sliding arc discharge. Volatile organic compounds (VOCS) odors, bacteria and residual odors Between the oxide, by a reduction reaction Odor serving as a sterilizing ability to process a bad smell and water pests within a short time and the deodorization tower is related to methods for their use.

As a conventional technique in the field of waste treatment facilities for removing odors and various fungi generated during treatment or decomposition of various wastes, microbial propagation, activated carbon filtration and ozone treatment have been applied. The technology has a limit to its application, in part because it has an adsorption effect on the odor gas of a specific component, and its effect is not universally recognized.

In other words, the method of removing odor by multiplying microorganisms in order to grow and multiply microorganisms in a deodorizing tank is required to first be organic, and even if the same organic matter, the same concentration, constant volume, constant temperature, constant injection As the reaction conditions are difficult to maintain the oxygen concentration and the oxygen content, the operation conditions are demanding, requiring a high level of skill and skillful experience from the operation manager, and requiring a high level of technology to manage the growth of microorganisms. .

In addition, the activated carbon adsorption method has carbon dioxide as the main target of adsorption and there is a limit to the adsorption, so it is difficult to maintain the efficacy of frequent replacement of the media, and the ammonia system has been tried by using a composite media using zeolite with activated carbon. Partial removal of nitrogen oxides, carbon dioxide, etc., but this method also had a problem of poor adsorption efficiency if the filler was not frequently replaced.

In addition, the ozone treatment method, which has been used in the prior art, is relatively effective in removing odor due to its relatively strong oxidizing power, but there is a problem of residual ozone treatment.There is a limitation in the ozone adsorption process of activated carbon in low temperature treatment. Many attempts have been made over the last 30 years, and many effects have been shown on bacteria, sterilization, sterilization, etc., but they have limitations that are not effective in removing odors, especially ammonia hydrogen sulfide and NO ₂ .

In addition, in recent years, the treatment of the plasma generating apparatus has been attempted, but this is usually a low-temperature plasma generating apparatus has a problem of low processing capacity, low energy, low efficiency, which is in a stalemate state without any effect.

In addition, the adsorption decomposition operation or the conventional physicochemical treatment method using the conventional adsorbent does not have high pollutant gas removal efficiency, but it is expensive in terms of facility cost, material cost, chemical cost, and operation cost, and has high technology in terms of operation technology. In view of the problems mentioned above, the present application provides a deodorizing tower for universally removing odorous substances and various fungi generated during the treatment or decomposition of various wastes, and contaminated gas. In order to improve the efficiency of removal, reduce the equipment cost of equipment, material cost, chemicals, etc., and devise a deodorizing device that has the effect of reducing operation and operating costs, it has been devoted to the research and led to patent application in search of innovative treatment method.

This company is a waste treatment facility to remove odors and various fungi generated during the processing or decomposition of various wastes, and improves the efficiency of removing polluted gas, and lowers the equipment facility cost, material cost, chemical cost, etc. It is an invention started with the problem to provide the deodorizing tower which has a reducing effect.

More specifically, the present invention is a deodorizing apparatus for removing odorous substances and various fungi generated during the treatment or decomposition of various wastes, and has a composite media layer at the bottom, and performs adsorption or decomposition according to the characteristics of each filler. The pollutant gas or residual material remaining after passing through the filter media layer is subjected to a plasma arc discharge reaction at the top to remove the remaining substances, and then, to provide a odor removal and deodorizing means having a sterilization function to discharge only clean gas to the atmosphere through an adsorption filter. Has the purpose.

In addition, in the deodorization method using the deodorizing means of the above structure, the odorous gas generated during the treatment or decomposition of various wastes is mixed into the lower portion of the deodorization tower by mixing ozone with the odorous gas at the inlet of the deodorization tower. Partially dissolved in water together with water by being sent to the water layer, and the fine particles are also held together and removed by primary separation, passing through the composite media layer with water, adsorbed and decomposed to the media layer, and residual pollutant gas passed through the composite media layer. The residual ozone, etc., has the technical idea to decompose and remove various odorous substances within seconds by using the instantaneous high temperature plasma arc discharge generation reaction, which is tens of times stronger than the existing ozone oxidation reaction. Ozone + water adsorption + composite media layer + plasma high temperature discharge + photocatalyst + adsorption filter It is an object to provide a combined deodorization method.

Odor prevention or odor gas decomposition, odor gas removal technology, which is presented as a means for achieving the above object, partially complements and integrates the disadvantages of the techniques that have been attempted in the art with new technologies and utilizes the advantages of existing technologies. By converting low temperature plasma reaction into instantaneous high temperature plasma arc discharge generation reaction, it can not only decompose tens of times more powerful than existing ozone oxidation reaction, but also decompose ozone treatment in seconds, and decompose and remove various odorous substances. As a completed technology, the odor gas + ozone + water adsorption + composite media layer + plasma high temperature discharge + TiO ₂ (titanium dioxide) photocatalyst powder + adsorption filter were combined and completed.

That is, it can be said that the low-temperature plasma arc discharge technology, which has been partially known or used in the prior art, photocatalyst use technology, adsorption filter use technology, ozone treatment technology, and the like are eliminated, and only the advantages are applied to the technical concept.

When applying the technical idea of the present application, real-time instantaneous pollutants containing harmful odorous substances such as odor and bacteria of various VOC _S (volatile organic compounds) such as steelmaking chemicals, livestock industry, food waste treatment industry, sewage sludge methane fermentation, etc. Can be processed as

Plasma deodorizing sterilizer of the present invention is a sliding plasma arc generation that generates active atoms, molecules, radicals having strong oxidation and reducing power, and ozone generating means and a mixer mixing ozone and polluted air generated from the ozone generating means The device and the photocatalyst surrounding it may be composed of a reactor coated inside, a photocatalyst for treating untreated residual contaminants, an adsorption filter, and a blower for inducing and discharging the processing gas at a constant pressure and flow rate. Combustion is unlikely to occur in the vicinity, but the technology is capable of low-temperature combustion because of the catalytic role of oxygen radicals by ozone.

In the plasma reaction, high-energy electrons generated by the arc itself decompose and ionize hydrocarbon components of nitrogen, oxygen, moisture, ozone, and pollutant gases in the polluting gas, and have very short lifespan (less than 0.7 ms) and very powerful oxidizing nitrogen. It generates a large amount of plasma active particles such as oxygen, hydrogen atoms and CH and OH RADICAL, and these short-lived plasma active particles undergo relatively complex lifespans through instantaneous complex reactions with various molecules and atoms contained in the contaminated gas. It generates ozone, NO _2, etc.

In this technology, the plasma generator not only produces various ions, atoms, molecules, radicals, etc. to remove contaminants, but also generates ultraviolet rays in the arc flame discharge itself having specific energy required to generate active hydroxyl (OH) radicals. Since it does not need a separate UV generator, the TIO ₂ photocatalyst is coated inside the reactor surrounding the arc electrode and the electrode, thereby increasing the amount of OH generated. Compared to the amount of radical formation between LAMP) and the photocatalyst, OH RADICAL can be produced with much higher efficiency, which further enhances the oxidative power by ozone.

In addition, the high concentration of ozone unused in the ozone mixer is easily destroyed by the heat of the plasma arc generator and converted into active oxygen, which increases the oxidation rate of pollutants. Therefore, even if the ozone input gas concentration of the pretreatment process is maximized, It has the effect of easily adjusting the exhaust gas residual ozone concentration to below the safety regulation level.

Here, ozone (O ₃₎ is used to remove odors in a short time, and ozone is mixed with the odor gas from the inlet and introduced into the bottom of the tank through the vertical duct pipe at the center of the tank, which is then passed through the composite media layer and partially. After reducing pollutants and odors, electrons, ionic active atoms, molecules, ultraviolet rays, and OH radicals generated by plasma arcs by plasma catalysis in a plasma reactor with a strong oxidation and decomposition power of several tens of times the ozone oxidation power at the top. It is deodorized and sterilized by active particles, including to be clean gas which is harmless to the human body and discharged into the air. This is a odor treatment or inorganic compound in a food waste treatment process, livestock manure treatment process, methane fermentation device during sewage treatment. Used in many ways, such as odor treatment during incineration It has the effect of providing a new technology that can be used.

In the treatment technology provided herein, the plasma arc discharge unit electrode has the effect of eliminating residual ozone gas by means of spark discharge, as well as sterilizing various bacteria and completely eliminating odors.

Prior to describing the embodiments of the invention for embodying the technical idea of the present application, the terms or words used in the specification or claims of the present application should not be interpreted as being limited to the ordinary or dictionary meanings, and the protection of the present application. The scope should be construed as meanings and concepts corresponding to the technical idea of the present invention, and the examples described herein are only the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present application. It will be appreciated that there may be various equivalents and variations that can replace them in time.

Detailed embodiments in which the malodorous gas is introduced and treated in the deodorizing tower of the present invention and embodiments in which the technical spirit of the present invention are implemented are described in detail with reference to the accompanying drawings.

1 is a cross-sectional view for showing the overall configuration of the deodorizing tower 100 to which the technical idea of the present application is applied, the deodorizing tower 100 to which the technical idea of the present application is applied as shown in the lower portion of the inside of the deodorizing tower. Filled with water up to the surface of the water surface 23, the upper portion of the water surface 23 has a plasma arc discharge portion 7, and the lower portion of the water surface 23 comprises activated carbon, geolite, anthracite, etc. When the odor gas is introduced into the deodorization tower 100 through the odor gas inlet 1, the basic structure of the layer 5 is filled and the odor gas is deodorized. Ozone and odor gas are mixed from the odor gas to the odor gas outlet (4) provided at the bottom of the tank of the deodorization tower. Thereby.

At this time, the odor gas inlet (1) is connected to the pipe from the upper center of the deodorization tower flows into the water layer filled in the lowermost part of the deodorization tower, so that the water-soluble odor and toxic components are dissolved and absorbed primarily by the water dissolution action. In addition, the water from the bottom of the deodorizing tower is extracted by the circulation pump 18 and sprayed at a high pressure through the strainer 26, and additionally exhibits strong dissolving power by dissolving odor components and ozone in the gas and oxidizing water instantaneously. Means to dissolve in may be used.

The water-insoluble odor gas which is not dissolved in the water layer primarily passes through the water and passes through the composite filler layer 5 by the input pressure, so that the adsorption and decomposition reactions are performed secondly, and the composite filler layer 5 is Activated carbon, anthracite, geolite, etc. may be used, and the thickness of the media layer may be relatively different. For example, as a deodorization facility for food waste, treatment capacity: 50㎥ / 1 day. It is possible to install two deodorizing towers of diameter: 6M, height: about 10M, or install 3 units to have one spare facility in case of emergency. At the bottom, a stainless steel fine mesh 5-1 for supporting and supporting the filler is supported by a bracket or the like, and a gravel layer of 2 to 5 cm is laid as a support layer with a particle size of 5 to 10 mm thick at the top thereof. Sand layer of particle size of about 1 ~ 5mm is laid in thickness of 2 ~ 3㎝, and anthracite of particle size of about 5 ~ 10mm is covered in filter layer of about 3 ~ 5cm. As a ion exchange resin, the size of 1 ~ 3mm sized geolite is spread as 2 ~ 5cm for adsorption of heavy metals, etc., and 3 ~ 6cm sized activated carbon of 3 ~ 6cm at the top. Spread for discoloration, deodorization, BOD, COD removal media As may be provided with a composite filter material filling material layer (5).

In this way, the water-soluble component is removed by passing through the water layer at the first stage, and various odorous substances are removed while passing through the composite filter filler layer 5 at the second stage. In the arc discharge unit 7, a tertiary reaction takes place. At this time, a heating reaction and an optical reaction occur, and residual odor gas components that rise to the upper surface of the arc are discharged into the tank by the plasma discharger 6. The temperature in the tank rises to 700 ~ 1,000 ℃ due to the discharge flame in 7), and the plasma reaction is carried out to completely burn off the combustible gas components among the gas components emitting odor as well as to completely decompose residual ozone. Humidifier (8) is controlled by the humidifier (8) through the mist (MIST) injection pipe (9) to control the proper temperature in the supply.

After the plasma reaction is completed by the tertiary reaction, the residual gas is discharged to the atmosphere again through an adsorption filter (11) provided with glass fiber or carbon fiber material. Here, the circulating pump ( 18 is preferably provided to have a spray nozzle pipe 14 for spraying water to the adsorption filter 11 and backwashing and temperature control.

In addition to the above configuration, it is possible to adjust the water supply through the moisture adjustment inlet when temperature control is required in the tank, and the inside of the tank is equipped with liquid glass (SIGHTGLASS) NO1 and NO2 to monitor the inside of the tank and heat thermometer. (10) is provided to check and adjust the conditions and temperature inside the bath.

Therefore, from the above-described technical idea, the present application is a deodorization method for removing odor gas generated during processing or decomposition of various wastes, filling water to the position of the water surface 23 in the middle lower part of the deodorizing tower, and the water surface 23 On the upper side of the deodorizing tower having a basic structure of the structure filled with a plasma arc discharge portion 7 and the composite filler layer (5) consisting of activated carbon, geolite, anthracite, etc. The odor gas is removed by using the odor gas, and the odor gas introduced through the odor gas inlet 1 is mixed in the mixer 3 with ozone introduced from the ozone generator 2 and provided at the bottom of the tank of the deodorization tower. 4) entering the bottom of the deodorizing tower through the water to dissolve the water-soluble components; A second step of adsorbing and removing the odor component through the adsorption and decomposition reaction of the residual gas passed through the first step through the composite filler layer 5 including activated carbon, geolite, anthracite, and the like; A third step in which the residual gas that has passed through the second step rises toward the upper surface of the water surface 23 and burns and combusts combustible gas components among the residual gas components by arc discharge by the plasma discharger 6 in the plasma arc discharge unit 7 ; It can achieve the odor gas deodorizing method comprising a.

In addition, by using the adsorption filter 11 provided with the glass fiber or carbon fiber material, the residual gas component that has passed through the third step may remove the remaining components in case, and discharge the completely clean residual gas to the atmosphere. The effect can be obtained.

In addition, in the present application as a deodorizing device for removing the odor gas, the deodorizing tower 100 has a plasma arc discharge portion 7 in the upper side and has a basic configuration of the composite filler layer 5 is filled in the lower side, The incoming malodorous gas first functions to remove the malodorous gas through the composite media filler layer 5 consisting of activated carbon, geolite, anthracite, etc., and the residual malodorous gas passed through the composite media filler layer 5 is a plasma arc room. In the whole (7) by the flame arc discharge by the plasma discharger (6) the temperature inside the tank rises to 700 ~ 1,000 ℃ and has a basic configuration to completely burn out the combustible gas components of the residual gas components to extinguish, It has an ozone generator (2), a plasma discharger (6), a humidifier (8) and a circulation pump (18), the ozone generator (2) has a warm zone to the odor gas flowing through the odor gas inlet (1) To send the malodorous gas to the malodorous gas outlet 4 provided in the lower portion of the tank of the deodorization tower, and the plasma discharger 6 is the combustible gas among the residual gas components by the arc discharge in the plasma arc discharge unit 7 in the tank. The humidifier 8 functions to control the humidification amount through the mist (MIST) injection pipe (9) to control the proper temperature in the tank during the plasma reaction, and the circulation pump (18) is deodorizing tower. It is possible to provide a odor gas deodorizing device provided with an auxiliary facility for circulating the water to use the water in the lower part of the tank for warming or backwashing in the tank.

Other deodorizing tower 100 shown in FIG. 1 is a water inlet valve 30, water spray nozzles (14, 21), pressure cage, manhole, liquid gauge for adjusting the water level other than the configuration of the features described above Although detailed parts are shown, these are parts or devices that are all used in a conventional pressure tank, and thus, further detailed explanation is not required. The sliding surface of the plasma arc electrode and the inside of the arc reactor with the photocatalyst are coated. The arc generator can be used by obtaining a plasma arc generator having a photocatalyst coating surface by means of spraying and coating TiO ₂ (titanium dioxide) photocatalyst powder by mixing with an adhesive (Binder).

The technical idea of this application is a deodorization facility for food waste treatment capacity: 50㎥ / 1 day. If the deodorization tower is installed with two deodorization towers with diameters of 6M and heights of about 10M, the odor gas is based on the odor gas with a odor concentration of about 1000 ppm. As a result of analyzing the emitted gas, it was confirmed that the hydrogen sulfide 0.2 ppm, methyl mer cuptan 0.01 ppm, methyl sulfide 0.2 ppm, methyl disulfide 0.1 ppm, ammonia 3.0 ppm, trimethylamine 0.07 ppm to increase the deodorizing efficiency was completed.

Therefore, the technology of the present application can be used to remove polluting gases in a short time in a facility that processes odorous odors and bacteria such as various VOC _S (volatile organic compounds) produced during fermentation chemistry, animal husbandry, food waste treatment industry or sewage sludge methane fermentation. It is expected to achieve the purpose of deodorization deodorization that also serves as a sterilization function.

1 is a cross-sectional view of the sterilization and odor deodorizing apparatus according to the present invention

******** Explanation of symbols for the main parts of the drawing ********

1: Odor gas inlet 2: Ozone generator

3: gas and ozone mixer 4: inlet gas outlet

5: filler 6: plasma discharger

7: plasma arc discharge unit 8: humidifier

9: mist spray pipe 10: thermal measuring thermometer

11: adsorption filter 12: exhaust fan

13: High pressure odor gas inlet 14: Adsorption filter backwash spray nozzle

15: pressure gauge 16: safety valve

17: sample cock 18: circulation pump

19: deodorization tank bottom stirring water return piping 20: unit deodorizer body

21: circulation spray nozzle 22: final sludge discharge valve

23: level 24: manhole 1

25: manhole 2 26: strainer (srrainer)

27: face gauge 1 28: face gauge 2

29: atmospheric emission gas 30: water inlet valve for moisture control

Claims (4)

In the deodorization method to remove the odor gas generated during the treatment or decomposition of various wastes, Fill the water to the location of the water surface 23 in the middle lower part of the deodorizing tower, and have a plasma arc discharge portion 7 at the upper portion of the water surface 23 and an activated carbon, geolite, anthracite layer at the lower portion of the water surface 23. Remove the odor gas by using a deodorizing tower having a basic configuration of the structure filled with the composite filler layer (5) consisting of, The odor gas introduced through the odor gas inlet 1 is mixed with ozone introduced from the ozone generator 2 in the mixer 3 and is provided at the bottom of the deodorization tower through the odor gas outlet 4 provided at the bottom of the tank of the deodorization tower. A first step of dissolving the water-soluble component by flowing into the water; A second step of adsorbing and removing the odor component through the adsorption and decomposition reaction of the residual gas passed through the first step through the composite filler layer 5 including activated carbon, geolite, and anthracite; A third step in which the residual gas that has passed through the second step rises toward the upper surface of the water surface 23 and burns and combusts combustible gas components among the residual gas components by arc discharge by the plasma discharger 6 in the plasma arc discharge unit 7 ; Odor gas deodorizing method comprising a. The method of claim 1, Odor gas deodorizing method further comprises a fourth step of releasing the residual gas component passed through the third step to the atmosphere via the suction filter (11). In the deodorizing device for removing the odor gas generated during the processing or decomposition of various wastes, Deodorizing tower 100 has a plasma arc discharge portion (7) in the upper side and a basic configuration of the composite filler layer (5) is filled in the lower side, the incoming odor gas is activated carbon, geolite, anthra first It functions to remove odorous gas through the composite filler layer 5 composed of the site layer, and residual odorous gas passed through the composite filler layer 5 is sparked by the plasma discharger 6 at the plasma arc discharge unit 7. The temperature inside the tank rises to 700 ~ 1,000 ℃ by arc discharge, and has the basic configuration to completely burn out the combustible gas component among the residual gas components and to extinguish it. It has an ozone generator (2), a plasma discharger (6), a humidifier (8) and a circulating pump (18) as an accessory facility. The ozone generator (2) mixes the warm zone with the odor gas introduced through the odor gas inlet (1). To send the malodorous gas to the malodorous gas outlet 4 provided in the lower portion of the tank of the deodorization tower, and the plasma discharger 6 is the combustible gas among the residual gas components by the arc discharge in the plasma arc discharge unit 7 in the tank. The humidifier 8 functions to control the humidification amount through the mist (MIST) injection pipe (9) for adjusting the proper temperature in the tank during the plasma reaction, and the circulation pump (18) is used to deodorize the deodorizing tower. Odor gas deodorizing device is provided, including an accessory to the function of circulating the water to use the water in the lower part of the tank for the purpose of temperature control or backwashing in the tank. The method of claim 3, Odor gas deodorizing apparatus characterized in that the plasma arc electrode surface and the arc reactor is a sliding arc generating device coated with a photocatalyst.

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