KR102241190B1 - Deodorant including activated carbon manufactured by adsorbing microorganisms from coal ash - Google Patents

Abstract

The present invention relates to a deodorant containing activated carbon prepared by adsorbing microorganisms to coal ash, and more specifically, to a deodorant containing activated carbon, which can reduce odor gas generated in livestock facilities with high efficiency and has stability for humans and livestock.

Description

DEODORANT INCLUDING ACTIVATED CARBON MANUFACTURED BY ADSORBING MICROORGANISMS FROM COAL ASH}

The present invention relates to a deodorant containing activated carbon prepared by adsorbing microorganisms on coal ash, and more particularly, it is possible to reduce odor gas generated in livestock facilities with high efficiency, and has stability to humans and livestock, activated carbon It relates to a deodorant comprising a.

Currently, livestock farms and populations are decreasing, but as meat consumption increases and related science develops, farming facilities are being scaled-up, causing many problems due to odors generated by livestock farms. As described above, in order to improve the living environment of rural and livestock farms, and to prevent the contraction of the livestock sector, there is a national need for interest in the development of odor removal technology.

The odor generated in livestock facilities is mainly caused by decaying and decomposing organic matter of animals or plants, and basic components such as ammonia and amines, and acidic components such as hydrogen sulfide and mercaptane are used. It can be said to be the main cause.

Among them, ammonia is a major component of odor that has a very bad smell. When we ingest protein and get energy by decomposing it, ammonia is produced as a waste product. Because ammonia is a toxic substance, if it stays in the body for a long time Dangerous. Therefore, mammals and amphibians, including humans, convert ammonia into a non-toxic element, store it in the kidneys, and release it out of the body in the form of urine or sweat. In addition, reptiles, birds, and insects convert ammonia into uric acid and discharge it. In the case of animals that store waste for a while and excrete them, such toxic ammonia is converted into less toxic substances and discharged.

These odorous gases adversely affect the air environment in rural areas and the health of residential personnel, and air purification facilities are required in the livestock industry in accordance with the reinforced Air Environment Conservation Act. In particular, ammonia gas has a high affinity for water, and in particular, when it comes into contact with the moist surface of the nasal cavity, it irritates, and this ammonia is adsorbed to the dust particles and reaches the deep part of the lungs, causing symptoms of headache, vomiting, and loss of appetite. It can have serious health effects.

Accordingly, a deodorant using silica gel, activated clay, and microorganisms has been developed, but these conventional methods have limitations in industrialization and commercialization because it is difficult to effectively decompose the odor gas.

Therefore, there is a need for development of a new deodorant that can effectively remove serious odors generated from landfills of animals killed by foot-and-mouth disease or AI, as well as livestock manure.

Republic of Korea Patent Publication No. 10-2086608

The present invention is to solve the above problems, and it is very easy to remove odor gas with high efficiency simply by periodically spraying it on landfill sites killed by livestock contagious diseases as well as livestock farms where livestock is raised. And to provide a deodorant that can contribute to the prevention of environmental pollution.

The above and other objects and advantages of the present invention will become apparent from the following description of preferred embodiments.

The object is, 10 to 40% by weight of granular activated carbon manufactured using coal ash; And 50 to 80% by weight of powdered impregnated activated carbon; containing, can be achieved by a deodorant.

Specifically, the particle diameter of the granular activated carbon may be characterized in that the range of 100 to 400 mesh.

Specifically, the particle diameter of the powdered impregnated activated carbon may be characterized in that the range of 50 to 150 mesh.

Specifically, the powdered impregnated activated carbon may be characterized in that an impregnated material including one or more alkali metal hydroxides or carbonates is evenly impregnated and contained in the activated carbon.

Preferably, the powdered impregnated activated carbon includes lithium hydroxide, sodium hydroxide, potassium hydroxide, lithium carbonate, sodium carbonate, potassium carbonate, sodium hydrogen carbonate, and at least one impregnated material made of a combination thereof and evenly impregnated and contained in the activated carbon. It can be characterized by that.

The deodorant according to the present invention has a high specific surface area and can efficiently remove odor gas generated in livestock farms where livestock is raised, as well as landfills that have been killed by livestock infectious diseases, and deodorization is possible even with a periodic spraying method. Therefore, it is easy to manage livestock facilities and has stability for humans and livestock, so it can be used environmentally.

In addition, according to the present invention, it is possible to suppress the increase in temperature due to carbon dioxide generation by absorbing carbon dioxide generated in livestock facilities, and exhibit an antibacterial effect to reduce the probability of occurrence of livestock infectious diseases.

However, the effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1A to 1E are images of livestock facilities measuring the deodorizing performance of the deodorant according to embodiments of the present invention.
2 is a graph showing a measurement result of ammonia deodorization performance of a deodorant according to embodiments of the present invention.
3A to 3D are graphs showing the measurement results of ammonia deodorization performance of the deodorant according to embodiments of the present invention for each finishing pig and sow.
4 is a graph showing a result of measuring hydrogen sulfide deodorization performance of a deodorant according to embodiments of the present invention.
5 is a graph showing a thermogravimetric analysis graph of a deodorant according to embodiments of the present invention.

Hereinafter, the present invention will be described in detail with reference to embodiments of the present invention and drawings. These examples are only illustratively presented to explain the present invention in more detail, and it will be apparent to those of ordinary skill in the art that the scope of the present invention is not limited by these examples. .

In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, and in case of conflict, the present specification including definitions The description of will take precedence.

In order to clearly describe the invention proposed in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification. And, when a certain part "includes" a certain component, this means that other components may be further included rather than excluding other components unless specifically stated to the contrary. In addition, the "unit" described in the specification means one unit or block that performs a specific function.

In each step, the identification code (first, second, etc.) is used for convenience of explanation, and the identification code does not describe the order of each step, and each step does not clearly describe a specific sequence in the context. It may be implemented differently from the order specified above. That is, each of the steps may be performed in the same order as the specified order, may be performed substantially simultaneously, or may be performed in the reverse order.

Hereinafter, embodiments and examples of the present application will be described in detail with reference to the accompanying drawings. However, it may not be limited to these embodiments and examples and drawings of the present application.

One aspect of the present application, 10 to 40% by weight of granular activated carbon manufactured using coal ash; And it provides a deodorant containing; 50 to 80% by weight of powdered impregnated activated carbon.

In one embodiment, the granular activated carbon manufactured using the coal ash, drying the coal ash; Carbonizing the dried coal ash; Heating and activating the carbonized coal ash; Pulverizing the activated coal ash; And it may be obtained by the step of obtaining granular activated carbon by spraying microorganisms on the pulverized coal ash and adsorbing it.

Specifically, the drying of the coal ash may be performed by heating the coal ash in a drying furnace until moisture contained in the coal ash is dried by about 80% or more.

Next, the step of carbonizing the dried coal ash is carbonized by heat by putting the coal ash from which moisture has been removed into a combustion furnace and heating it to a temperature range of about 200°C to about 500°C under an inert gas, specifically nitrogen gas. It may be to let you do. In this case, when the heating temperature is less than about 200° C., carbonization may not be sufficiently completed, and when the heating temperature exceeds about 500° C., the deodorizing effect of the prepared granular activated carbon may be reduced.

Next, the carbonized coal ash may be activated by heating with water vapor at a temperature higher than the carbonization temperature range, for example, about 700°C to 900°C to develop micropores. If the activation is performed at less than about 700°C, the activation may not be sufficiently performed, and when it exceeds about 900°C, the deodorizing effect of the produced granular activated carbon may be reduced.

Next, the activated coal ash is pulverized and then microbes are sprayed to adsorb the microorganisms to the pulverized coal ash to produce granular activated carbon. In this case, the pulverization may be performed using a pulverizer so that the activated coal ash has a particle diameter of about 100 to about 400 mesh.

In one embodiment, the type of microorganism adsorbed on the coal ash may be used without limitation, for example, the microorganism is from the group consisting of photosynthetic bacteria, actinomycetes, Pseudomonas aeruginosa, lactic acid bacteria, filamentous fungi, algae, and combinations thereof. Aerobic microorganisms comprising at least one selected; Anaerobic microorganisms including at least one selected from the group consisting of Escherichia coli, Bacillus bacillus, yeast, Pseudomonas genus, Salmonella genus, and combinations thereof; Or it may be characterized in that it is a secondary active microorganism comprising at least one selected from the group consisting of Penicillium bacteria, Neurospora, and combinations thereof, but is not limited thereto.

In one embodiment, the particle diameter of the granular activated carbon manufactured using the coal ash may be in the range of about 100 to 400 mesh. If the particle diameter of the granular activated carbon is less than about 100 mesh or exceeds about 400 mesh, the deodorizing effect of the granular activated carbon may be reduced.

In one embodiment, the powdered impregnated activated carbon may be characterized in that the impregnated material including one or more alkali metal hydroxides or carbonates is evenly impregnated and contained in the activated carbon. For example, the alkali metal hydroxide or alkali metal carbonate may be at least one selected from the group consisting of lithium hydroxide, sodium hydroxide, potassium hydroxide, lithium carbonate, sodium carbonate, potassium carbonate, sodium hydrogen carbonate, and combinations thereof. And, preferably, it may mean a powder-type impregnated activated carbon in which lithium hydroxide is evenly impregnated and included in the activated carbon.

In one embodiment, the powder-type impregnated activated carbon comprises: injecting activated carbon into an aqueous solution containing the impregnated material; Heating and stirring the aqueous solution containing the impregnated material and activated carbon to adsorb the impregnated material to the activated carbon; And drying and pulverizing the activated carbon to which the impregnated material is adsorbed.

For example, in the powdered impregnated activated carbon, activated carbon is added to an aqueous lithium hydroxide solution, and the lithium hydroxide aqueous solution into which the activated carbon is added is heated at a temperature range of about 50°C to 150°C, while stirring at a speed of about 50 to about 500 rpm. Lithium hydroxide is adsorbed on the activated carbon, and the activated carbon on which the lithium hydroxide is adsorbed is evaporated and dried for about 1 hour to about 12 hours in a dryer in a temperature range of about 60°C to about 120°C. It may be obtained by grinding to have a particle diameter of about 150 mesh.

In one embodiment, the particle diameter of the powdered impregnated activated carbon may range from about 50 to 150 mesh. If the particle diameter of the powdered impregnated activated carbon is less than about 50 mesh or exceeds about 150 mesh, the deodorizing effect of the powdered impregnated activated carbon may be reduced.

In one embodiment, the granular activated carbon manufactured using the coal ash may be included as about 10 to about 40% by weight of the deodorant, and the powdered impregnated activated carbon may be included as about 50 to about 80% by weight of the deodorant. The composition ratio of the granular activated carbon and the powder-type impregnated activated carbon is derived to maximize the deodorizing performance of the deodorant.If the granular activated carbon and the powder-type impregnated activated carbon are included in less than the weight% or more than the weight% , The deodorizing performance of the manufactured deodorant may drop sharply.

In one embodiment, the deodorant is not particularly limited as long as the deodorant is used for the purpose of removing odor, and may be used universally without limitation to various objects. The deodorant according to the present invention includes livestock facilities including breeding grounds for chickens, pigs, cattle, etc., cooking facilities such as kitchens, fisheries facilities such as aquaculture, fish tanks, furniture products such as wardrobes, electrical/electronic products such as refrigerators, and It can be used for indoor living spaces, etc.

In one embodiment, the deodorant may additionally include other ingredients to maximize product compatibility and deodorizing effect, but is not limited thereto.

In one embodiment, the deodorant according to the present invention may have a formulation such as a solid, a liquid, or a paste having a predetermined viscosity, and the formulation is not particularly limited. For example, the deodorant may have a solid dosage form, but may have a powder shape or a molded body shape having a predetermined shape. The molded article may have, for example, a shape such as a pellet or a flat plate, or may have a three-dimensional shape other than these. In this case, the molded body may be composed of a porous body having a plurality of micropores formed on at least a surface thereof.

In one embodiment, the deodorant may further include a solvent, and may have a liquid formulation or a paste formulation in which the components are uniformly dispersed in a solvent.

In one embodiment, the deodorant may further include tourmaline powder. Tourmaline is one of the boron silicate minerals also called tourmaline. It has a hexagonal crystal form and the crystal itself generates electricity.

In one embodiment, the tourmaline powder forms anions and a weak current, so that the deodorant including the tourmaline powder may exhibit excellent deodorization and chlorine removal effects.

In one embodiment, the tourmaline powder may be pulverized to have a particle diameter of about 1,000 to about 3,000 mesh. When the particle diameter of the tourmaline powder is less than about 1,000 mesh, the deodorizing effect of the deodorant may be reduced, and when the particle diameter of the tourmaline powder exceeds about 3,000 mesh, the mixing property with other components may be impaired. It is preferably pulverized to have a particle diameter of about 1,000 to about 3,000 mesh.

In one embodiment, the tourmaline powder may be included in about 1 to about 10% by weight. For example, when the tourmaline powder is included in an amount of less than about 1% by weight, the effect of deodorizing and removing chlorine by the tourmaline powder may decrease. In addition, as the content of the tourmaline powder increases, the deodorizing performance of the deodorant may be improved, but when it exceeds about 10% by weight, the deodorization performance may tend to decrease, so the tourmaline powder is about 1 to about 10 weight percent. It is preferably included in %.

In one embodiment, the deodorant may further include persimmon leaf extract. The persimmon leaf extract means obtained by harvesting the leaves of persimmon trees, one of the temperate fruit trees peculiar to East Asia, and extracting them with hot water at a temperature ranging from about 50°C to about 80°C using ethanol.

In one embodiment, the persimmon leaf extract may contain catechins or flavonoids as an active ingredient, and accordingly, the deodorant containing the persimmon leaf extract can exert a strong deodorizing and deodorizing effect against odor gases such as ammonia, amines, and aldehydes. In addition, since it is harmless to the human body, it is possible to impart human stability to the deodorant.

In one embodiment, the persimmon leaf extract may be included in an amount of about 0.1 to about 5% by weight based on the total amount of the deodorant. If the persimmon leaf extract is contained in an amount of about 0.1% by weight, human stability and deodorizing and deodorizing effects against odor gases may not be sufficiently exhibited, and if it exceeds about 5% by weight, mixing with other ingredients may be impaired. have.

In one embodiment, the deodorant may further include a Morus root extract. The mulberry root extract means obtained by hot water extraction at a temperature range of about 50°C to about 80°C using ethanol from the roots of a mulberry tree, one of the dicotyledonous nettles, living in temperate and subtropical regions.

In one embodiment, the Morus root extract may exhibit a deodorizing effect against ammonia by including tannins and polyphenols as active ingredients, and by including kuwanon A-kuwanon H as an active ingredient, it has an antibacterial effect. Can be indicated. Accordingly, when the Mulberry root extract is additionally included as a constituent of a deodorant, it exhibits an antibacterial effect against harmful bacteria that may be contained in coal ash, thereby reducing the effect of infectious diseases in livestock facilities, and is harmless to the human body. It can impart human body stability to the deodorant, and can effectively remove ammonia gas.

In one embodiment, the Morus root extract may be included in an amount of about 0.1 to about 5% by weight based on the total amount of the deodorant. If the mulberry root extract is contained in an amount of about 0.1% by weight, the antibacterial and deodorizing effect may not be sufficiently exhibited, and when it exceeds about 5% by weight, the blendability with other ingredients may be inhibited.

In one embodiment, the deodorant may further include a lithium compound-containing carbon dioxide adsorbent. For example, the carbon dioxide adsorbent is one comprising _{a lithium compound selected from the group consisting of Li 2} O, Li ₂ CO ₃ , LiOH, LiNO ₃ , LiCl, LiBr, and combinations thereof, and magnesium oxide (MgO). In particular, the carbon dioxide adsorbent may include LiNO ₃ -MgO, which is a mixture of LiNO ₃ and magnesium oxide.

In one embodiment, the deodorant further includes a lithium compound-containing carbon dioxide adsorbent, thereby suppressing an increase in temperature due to carbon dioxide generation in livestock facilities to reduce the probability of occurrence of livestock infectious diseases such as African swine fever and bird flu in summer. In addition, it can help protect the environment by preventing climate change caused by excessive greenhouse gas emissions.

In one embodiment, the carbon dioxide adsorbent is a lithium compound salt and magnesium oxide selected from the group consisting _{of Li 2} O, Li ₂ CO ₃ , LiOH, LiNO _{3, LiCl, LiBr, and combinations thereof.} It may be manufactured. For example, the carbon dioxide adsorbent may be prepared by dispersing or dissolving a lithium compound salt in an organic solvent, mixing it with magnesium oxide, and firing at a temperature range of about 300°C to about 500°C.

In one embodiment, the element ratio of lithium and magnesium in the carbon dioxide adsorbent may be Mg:Li = about 1: about 1 to 5. For example, as the element ratio of lithium and magnesium in the carbon dioxide adsorbent changes, the adsorption rate of carbon dioxide may change. Specifically, when the element ratio of lithium increases, the adsorption rate of carbon dioxide may increase.

In one embodiment, the carbon dioxide adsorbent may be included in an amount of about 0.01 to about 3% by weight of the total deodorant. If the carbon dioxide adsorbent is included in an amount of less than about 0.01% by weight, the carbon dioxide adsorption effect may not be sufficiently exhibited, and if it is included in an amount exceeding about 3% by weight, manufacturing cost may be excessively increased.

In one embodiment, the deodorant may further include alum powder. The alum is a complex salt of aluminum sulfate and a monovalent metal sulfate, has excellent deodorizing effect and exhibits weak acidity, and thus can exert an antibacterial effect by destroying the cell walls of bacteria through dehydration.

In one embodiment, when the alum powder is additionally included as a constituent of a deodorant, it exhibits an antibacterial effect against harmful bacteria that may be contained in coal ash, thereby reducing the effect of infectious diseases in livestock facilities, and harmless to the human body. Thus, it is possible to impart stability to the human body with respect to the deodorant, and it is possible to effectively remove odor gases including ammonia.

In one embodiment, the size of the alum powder may be easily mixed with other components of the deodorant by having a size in the range of 1 to about 10 μm. If the size of the alum powder is less than about 1 μm, it may be easily blown away by wind or the like, and may reduce the deodorizing effect, and if it exceeds about 10 μm, the miscibility with other ingredients may be inhibited.

In one embodiment, the alum may be included in an amount of about 0.1 to about 5% by weight based on the total amount of the deodorant. If the alum is contained in an amount of less than about 0.1% by weight, the antibacterial and deodorizing effect may decrease, and when it exceeds about 5% by weight, inflammation may occur in livestock in livestock facilities.

Hereinafter, the configuration of the present invention and effects thereof will be described in more detail through specific examples and comparative examples. However, the present examples are for explaining the present invention in more detail, and the scope of the present invention is not limited to these examples.

[Example 1]

First, the coal ash is dried in a drying furnace for about 12 hours or more until 80% or more of the moisture contained in the coal ash disappears. The well-dried coal ash was put into a combustion furnace at 450° C. and carbonized by heating for 30 minutes while supplying _{N 2 gas under a 2 ml/min atmosphere.} The carbonized coal ash was activated by raising and lowering the temperature of the combustion furnace to 800° C. and reheating it with steam. The activated coal ash was cooled at room temperature for more than 24 hours and then pulverized into 150 mesh using a grinder. Next, the pulverized coal ash was sufficiently sprayed with tertiary distilled water in which Pseudomonas putida (ATCC17484, Bioresource Center), one of the permeable anaerobic microorganisms, was suspended, thereby obtaining granular activated carbon in which the microorganisms were adsorbed on the surface of the activated carbon.

Next, activated carbon was added to an aqueous solution of lithium hydroxide (LiOH) and heated and stirred at a speed of 350 rpm in a temperature range of 120° C. to adsorb lithium hydroxide on the activated carbon. The adsorbed activated carbon was evaporated to dryness in a dryer at 85° C. for 10 hours, and then pulverized into 60 mesh using a grinder to obtain powder-type impregnated activated carbon.

The obtained granular activated carbon and powdered impregnated activated carbon were mixed as shown in Table 1 to prepare a deodorant, and the prepared deodorant was named Example 1.

[Examples 2 to 3]

Prepared in the same manner as in Example 1, but mixed with the constituents of Table 1 to prepare each deodorant, and the prepared deodorants were named Examples 2 and 3.

Composition (% by weight) Example 1 Example 2 Example 3 Granular activated carbon (150 mesh) 35.00 28.50 26.50 Powder type impregnated activated carbon (60 mesh) 65.00 58.50 56.50 Tourmaline powder (1,700 mesh) - 7.50 7.50 Persimmon leaf extract - 2.75 2.75 Mulberry root extract - 2.75 2.75 Carbon dioxide adsorbent (LiNO ₃ -MgO) - - 1.55 Alum powder (average size: 6.5 μm) - - 2.45 Sum 100.00 100.00 100.00

[Comparative Example]

A deodorant was prepared in the same manner as in Example 1, but not including powdered impregnated activated carbon and only granular activated carbon using coal ash, and this was named as a comparative example.

[Experimental Example 1: Evaluation of ammonia deodorizing ability-(1)]

In order to confirm the deodorizing performance of the deodorants prepared in the above Examples and Comparative Examples, ammonia gas was supplied at 200 mg/m ^{2 /min in an 8 m 3} volume chamber, and ammonia gas after 30 minutes after the deodorant was added. The concentration was measured and evaluated. The measurement is shown in FIG. 2 by measuring the mass of discharged ammonia per unit time and area using a dynamic flux chamber.

[Experimental Example 2: Evaluation of ammonia deodorizing ability-(2)]

In order to check whether the deodorant prepared in the above Examples and Comparative Examples functions as a deodorant even in an actual environment, the deodorant was placed in each finishing pig and pig shed for each sow for about 2 hours for a pig farm located in Geumsan-gun, Chungcheongnam-do. The ammonia gas concentration of was measured and evaluated. In the same way, a dynamic flux chamber was used for measurement.

2 is a graph showing the measurement results of the ammonia gas concentration using the deodorant of Examples 1 to 3 and Comparative Examples, and FIG. 3 is a graph showing the measurement results of ammonia deodorization performance in an actual pig farm for each finishing pig and sow. 2 and 3, it was confirmed that the deodorant according to the embodiment of the present invention exhibited high ammonia deodorization performance in both the ammonia chamber and the actual pig farm compared to the comparative example.

[Experimental Example 3: Evaluation of hydrogen sulfide deodorization ability]

In order to confirm the deodorizing performance of the deodorants prepared in the above Examples and Comparative Examples, the deodorizing performance of hydrogen sulfide gas was measured according to KFIA-FI-1004. The gas concentration was measured in a gas detection tube, and the measured concentration of hydrogen sulfide is shown in FIG. 4 based on ppm. As shown in FIG. 4, it was confirmed that the deodorant according to the embodiment of the present invention exhibited higher hydrogen sulfide deodorization performance compared to the comparative example.

[Experimental Example 4: Measurement of carbon dioxide absorption rate]

The carbon dioxide absorption rate of the deodorants prepared in the above examples was measured through thermogravimetric analysis (TGA). _{5 is a graph measuring the carbon dioxide absorption behavior of the deodorant for each temperature in a CO 2} atmosphere using a thermogravimetric analyzer. In the case of the deodorant of Example 2 including a carbon dioxide adsorbent, the average temperature range of a livestock facility compared to Example 1 The carbon dioxide absorption rate was significantly increased to about 68% near the internal temperature of 15°C to 45°C, and in the case of Example 3, which further included additional components together with a carbon dioxide adsorbent, about 88% of carbon dioxide was significantly increased compared to the result of Example 2. It was confirmed that the absorption rate was shown.

In the present specification, only a few examples of various embodiments performed by the present inventors are described, but the technical spirit of the present invention is not limited thereto or is not limited thereto, and may be modified and variously implemented by those skilled in the art.

Claims (3)

10 to 40% by weight of granular activated carbon manufactured using coal ash and having a particle size of 100 to 400 mesh;
Lithium hydroxide is evenly impregnated and contained in the activated carbon, 50 to 80% by weight of powdered impregnated activated carbon having a particle size of 50 to 150 mesh;
1 to 10% by weight of tourmaline powder having a particle size of 1,000 to 3,000 mesh;
0.1 to 5% by weight of persimmon leaf extract; And
0.1 to 5% by weight of mulberry root extract;
Containing, as a deodorant,
The granular activated carbon,
Heating and drying until the moisture contained in the coal ash is dried by about 80% or more;
Carbonizing the dried coal ash by heating it in a temperature range of 200°C to 500°C under nitrogen gas;
Activating the carbonized coal ash by heating it with steam at a temperature range of 700°C to 900°C;
Pulverizing the activated coal ash to have a particle diameter of 100 to 400 mesh; And
It is obtained by the step of obtaining granular activated carbon by spraying and adsorbing microorganisms on the pulverized coal ash,
The powdered impregnated activated carbon,
Adding activated carbon to an aqueous lithium hydroxide solution;
Heating and stirring the lithium hydroxide aqueous solution and activated carbon at a temperature ranging from 50° C. to 150° C. to adsorb lithium hydroxide on the activated carbon; And
It is obtained by drying the activated carbon adsorbed with lithium hydroxide for 1 to 12 hours and pulverizing to have a particle diameter of 50 to 150 mesh,
deodorant. delete delete

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