KR102132577B1 - Odor reduction composition and method for manufacturing the same - Google Patents

Abstract

The present invention relates to a method for manufacturing an odor reduction composition to effectively reduce odor material generated from a cattle shed, a sewage plant, a food waste treatment plant, and the like, and an odor reduction composition thereof. According to the present invention, the method comprises the following steps of: (S1) processing sericite ore to manufacture sericite powder with a particle size of 100 to 1,000 nm; (S2) extracting a humus extract with CEC from humus soil; and (S3) mixing the sericite powder and the humus extract.

Description

Odor reduction composition and method for manufacturing the same}

The present invention effectively reduces odor substances generated in livestock houses, sewage treatment plants, food waste treatment plants, manure treatment plants, etc., and at the same time enables mass production to reduce costs. It is about.

In livestock farms, sewage treatment plants, food waste treatment plants, and manure treatment plants, many odors are generated in the decomposition process of organic waste, causing complaints from nearby residents.

In general, substances that cause odors exist in the form of cations generated in the oxidation process, and most of the odors originate from nitrogen-based compounds such as ammonia and amine gas. For this reason, the conventional malodor reduction technology collects and reduces malodor-causing cations, chemical methods using substances that react with malodor-causing ions, physical methods of destroying malodor-causing ions using plasma, and sensuality by mixing with the smell of cations A method for reducing the amount of odor detected by a method, a biological method using aerobic microorganisms, and the like have been proposed.

Specifically, Korean Patent Registration No. 771,049 (Patent Document 1) includes magnesium hydroxide; At least one hydroxide selected from the group consisting of sodium hydroxide, potassium hydroxide and calcium hydroxide; A dispersant having a carboxyl group; A slurry composition for reducing odors comprising water; is disclosed. However, the slurry composition for reducing odor of Patent Literature 1 has a disadvantage in that a facility installed in a odor-causing place containing a large amount of hydroxide is corroded or the odor reduction rate is lowered.

The present invention was created to meet the above needs, and an object of the present invention is to provide a method for manufacturing a malodor reduction composition having an excellent malodor reduction effect and a malodor reduction composition prepared thereby.

In order to achieve the above object, the method for manufacturing a malodor reduction composition of the present invention comprises the steps of preparing a mica powder having a particle diameter of 100 to 1,000 nm by processing a mica stone (S1); Extracting humus extract having CEC (cationic substitution ability) from humus soil (S2); And a step (S3) of mixing the mica powder and a humus extract;
The step (S1) of preparing the mica powder is (S1-1) of pulverizing the mica-like gemstone in the form of a lump, and receiving the mica-crushed material in a container, and 60-80 in the container. After mixing the water heated to ℃ 12 to maintain for 12 to 36 hours, so that the mica powder can absorb water (S1-2), and the inside of the container maintains a temperature environment of 500 ~ 900 ℃ It characterized in that it comprises a step (S1-3) of irradiating the microwave whose output is controlled as much as possible for 3 hours or more to pulverize the mica powder absorbed by water.

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In the present invention, further comprising the step of opening the container, so that the water content of the mica powder 10 to 50% (S1-4).

In the present invention, water is placed on the bottom of the container by accommodating humus in the container and mixing the water heated to 60 to 80°C in the container at a volume of 5 to 20 times the humus to maintain for 12 to 36 hours. Sedimenting a humus soil having a larger specific gravity and having a higher specific gravity, separating a suspension containing a polymer organic substance contained in the humus soil and floating microparticles of humus soil on the upper side of the humus soil (S2-1); And filtering with a filter to obtain a primary extract from which humus microparticles suspended in suspension are obtained (S2-2).

In the present invention, by evaporating the primary extract to obtain a secondary extract having a high concentration of a polymer organic material as a main component (S2-3), and by retaining the secondary extract for more than 36 hours to precipitate the remaining fine particles , Obtaining a liquid extract composed of a high-purity polymer organic material on the upper side of the precipitate of the fine particles (S2-4).

In the present invention, further comprising the steps of mixing the aqueous solution of sodium chlorite in a volume ratio of 3 to 10% based on the liquid extract, followed by stirring for 2 hours or more to neutralize (S2-5).

In the present invention, a step of mixing the aqueous solution of citric acid in a volume ratio of 3 to 10% based on the result of the neutralization reaction, and stirring for at least 12 hours (S2-6) in the neutralization reaction result obtained in the step (S2-5) It includes more.

In order to achieve the above object, the malodor reduction composition of the present invention is characterized in that produced by any one of claims 2 to 7.

According to the malodor reduction composition of the present invention, the interface of the nano-processed silkworm powder is charged with a negative charge to electrically adsorb the malodor molecules (substances) of cations, so that aerobic microorganisms can easily ingest malodor molecules, and accordingly Can be effectively reduced.

In addition, numerous micropores formed in the mica powder contained in the malodor reduction composition retain oxygen to slow the propagation of anaerobic microorganisms, facilitate the propagation of aerobic microorganisms using odor substances as a food source, and especially for aerobic microorganisms to ingest. As it has an easy particle size, it is possible to effectively supply minerals necessary for the formation of biological tissues.

In addition, the humus extract contained in the malodor reduction composition has a very high CEC, becomes a relatively low-molecular state by the reaction of chlorine compounds, and a large amount of OH- and COOH- groups are distributed at the molecular bond ends to adsorb cationic malodor molecules electrically and humus. Organic acids such as humic acid and herbicidal acid contained in the extract contain natural antibiotics such as streptomycin, which can prevent pathogens and eliminate the cause of odor caused by decay.

And in the malodor reduction wet cleaning tower equipment used in most malodor emission workplaces, when the malodor reduction composition of the present invention is supplied through piping for spraying mist into the wet washing tower, the malodor reduction composition inside the wet washing tower It functions as a condensation nucleus that adsorbs high-concentration malodor-containing water vapor, thereby liquefying the malodor-containing water vapor and recovering it to the washing tank. Therefore, it is possible to prevent the discharge of odor-containing water vapor through the wet cleaning tower, thereby significantly reducing odor complaints.

Hereinafter, a method for manufacturing a malodor reduction composition according to the present invention and a malodor reduction composition prepared thereby will be described in detail.

The malodor reduction composition of the present invention is intended to reduce malodor generated in a livestock barn, a sewage treatment plant, a food waste treatment plant, and a manure treatment plant, and is implemented by mixing a silk powder and a humus extract.

In order to prepare such a malodor reduction composition, a step (S1) of manufacturing a mica powder having a particle diameter of 100 to 1,000 nm, preferably a particle diameter of 300 nm by processing a mica-like gemstone; Extracting humus extract having CEC (cation substitution ability) from humus soil (S2); Characterized in that it comprises a; step (S3) of mixing the mica powder and humus extract.

The cicaline powder is implemented by processing the cicaline ore to a particle size of 100 to 1,000 nm, and by having a nano-scale, it collects odorous substances in the cation form by the characteristics of negative charge generated at the interface of the cicaline powder. In addition, nano-processed sericite powder is formed with numerous micropores, retaining oxygen, and at the same time inhabiting useful microorganisms that decompose organic waste, and oxygen to aerobic microorganisms that feed cationic molecules generated during the organic waste decomposition process. To supply. In addition, minerals are supplied to aerobic microorganisms to strengthen cell tissues, thereby making them excellent in viability.

The humus extract is a generic term for organic substances (organic acids) extracted by removing particle components from humus soils.It collects cationic malodorous substances using high CEC (CATION EXCHANGE CAPACITY) and then serves as a food source for aerobic microorganisms. To disassemble.

Humus is a polymer compound with a molecular weight of 1,000 or more through polycondensation reaction of organic acids, which is not completely decomposed while undergoing a very slow microbial decomposition process due to the cold temperature in the cold tundra region. CEC has 1,300 of humic acid and fulvic acid. As described above, the ability to electrically collect cation odor substances is excellent. The humus used in this example is a peat humus with a pH of 3.5 or less (humic substance, especially humus with pitsmos-moss), which is black like very dark brown or briquette.

In order to implement the step (S1) for preparing the mica powder, a step (S1-1) for preparing the mica powder is performed by pulverizing the mica-shaped gemstone. At this time, the mica powder is preferably in the form of beads with a diameter of about 1 to 2 cm.

The sericite is a clay form produced by hydrothermal action and is a white sericite composed of SiO2, CaO, Al2O3, K2O, Na2O, and the like.

Next, the mica powder is accommodated in a container, and then mixed with water heated to 60-80° C., preferably 70° C. in the container, and maintained for 12 to 36 hours, preferably 24 hours, so that the mica powder is Step (S1-2) is performed to allow water to be absorbed. Here, the vessel is a pressure vessel capable of withstanding high pressure pressure, and a microwave is installed to irradiate the microwave into the vessel.

The water input to the container is 20 to 50 parts by weight of water, preferably 30 parts by weight, based on 100 parts by weight of the mica powder, and in this step (S1-2), the mica powder absorbs water and becomes poor overall. .

Next, the inside of the container is irradiated with microwaves whose output is controlled so as to maintain a temperature environment of 500 to 900°C, preferably 600°C to 800°C, for 3 hours or more, preferably 5 hours or more, and absorbed water. A step (S1-3) of pulverizing the pulverized product is performed. In this step (S1-3), the pressure inside the pressure vessel 10 is increased to 500 Bar or more, and water absorbed by the crushed mica is evaporated to escape outside the container. That is, the water absorbed in the crushed mica by microwaves becomes a high-temperature vapor state, and the pressure of the pressure vessel increases to 500 Bar or more, and the mica particles are micronized by nanoscale by this high pressure.

In step (S1-3), the microwave expands by rapidly heating the moisture absorbed by the mica powder, and also, at a high pressure, the temperature of the mica powder is rapidly increased, and the mica powder has a particle size of 100 to 1,000 nm, preferably It is nano-powdered with micropores of 4 to 6 nm having a particle diameter of 300 nm.

If the temperature inside the pressure vessel 10 in the step (S1-3) is outside the range of 500 to 900°C, and the time for irradiating microwaves is within 3 hours, the mica powder inside the container is a nano-sized powder. It does not decompose and, in particular, micropores are not formed.

Next, the step (S1-4) is performed to open the container so that the water content of the mica powder is 10 to 50%, preferably 30%. This step (S1-4) proceeds by spraying and stirring water into the mist form of the mica powder.

If the moisture content of the mica powder is less than 10%, it scatters like dust and is difficult to use in the post-process. When the water content is more than 50%, it hardens easily to maintain the powder form.

Next, a step (S1-5) of filtering particles larger than the filter holes by performing the filter through the filter is performed. By step S1-5, foreign matter that is larger than the hole of the filter or that is not decomposed into a mica powder is filtered.

Here, the mica powder filtered by the filter preferably has an average particle diameter of 500 nm or less, preferably 300 n or less, and a number of fine pores having a particle diameter of 4 to 6 nm are formed in the mica powder.

For reference, there are foreign substances such as feldspar and wollastonite mixed with feldspar ore, which have a dense tissue structure and cannot absorb water. Therefore, in the step of absorbing water (S1-2), foreign substances such as feldspar or silica cannot absorb water, and accordingly, the above step (S1-3) of expanding particles absorbing water by irradiating microwaves. Even if carried out, the foreign matter is not pulverized and remains crushed. This foreign material is filtered in step (S1-5), and eventually a high purity silkworm powder is obtained.

The mica powder produced by the steps (S1-1) to (S1-5) has a particle size of 100 to 1,000 nm, and includes micropores having numerous 4 to 6 nm particle sizes. These silkworm powders electrically collect cations that cause odors due to the characteristics of negatively charged charges at the interface of nano-scale materials, and numerous micropores store oxygen and provide space for useful microorganisms to provide useful microorganisms. It digests and decomposes malodorous substances excreted by anaerobic microorganisms, and further supplies minerals to useful microorganisms to strengthen the cell tissue of useful microorganisms, thereby making them excellent in viability and radiating far infrared rays.

In order to implement the step (S2) of extracting humus extracts, first, the humus is accommodated in a container, and then water heated to 60 to 80°C, preferably 70°C in the container is 5 to 20 times, preferably Is mixed with a volume of 10 times, and then maintained for 12 to 36 hours, preferably 24 hours, to precipitate a large-diameter humus soil having a greater specific gravity than water at the bottom of the container, and contained in the humus soil on the upper side of the humus sediment A step (S2-1) of separating the suspension containing the polymer organic material and floating microscopic particulates is performed.

Next, a step (S2-2) of filtering the suspension with a filter to obtain a primary extract from which humus fine particles suspended in the suspension are removed is performed.

Next, a step (S2-3) of evaporating the primary extract to obtain a secondary extract having a high concentration of the polymer organic material is performed. In step (S2-3), the concentration of the polymer organic substance contained in the secondary extract varies depending on whether the malodor reduction composition of the present invention is in powder or liquid form. For example, when the odor reduction composition of the present invention is to be produced in powder form, the moisture content is about 20%, and when intended to be prepared in liquid form, the moisture content is about 90%.

Next, a step of obtaining a liquid extract composed of a high-purity polymer organic material on the upper side of the precipitate of the fine particles is performed by depositing the secondary extract for at least 36 hours, preferably 48 hours, to precipitate the remaining fine particles.

Next, mixing the aqueous extract with an aqueous solution of sodium chlorite in a volume ratio of 3 to 10%, preferably 5% by volume, based on the liquid extract, followed by stirring for 2 hours or more, preferably 3 hours or more, to neutralize (S2) -5).

Next, after mixing the aqueous solution of citric acid in a volume ratio of 3 to 10%, preferably 5% by volume, based on the neutralization reaction result, the result of the neutralization reaction obtained in step (S2-5) is 12 hours or more, preferably 24 hours Stirring step (S2-6) is performed.

By this series of steps (S2-1) to (S2-6), a humus extract that effectively removes odor-causing substances in the cation form is obtained.

In the above steps (S2-5) and (S2-6), the polymer compound contained in the humus soil extract is a low-molecular compound by breaking the bond ring by a chlorine compound having a very strong oxidizing power. At this time, all of the chlorine compound is evaporated by stirring, so that no chemical residue remains.

The malodor reduction composition of the present invention may be implemented in a powder form or a liquid form. For example, when preparing the malodor reduction composition in powder form, the humus extract is mixed in a proportion of 30 parts by weight based on 100 parts by weight of the mica powder. And when the malodor reduction composition is prepared in a liquid form, the humus extract is mixed in a proportion of 1,000 parts by weight based on 100 parts by weight of the mica powder.

As described above, according to the malodor reduction composition prepared by the production method of the present invention, the interface of the nano-processed sericite powder is negatively charged and electrically adsorbs malodor molecules (substances) of cations, thereby allowing the aerobic microorganisms to facilitate malodor molecules. It can be ingested, and accordingly, the odor can be effectively reduced. That is, silkworm powder adsorbs malodorous substances, and adsorbed malodorous substances are removed as food sources of aerobic microorganisms, which are secondary decomposers.

In addition, numerous micropores formed in the mica powder contained in the malodor reduction composition retain oxygen to slow the propagation of anaerobic microorganisms, facilitate the propagation of aerobic microorganisms using odor substances as food sources, and in particular, intake by aerobic microorganisms. As it has an easy particle size, it can effectively supply minerals necessary for the formation of biological tissues.

In addition, the humus extract contained in the malodor reduction composition has a very high CEC, becomes a relatively low-molecular state by a chlorine compound reaction, and a large amount of OH- and COOH- groups are distributed at the molecular binding ends to adsorb cationic malodor molecules electrically, Organic acids such as humic acid and herbicidal acid contained in humus extracts contain natural antibiotics such as streptomycin, which can prevent pathogens and eliminate the cause of odor caused by decay.

And in the malodor reduction wet cleaning tower equipment used in most malodor emission workplaces, when supplying the malodor reduction composition of the present invention through piping that sprays mist into the wet washing tower, the malodor reduction composition inside the wet washing tower It functions as a condensation nucleus that adsorbs high-concentration malodor-containing water vapor, thereby liquefying the malodor-containing water vapor and recovering it to the washing tank. Therefore, it is possible to prevent the discharge of odor-containing water vapor through the wet cleaning tower, thereby significantly reducing odor complaints.

Hereinafter, the present invention will be described in detail through examples. However, the following examples are only to illustrate the present invention, the present invention is not limited by the following examples.

[Example]

Preparation Example 1. Preparation of mica powder

After mixing 100 parts by weight of mica powder and 20 parts by weight of water heated to 70°C in a container, it is maintained for 24 hours to allow the mica powder to sufficiently absorb water, and then microwaves to the mica powder absorbed water It was irradiated for 5 hours to induce the expansion and heating process of the absorbed water, so that the mica powder was a nano-sized powder. Subsequently, the powdered resultant was filtered with a filter to prepare silkworm powder having an average particle diameter of 300 m or less.

Preparation Example 2. Preparation of humus extract

In order to prepare humus extract, humus was added to the container, and 10 times of the added humus, and water heated to 70°C was added to the container, and then maintained for 24 hours to separate into humus sediment and suspension. Then, the suspension is filtered with a filter and evaporated, and then stored for 48 hours to obtain a liquid extract composed of high-purity polymer oils on the upper side of the fine particle precipitate. Subsequently, a 5% volume ratio of sodium chlorite aqueous solution was mixed with the liquid extract, followed by neutralization by stirring for 3 hours, and then a 5% volume ratio of citric acid aqueous solution was mixed with the result of the neutralization reaction, followed by stirring for 24 hours or more to obtain the final humus extract. It was prepared.

Test Example 1. Reduction of odor in food waste treatment plant using odor reduction composition in powder form

Evenly spray 10kg of malodor reduction composition per 10㎥ of food waste, and the results are shown in [Table 1].

Unit (PPM) Before input After input 12 hours 80 20 24 hours 95 33 72 hours 133 17 168 hours 78 2

As shown in [Table 1], it was confirmed that the odor discharged after spraying the odor reduction composition of Example 1 was reduced, and the odor reduction effect increased as time passed.

Test Example 2. Reduction of malodor in food waste treatment plant using liquid form of malodor reduction composition

Emission odor was measured while 8 liters per hour of the odor reduction composition was introduced into the inlet pipe of the wet cleaning tower of the food waste recycling (composting) facility that processes 100 tons of food waste per day, and the results are shown in Table 2.

Unit (PPM) Inlet shear Measure 0 hours 122 54 1 hours 143 39 2 hours 135 11 3 hours 102 7

As shown in [Table 2], the amount of ammonia was significantly reduced after the malodor reduction composition was added, and the odor of the bodily sensation decreased rapidly from about 1 hour after spraying the composition for reducing malodor of Example 1 After about 3 hours, the odor was hardly felt. Therefore, it was found that the malodor reduction composition of the present invention can be used without a special tool at the site of use, has a low manufacturing cost, has no secondary pollution or by-products, and has an excellent malodor reduction rate.

Claims (8)

delete Preparing a mica powder having a particle diameter of 100 to 1,000 nm by processing a mica stone (S1);
Extracting a humus extract having a CEC (cationic substitution ability) from humus soil (S2); And
Including; (S3) mixing the mica powder and humus extract;
The step (S1) of preparing the mica powder is (S1-1) of pulverizing the mica-like gemstone in the form of a lump, and receiving the mica-crushed material in a container, and 60-80 in the container. After mixing the water heated to ℃ 12 to maintain for 12 to 36 hours, so that the mica powder can absorb water (S1-2), and the inside of the container maintains a temperature environment of 500 ~ 900 ℃ A method of manufacturing a malodor reduction composition comprising irradiating a microwave whose output is controlled as much as possible for 3 hours or more, and pulverizing a mica powder absorbing water (S1-3). According to claim 2,
A method of manufacturing a malodor reduction composition further comprising the step of opening the container so that the water content of the mica powder is 10 to 50% (S1-4). According to claim 2,
By receiving the humus in the container, and mixing the water heated to 60 ~ 80 ℃ in the vessel in a volume of 5 to 20 times the volume of the humus, and maintained for 12 to 36 hours, having a greater specific gravity than water at the bottom of the container Sedimenting a large particle diameter humus soil, separating a suspension containing high molecular organic matter and floating humus microparticles contained in the humus soil on the upper side of the humus soil sediment (S2-1);
A method for producing a malodor reduction composition comprising filtering the suspension with a filter to obtain a primary extract (S2-2) from which fine particles of humus soil suspended in the suspension are removed. According to claim 4,
Evaporating the primary extract to obtain a secondary extract having a high concentration of a polymer organic substance as a main component (S2-3),
Characterized in that it further comprises the step of obtaining a liquid extract composed of a high-purity polymer organic material on the upper side of the precipitate of the fine particles by depositing the secondary extract for more than 36 hours to retain the remaining fine particles (S2-4). Method for manufacturing malodor reduction composition. The method of claim 5,
To the liquid extract, mixing the aqueous solution of sodium chlorite in a volume ratio of 3 to 10% based on the liquid extract, followed by stirring for 2 hours or more to neutralize (S2-5) to produce a malodor reduction composition characterized in that it further comprises Way. The method of claim 6,
Characterized in that it further comprises the step of mixing the aqueous solution of citric acid in a volume ratio of 3 to 10% based on the result of the neutralization reaction and stirring for 12 hours or more (S2-6) based on the neutralization reaction result obtained in the step (S2-5). Manufacturing method of reducing malodor. Claims 2 to 7, characterized in that it is produced by any one of the odor reduction composition.