WO2016099206A1 - Method of analyzing dust and dust collecting apparatus used for the same - Google Patents

Method of analyzing dust and dust collecting apparatus used for the same Download PDF

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Publication number
WO2016099206A1
WO2016099206A1 PCT/KR2015/013953 KR2015013953W WO2016099206A1 WO 2016099206 A1 WO2016099206 A1 WO 2016099206A1 KR 2015013953 W KR2015013953 W KR 2015013953W WO 2016099206 A1 WO2016099206 A1 WO 2016099206A1
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dust
pad
solvent
analyzing
collecting apparatus
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PCT/KR2015/013953
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French (fr)
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Sun-Tae Kim
Han-Soo Kim
Jung-Hyun Jun
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Daejeon University Industry-University Cooperation Foundation
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Publication of WO2016099206A1 publication Critical patent/WO2016099206A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/32—Transportable units, e.g. for cleaning room air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/41—Ionising-electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/45—Collecting-electrodes
    • B03C3/47—Collecting-electrodes flat, e.g. plates, discs, gratings
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/02—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving viable microorganisms
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G01N1/2214—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling by sorption
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2273—Atmospheric sampling
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/40—Concentrating samples
    • G01N1/405—Concentrating samples by adsorption or absorption
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
    • G01N27/622—Ion mobility spectrometry
    • G01N27/623—Ion mobility spectrometry combined with mass spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G01N2001/222—Other features
    • G01N2001/2223—Other features aerosol sampling devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/40—Concentrating samples
    • G01N1/4055—Concentrating samples by solubility techniques
    • G01N2001/4061—Solvent extraction

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  • Chemical & Material Sciences (AREA)
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  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
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  • Wood Science & Technology (AREA)
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  • Proteomics, Peptides & Aminoacids (AREA)
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  • General Engineering & Computer Science (AREA)
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Abstract

The present invention relates to a method of analyzing dust and a dust collecting apparatus used for the same, and more particularly, to a method of analyzing dust capable of adsorbing dust in the air using only an adhesive strength of a pad itself without using an additional power source and easily isolating the adsorbed dust particles to apply the dust particles to various analysis methods, and a dust collecting apparatus used for the same.

Description

METHOD OF ANALYZING DUST AND DUST COLLECTING APPARATUS USED FOR THE SAME
The present invention relates to a method of analyzing dust, and more particularly, to a method capable of collecting and analyzing dust in the air without using a separate power source.
In a modern society, a large amount of dust harmful to human beings is distributed in the air due to vehicle exhaust emissions, release of various industrial wastes, generation of contaminants during a discharge, and incineration of household wastes, etc.
In recent years, fine yellow sand and dust having a size of 20 μm or less formed in desert regions of China and Mongolia blow into Korea, and the inhalations thereof have been causing conditions such as respiratory diseases, allergy, eye diseases, immune dysfunction, etc. Also, since heavy metal materials such as magnesium and silicon are included in the dust, thereby causing great damages to humans and nature.
Therefore, it is necessary to frequently collect dust present in the air and analyze the amount, size and components of the dust to minimize the damages from the dust.
Korean Unexamined Patent Publication No. 2011-0124427 discloses a dust collecting apparatus using a vacuum pump to suck in the air including the dust into the apparatus, and in this case, the dust collecting apparatus includes an inflow tube configured to transport the air sucked in by the vacuum pump to the dust collecting apparatus. Also, Korean Unexamined Patent Publication No. 2013-0001446 discloses a dust collecting apparatus including a particle size separation device through which the air flows in and a pump configured to suck in the air through the particle size separation device.
Also, since a suction-type pump is installed inside the apparatus, a commercially available dust or fine dust monitor uses the suction-type pump to suck in ambient air, filter the air sucked in through a filter pater, and weigh the substances present on the filter paper, or to allow them to react with various sensors to collect and analyze the dust.
However, when components such as a pump and an inlet port are included in one apparatus to analyze the dust, an increase in the size of the apparatus and an increase in manufacturing cost may result, and a separate voltage source may be required to drive the pump.
[Prior-Art Documents]
[Patent Documents]
Korean Unexamined Patent Publication No. 2011-0124427
Korean Unexamined Patent Publication No. 2013-0001446
Therefore, it is an aspect of the present invention to provide a method of analyzing dust that is capable of collecting and analyzing dust in the air without using a separate power source.
According to an aspect of the present invention, there is provided a method of analyzing dust, which includes adsorbing dust in the air onto a pad for a predetermined time, desorbing the dust in a solvent by immersing the pad onto which the dust is adsorbed in the solvent, and analyzing the desorbed dust.
In this case, the pad may be a silicone pad.
The pad may be charged.
The solvent may include at least one selected from the group consisting of water and an alcohol having 1 to 6 carbon atoms.
The desorbing of the dust may include vibrating the solvent.
The solvent may further include an acid, and the desorbing of the dust may include vibrating the solvent to elute heavy metal ions in the dust.
The analyzing of the dust may include measuring a degree of dispersion of the solvent to evaluate an amount of the dust.
The analyzing of the dust may include evaluating a particle size of the dust in the solvent.
The analyzing of the dust may further include measuring a luminous intensity using inductively coupled plasma atomic emission spectroscopy to calculate concentrations of heavy metals.
The analyzing of the dust may further include inoculating the solvent in a medium and incubating microorganisms to determine the species of the microorganisms.
The analyzing of the dust may further include applying the solvent to an ion chromatography to determine the heavy metal ions present in the solvent.
According to another aspect of the present invention, there is provided a dust collecting apparatus which includes a pad configured to adsorb dust, at least one holding member configured to provide a pad accommodation space and disposed at a predetermined interval, and at least one support member coupled to the holding member to support the holding member.
In this case, the pad may be a silicone pad.
The pad may be treated by a corona discharge.
The holding member may include an air passage.
The method of analyzing dust according to one exemplary embodiment of the present invention can be useful in adsorbing dust in the air using only the adhesive strength of a pad itself without using a separate power source and desorbing the adsorbed dust particles for an analysis.
The method of analyzing dust according to one exemplary embodiment of the present invention can be useful in easily isolating the dust in the air and applying various analysis methods to the isolated dust.
The dust collecting apparatus according to one exemplary embodiment of the present invention can be useful in collecting the dust without using a separate power source. Therefore, a small-sized dust collecting apparatus can be manufactured to collect the dust anywhere without space constraints.
FIG. 1 is a perspective view of a dust collecting apparatus according to one exemplary embodiment the present invention.
FIG. 2 is a cross-sectional view taken along line A-A’ of the dust collecting apparatus shown in FIG. 1.
FIG. 3 is a diagram showing a pad charged as one of components of the dust collecting apparatus according to one exemplary embodiment the present invention.
FIG. 4 is a diagram showing a pad and a holding member in the configuration of the dust collecting apparatus shown in FIG. 1.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to the description, it should be understood that the terms used in the specification and appended claims should not be construed as limited to the general and dictionary meanings, but interpreted based on the meanings and concepts corresponding to the technical aspects of the present invention on the basis of the principle that the inventor is allowed to define the terms appropriately for the best explanation.
Hereinafter, a method of analyzing dust according to one exemplary embodiment the present invention will be described in detail.
First, dust in the air is adsorbed on a pad for a predetermined time.
When the pad is placed at a location at which the dust in the air is to be analyzed, the dust flowing in the air is adsorbed onto a surface of the pad.
Since the dust is adsorbed onto the surface of the pad by means of the adhesive strength of the pad itself, the pad may preferably be formed of a material having excellent adhesive strength. For example, the pad may be a silicone pad.
Also, the pad may be charged so that the surface of the pad has charges. In this case, the pad has superior dust adsorptivity.
More preferably, the pad may be treated by corona discharge.
Corona discharge is a kind of discharge in which, when a high voltage is applied between two electrodes, gases around a region in which an electric field converges are locally ionized to form plasma and emit light. In this case, when the pad is treated by corona discharge, only the surface of the pad is modified without changing the characteristics of the pad, thereby removing oily dust present on the surface of the pad and enhancing adhesivity. Therefore, the pad treated by the corona discharge has a superior ability to collect the dust present in the air due to an electrostatic effect.
A predetermined time may be used without limitation as long as it is a time required to sufficiently adsorb the dust in the air onto the pad. For example, the predetermined time may be greater than or equal to 10 minutes, 30 minutes, 1 hour, 5 hours, 10 hours, etc., and an upper limit of the predetermined time may, for example be 14 days, 7 days, 3 days, etc.
Next, the pad onto which the dust is adsorbed is immersed in a solvent to desorb the dust into the solvent.
When the pad onto which the dust is adsorbed is immersed in the solvent to be washed with the solvent, the dust adsorbed onto a surface of the pad may be desorbed into the solvent.
The solvent may, for example, be water, an alcohol having 1 to 6 carbon atoms, etc. When microorganisms in the dust have to be analyzed, distilled water, sterile water, and the like may be used as the solvent.
Also, the solvent may further include an acid to elute heavy metal ions in the dust. The acid may, for example, include nitric acid, hydrochloric acid, sulfuric acid, hydrofluoric acid, hydrobromic acid, hydroiodic acid, perchloric acid, phosphoric acid, etc., but the present invention is not limited thereto.
To desorb a larger amount of the dust adsorbed onto the pad into the solvent, the desorbing may be performed while vibrating the solvent.
The solvent may be vibrated using a vibration device, and may also be vibrated by applying ultrasonic waves to the solvent.
As a specific example in which ultrasonic waves are applied to the solvent, ultrasonic waves having a frequency of 10 to 80 kHz may be applied to the solvent for 1 to 6 minutes. When the ultrasonic waves having this frequency range are applied, the dust may be desorbed from a surface of the pad while reducing damage to the dust.
When heavy metal ions are included in the dust, the solvent may be vibrated to elute the heavy metal ions.
The solvent may be vibrated using a vibration device, and may also be vibrated by applying ultrasonic waves to the solvent.
As a specific example in which ultrasonic waves are applied to the solvent, the ultrasonic waves having a frequency of 5 to 40 kHz may be applied to the solvent for 30 minutes to 4 hours. In this case, the heavy metal ions may be eluted to a high level.
The dust adsorbed onto a surface of the pad may be easily desorbed using the method.
Subsequently, the desorbed dust is analyzed.
According to the method of analyzing dust of the present invention, the isolated dust may be easily analyzed using various methods. For example, the amount and particle size of the dust may be evaluated, and the concentrations of heavy metals may also be evaluated. In this case, it is possible to determine which ions are present in the dust or which microorganisms are present in the dust.
As a specific example of a method of evaluating an amount of the dust, the solvent into which the dust is desorbed may be put into a turbidimeter, and the degree of dispersion of the solvent may be compared to that of a standard solution to evaluate the amount of the dust.
As a specific example of a method of evaluating a particle size of the dust, the solvent into which the dust is desorbed may be put into a particle size analyzer to evaluate the particle size of the dust. Therefore, the dust may be classified by the particle size. In this case, substances having similar physicochemical characteristics rather than the particle size in the dust may be easily separated. The physicochemical characteristics of the divided substances may be analyzed according to the particle size.
For example, the method of analyzing the particle size may include a method using a sieve, a method using a change in voltage, and a method using a diffraction phenomenon which occurs in particles when the dust is irradiated with a laser, but the present invention is not limited thereto. For example, methods known in the related art may be used herein.
As a specific example of a method of calculating the concentrations of the heavy metals, a luminous intensity may be measured by inductively coupled plasma atomic emission spectroscopy to calculate the concentrations of the heavy metals.
As a specific example of a method of checking the presence of microorganisms, the solvent into which the dust is desorbed may be inoculated in a medium, microorganisms may be incubated, and a sample of the cultured microorganisms may be analyzed by means of real-time polymerization chain reaction (RT-PCR).
As a specific example of a method for determining which ions are present in the dust, the solvent into which the dust is desorbed may be applied to an ion chromatography to isolate heavy metal ions and determine which ions are present in the dust.
Also, the present invention provides a dust collecting apparatus capable of being used for the methods of analyzing dust.
FIG. 1 is a perspective view of a dust collecting apparatus according to one exemplary embodiment the present invention, and FIG. 2 is a cross-sectional view taken along line A-A’ of the dust collecting apparatus shown in FIG. 1.
Referring to FIGS. 1 and 2, the dust collecting apparatus according to one exemplary embodiment the present invention includes at least one pad 10, a holding member 20 configured to accommodate the pad 10, and a support member 30 configured to support the holding member 20.
The pad 10 used in the dust collecting apparatus according to one exemplary embodiment the present invention may collect the dust present in the air onto a surface thereof.
The pad 10 may preferably be formed of a material having an excellent adhesive strength. For example, the pad 10 may be a silicone pad 10. The silicone pad 10 is a translucent pad prepared from silicone. When the pad 10 has been prepared from silicone, the dust present in the air may be easily collected in the pad 10 due to the adhesivity of a silicone material itself. Also when the pad 10 on which the dust is collected is retrieved for further analyses, the dust may be more easily collected since the silicone material is soft.
Also, the pad 10 may be charged so that a surface of the pad has charges. In this case, the pad has superior dust adsorptivity.
FIG. 3 is a diagram showing a pad charged as one of components of the dust collecting apparatus according to one exemplary embodiment the present invention.
As shown in FIG. 3, the pad 10 (or a material of which the pad is formed) is positioned on a roller 70, a positive (+) electrode is installed spaced at a predetermined distance from the pad 10, and the roller 70 is connected to an elecrical ground. Thereafter, a voltage (a direct or alternating current voltage) is applied between the (+) electrode and the roller 70, and the pad 10 is charged while moving along the circumference of the roller 70.
Then, the charged pad 10 may be molded into a proper size, as shown in FIG. 1 or 2.
When the pad 10 is charged and molded as described above, the dust present in the air may be more efficiently collected onto a surface of the pad 10 due to the electrostatic effect.
More preferably, the pad 10 may be treated by a corona discharge.
The corona discharge is a kind of discharge in which, when a high voltage is applied between two electrodes, gases around a region on which an electric field converges are locally ionized to form plasma and emit light. In this case, when the pad 10 is treated by corona discharge, only a surface of the pad 10 is modified without changing the characteristics of the pad 10, thereby removing oily dust present on the surface of the pad and enhancing adhesivity. Therefore, the pad 10 treated by the corona discharge has a superior ability to collect the dust present in the air due to the electrostatic effect.
The dust collecting apparatus according to one exemplary embodiment of the present invention includes at least one holding member 20 configured to provide a pad accommodation space and disposed at predetermined intervals.
The pad 10 is accommodated in the holding member 20.
When the dust collecting apparatus according to one exemplary embodiment of the present invention includes the plurality of pads 10, the dust collecting apparatus also includes the plurality of holding members 20. In this case, the holding members 20 may be disposed on top of another so that the plurality of pads 10 are disposed spaced from each other, as shown in FIGS. 1 and 2, but the present invention is not limited thereto.
The holding member 20 may include an air passage to collect the dust onto a bottom surface as well as a top surface of the pad 10 accommodated in the holding member 20. For this purpose, the holding member 20 may be formed so that a central region on which the pad 10 is positioned has a cross shape, as shown in FIG. 4.
The support member 30 is coupled to the holding member 20 to support the holding member 20.
The support member 30 may be coupled to the holding member 20 in a manner in which a plurality of through holes 25 formed along the periphery of the holding member 20 as shown in FIG. 4 or may be coupled to the holding member 20 in a manner in which a plurality of coupling pieces (not shown) are press-fit along the circumference of the holding member 20.
Also, the support members 30 may be coupled to the holding members 20 which are disposed on top of another through the through holes 25 or the coupling pieces formed in the at least one holding member 20, thereby supporting the at least one holding member 20. Therefore, the dust collecting apparatus according to one exemplary embodiment of the present invention may have a column shape.
The dust collecting apparatus according to one exemplary embodiment of the present invention may further include a holding base 40 coupled to a lower end of the support member 30, a cover 50 coupled to an upper end of the support member 30, and a storage container 60.
The holding base 40 is configured to stand the dust collecting apparatus upright.
There are dropping and floating particles in the dust present in the air. The dust collecting apparatus including the cover 50 coupled to the upper end of the support member 30 may be used to collect only the dust floating in the air (that is, not to collect dropping particles). Also, when the dust collecting apparatus is installed outdoors, the dust collecting apparatus is installed so that the dust collecting apparatus is not influenced by rain water.
For the dust collecting apparatus according to one exemplary embodiment of the present invention, the dust may be carried and recovered in the storage container 60 to prevent the dust from being desorbed from the pad 10 after the dust in the air is collected in the pad 10.
[Brief description of parts in the drawings]
10: PAD 20: HOLDING MEMBER
25: THROUGH HOLE 30: SUPPORT MEMBER
40: HOLDING BASE 50: COVER
60: STORAGE CONTAINER 70: ROLLER

Claims (15)

  1. A method of analyzing dust, comprising:
    adsorbing dust in the air onto a pad for a predetermined time;
    desorbing the dust in a solvent by immersing the pad onto which the dust is adsorbed in the solvent; and
    analyzing the desorbed dust.
  2. The method of claim 1, wherein the pad is a silicone pad.
  3. The method of claim 1, wherein the pad is charged.
  4. The method of claim 1, wherein the solvent comprises at least one selected from the group consisting of water and an alcohol having 1 to 6 carbon atoms.
  5. The method of claim 1, wherein the desorbing of the dust comprises vibrating the solvent.
  6. The method of claim 1, wherein the solvent further comprises an acid, and the desorbing of the dust comprises vibrating the solvent to elute heavy metal ions in the dust.
  7. The method of claim 1, wherein the analyzing of the dust comprises measuring a degree of dispersion of the solvent to evaluate an amount of the dust.
  8. The method of claim 1, wherein the analyzing of the dust comprises evaluating a particle size of the dust in the solvent.
  9. The method of claim 6, wherein the analyzing of the dust further comprises measuring a luminous intensity using inductively coupled plasma atomic emission spectroscopy to calculate concentrations of heavy metals.
  10. The method of claim 1, wherein the analyzing of the dust further comprises inoculating the solvent in a medium and incubating microorganisms to determine the species of the microorganisms.
  11. The method of claim 1, wherein the analyzing of the dust further comprises applying the solvent to an ion chromatography to determine the heavy metal ions present in the solvent.
  12. A dust collecting apparatus comprising:
    a pad configured to adsorb dust;
    at least one holding member configured to provide a pad accommodation space and disposed at a predetermined interval; and
    at least one support member coupled to the holding member to support the holding member.
  13. The dust collecting apparatus of claim 12, wherein the pad is a silicone pad.
  14. The dust collecting apparatus of claim 12, wherein the pad is treated by a corona discharge.
  15. The dust collecting apparatus of claim 12, wherein the holding member comprises an air passage.
PCT/KR2015/013953 2014-12-19 2015-12-18 Method of analyzing dust and dust collecting apparatus used for the same WO2016099206A1 (en)

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KR1020140184734A KR101711425B1 (en) 2014-12-19 2014-12-19 Fine particles sampling apparatus and analysis method of fine particles using the same
KR10-2014-0184734 2014-12-19

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Cited By (2)

* Cited by examiner, † Cited by third party
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