KR20230066856A - Industrial air disposal system with plasma, UV, hydroxyl radical - Google Patents

Abstract

The present invention multi-stages treatment using hydroxyl radicals, plasma, and ultraviolet (UV) for polluted air generated in industrial environments and livestock environments and containing fine dust and various harmful substances, increasing reliability of purification, purifying at low cost, and removing odors. It relates to an industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays that protects the health of people living or living in the surroundings in an eco-friendly way. purification unit; A purified water supply unit for introducing purified water from the outside in a fixed amount according to a corresponding control signal, removing foreign substances, and supplying purified water in a fixed amount by driving a metering pump; a disinfection module unit for inflowing purified water from the purified water supply unit, generating a disinfectant solution containing hydroxyl radicals, hydrogen peroxide, and ozone according to a corresponding control signal, and disinfecting polluted air introduced from the inflow air purification unit (1000); a plasma module unit that introduces contaminated air from the disinfection module unit and disinfects the contaminated air by irradiating the plasma generated by the corresponding control signal; Due to the feature of including the UV unit that introduces contaminated air from the plasma module unit and disinfects the contaminated air by irradiating ultraviolet rays generated by the corresponding control signal, a large amount is generated around large-scale facilities such as factories, industries, and livestock companies. To rapidly process the purification of polluted air containing fine dust and harmful substances in multiple stages using hydroxyl radicals, plasma, and ultraviolet (UV), and also to process large amounts of polluted air containing large amounts of fine dust and harmful substances. It takes relatively little cost to build a system for this, and it is easy to operate and operate stably with very few personnel, so it has an effect of easy maintenance.

Description

Industrial air disposal system with plasma, UV, hydroxyl radical}

The present invention relates to an industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays, and more specifically, polluted air generated in an industrial environment, livestock farming environment, etc. It relates to an industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays to protect the health of people living or living in the surroundings in an eco-friendly way by processing in multiple stages using a multi-stage treatment, increasing the reliability of purification, purifying at low cost, and removing odors.

Due to the rapid development of industrialization and industrialization around us, population density, and increase in vehicles, factory areas and downtown areas are polluted by smog, exhaust gas, volatile organic compounds such as benzene and toluene, cigarette smoke, fine dust, and various harmful chemicals. This trend is increasing, and due to such air pollution, humans tend to suffer from various respiratory diseases.

A general polluted air purification (cleaning) device includes a fan (FAN) for sucking and exhausting ambient air and includes a filter for removing or filtering various contaminants included in the sucked air as a basic structure. The filter consists of a pre-filter that collects large-particle dust, an activated carbon filter that absorbs gas and odor, and a HEPA filter that filters out bacteria. .

Harmful gases (pollutants) generated from factory facilities, industrial facilities, and automobiles include NOx, SOx, VoX (VOC), fine dust (PM), CO, and HC. It penetrates the human body living or living in the vicinity and causes serious health problems. On the other hand, in addition to factories and industrial facilities, pollutants include microbial substances that live in general air conditioners, textiles, cigarette smoke, air fresheners, and human breathing dioxide, and pollutants reduce human concentration and cause accidents. can cause

Today, pollutants are emerging as a serious threat to basic human survival conditions and health problems, such as the occurrence of new diseases caused by pollutants in the environment, the spread of various diseases caused by air and water quality, soil contamination, and the occurrence of deformities and mutations.

On the other hand, about 40% of air pollutants are photodegraded by sunlight (sunlight), and most of the remaining about 60% fall to the ground due to moisture in the air (clouds, fog, rainwater, etc.) Substances enter the human body and cause serious harm to humans.

The World Health Organization defines ultrafine dust as a first-class carcinogen, and fine dust is classified as follows.

1. Fine dust ------------ Particulate suspended matter with a size of PM 10 or less

2. Ultra-fine dust --------- Particulate suspended matter with a size of PM 2.5 or less

3. Ultra-fine dust ------ Particulate suspended matter with a size of PM 0.1 or less

4. Gas --------- Pollutants that are absorbed into the blood and transported throughout the body when breathing in a size of PM 0.01 or less

Most of the particulate pollutants are captured and retained in the cells of the human bronchial tubes and lungs, but most of the fine particles that occur naturally, such as dust and pollen, are not very harmful to health, and are only to the extent that they cause hypersensitivity reactions in some allergic and sensitive people. Doesn't hurt many.

However, pollutants emitted from general industries, factories, chimneys of power plants, and automobile exhaust include various petroleum-based organic compounds, which correspond to fine gases generated artificially.

Petroleum is a strong carcinogen, and the smoke emitted from various internal combustion engines and factories and industrial facilities that burn petroleum are full of all kinds of carcinogens and dirty pollutants. For example, nitrogen oxides, sulfur oxides, carbon monoxide, and hydrocarbons (HCs: ), some gasified heavy metal substances such as mercury and lead, and most of them are gaseous, and cannot be filtered with a filter.

In addition, the modernized social environment and living method have brought many changes to human life, and indoor air pollution has emerged as a new environmental problem as the time spent living in a closed room increases due to the development of information and communication technology.

When polluted air is created in a limited space indoors, the pollutants circulate and increase their concentration over time, and are exposed to microbiological harmful factors such as various dusts and infectious bacteria and fungi. Infectious diseases and hypersensitivity diseases of the respiratory system, skin system, and headaches occur, and the risk of infection further increases in the elderly and immunosuppressed patients.

Breathing air containing various harmful substances (polluted substances) indoors and outdoors causes blood circulation disorders and causes work-related stress. Research results have been reported that increase the level of reactive oxygen species (ROS) in the human body and have a very bad effect on health.

Active oxygen is generated when oxygen entering the body during the respiration process is used in the oxidation process by various metabolisms in the human body. It attacks living tissues and cells, destroys lipids, proteins, and nucleic acids (DNA, RNA), and functions of various enzymes. It promotes the occurrence of diseases (cancer, aging, etc.) and affects neurotransmitters such as DOPAMINE, SEROTOMIN, and ACETYLCHOLINE, as well as ACETYL-CHOLINE ESTERASE. It significantly lowers the body's immune function.

Food waste generated from homes and restaurants contains a large amount of moisture and nutrients, so it is easy to decompose, and odors and pests occur, causing environmental pollution. and leachate are generated, and environmental pollution cannot be avoided.

In particular, livestock waste generated from livestock farms has a very strong odor, breeds pests and contains a large amount of moisture, making it difficult to use immediately as compost. It is emerging as a social problem.

Therefore, a solidification treatment device that effectively treats organic waste by heating and drying it is being studied, but the amount of discharged water is relatively large, so it takes a lot of time and money for treatment, and it again causes pollution of another dimension by generating odor.

In recent years, a device for removing odor by passing the odor substance through plasma has been developed before being released into the air, but it is necessary to develop a technology for simultaneously treating leachate purification and odor removal.

As a prior art that partially solves these conventional problems and needs, there is an 'air purifier using a plasma discharge cell for an air purifier' according to Korean Patent Registration No. 10-2221407 (February 23, 2021).

1 is a functional block diagram of an air purifying device using plasma according to an embodiment of the prior art.

Hereinafter, referring to the accompanying drawings, the prior art will be described in detail. An air purifying device using plasma includes an intake part 7 and an exhaust part 8 at both ends of a case 1, respectively, and the case 1 Inside, the plasma discharge cell 2 is provided in a sliding detachable manner, and a pre-filter 3 and a fan 6 are provided at the inlet side of the plasma discharge cell 2, and high-voltage power is supplied at the rear side. A control panel assembly 5 as a device is provided, and a HEPA filter 4 is provided on the outlet side.

The prior art has the advantage of purifying the surrounding air by removing odors, germs, and viruses while filtering fine dust, but the processing capacity is small, so the range or area of the surrounding environment used, such as the interior of a bus, is limited, and it is operated only in dry mode. There is a problem that the effect is very limited in the treatment of fine dust.

In addition, in the case of discharging polluted air containing a large amount of harmful substances, such as in a factory or industrial facility, the size of the device becomes very large, so a lot of cost is required for manufacturing and production, and operation is not stable, and management and maintenance are expensive. There is a problem with the time required.

On the other hand, the prior art still fails to solve the problem of not being able to promptly purify polluted air containing fine dust and harmful substances generated in large quantities around large-scale facilities such as factories, industries, and livestock companies.

Therefore, relatively low costs are required for production, production and management, stable operation with a small number of personnel, easy and convenient maintenance, and fine dust and harmful substances generated in large quantities around large-scale facilities such as factories, industries, and livestock companies. It is necessary to develop a technology that rapidly processes the purification of polluted air.

Korean Patent Registration No. 10-2221407 (2021. 02. 23.) ‘Air purifier using plasma discharge cell for air purifier’ Republic of Korea Patent Application No. 10-2010-0136092 (2010. 12. 27.) ‘Food or livestock waste treatment device equipped with a plasma air purifier’

The present invention, which was devised to solve the problems and needs of the prior art as described above, purifies polluted air containing fine dust and harmful substances generated in large quantities around large-scale facilities such as factories, industries, and livestock companies. One of the objectives is to provide an industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays, which are quickly processed in multiple stages using plasma and ultraviolet (UV) rays.

In addition, the present invention requires a relatively low cost to build a system for treating a large amount of polluted air containing a large amount of fine dust and harmful substances, and a very small number of people can easily operate and operate stably, so that maintenance is easy. One of the objectives is to provide an industrial air purifying system using UV light.

In order to achieve the above object, the industrial air purification system using hydroxyl radical, plasma, and ultraviolet rays of the present invention introduces polluted air from the outside according to a corresponding control signal and removes foreign substances to pass through the inflow air purification unit (1000). ); A purified water supply unit (2000) for introducing purified water from the outside in a fixed amount according to a corresponding control signal, removing foreign substances, and supplying purified water in a fixed amount by driving a metering pump; Disinfection module unit (3000) that introduces purified water from the purified water supply unit (2000), generates a disinfectant solution containing hydroxyl radicals, hydrogen peroxide, and ozone according to a corresponding control signal, and disinfects contaminated air introduced from the inflow air purification unit (1000). ); a plasma module unit (4000) for disinfection by introducing contaminated air from the disinfection module unit (3000) and irradiating plasma generated by a corresponding control signal to the contaminated air; a UVC unit 5000 that introduces polluted air from the plasma module unit 4000 and disinfects the polluted air by irradiating ultraviolet rays generated by a corresponding control signal; can include

a diaphragm condensing unit (6000) for introducing contaminated air from the disinfection module unit (3000), condensing and removing moisture contained in the introduced contaminated air with a multi-stage diaphragm, and supplying it to the plasma module unit (4000); may further include.

A purification system operation management unit 7000 that connects to the purified water supply unit 2000, the disinfection module unit 3000, the plasma module unit 4000, and the UVC unit 5000, outputs corresponding control signals, and monitors the operating state; may further include.

The disinfection module unit 3000 includes a purified water quantification inlet unit 3100 for storing purified water by inflowing purified water from the purified water supply unit 2000; It is installed in a state where it is put into the purified water flowing in a fixed amount from the purified water quantification inlet 3100, maintained at a predetermined temperature by the corresponding control signal, removes foreign substances, and electrolyzes the purified water according to the corresponding control signal to obtain hydroxyl radicals, hydrogen peroxide and ozone a BD unit 3200 for generating a disinfectant solution containing; a fog generator 3300 that converts the disinfectant solution generated by the BD unit 3200 into a mist-shaped disinfectant solution according to a corresponding control signal; a disinfection reaction unit 3400 that introduces the fog-like disinfectant solution from the fog generator 3300 and introduces and mixes polluted air from the inlet air purifier 1000; can include

The disinfection reaction unit 3400 includes a photocatalyst unit 3500 that disinfects the introduced contaminated air by generating a photocatalytic reaction; It can be made by providing a built-in.

The BD unit 3200 includes a purified water inlet 3210 for receiving purified water flowing in as a fixed amount from the purified water quantification inlet 3100; a housing part 3220 connecting the purified water inlet 3210 to one side of the lower end and storing purified water flowing in from the purified water inlet 3210 into an external cavity 3221; a purified water heating unit 3230 fixedly installed in a coil shape in a part of the external cavity 3221 of the housing 3220 where purified water is stored and heating the purified water according to a corresponding control signal; A temperature sensor unit 3240 fixed to a part of the other side of the external cavity of the housing unit 3220 and detecting the temperature of purified water by a corresponding control signal; fixedly installed to a part of the internal space of the housing unit 3220 and installed in an external cavity 3221 ) and the inner cavity 3252, and removes and passes foreign substances contained in the purified water to flow into the inner cavity 3252; The central position of the inner cavity 3252 of the water filter unit 3250 The Bvid electrode 3260, which is installed on the top and is fixed at the top and electrolyzes purified water by the corresponding control signal, generates hydroxyl radicals, hydrogen peroxide, and ozone to create a disinfectant solution; Fixed and installed at the top of the water filter unit 3250 It may include a sol valve 3270 for controlling the discharge of the disinfectant solution;

The inner cavity 3252 may have a capacity ranging from 140 to 170 milliliters (ml).

The temperature sensor unit 3240 detects a state in which the temperature of the purified water flowing into the external cavity 3221 drops below 27 degrees Celsius or rises above 28 degrees Celsius, so that the purification system operation management unit 7000 controls the purified water heating unit It may be configured to output a corresponding control signal for controlling the operation of 3230.

The BBD electrode 3260 includes an anode part 3262 formed of a niobium rod and coated with diamond powder and boric acid to form an anode; an ion exchange membrane 3264 covering the entire outside of the anode part 3261 in an insulating state; a cathode portion 3266 made of stainless steel that surrounds the entire exterior of the ion exchange membrane 3264 in a coil shape and forms a cathode; can include

The BBD electrode 3260 may be configured to supply a direct current of 24 volts at an amount of 0.5 ampere between the anode part 3262 and the cathode part 3266.

In the anode part 3262, diamond powder having a diameter of 1 to 10 micrometers is deposited on the surface of a niobium rod having a total diameter of 1.4 to 1.6 millimeters and a length of 150 to 165 millimeters by hot filament chemical vapor deposition (HFCVD). It may be formed by depositing for 9 to 10 hours to form a diamond coating layer by coating a thickness of 400 to 500 micrometers, and coating boric acid to a thickness of 400 to 500 micrometers on the diamond coating layer to form a boric acid layer.

The ion exchange membrane 3264 may be made of an insulating material having a thickness of 1.2 to 1.3 millimeters and may have a structure surrounding the entire outer portion of the anode part 3262 .

The ion exchange membrane 3264 may be made of Teflon.

The negative electrode portion 3266 may be made of stainless steel having an outer diameter of 4 mm and a diameter of 0.25 mm spirally wound uniformly at intervals of 1.7 to 2.2 mm.

The boric acid layer is formed by introducing the diamond layer into a chamber in which 99.99% hydrogen gas flows at a flow rate of 532 sccm and a pressure of 100 Torr is applied, and boron trioxide (B2O3) is deposited for 10 hours. However, carbon is supplied at a flow rate of 10 sccm and the ratio of boron to carbon is mixed at 10**4 ppm, and hydrogen gas can be used as a carrier gas for moving carbon and boron.

The photocatalyst unit 3500 may be formed by applying a titanium dioxide nanomaterial having a diameter of 25 to 30 nanometers (nm) to a thickness of 100 to 200 micrometers (um) on the inner wall of the disinfection reaction unit 3400 and drying it. there is.

The water purification inlet 3100 is an industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays, which is made of any one or more than one selected from stainless steel or engineering plastics of SUS 304 and has a water tank shape. .

The purified water quantification inlet unit 3100 includes a preheating unit 3600 that increases the temperature of the purified water according to a corresponding control signal; It may be further included.

The diaphragm condensing unit 6000 includes a condensed water outlet 6100 for discharging condensed and collected moisture to the outside by a corresponding control signal; It may be further included.

The inlet air purifying unit 1000 may be formed by sequentially disposing one selected from among a chlorinated mesh filter, a non-woven fabric filter, and a carbon filter, or one or more selected ones in an insertion/removal manner.

The fog generator 3300 may have a configuration in which one or more ultrasonic oscillators are provided in a flat arrangement to convert 8 to 24 liters of disinfectant solution per hour into a fog shape.

The inlet air purifying unit 1000 may include a blowing unit 1010 for forcibly transporting air with a capacity of 30 to 100 cubic meters per minute.

The plasma module unit 4000 may be configured to disinfect contaminated air by irradiating ultraviolet rays output from plasma generated by a corresponding control signal.

The UVC unit 5000 selectively generates ultraviolet rays with a wavelength of 185 nanometers (nm) and a wavelength of 254 nanometers (nm) band according to a corresponding control signal, and one or more electrodeless lamp units (5100 ); can include

The UV unit 5000 includes a high-pressure washing unit 5200 for spraying washing water to remove foreign substances attached to the surface of the electrodeless lamp 5100 according to a corresponding control signal; may further include.

The electrodeless lamp unit 5100 may be formed by uniformly disposing numbers selected from a range of 8 or more on each plane of multiple stages.

a discharge unit 8000 for forcibly discharging the contaminated air disinfected from the UVC unit 5000 to the outside by a corresponding control signal and detecting the concentration of total hydrocarbons (THC) contained therein; may further include.

The discharge unit 8000 includes a ventilation unit 8100 forcibly discharging the disinfected polluted air to the outside; a detection sensor unit 8200 for detecting the concentration of total hydrocarbons (THC) contained in the polluted air discharged by the ventilation unit 8100; can include

The discharge unit 8000 includes a heating unit 8300 that heats and discharges the polluted air discharged by the ventilation unit 8100 in a range of 200 to 300 degrees Celsius; may further include.

The present invention configured as described above uses hydroxyl radicals, plasma, and ultraviolet (UV) to purify polluted air containing fine dust and harmful substances generated in large quantities around large-scale facilities such as factories, industries, and livestock companies. It has the advantage of rapid processing in multiple stages.

In addition, the present invention has the advantage of relatively low cost in constructing a system for treating a large amount of polluted air containing a large amount of fine dust and harmful substances, easy operation by very few personnel, and easy maintenance due to stable operation. .

1 is a functional configuration diagram of an air purifying device using plasma according to an embodiment of the prior art;
2 is a diagram showing the entire functional block configuration of an industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays according to an embodiment of the present invention;
3 is a functional block configuration diagram of a disinfection module unit according to an embodiment of the present invention;
4 is a functional configuration diagram of a BD unit according to an embodiment of the present invention;
5 is a functional configuration diagram of a BD electrode according to an embodiment of the present invention;
6 is a functional configuration diagram of a YouTube unit according to an embodiment of the present invention;
and
7 is a functional configuration diagram of a discharge unit according to an embodiment of the present invention.

Since the present invention can apply various transformations and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all conversions, equivalents, or substitutes included in the spirit and scope of the present invention. In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted.

2 is an overall functional block configuration diagram of an industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays according to an embodiment of the present invention, and FIG. 3 is a functional block configuration of a disinfection module according to an embodiment of the present invention. 4 is a functional configuration diagram of a BD unit according to an embodiment of the present invention, FIG. 5 is a functional configuration diagram of a BD electrode according to an embodiment of the present invention, and FIG. It is a functional configuration diagram of the YouTube unit according to an embodiment, and FIG. 7 is a functional configuration diagram of the discharge unit according to an embodiment of the present invention.

Total hydrocarbon (THC: total hydrocarbon) refers to the total amount of carbon and hydrogen compounds, and since it refers to all compounds of carbon and hydrogen including alkanes, alkenes, and alkyne aromatics, the types are very wide.

Hydrocarbons are organic compounds composed of only carbon and hydrogen, and generate secondary pollutants such as ozone through photochemical reactions, and include methane, which is a naturally occurring product related to global warming, and polynuclear hydrocarbons such as benzene and benzopyrene.

Hydrocarbon (CxHy, 炭化水素) is a major component of petroleum and natural gas and is used as fuel and lubricant as well as plastic, fiber, rubber, solvent, explosive and industrial chemical production raw material. is bound to carbon in a different form, is almost insoluble in water, floats on the surface of water due to its low density, dissolves in organic solvents, and emits carbon monoxide by incomplete combustion.

Sewage treatment facilities, livestock wastewater treatment facilities, food manufacturing facilities, pharmaceutical facilities, medical facilities, and public facility areas generate a large amount of harmful odorous gases, and the unauthorized release (emission) of odorous gases to the outside is compulsorily restricted by the local government. .

Hydroxy radical (OH Radical, OH-, hydroxyl radical) chemically decomposes and removes almost all contaminants to sterilize and disinfect. It is a natural substance that is harmless to the human body. is a substance that has That is, the OH radical has an oxidizing power of 200% more than chlorine and 150% more than hydrogen peroxide, and shows a sterilization rate 2000 times faster than ozone and 180 times faster than ultraviolet rays.

Hydroxy radical (OH radical) has sterilization and disinfection action, surface activation action, oxidative decomposition action of decomposable organic substances, decolorization, deodorization and deodorization action, and is used in various sterilization and deodorization devices.

The generation of hydroxyl radical (OH radical) includes a method using an ultraviolet lamp or ozone and a method of electrolyzing water.

In the method using an ultraviolet lamp, ozone is generated by irradiating oxygen with ultraviolet rays of a wavelength of 184.9 nm, and by irradiating the generated ozone with ultraviolet rays of a wavelength of 253.7 nm again to generate photolysis.

The method using a UV lamp consumes relatively high power, so the UV lamp is controlled in a blinking state.

Substances contaminating air include benzene-based substances such as formaldehyde, dust, mold, TVOC, and the like, and with the improvement of living standards, the problem of contamination of ambient air is of great interest.

Volatile organic substances (VOCs), which include benzene, formaldehyde, and dioxin, emit bad odors and are known to be harmful to the human body, such as causing cancer. Since it is discharged as a by-product in the process of producing and processing, it is necessary to provide a corresponding purification device.

The cheapest way to purify volatile organic substances (VOCs) is to adsorb them with activated carbon, but as time passes, the adsorption power of activated carbon becomes saturated and it becomes unable to demonstrate its air purification ability. and VOCs adsorbed on the discarded activated carbon cause environmental pollution.

Activated carbon adsorbed with VOCs can be reused because VOCs are desorbed (decomposed) when subjected to heat treatment or plasma treatment, and when a catalyst is used, VOCs are easily decomposed (desorbed), and desorbed VOCs When passing through a specific catalyst at a high temperature in the range of degrees, the catalyst accelerates the oxidation reaction of VOCs to thermally decompose them and convert them into safe substances such as carbon dioxide (CO2) and emit them.

For the treatment of VOC remaining in an adsorbed state due to incomplete combustion during the heat treatment of activated carbon, refer to Korean Registration Office No. 20-0340079, a specific catalyst is added, but VOC removal is insufficient, and energy consumption is required to install a heater to create a high-temperature environment. There is a risk of fire due to high temperature, and the thermal decomposition rate of VOC takes a relatively long time even if a catalyst is present. On the other hand, when removing VOCs using plasma, it is not efficient because a relatively large amount of energy is consumed compared to the amount of VOCs removed.

Plasma is installed in air purifiers, humidifiers, deodorizers, air purifiers, etc. to sterilize harmful bacteria in the surrounding air and decompose and purify various harmful gases or odors.

Plasma is generated at atmospheric pressure in a dielectric barrier discharge (DBD) method by volume discharge, surface discharge, and coplanar discharge, and occurs uniformly and widely within a certain space. Therefore, it obstructs the flow of air and reduces the purification efficiency.

Plasma is a gas in a localized ionization state that conducts electricity and is composed of ions, electrons, neutral particles, and radicals. It is a fourth state of matter that has properties different from those of gases, liquids, and solids. It can be obtained by applying high temperatures or electric fields. or physically reactive.

Plasma is useful in the fields of cleaning and surface modification to increase bonding strength by changing the surface energy of various materials such as metal, polymer, and nylon.

Air purification by plasma discharge reaction uses high-temperature or low-temperature plasma to change harmful gases into substances that can be easily treated, and as the size of the plasma reaction container increases, the density and energy of plasma are significantly reduced, resulting in a marked drop in treatment efficiency.

Livestock waste generated from livestock farms has a strong odor, breeds pests, and contains a large amount of moisture, making it difficult to use it as compost right away. In addition, in the case of river discharge, it becomes a cause of water pollution and contaminates drinking water and the surrounding environment, emerging as a serious social problem.

Therefore, recently, in order to effectively treat such organic waste, treatment devices for solidifying it have been studied. Such treatment devices are treated by heating, drying, and solidifying the input organic waste. was causing harm.

On the other hand, devices for removing odors by passing plasma through such odorous substances before being released into the air have also been developed. there was a problem with

In order to electrolyze water, activation energy of overvoltage required to generate sparks of shock discharge is required.

Overvoltage is a phenomenon in which a voltage (generally +5% or more) higher than the highest voltage value that appears between two lines during normal operation is supplied for a long time (generally more than 1 second). It is defined as the overpotential voltage that exceeds the peak value of the voltage of the voltage difference that occurs while the same reaction as the voltage when it is occurring is reversibly equilibrated at the same electrode.

In general, the overvoltage generated by a platinum (Pt) electrode or a dimensionally stable electrode (DSE) is less than several hundred millivolts (mV), whereas that of a boron-doped diamond (BDD) electrode The overvoltage is very large, greater than 1 volt (V).

In the case of electrolysis of water, in addition to the generation of O2, the anode maintains a noble potential sufficient for the generation of active oxygen such as hydroxyl group (OH group, HO*), hydrogen peroxide (H2O2), and ozone (O3, ozone). .

When ultrapure water is electrolyzed in a two-chamber electrolyzer using an ion exchange membrane, hydrogen peroxide (H2O2) and ozone (O3) are simultaneously synthesized in large quantities at the BDD electrode, and OH groups are generated by ESR (Electron Spin Resonance). (HO*) is detected.

In an electrolytic cell using a BDD electrode, ozone is generated by the advanced oxidation process (AOP), which has ozone (O3) as its main component, and is generated with the following chemical formula.

Formula 1 ---

Electrodes made of lead dioxide (PbO2), platinum (Pt), titanium dioxide (TiO2), tin dioxide (SnO2) and registered trademark DSE have smaller oxidizing power than BDD electrodes, lack stability, and can flow large current densities. There is no problem.

Let's take a look at the characteristics of BDD electrodes that electrolyze inorganic materials.

In the case of using 0.5 mol dm**-3 salt (sodium chloride, NaCl, sodium chloride) and 0.2 mol dm**-3 sodium sulfate (Na2SO4) aqueous solution, the anode of platinum (Pt) is a salt (NaCl) aqueous solution Cl2 is generated, and O2 is generated from sodium sulfate (Na2SO4) aqueous solution.

The BDD anode produces (generates) hypochlorous acid (HClO) more than twice as fast as the platinum (Pt) anode, and the raw material salt is oxidized to perchlorate ion (ClO4-).

The BDD electrode oxidized with perchlorate ion (ClO4-) exhibits better performance than the platinum (Pt) electrode. In addition, the BDD electrode can obtain a current efficiency of more than 70% in an aqueous solution of persulfate ion (S2O82-).

In low-temperature electrolysis using carbonate and alkali of percarbonate ion (C2O62-) as raw materials and using a BDD electrode, the efficiency is more than three times higher than that of a commercially available platinum (Pt) electrode.

Uric acid (IO3-) can synthesize excess uric acid ion (IO4-) with high efficiency.

In addition, the BDD electrode is attracting attention as an electrode that replaces graphite and nickel (Ni) in gas synthesis of fluorine (F2) and fluorine nitride (NF3) from molten salt.

Let's take a look at the characteristics of BDD electrodes electrolyzing organic matter.

A report that the BDD electrode has excellent characteristics of decomposing carbon dioxide (CO2) from substances to be decomposed such as formic acid and phenol compared to conventional electrodes, and is also suitable for organic wastewater treatment applications that decompose organic compounds into small molecules by oxidation-reduction. is well known.

There are ① direct electrolysis, ② indirect electrolysis by OH groups generated on the electrode surface, ③ indirect electrolysis by active species such as ozone, hydrogen peroxide and peroxides inherent in the electrolyte, and ④ indirect electrolysis by OH groups generated by active species. .

Since the BDD electrode generates an indirect reaction, it is useful for decomposition and sterilization of low-concentration target substances.

For example, a cyan complex can be decomposed with a PbO2 electrode, but using a BDD electrode enables decomposition with a smaller amount of electricity and also reduces the size or scale of the device.

Since the decomposition potential of formic acid is lower than the O2 generation potential, the oxidation reaction can proceed easily. The total organic carbon (TOC) attenuation ratio corresponding to the concentration of formic acid in Na2CO3 and NaHCO3 aqueous solutions was remarkably superior to the BDD electrode.

On the other hand, since the decomposition potential of phenol (C6H5OH) is lower than the O2 generation potential, the oxidation reaction can proceed easily. When a BDD electrode is installed in an electrolytic cell on a pipe and chemical plating wastewater treatment is performed, hypophosphorous acid, phosphorous acid and organic compounds remaining on the surface of the cathode of the BDD electrode can be oxidized and decomposed simultaneously with metal recovery, and the concentration range in which phosphorous acid and organic compounds can be discharged is possible. It has the advantage of reducing

Tests to decompose organic substances contained in industrial water using BDD electrodes have been reported very often. It is noteworthy that it can reduce TOD and Chemical Oxygen Demand (COD), decompose chelating agents of non-degradable substances, and decompose fluorine-based surfactants, and recover and reuse by decomposing brighteners in plating wastewater.

Using BDD electrodes, it is also possible to remove and decompose nitrogen components present in fertilizers and livestock feed in soil water in the agricultural and livestock industry. It is known that it is possible to decompose pesticides and herbicides such as environmental hormones and organic phosphorus compounds that have a serious impact on the ecosystem.

BDD electrodes are also suitable for generating functional electrolytic water and ozone water. BDD electrode is an on-site synthesis technology that replaces existing cleaning and disinfection chemicals, which can eliminate the hassle of chemical preservation and management and reduces the amount of chemicals used.

BDD electrodes are used for cleaning electronic parts due to their high durability, and since acidic electrolytic water contains more HClO that does not dissociate compared to sodium hypochlorite (NaClO4), its sterilizing power is dozens of times greater.

In the electrode-membrane assembly in which the band-shaped fluororesin ion exchange membrane and the cathode ray, which is the H2 generating electrode, were wound around the rod-shaped BDD anode, the ozone water concentration increased as the current increased. Ozone water is produced when the Cl- concentration is less than 1 mol dm-3, and HClO is produced when the Cl- concentration is 3 mol dm-3 or more.

In the case of generating HClO using a BDD electrode, the Cl- concentration is preferably 3 mol dm-3 or more.

By winding the film on the sheet and the cathode of the diaphragm around two rod-shaped BDD electrodes, and using the gap between the anode and the film on the sheet as a flow path, H2 gas can be separated from the cathode. Since the high partial pressure of ozone gas is maintained, the separable electrode can produce high-concentration ozone water three times that of the mixed electrode.

BDD electrodes can be usefully applied to sensors for detecting pollutants, electrolytic synthesis of peroxides, sterilization wastewater treatment, recovery of valuable metals, deodorization, plating, electrodialysis, and electrolytic processing. It is confirmed that there is an advantage in constructing a reaction field and a reaction system of highly active materials, including a cathode, a diaphragm, and an electrolyte.

Diamond is colorless, transparent and solid, so it is used for industrial or jewelry purposes, but it is being developed and used as an electrochemical electrode material to prevent global environmental pollution and secure water resources. Since diamond has high activation energy, it has strong durability even at high voltage.

Although diamond is a semiconductor with a large energy gap, it is durable and its electrochemical resistance can be reduced by adding additives. Recently, Permelec Electrode Co., Ltd. has developed a diamond coated electrode with boric acid added to secure water resources by coating a diamond film. Diamond coating electrode is an eco-friendly electrochemical technology and converts organic substances of polymers into substances by oxidizing and decomposing them. Electrochemical decomposition has the advantage of securing water resources and improving the environment to prevent global warming.

In addition, the diamond-coated electrode generates perchlorate ions, hypochlorous acid, persulfate ions, and percarbonate ions to decompose organic matter, sterilize, bleach, and decolorize. It generates 10 to 300 times more ozone and hydrogen peroxide at the anode than platinum, iridium dioxide, and lead dioxide electrodes, and has strong organic matter or wastewater treatment, sterilization, and bleaching effects. The U.S. Food and Drug Administration is developing food storage and sterilizers with boric acid-added diamond electrodes, and it is also used to develop electrolytic hexagonal water for functional recovery of human organs.

Advanced oxidation process (AOP) is a chemical treatment method or technology that removes organic or inorganic solvents from water or wastewater through an oxidation reaction using OH radicals. In reality, chemical processes using ozone (O3) and hydrogen peroxide (H2O2) or ultraviolet (UV) light are used in wastewater treatment.

As interest in energy and environment-related technologies continues to grow, water treatment technologies to secure safe water resources are also developed, and treatment of non-decomposable pollutants and toxic organic pollutants, including NOX and SOX, is a new technology field. An advanced oxidation technology or advanced oxidation process (AOP) is a technology that solves some of these problems.

In the following description, the advanced oxidation process and advanced oxidation technology have the same meaning and are selectively used according to the context.

Advanced oxidation process (AOP) is a chemical water treatment technology that oxidizes and decomposes pollutants using hydroxyl radicals (OH-, hydroxyl radicals), which are oxidizing agents. -) can change to an oxidized state, but oxidative decomposition is impossible.

Hydroxide radicals in the Advanced Oxidation Process (AOP) can be generated by directly applying energy such as gamma rays, high voltage discharge, and ultrasonic waves to water molecules, and a technology that generates hydroxyl radicals by applying high voltage discharge to water molecules has been registered as a Korean patent No. 10-1061227 (2011. 08. 25.) It is described in 'hydroxyl radical number and hydrogen oxygen gas generator using underwater plasma discharge and system using the same'.

The Advanced Oxidation Process (AOP) uses highly reactive hydroxyl radicals (*OH), etc., and these chemical species are the most powerful oxidizing agents in existence and can oxidize any compound dissolved in water. It works through speed.

Hydroxyl radical (*OH) reacts positively with various contaminants from the moment it is created to oxidize and decompose pollutants into small inorganic molecules very quickly and efficiently. Ozone, hydrogen peroxide, coral ions, etc.), energy sources or catalysts (ultraviolet rays, titanium dioxide, etc.), and the conditions such as dosage, order, and combination of reactants are very accurate to increase yield, and have to react

The AOP process reduces the initial concentration of pollutants by utilizing from at least 5 ppb to hundreds of ppm under well-controlled reaction conditions, reducing total organic carbon and chemical oxygen demand. In particular, it is useful for substances that are biologically toxic or poorly decomposed, such as aromatic compounds, pesticides, petroleum-based components, and volatile organic compounds dissolved in wastewater. On the other hand, when used for tertiary treatment of sterilization and disinfection of wastewater after secondary treatment, a large amount of pollutants are converted (mineralized) into stable inorganic compounds such as water, carbon dioxide, and salt. And by reducing the toxicity and chemical contaminants of the cleaned wastewater, the wastewater can be sent back to a stream or conventional sewage treatment plant. In addition, it is widely used in the tertiary treatment process to remove organic and inorganic substances that are difficult to handle due to its high oxidizing power and efficiency.

There are three major chemical principles of the AOP process.

first ; Formation of hydroxyl radicals (*OH).

Second: the initial reaction of hydroxyl radical (*OH) to the target molecule and destruction of by-products.

Third: Subsequent reaction with hydroxyl radicals (*OH) until it proceeds to final mineralization.

The synthesis mechanism of hydroxyl radical (*OH) is highly dependent on the type of advanced oxidation process technology. For example, ozonation, UV/hydrogen peroxide, and photocatalytic oxidation constitute different hydroxyl radical (*OH) synthesis pathways. .

one ; AOP based on UV light and hydrogen peroxide

two ; Ozone-based AOP

(두번째 오존 분자가 HO2-와 반응하여 오존 라디칼 음이온(ozonide radical)을 생성한다.)

(A second ozone molecule reacts with HO2- to form an ozone radical anion.)

three ; Photocatalytic Oxidation Using Titanium Dioxide

(광촉매의 표면에 빛을 조사시 생기는 들뜸전자(e-)와 궤도에서(h-)를 생성한다.)

(Excited electrons (e-) generated when light is irradiated on the surface of the photocatalyst and (h-) are generated in the orbit.)

The reaction steps presented here are only part of the reaction sequence.

Although there is no established theory on the detailed mechanism of the ‘three’ part, it is known that a clue about the oxidation process of the target molecule by hydroxyl radical (*OH) has been confirmed in the reaction of the ‘two’ part.

Essentially, the hydroxyl radical (*OH) is a radical molecule and acts as a highly reactive electrophile, requiring dehydrogenation and addition reactions during the initial oxidation reaction.

Below is the mechanism of oxidation of benzene using hydroxyl radical (*OH).

The initial reaction of ‘two’ is an electrophilic reaction that decomposes the aromatic ring of (A) to create two hydroxyl groups (-OH) in the intermediate (C). Later, a hydroxyl radical (*OH) molecule grabs a hydrogen atom on one of the hydroxyl groups (-OH), creating a radical species (D). This compound readily rearranges into the more stable (E), which readily undergoes oxidation of a hydroxyl radical (*OH) to yield 2,4-hexadiene-1,6-dione (F).

Oxidation continues beyond (F) as long as there are sufficient hydroxyl radicals (*OH), and finally (F) decomposes into small, stable molecules such as H2O or CO2.

The Advanced Oxidation Process (AOP) or Advanced Oxidation has many advantages in water treatment. One of them effectively removes organic matter in a water-soluble state, and is efficient in converting or adsorbing pollutants to other states and collecting them.

Due to the high reactivity of the hydroxyl radical (*OH), indiscriminate reactions with all water-soluble contaminants are made, and it is widely used in the field of removing various organic pollutants.

When some heavy metals are removed in the form of precipitated M(OH)x, disinfection is possible, so the water quality problem is solved at once. In addition, after the generated hydroxyl radical (*OH) is reduced, the hydroxyl radical (*OH) is reduced to finally produce water (H2O), so that no other harmful substances remain.

Advanced oxidation process (AOP) includes titanium oxide/ultraviolet system, hydrogen peroxide/ultraviolet system, fenton, photo-fenton and electro-fenton system, and other systems are continuously being developed. There is a situation. For example, it is the same as a technique of increasing the photocatalytic property by administering a non-metal element to titanium oxide or increasing the generation of hydroxyl radicals (*OH) by applying ultrasonic treatment.

Hot-filament chemical vapor deposition (HFCVD) is a coating technique widely used to coat diamonds. Diamond film deposition (coating) using HFCVD technology is suitable for the manufacture of tools, machine components, electrodes, etc. It is chemically stable, has a very low coefficient of friction even in poorly lubricated conditions, and has the highest wear resistance even when in contact with abrasive materials , and is generally well known.

Hereinafter, an embodiment of the present invention will be described in detail with reference to all accompanying drawings. An industrial air purification system 900 using hydroxyl radicals, plasma, and ultraviolet rays includes an inlet air purification unit 1000, a purified water supply unit 2000, and disinfection. It is a configuration including a module unit 3000, a plasma module unit 4000, a UVC unit 5000, a diaphragm condensing unit 6000, a purification system management unit 7000, and a discharge unit 8000.

The inlet air purifying unit 1000 introduces polluted air from the outside according to a corresponding control signal applied from the purifying system operation management unit 7000 and removes foreign substances to pass through. The inlet air purification unit 1000 is formed by sequentially disposing one selected from among a chloride mesh filter, a nonwoven fabric filter, and a carbon filter, or one or more of the selected one or more in an easily removable or detachable manner. The inlet air purifying unit 1000 includes a blowing unit 1010 for forcibly transporting air with a capacity of 30 to 100 cubic meters per minute.

The purified water supply unit 2000 introduces purified water from the outside in a fixed amount according to a corresponding control signal applied from the purification system operation management unit 7000, removes foreign substances, and supplies the purified water in a fixed amount by driving a metering pump.

The disinfection module unit 3000 introduces purified water from the purified water supply unit 2000 and generates a disinfectant solution containing hydroxyl radicals, hydrogen peroxide and ozone according to the corresponding control signal applied from the purification system operation management unit 7000, and the inlet air purification unit ( 1000) to disinfect the contaminated air flowing in.

The disinfection module unit 3000 includes a purified water inlet unit 3100, a BD unit 3200, a fog generator 3300, and a disinfection reaction unit 3400.

The purified water quantification inlet unit 3100 receives purified water from the purified water supply unit 2000 and stores the quantity. The purified water inlet 3100 is made of one or more selected from SUS 304 stainless steel or engineering plastics and has a water tank shape or a bowl shape.

The purified water quantification inlet unit 3100 further includes a preheating unit 3600 that increases the temperature of purified water according to a corresponding control signal. It is preferable for safety to have a configuration for preheating the preheating unit 3600 in an indirect manner.

The BD unit 3200 is installed in a state in which purified water is introduced in a fixed amount from the purified water quantification inlet 3100, maintains it at a predetermined temperature by a corresponding control signal, removes foreign substances, and electrolyzes the purified water according to a corresponding control signal. It produces a disinfectant solution containing hydroxyl radical, hydrogen peroxide and ozone.

The BD unit 3200 includes a purified water inlet 3210, a housing 3220, a purified water heating unit 3230, a temperature sensor 3240, a purified water filter 3250, a BB electrode 3260, and a solenoid valve ( 3270). The BD unit 3200 is configured and controlled to receive 600 milliliters of purified water for 5 minutes and produce a disinfectant solution of 1 ppm.

The purified water inlet 3210 receives purified water flowing in as a fixed amount from the purified water quantification inlet 3100 .

The housing part 3220 connects the purified water inlet 3210 to one side of the lower end, and stores purified water introduced from the purified water inlet 3210 into the external cavity 3221.

The purified water heating unit 3230 is fixedly installed in a coil shape in a part of the external cavity 3221 of the housing 3220 where purified water is stored, and heats the purified water according to a corresponding control signal. Since the purified water heating unit 3230 generates heat using electricity, the purified water is heated by an indirect heating method for safety.

The temperature sensor unit 3240 is fixedly installed on the other side of the external cavity of the housing unit 3220 and detects the temperature of purified water according to a corresponding control signal. The temperature sensor unit 3240 may be configured using a bimetal.

The hydroxyl radical (OH group) has a maximum lifespan in the temperature range of 27.4 to 28 degrees Celsius, and as the temperature increases, its lifespan becomes very short as it is activated.

The purification system operation management unit 7000 monitors the temperature sensor unit 3240 to maintain the purified water in the temperature range of 27.4 to 28 degrees Celsius and outputs a corresponding control signal.

The temperature sensor unit 3240 detects a state in which the temperature of the purified water drops below 27 degrees Celsius or rises above 28 degrees Celsius, thereby controlling the operation of the purified water heating unit 3230 to be on or off. It is a configuration that outputs The temperature value detected by the temperature sensor unit 3240 is applied to the purification system operation management unit 7000, and the purified water heating unit 3230 operates according to the control signal of the purification system operation management unit 7000.

The water filter unit 3250 is fixedly installed in a part of the inner space of the housing unit 3220, divides the external cavity 3221 and the internal cavity 3252, and removes foreign substances contained in the purified water to pass through to flow into the internal cavity 3252. let it

The interior cavity 3252 has a capacity in the range of 140 to 170 milliliters, and a configuration with a capacity of 160 milliliters is relatively preferred.

The Bvid electrode 3260 is installed at the center of the inner cavity 3252 of the water filter unit 3250 and is fixed at the top, and electrolyzes the purified water by the corresponding control signal, thereby removing hydroxyl radicals (OH groups), hydrogen peroxide and ozone. to produce a disinfectant solution.

The Bvid electrode 3260 supplies a direct current of 24 volts at 0.5 ampere between the anode and the cathode. The structure of the BB electrode 3260 will be described in detail again below.

The sol valve 3270 is fixedly installed on the top of the water filter unit 3250 and controls the discharge of the disinfectant solution by a corresponding control signal.

The Bvid electrode 3260 electrolyzes purified water to generate radical hydroxide, hydrogen peroxide, and ozone to create a disinfectant solution, and its structure includes an anode part 3262, an ion exchange membrane 3264, and a cathode part 3266 am.

The anode portion 3262 is made of a niobium rod and coated with diamond powder and boric acid to form an anode. Niobium is a Group 5 element and has a very high melting point temperature of about 2,400 degrees Celsius, so it is very stable in use and has a long lifespan.

The anode part 3262 is a hot filament chemical vapor deposition of diamond powder having a diameter of 1 to 10 micrometers (um) on the surface of a niobium rod having a total diameter of 1.4 to 1.6 millimeters (mm) and a length of 150 to 165 millimeters. (HFCVD) deposition for 9 to 10 hours to form a diamond coating layer by coating a thickness of 400 to 500 micrometers, and forming a boric acid layer by coating boric acid to a thickness of 400 to 500 micrometers on the diamond coating layer. am.

The boric acid layer is made by depositing boron trioxide (B2O3) for 10 hours by introducing the diamond layer into a chamber where 99.99% hydrogen gas flows at a flow rate of 532 sccm and a pressure of 100 Torr is applied. is supplied at a flow rate of 10 sccm, the ratio of boron to carbon is mixed at 10**4 ppm, and hydrogen gas is preferably used as a carrier gas for moving carbon and boron.

The ion exchange membrane 3264 is configured to cover the entire exterior of the anode portion 3262 in an insulating state. The ion exchange membrane 3264 is made of an insulating material having a thickness of 1.2 to 1.3 millimeters and has a structure surrounding the entire exterior of the anode portion 3262. The ion exchange membrane 3264 is preferably made of Teflon.

The cathode part 3266 surrounds the entire exterior of the ion exchange membrane 3264 in a coil shape, forms a cathode, and is made of stainless steel.

The cathode portion 3266 is preferably made of stainless steel having an outer diameter of 4 millimeters and a diameter of 0.25 millimeters spirally wound uniformly at intervals of 1.7 to 2.2 millimeters.

The fog generator 3300 converts the disinfectant solution generated by the BD unit 3200 into a fog-shaped disinfectant solution according to a corresponding control signal. The fog generator 3300 preferably has a configuration in which one or more ultrasonic oscillators are provided in a flat arrangement to convert 8 to 17 liters of disinfectant solution per hour into a fog shape. In the fog generator 3300, it is highly preferable for operation that a configuration in which 12 ultrasonic oscillators are arranged in a plane is used as one module and two modules are arranged.

The disinfection reaction unit 3400 introduces a fog-like disinfectant solution from the fog generator 3200 and introduces and mixes contaminated air from the inlet air purifier 1000 .

The disinfection reaction unit 3400 has a built-in photocatalyst unit 3500 that disinfects the introduced contaminated air by generating a photocatalytic reaction. The photocatalytic reaction is generated by a photocatalyst, and it is relatively preferable to use titanium dioxide (TiO 2 ) as the photocatalyst.

The photocatalyst unit 3500 is formed by coating a titanium dioxide nanomaterial with a diameter of 25 to 30 nanometers (nm) to a thickness of 30 to 60 nanometers (nm) on the inner wall of the disinfection reaction unit 3400 and drying it. The photocatalyst unit 3500 is formed by coating a titanium dioxide nanomaterial with a diameter of 25 to 30 nanometers (nm) to a thickness of 100 to 200 micrometers (um) on the inner wall of the disinfection reaction unit 3400 and drying it.

The plasma module unit 4000 introduces contaminated air from the disinfection module unit 3000 and disinfects the contaminated air by irradiating the plasma generated by the corresponding control signal applied from the purification system operation management unit 7000.

The plasma module unit 4000 is configured to sterilize polluted air by irradiating ultraviolet rays output from plasma generated by a corresponding control signal.

The UVC unit 5000 introduces polluted air from the plasma module unit 4000 and irradiates the polluted air with ultraviolet rays generated by a corresponding control signal applied from the purification system operation management unit 7000 to disinfect it. The UVC unit 5000 selectively generates ultraviolet rays with a wavelength of 185 nanometers (nm) band and a wavelength of 254 nanometers (nm) band according to a corresponding control signal, and one or more plurality of electrodeless lamp units 5100 It is a composition that includes

The UV unit 5000 includes a high-pressure cleaning unit 5200 that sprays washing water to remove foreign substances attached to the surface of the electrodeless lamp 5100 according to a corresponding control signal.

In addition, a 28 kilohertz (KHz) ultrasonic signal for removing foreign substances adhering to the surface of the electrodeless lamp 5100 is generated by the corresponding control signal, dispersed and output in an angle range of 60 degrees forward, and one or more than one It includes an ultrasonic unit 5300 made of.

The electrodeless lamp unit 5100 is formed by uniformly disposing numbers selected from the range of 8 or more on each plane of multiple stages.

The diaphragm condensing unit 6000 introduces polluted air from the disinfection module unit 3000, condenses and removes moisture contained in the introduced contaminated air with a multi-stage diaphragm, and supplies it to the plasma module unit 4000. In the case of a multi-stage diaphragm, at least two sheets are installed in a sealed state on one side and both sides of each of the upper and lower walls, respectively, but the lower and upper walls are partially open to form an air flow path. Since it is installed, the moisture contained in the air is condensed in contact with the diaphragm as the moving path of the air becomes longer, so that the moisture is removed. The diaphragm condenser 6000 may be replaced with a cooling coil system.

The diaphragm condensing unit 6000 further includes a condensed water discharge port 6100 for discharging condensed and collected moisture to the outside according to a corresponding control signal. The condensate outlet 6100 may be automatically driven by a corresponding control signal or manually driven by a user.

The purification system operation management unit 7000 connects to the purified water supply unit 2000, the disinfection module unit 3000, the plasma module unit 4000, and the UVC unit 5000, outputs corresponding control signals, and monitors the operating state. The purification system operation management unit 7000 records and manages the corresponding programs, operation parameters and data required for overall operation, and manages updated records as needed.

The discharge unit 8000 forcibly discharges polluted air disinfected from the UVC unit 5000 to the outside according to a corresponding control signal, and detects the concentration of total hydrocarbons (THC) contained therein.

The discharge unit 8000 includes a ventilation unit 8100, a detection sensor unit 8200, and a heating unit 8300.

The ventilation unit 8100 forcibly discharges the contaminated air disinfected from the UVC unit 5000 to the outside by a corresponding control signal.

The detection sensor unit 8200 detects the concentration of total hydrocarbons (THC) contained in the polluted air discharged by the ventilation unit 8100 and notifies the purification system operation management unit 7000. The purification system operation management unit 7000 compares and determines whether the notified total hydrocarbon (THC) concentration is within the allowable range, and if it is determined to exceed the allowable range, the disinfection module unit 3000 and the plasma module unit 4000 and Each of the UVC units 5000 is controlled to output a corresponding control signal required to sterilize polluted air at a higher intensity according to a corresponding built-in program and operational parameters.

The heating unit 8300 heats and discharges polluted air discharged after being disinfected by the ventilation unit 8100 to a temperature range of 200 to 300 degrees Celsius. When the discharged air is heated, harmful gases containing hydroxyl radicals that may be included in the exhaust gas can be removed and purified, and it is highly desirable that the average heating temperature be maintained at 250 degrees Celsius. .

The configuration as described above uses an advanced oxidation process (AOP), BDD electrode, and titanium dioxide to electrochemically oxidize and decompose organic materials of polymers and convert them into environmentally friendly materials, such as factories, industries, and livestock companies. It effectively removes fine dust generated in large quantities around large-scale facilities, and quickly removes polluted air of malignant harmful substances including NOX and SOX in multiple stages using hydroxyl radicals, plasma, and ultraviolet (UV). It has the advantage of purifying and sterilizing viruses.

Although the present invention has been described in detail with respect to the specific examples described above, it is obvious to those skilled in the art that various changes and modifications are possible within the scope of the technical idea of the present invention, and it is natural that these changes and modifications fall within the scope of the appended claims.

900: Industrial air purification system using hydroxyl radical, plasma and ultraviolet rays
100: inlet air purification unit 1010: blowing unit
2000: purified water supply unit 3000; disinfection module
3100: purified water inlet unit 3200: BD unit
3210: purified water inlet 3220: housing part
3221: external cavity 3230: purified water heating unit
3240: temperature sensor unit 3250: water filter unit
3252: internal cavity 3260: BB electrode
3262: anode part 3264: ion exchange membrane
3266: cathode part 3270: sol valve
3300: fog generating unit
3400: disinfection reaction unit 3500: photocatalyst unit
3600: preheating unit 4000: plasma module unit
5000: UVC part 5100: electrodeless lamp part
5200: high pressure washing unit 6000: diaphragm condensation unit
6100: condensate outlet 7000: purification system operation management department
8000: discharge unit 8100: ventilation unit
8200: detection sensor unit 8300: heating unit

Claims (29)

An inflow air purifying unit 1000 which introduces polluted air from the outside according to a corresponding control signal and removes and passes foreign substances therethrough;
A purified water supply unit (2000) for introducing purified water from the outside in a fixed amount according to a corresponding control signal, removing foreign substances, and supplying purified water in a fixed amount by driving a metering pump;
Disinfection module unit (3000) that introduces purified water from the purified water supply unit (2000), generates a disinfectant solution containing hydroxyl radicals, hydrogen peroxide, and ozone according to a corresponding control signal, and disinfects contaminated air introduced from the inflow air purification unit (1000). );
a plasma module unit (4000) for disinfection by introducing contaminated air from the disinfection module unit (3000) and irradiating plasma generated by a corresponding control signal to the contaminated air;
a UVC unit 5000 that introduces polluted air from the plasma module unit 4000 and disinfects the polluted air by irradiating ultraviolet rays generated by a corresponding control signal; An industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays.
According to claim 1,
a diaphragm condensing unit (6000) for introducing contaminated air from the disinfection module unit (3000), condensing and removing moisture contained in the introduced contaminated air with a multi-stage diaphragm, and supplying it to the plasma module unit (4000); An industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays further comprising.
According to claim 1 or 2,
A purification system operation management unit 7000 that connects to the purified water supply unit 2000, the disinfection module unit 3000, the plasma module unit 4000, and the UVC unit 5000, outputs corresponding control signals, and monitors the operating state; An industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays further comprising.
According to claim 1 or 2,
The disinfection module unit 3000
a purified water quantification inlet unit 3100 for inflowing purified water from the purified water supply unit 2000 and storing a quantitative amount;
It is installed in a state where it is put into the purified water flowing in a fixed amount from the purified water quantification inlet 3100, maintained at a predetermined temperature by the corresponding control signal, removes foreign substances, and electrolyzes the purified water according to the corresponding control signal to obtain hydroxyl radicals, hydrogen peroxide and ozone a BD unit 3200 for generating a disinfectant solution containing;
a fog generator 3300 that converts the disinfectant solution generated by the BD unit 3200 into a mist-shaped disinfectant solution according to a corresponding control signal;
a disinfection reaction unit 3400 that introduces the fog-like disinfectant solution from the fog generator 3300 and introduces and mixes polluted air from the inlet air purifier 1000; An industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays.
According to claim 4,
The disinfection reaction unit 3400
a photocatalyst unit 3500 that disinfects the introduced contaminated air by generating a photocatalytic reaction; An industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays having a built-in.
According to claim 4,
The BD unit 3200 is
a purified water inlet 3210 for receiving purified water flowing in from the purified water quantifying inlet 3100;
a housing part 3220 connecting the purified water inlet 3210 to one side of the lower end and storing purified water flowing in from the purified water inlet 3210 into an external cavity 3221;
a purified water heating unit 3230 fixedly installed in a coil shape in a part of the external cavity 3221 of the housing 3220 where purified water is stored and heating the purified water according to a corresponding control signal;
a temperature sensor unit 3240 fixed to a part of the other side of the external cavity of the housing unit 3220 and detecting the temperature of purified water according to a corresponding control signal;
The water filter unit 3250 is fixedly installed in a part of the inner space of the housing part 3220, divides the outer cavity 3221 and the inner cavity 3252, and removes and passes foreign substances contained in the purified water to flow into the inner cavity 3252. );
Installed in the central position of the inner cavity 3252 of the water filter unit 3250, fixed at the top, and electrolyzing purified water by a corresponding control signal to generate hydroxide radicals, hydrogen peroxide, and ozone to generate a disinfectant solution (BBD electrode) 3260);
A solenoid valve 3270 fixedly installed at an upper end of the water filter unit 3250 and controlling discharge of the disinfectant solution; An industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays comprising a composition comprising a.
According to claim 6,
The inner cavity 3252 is
An industrial air purification system using oxidation radicals, plasma and ultraviolet rays, characterized by a configuration consisting of a capacity in the range of 140 to 170 milliliters (ml).
According to claim 6,
The temperature sensor unit 3240
The purification system operation management unit 7000 controls the operation of the purified water heating unit 3230 by detecting a state in which the temperature of the purified water flowing into the external cavity 3221 drops below 27 degrees Celsius or rises above 28 degrees Celsius. An industrial air purification system using oxidation radicals, plasma and ultraviolet rays, characterized in that it consists of a configuration to output the corresponding control signal.
According to claim 6,
The BBD electrode 3260 is
an anode portion 3262 made of a niobium rod and coated with diamond powder and boric acid to form an anode;
an ion exchange membrane 3264 covering the entire outside of the anode part 3261 in an insulating state;
a cathode portion 3266 made of stainless steel that surrounds the entire exterior of the ion exchange membrane 3264 in a coil shape and forms a cathode; An industrial air purification system using hydroxyl radicals, plasma and ultraviolet rays consisting of a configuration comprising a.
According to claim 9,
The BBD electrode 3260 is
An industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays consisting of supplying a direct current of 24 volts at a size of 0.5 ampere between the anode part 3262 and the cathode part 3266.
According to claim 9,
The anode part 3262 is
Diamond powder with a diameter of 1 to 10 micrometers is deposited on the surface of a niobium rod with a total diameter of 1.4 to 1.6 mm and a length of 150 to 165 mm by hot filament chemical vapor deposition (HFCVD) for 9 to 10 hours. A diamond coating layer is formed by coating a thickness of 400 to 500 micrometers, and boric acid is coated to a thickness of 400 to 500 micrometers on the diamond coating layer to form a boric acid layer. Industrial air purification system.
According to claim 10,
The ion exchange membrane 3264 is
An industrial air purification system using hydroxyl radicals, plasma and ultraviolet rays, characterized in that it is made of an insulating material having a thickness of 1.2 to 1.3 millimeters and has a structure surrounding the entire outer portion of the anode portion 3262.
According to claim 11,
The ion exchange membrane 3264 is an industrial air purification system using hydroxyl radicals, plasma and ultraviolet rays, characterized by a configuration made of Teflon.
According to claim 9,
The cathode part 3266 has an outer diameter of 4 millimeters and a stainless steel having a diameter of 0.25 millimeters is uniformly wound in a spiral at intervals of 1.7 to 2.2 millimeters. Industrial air purification system using hydroxyl radicals, plasma and ultraviolet rays.
According to claim 11,
The boric acid layer is
The state in which the diamond layer is formed is introduced into a chamber in which 99.99% hydrogen gas flows at a flow rate of 532 sccm and a pressure of 100 Torr is applied, and boron trioxide (B2O3) is deposited for 10 hours, but carbon is 10 It is supplied at a flow rate of sccm and the ratio of boron to carbon is mixed at 10 ** 4 ppm, and hydrogen gas is used as a carrier gas for carbon and boron to move. Hydroxide radical and plasma and industrial air purification system using UV light.
According to claim 5,
The photocatalyst unit 3500
A hydroxyl radical characterized in that a titanium dioxide nanomaterial having a diameter of 25 to 30 nanometers (nm) is applied to a thickness of 100 to 200 micrometers (um) on the inner wall of the disinfection reaction unit 3400 and dried and fixed. Industrial air purification system using plasma and ultraviolet rays.
According to claim 4,
The water purification inlet 3100 is an industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays, which is made of any one or more than one selected from stainless steel or engineering plastics of SUS 304 and has a water tank shape. .
15. The method of claim 14,
The purified water inlet 3100
a preheating unit 3600 that increases the temperature of the purified water according to a corresponding control signal; An industrial air purification system using hydroxyl radicals, plasma and ultraviolet rays, characterized in that the configuration further comprises.
According to claim 2,
The diaphragm condensing unit 6000
A condensed water outlet 6100 for discharging condensed and collected moisture to the outside by a corresponding control signal; An industrial air purification system using hydroxyl radicals, plasma and ultraviolet rays, characterized in that the configuration further comprises.
According to claim 1 or 2,
The inlet air purifying unit 1000
An industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays, characterized by a configuration in which one or more selected from among a chloride network filter, a non-woven fabric filter, and a carbon filter are sequentially arranged in an insertion and removal manner.
According to claim 4,
The fog generator 3300
An industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays having a configuration in which one or more ultrasonic oscillators are provided in a flat arrangement to convert 8 to 24 liters of disinfectant solution per hour into a mist shape.
According to claim 1 or 2,
The inlet air purifying unit 1000
An industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays comprising a blower 1010 for forcibly transporting air at a capacity of 30 to 100 cubic meters per minute.
According to claim 1 or 2,
The plasma module unit 4000
An industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays, which is configured to sterilize contaminated air by irradiating ultraviolet rays output from plasma generated by the corresponding control signal.
According to claim 1 or 2,
The YouTube unit 5000
one or more electrodeless lamp units 5100 that selectively generate ultraviolet rays by a wavelength of 185 nanometers (nm) band and a wavelength of 254 nanometers (nm) band according to a corresponding control signal; An industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays.
25. The method of claim 24,
The YouTube unit 5000
a high-pressure washing unit 5200 spraying washing water to remove foreign substances attached to the surface of the electrodeless lamp 5100 according to a corresponding control signal; An industrial air purification system using hydroxyl radicals, plasma and ultraviolet rays further comprising.
25. The method of claim 24,
The electrodeless lamp unit 5100
An industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays in which numbers selected from the range of 8 or more are uniformly arranged on each plane of the multi-stage.
According to claim 3,
a discharge unit 8000 for forcibly discharging the contaminated air disinfected from the UVC unit 5000 to the outside by a corresponding control signal and detecting the concentration of total hydrocarbons (THC) contained therein; An industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays further comprising.
28. The method of claim 27,
The discharge unit 8000 is
a ventilation unit 8100 forcibly discharging the disinfected polluted air to the outside;
a detection sensor unit 8200 for detecting the concentration of total hydrocarbons (THC) contained in the polluted air discharged by the ventilation unit 8100; An industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays.
29. The method of claim 28,
The discharge unit 8000 is
a heating unit 8300 that heats and discharges the polluted air discharged by the ventilation unit 8100 in a range of 200 to 300 degrees Celsius; An industrial air purification system using hydroxyl radicals, plasma, and ultraviolet rays further comprising.

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