JP6178522B2 - Wastewater purification system using high voltage discharge and fine bubbles - Google Patents

Description

Embodiments of the present invention relate to a wastewater purification treatment system, and more particularly, to a system for purifying wastewater using high voltage discharge and fine bubbles .

  General water treatment techniques can be broadly divided into physical / chemical treatment, biological treatment, and multistage treatment. Currently, many researches are underway to jump over such technologies and see better water treatment effects, but many studies are centered on the so-called advanced water treatment technology.

  Examining the types of advanced water treatment technologies: 1) Electrochemical methods, 2) Water treatment technology using electricity and magnetism, 3) Water treatment technology using ultraviolet light, 4) Water using high voltage discharge There is processing technology.

Unlike conventional water treatment technology, water treatment technology using high-voltage discharge does not require chemical input, the treatment process is simple, and it does not generate secondary contamination. It is emerging. High voltage discharge includes pulse streamer discharge, silent discharge, partial discharge, creeping discharge and corona discharge. Research on electrical discharges for the treatment of water pollutants has been actively conducted in the United States, Japan, the Netherlands, the Czech Republic, Russia, Canada and other countries since the late 1980s. Various physicochemical processes are disclosed by generating a high-voltage pulse discharge in water or on the surface of water, and ultraviolet (UV), shock waves, and H, O, OH, hydrogen peroxide (H ₂ O ₂ ) In the discharge of gas species generated close to the water surface, such as chemically active species is generated, high concentrations of ozone and active radicals are generated in the presence of oxygen, and water is easily added. It is known to be dissolved in and participate in the contaminant removal process.

When using air as the inlet gas of a high voltage discharge device, begin _{○ 3 ○, OH, H,} N, radicals such as HO ₂ (Radical) are generated, these unstable products, secondary By reacting with pollutants or oxygen to form peroxides or new forms of radicals, a chain oxidative decomposition reaction proceeds. It can be widely applied to the purification of pollutants such as medium toxic gas and bad odor, chromaticity and pollution.

  At present, too many high voltage discharge techniques for water treatment have been studied, and it has been proved by academic experiments that it is effective when purifying water using high voltage discharge. Value is recognized.

  Furthermore, recently, a technique has also been proposed in which secondary purification is performed by generating secondary bubbles in wastewater purified by high-voltage discharge. However, in this case, purification by high voltage discharge and purification by bubbles are performed independently. Such independent two-stage purification is merely a parallel progression of purification by high-voltage discharge and purification by bubbles. Also, when compared with the case of purifying only by high-voltage discharge, in that it is merely purifying by high-voltage discharge, only performing additional purification with waste bubbles purified to high-voltage discharge, It will take almost the same time.

Korean Registered Patent No. 10-121823 (2012.12.13)

An embodiment of the present invention is to provide a wastewater purification treatment system in which purification capability and speed are enhanced by simultaneously using high voltage discharge and fine bubbles in one reaction vessel.

In addition, an embodiment of the present invention is to provide a wastewater purification system capable of purifying highly-concentrated hardly decomposable wastewater by simultaneously using high voltage discharge and fine bubbles in one reaction tank. .

Further, the embodiment of the present invention maximizes the efficiency of the wastewater purification treatment by shortening the time required for the purification of the wastewater by first performing the purification using the fine bubbles before the high voltage discharge and the purification by the fine bubbles. This is to provide a wastewater purification treatment system.

  Both are intended to provide a wastewater purification treatment system capable of purifying contaminated air that will be generated during operation of the wastewater purification treatment system and discharging it to the outside.

  According to one aspect of the present invention, a first septic tank that stores waste water flowing from the outside and primarily purifies the waste water with fine bubbles, and generates fine bubbles for primary purification in the first septic tank. In addition, a first bubble generator that causes waste water to flow from the first septic tank and flow out to the first septic tank together with fine bubbles, and a primary purified wastewater that has been primarily purified from the first septic tank, flow into the high voltage discharge and fine A second septic tank for secondary purification of wastewater with bubbles, a high-voltage discharge device that is located above the second septic tank and discharges ozone and radical ions into the primary purification wastewater inside the second septic tank, and in the second septic tank In order to generate fine bubbles that allow ozone and radical ions discharged from the high-voltage discharge device to be diffused, the first purification wastewater is introduced from the second septic tank and is discharged from the second septic tank together with the fine bubbles. 2-bubble generator Includes a cleaning chamber in which the first septic tank and a second septic tank is located, a high-voltage discharge air purification stage for discharging to the outside the air that is flowing out of the purification chamber purged with high voltage discharge, a.

  Here, the wastewater flowing into the first septic tank may include one or more of food wastewater, dyeing waste, livestock wastewater, papermaking wastewater, and starch wastewater.

  Also, the air flowing into the high voltage discharge device can be the air in the purification chamber so that the high voltage discharge device discharges ozone radical ions.

  Further, the first bubble generator and the second bubble generator can be supplied with fine bubbles from one fine bubble generator.

  Embodiments of the present invention can improve purification capacity and speed by utilizing high voltage discharge and fine bubbles simultaneously in one reaction vessel.

Furthermore, the embodiment of the present invention can purify highly-concentrated hardly decomposable wastewater by simultaneously using high voltage discharge and fine bubbles in one reaction vessel.

Further, the embodiment of the present invention maximizes the efficiency of the wastewater purification treatment by shortening the time required for the purification of the wastewater by first performing the purification using the fine bubbles before the high voltage discharge and the purification by the fine bubbles. be able to.

  In both cases, the contaminated air generated during the operation of the wastewater purification treatment system can be purified and discharged to the outside.

It is an apparatus block diagram of the waste water purification treatment system by the Example of this invention. It is a block diagram of the high voltage discharge device of the waste water purification treatment system by the Example of this invention. It is a block diagram of the high voltage discharger of the waste water purification treatment system by the Example of this invention. 4 is a diagram illustrating a function of fine bubbles in a second storage tank of a wastewater purification treatment system according to an embodiment of the present invention.

  Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, this is only an example, and the present invention is not limited to this.

  In the description of the present invention, a detailed description of a known technique related to the present invention will be omitted when the gist of the present invention can be unnecessarily clouded. The terms described below are defined in consideration of the function of the present invention, and can be changed depending on the intentions or customs of the user and the operator. Therefore, the definition must be made based on the contents throughout this specification.

  The technical idea of the present invention is determined by the claims, and the following embodiments are only means for efficiently explaining the technical idea of the present invention to a person having ordinary knowledge in the technical field to which the present invention belongs. It is.

FIG. 1 is an apparatus configuration diagram of a wastewater purification system using high voltage discharge and fine bubbles according to an embodiment of the present invention. As shown in FIG. 1, in a wastewater purification system 1 using high voltage discharge and fine bubbles according to an embodiment of the present invention, a first septic tank 100 and a second septic tank 200 are located in a purification chamber 10. In the waste water purification system 1 using high voltage discharge and fine bubbles according to the embodiment of the present invention, after the waste water is first purified by the fine bubbles in the first purification tank 100, the primary purification waste water is supplied to the second purification tank 200. Supplied and secondarily purified by the action of high voltage discharge and fine bubbles . As a result, suspended contaminants (SS) are primarily removed through the primary purification process, and then secondarily purified by the cooperative action of high voltage discharge and fine bubbles . Accordingly, the wastewater purification system 1 using high voltage discharge and fine bubbles according to the embodiment of the present invention can quickly remove highly concentrated hardly decomposable wastewater.

  First, waste water w / w (waste water) is introduced into the first septic tank 100 from the outside through the waste water inflow pipe 110. The inflowing wastewater can include sewage, wastewater, sewage, etc. discharged from various facilities such as households, factories, and agricultural and livestock industries. Further, food wastewater, dyeing wastewater, livestock wastewater, papermaking wastewater, starch wastewater, and the like, which are highly concentrated hardly degradable wastewater, can be included.

The inflowing wastewater is first purified by fine bubbles in the first septic tank 100, that is, the first septic tank 100 stores the inflowing wastewater and primarily purifies it. The primary purification in the first septic tank 100 is performed by capturing contaminants of fine bubbles .

For this reason, the first septic tank 100 is in fluid communication with the first bubble generator 150. That is, the waste water in the first septic tank 100 flows into the first bubble generator 150 from the first waste water inflow path 152 connected to the side of the first septic tank 100. Thereafter, the first bubble generator 150 injects fine bubbles into the wastewater that has flowed into the first bubble generator 150 and then flows out again to the first septic tank 100 through the first wastewater outflow passage 154. Here, the first wastewater outflow path 154 may have one end connected to the first bubble generator 150 and the other end connected to the lower surface of the first septic tank 100. By connecting the other end of the first wastewater outflow path 154 to the lower surface of the first septic tank 100, the fine bubbles contained in the wastewater that has flowed out again into the first septic tank 100 rise in the first septic tank 100. Can spread smoothly. Here, the fine bubbles B spreading inside the first septic tank 100 may have a diameter of 10 to 100 μm. However, the present invention is not limited thereto, and may have a diameter of 10 to 1000 μm and may have a diameter of 100 μm or more. On the other hand, FIG. 1 shows that the number of the first wastewater inflow paths 152 is one and the number of the first wastewater outflow paths 154 is two, but the number is not limited to this, and the number is the first septic tank 100. The capacity can be determined as needed. For example, in order to allow the first septic tank 100 to have a large volume or fine bubbles to spread more quickly within the first septic tank 100, three or more first waste water outflow paths 154 may be provided. Further, although not shown in the drawings, the first wastewater outflow passage may be two or more branch pipes when branched from one main outflow passage.

  The fine bubbles B supplied into the first septic tank 100 primarily purify waste water (w / w) in the first septic tank 100. When the first bubble generator 150 is activated, the first septic tank 100 can be filled with the fine bubbles B after a predetermined time has elapsed. Here, the predetermined time may be about 5 minutes (the time required until it fills up visually is about 30 seconds to 1 minute), which is the capacity of the first bubble generator 150 and the first septic tank 100. However, the present invention is not limited to this. In the first septic tank 100, the fine bubbles B are the total wastewater (w / w) total nitrogen (T / N, Total Phosphorus), total phosphorus (T / P, Total Phosphorus), biological oxygen demand (BOD, Biochemical Oxygen). Demand, chemical oxygen demand (COD, Chemical Oxygen Demand), and suspended contaminants (SS, Suspended Sidden) will be reduced or reduced.

Here, floating pollutant SS is a pollutant that is present in food wastewater, dyeing wastewater, livestock wastewater, papermaking wastewater, starch wastewater, and is difficult to remove because it is suspended in wastewater. Is one of the In the first septic tank 100, the fine bubbles B are adsorbed on the outer surface of the floating contaminant SS and collect the floating contaminant SS. The fine bubbles B having a density lower than that of the waste water receive a force (buoyancy) that tends to move to the upper side of the waste water in the first septic tank 100. Here, by receiving buoyancy in a state where the fine bubbles B have adsorbed / collected the floating pollutant SS, the floating pollutant SS floats on the waste water in the first septic tank 100 together with the fine bubbles B. Become. In FIG. 1, it can be confirmed that the floating contaminant SS is suspended in the upper part of the first septic tank 100. As described above, the pollutant including the floating pollutant SS rich in the upper part of the waste water in the first septic tank 100 can be easily removed by the contaminant removing operation in the upper part of the first septic tank 100. .

In this way, the contaminants including the floating contaminant SS are primarily removed from the waste water w / w in the first septic tank 100. In the present specification, this is referred to as “primary purification process”. Such a primary purification process will be described later by making it possible to quickly and efficiently remove the floating pollutant SS, which takes a considerable amount of time when removed by high voltage discharge. The time required for the secondary purification process (purification process using high voltage discharge and fine bubbles ) can be reduced.

  The primary purification wastewater purified through the primary purification process can be moved to the secondary purification tank 200 through the first purification tank wastewater outflow pipe 120 by opening the first valve V1. One end of the first septic tank wastewater outflow pipe 120 may be coupled to the lower part of the first septic tank 100, and the other end may be coupled to the upper part of the second septic tank 200. The first valve V1 may be provided in the first septic tank wastewater outflow pipe 120. In addition, although not shown in the drawings, a separate pump may be provided to transfer the primary purified wastewater through the first septic tank wastewater outflow pipe 120.

  In FIG. 1, the other end of the first septic tank wastewater outflow pipe 120 is located higher than the other end. However, the present invention is not limited to this, and it goes without saying that the other end of the septic tank wastewater outflow pipe 120 can be positioned lower than the other end. For example, the first septic tank wastewater outflow pipe in which the first septic tank 100 is located above the second septic tank 200 and one end of the first septic tank wastewater outflow pipe 120 connected to the first septic tank 100 is connected to the second septic tank 200. Of course, it can be located higher than the other end of 120. In this case, the first purification wastewater can move along the first septic tank wastewater outflow pipe 120 by gravity. Therefore, the movement of the first purified wastewater can be controlled only by opening and closing the first valve V1 without providing a separate pump.

The first purified wastewater that has flowed into the second septic tank 200 through the first septic tank wastewater outflow pipe 120 is secondarily purified in the second septic tank 200. Secondary purification is performed by the simultaneous action of high voltage discharge and fine bubbles . For such secondary purification, the second septic tank 200 is provided with a high-voltage discharge device 260 at the top and is in fluid communication with the second bubble generator.

  The high voltage discharge device 260 is located in the upper part of the second septic tank 200, and generates ozone and radical ions from the air flowing in from the outside by high voltage discharge. For this reason, the high voltage discharge device 260 may include various types of devices, such as a DBC (dielectrictric barrier discharge) source, an ICP (inductively coupled plasma) source, a CCP (capacitively coupled plasma), and a TCP source. It can be a coupled plasma (ECP) source, an ECR (electron cyclotron resonance) source, a SWP (surface wave plasma) source, or the like.

  Such a high-voltage discharge device 260 can generate zon and radical ions using high-voltage discharge from air flowing in from the outside, and can use this to secondary-purify the primary purification wastewater. . Specifically, the high voltage discharge device 260 of the present invention can perform a function of treating the primary purified wastewater by applying an electric field to the primary purified wastewater. The air that has flowed in during such a process is ionized, so that the primary purification wastewater can be subjected to secondary purification treatment, which will be described later.

  In addition, the high voltage discharge device 260 may include an air inflow tube 262 for inflowing air. The high-voltage discharge device 260 can be positioned at the upper part of the second septic tank 200. This is because primary sewage wastewater is stored and / or transferred from and into the second septic tank 200, and lighter ozone and radicals are contained in the wastewater and in the wastewater. This is because it reacts more effectively on the surface.

  With reference to FIGS. 2 and 3, the high voltage discharge device 260 according to an embodiment of the present invention will be described in more detail. The high voltage discharge device 260 according to the embodiment of the present invention has a configuration in which one or more high voltage dischargers 270 are combined.

  As shown in FIG. 3, a high voltage discharger 270 according to an embodiment of the present invention includes a cylindrical tube 270-1, a support base 270-3, a metal mesh 270-5, an external electrode 270-7, and the like. Can be included.

  First, the cylindrical tube 270-1 is a basic structure of the high voltage discharger 270 according to the embodiment of the present invention, and both ends are opened and can be made of a dielectric. The cylindrical tube 270-1 includes an internal electrode 270-9 therein, and the form thereof may not be particularly limited. One end, i.e., the upper end of the cylindrical tube 270-1 is opened and coupled to the support base 270-3, and the other end, i.e., the lower end, can be opened entirely or partially. The cylindrical tube 270-1 may be formed of an insulating material between the electrodes disposed inside and outside the cylindrical tube 270-1. It can also be a quartz tube made of quartz and can be made of a dielectric.

  Accordingly, when a current is applied to the external electrode 270-7 and the internal electrode 270-9, the electric capacity is relatively increased while the electric field is reduced due to the electric polarization of the dielectric (Dielectric Substance). Therefore, in the embodiment of the present invention, the avalanche effect can be maximized while using the dielectric material in the cylindrical tube 270-1 to maintain the current flow at the highest level.

Further, one end of the cylindrical tube 270-1 can be coupled to the support base 270-3.
The support base 270-3 supports each component of the cylindrical tube 270-1 and the high-voltage discharger 270 including the same. Further, the support base 270-3 can serve to distinguish between a region where high voltage discharge can be performed and a region where current and air are introduced. The material and shape of the support base 270-3 are not particularly limited, and can be made of, for example, a nonconductive material.

  The metal mesh 270-5 surrounds the outside of the cylindrical tube 270-1 and is connected to the external electrode 270-7 so that it can act as a mesh electrode having a mesh shape. Such a net-shaped hole can maximize corona discharge. That is, by increasing the charging area and partially concentrating the charge, the electron generation efficiency is increased, and the generation of corona discharge is increased, but the arc discharge can be suppressed. Further, the material and shape of the metal net 270-5 are not particularly limited, but can be formed of a conductor, for example, stainless steel. Further, it may be formed in the cylindrical tube 270-1 around the entire upper portion and the lower portion thereof or a part thereof.

  The internal electrode 270-9 passes through the support base 270-3 and is connected to the metal mesh 270-5. The external electrode 270-7 can be located outside the cylindrical tube 270-1 and supplies current to the metal mesh 270-5. Therefore, the external electrode 270-7 can be formed through the support 270-3.

  The internal electrode 270-9 can be positioned inside the cylindrical tube 270-1 through the support base 270-3. The internal electrode 270-9 is an electrode facing the external electrode 270-7, and high voltage discharge is performed with the cylindrical tube 270-1 interposed therebetween. For this reason, the material and shape of the internal electrode 270-9 are variously formed and can be, for example, a plate-like conductor made of stainless steel.

  The air transmission tube 264 can be formed integrally with the internal electrode 270-9. The internal electrode 270-9 is formed in a tube shape, and air can flow into the internal electrode 270-9 to be transmitted into the cylindrical tube 270-1. In the embodiment of the present invention, after forming an insulation capacitor with air between the external electrode 270-7 and the internal electrode 270-9, high voltage discharge is caused through the insulation capacitor. Is transmitted to the inside of the cylindrical tube 270-1. In the embodiment of the present invention, the air transmission pipe 264 is integrated with the internal electrode 270-9. However, the air transmission pipe 264 is not limited to this and may be provided as a separate pipe that is distinguished from the internal electrode 270-9. It is.

  In addition, the air supplied to the high voltage discharger 270 according to the embodiment of the present invention may be air in the purification chamber 10. That is, the high-voltage discharger 270 is supplied to induce a high-voltage discharge, and the air in the purification chamber 10 is included in the air in the purification chamber 10 as the air that generates ozone or radicals. Malodorous substances can be reduced and / or removed.

  The high voltage discharger 270 of the present invention having such a configuration has the following operational relationship. First, when the power supply is DC, a positive voltage is intermittently applied to the internal electrode 270-9 projecting toward the upper end side of the support base 270-3 by applying a positive voltage, thereby providing a network structure. A power source is connected to the external electrode 270-7. Then, the outer electrode 270-7 and the inner electrode 270-9 are charged with each other with the cylindrical tube 270-1 as a dielectric interposed therebetween. In this state, the energy injected by the high voltage forms an avalanche inside the cylindrical tube 270-1 which is a barrier like a semiconductor phenomenon, and the generated electrons are cylindrical due to the thermal energy in which the electrons are floating. The tube 270-1 penetrates the barrier and is emitted to the external electrode 270-7 side outside the cylindrical tube 270-1. At this time, the generated avalanche electrons are discharged to pull and pull the oxygen molecules in the vicinity, and at this time, the generated electrons float energy that the oxygen molecules can easily absorb. The lifetime of ordinary ions varies depending on the thread.

Accordingly, the oxygen molecule obtains two generated electrons and is transformed into unstable inorganic peroxide oxygen (◯ ^-2 ₂ ) or ○ ₂ which is a peroxy radical. Since such inorganic peroxide oxygen is formed radially around the cylindrical tube 270-1, a large amount is instantaneously generated over a large area. Such inorganic peroxide oxygen can react directly or indirectly with organic substances contained in the primary purification wastewater, and the wastewater can be purified by such a reaction. For example, the hydration radical (peroxy radical) or the like can react with NH4 which is one of organic substances to generate N2 and H20. Such a reaction of the hydration radical is diffused to all organic substances contained in the wastewater, and the primary purification wastewater can be subjected to the secondary purification treatment by the reaction between the hydration radical and the organic substance. In addition, the above-mentioned inorganic oxygen peroxide permeates cell membranes of pathogenic bacteria and viruses through radical action, neutralizes and destroys them, decomposes volatile organic compounds (VOC), and substances such as methane are water and carbon dioxide. In the case of hydrogen sulfide, it is decomposed into water and a very small amount of sulfuric acid. In particular, it exhibits an excellent effect in removing bad odors, but it can be completely removed by decomposing and disappearing rather than collecting over 20 known bad odors.

  Further, the high voltage discharger 270 according to the present invention described above uses the air transmitted to the inside of the cylindrical tube 270-1 by the air transmission view 60 and uses the contaminated air in the purification chamber 10, so that the inside of the purification chamber 10. Air that is polluted with bad odor can be purified continuously.

  Further, the capacitor formed by the insulating air between the external electrode 270-7 and the internal electrode 270-9 is sequentially charged and discharged, and exists between the external electrode 270-7 and the internal electrode 270-9. A change or loss of surface properties of the cylindrical tube 270-1 appears as a disadvantage. For this reason, according to the embodiment of the present invention, only the cylindrical tube 270-1 and the metal mesh 270-5 formed around the cylindrical tube 270-1 can be replaced. The internal electrode 270-9 can be used continuously.

  Here, the high voltage discharge device 260 has a configuration in which one or more high voltage dischargers 270 are combined. Specifically, as illustrated in FIG. 2, the high voltage discharge device 260 includes a high voltage discharge device 270 coupled to a cover 266 that forms a lower portion of the high voltage discharge device main body 280, and is supported above the cover 266. The platform 270-3 may be combined. Here, the cover 266 may be a cover 266 that constitutes the upper surface of the second septic tank 200 and covers the upper part of the second septic tank 200. A current supply unit 268 for supplying a current to the external electrode 270-7 and the internal electrode 270-9 of the high voltage discharger 270 may be positioned inside the high voltage discharge apparatus body 280. In addition, the high voltage discharge device main body 280 may include an air tube 262-1 that is connected to an air inflow tube 262 and connected to an air transmission tube 264 that supplies air to each of the high voltage dischargers. Thus, the air flowing in from the air inflow pipe 262 can be transmitted to the high voltage discharger 270 through the air transmission view 264 through the air pipe 262-1.

  Meanwhile, as shown in FIG. 2, a part of the high voltage discharger 270 may be protruded outside the high voltage discharge device body 280. The high voltage discharger 270 protruding in this manner may be partially immersed in the primary purification waste water as illustrated in FIG. However, the present invention is not limited to this, and a chamber (not shown) in which ozone and radicals radiated from the high voltage discharger 270270 are collected separately exists at the bottom of the high voltage discharge device 260, and an exhaust pipe ( (Not shown) can be extended and immersed in the primary purification wastewater. Accordingly, ozone and radicals generated from the high voltage discharger 270 can be supplied into the primary purification waste water w / w-1 in the second septic tank 200.

  Here, ozone and radicals supplied into the primary purification waste water w / w-1 are caused by a reaction (purification reaction) or an oxidation reaction with the primary purification waste water w / w-1 in the second purification tank 200. It is gathered around the high voltage discharger 270. That is, it cannot be diffused outside the high voltage discharger 270, and ozone and radicals are located only in a specific region in the vicinity where ozone and radicals are emitted by the high voltage discharger 270. When such ozone or radical cannot be diffused in the second septic tank 200, secondary purification is performed only in a very limited part of the region, so the time required for the secondary purification process Will be very long.

Therefore, in the wastewater purification treatment system 1 according to the embodiment of the present invention, the second purification tank 200 is in fluid communication with the second bubble generator 250 as shown in FIG. That is, in the second bubble generator 250, the waste water in the second septic tank 200 is introduced from the second waste water inflow passage 252 connected to the side of the second septic tank 200. After that, the second bubble generator 250 injects fine bubbles into the wastewater that has flowed in the second bubble generator 250 and then flows out again into the second septic tank 200 through the second wastewater outflow passage 254. Here, the second wastewater outflow passage 254 may have one end connected to the second bubble generator 250 and the other end connected to the lower surface of the second septic tank 200. Through this, the fine bubbles contained in the waste water that has flowed out again into the second septic tank 200 can rise and spread smoothly in the second septic tank 200. Here, the fine bubbles B spreading inside the second septic tank 200 may have a diameter of 10 to 100 μm. However, the present invention is not limited thereto, and may have a diameter of 10 to 1000 μm and may have a diameter of 100 μm or more. On the other hand, FIG. 1 shows that the number of the second wastewater inflow passage 252 is one and the number of the second wastewater outflow passages 254 is two. However, the number of the second wastewater inflow passages 254 is not limited to this. The capacity can be adjusted as needed. The second bubble generator 250 may have substantially the same structure as the first bubble generator 150, and a detailed description thereof will be omitted.

  In the fine bubbles B supplied to the second septic tank 200, the primary sewage waste water (w / w-1) in the second septic tank 200 is discharged from the high-voltage discharger 270, that is, radiated ozone or reticle is diffused. Play a role.

That is, the ozone or the reticle discharged from the high voltage discharger 270 exists only in a specific region, but is present by the fine bubbles B supplied into the second septic tank 200 and filled in the second septic tank 200. The area will be diffused.

Specifically, as shown in FIG. 4, ozone or radicals generated from the high voltage discharger 270 and discharged, such as inorganic hydrogen peroxide, are the surface of the fine bubbles B in the second storage tank 200. Can be diffused by being moved to the surroundings while moving quickly along. That is, compared to the case where the force is discharged from the high voltage discharger 270 or the diffusion phenomenon spreads around the high voltage discharger 270, it is diffused faster along the surface of the surrounding microbubbles B, specifically in a wider range. It can spread over a wider area than the specific area. That is, the fine bubbles B in the second septic tank 200 serve as a bridge that spreads ozone or radicals around, but this increases the range in which ozone or radicals exist in the second septic tank 200. Become. This range of diffusion rapidly increases the surface area of the region in which ozone or radicals are present, so that the secondary purification process can be performed more quickly. Such a secondary purification process is performed in the second septic tank 200 by total nitrogen (T / N, total phosphorogen), total phosphorus (T / P, total phosphorous) of waste water (w / w), and biological oxygen demand. (BOD, Biochemical Oxygen Demand), Chemical Oxygen Demand (COD, Chemical Oxygen Demand), Suspended Contaminants (SS, Suspended Sequendment) will be reduced or reduced. Thereby, the finally purified water (c / w, Clean Water) can be produced.

  In addition to this, the fine bubbles B in the second purification tank 200 can additionally purify the floating contaminant SS that could not be removed even in the primary purification process in the first purification tank 100. That is, when the second bubble generator 260 is activated, the second septic tank 200 can be filled with the fine bubbles B after a predetermined time has elapsed. Here, the predetermined time may be about 5 minutes (the time required until it fills up visually is about 30 seconds to 1 minute), which is the capacity of the first bubble generator 150 and the first septic tank 100. However, the present invention is not limited to the same as described in relation to the first septic tank 100. The fine bubbles B in the second septic tank 200 not only diffuse ozone or radicals in the vicinity of the high voltage discharger 270 of the high voltage discharge device 260, but also the first purification of the first septic tank 100 in other regions. In the same way as the process, it can serve to remove suspended contaminants (SS).

  Like this, the purified water (c / w, Clean Water) that has undergone the primary purification process of the first septic tank 100 and the secondary purification process of the second septic tank 200 is nitrogen (T / N, Total Nitrogen), total phosphorus ( T / P, Total Phosphorus, BOD (Biochemical Oxygen Demand), Chemical Oxygen Demand (COD, Chemical Oxygen Demand), Suspended Contaminant (SS) It can be clean water (c / w, Clean Water) that has been lowered and purified. The water thus purified can be discharged outside the purification chamber 10 through the purified water outflow pipe 20. Meanwhile, the purified water outflow pipe 20 may be provided with a valve V / 2 for discharging only water that has been purified in the second septic tank 200.

  Meanwhile, the first purification process in the first septic tank 100 and the second purification process in the second septic tank 200 are basically for purifying waste water. Therefore, contaminated air containing malodors and the like exists in the vicinity of the first septic tank 100 and the second septic tank 200.

  Accordingly, as shown in FIG. 1, in the wastewater purification treatment system 1 according to the embodiment of the present invention, the first purification tank 100 and the second purification tank 200 are located in the purification chamber 10, and the purification chamber 10 is disconnected from the outside. Thus, the contaminated air around the first septic tank 100 and the second septic tank 200 is prevented from flowing out.

  However, a waste water outflow pipe 110 for allowing waste water (w / w) to flow into the first purification tank 100 is extended to the outside of the purification chamber 10, and a purified water outflow pipe 2 for discharging the purified water is provided. It extends to the outside. Further, the purification chamber 10 has an external air inflow pipe 12 for allowing air to flow into the purification chamber 10 and an internal air outflow pipe 14 through which the air of the purification chamber 10 can be discharged to the outside. It is equipped.

  Here, the wastewater inflow pipe 110 and the purified water outflow pipe 20 are equipped with valves V2 and V3, respectively, and are opened only when necessary. Further, although not shown in the drawings, the external air inflow pipe 12 is provided with a one-way control valve to prevent the air inside the purification chamber 10 from flowing out through the external air inflow pipe 12, and the internal air outflow pipe 14. Is provided with a valve V4 that controls the outflow of the internal air of the purification chamber 10. Accordingly, when the valves V2, V3, and V4 are closed, the internal air in the purification chamber 10 may not flow out to the outside.

  Here, the internal air outflow pipe 14 is connected to a high voltage discharge air purifier 300 for purifying the internal air flowing out from the purification chamber 10. Although not shown in the drawings, the internal air outflow pipe 14 is provided with an air pump, so that the air inside the purification chamber 10 is forced out.

  Although not shown in the drawing, a high voltage discharger (not shown) is provided inside the high voltage discharge air cleaner 300. The high-voltage discharger provided in the high-voltage discharge air cleaner 300 has a structure similar to the previous high-voltage discharger 260, and can be redesigned from the standpoint of those skilled in the art so as to be suitable for air purification. Of course.

  Therefore, if the valve V4 on the internal air outflow pipe 14 is opened and the internal air in the purification chamber 10 flows into the high voltage discharge air purifier 300, the high voltage discharge air purifier (relaxation is performed with clean air. The air purified in this way can be used as a child by the purified air outlet pipe connected to the high voltage discharge air cleaner 300.

  Such purification by the high-voltage discharge air cleaner 300 purifies the contaminated air inside the purification chamber 10 in two stages. That is, as described above, the contaminated air in the purification chamber 10 is purified by one stage by the high voltage generator 270 located at the upper part of the second septic tank 200, and further, the high voltage discharge air cleaning is performed through the internal air outflow pipe 14. The internal air flowing into the machine 300 will be purified in two stages. Accordingly, the purified air that is purified by the high voltage discharge air cleaner 300 and then flows out to the outside can be clean purified air.

On the other hand, in FIG. 1, the first bubble generator 150 and the second bubble generator 250 are connected to the first septic tank 100 and the second septic tank 200, respectively, and the first bubble generator 150 and the second bubble generator are respectively connected. The generator 250 is illustrated as having separate microbubble generators 156 and 256, and microbubbles are supplied through the microbubble generators 156 and 256. However, the present invention is not limited to this, and the first bubble generator 150 and the second bubble generator 250 are of course constituted by one structure.

  That is, the first wastewater inflow passage 152, the first wastewater outflow passage 154, the second wastewater inflow passage 252 and the second wastewater outflow passage 254 exist separately, and the first wastewater inflow passage 152 and the second wastewater inflow passage 252 are provided separately. There may be one fine bubble feeder (not shown) for supplying fine bubbles to the nozzle. In other words, one fine bubble feeder can supply fine bubbles so that waste water containing fine bubbles can flow out to the first waste water outflow passage 154 and the second wastewater outflow passage 254.

  Although the present invention has been described in detail through the representative embodiments, those having ordinary knowledge in the technical field to which the present invention belongs can be used in various ways without departing from the scope of the present invention. It should be understood that various modifications are possible.

  Accordingly, the scope of the present invention should not be determined by being limited to the embodiments described, but should be determined not only by the claims described below, but also by the equivalents of the claims.

1: Wastewater purification treatment system 10: Purification chamber 12: External air inflow pipe 14: Internal air outflow pipe 100: First storage tank 150: First bubble generator 152: First wastewater inflow pipe 154: First wastewater outflow pipe 200 : Second storage tank 250: second bubble generator 252: second wastewater inflow pipe 254: second wastewater outflow pipe 260: high voltage discharge device 262: air inflow pipe 266: cover 270: high voltage discharger 270-1: Cylindrical tube 270-3: Support base 270-5: Metal mesh 270-7: External electrode 270-9: Internal electrode (270-9)
B: Fine bubbles c / w: Clean water
V1, V2, V3, V4: Valve w / w: Waste water
w / w-1: Primary purification wastewater SS: Airborne contaminants

Claims (3)

A wastewater purification treatment system for purifying wastewater,
A purification chamber;
Waste water flowing from the outside of the purification chamber is stored in the purification chamber, and fine bubbles are adsorbed on the outer surface of the floating contaminants that are floating in the waste water. A first septic tank in which the wastewater is primarily purified by being collected and suspended; and the primary purification is performed only with fine bubbles;
Wherein the so that fine bubbles for primary purification horses within the first septic tank, a first bubble generator to flow out waste water is flowing into the first septic tank with fine bubbles from said first septic tank,
Located in the purification chamber, the primary purified wastewater first purified from the first purification tank flows in, and the primary purified wastewater is secondarily purified using high voltage discharge and fine bubbles simultaneously. A second septic tank;
Located on top of the second septic tank, the purification chamber inside the air is introduced through air inlet pipe, the purification chamber inside air with purifying one stage, said primary cleaning waste water inside the second septic tank A high-voltage discharge device that discharges ozone and radical ions
In order to generate fine bubbles that allow ozone and radical ions discharged from the high-voltage discharge device in the upper part of the second septic tank to be diffused into the second septic tank, the first septic tank 1 A second bubble generator for allowing the next purification wastewater to flow into the second purification tank together with the fine bubbles;
A high-voltage discharge air cleaner that purifies the air flowing out of the purification chamber in two stages with a high-voltage discharge and discharges it outside,
Wastewater using high voltage discharge and fine bubbles for purifying the wastewater flowing from the outside by the primary purification and the secondary purification, and purifying the air inside the purification chamber by the first stage purification and the second stage purification. Purification system. The high voltage discharge according to claim 1, wherein the wastewater flowing into the first septic tank includes one or more of food wastewater, dyeing wastewater, livestock wastewater, papermaking wastewater, and starch wastewater. And wastewater purification system using fine bubbles . The high-voltage discharge and wastewater purification using the fine bubbles according to claim 1, wherein the first bubble generator and the second bubble generator are supplied with fine bubbles from one fine bubble generator. Processing system.

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