KR20170006857A

KR20170006857A - Waste water purification treatment system using a high-voltage discharge port and nano bubble

Info

Publication number: KR20170006857A
Application number: KR1020150098163A
Authority: KR
Inventors: 문영근
Original assignee: 문영근
Priority date: 2015-07-10
Filing date: 2015-07-10
Publication date: 2017-01-18

Abstract

Disclosed is a waste water purification treatment system using high-voltage discharge and ultrafine bubbles. A wastewater purification system according to an embodiment of the present invention includes a first purification tank for storing wastewater flowing from the outside and firstly purifying wastewater with ultrafine bubbles; A first bubble generator for introducing the wastewater from the first purification tank and discharging the wastewater together with the ultrafine bubbles to the first purification tank to generate ultrafine bubbles for the first purification in the first purification tank; A second purification tank for introducing the primary purification wastewater that is first purified from the first purification tank and for secondary purification of the wastewater by high voltage discharge and ultrafine bubbles; A high voltage discharge device located at an upper portion of the second purification tank and discharging ozone or radical ions to the primary purification wastewater in the second purification tank; The first purification wastewater flows from the second purification tank into the second purification tank together with the ultrafine bubbles in order to generate ultrafine bubbles for expanding ozone or radical ions discharged from the high-voltage discharge device in the second purification tank A second bubble generator; A purification chamber in which the first and second purification tanks are located; And a high voltage discharge air purifier for purifying air discharged from the purge chamber by high voltage discharge and discharging the discharged air to the outside.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wastewater purification system using a high-voltage discharge and ultra-fine nano bubbles,

Environment

General water (water) treatment technology can be roughly divided into physical and chemical treatment, biological treatment, and multistage treatment. At present, much research is going on to see better water treatment effects beyond these technologies, and a lot of research has been conducted mainly on a technology called so-called advanced water treatment technology.

The advanced water treatment technology can be classified as follows: 1) electrochemical technology, 2) water treatment technology using electricity and magnet, 3) water treatment technology using ultraviolet rays, 4) Water treatment technology.

Unlike conventional water treatment technology, water treatment technology using high-voltage discharge does not require the input of chemicals, the treatment process is simple, and secondary pollution is not generated. Recently, a new concept of water treatment technology Has been highlighted. High-voltage discharges include pulse streamer discharge, silent discharge, partial discharge, surface discharge and corona discharge. Studies on electric discharge for the treatment of water pollutants have been actively carried out in USA, Japan, Netherlands, Czech Republic, Russia and Canada since the late 1980s. When high voltage pulse discharges are generated in water or on the surface of water, various physicochemical processes are initiated to generate UV, shock waves, and chemically active species such as H, O, OH, hydrogen peroxide (H2O2) When oxygen is present in the background gas, it is known that ozone and active radicals are generated at high concentrations in the gas generated near the surface, and they are easily dissolved in water and can participate in the pollutant removal process.

When the air is used as the inflow gas of the high-voltage discharge device, radicals such as O 3, OH, H, N, and HO 2 are generated, and these unstable products are secondarily reacted with pollutants or oxygen, ) Or a new type of radical is formed. This oxidation reaction is widely applied to the purification of pollutants such as disinfection substances, harmful gases in the atmosphere, odor, chromaticity and sterilization treatment of waste water and wastewater .

At present, the high voltage discharge technique for water treatment has been studied so much, and it has been proved by the academic experiment that the effect is good when the water is purified by high voltage discharge, and its value is recognized.

Furthermore, recently, a technique has been proposed in which secondary purification is performed by generating secondary bubbles in wastewater purified by high voltage discharge. However, in this case, the purification by the high voltage discharge and the purification by the bubble are performed independently. This independent two-stage purge is merely a parallel process of purifying by high-voltage discharge and purifying by bubble. In addition, since it is merely to purify by high voltage discharge and to further purify wastewater purified by high voltage discharge with bubbles, it takes almost the same time as compared with the case of purifying only by high voltage discharge.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, this is merely an example and the present invention is not limited thereto. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and may be changed according to the intention or custom of the user, the operator, and the like. Therefore, the definition should be based on the contents throughout this specification.

The technical idea of the present invention is determined by the claims, and the following embodiments are merely a means for effectively explaining the technical idea of the present invention to a person having ordinary skill in the art to which the present invention belongs.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of an apparatus for purifying a wastewater using high-voltage discharge and ultrafine bubbles according to an embodiment of the present invention; FIG. 1, a wastewater purification system 1 using high voltage discharge and ultrafine bubbles according to an embodiment of the present invention includes a first purification tank 100 and a second purification tank 200 in a purification chamber 10, . In the wastewater purification system 1 using high voltage discharge and ultrafine bubbles according to the embodiment of the present invention, after the wastewater is firstly purified by ultrafine bubbles in the first purification tank 100, 2 purification tank 200 and is secondarily purified by the action of a high-voltage discharge and ultrafine bubbles. As a result, the SS, Suspended Sediment and the like are firstly removed through the first purification process, and then the secondary purification is performed by the cooperation of the high voltage discharge and the ultrafine bubbles. Thus, the wastewater purification system 1 using the high-voltage discharge and ultrafine bubbles according to the embodiment of the present invention can quickly remove the high concentration non-degradable wastewater.

First, the first purification tank 100 receives wastewater (w / w) from the outside through a wastewater inlet pipe 110. The incoming wastewater may include sewage, wastewater, sewage, etc. discharged from various facilities such as the home, factory, and enrichment industry. Further, it may include food wastewater, dyeing wastewater, livestock wastewater, paper wastewater, starch wastewater, etc., which are high-concentration degradation wastewater.

The introduced wastewater is first purified by ultrafine bubbles in the first purification tank 100, that is, the first purification tank 100 stores the introduced wastewater and purifies it first. The first purification in the first purification tank 100 is carried out by trapping contaminants in the microbubbles.

To this end, the first purifier 100 is in fluid communication with the first bubble generator 150. That is, the first bubble generator 150 receives the wastewater in the first purification tank 100 from the first wastewater inflow passage 152 connected to the side of the first purification tank 100. Thereafter, the first bubble generator 150 injects ultrafine bubbles into the wastewater flowing into the first bubble generator 150, and then passes through the first wastewater discharge passage 154 again to the first purified water tank 100, . The first wastewater outflow path 154 may have one end connected to the first bubbler 150 and the other end connected to the lower surface of the first purification tank 100. The first wastewater outflow path 154 Since the other end is connected to the lower surface of the first purification tank 100, ultrafine bubbles contained in the wastewater discharged to the first purification tank 100 can be smoothly spread in the first purification tank 100 Here, the ultrafine bubbles B spreading inside the first purification tank 100 may have a diameter of 10 to 100 nm (nano). However, the present invention is not limited to this, and it may have a diameter of 10 to 1000 nm (nano), or may have a diameter of 100 nm (nano) or more. 1, the number of the first wastewater inflow passages 152 is two and the number of the first wastewater outflow passages 154 is two. However, the number of the first wastewater inflow passages 152 is not limited to the capacity of the first purification tank 100 Or can be determined as needed. For example, three or more first wastewater outflow paths 154 may be provided in order to make the first purifying tank 100 bulky or to allow ultrafine bubbles to spread more rapidly in the first purification tank 100 . Further, although not shown in the drawings, the first effluent outflow path may be two or more branch pipes branched from one main outflow path.

The microbubbles B supplied into the first purification tank 100 are first purified from the wastewater (w / w) in the first purification tank 100. When the first bubble generator 150 is activated, the first purification tank 100 can be filled with the ultra-small bubbles B after a predetermined time elapses. Here, the predetermined time is about 5 minutes But may be different depending on the capacity of the first bubble generator 150 and the size of the first purification tank 100. However, the present invention is not limited thereto. The total amount of nitrogen (T / N, Total Nitrogen), total phosphorus (T / P, total phosphorus), biological oxygen demand (BOD, Biochemical Oxygen Demand, Chemical Oxygen Demand (COD), and Suspended Sediment (SS). Here, the suspended pollutant (SS) is a contaminant present in the wastewater and is present in food wastewater, dyeing wastewater, livestock wastewater, paper wastewater, and starch wastewater, and is one of the pollutants that are difficult to remove. In the first purification tank 100, the ultrafine bubbles B are adsorbed on the outer surface of the suspended contaminant SS to collect the suspended contaminant SS. The ultra-microbubbles B having a density lower than that of the wastewater are subjected to a force (buoyancy) for moving the wastewater upward in the first purification tank 100. The floating contaminant SS is supplied to the first purification tank 100 together with the ultra-microbubbles B by receiving the buoyancy force in the state in which the super- In the upper part of the waste water. 1, it can be confirmed that the suspended particulate matter (SS) floats on the upper part of the first purification tank (100). As described above, the pollutant including the floating pollutant SS floating on the upper portion of the wastewater in the first purification tank 100 is easily removed by the pollutant removal operation on the upper part of the first purification tank 100 .

Thus, the pollutant containing the floating pollutant SS is firstly removed from the wastewater (w / w) in the first purification tank 100. In the present specification, this is referred to as " car purifying process ". This primary purification process allows quick and efficient removal of suspended solid contaminants (SS) that take a considerable amount of time when removed by high voltage discharge, thereby providing a secondary purification process (high voltage discharge and ultrafine bubble And the time required for the purification process (for example, the purification process by the process). The first purified wastewater purified through the first purification process can be moved to the second purification tank 200 through the first purification tank wastewater discharge pipe 120 in accordance with the opening of the first valve V1. One end of the first purified water tank effluent discharge pipe 120 may be coupled to a lower portion of the first purification tank 100 and the other end may be coupled to an upper portion of the second purification tank 200. The first valve (V1) may be provided in the first purified water tank effluent discharge pipe (120). In addition, although not shown in the drawing, a separate pump may be provided to transfer the primary purified wastewater through the first purified water tank effluent discharge pipe 120.

In FIG. 1, the other end of the first purified water tank effluent discharge pipe 120 is positioned higher than the other end. However, the present invention is not limited to this, and it is needless to say that the other end may be located at a position lower than one end of the one purification tank wastewater discharge pipe 120. For example, the first purification tank 100 is located above the second purification tank 200, and one end of the first purification tank wastewater discharge pipe 120 connected to the first purification tank 100 is connected to the second purification tank 200, The waste water outlet pipe 120 may be located at a position higher than the other end of the first purified water tank effluent pipe 120 connected to the waste water outlet pipe 120. In this case, the first purification wastewater can move along the first purification tank wastewater discharge 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 purification wastewater flowing into the second purification tank 200 through the first purification tank wastewater discharge pipe 120 is secondarily purified in the second purification tank 200. Secondary purification is achieved by the simultaneous action of high voltage discharge and ultrafine bubbles. For this second purification, the second purification tank 200 is provided with a high voltage discharge device 260 in the upper part thereof, and is in fluid communication with the second bubble generator 250.

The high voltage discharge device 260 is located above the second purification tank 200 and generates ozone or radical ions from the air introduced from the outside by high voltage discharge. For this purpose, the high voltage discharge device 260 may include various types of devices, such as a dielectric barrier discharge (DBD) source, an inductively coupled plasma (ICP) source, a capacitively coupled plasma (CCP) a transformer coupled plasma source, an electron cyclotron resonance (ECR) source, a surface wave plasma (SWP) source, and the like. The high-voltage discharge device 260 generates ozone or radical ions from the air introduced from the outside by using a high-voltage discharge, and can purify the primary purified wastewater by using it. Specifically, the high voltage discharge device 260 of the present invention can perform the function of treating the primary purified wastewater by applying an electric field to the primary purified wastewater. During this process, the incoming air is ionized, and 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 have an air inlet pipe 262 for introducing air. The high voltage discharge device 260 can be located above the second purifier 200 because it is being stored and / or moved in the second purifier 200 and the lighter ozone or radical And more effectively reacts in the wastewater and / or on the surface. 2 and 3, the high voltage discharge device 260 according to the 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 is formed by combining one or more high voltage discharge units 270.

3, the high voltage discharge unit 270 includes a cylindrical tube 270-1, a support 270-3, a metal mesh 270-5, an external electrode 270- 7); And may include an internal electrode 270-9. First, the cylindrical tube 270-1 is a basic structure of the high voltage discharge unit 270 according to the embodiment of the present invention, and both ends thereof may be opened and made of a dielectric material. The cylindrical tube 270-1 includes therein an internal electrode 270-9, and its shape is specifically limited

. One end of the cylindrical tube 270-1, that is, an upper end thereof may be opened to be coupled to the supporter 270-3, and the other end, that is, the lower end thereof may be entirely or partially opened. The cylindrical tube 270-1 is disposed between the electrodes disposed on the inner and outer sides of the cylindrical tube 270-1 and may be made of an insulating material. In addition, it may be a quartz tube made of quartz or a dielectric. Thus, when a current is applied to the external electrode 270-7 and the internal electrode 270-9, the electric field is reduced due to the polarization of the dielectric substance, and the electric capacity is relatively increased. Accordingly, in the embodiment of the present invention, the dielectric can be used as the cylindrical tube 270-1 to maximize the avalanch effect while maintaining the current flow at the highest level. Further, one end of the cylindrical tube 270-1 may be coupled to the support table 270-3. The support table 270-3 supports the respective components of the cylindrical tube 270-1 and the high voltage discharge unit 270 including the cylindrical tube 270-1. In addition, the support table 270-3 can serve to distinguish between a region in which high-voltage discharge is performed and a region in which current and air are introduced. The material and the shape of the support table 270-3 are not particularly limited, and may be made of, for example, a nonconductive material. The metal mesh 270-5 may surround the outside of the cylindrical tube 270-1 and may function as a mesh electrode connected to the outer electrode 270-7 and having a mesh shape. Such a net-like hole can maximize the corona discharge. That is, it is possible to increase the electron generation efficiency by partially concentrating the charge while increasing the charging area, thereby increasing the generation of the corona discharge and suppressing the arc discharge. Further, the material and shape of the metal mesh 270-5 are not particularly limited, but may be formed of a conductive material, for example, stainless steel. Further, it may be formed over the whole or a part of the upper portion and the lower portion thereof about the center of the cylindrical tube 270-1. The external electrode 270-7 penetrates through the support 270-3 and is connected to the metal mesh 270-5. The external electrode 270-7 may be located outside the cylindrical tube 270-1 and supplies current to the metal mesh 270-5. To this end, the external electrode 270-7 may be formed through the support 270-3. The internal electrode 270-9 may be positioned inside the cylindrical tube 270-1 through the support table 270-3. The internal electrode 270-9 is an electrode facing the external electrode 270-7, and a high-voltage discharge is performed across the cylindrical tube 270-1. For this, the material and the shape of the internal electrode 270-9 may be variously formed, and may be, for example, a plate-shaped conductor made of a Spanish stainless steel.

The air transfer pipe 264 may be formed integrally with the internal electrode 270-9. The inner electrode 270-9 is formed in a tubular shape and air can be passed into the inner electrode 270-9 to transfer air into the cylindrical tube 270-1. Since the insulating capacitor is formed between the outer electrode 270-7 and the inner electrode 270-9 by air and then a high voltage discharge is caused through the insulating capacitor, the air transfer pipe 264 is connected to the high voltage discharge To the inside of the cylindrical tube 270-1. Although the air transfer tube 264 is integrated with the internal electrode 270-9 in the embodiment of the present invention, the air transfer tube 264 is not limited to the internal electrode 270-9, but may be a separate tube different from the internal electrode 270-9. to be. In addition, the air supplied to the high voltage discharge unit 270 according to the embodiment of the present invention may be air in the purge chamber 10. That is, the high voltage discharge unit 270 supplies the high voltage discharge unit 270 with ozone or radicals The odor generating substance contained in the air in the purifying chamber 10 can be reduced and / or eliminated by using the air in the purifying chamber 10 as the air to be supplied.

The high voltage discharger 270 of the present invention having such a configuration has the following operating relationship. First, in case of a DC power supply, a + power source is connected to the internal electrode 270-9 protruded toward the upper end of the support table 270-3 to intermittently apply a boosted voltage, and the external electrode 270- 7) - Connect the power source. Then, the outer electrode 270-7 and the inner electrode 270-9 are charged to each other with the cylindrical tube 270-1 as a dielectric. In this state, the energy injected by the high voltage forms an electric field inside the cylindrical tube 270-1, which is a barrier like a semiconductor phenomenon, and the generated electrons are injected into the cylindrical tube 270-1 due to heat energy, The electrons of the generated electrons are discharged to attract oxygen molecules in the vicinity of the outer circumference of the cylindrical tube 270-1. At this time, Becomes an energy that oxygen molecules can easily absorb. Usually, the ion lifetime depends on the energy.

Thus, the oxygen molecule gets the two electrons produced and is transformed into an unstable inorganic oxygen peroxide (O-22), or O-2, which is a peroxide radical. Since the inorganic oxygen peroxide is radially formed around the cylindrical tube 270-1, a large amount of inorganic oxygen peroxide is generated instantaneously over a large area. These inorganic oxygen peroxides can react directly or indirectly with the organic matter contained in the primary purification wastewater, and the wastewater can be purified by such a reaction. For example, the hydration radicals (radicals) can react with NH4, one of the organic materials, to produce N2 and H2O. The reaction of hydration radicals as described above can be extended to all the organic matter contained in the wastewater, and the primary purification wastewater can be subjected to the secondary purification treatment due to the reaction between the hydration radical and the organic matter. Also, the inorganic oxygen peroxides penetrate into cell membranes such as pathogens and viruses through radical action, neutralize and destroy them, decompose volatile organic compounds (VOC), change substances such as methane into water and carbon dioxide, , It is decomposed into water and a very small amount of sulfuric acid. Particularly, it exerts an excellent effect in removing odor, and it does not collect more than 20 kinds of known odor, but decomposes and disappears, thereby enabling complete elimination. The high voltage discharger 270 according to the present invention is an air delivered to the inside of the cylindrical pipe 270-1 by the air transfer pipe 60 and the contaminated air in the purge chamber 10 It is possible to constantly purify the air contaminated with odor or the like in the purifying chamber 10. [ The external electrodes 270-7 and the internal electrodes 270-9 are sequentially charged and discharged by the capacitors formed by the insulating air between the external electrodes 270-7 and the internal electrodes 270-9, A change in the surface characteristics or loss of the surface of the cylindrical tube 270-1 existing between the two tubes is disadvantageous. To this end, in 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, and the external electrode 270-7, And the internal electrode 270-9 can be continuously used. Here, the high voltage discharge device 260 has a form in which one or more of these high voltage discharge devices 270 are coupled. 2, the high voltage discharge device 260 includes a high voltage discharge device 270 coupled to a cover 266 constituting a lower portion of the high voltage electrical discharge device body 280, And the support table 270-3 is coupled to the upper side. The lid 266 may be a lid 266 which constitutes the upper surface of the second purifying tank 200 and covers the upper portion of the second purifying tank 200. A high voltage discharge unit 270 and a current supply unit 268 for supplying a current to the internal electrode 270-9 may be disposed in the high voltage discharge apparatus body 280. [ The high voltage discharge apparatus main body 280 may include an air pipe 262-1 connected to an air transfer pipe 264 which communicates with the air inlet pipe 262 and supplies air to each of the high voltage discharge devices . Thus, air introduced from the air inflow pipe 262 can be transferred to the high voltage discharger 270 through the air transfer pipe 264 through the air pipe 262-1.

2, a part of the high voltage discharge unit 270 may protrude to the outside of the high voltage discharge unit main body 280. As shown in FIG. As shown in Fig. 1, the high voltage discharge unit 270 thus protruded may be partially submerged in the primary purification wastewater. However, the present invention is not limited to this, and a chamber (shown) in which ozone and radicals emitted from the high voltage discharge unit 270 are collected is separately provided under the high voltage discharge device 260, and a discharge pipe And may be immersed in the primary purification wastewater. Accordingly, ozone or radicals generated from the high-voltage discharger 270 can be supplied into the primary purification wastewater (w / w-1) in the second purification tank 200.

Here, the ozone or radicals supplied into the primary purification wastewater (w / w-1) are subjected to reaction (purification reaction) or oxidation reaction with the primary purification wastewater (w / w-1) in the second purification tank 200 The high-voltage discharge unit 270 is caused to gather around the high-voltage discharge unit 270. In other words, the ozone or radical can not be extended outside the high voltage discharge unit 270, and the ozone or the radical is located only in a specific region near the ozone or radical is emitted from the high voltage discharge unit 270. When such ozone or radicals can not be expanded in the second purification tank 200, the second purification is performed only in a very limited area, so that the time required for the second purification process becomes very long. Accordingly, in the wastewater purification system 1 according to the embodiment of the present invention, as shown in FIG. 1, the second purification tank 200 is in fluid communication with the second bubble generator 250. That is, the second bubble generator 250 receives the wastewater in the second purification tank 200 from the second wastewater inflow passage 252 connected to the side of the second purification tank 200. Thereafter, the second bubble generator 250 injects ultrafine bubbles into the wastewater flowing into the second bubble generator 250, and then passes through the second wastewater discharge passage 254 to the second bubble generator 200, . Here, the second wastewater outflow passage 254 may have one end connected to the second bubbler 250 and the other end connected to the lower surface of the second purification tank 200. The ultrafine bubbles contained in the wastewater flowing out to the second purification tank 200 again rise in the second purification tank 200 and can spread smoothly. Here, the ultra-microbubbles B spreading inside the second purification tank 200 may have a diameter of 10 to 100 nm (nano). However, the present invention is not limited to this, and it may have a diameter of 10 to 1000 nm (nano), or may have a diameter of 100 nm (nano) or more. 1 shows one second wastewater inflow passage 252 and two second wastewater outflow passages 254, but the present invention is not limited thereto. The number of the second wastewater inflow passages 252 is not limited to the capacity of the second purification tank 200 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. The ultrafilter bubbles B supplied into the second purifying tank 200 are discharged from the high-voltage discharger 270, that is, emitted ozone or radicals (w / w-1) in the second purifying tank 200, As shown in FIG. That is, the ozone or the lacquer discharged from the high voltage discharge unit 270 is present only in a specific region. The ozone or the latent gas discharged from the high-voltage discharge unit 270 is supplied to the second purifying tank 200, Area is expanded.

4, ozone or radicals, such as inorganic hydrogen peroxide, generated and discharged from the high voltage discharge unit 270 may flow along the surface of the ultrafine bubble B in the second reservoir 200, It can be moved around and expanded while moving rapidly. In other words, as compared with the case where it is spread around the high voltage discharger 270 due to the force or diffusion phenomenon discharged from the high voltage discharge unit 270, it is possible to quickly expand along the surface of the surrounding ultrafine bubble B, It can be spread over an area wider than a specific area. That is, the ultrafine bubbles B in the second purification tank 200 serve as bridges for spreading ozone or radicals around. Thus, the range in which ozone or radicals exist in the second purification tank 200 is widened do. The expansion of this range rapidly increases the surface area of the area where ozone or radicals exist, thus making the secondary purification process faster. This second purification process is performed in the second purification tank 200 in such a manner that the total nitrogen (T / N, Total Nitrogen), total phosphorus (T / P, Total Phosphorus), biological oxygen demand (BOD, Biochemical Oxygen Demand, Chemical Oxygen Demand (COD), and Suspended Sediment (SS). In addition, the ultrafilter bubbles B in the second purification tank 200 can be also purified in the first purification tank 100 in the first purification tank 100, It is possible to further purify the suspended solid pollutants (SS) that have not been removed. That is, when the second bubble generator 250 is activated, after a predetermined time has elapsed, the inside of the second purification tank 200 may be filled with the ultrafine bubble B. In this case, the predetermined time may be about 5 minutes (the time required until visually full is about 30 seconds to 1 minute), but it is not limited to the capacity of the first bubbler 150 and the size of the first purification tank 100 But the present invention is not limited thereto as described with respect to the first purification tank 100. The ultrafine bubbles B in the second purification tank 200 not only extend the ozone or radical in the vicinity of the high voltage discharge device 270 of the high voltage discharge device 260 but also extend in the first purification tank 100, As in the case of the first purification process of the present invention, it is possible to remove Suspended Sediment (SS).

As described above, the purified water (c / w) after passing through the first purification process of the first purification tank 100 and the second purification process of the second purification tank 100 includes total nitrogen (T / N, Total Nitrogen) (T / P, Total Phosphorus), Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Suspended Sediment (SS) Water (c / w, Clean Water). The clean purified water can be discharged to the outside of the purification chamber 10 through the purified water outlet pipe 20. On the other hand, the purified water outlet pipe 20 may be provided with a valve V2 for discharging only the purified water from the second purification tank 200.

Meanwhile, during the first purification process in the first purification tank 100 and the second purification process in the second purification tank 200, the waste water is basically purified. Accordingly, contaminated air containing odor or the like is present in the vicinity of the first and second purification tanks 100 and 200.

1, in the wastewater purification 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, The chamber 10 is shielded from the outside so that contaminated air in the vicinity of the first and second purification chambers 100 and 200 is prevented from flowing out.

The wastewater inflow pipe 110 for introducing the wastewater (w / w) into the first purification tank 100 is extended to the outside of the purification chamber 10, and a purified water outlet pipe for discharging the purified water 20 extend outwardly. The purge chamber 10 is provided with an external air inlet pipe 12 for allowing air to flow into the purge chamber 10 and an internal air outlet pipe 14 ).

The wastewater inlet pipe 110 and the purified water outlet pipe 20 are provided with valves V2 and V3, respectively, and are opened only when necessary. Further, although not shown in the drawing, the external air inlet pipe 12 may be provided with a one-way valve so that the air inside the purge chamber 10 does not flow out through the external air inlet pipe 12, The pipe (14) is provided with a valve (V4) for interrupting the flow of the air inside the purifying chamber (10). Accordingly, when the valves V2, V3, and V4 are closed, the internal air in the purge chamber 10 may not flow out.

The inner air outlet pipe 14 is connected to a high voltage discharge air purifier 300 for purifying the internal air flowing out of the purge chamber 10. Although not shown in the drawings, it is needless to say that the air inside the purge chamber 10 can be forcibly drained by providing an air pump in the inner air outlet pipe 14. [

Although not shown in the drawing, a high-voltage discharge unit (not shown) is provided inside the high-voltage discharge air purifier 300. The high voltage discharge device provided in the high voltage discharge air purifier 300 may have the same structure as the high voltage discharge device 260 described above and may be modified in view of those skilled in the art in order to be suitable for purifying the air.

Accordingly, when the valve V4 on the inner air outlet pipe 14 is opened and the internal air of the purge chamber 10 flows into the high voltage discharge air purifier 300, the high voltage discharge air purifier 300 supplies the inside air to the clean air . &Lt; / RTI > The purge air can be discharged to the outside through the purge air outlet pipe 310 communicated with the high voltage discharge air purifier 300.

The purge by the high voltage discharge air purifier 300 purifies contaminated air inside the purge chamber 10 in two steps. That is, as described above, the contaminated air in the purge chamber 10 is purified by the high-voltage generator 270 located in the upper portion of the second purifier 200, and further the internal air outlet pipe 14 The internal air introduced into the high-voltage discharge air purifier 300 is purified in two stages. Thus, the purified air discharged from the high-voltage discharge air purifier 300 after being purified may be clean purified air.

1, a first bubble generator 150 and a second bubble generator 250 are connected to the first and second purification bins 100 and 200, respectively, It is shown that the first bubble generator 150 and the second bubble generator 250 are separately provided with ultrafine bubble generators 156 and 256 to supply ultrafine bubbles through the respective ultrafine bubble generators 156 and 256 . The first bubble generator 150 and the second bubble generator 250 may be constructed as a single structure. That is, the first bubble generator 152 and the first wastewater outlet The second wastewater inflow passage 252 and the second wastewater inflow passage 254 are separately provided to supply the fine bubbles to the first wastewater inflow passage 152 and the second wastewater inflow passage 252 There may be one fine bubble feeder (not shown). In other words, one ultrafine bubble supplying unit may supply ultrafine bubbles so that wastewater containing ultrafine bubbles can flow out into the first effluent outflow path 154 and the second effluent outflow path 254 .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, I will understand. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the appended claims as well as the appended claims

According to an aspect of the present invention, there is provided a waste water treatment system comprising: A first bubble generator for introducing the wastewater from the first purification tank and discharging the wastewater into the first purification tank together with the ultrafine bubbles in order to generate ultra-fine bubbles for generating the ultra-high strength bubbles for the first purification in the first purification tank; A second purification tank for introducing the primary purification wastewater that is first purified from the first purification tank and for secondary purification of the wastewater by high voltage discharge and ultrafine bubbles; A high voltage discharge device located at an upper portion of the second purification tank and discharging ozone or radical ions to the primary purification wastewater in the second purification tank; The first purification wastewater flows from the second purification tank into the second purification tank together with the ultrafine bubbles to generate ultrafine bubbles that allow the ozone and radical ions discharged from the high voltage discharge device to expand in the second purification tank. 2 bubble generator; A purification chamber in which the first and second purification tanks are located; And a high voltage discharge air purifier for purifying air discharged from the purge chamber by high voltage discharge and discharging the discharged air to the outside.

Here, the wastewater flowing into the first purification tank may include at least one of food wastewater, dyeing wastewater, livestock wastewater, paper wastewater, and starch wastewater.

Further, the air introduced into the high-voltage discharge device may be air in the purge chamber so that the high-voltage discharge device discharges ozone or radical ions. Furthermore, the first bubble generator and the second bubble generator can receive ultrafine bubbles from one ultrafine bubble generator.

Embodiments of the present invention can enhance purification ability and speed by simultaneously using high voltage discharge and ultrafine bubbles in one reaction tank. In addition, the embodiments of the present invention can purify the high concentration non-decomposable wastewater by simultaneously using the high-voltage discharge and ultrafine bubbles in one reaction tank. Furthermore, the embodiments of the present invention can maximize the efficiency of the wastewater purification process by reducing the time required for purification of wastewater by performing purification using ultrafine bubbles prior to purification by high voltage discharge and ultrafine bubbles. In addition, the contaminated air generated during operation of the waste water purification system can be purified and discharged to the outside.

2 is a configuration diagram of a high-voltage discharge device of a wastewater purification system according to an embodiment of the present invention; Fig.
FIG. 3 is a block diagram of a high-voltage discharger of a wastewater purification system according to an embodiment of the present invention, and FIG. 4 is a diagram illustrating a function of the ultra-microbubble in a second reservoir of a wastewater purification 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 merely an example and the present invention is not limited thereto.

In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and may be changed according to the intention or custom of the user, the operator, and the like. Therefore, the definition should be based on the contents throughout this specification.

The technical idea of the present invention is determined by the claims, and the following embodiments are merely a means for effectively explaining the technical idea of the present invention to a person having ordinary skill in the art to which the present invention belongs. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of an apparatus for purifying a wastewater using high-voltage discharge and ultrafine bubbles according to an embodiment of the present invention; FIG. 1, a wastewater purification system 1 using high voltage discharge and ultrafine bubbles according to an embodiment of the present invention includes a first purification tank 100 and a second purification tank 200 in a purification chamber 10, . In the wastewater purification system 1 using high voltage discharge and ultrafine bubbles according to the embodiment of the present invention, after the wastewater is firstly purified by ultrafine bubbles in the first purification tank 100, 2 purification tank 200 and is secondarily purified by the action of a high-voltage discharge and ultrafine bubbles. As a result, the SS, Suspended Sediment and the like are firstly removed through the first purification process, and then the secondary purification is performed by the cooperation of the high voltage discharge and the ultrafine bubbles. Thus, the wastewater purification system 1 using the high-voltage discharge and ultrafine bubbles according to the embodiment of the present invention can quickly remove the high concentration non-degradable wastewater. First, the first purification tank 100 receives wastewater (w / w) from the outside through a wastewater inlet pipe 110. The incoming wastewater may include sewage, wastewater, sewage, etc. discharged from various facilities such as the home, factory, and enrichment industry. Further, it may include food wastewater, dyeing wastewater, livestock wastewater, paper wastewater, starch wastewater, etc., which are high-concentration degradation wastewater. The introduced wastewater is first purified by ultrafine bubbles in the first purification tank 100, that is, the first purification tank 100 stores the introduced wastewater and purifies it first. The first purification in the first purification tank 100 is carried out by trapping contaminants in the microbubbles. To this end, the first purifier 100 is in fluid communication with the first bubble generator 150. That is, the first bubble generator 150 receives the wastewater in the first purification tank 100 from the first wastewater inflow passage 152 connected to the side of the first purification tank 100. Thereafter, the first bubble generator 150 injects ultrafine bubbles into the wastewater flowing into the first bubble generator 150, and then passes through the first wastewater discharge passage 154 again to the first purified water tank 100, . The first wastewater outflow path 154 may have one end connected to the first bubbler 150 and the other end connected to the lower surface of the first purification tank 100. The first wastewater outflow path 154 Since the other end is connected to the lower surface of the first purification tank 100, ultrafine bubbles contained in the wastewater discharged to the first purification tank 100 can be smoothly spread in the first purification tank 100 Here, the ultrafine bubbles B spreading inside the first purification tank 100 may have a diameter of 10 to 100 nm (nano). However, the present invention is not limited to this, and it may have a diameter of 10 to 1000 nm (nano), or may have a diameter of 100 nm (nano) or more. 1, the number of the first wastewater inflow passages 152 is two and the number of the first wastewater outflow passages 154 is two. However, the number of the first wastewater inflow passages 152 is not limited to the capacity of the first purification tank 100 Or can be determined as needed. For example, three or more first wastewater outflow paths 154 may be provided in order to make the first purifying tank 100 bulky or to allow ultrafine bubbles to spread more rapidly in the first purification tank 100 . Further, although not shown in the drawings, the first effluent outflow path may be two or more branch pipes branched from one main outflow path.

Thus, the pollutant containing the floating pollutant SS is firstly removed from the wastewater (w / w) in the first purification tank 100. In the present specification, this is referred to as " car purifying process ". This primary purification process allows quick and efficient removal of suspended solid contaminants (SS) that take a considerable amount of time when removed by high voltage discharge, thereby providing a secondary purification process (high voltage discharge and ultrafine bubble And the time required for the purification process (for example, the purification process by the process).

The first purified wastewater purified through the first purification process can be moved to the second purification tank 200 through the first purification tank wastewater discharge pipe 120 in accordance with the opening of the first valve V1. One end of the first purified water tank effluent discharge pipe 120 may be coupled to a lower portion of the first purification tank 100 and the other end may be coupled to an upper portion of the second purification tank 200. The first valve (V1) may be provided in the first purified water tank effluent discharge pipe (120). In addition, although not shown in the drawing, a separate pump may be provided to transfer the primary purified wastewater through the first purified water tank effluent discharge pipe 120. In FIG. 1, the other end of the first purified water tank effluent discharge pipe 120 is positioned higher than the other end. However, the present invention is not limited to this, and it is needless to say that the other end may be located at a position lower than one end of the one purification tank wastewater discharge pipe 120. For example, the first purification tank 100 is located above the second purification tank 200, and one end of the first purification tank wastewater discharge pipe 120 connected to the first purification tank 100 is connected to the second purification tank 200, The waste water outlet pipe 120 may be located at a position higher than the other end of the first purified water tank effluent pipe 120 connected to the waste water outlet pipe 120. In this case, the first purification wastewater can move along the first purification tank wastewater discharge 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 purification wastewater flowing into the second purification tank 200 through the first purification tank wastewater discharge pipe 120 is secondarily purified in the second purification tank 200. Secondary purification is achieved by the simultaneous action of high voltage discharge and ultrafine bubbles. For this second purification, the second purification tank 200 is provided with a high voltage discharge device 260 in the upper part thereof, and is in fluid communication with the second bubble generator 250. The high voltage discharge device 260 is located above the second purification tank 200 and generates ozone or radical ions from the air introduced from the outside by high voltage discharge. For this purpose, the high voltage discharge device 260 may include various types of devices, such as a dielectric barrier discharge (DBD) source, an inductively coupled plasma (ICP) source, a capacitively coupled plasma (CCP) a transformer coupled plasma source, an electron cyclotron resonance (ECR) source, a surface wave plasma (SWP) source, and the like. The high-voltage discharge device 260 generates ozone or radical ions from the air introduced from the outside by using a high-voltage discharge, and can purify the primary purified wastewater by using it. Specifically, the high voltage discharge device 260 of the present invention can perform the function of treating the primary purified wastewater by applying an electric field to the primary purified wastewater. During this process, the incoming air is ionized, and the primary purification wastewater can be subjected to secondary purification treatment, which will be described later.

. One end or upper end of the cylindrical tube 270-1 may be open to be coupled to the supporter 270-3 and the other end, that is, the lower end, may be entirely or partially opened. The cylindrical tube 270-1 is disposed between the electrodes disposed on the inner and outer sides of the cylindrical tube 270-1 and may be made of an insulating material. In addition, it may be a quartz tube made of quartz or a dielectric. Thus, when a current is applied to the external electrode 270-7 and the internal electrode 270-9, the electric field is reduced due to the polarization of the dielectric substance, and the electric capacity is relatively increased. Accordingly, in the embodiment of the present invention, the dielectric can be used as the cylindrical tube 270-1 to maximize the avalanch effect while maintaining the current flow at the highest level. Further, one end of the cylindrical tube 270-1 may be coupled to the support table 270-3. The support table 270-3 supports the respective components of the cylindrical tube 270-1 and the high voltage discharge unit 270 including the cylindrical tube 270-1. In addition, the support table 270-3 can serve to distinguish between a region in which high-voltage discharge is performed and a region in which current and air are introduced. The material and the shape of the support table 270-3 are not particularly limited, and may be made of, for example, a nonconductive material.

The metal mesh 270-5 may surround the outside of the cylindrical tube 270-1 and may function as a mesh electrode connected to the outer electrode 270-7 and having a mesh shape. Such a net-like hole can maximize the corona discharge. That is, it is possible to increase the electron generation efficiency by partially concentrating the charge while increasing the charging area, thereby increasing the generation of the corona discharge and suppressing the arc discharge. Further, the material and shape of the metal mesh 270-5 are not particularly limited, but may be formed of a conductive material, for example, stainless steel. Further, it may be formed over the whole or a part of the upper portion and the lower portion thereof about the center of the cylindrical tube 270-1. The external electrode 270-7 penetrates through the support 270-3 and is connected to the metal mesh 270-5. The external electrode 270-7 may be located outside the cylindrical tube 270-1 and supplies current to the metal mesh 270-5. To this end, the external electrode 270-7 may be formed through the support 270-3. The internal electrode 270-9 may be positioned inside the cylindrical tube 270-1 through the support table 270-3. The internal electrode 270-9 is an electrode facing the external electrode 270-7, and a high-voltage discharge is performed across the cylindrical tube 270-1. For this, the material and the shape of the internal electrode 270-9 may be variously formed, and may be, for example, a plate-shaped conductor made of a Spanish stainless steel. The air transfer pipe 264 may be formed integrally with the internal electrode 270-9. The inner electrode 270-9 is formed in a tubular shape and air can be passed into the inner electrode 270-9 to transfer air into the cylindrical tube 270-1. Since the insulating capacitor is formed between the outer electrode 270-7 and the inner electrode 270-9 by air and then a high voltage discharge is caused through the insulating capacitor, the air transfer pipe 264 is connected to the high voltage discharge To the inside of the cylindrical tube 270-1. Although the air transfer tube 264 is integrated with the internal electrode 270-9 in the embodiment of the present invention, the air transfer tube 264 is not limited to the internal electrode 270-9, but may be a separate tube different from the internal electrode 270-9. to be.

In addition, the air supplied to the high voltage discharge unit 270 according to the embodiment of the present invention may be air in the purge chamber 10. That is, the high voltage discharge unit 270 supplies the high voltage discharge unit 270 with ozone or radicals The odor generating substance contained in the air in the purifying chamber 10 can be reduced and / or eliminated by using the air in the purifying chamber 10 as the air to be supplied. The high voltage discharger 270 of the present invention having such a configuration has the following operating relationship. First, in case of a DC power supply, a + power source is connected to the internal electrode 270-9 protruded toward the upper end of the support table 270-3 to intermittently apply a boosted voltage, and the external electrode 270- 7) - Connect the power source. Then, the outer electrode 270-7 and the inner electrode 270-9 are charged to each other with the cylindrical tube 270-1 as a dielectric. In this state, the energy injected by the high voltage forms an electric field inside the cylindrical tube 270-1, which is a barrier like a semiconductor phenomenon, and the generated electrons are injected into the cylindrical tube 270-1 due to heat energy, The electrons of the generated electrons are discharged to attract oxygen molecules in the vicinity of the outer circumference of the cylindrical tube 270-1. At this time, Becomes an energy that oxygen molecules can easily absorb. Usually, the ion lifetime depends on the energy.

Thus, the oxygen molecule gets the two electrons produced and is transformed into an unstable inorganic oxygen peroxide (O-22), or O-2, which is a peroxide radical. Since the inorganic oxygen peroxide is radially formed around the cylindrical tube 270-1, a large amount of inorganic oxygen peroxide is generated instantaneously over a large area. These inorganic oxygen peroxides can react directly or indirectly with the organic matter contained in the primary purification wastewater, and the wastewater can be purified by such a reaction. For example, the hydration radicals (radicals) can react with NH4, one of the organic materials, to produce N2 and H2O. The reaction of hydration radicals as described above can be extended to all the organic matter contained in the wastewater, and the primary purification wastewater can be subjected to the secondary purification treatment due to the reaction between the hydration radical and the organic matter. Also, the inorganic oxygen peroxides penetrate into cell membranes such as pathogens and viruses through radical action, neutralize and destroy them, decompose volatile organic compounds (VOC), change substances such as methane into water and carbon dioxide, , It is decomposed into water and a very small amount of sulfuric acid. Particularly, it exerts an excellent effect in removing odor, and it does not collect more than 20 kinds of known odor, but decomposes and disappears, thereby enabling complete elimination. The high voltage discharger 270 according to the present invention is an air delivered to the inside of the cylindrical pipe 270-1 by the air transfer pipe 60 and the contaminated air in the purge chamber 10 It is possible to constantly purify the air contaminated with odor or the like in the purifying chamber 10. [ The external electrodes 270-7 and the internal electrodes 270-9 are sequentially charged and discharged by the capacitors formed by the insulating air between the external electrodes 270-7 and the internal electrodes 270-9, A change in the surface characteristics or loss of the surface of the cylindrical tube 270-1 existing between the two tubes is disadvantageous. To this end, in 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, and the external electrode 270-7, And the internal electrode 270-9 can be continuously used.

Here, the high voltage discharge device 260 has a form in which one or more of these high voltage discharge devices 270 are coupled. 2, the high voltage discharge device 260 includes a high voltage discharge device 270 coupled to a cover 266 constituting a lower portion of the high voltage electrical discharge device body 280, And the support table 270-3 is coupled to the upper side. The lid 266 may be a lid 266 which constitutes the upper surface of the second purifying tank 200 and covers the upper portion of the second purifying tank 200. A high voltage discharge unit 270 and a current supply unit 268 for supplying a current to the internal electrode 270-9 may be disposed in the high voltage discharge apparatus body 280. [ The high voltage discharge apparatus main body 280 may include an air pipe 262-1 connected to an air transfer pipe 264 which communicates with the air inlet pipe 262 and supplies air to each of the high voltage discharge devices . Thus, air introduced from the air inflow pipe 262 can be transferred to the high voltage discharger 270 through the air transfer pipe 264 through the air pipe 262-1.

Here, the ozone or radicals supplied into the primary purification wastewater (w / w-1) are subjected to reaction (purification reaction) or oxidation reaction with the primary purification wastewater (w / w-1) in the second purification tank 200 The high-voltage discharge unit 270 is caused to gather around the high-voltage discharge unit 270. In other words, the ozone or radical can not be extended outside the high voltage discharge unit 270, and the ozone or the radical is located only in a specific region near the ozone or radical is emitted from the high voltage discharge unit 270. When such ozone or radicals can not be expanded in the second purification tank 200, the second purification is performed only in a very limited area, so that the time required for the second purification process becomes very long. Accordingly, in the wastewater purification system 1 according to the embodiment of the present invention, as shown in FIG. 1, the second purification tank 200 is in fluid communication with the second bubble generator 250. That is, the second bubble generator 250 receives the wastewater in the second purification tank 200 from the second wastewater inflow passage 252 connected to the side of the second purification tank 200. Thereafter, the second bubble generator 250 injects ultrafine bubbles into the wastewater flowing into the second bubble generator 250, and then passes through the second wastewater discharge passage 254 to the second bubble generator 200, . Here, the second wastewater outflow passage 254 may have one end connected to the second bubbler 250 and the other end connected to the lower surface of the second purification tank 200. The ultrafine bubbles contained in the wastewater flowing out to the second purification tank 200 again rise in the second purification tank 200 and can spread smoothly. Here, the ultra-microbubbles B spreading inside the second purification tank 200 may have a diameter of 10 to 100 nm (nano). However, the present invention is not limited to this, and it may have a diameter of 10 to 1000 nm (nano), or may have a diameter of 100 nm (nano) or more. 1 shows one second wastewater inflow passage 252 and two second wastewater outflow passages 254, but the present invention is not limited thereto. The number of the second wastewater inflow passages 252 is not limited to the capacity of the second purification tank 200 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.

The ultrafilter bubbles B supplied into the second purifying tank 200 are discharged from the high-voltage discharger 270, that is, emitted ozone or radicals (w / w-1) in the second purifying tank 200, As shown in FIG. That is, the ozone or the lacquer discharged from the high voltage discharge unit 270 is present only in a specific region. The ozone or the latent gas discharged from the high-voltage discharge unit 270 is supplied to the second purifying tank 200, Area is expanded.

4, ozone or radicals, such as inorganic hydrogen peroxide, generated and discharged from the high voltage discharge unit 270 may flow along the surface of the ultrafine bubble B in the second reservoir 200, It can be moved around and expanded while moving rapidly. In other words, as compared with the case where it is spread around the high voltage discharger 270 due to the force or diffusion phenomenon discharged from the high voltage discharge unit 270, it is possible to quickly expand along the surface of the surrounding ultrafine bubble B, It can be spread over an area wider than a specific area. That is, the ultrafine bubbles B in the second purification tank 200 serve as bridges for spreading ozone or radicals around. Thus, the range in which ozone or radicals exist in the second purification tank 200 is widened do. The expansion of this range rapidly increases the surface area of the area where ozone or radicals exist, thus making the secondary purification process faster. This second purification process is performed in the second purification tank 200 in such a manner that the total nitrogen (T / N, Total Nitrogen), total phosphorus (T / P, Total Phosphorus), biological oxygen demand (BOD, Biochemical Oxygen Demand, Chemical Oxygen Demand (COD), and Suspended Sediment (SS). In this way, final purified water (c / w, Clean Water) can be made. In addition, the ultrafine bubbles B in the second purification tank 200 can additionally purify the floating contaminants SS that have not been removed in the first purification process in the first purification tank 100. That is, when the second bubble generator 250 is activated, after a predetermined time has elapsed, the inside of the second purification tank 200 may be filled with the ultrafine bubble B. In this case, the predetermined time may be about 5 minutes (the time required until visually full is about 30 seconds to 1 minute), but it is not limited to the capacity of the first bubbler 150 and the size of the first purification tank 100 But the present invention is not limited thereto as described with respect to the first purification tank 100. The ultrafine bubbles B in the second purification tank 200 not only extend the ozone or radical in the vicinity of the high voltage discharge device 270 of the high voltage discharge device 260 but also extend in the first purification tank 100, As in the case of the first purification process of the present invention, it is possible to remove Suspended Sediment (SS).

As described above, the purified water (c / w) after passing through the first purification process of the first purification tank 100 and the second purification process of the second purification tank 100 includes total nitrogen (T / N, Total Nitrogen) (T / P, Total Phosphorus), Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Suspended Sediment (SS) Water (c / w, Clean Water). The clean purified water can be discharged to the outside of the purification chamber 10 through the purified water outlet pipe 20. On the other hand, the purified water outlet pipe 20 may be provided with a valve V2 for discharging only the purified water from the second purification tank 200. Meanwhile, during the first purification process in the first purification tank 100 and the second purification process in the second purification tank 200, the waste water is basically purified. Accordingly, contaminated air containing odor or the like is present in the vicinity of the first and second purification tanks 100 and 200.

1, in the wastewater purification 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, The chamber 10 is shielded from the outside so that contaminated air in the vicinity of the first and second purification chambers 100 and 200 is prevented from flowing out. The wastewater inflow pipe 110 for introducing the wastewater (w / w) into the first purification tank 100 is extended to the outside of the purification chamber 10, and a purified water outlet pipe for discharging the purified water 20 extend outwardly. The purge chamber 10 is provided with an external air inlet pipe 12 for allowing air to flow into the purge chamber 10 and an internal air outlet pipe 14 ). The wastewater inlet pipe 110 and the purified water outlet pipe 20 are provided with valves V2 and V3, respectively, and are opened only when necessary. Further, although not shown in the drawing, the external air inlet pipe 12 may be provided with a one-way valve so that the air inside the purge chamber 10 does not flow out through the external air inlet pipe 12, The pipe (14) is provided with a valve (V4) for interrupting the flow of the air inside the purifying chamber (10). Accordingly, when the valves V2, V3, and V4 are closed, the internal air in the purge chamber 10 may not flow out. The inner air outlet pipe 14 is connected to a high voltage discharge air purifier 300 for purifying the internal air flowing out of the purge chamber 10. Although not shown in the drawings, it is needless to say that the air inside the purge chamber 10 can be forcibly drained by providing an air pump in the inner air outlet pipe 14. [

Accordingly, when the valve V4 on the inner air outlet pipe 14 is opened and the internal air of the purge chamber 10 flows into the high voltage discharge air purifier 300, the high voltage discharge air purifier 300 supplies the inside air to the clean air . &Lt; / RTI > The purge air can be discharged to the outside through the purge air outlet pipe 310 communicated with the high voltage discharge air purifier 300. The purge by the high voltage discharge air purifier 300 purifies contaminated air inside the purge chamber 10 in two steps. That is, as described above, the contaminated air in the purge chamber 10 is purified by the high-voltage generator 270 located in the upper portion of the second purifier 200, and further the internal air outlet pipe 14 The internal air introduced into the high-voltage discharge air purifier 300 is purified in two stages. Thus, the purified air discharged from the high-voltage discharge air purifier 300 after being purified may be clean purified air.

1, a first bubble generator 150 and a second bubble generator 250 are connected to the first and second purification bins 100 and 200, respectively, It is shown that the first bubble generator 150 and the second bubble generator 250 are separately provided with ultrafine bubble generators 156 and 256 to supply ultrafine bubbles through the respective ultrafine bubble generators 156 and 256 . However, it is needless to say that the first bubble generator 150 and the second bubble generator 250 may be formed of a single structure.

That is, the first waste water inflow passage 152, the first waste water outflow passage 154, the second waste water inflow passage 252, and the second waste water outflow passage 254 are separately provided, (Not shown) for supplying fine bubbles to the first wastewater inlet 152 and the second wastewater inflow passage 252. In other words, one ultrafine bubble supplying unit may supply ultrafine bubbles so that wastewater containing ultrafine bubbles can flow out into the first effluent outflow path 154 and the second effluent outflow path 254 . While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, I will understand. Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by equivalents to the appended claims, as well as the appended claims.

1: Wastewater treatment system
10: Purification chamber
12: External air inflow pipe
14: Internal air outlet pipe
100: First storage tank
150: First ultra-low intensity generator
152: First wastewater inlet pipe
154: First waste water outlet pipe
200: Second storage tank
250: second super strength generator
252: second waste water inflow pipe
254: Second wastewater effluent pipe
260: High-voltage discharge device
262: air inlet pipe
266: Cover
270: High voltage discharge
270-1: Cylindrical tube
270-3: Support
270-5: metal mesh
270-7: external electrode
270-9: internal electrode 270-9:
B: Ultrafine bubble
c / w: clean water
V1, V2, V3, V4: Valve
w / w: waste water
w / w-1: Primary purification wastewater
SS: Floating pollutants

Claims

A wastewater purification system for purifying wastewater, comprising: a purification chamber;
Wherein the wastewater flowing from the outside of the purging chamber is stored in the purging chamber, and ultrafine bubbles are adsorbed on an outer surface of suspended sediment floating in the wastewater, And a primary purification tank for primary purification of the wastewater by floating, wherein the primary purification consists of ultrafine bubbles only; A first bubble generator for allowing the wastewater to flow from the first purification tank and to flow into the first purification tank together with ultrafine bubbles so that the ultrafine bubbles for the first purification can be filled in the first purification tank; A second purifying tank located in the purifying chamber for introducing the first purified purified wastewater from the first purifying tank and purifying the first purified wastewater using the high voltage discharge and ultrafine bubbles at the same time; Wherein the first purification wastewater is disposed in an upper portion of the second purification tank, and the air in the purification chamber is introduced through an air inlet pipe to purify the air in the purification chamber in one step, Or a high voltage discharge device for discharging radical ions; The first purification wastewater is introduced from the second purification tank to generate ultrafine bubbles that allow the ozone or radical ions discharged from the high voltage discharge device to expand inside the second purification tank at an upper portion of the second purification tank, A second bubble generator for passing the ultrafine bubble to the second purification tank; And a high-voltage discharge air purifier for purifying the air discharged from the purge chamber in two steps by high-voltage discharge and discharging the discharged air to the outside, wherein the wastewater flowing in from the outside is purified into the primary purifier and the secondary purifier, A system for purifying wastewater by using high-voltage discharge and ultrafine bubbles, which purifies the air in the chamber by the one-stage purge and the two-stage purge.

The method of claim 1,

Wherein the wastewater flowing into the first purification tank includes at least one of food wastewater, dyeing wastewater, livestock wastewater, paper wastewater, and starch wastewater.

The method of claim 1,
Wherein the first bubbler and the second bubbler generate high-voltage discharge and ultrafine bubbles that receive ultrafine bubbles from one ultrafine bubble generator.