KR100445301B1 - Ozone Sterilization Method and Device for Water Supply Drainage - Google Patents

Abstract

PURPOSE: To provide an ozone sterilization method and apparatus for water supply and drainage which rarely produce residual ozone while maintaining high dissolution efficiency of ozone by repeatedly applying cavitation phenomena of fluid in a method for dissolving liquid and gas (ozone) in environmental fields. CONSTITUTION: The apparatus comprises first inlet (3) for flowing in raw water; first raw water supply unit consisting of first pump (4) and first pipeline (5) for helping raw water flown in the first inlet; first suction pipe (12) in one side of which ozone is sucked, and through the other side of which the sucked ozone is discharged; first ejector connected to the first raw water supply unit and the first suction pipe to eject the raw water onto the ozone; first critical pipe (9) for injecting ozone water mixed in the first ejector into the pipeline; first aeration tank (10) whose upper part and side surface cover an outer part of the first critical pipe, and a lower part of which is extended in a waterway direction; first gas retention tank (11) positioned above the first aeration tank to collect the ozone that is not dissolved as it is passing through the first critical pipe; second inlet (23) for flowing in the raw water; second raw water supply unit consisting of second pump (24) and second pipeline (25) for helping raw water flown in the second inlet; second suction pipe (32) to one side of which the first gas retention tank is connected to suck in ozone from the first gas retention tank, and through the other side of which the sucked ozone is discharged; second ejector (26) connected to the second raw water supply unit and the second suction pipe to eject the raw water flown in onto the ozone; second critical pipe (29) for injecting ozone water mixed in the second ejector into the pipeline; second aeration tank (30) whose upper part and side surface cover an outer part of the second critical pipe, and a lower part of which is extended in a waterway direction; and second gas retention tank (31) positioned above the second aeration tank to collect the ozone that is not dissolved as it is passing through the second critical pipe.

Description

Ozone Sterilization Method and Device for Water Supply Drainage

The present invention relates to a method and apparatus for water and sewage ozone sterilization. More particularly, the present invention relates to a water and sewage ozone sterilization apparatus and method that requires little facility for treating residual ozone by repeatedly applying the same by using a cavitation phenomenon of a fluid.

Ozone not only has much stronger oxidizing power than chlorine, but also has a fast oxidation rate and does not leave residue after deodorization and sterilization. On the other hand, it is very important that the ozone generated by the ozone generator be effectively contacted with the water to be treated. If the efficiency of contact with water and ozone is inferior, the efficiency of the whole process will be reduced.At this time, ozone that is not absorbed by water is released into the atmosphere, and not only can it be treated, but it also causes various environmental problems. In this regard, an optimal contact method is needed by closely examining the energy consumption and the like, and an analytical study is required. Known techniques for contacting ozone with water include an acid method, a pressurized injector method, a venturi injector method, and the like.

First, the acid method is a method of contacting water through a porous diffuser made of an ozone material such as ceramic or stainless steel in ozone gas, and is a method of dissolving in water and reusing excess ozone discharged to the upper surface as bubbles rise to the surface. Next, the pressurized injector system is used to pressurize the treated water and ozone at the same time to speed up the treatment, and it is used for water sterilization or water treatment such as a swimming pool where the contact tank cannot be large because the residual effect of ozone is large. Used. Venturi injector method uses ozone gas generated by negative pressure while passing the water to be treated through the venturi tube under pressure by the pump, and absorbs ozone gas and sends the gas and liquid to the contact tank so that the pressure is low. Since it is used to contact the gas, excess ozone gas is pyrolyzed or decomposed through activated carbon.

The above methods take the form of aeration to inject ozone into the water, but the amount of ozone water generated here is extremely small, and a large amount of ozone is not used and is simply released into the atmosphere. Only about 30% to 60% was mixed with water and a surplus ozone treatment apparatus after ozone water generation was required. In addition, there is a side that is not suitable for use in places where a large amount of ozone water is required.

According to the Republic of Korea Patent No. 0135460 (Ozone water production method and its use method; registered on Jan. 4, 1998) invented by the present applicant, the gas particles and the liquid is stirred by gas and liquid as a method to dramatically improve the dissolution efficiency of ozone A new method combining a pressurized tank that leads to an invisible supercritical state is introduced, making it easy to use at a predetermined concentration desired by consumers in homes and businesses. However, when a separate power source is required for the hydrolysis type stirring device and the dissolved gas is not stabilized and the pressure condition is not satisfied due to the vortex caused by the stirring device, the ozone gas is easily released from the ozone water.

In addition, according to the Republic of Korea Patent No. 0242413 (Ozone water production method and apparatus; registered on Nov. 10, 1999) invented by the applicant, a breakthrough method of making ozone water by spraying water on the ozone gas to avoid the method of adding ozone into water Presented.

Applicant's registered patent No. 0294793 (method for preparing pressurized injection gas dissolved water; registered on Apr. 20, 2001) further improved the dissolution rate by installing a nozzle at the bottom of the mixed dissolving machine to promote dissolution and pressurizing and stabilizing it in a pressure tank. At the same time, it discloses a method of performing residual ozone treatment by decomposing residual ozone gas through an ozone pyrolysis apparatus or an ozone active decomposition tank. However, these methods require ozone to be mixed with water, mixed with ozone, and passed through a mixed solvent, and then reacted again in a pressurized tank to produce ozonated water, and to separate the unreacted ozone generated during the reaction into a gas and to perform separate residual ozone treatment. There is a problem. In addition, the above method is to treat contaminated material, and ozone treatment is performed on all contaminated water so that the next work is performed. It consumes a lot of power to treat all contaminated water. There is a disadvantage that the costs and maintenance costs are enormous.

An object of the present invention devised to solve the problems of the prior art as described above is to repeatedly apply it using a cavitation phenomenon of a fluid in a method of dissolving liquid and gas (ozone) in the environmental field. It is to provide a water and sewage ozone sterilization treatment method and apparatus that is excellent in dissolution efficiency and generates little residual ozone.

Another object of the present invention is to provide a water and sewage ozone sterilization method and apparatus that is more environmentally friendly than fluorine or chlorine sterilization, and can solve the cost problem in the conventional treatment method using ozone.

Another object of the present invention is to adjust the amount of ozone to be precisely introduced by adjusting the amount of ozone in accordance with the contaminants such as oxides, organic substances, etc. contained in the raw water, to reduce the ozone treatment time from minutes to seconds, ozone The present invention provides a method and apparatus for treating ozone sterilization of water and sewage that does not require residual ozone treatment facilities by treating almost all of them.

Still another object of the present invention is to provide an ozone sterilization treatment method and apparatus which does not require a compressor for supplying ozone in the conventional method by sucking ozone through a vacuum phenomenon generated by the strong speed of raw water.

1 is a perspective view of a water and sewage ozone sterilization apparatus according to an embodiment of the present invention.

2 is a partial cross sectional view taken along line AA ′ of FIG. 1;

3 is a perspective view of the primary ozone treatment according to FIG.

4 is an internal cross-sectional view of the primary and secondary ejectors according to the present invention.

5 is a perspective view of the secondary ozone treatment according to FIG.

Figure 6 is a perspective view of the water and sewage ozone sterilization apparatus according to another embodiment of the present invention.

FIG. 7 is a partial cross-sectional view of BB ′ of FIG. 6.

8 is a perspective view of the primary ozone treatment according to FIG.

9 is a cross-sectional view of the operation of the critical pipe and the aeration tube according to the present invention.

10 is a perspective view of the secondary ozone treatment according to FIG.

<Description of the symbols for the main parts of the drawings>

1: Water supply pipe (Sewage pipe) 2: Primary water barrier

3: primary inlet port 4: primary pump

5: Primary pipe line 6: Primary ejector

7: primary hydraulic gauge 8: sensor

9: primary critical pipe 10: primary aeration container

11: primary gas retention tank 12: primary vacuum tube

13: 1st negative pressure gauge 14: 1st drip tray

23: secondary inlet 24: secondary pump

25: secondary pipeline 26: secondary ejector

27: 2nd pressure gauge 29: 2nd critical pipe

30: secondary aeration tank 31: secondary gas retention tank

32: 2nd vacuum tube 33: 2nd negative pressure meter

34: secondary drip tray 35: ozone decomposing device

36: 3rd vacuum tube 41: static mixer

42: secondary water barrier

The present invention for achieving the above object is to press the water at a constant pressure by a pump when the raw water to be treated flows into the water and sewage or wastewater pipe to be a significant speed to pass the reduced neck in the state of inhaling ozone, the flow rate is very This is achieved by the complete mixing of ozone by accelerating and pressing to create a "cavitation" phenomenon.

A further explanation of the "cavitation" phenomenon is as follows. Vaporization of the liquid is divided into two processes in which cavitation occurs as the temperature of the liquid rises or the pressure in the liquid drops below the vapor pressure. The present invention applies the latter phenomenon. That is, as the speed of the fluid increases, the pressure in the fluid is locally lowered below the saturated vapor pressure of the liquid, whereby a group of cavitation bubbles consisting of water molecules and non-condensable gas molecules is generated in the liquid. In addition, as the flow rate decreases and the pressure recovers, each cavitation bubble undergoes a process of shrinking, re-expansion, and collapse, creating a significant impact pressure and a high temperature environment near the bubble, while generating a micro jet in the bubble that collapses and causing the bubble to collapse. Several reactors are created around them, and they act like a fine reactor and react well with the surrounding reactants. In such a situation, the reaction with ozone is groundbreaking, so when the ozone is sprayed, the dissolution rate of ozone is improved. In addition, the reactant contained in the raw water and the stirred ozone are simultaneously reduced to 1: 1, respectively, and the reactant contained in the raw water is also reduced as the high level of ozone decreases.

Water and sewage ozone sterilization apparatus of the present invention is formed on one side of the water channel to block the incoming water to the inlet and outlet, the first water barrier, and the first suction port for sucking the raw water introduced into the waterway from the inlet, A primary raw water supply device comprising a primary pump and a primary pipe that helps the raw water is sucked into the primary suction port, a primary vacuum tube that sucks ozone to one side and discharges ozone introduced to the other side, and the primary raw water supply A primary ejector connected to a device and a primary vacuum tube and mixed with each other as the raw water flows in, and mixed with the ozone introduced into the primary vacuum tube and the raw water injected from the primary ejector to inject A primary critical pipe, a primary aeration tube having an upper portion and a side surface surrounding the outside of the primary critical tube, and a lower portion extending in the waterway direction, and an upper portion of the primary aeration tube And the position and the primary gas retention tank for collecting the remaining ozone passing through the primary critical gwanreul,

A secondary raw water supply unit which is located in the inlet and sucks the raw water, a secondary pump and a secondary pipe that assist the raw water to be sucked into the second suction port, and a primary gas retention tank to one side; A secondary vacuum tube connected to the secondary vacuum tube for supplying ozone introduced into the other side and sucked with ozone, a secondary ejector connected to the secondary raw water supply device and a secondary vacuum tube and mixed with each other while the raw water flows in, and the secondary ejector And a secondary critical tube for mixing and spraying mixed ozone water from the upper side, a secondary aeration tube having an upper side and a side surrounding the outside of the secondary critical tube, and a lower portion extending in the water channel direction, and an upper portion of the secondary aeration tube. Located and characterized in that it comprises a secondary gas retention tank for collecting the residual gas while passing through the secondary critical pipe.

Preferably, there is further included an ozone decomposing device having activated carbon embedded therein, one side extending to the secondary gas retention tank, and removing residual gas collected in the secondary gas retention tank while passing through the activated carbon. It features.

Preferably, the primary and secondary hydraulic gauges are installed on one side of the primary and secondary pipelines, respectively, and on one side of the primary hydraulic gauge, a sensor for stopping the operation of the system when it is out of the setting range of the hydraulic gauge. Characterized in that installed.

Preferably, the primary ejector is formed with an ejector reduction tube which gradually reduces the upper neck portion connected to the outlet of the primary pipe, the lower neck portion connected to the inlet of the primary critical pipe is gradually expanded An enlarged tube is formed, and between the ejector reducer tube and the ejector enlarged tube, a suction tube into which ozone discharged from the primary vacuum tube is introduced is formed.

Preferably, at one side of the primary ejector, primary and secondary negative pressure gauges for measuring the positive pressure of ozone flowing through the primary and secondary vacuum tubes and the negative pressure of raw water flowing through the primary and secondary pipelines. Characterized in that installed.

Preferably, one side of the discharge portion is characterized in that the secondary water barrier is installed to be discharged after a certain amount of discharged water discharged to the primary critical pipe is reached.

Preferably, a sensor for measuring the concentration of ozone gas flowing into one side of the primary vacuum tube, secondary vacuum tube and tertiary vacuum tube is installed.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a water and sewage ozone sterilization apparatus according to an embodiment of the present invention, Figure 2 is a partial cross-sectional view of AA 'of Figure 1, Figure 3 is a perspective view of the primary ozone treatment according to Figure 1, 4 is an internal cross-sectional view of the primary and secondary ejector according to the present invention, Figure 5 is a perspective view of the secondary ozone treatment according to Figure 1, Figure 6 is a water and sewage ozone sterilization treatment apparatus according to another embodiment of the present invention FIG. 7 is a partial cross-sectional view of BB ′ of FIG. 6, FIG. 8 is a perspective view of the primary ozone treatment according to FIG. 6, FIG. 9 is a cross-sectional view of the operation of the critical pipe and the aeration tube according to the present invention. 10 is a perspective view of the secondary ozone treatment according to FIG. 6. In this case, in describing the present invention, detailed descriptions of related well-known technologies or configurations are omitted in order not to obscure the gist of the present invention.

With reference to Figures 1 to 5, looks at in detail with respect to the ozone treatment apparatus according to an embodiment of the present invention.

As shown in Figures 1 to 3, when the first ozone treatment process in detail, when the raw water flows into the water supply or sewage pipe (1) by operating the primary pump (4) to the raw water to the primary suction port (3) The sucked raw water is introduced into the primary ejector 6 via the primary pipe 5 at a pressure of 23M to 25M in head lift. At this time, the primary hydraulic pressure gauge 7 installed on one side of the primary pipe checks the pressure of the raw water passing through, and when the checked raw water pressure is out of the reference range, the sensor installed on one side of the primary hydraulic gauge 7 ( 8) is activated and the operation of the ozone sterilizer is automatically stopped.

On the other hand, ozone mixed with raw water flows into the primary ejector 6 through the primary vacuum tube 12. At this time, the concentration of ozone flowing through the primary vacuum tube is preferably 3% (30,000ppm) to 12% (120,000ppm) ozone gas.

The raw water flowing into the primary ejector 6 generates a vacuum phenomenon (hereinafter referred to as a critical phenomenon) due to the strong pressure and speed of the incoming raw water, and the critical phenomenon flows into the primary critical pipe 9. It is generated more actively by working with the pressure and velocity of the incoming ozone. Here, the critical phenomenon is the pressure of ozone supplied to the primary ejector 6 (hereinafter referred to as positive pressure) and the pressure of ozone sucked by raw water flowing into the primary ejector 6 (hereinafter referred to as negative pressure). It means that the inside of the first critical tube instantaneously vacuums and the raw water passing through the inside instantaneously explodes, which is a kind of "cavitation" described above. This momentary phenomenon continues to occur repeatedly.

That is, as shown in FIG. 4, the primary ejector 6 has a lower portion connected to the ejector reduction tube 43 in which the upper part connected to the primary conduit 5 is gradually reduced and the primary critical tube described later. The neck is composed of an ejector enlarged tube 44 which gradually expands, and a suction tube 45 through which ozone discharged from the primary vacuum tube 12 flows between the ejector enlarged tube 43 and the ejector enlarged tube 44. Therefore, the raw water flowing into the primary ejector through the primary pipe has a very high flow rate when passing through the reduced neck of the ejector reduction pipe 43, and strongly sucks and mixes the ozone introduced into the suction pipe 45, thereby causing the "cavitation". "Will occur. Subsequently, the ozone water passing through the ejector enlargement pipe 44 passes through the neck portion which is gradually enlarged, and the strong flow rate is changed to pressure, so that the mixed ozone is dissolved under pressure, and the dissolved ozone is mixed with the oxide material and organic substance contained in the raw water. React and sterilize.

On the other hand, to the primary negative pressure meter 13 installed on one side of the primary ejector 6, the negative pressure to inhale the raw water by the positive pressure of ozone flowing through the primary vacuum tube 12 and the raw water flowing through the primary pipe line By measuring this, the pressure and velocity of the raw water and ozone can be adjusted to facilitate the "cavitation" phenomenon. In addition, the amount of ozone to be introduced can be adjusted according to the amount of the oxide material and the organic material contained in the raw water.

Through such a process, ozone water in which ozone is sucked and mixed in the primary ejector 6 is discharged to the tap water or sewage pipe 1 through the primary critical pipe 9.

At this time, the ozone water discharged from the primary critical pipe (9) is discharged into the pipeline through the lower portion of the primary aeration pipe covering the primary critical pipe, ozone not dissolved in raw water is discharged to the primary aeration pipe (10) It is gathered into the primary gas retention tank 11 located in the upper portion. Ozone introduced into the primary ejector 6 through this process is dissolved about 95% or more.

On the other hand, the ozone check sensor and the monitor (15, 15 ') for checking the ozone is introduced on one side of the primary vacuum tube 12 and the primary gas retention tank (11) to check the ozone dissolved treatment results. Can be installed.

With reference to Figure 5 looks at in detail the secondary ozone treatment process of the ozone treatment apparatus according to an embodiment of the present invention.

For the treatment of ozone collected in the primary gas retention tank 11, the secondary pump 24 is operated to suck raw water from the water supply or sewage pipe 1 through the secondary suction port 23, and the sucked raw water is It flows into the secondary ejector 26 via the secondary conduit 25. At this time, the pressure of the raw water flowing into the secondary ejector 26 is checked by the secondary hydraulic gauge 27 installed on one side of the secondary pipeline.

On the other hand, ozone collected in the primary gas retention tank (11) is introduced into the secondary ejector (26) through the secondary vacuum tube (32), the action of the strong pressure and speed of the raw water passing through the secondary critical tube (29) It is sucked by the vacuum phenomenon generated as and mixed and dispersed in raw water. The secondary ejector 26 has the same shape as the primary ejector 6 described above, and a pump may be installed in the secondary vacuum tube in order to adjust the pressure of the introduced ozone.

In the secondary ejector 26, a vacuum phenomenon is generated by the strong pressure and speed of the raw water flowing into the secondary ejector 26 in the same manner as the primary ejector 26. This suction and mixing "cavitation" phenomenon occurs. On the other hand, the secondary negative pressure meter 33 installed on one side of the secondary ejector 26 measures the positive pressure of ozone flowing through the secondary vacuum tube 32 and the negative pressure flowing through the primary pipe "cavitation" phenomenon You can adjust the speed and pressure of the raw water to make this work.

The ozone water forming the critical phenomenon through this process is discharged through the secondary critical pipe 29 to the tap water or sewage pipe 1 and mixed with the raw water that has not passed through the apparatus, and is dissolved by ozone dissolved in the ozone water. Sterilization takes place in raw water.

At this time, the ozone water discharged from the secondary critical pipe (29) is discharged along the pipeline through the lower portion of the secondary aeration tank (30) surrounding the secondary critical pipe (29), the gas not dissolved in the ozone water is 2 The secondary gas retention tank 31 located in the upper portion of the vehicle aeration tank 30 is collected. Through this process, the ozone component introduced into the secondary ejector 6 is almost completely dissolved.

On the other hand, the gas collected in the secondary gas retention tank 31 passes through the tertiary vacuum tube extending from the upper portion of the secondary gas retention tank 31 for the complete treatment of ozone that is not completely mixed in the secondary ejector 26. Activated carbon (not shown) is introduced into the built-in ozone decomposing device 35 to be completely removed and released as purified oxygen. At this time, an ozone check sensor (not shown) and a monitor 15 "for verifying the same may be installed at one side of the secondary gas retention tank 31 to check the concentration of ozone contained in the gas flowing into the ozone decomposing device. .

In addition, it is preferable to stagger the static mixer 41 in the flowing water in a predetermined direction so that the ozone water is mixed well. The static mixer 41 for mixing ozone water does not require a separate power supply device, and mixes the water by using a natural physics as shown in the figure to vortex.

Through such a process, the wastewater treatment apparatus of the present invention is sucked into the vacuum phenomenon generated by the strong pressure and speed of raw water even though the supply of ozone is not supplied through the existing compressor, and ozone which is not dissolved through primary ozone dissolution. It has the advantage that it can be almost completely processed through the secondary ozone dissolution process.

6 to 10, an ozone treatment apparatus according to another embodiment of the present invention will be described.

As shown in FIG. 6, a primary water barrier 2 is formed at one side of the water supply or the sewage pipe 1 to separate the pipe 1 into an inlet through which raw water is introduced and an outlet through which treated water is discharged. At this time, the primary water barrier (2) blocks the incoming water, but is installed so that the upper portion of the conduit (1) is not completely blocked so as to flow into the discharge portion over the upper portion of the primary water barrier (2) when the raw water is introduced over a certain amount. It is preferable.

6 to 8, when the primary ozone treatment process of the ozone treatment apparatus according to another embodiment of the present invention is described in detail, when the raw water flows into the inlet blocked by the primary water barrier 2, the primary pump 4 ), The raw water is sucked into the primary suction port 3 installed at one side of the inlet, and the sucked raw water is introduced into the primary ejector 6 along the primary pipe 5 through the head 23M to 25M. At this time, the pressure of the raw water is checked in the primary hydraulic gauge (7) installed on one side of the primary pipe, and the ozone sterilizer automatically when the pressure of the raw water checked on one side of the primary hydraulic gauge (7) is out of the standard range. The installation of the sensor 8 to stop the operation of the same is as described above.

On the other hand, ozone mixed with raw water flows into the primary ejector 6 through the primary vacuum tube 12. At this time, the concentration of ozone flowing through the primary vacuum tube is preferably 3% (30,000ppm) to 12% (120,000ppm) ozone gas.

The raw water flowing into the primary ejector 6 generates a vacuum phenomenon due to the strong pressure and speed of the incoming raw water, and this vacuum phenomenon causes the ozone flowing into the primary critical pipe 9 to flow more quickly. "Cavitation" phenomenon occurs, raw water is exploded into ozone, sucked and mixed. At this time, the negative pressure generated by the action of the positive pressure of ozone flowing through the primary vacuum tube 12 and the raw water flowing through the primary pipe to the primary negative pressure meter 13 installed on one side of the primary ejector (6). By measuring, the pressure and speed of raw water and ozone can be adjusted.

Through this process, ozone water mixed with ozone due to the critical phenomenon in the primary ejector 6 is discharged to the outlet of the tap water or sewage pipe 1 blocked by the primary water barrier through the lower portion of the primary critical pipe 9. Is released.

At this time, as shown in Figure 9, the ozone water discharged from the primary critical pipe (9) hits the "U" shaped primary drip tray 14 installed in the lower portion of the primary critical pipe (9) as fine water molecules As it decomposes, part is backflowed to the upper part of the primary critical pipe 9 and completely stirred with ozone water discharged from the primary ejector 6 to the primary critical pipe. At this time, the height of the primary critical pipe 9 is preferably about 1.2 to 1.5 times the height of the water flowing in the discharge portion.

Thereafter, the discharged water of the primary critical pipe (9) hitting the drip tray is discharged to the discharge section through the space between the primary drip tray (14) and the primary aeration tube (10) in the shape of "U". Undissolved ozone is collected in the primary gas retention tank 11 located above the primary aeration tank 10. Through this process, ozone introduced into the primary ejector 6 is reduced from ten thousand units to one hundred units and is dissolved about 95% or more.

With reference to Figure 10 looks at in detail the secondary ozone treatment process of the ozone treatment apparatus according to another embodiment of the present invention.

As shown, the secondary pump 24 is operated for the treatment of ozone collected in the primary gas retention tank 11, and the raw water is sucked into the secondary inlet 23 installed at one side of the inlet, and the secondary pipe line It flows into the secondary ejector 26 along 25.

On the other hand, ozone collected in the primary gas retention tank (11) is introduced into the secondary ejector (26) through the secondary vacuum tube (32), the action of the strong pressure and speed of the raw water passing through the secondary critical tube (29) It is sucked by the vacuum phenomenon generated as and mixed and dispersed in raw water. The secondary ejector 26 has the same shape as the primary ejector 6 described above, and a pump may be installed in the secondary vacuum tube in order to adjust the pressure of the introduced ozone. At this time, the secondary negative pressure measuring device 33 for measuring the pressure of the raw water and ozone coming into the secondary ejector 26 is as described above.

Through this process, the ozone water forming the critical phenomenon is discharged again through the secondary critical pipe 29 to the inlet of the tap water or sewage pipe 1 blocked by the primary water barrier. At this time, while hitting the "U" -shaped secondary drip tray 14 installed in the lower portion of the secondary critical pipe 29, while part is broken down into the upper portion of the secondary critical pipe 29 and descends from the top It is mixed with ozone water to make mixing of ozone easier.

Through this process, the discharge water discharged from the secondary critical pipe is naturally discharged to the discharge portion through the space between the "U" -shaped secondary drip tray and the secondary aeration tank 30, and the gas not dissolved in the raw water is 2 The secondary gas retention tank 31 is installed in the upper portion of the vehicle aeration tank 30. Ozone introduced into the secondary ejector 26 through this process is almost completely dissolved.

On the other hand, the gas collected in the secondary gas retention tank 31 is passed through the tertiary vacuum tube 36 extending from the upper portion of the secondary gas retention tank 31, the ozone decomposing device 35 with the activated carbon (not shown) built-in Is converted into completely purified oxygen and removed.

In addition, the static mixer 41 is provided so that the ozone water discharged through the secondary critical pipe 9 is well diluted with the raw water passing through the upper portion of the primary water barrier 42 to perform sterilization by dissolved ozone. Let it pass

Thereafter, after a certain amount of discharged water flows into the discharge portion, the discharged water is discharged beyond the secondary water barrier 42.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions and modifications by those skilled in the art to which the present invention pertains may be made without departing from the technical spirit of the present invention. And variations are considered to be within the scope of the present invention.

According to the present invention, the raw water passing through the water and sewage pipe is exploded due to the cavitation phenomenon, and contaminants are oxidized and decomposed, and the raw water is injected into the ozone to increase the dissolution rate of the ozone, thereby dramatically reducing the residual ozone amount and sterilizing the raw water with ozone. .

In addition, by reprocessing the raw water using a small amount of residual ozone, there is no need to install a separate residual ozone facility to prevent environmental pollution due to residual ozone, and has the advantage of significantly reducing the cost of equipment and maintenance.

In addition, there is an advantage that does not need a compressor to supply ozone in the conventional method by sucking the ozone through the vacuum phenomenon generated by the strong speed of raw water.

In addition, the water and sewage ozone sterilization apparatus of the present invention can be applied to dissolving gaseous substances such as oxygen in liquid substances other than wastewater.

Claims (11)

In the water and sewage ozone sterilization apparatus, A primary suction port for sucking the raw water, A primary raw water supply device consisting of a primary pump and a primary conduit to help the raw water to be sucked into the primary suction port, A primary vacuum tube which sucks ozone to one side and discharges ozone introduced to the other side, A primary ejector connected to the primary raw water supply device and the primary vacuum tube to inject the raw water into the ozone; A primary critical pipe for injecting ozone water mixed in the primary ejector into the pipe; A primary aeration passage having an upper side and a side surrounding the outside of the primary critical pipe and a lower end extending in the water channel direction; A primary gas retention tank positioned above the primary aeration tank and collecting the undissolved ozone while passing through the primary critical pipe; A secondary suction port for sucking the raw water, A secondary raw water supply device consisting of a secondary pump and a secondary conduit for assisting raw water to be sucked into the second suction port; A secondary vacuum tube connected to the primary gas retention tank to one side to suck in ozone and discharge ozone introduced to the other side; A secondary ejector connected to the secondary raw water supply device and a secondary vacuum tube to spray the raw water introduced into the ozone; A secondary critical pipe for injecting ozone water mixed in the secondary ejector into the pipe; A second aeration passage having an upper side and a side surrounding the outside of the secondary critical pipe and a lower portion extending in the water channel direction; The water and sewage ozone sterilization apparatus of claim 2, further comprising a secondary gas retention tank positioned above the secondary aeration tank and collecting the ozone which is not dissolved while passing through the secondary critical pipe. In the water and sewage ozone sterilization apparatus, Primary water barrier is formed on one side of the waterway to block the incoming water to the inlet and outlet, A primary suction port for sucking raw water introduced into the channel from the inlet of the channel, A primary raw water supply device consisting of a primary pump and a primary conduit to help the raw water to be sucked into the primary suction port, A primary vacuum tube which sucks ozone to one side and discharges ozone introduced to the other side, A primary ejector connected to the primary raw water supply device and the primary vacuum tube to inject and mix the raw water introduced into the ozone; A primary critical tube which mixes the ozone introduced into the primary vacuum tube and the raw water injected from the primary ejector and sprays the discharge portion of the water channel; A primary aeration passage having an upper side and a side surrounding the outside of the primary critical pipe and a lower end extending in the water channel direction; A primary drip tray having a “U” shape covering the lower portion of the primary critical pipe, A primary gas retention tank positioned above the primary aeration tank and collecting the undissolved ozone while passing through the primary critical pipe; A second suction port located at an inlet of the water channel and sucking the raw water; A secondary raw water supply device consisting of a secondary pump and a secondary conduit for assisting raw water to be sucked into the second suction port; A secondary vacuum tube connected to the primary gas retention tank to one side to suck in ozone and supply ozone introduced to the other side; A secondary ejector connected to the secondary raw water supply device and a secondary vacuum tube to spray and mix the raw water introduced into the ozone; A secondary critical pipe which mixes ozone water mixed in the secondary ejector and sprays the inlet to the water channel; A second aeration passage having an upper side and a side surrounding the outside of the secondary critical pipe and a lower portion extending in the water channel direction; A second drip tray having a “U” shape covering the lower portion of the primary critical pipe, The water and sewage ozone sterilization apparatus of claim 2, further comprising a secondary gas retention tank positioned above the secondary aeration tank and collecting the ozone which is not dissolved while passing through the secondary critical pipe. The positive pressure of ozone flowing through the primary or secondary vacuum tube and the negative pressure of the raw water introduced through the primary or secondary pipeline to one side of the primary ejector or the secondary ejector. Water and sewage ozone sterilization apparatus, characterized in that the primary or secondary negative pressure measuring device is installed. The water and sewage ozone sterilization apparatus according to claim 1 or 2, wherein primary and secondary hydraulic pressure gauges are installed on one side of the primary and secondary pipelines, respectively. The water and sewage ozone sterilization apparatus according to claim 1 or 2, wherein one side of the primary hydraulic gauge is provided with a sensor which stops the operation of the system when it is out of the setting range of the hydraulic gauge. The water and sewage ozone sterilization apparatus according to claim 1 or 2, further comprising a static mixer which helps to mix the treated water discharged into the primary critical pipe. The water and sewage ozone sterilization apparatus of claim 2, further comprising a secondary water barrier formed on one side of the discharge unit so that only the discharge water of a predetermined height or more is discharged to the outside. In the ozone sterilization treatment method for sterilizing raw water of water and sewage with ozone generated in an ozone generator, A first step of injecting the raw water into the primary suction port when the raw water flows into the inlet separated by the primary water barrier, and discharges the raw water into the primary ejector; By adjusting the pressure of the raw water passing through the primary ejector and the pressure of the ozone flowing from the ozone generator, the raw water instantaneously cavitation under critical conditions to explode and the raw water is injected into the ozone to make ozone water. 2 step; In the primary ejector, ozone water mixed with raw water and ozone is discharged through the first critical pipe to the discharge part separated by the primary water barrier, and ozone not dissolved in the discharge water discharged from the primary critical pipe is collected in the primary gas retention tank. A third step of making; A fourth step of sucking the raw water from the inlet by the second suction port and passing it through the secondary ejector so that the flow velocity is increased, and ozone is sucked from the primary gas retention tank through the secondary vacuum tube; A fifth step of producing ozone water by repeating a process in which raw water having passed through the secondary ejector to the inhaled ozone is exploded by cavitation under critical conditions and sprayed with raw water into ozone; And a sixth step of discharging ozone water mixed with raw water and ozone from the secondary ejector to an inlet separated by a first water barrier through a second critical pipe. 2. The method according to claim 8, wherein the ozone which is not dissolved in the discharged water discharged from the secondary critical pipe is collected in a secondary gas retention tank, and the collected ozone is removed through an ozone decomposing device containing activated carbon. Ozone sterilization treatment method of water and sewage, further comprising. 10. The method of claim 8 or 9, wherein the negative pressure of the raw water flowing into the ejector and the positive pressure of the ozone connected to the primary ejector and the secondary ejector of each of the second process and the fifth process are measured by a negative pressure gauge. Water and sewage ozone sterilization method characterized in that it further comprises a process for adjusting the suction speed of the raw water. The method of claim 8, wherein the discharged water discharged from the primary and secondary critical pipes in the third and sixth process is the "U" -shaped secondary and second installed to cover the lower portion of the primary and secondary critical pipes And a portion of the discharged water is flowed back into the primary and secondary critical pipes and mixed with the discharged water again.