KR101286816B1 - Advanced water treatment apparatus using plasma - Google Patents

Abstract

The present invention relates to an apparatus for treating plasma advanced water, comprising: an inner tube (11) and an outer tube (13), the inner tube (11) having a double tube (10A) formed with a first communication path (11A); A gas inlet 30a into which gas is introduced, a contaminated water inlet 30b into which contaminated water is introduced, and a contaminated water outlet 30c connected to the double pipe 10 are provided, and through the contaminated water inlet 30b. Stirring pump 30 for stirring the introduced contaminated water and the gas introduced through the gas inlet (30a) forcibly introduced into the first communication path (11A) of the double pipe (10) through the contaminated water outlet (30c). ); Plasma generating means 20 comprising electrodes 23 and 25 arranged in the inner tube 11 and the outer tube 13 of the double tube body 10, and a power supply unit 21 connected to the electrodes 23 and 25, respectively. It is configured to include, it has the advantage that can increase the sterilization power due to the electric shock and can generate radicals such as hydroxyl groups well.

Description

Plasma Advanced Water Treatment System {ADVANCED WATER TREATMENT APPARATUS USING PLASMA}

The present invention relates to a plasma advanced water treatment device, in particular injecting a gas such as ozone, oxygen or air into the contaminated water to be treated to create a large amount of fine bubbles in the contaminated water, high voltage to the contaminated water containing such a large amount of fine bubbles The present invention relates to a plasma advanced water treatment apparatus that generates a plasma water discharge by applying a high electric field, so as to increase the sterilization power by electric shock in water and to generate radicals such as hydroxyl groups well.

As a technique related to water treatment using plasma or ozone, Utility Model Registration No. 0288954 (August 31, 2002) [Ozone Generator].

The registration proposal provides an ozone generator that simultaneously performs an ozone generation method using a dielectric barrier discharge and an ultraviolet ozone generation method using an ultraviolet light source in one ozone generator, thereby improving the ozone generation rate and having high power efficiency. Presenting an ozone generator

However, it is difficult to apply the above registration proposals to the water treatment field in terms of reality. In particular, a solution to the problem of a significant drop in the yield of ozone at temperatures above room temperature (both high-pressure wireless discharge and ultraviolet rays generate heat) is proposed. Not.

There is also a patent registration No. 0572514 (April 13, 2006) [Simultaneous generation device of dissolved ozone and hydrogen peroxide using wet plasma]

The registered patent generates a wet plasma in a region where gas, liquid, and solid coexist using a high frequency power source to increase the amount of dissolved ozone that acts as a major factor of the oxidation reaction in water and increase the rate of self-decomposition of dissolved ozone in water. A device for simultaneously producing hydrogen peroxide is presented.

However, the registered patent also does not provide a solution to the problem of the ozone yield is significantly reduced at a temperature above room temperature, and may be suitable for small-unit water treatment, such as domestic water purification facilities, but is not suitable for large-scale water treatment.

Furthermore, there is a patent registration No. 0797027 (January 16, 2008) [Waste water treatment apparatus using ultraviolet and oxidizing substances generated in the dielectric barrier discharge tube and wastewater treatment method using the same],

The patent discloses a wastewater treatment apparatus including a dielectric barrier discharge tube consisting of a metal rod and a quartz tube surrounding it, a high voltage generator at the top of the discharge tube, and a cylindrical photocatalyst network around the discharge tube and inside the wastewater treatment apparatus. .

This patent generates electrical discharges inside the dielectric barrier discharge tube contained in the wastewater, generating various oxidative components and ultraviolet rays, and dispersing these oxidative components in the form of fine bubbles in the wastewater to oxidize and remove organic substances in the wastewater. By activating a photocatalyst using ultraviolet rays emitted from a dielectric barrier discharge tube or directly irradiating wastewater, the present invention provides a treatment apparatus and method for treating organic matter by two or more mechanisms. It is mentioned that there is an effect of removing organic matter with high efficiency with little power in the reactor.

However, the registered patent is disadvantageous in that the treatment capacity basically depends on the size of the dielectric barrier discharge tube, and thus, it is not suitable for water treatment for flowing water since the residence time must be guaranteed.

There is also a patent registration No. 0833814 (May 26, 2008) [water treatment device]

The registered patent provides a purified water treatment apparatus having a high water purification capability using a combination of peroxy radicals and ozone, to improve the water purification capability, and to simultaneously generate the peroxy radicals and water treatment in the same space By doing so, it has been described to provide an advantage of reducing the water treatment cost compared to the conventional water treatment apparatus using an ozone alone process.

However, the registered patent is also not related to the ozone yield guarantee or multi-dose water treatment technology.

Accordingly, the present invention constitutes an electrode for plasma discharge in the double tube, injects gas such as ozone, oxygen or air into the contaminated water to make a large amount of microbubbles in the contaminated water and double-contaminated contaminated water containing such a large amount of microbubbles. Plasma discharge after forced injection into the first communication path of the sieve, which is generally stable, but in each part, the electric shock due to the uneven and unstable electric field increases the bactericidal power in the contaminated water and enables the generation of radicals such as hydroxyl groups more easily.

In addition, a radical reaction gas such as oxygen is forcibly introduced into the second communication path of the double tube, and the radical reaction gas thus introduced can be generated by generating a radical source such as ozone by plasma discharge. Efficient generation of radicals by the discharge structure

In addition, by feeding back a radical generating source such as ozone generated by plasma discharge into a stirring pump, the radical generating source is stirred and mixed with the contaminated water, and the contaminated water mixed with the radical generating source is thus obtained. By forcibly inserting into the first communication path of the plasma, plasma discharge, the contact efficiency of the contaminated water and radical generating sources such as ozone and the dissolved efficiency of the radical generating source is also higher than the reaction in the external water tank, so that various hardly decomposable organic substances, bacteria, harmful substances To drastically increase the removal efficiency of toxic substances and viruses,

Also, the treated water that has passed through the discharge plasma section is kept in the tank, and a certain space is formed in the upper part of the tank so that the ozone can be collected, and the ozone collected at the upper side of the tank is put back into the contaminated water to return to the outside of the ozone. To prevent spills and to recycle the ozone,

In addition, the gas directly drawn into the stirring pump from the gas supply source includes a radical generating source such as ozone, fluorine, or chlorine, thereby directly polluting the radical generating source even when a configuration for feeding back the radical generating source from the double tube is not employed. To agitate and mix with water,

In addition, the first communication path of the double tube body is an inner passage surrounded by the inner tube and the second communication path is formed between the inner tube and the outer tube, and the electrodes arranged in the second passage are coiled so as to wind the inner tube. It is an object of the present invention to provide a plasma advanced water treatment apparatus capable of increasing plasma discharge efficiency.

Plasma advanced water treatment apparatus according to the present invention for achieving the above object, the double pipe body is composed of the inner tube and the outer tube and the first communication path is formed; A gas inlet through which gas is introduced, a contaminated water inlet through which contaminated water is introduced, and a contaminated water outlet connected to the double pipe, and the contaminated water introduced through the contaminated water inlet and the gas introduced through the gas inlet are stirred. A stirring pump for forced input into the first communication path of the double pipe through the polluted water outlet; And plasma generating means including an electrode arranged in the inner tube and the outer tube of the double tube and a power supply unit connected to the electrode.

The plasma advanced water treatment device according to the present invention is characterized in that the gas flowing into the gas inlet includes a radical generating source.

Plasma advanced water treatment apparatus according to the present invention is connected to the double tube, the tank for receiving the treated water passed through the double tube; And a radical source feedback tube having one end positioned above the water tank and the other end connected to the gas inlet, and configured to return the radical source vaporized in the tank to the stirring pump.

In the plasma advanced water treatment apparatus according to the present invention, the outer tube of the double tube is partitioned from the first communication path to form a second communication path, and is connected to the second communication path to form a radical reaction in the second communication path. A gas source for radical reaction forcing the gas in; And a feedback pipe connecting the discharge port of the second communication path and the gas inlet to feed back the radical generating source discharged from the discharge port of the second communication path to the stirring pump. .

Plasma advanced water treatment apparatus according to the present invention, the tank for receiving the treated water passing through the double tube; And a radical source feedback tube, one end of which is located above the tank and the other end of which is connected to the gas inlet, for returning the radical source vaporized in the tank to the stirring pump.

The plasma advanced water treatment apparatus according to the present invention is characterized in that the electrodes arranged in the outer tube form a coil to surround the inner tube.

Plasma advanced water treatment apparatus according to the present invention having the above-described problem solving means has the following effects.

First, a large amount of fine bubbles are made in the contaminated water by injecting gas into the contaminated water, and the contaminated water containing such a large amount of fine bubbles is forced into the first communication path of the double tube and then plasma is generated by using a high voltage high-voltage generating power source. By generating a, it is possible to sterilize the bacteria in the contaminated water by the electric shock wave or energy generated in the water, there is an effect that can generate radicals such as hydroxyl groups well.

Second, since only a simple configuration as described above can sterilize various bacteria in the contaminated water, there is an effect of reducing the production cost of related products.

Third, the radical reaction gas such as oxygen can be forcibly introduced into the second communication path of the double tube to generate a radical generating source such as ozone in the plasma discharge zone, thereby efficiently generating the radical generating source. It works.

Fourth, by feeding back a radical generating source such as ozone generated by plasma discharge in a double tube with a stirring pump, stirring and mixing the radical generating source with contaminated water and mixing the contaminated water mixed with the radical generating source in the double tube. By forcibly feeding into the first communication path and passing the discharge plasma section, the contact efficiency of the polluted water and the radical generating source such as ozone can be increased and the dissolved efficiency of the radical generating source can also be increased, compared with the reaction in an external water tank. It is effective to drastically increase the removal efficiency of hardly degradable organic substances and toxic substances, harmful substances, viruses, etc. dissolved in water.

Fifth, the treated water that has passed through the discharge plasma stays in the tank, and a certain space is formed at the upper side of the tank to collect the ozone and prevent the outflow of the ozone by introducing the ozone collected at the upper side of the tank into the contaminated water again. At the same time, the ozone can be recycled to contaminated water.

Sixth, the gas directly sucked from the gas source into the stirring pump includes a radical generating source such as ozone, fluorine, and chlorine, so that the radical generating source is directly polluted even when the feedback generating the radical generating source from the double tube is not employed. There is an effect that can be stirred and mixed with water.

Seventh, the first communication path of the double tube body is an inner passage surrounded by the inner tube, and the second communication path is formed between the inner tube and the outer tube, and the electrode arranged in the second communication passage coils or meshes to wind the inner tube. By forming in the form, the discharge plasma efficiency can be improved.

1 is a schematic configuration diagram of a plasma advanced water treatment apparatus according to a first embodiment of the present invention.
2 is a schematic configuration diagram of a plasma advanced water treatment apparatus according to a second embodiment of the present invention.
3 is a schematic configuration diagram in which the plasma advanced water treatment apparatus according to the present invention is arranged in a form suitable for medium and large unit water treatment.

The present invention may be modified in various ways and may have various forms, and thus embodiments (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In addition, in the drawings, the components are exaggerated in size (or thickness), in size (or thickness), in size (or thickness), or in a simplified form or simplified in view of convenience of understanding. It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.

As shown in FIG. 1, the plasma advanced water treatment apparatus according to the first embodiment of the present invention includes an inner tube 11 and an outer tube 13, and the inner tube 11 has a first communication path 11A. Is characterized in that it comprises a double tube 10, the plasma generating means 20 and the stirring pump 30 is formed.

The stirring pump 30 has a gas inlet 30a connected to a gas supply source A-1 for supplying gas and a contaminated water inlet 30b through which contaminated water is introduced and a contaminated water outlet connected to the double pipe 10. 30c is provided.

A motor (not shown) and an impeller (not shown) are provided inside the stirring pump 30 to forcibly suck the contaminated water through the contaminated water inlet 30b according to the driving of the motor, and through the gas inlet 30a. The gas in the gas supply source (A-1) is forcibly sucked, and the first communication path (11A) of the double pipe (10) through the contaminated water discharge port (30c) by stirring and mixing the contaminated water and gas forcibly sucked in this way Forced to

Here, the gas supply source A-1 may be a tank storing a specific gas or atmosphere, or simply the atmosphere itself.

In the plasma advanced water treatment apparatus according to the present invention, the gas supplied from the gas supply source A-1 preferably includes a radical generating source such as ozone. According to this, the radical generating source such as ozone is sucked into the stirring pump 30 to increase the contact efficiency with the contaminated water in the process of stirring and mixing with the contaminated water and the dissolution rate of the radical generating source to increase various disintegratable organic substances, bacteria, harmful substances, This is because there is an advantage to increase the removal efficiency of toxic substances and viruses.

In addition, the plasma advanced water treatment apparatus according to the first embodiment of the present invention is connected to the double tube 10 and passes through the double tube 10 while sterilizing by discharge plasma and removing organic substances by radical generation sources such as ozone. The treatment tank which has passed through the water tank 40 is further included.

And, as shown in the treatment water inlet pipe 41 is introduced into the treatment water inlet pipe 40 and configured to connect the treatment water supply pipe 42 through which the treatment water out to the upper side of the water tank 40, The upper portion of the 40 can form a space to allow the ozone to collect.

In addition, while the treated water stays in the water tank 40, the process of removing various hardly decomposable organic substances, bacteria, harmful substances, toxic substances, and viruses by radical generating sources such as ozone continues.

In addition, in the plasma advanced water treatment apparatus according to the first embodiment of the present invention, one end is connected to the upper end of the water tank 40 and the other end is connected to the gas inlet 30a, so that the radical generation source is vaporized in the water tank 40. It is characterized in that it is configured to further include a radical source feedback pipe (52) for returning (eg, ozone) to the stirring pump (30).

When the radical source feedback tube 52 is installed, the fluid in the stirring pump 30 forms a rapid flow toward the contaminated water discharge port 30c by driving the stirring pump 30, so that the radical source feedback tube 52 is separated inside the radical source feedback tube 52. Even if there is no suction drive source of the radical generation evaporated in the water tank 40 is naturally sucked into the stirring pump 30 by the pressure difference.

In addition, an air hole (not shown) may be formed at one side of the water tank 40 so as to smoothly return the stirring pump 30 to the radical generating source.

According to the configuration of the radical source feedback tube 52 as described above, the ozone collected at the upper side of the tank prevents the outflow to the outside and can block the harmfulness of the human body in advance, and the ozone can be recycled back into the contaminated water for recycling. Since there is no need for a separate treatment facility for ozone removal, there is an advantage in that the cost of ozone treatment can be reduced.

In addition, the micro ozone discharge pipe 53 is provided on the upper side of the water tank 40 in order to discharge the gas such as the ozone to the contaminated water source.

According to the configuration of the micro ozone discharge pipe 53, by appropriately adjusting the internal pressure that is continuously generated and fed back during the plasma discharge treatment process, some ozone is introduced into the first polluted water source before the contaminated water flows into the pump By using it as a pretreatment process, there is an advantage that all the chemical energy of the ozone can be used for the treatment of contaminated water.

In the first embodiment, the double tube body 10 consists of an inner tube 11 and an outer tube 13, both caps 15 for fixing the two tubes 11 and 13 apart from each other.

The inner tube 11 is externally fitted to the fitting portion 15A of each cap 15, and when the fixing stopper 15B screwed with the fitting portion 15A is turned, the fitting portion tightens the inner tube so that the inner tube is fixed and sealed. Is guaranteed at the same time. If necessary, various types of packing rings may be introduced, and the way in which the fitting portion 15A is tightened-closed to the inner tube by tightening the stopper may be variously modified by adopting various known pipe connection joint structures. Can be.

The outer tube 13 is in the form of in contact with each cap 15, it is possible to ensure the sealing through various seals (S) such as silicone resin. However, if necessary, the cap may be modified to introduce a fixing and sealing structure such as an inner tube fixing structure.

The cap 15 is formed with an inlet port 11a connected to the contaminated water inlet port 30b of the stirring pump 30 by a pipe and a discharge port 11b through which the treated water sterilized by the discharge plasma is discharged.

In the first embodiment, an appropriate amount of gas may be introduced into the outer tube 13 for the discharge plasma.

On the other hand, in the plasma advanced water treatment apparatus according to the present invention, the plasma generating means 20 includes a power supply unit 21 (for example, 4 kV) and first and second electrodes 23 and 25 connected thereto.

The first electrode 23 is a straight line arranged in the first communication path 11A, and the second electrode 25 is a coil type wound around the outer circumferential surface of the inner tube 11 inside the outer tube 13. . However, various electrodes, such as a mesh type electrode or a double coil type electrode, can be selectively introduced as needed.

One end of the first electrode 23 is connected to the power supply unit 21, and one cap 15 penetrates and is arranged in the center of the inner tube 11, and the other end of the first electrode 23 is fitted to the other cap 15. It takes a structure to become.

In addition, one end of the second electrode 25 is connected to the power supply unit 21 and passes between the other cap 15 and the outer tube 13, and then is wound around the inner tube 11 while being wound in the form of a coil. It is preferable to introduce an appropriate sealing body S between the electrodes 23 and 25 and other components so as to prevent various electrical safety accidents such as electric shock or short circuit and fluid leakage problems.

The coupling structure of the cap 15 and the inner and outer tubes 11 and 13 or the structure of the sealing body may be variously modified in consideration of performance, safety, productivity, and the like.

Plasma generating means in the plasma advanced water treatment apparatus according to the present invention mainly aims at eradication of E. coli, various bacteria, and other various pathogenic bacteria, and radical generating sources such as ozone are various hardly decomposable organic substances, various bacteria, harmful substances, toxic substances and viruses. The main purpose of the decomposition treatment is to.

In particular, since the plasma advanced water treatment device according to the present invention is introduced into a double tube with a large amount of microbubbles in the contaminated water to improve the sterilization power by the electric shock due to the difference in the relative dielectric constant of the contaminated water and bubbles and further radicals such as hydroxyl groups You can generate a lot.

Plasma advanced water treatment device according to the present invention is connected to a contaminated water source such as a water source, tap water, waste water treatment facilities, etc. Since it is cooled according to the water temperature, the thermal stability of radical generating sources such as ozone, which is vulnerable to temperature, is secured, and the yield is improved.

2 is a schematic configuration diagram of a plasma advanced water treatment apparatus according to a second embodiment of the present invention.

As shown in FIG. 2, in the plasma advanced water treatment apparatus according to the second embodiment of the present invention, the radical generating gas is introduced into the outer tube 13 and the injected gas is generated by the discharge plasma. A second communication path 13A is formed inside the outer tube 13 by forming the inlet 13a and the outlet 13b so as to be discharged.

As shown in Fig. 2, in the second embodiment, the cap 15 has a radical reaction gas source A-2 (pure oxygen or air or the like) which provides a radical reaction gas for forming a radical source such as ozone. The gas inlet 13a and the discharge port 11b connected with the supply) are formed.

In the second embodiment, the fluid flowing through the first communication path 11A and the second communication path 13A can be arbitrarily selected, but considering the discharge plasma efficiency and sterilization efficiency of bacteria in the contaminated water, the inner tube 11 can be selected. 11A of the 1st communication path was selected for the use through which contaminated water passes.

And, in the plasma advanced water treatment apparatus according to the second embodiment of the present invention, it is connected to the second communication path (13A) to force the radical reaction gas, such as oxygen for example into the second communication path (13A) A radical reaction gas source (A-2) and a water tank (40) for receiving the treated water passing through the double tube (10) is characterized in that it is configured to further comprise, the second communication path (13A) A feedback pipe connecting the outlet 13b of the second communication path 13A and the gas inlet 30a to feed back the radical generating source discharged from the outlet 13b to the stirring pump 30 ( 51) is further included, characterized in that the configuration.

According to the above structure, a radical generating source such as ozone can be efficiently generated using the discharge plasma structure peculiar to the present invention.

In addition, as described above, the radical generating source such as ozone generated in the second communication path 13A is fed back by driving the stirring pump 30 to stir and mix the radical generating source with contaminated water. By forcing the mixed contaminated water into the first communication path (11A) of the double pipe (10) to generate a discharge plasma, the contact efficiency of the contaminated water and the source of radicals such as ozone and the like radicals and radical Dissolving efficiency of the source is also increased to increase the removal efficiency of various hardly decomposable organic substances, bacteria, harmful substances, toxic substances and viruses.

When the feedback tube 51 is installed in the above configuration, the fluid in the stirring pump 30 forms a rapid flow toward the contaminated water discharge port 30c by the driving of the stirring pump 30, so that the feedback tube 51 is separated into the feedback tube 51. Even if there is no suction drive source of the radical source inside the second communication path (13A) is spontaneously sucked into the stirring pump 30 by the pressure difference.

Also in the second embodiment, the radical source feedback tube 52 is configured as in the case of the first embodiment.

Figure 3 is a schematic block diagram showing the arrangement of the plasma advanced water treatment apparatus according to the present invention in a form suitable for medium-to-large water treatment.

Plasma advanced water treatment device according to the present invention is a minimum unit water treatment device, such as domestic water purification facilities, medium and large-scale water treatment equipment for the rear end of the sewage treatment plant, tap water supply associated with the village water intake well or tap water supply for metropolitan city and It can be used in various ways for various small and medium-sized water treatment plants.

As shown in FIG. 3, the water tank 40 may not be connected to one or two double tubes 10, but may be connected to tens or hundreds of double tubes depending on the size of the water treatment (six double tubes are shown in the drawing for convenience). It is also desirable that a number of such baths be introduced to construct a plasma water treatment system, extending the concept of the present invention to a wide range of applications, from domestic small unit water treatment to large unit water treatment.

If necessary, the dual tube 10 and the plasma generating means 20 are arranged in one column in FIGS. 1 and 2, but may be arranged in two or more rows to achieve multiple treatments, and the water tank may also be arranged in two or more rows. can do.

Furthermore, it is preferable that the valve V is further introduced into a pipe connecting the gas supply source A-2 for the radical reaction and the double pipe 10, or a necessary portion on the other pipe.

In addition, the control of the power supply unit 21, the stirring pump 30, the valve V and the like is preferably configured to control the semi-automatic or automatic operation by configuring the control unit with various microcomputers, programmable logic controllers (PLC) and the like.

Meanwhile, the ozone generated in the water tank 40 may be collected and removed without recycling. For example, an induction heating apparatus or various other known heating means, activated carbon, or the like may be used to thermally react the ozone with the activated carbon, or It can be removed by giving a reaction or stagnation of.

In addition, when the plasma discharge treatment is required again for the treated water collected in the water tank 40 through the plasma discharge treatment, the contaminated water inlet 31b of the contaminated water treatment pump 30 is discharged to the treated water in the water tank 40. It is preferable that the circulation pipe 55 and the circulation pump (not shown) connected to the circulation pipe 55 for circulating in the configuration is further included.

Meanwhile, in one embodiment of the present invention, the second electrode 25 is described in the form of a coil, but the present invention is not limited thereto. For example, the second electrode 25 may be a winding structure of the inner tube 11 such as a mesh structure, regardless of its shape. Of course, it belongs to the technical scope of this invention.

In the above description, the conventional method related to the plasma generating method and its mechanism, the specific specification of the power supply unit, the specific specification of the electrode, the specification of the pumps, the processing capacity, the control method, etc. are omitted. I can reproduce it.

In addition, in the above description of the present invention, a plasma water treatment apparatus having a specific shape and structure has been described with reference to the accompanying drawings, but the present invention can be variously modified, changed, and replaced by those skilled in the art. Should be construed as falling within the protection scope of the present invention.

A-1: Gas Source A-2: Gas Source for Radical Reaction
S: seal 10: double tube
11: Inner tube 11A: First channel
11a, 13a: inlet 11b, 13b: outlet
13: Outer view 13A: Second channel
15: Cap 15A: Fitting
15B: fixed stopper 20: plasma generating means
21: power supply unit 23, 25: electrode
30: stirring pump 30a: gas inlet
30b: contaminated water outlet 30c: contaminated water outlet
40: water tank 41: treated water inlet pipe
42: treated water supply pipe 51: feedback pipe
52: radical source feedback pipe 53: micro ozone discharge pipe
55: circulation piping

Claims (6)

An inner tube (11) and an outer tube (13), the inner tube (11) having a double tube (10A) formed with a first communication path (11A);
A gas inlet 30a into which gas is introduced, a contaminated water inlet 30b into which contaminated water is introduced, and a contaminated water outlet 30c connected to the double pipe 10 are provided, and through the contaminated water inlet 30b. Stirring pump 30 for stirring the introduced contaminated water and the gas introduced through the gas inlet (30a) forcibly introduced into the first communication path (11A) of the double pipe (10) through the contaminated water outlet (30c). ); And
Plasma generating means comprising electrodes 23 and 25 arranged in the inner tube 11 and the outer tube 13 of the double tube body 10, and a power supply unit 21 connected to the electrodes 23 and 25, respectively. 20), including
The outer pipe 13 of the double pipe body 10 is partitioned from the first communication path (11A) is formed with a second communication path (13A),
A radical reaction gas source (A-2) connected to the second communication path (13A) to force the radical reaction gas into the second communication path (13A);
In order to feed back the radical generating source discharged from the discharge port 13b of the second communication path 13A to the stirring pump 30, the discharge port 13b of the second communication path 13A and the gas Plasma advanced water treatment apparatus, characterized in that further comprises a feedback pipe (51) for connecting the inlet (30a).
The method according to claim 1,
The gas advanced from the gas inlet (30a) is a plasma advanced water treatment device, characterized in that it contains a radical generating source.
The method according to claim 2,
A water tank (40) connected to the double pipe (10) to receive the treated water passing through the double pipe (10); And
One end is located on the upper side of the water tank 40 and the other end is connected to the gas inlet (30a), the radical source feedback pipe 52 for returning the radical source evaporated in the water tank 40 to the stirring pump 30 Plasma advanced water treatment apparatus, characterized in that further comprises.
delete The method according to claim 1,
Water tank 40 for receiving the treated water passed through the double pipe (10); And
One end is located on the upper side of the water tank 40 and the other end is connected to the gas inlet (30a), the radical source feedback pipe 52 for returning the radical source evaporated in the water tank 40 to the stirring pump 30 Plasma advanced water treatment apparatus, characterized in that further comprises.
The method according to claim 1,
Electrode (25) arranged in the outer tube (13) is a plasma advanced water treatment device, characterized in that to form a coil or mesh to surround the inner tube (11).

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