KR20150001163A - Reactor for waste water advanced oxidation process - Google Patents

Abstract

The present invention relates to a reactor for waste water advanced oxidation process. More specifically, the purpose of the present invention is to provide a reactor for waste water advanced oxidation process, which stably supplies ozone and hydrogen peroxide without oversupply, effectively mixes the same with waste water, and performs advanced oxidation process in ozone (O_3)/hydrogen peroxide (H_2O_2) (Peroxone AOP) method, thereby increasing processing efficiency of waste water. To this end, the reactor comprises a reactor body formed to arrange an accommodation space inside; a partition comparting a first reaction chamber which is installed on the inside of the reactor body and reacted as waste water and hydrogen peroxide flow in the accommodation space, and a second reaction chamber communicated with the first reaction chamber, where the ozone flows in, and the ozone reacts with the waste water and is discharged; an ozone supply unit installed on the reactor body to supply ozone to the second reaction chamber; and a pall ring layer installed on the inside of the second reaction chamber, where a plurality of pall rings to increase reaction surfaces of ozone and waste water are embedded and formed.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a reactor for high-

More particularly, the present invention relates to a reactor for ozonized water (O ₃ ) / hydrogen peroxide (H ₂ O ₂ ), which is effectively supplied with ozone and hydrogen peroxide while being stably supplied without excessive supply of ozone and hydrogen peroxide AOP) -based advanced oxidation process can be carried out.

In general, water treatment techniques for purifying wastewater are mainly used in physico-chemical treatment methods such as filtration, sedimentation and adsorption, and biological treatment methods using microorganisms.

The physico-chemical treatment method is disadvantageous in that a large amount of chemical is required and operation cost is high. Although the biological treatment method using microorganisms is an environmentally friendly treatment technique, since the process is complicated and a large aeration tank and a settling tank are needed, Not only is it costly and time-consuming to construct, but also the highly oxidative treatment technology has been used in recent years because it can not easily purify the degradable organic components of wastewater.

Advanced Oxidation Process (AOP) is a technology that decomposes organic compounds contained in wastewater or the like into harmless compounds such as CO ₂ , H ₂ O, or O ₂ by generating OH radicals. It is used for Fentone oxidation, H ₂ O ₂ oxidation, Various kinds of techniques such as oxidation by UV-ultraviolet rays and oxidation by a catalyst material have been developed

The Advanced Oxidation Process (AOP) includes O ₃ / UV AOP (Advanced Oxidation Process), O ₃ / H ₂ O ₂ (Peroxone AOP), hydrogen peroxide (H ₂ O ₂ ) / UV Advanced Oxidation Process (AOP), Advanced Oxidation Process (AOP) using photocatalyst, O ₃ / High PH AOP (Advanced Oxidation Process), and hydrogen peroxide / iron oxide AOP (Advanced Oxidation Process).

On the other hand, the water treatment technique using the ozone (O ₃ ) / hydrogen peroxide (H ₂ O ₂ ) (Peroxone AOP) among the above-mentioned advanced oxidation treatment techniques is excellent in the oxidizing ability of the relatively poorly decomposable organic substances and the residual ozone in the process is hydrogen peroxide H ₂ O ₂ ) to accelerate the decomposition of ozone.

For example, a water treatment technique using ozone (O ₃ ) / hydrogen peroxide (H ₂ O ₂ ) (Peroxone AOP) is disclosed in Korean Patent Registration No. 10-1048086 (registered on July 07, 2011) A method for manufacturing a high concentration OH radical oxidizing agent using the same, and a method for producing an OH radical using a high concentration OH radical oxidizing agent '.

As shown in FIG. 1, the apparatus for producing a high concentration OH radical oxidizing agent using a multistage complex oxidation process comprises an ozone supply unit 10 for supplying ozone (O ₃ ), and an ozone supply unit 10 for supplying an amount of hydrogen peroxide (H ₂ O ₂ ) A hydrogen peroxide supply unit 20 for supplying hydrogen peroxide diluted with water in accordance with the concentration of the high-concentration OH radical oxidizing agent; and an ozone supplying unit 20 for mixing the ozone supplied from the ozone supplying unit 10 with hydrogen peroxide diluted to the concentration of the high- And a photocatalyst tank 30 for receiving a hydrogen peroxide mixed with ozone and generating a high concentration OH radical oxidizing agent by the action of ultraviolet rays emitted from a UV lamp and holes generated from a photocatalyst. An air filter 101 for blocking dust or foreign substances contained in the air filter 101; And an ozone generator (103) for generating ozone from oxygen supplied from the oxygen generator (102).

The ozone cushion tank 104 supplies ozone to the outside by the action of pressure simultaneously with the storage of ozone supplied from the ozone generator 103. The hydrogen peroxide supply unit 20 includes a permanent magnet 201, A dilution water storage tank 203 for storing dilution water passing through the filtration filter 202, a hydrogen peroxide storage tank 204 for storing hydrogen peroxide, A hydrogen peroxide supply tank 205 for storing hydrogen peroxide diluted by mixing the hydrogen peroxide discharged from the hydrogen peroxide storage tank 204 through a metering pump and a hydrogen peroxide supply tank 205 for supplying hydrogen peroxide A first metal catalyst tank 206 and a second metal catalyst tank 207 for generating hydrogen peroxide in an excited state are provided.

According to the apparatus for producing a high concentration OH radical oxidizing agent using the conventional multistage complex oxidation process and the method for producing an OH radical using a high concentration OH radical oxidizing agent, a mixed oxidizing process that passes through various stages can produce hydrogen peroxide (H2O2) The OH radical oxidizing agent can be produced at a high concentration by the reaction of OH radicals completely by the mutual synergism of the oxidizing agent and the complex oxidizing method. By the action of such high concentration of the OH radical oxidizing agent, Can be efficiently processed.

However, the apparatus for producing a high concentration OH radical oxidizing agent using the conventional multistage complex oxidation process has a complex structure of the ozone supply unit 10 and the hydrogen peroxide supply unit 20 having a complicated structure, as well as the ozone and the hydrogen peroxide supply unit Since the photocatalyst tank 30 for mixing the hydrogen peroxide supplied from the photocatalytic filter 20 is additionally constituted, the structure is complicated.

Particularly, in the apparatus for producing a high concentration OH radical oxidizing agent using a multi-stage combined oxidation process, since the OH radical oxidizing agent of high concentration is sucked from the photocatalyst tank 30 by the injector 40 and mixed with the wastewater as raw water, ozone and hydrogen peroxide are excess The operation cost is increased and the oxidation efficiency of the organic matter due to the excessive supply of ozone and hydrogen peroxide is rather lowered.

If the wastewater, which is the raw water, is not supplied at a high pressure, the wastewater and the OH radical oxidizing agent at a high concentration are not mixed uniformly, and the oxidation efficiency of the organic matter is drastically lowered. In addition, since the wastewater is supplied through the pipe, there is a disadvantage that the processing capacity of the wastewater is limited.

The present invention has been proposed in view of the above, the ozone and yet stable supply without excessive supply of hydrogen peroxide to ozone to mix effectively with the waste water (O ₃₎ / hydrogen peroxide _{(H 2 O 2) (Peroxone} AOP) method of processing high oxidation So that the treatment efficiency of the wastewater can be improved. SUMMARY OF THE INVENTION

In order to achieve the above-mentioned object, the reaction apparatus for the highly purified wastewater according to the present invention is characterized in that it is capable of performing an advanced oxidation treatment of ozone (O ₃ ) / hydrogen peroxide (H ₂ O ₂ ) (Peroxone AOP) The reaction apparatus includes a reaction vessel body having a receiving space formed therein; A first reaction chamber provided in the reaction vessel body for partitioning the accommodation space into a first reaction chamber in which wastewater and hydrogen peroxide are introduced and reacted and a second reaction chamber communicating with the first reaction chamber and being reacted with and discharged from the ozone water, ; An ozone supply unit installed in the reactor body to supply ozone to the second reaction chamber; And a poling layer disposed inside the second reaction chamber and having a plurality of pall rings embedded therein for increasing a reaction area between ozone and wastewater.

The reactor main body includes a tubular body portion formed with an inlet for introducing wastewater into the upper portion of the first reaction chamber and an outlet for discharging wastewater through the upper portion of the second reaction chamber. A sinking part formed in a cone shape and coupled to a lower part of the body part and connected to a drain line for discharging sediment at a lower end; And an exhaust portion formed in a cone shape and coupled to an upper portion of the body portion and connected to an ozone discharge line for discharging unreacted ozone at an upper end thereof, wherein the first and second reaction chambers are provided with flow openings As shown in FIG.

At this time, the ozone discharge line may be connected to the ozone supply unit to reuse the discharged ozone.

In the meantime, the reaction apparatus for the wastewater treatment according to the present invention comprises first mixing means constituted in the first reaction chamber so as to improve mixing efficiency of wastewater and hydrogen peroxide; And second mixing means configured in the second reaction chamber so as to improve mixing efficiency of the wastewater and ozone.

Wherein the first mixing means comprises a plurality of guide members protruding from the inner wall surface of the reaction vessel body and staggered from each other so as to form a flow path of a zigzag structure in the first reaction chamber, And an agitator for increasing the contact area between ozone and wastewater through operation.

Here, the ozone supply unit may include a pipe-shaped spray rod having a plurality of spray holes for spraying ozone supplied from an ozone supply source, and the stirrer may have a structure in which a plurality of blades rotatably installed in the spray rod are formed The blade may be disposed to face the jet hole so as to be rotated by an ejection pressure of ozone.

According to the reaction apparatus for the highly purified wastewater according to the present invention, the system in which ozone and hydrogen peroxide are mixed by the injector during the high oxidation treatment of ozone (O ₃ ) / hydrogen peroxide (H ₂ O ₂ ) (Peroxone AOP) In addition, ozone and hydrogen peroxide are appropriately supplied to the reaction tank according to the flow rate of the wastewater, thereby reducing the operation cost and preventing the degradation of the organic oxidation efficiency due to the excessive supply of ozone and hydrogen peroxide. The efficiency is improved.

Further, according to the reactor for the wastewater treatment of the present invention, it is not necessary to provide a pump for supplying wastewater with a high pressure, a photocatalytic tank for mixing ozone and hydrogen peroxide, and the like, And it is advantageous to increase the treatment capacity of the wastewater because the wastewater can be treated stably in the reaction tank rather than being supplied through the pipe. Particularly, since ozone and hydrogen peroxide are mixed and reacted with each other by the polling layer and the first and second mixing means provided in the reaction tank body, excessive supply of ozone and hydrogen peroxide can be prevented, Ozone can be reused and the operation cost can be reduced.

1 is a view for explaining a conventional oxidation treatment technique for wastewater treatment,
FIG. 2 is a schematic diagram for explaining a technical concept of a reaction apparatus for oxidation treatment of waste water and wastewater according to an embodiment of the present invention; FIG.
3 is a cross-sectional view for explaining a reaction apparatus for an oxidation treatment of waste water and wastewater according to an embodiment of the present invention,
FIG. 4A is a front view of the reactor main body, and FIG. 4B is a cross-sectional view of the reactor outer casing structure of the reactor main body according to an embodiment of the present invention. FIG. And Fig. 4C is a bottom view showing the outer appearance of the sedimentation portion of the reaction tank body.
5 is a schematic diagram for explaining a technical concept of a reaction apparatus for a wastewater treatment system according to another embodiment of the present invention;
FIG. 6 is a perspective view for explaining a second mixing means of a reaction apparatus for wastewater treatment according to another embodiment of the present invention. FIG.

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

FIG. 2 is a schematic diagram for explaining a technical concept of a reaction apparatus for an oxidation treatment of wastewater and water according to an embodiment of the present invention.

Referring to FIG. 2, a reaction apparatus for an oxidation treatment of wastewater according to an embodiment of the present invention is applied to an ozone (O ₃ ) / hydrogen peroxide (H ₂ O ₂ ) (Peroxone AOP) As a reaction device, there are provided a reaction vessel body 1, a partition wall 2 installed in or contained in the reaction vessel body 1, an ozone supply part 3, and a polling layer 4 to generate OH radicals using ozone and hydrogen peroxide Thereby decomposing organic compounds contained in waste water and the like into harmless compounds such as CO ₂ , H ₂ O, or O ₂ and discharging them.

FIG. 3 is a cross-sectional view for explaining a reaction apparatus for an oxidation treatment of wastewater according to an embodiment of the present invention. FIGS. 4A to 4C illustrate an external structure of a reaction apparatus for oxidation treatment of wastewater according to an embodiment of the present invention FIG. 4A is a front view of the reactor main body, FIG. 4B is a plan view showing the external structure of the exhaust part of the reactor main body, and FIG. 4C is a bottom view of the external appearance of the sink part of the reactor main body.

As shown in FIGS. 2 and 3, the reaction tank body 1 is a container-shaped water storage tank having a storage space therein. The storage space is divided into a first reaction chamber 1a and a second reaction chamber 1b .

The partition wall 2 has a first reaction chamber 1a in which the accommodating space of the reaction tank main body 1 is reacted by the introduction of wastewater and hydrogen peroxide and a second reaction chamber 1a in which the ozone is introduced and reacted with the wastewater And a plate-shaped member provided in the longitudinal direction in the interior of the reaction tank main body 1 so as to be divided into a second reaction chamber 1b to be discharged.

The partition wall 2 has a structure in which a flow opening 21 is formed in the lower portion so that the first and second reaction chambers 1a and 1b are communicated with each other and the wastewater can flow.

The ozone supply unit 3 is a component installed in the reaction vessel main body 1 for supplying ozone to the second reaction chamber 1b and includes a plurality of discharge holes for spraying ozone supplied from an ozone supply source, And a rod (31). At this time, the ejection rods 31 are inserted into connection nozzles 32 provided in the reaction tank main body 1 and hermetically installed.

The poling layer 4 is a constituent element provided inside the second reaction chamber 1b to increase the reaction area between ozone and wastewater. The poling layer 4 is provided with a poling installation member And a plurality of pall rings 41 are inserted and stacked in the inner portion of the outer ring 42. At this time, the poling 41 is formed of a metal or a resin material, and preferably has a large surface area.

3 to 4C, the reaction tank main body 1 includes a body portion 11, a sedimentation portion 12 formed at a lower portion of the body portion 11, a lower portion of the body portion 11, And an exhaust part 13 formed on the support frame 7.

The body 11 is formed in a substantially rectangular tube shape and has an inlet 14 for introducing wastewater into the upper portion of the first reaction chamber 1a and an outlet 14 for discharging wastewater through the upper portion of the second reaction chamber 1b A discharge port 15 is formed.

The body part 11 is formed with a polling layer monitoring window 16 for monitoring the inside of the poling layer 4 and an on-off supply part monitoring window 17 for monitoring the operating state of the ozone supplying part 3. [

The settling portion 12 is formed in a cone shape and is coupled to the lower portion of the body portion 11, and a drain line 12a for discharging the sediment is connected to the lower end.

The exhaust part 13 is formed in a cone shape and is coupled to the upper part of the body part 11, and an ozone discharge line 13a for discharging unreacted ozone is connected to the upper part. The exhaust unit 13 is provided with a hydrogen peroxide solution supply unit 6 for supplying hydrogen peroxide to the first reaction chamber 1a.

In addition, the ozone discharge line 13a is connected to the ozone supply part 3 at the other end of the pipe so that unreacted ozone can be reused.

Meanwhile, the outflow pipe connected to the discharge port 15 through which the effluent is discharged may be provided with a hydrogen peroxide removal unit (not shown) for decomposing and removing unreacted hydrogen peroxide.

For example, the hydrogen peroxide removal unit can be composed of a post-treatment unit in which unreacted hydrogen peroxide and manganese dioxide are decomposed by the reaction (MnO ₂ + H ₂ O ₂ -> MnO + H ₂ O + O ₂ ) by injecting manganese dioxide (MnO ₂ ) . At this time, it is preferable that the reaction tank is provided with a separator for filtering manganese oxide.

The hydrogen peroxide supply unit 6 is formed in the form of a hydrogen peroxide tank so as to adjust the concentration according to the flow rate of the wastewater. The hydrogen peroxide tank (not shown) (Not shown) is connected to the inside of the first reaction chamber 1a, and a flow control valve (not shown) for controlling the flow rate of hydrogen peroxide is installed in the discharge pipe.

The operation of the reaction apparatus for the highly purified wastewater treatment according to one embodiment of the present invention will be briefly described.

First, when the wastewater flows into the reaction vessel body 1 through the inlet 14, hydrogen peroxide is supplied through the hydrogen peroxide supply part 6. At this time, the supplied amount of hydrogen peroxide senses the inflow amount of the wastewater through a flow meter (not shown) provided in the wastewater inflow pipe 14a connected to the inflow port 14, and supplies an appropriate amount of hydrogen peroxide.

The wastewater and hydrogen peroxide introduced into the upper part of the first reaction chamber 1a flow from the upper part to the lower part and then flow into the second reaction chamber 1b through the flow opening 21 of the partition 2.

When the wastewater containing hydrogen peroxide flows into the second reaction chamber 1b and the ozone is sprayed through the ozone supply unit 3, the ozone and the hydrogen peroxide react with each other (the reaction formula is omitted because it is a technique known in advanced oxidation technology) ) To generate OH radicals, and organic compounds contained in waste water and the like are decomposed into harmless compounds such as CO ₂ , H ₂ O, or O ₂ .

Since the contact area between the wastewater containing ozone and hydrogen peroxide and the ozone increases through the poling layer 4 by a large number of poles 41, the OH radicals are efficiently reacted, The compound is decomposed more actively.

The ozone remaining in the reaction process is exhausted through the ozone discharge line 13a and then discharged to the ozone supply unit 3 through the discharge port 15 of the reaction tank main body 1, It is recycled and reused.

Hereinafter, a reaction apparatus for a highly purified wastewater treatment according to another embodiment of the present invention will be described, in which the same reference numerals are assigned to the same constituent elements as those in the above embodiment, and a detailed description thereof will be omitted.

FIG. 5 is a schematic diagram for explaining a technical concept of a reaction apparatus for an oxidation treatment of wastewater according to another embodiment of the present invention, and FIG. 6 is a schematic view of a reaction apparatus for oxidation treatment of wastewater according to another embodiment of the present invention. And a second mixing means.

5, the waste water height for oxidation reaction apparatus according to another embodiment of the invention the reactor body so that the organic compound can be discharged to decompose into harmless compounds, such as CO _2, H2O, or the O ₂ containing such waste water A partition wall 2 which is installed in or built in the reaction tank main body 1 and which divides the containing space of the reaction tank main body into first and second reaction chambers 1a and 1b, an ozone supply part 3, The first mixing chamber 8 is formed in the first reaction chamber 1a so as to improve the mixing efficiency of the wastewater and the hydrogen peroxide and the second mixing chamber 8 is formed in the second reaction chamber 1b And a second mixing means (9) which is constituted by a second mixing means (9).

The first mixing means 8 can be selected and applied as long as it is a structure or apparatus capable of increasing the contact area between hydrogen peroxide and wastewater. However, in this embodiment, it is important to ensure smooth flow of wastewater. Therefore, A plurality of guide members 81 are provided so as to stagger on the inner wall surface of the reaction vessel body 1 and the partition wall 2 so as to form a passage of a zigzag structure in the inner wall 1a. At this time, the guide member 81 is constituted by arranging a substantially rectangular plate-like member on the inner wall surface of the partition wall 2 and the reaction vessel body 1 by a welding coupling method or a bolt coupling method.

The second mixing means 9 comprises an agitator 9a for increasing the contact area between ozone and wastewater through a rotation operation.

The agitator 9a may be configured to include a separate driving motor for rotating the blades. In this embodiment, the ozone supplying unit 3 may be provided with an ozone supplying unit 3 for simplifying the structure, As shown in FIG.

 More specifically, as shown in FIG. 6, the ozone supply unit 3 is composed of a pipe-shaped spray rod 31 having a plurality of spray holes 31a for spraying ozone supplied from an ozone supply source, And a plurality of blades 92 formed on the outer surface of the rotary housing 91 so as to protrude equally from the outer surface of the rotary housing 91. [

A bushing 93 or a bearing is inserted into a center hole of the rotary housing 91 so that the rotary housing 91 can be inserted into the spout 31 and smoothly rotated.

The blades 92 are formed of a synthetic resin thin plate or a thin metal plate having corrosion resistance and chemical resistance and are formed to face each other so as to be rotated by receiving the pressure of the ozone sprayed through the spray holes 31a, (92) is formed to be wide enough to cover the forming position of the jet hole so as to receive jetting pressure of the jetted ozone.

In the reaction apparatus for the oxidation treatment of wastewater according to another embodiment of the present invention, as described above, the wastewater is purified by a similar reaction, but the wastewater and the hydrogen peroxide are removed from the upper part of the first reaction chamber 1a The turbulence is generated while passing through the flow path of the zigzag structure formed by the plurality of guide members 81 in the process of moving to the lower part, so that the mixing action of the wastewater and the hydrogen peroxide is effectively performed, and the mixing speed and reaction efficiency are improved .

Since the second reaction chamber 1b is provided with the agitator 9a that rotates by the ejection pressure of the ozone sprayed through the ozone supply unit 3, the contact area between the ozone and the hydrogen peroxide is increased and actively reacted, It is possible to prevent the reduction of the removal efficiency of the organic compound due to the excessive introduction of hydrogen peroxide.

It is to be understood that the present invention is not limited to the above-described embodiment, and that various modifications and changes may be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

It is to be understood that the terminology used in describing the above embodiments is only used to describe specific embodiments and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. It is also to be understood that the terms "comprising" or "having ", when used in this specification, specify a feature, a number, a step, an operation, an element, a component or a combination thereof, , Steps, operations, elements, components, or combinations thereof, as a matter of principle.

1: Reactor main body 1a: First reaction chamber
1b: second reaction chamber 11: body part
12: sinking part 12a: drain line
13: exhaust part 13a: ozone exhaust line
14: inlet 15: outlet
2: partition wall 21: flow opening
3: ozone supply unit 31:
31a: Spouting hole 4: Polling layer
41: Polling 42: Polling installation member
7: support frame 8: first mixing means
81: guide member 9: second mixing means
9a: stirrer 91: rotating housing
92: Blade 93: Bushing

Claims (6)

1. A reaction apparatus for high-purity water and wastewater treatment capable of performing an advanced oxidation process of ozone (O ₃ ) / hydrogen peroxide (H ₂ O ₂ ) (Peroxone AOP)
A reaction tank body formed to have a receiving space therein;
A first reaction chamber provided in the reaction vessel body for partitioning the accommodation space into a first reaction chamber in which wastewater and hydrogen peroxide are introduced and reacted and a second reaction chamber communicating with the first reaction chamber and being reacted with and discharged from the ozone water, ;
An ozone supply unit installed in the reactor body to supply ozone to the second reaction chamber; And
And a polling layer disposed inside the second reaction chamber and having a plurality of pall rings embedded therein for increasing a reaction area between ozone and wastewater.
The method according to claim 1,
The reactor main body includes a tubular body portion formed with an inlet for introducing wastewater into the upper portion of the first reaction chamber and an outlet for discharging wastewater through the upper portion of the second reaction chamber. A sinking part formed in a cone shape and coupled to a lower part of the body part and connected to a drain line for discharging sediment at a lower end; And an exhaust part formed in a cone shape and coupled to an upper part of the body part and connected to an ozone discharge line for discharging unreacted ozone at an upper end,
Wherein the first and second reaction chambers communicate with each other through a flow opening provided in a lower portion of the partition wall.
3. The method of claim 2,
Wherein the ozone discharge line is connected to the ozone supply unit to reuse the discharged ozone.
4. The method according to any one of claims 1 to 3,
A first mixing means constituted in the first reaction chamber so as to improve mixing efficiency of wastewater and hydrogen peroxide; And
And second mixing means in the second reaction chamber so as to improve mixing efficiency of the wastewater and ozone.
5. The method of claim 4,
Wherein the first mixing means comprises a plurality of guide members protruding from the inner wall surface of the reaction vessel body and staggered from each other so as to form a passage having a zigzag structure in the first reaction chamber,
Wherein the second mixing means comprises an agitator for increasing the contact area between the ozone and the wastewater through the rotation operation.
6. The method of claim 5,
Wherein the ozone supply portion is constituted by a pipe-shaped discharge rod having a plurality of discharge holes for discharging ozone supplied from an ozone supply source,
Wherein the agitator has a structure in which a plurality of blades are rotatably installed in the jetting rod, the blades being arranged to face the jetting hole so as to be rotated by an ejection pressure of ozone, Device.

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