JPH10230285A - High speed ozone reaction system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a system compact and to shorten a treating time by improving an ozone absorption efficiency for the water to be treated and increasing an ozone reaction rate. SOLUTION: In this ozone reaction means, a closed ozone reaction tank 10 is provided, and a feed system 15 of the water to be treated provided with a pressure pump 17 is connected to the ozone reaction tank 10. In the feed system 15 of the water to be treated, an ozone injection means 14 injecting a generated ozone from an ozone generator 12 is provided on the upstream side of the pressure pump 17. The water to be treated with the ozone injected is pressurized with the pressure pump 17 and sent to the ozone reaction tank 10 and subjected to the ozone reaction treatment in the ozone reaction tank 10 while keeping a pressurized state. A treated water subjected to a treatment such as decomposition of an org. matter by the ozone reaction is evacuated with an evacuating means and discharged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ozone reaction system for subjecting water to be treated, such as tap water, sewage, rainwater, domestic waste water, to ozone reaction, and more particularly to an ozone reaction system capable of improving ozone absorption efficiency in treated water. The present invention relates to a high-speed ozone reaction system having an improved reaction rate.

[0002]

2. Description of the Related Art Conventionally, this kind of ozone reaction system has
Inject ozone into the water to be treated guided into the ozone reaction tank and allow it to dissolve. The dissolved ozone causes a chemical reaction (oxidation reaction) to deodorize, decolorize, sterilize, insolubilize and remove dissolved inorganic substances, and organic Ozone reaction treatment such as low molecular weight (decomposition of organic substances) is performed (see Japanese Patent Application Nos. 5-77159 and 7-98858).

In the conventional ozone reaction system, an ozone injection device 2 for injecting ozone into an ozone reaction tank 1 is installed in order to accelerate the ozone reaction treatment.
The ozone bubbles from the water are finely foamed by the diffuser
And ozone reaction treatment is performed by dissolving it by gas-liquid contact. In order to efficiently absorb and dissolve ozone injected into the water 4 to be treated, the ozone bubbles are miniaturized to increase the bubble contact area.

However, in the conventional ozone reaction system, an ozone injector 2 provided with an air diffuser 3 is installed in an ozone reaction tank, and gas-liquid contact between the water 4 to be treated and ozone (or a mixture of ozone and air) is performed. Regardless of the effort to increase the area, the absorption efficiency of ozone absorbed by the water to be treated 4 is 80%.
% To 90%, the remaining ozone is not dissolved in the water 4 to be treated and is discharged as waste ozone. Since the ozone absorption efficiency in the water to be treated is small due to the low ozone absorption efficiency absorbed by the water to be treated 4 and the ozone reaction rate is low, it takes about 20 to 30 minutes in the ozone reaction tank. As a result, the entire system including the ozone reaction tank 1 is increased in size and complexity.

In the conventional ozone reaction system, since the ozone absorption efficiency is low, the amount of waste ozone increases, and a large waste ozone decomposition tank 5 is required. The waste ozone that is not absorbed (dissolved) in the water to be treated 4 decomposes the waste ozone activated in the waste ozone decomposition tank 5 and adjusts the ozone concentration to 0.01 PPM or less, which is compatible with the environment, and releases the ozone into the atmosphere. Has released.

Generally, ozone (O ₃ ) is an allotrope of oxygen and has toxicity, and may damage human lungs and the like. Therefore, ozone released into the atmosphere has an ozone concentration of 0.01 PPM or less. Regulations. For this reason, the waste ozone discharged from the ozone reaction tank 1 is guided to a large waste ozone decomposition tank 5, and the activated ozone contained in the waste ozone decomposition tank 5 releases waste ozone into harmless oxygen instead of harmless oxygen. doing.

However, the decomposition rate of ozone in the air (half-life is about half a day to one day and half-life in water (20 to
Because the waste ozone decomposing tank 5 is longer than (30 minutes), the size of the waste ozone decomposition tank 5 may be increased and the installation area may be increased. Further, since the amount of waste ozone is large, the amount of activated carbon stored in the waste ozone decomposition tank 5 is also increased.
It was necessary to periodically maintain the waste ozone decomposition tank 5. Further, since the ozone injecting device 2 is installed in the ozone treatment tank 1 and the ozone injecting device 2 is provided with the air diffuser 3, the internal structure of the ozone treatment tank 1 is complicated, and the ozone treatment tank 1 is simplified. It was difficult to simplify.

[0008]

The conventional ozone reaction system has low ozone absorption efficiency to the water to be treated, so that the amount of waste ozone is large, and a large waste ozone decomposition tank is required. The amount of activated carbon stored in the tank is large,
Also, regular maintenance was required.

Further, the conventional ozone reaction system has a low ozone reaction rate due to poor ozone absorption efficiency of the water to be treated, and cannot shorten the ozone reaction time. It was difficult to reduce the size and size of the system as a whole due to its large size. Further, an ozone injection device is installed in the ozone reaction tank 1,
Since the ozone injecting device is provided with the air diffuser, the internal structure in the ozone reaction tank 1 becomes complicated, and there is a possibility that a maintenance gap may be required.

The present invention has been made in view of the above circumstances, and provides a high-speed ozone reaction system capable of improving the efficiency of absorbing ozone into the water to be treated and increasing the ozone reaction rate. Aim.

Another object of the present invention is to increase the efficiency of ozone absorption into the water to be treated, thereby improving the reaction efficiency, shortening the ozone reaction time, and achieving a high-speed ozone reaction capable of reducing the size and size of the system. In providing the system.

Another object of the present invention is to provide a high-speed ozone reaction system in which waste ozone is suppressed while improving the ozone absorption efficiency to reduce the size and simplification of the ozone reaction tank.

Still another object of the present invention is to provide a high-speed ozone reaction system in which the ozone absorption efficiency is set to 100%, the generation of waste ozone is prevented beforehand and surely, and a waste ozone decomposition tank is not required.

Another object of the present invention is to provide a high-speed ozone reaction system capable of stably and smoothly injecting ozone into water to be treated and saving labor.

Still another object of the present invention is to provide a high-speed ozone reaction system capable of promoting the dissolution and absorption of ozone in the water to be treated and improving the reaction rate.

Still another object of the present invention is to provide a high-speed ozone reaction system which is suitable for the environment by optimally controlling the amount of ozone injected into the water to be treated, suppressing waste ozone.

[0017]

According to a first aspect of the present invention, there is provided a high-speed ozone reaction system according to the present invention, comprising a pressurized pump for supplying water to be treated, in order to solve the above-mentioned problems. A treated water supply system, an ozone generating means for generating a required concentration of ozone, an ozone injection means for injecting the generated ozone upstream of the pressure pump of the treated water supply system, and an ozone reaction of the supplied treated water. Ozone reaction processing means for performing an ozone reaction treatment while maintaining a pressurized state in the tank, and decompression means for reducing the pressure of the ozone-reacted treated water to atmospheric pressure, wherein the treated water is discharged through the decompression means. is there.

In order to solve the above-mentioned problems, a high-speed ozone reaction system according to the present invention is provided with a gas-liquid separation tank downstream of the decompression means as described in claim 2, and this gas-liquid separation tank While the gas component separated into gas and liquid is guided to the ozonolysis tank, the liquid component separated in the gas / liquid separation tank is discharged, or the gas component is separated into the gas / liquid separation tank as described in claim 3. An ozone densitometer is provided, and a waste ozone suppression control system for adjusting and controlling the amount of ozone supplied to the ozone injecting means so as to suppress waste ozone by a monitor detection signal detected by the ozone densitometer is provided.

Further, in order to solve the above-mentioned problems, a high-speed ozone reaction system according to the present invention is characterized in that the ozone generating means is 200 g / Nm ³ class or 300 g / Nm ³ to 350 g. Or a high-concentration ozone generator for generating ozone at a concentration of / Nm ³ class; and, as described in claim 5, the ozone generating means is a normal concentration of 20 g / Nm ³ class or several tens g / Nm.
^Tertiary or hundred g / Nm ^tertiary ozone generator for generating ozone concentration is obtained using.

Further, in order to solve the above-mentioned problems,
In the high-speed ozone reaction system according to the present invention, as described in claim 6, the ozone injection means is provided on the upstream side of the pressurizing pump, while the ozone injection means is connected to a supply flow path of the water supply system. And a diffuser tube for generating fine bubbles.

Further, in order to solve the above-mentioned problem, a high-speed ozone reaction system according to the present invention is provided in claim 7.
As described in (1), the main flow path for guiding the water to be treated and the branch flow path for flowing a predetermined constant flow rate are merged, while the injector provided in the branch flow path constitutes ozone injection means.

Further, in order to solve the above-mentioned problem, a high-speed ozone reaction system according to the present invention is provided in claim 8.
As described in the above, the pressurizing pump reduces the bubbles of the water to be treated injected with ozone to at least 3 atg (0.
4MPa) and at least 3at inside the ozone reactor
g is maintained at a predetermined pressure by a pressure adjusting means; and, as described in claim 9, the pressurized pump is provided with at least 5 atg (0.6MPg) of ozone-injected water to be treated.
The pressure is increased in a), and the inside of the ozone reactor is adjusted and maintained at a predetermined pressure of at least 5 atg by pressure adjusting means.

According to a tenth aspect of the present invention, there is provided a high-speed ozone reaction system according to the present invention, wherein the ozone reaction treatment means comprises a treatment water to be treated in an ozone reaction tank. A chemical solution injecting means for adjusting and controlling the pH value to 8 or less is provided, and a pH adjusting chemical solution is injected into the ozone reaction tank from the chemical solution injecting means.

Further, in order to solve the above-mentioned problem,
In the high-speed ozone reaction system according to the present invention, as described in claim 11, the ozone reaction tank is connected to the waste ozone decomposition tank, and the gas component of the water to be treated separated in the ozone reaction tank is separated into waste ozone. The ozone reaction tank is discharged into the atmosphere through a decomposition tank, and the helical flow path is internally inserted in the ozone reaction tank by inserting a spiral torsion plate in an axial direction in a sealed cylinder. Further, as described in claim 13, the ozone reaction tank is provided with one or more agitators therein.

On the other hand, in order to solve the above-mentioned problem, in the high-speed ozone reaction system according to the present invention, as described in claim 14, the treated water supply system includes a pressurized pump provided in the treated water supply passage. Are provided in parallel with each other, and a water supply pump is provided in the bypass passage.

On the other hand, in order to solve the above-mentioned problem, in the high-speed ozone reaction system according to the present invention, as described in claim 15, the treated water supply system has a feedback flow path from the discharge side of the pressure pump. Branching and connecting this feedback flow path to the suction side of the pressurizing pump; and, as set forth in claim 16, in the water supply system, a mixer or an ultrasonic vibrator is provided downstream of the pressurizing pump. Further, as described in claim 17, the ozone reaction processing means includes a plurality of ozone reaction tanks arranged in parallel with each other.

According to another aspect of the present invention, there is provided a high-speed ozone reaction system according to the present invention, wherein the ozone reaction processing means comprises a plurality of ozone reaction units connected in series in multiple stages. A tank is provided, and each ozone reaction tank is set so as to gradually reduce the internal pressure from the upstream side to the downstream side.

Further, in order to solve the above-mentioned problems,
In the high-speed ozone reaction system according to the present invention, as described in claim 19, an ozone reaction tank is provided with a treated water drainage system for discharging treated water subjected to the ozone reaction treatment, and the treated water drainage system is depressurized. Pressure reducing means, a backwashing means arranged in parallel with the pressure reducing means, and a solids separating and removing means for removing solids from the treated water.

According to a twentieth aspect of the present invention, there is provided a high-speed ozone reaction system according to the present invention. And ozone generating means for generating ozone of a required concentration, ozone injection means for injecting the generated ozone upstream of the pressure pump of the water supply system, and water to be supplied supplied from the water supply system. An ozone reaction treatment means for performing an ozone reaction treatment while maintaining a pressurized state in the ozone reaction tank; and a decompression means for reducing and discharging the treated water subjected to the ozone reaction treatment. A scroll flow path is formed in the lower part of the tank, and the water to be treated is guided in the scroll flow path.

Further, in order to solve the above-mentioned problems,
In the high-speed ozone reaction system according to the present invention, the ozone reaction processing means is connected to the upstream ozone reaction tank via an inverted U-shaped connection pipe. A downstream ozone reaction tank, which also serves as a gas-liquid separation tank for separating the water to be treated into gas and liquid.

Further, in order to solve the above-mentioned problem, a high-speed ozone reaction system according to the present invention is provided in claim 2.
As described in 2, the downstream ozone reaction tank is provided with a connection pipe for discharging gas-liquid separated treated water to a recovery tank, and the connection pipe is provided with a pressure reducing means for reducing the pressure of the treated water to atmospheric pressure. Further, as described in claim 23, the downstream ozone reaction tank is connected to a waste ozonolysis tank for recovering gas components separated into gas and liquid, and the gas components are discharged to the atmosphere via the waste ozonolysis tank. It was released.

Furthermore, in order to solve the above-mentioned problem, a high-speed ozone reaction system according to the present invention is provided in claim 2.
As described in 4, the treated water supply system is provided with a plurality of treated water supply flow paths, and each of the treated water flow paths is provided with a pressurizing pump and an ozone injection means on the pressure pump suction side. is there.

[0033]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a high-speed ozone reaction system according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a basic system configuration diagram showing a first embodiment of the high-speed ozone reaction system according to the present invention.

In FIG. 1, reference numeral 10 denotes an ozone reaction tank having a closed structure which constitutes an ozone reaction processing means of a high-speed ozone reaction system. The ozone reaction layer 10 is a pressure vessel capable of withstanding high pressure, and the inside of the ozone reaction tank 10 has a pressure exceeding atmospheric pressure, preferably 3 atm, during the ozone reaction treatment.
The pressure is adjusted and maintained by the pressure adjusting means 11 at a pressure of at least g, more preferably at least 5 atg, for example, at 5 atg.

The high-speed ozone reaction system has an ozone generator 12 as ozone generating means for generating ozone for reaction processing. 200 g /
A high-concentration ozone generator that generates ozone having an Nm ₃ class concentration is suitably used. The ozone generator 12 has, for example, 3
Even if an ultra-high concentration ozone generator for generating ozone having a concentration of from 00 g / Nm _{3 to} 350 g / Nm ₃ is used,
be used concentration ozone generator in generating the g / Nm ₃ Grade concentration of ozone, may be used conventional concentration ozone generator further generates a 20 g / Nm ₃ grade conventional concentrations of ozone. The ozone generated by the ozone generator 12 is actually a mixed gas (O ₃ +) in which ozone and oxygen or Air are mixed.
O ₂ or air).

The ozone generated by the ozone generator 12 is guided to an ozone injection means 14 after the flow rate of the ozone is adjusted by a flow rate adjuster 13 such as a flow rate adjustment valve. Channel (inflow pipe)
15a is injected. The operation of the flow regulator 13 is controlled by the control device 16, and the amount of injected ozone is adjusted. The ozone injection means 14 for injecting ozone into the water to be treated is installed on the suction side (upstream side) of the pressure pump 17 constituting the pressure pump means. A vortex pump, a screw pump, or a gear pump is preferably used as the pressurizing pump 17.

The water to be treated includes clean water, rainwater, river water,
Other than lake water, there is domestic wastewater such as sewage.
By providing the pressure pump 4 on the suction side of the pressure pump 17, ozone (O ₃ ) can be injected at a low pressure, and power saving and easy ozone injection can be achieved.

As the ozone injection means 14, FIG.
The structure shown in (A), (B) or (C) is used.
2A, a gas injection pipe 18 for ozone or the like from the ozone generator 12 is inserted into the supply flow path 15a of the water-to-be-treated supply system 15 and is directed toward the downstream side of the water-to-be-treated supply path 15a. It is an opening.

FIG. 3B shows the water supply system 15 to be treated.
Diffuser 1 such as a ceramic film diffuser in the supply passage 15a
The gas injection pipe 18 from the ozone generator 12 is connected to the diffuser pipe 19, and the ozone bubbles injected into the water to be treated are finely injected. By this foaming, the gas-liquid contact area between the water to be treated and ozone can be increased.

FIG. 2C shows the water supply system 15 to be treated.
The main passage 15a is provided with a branch passage 15b which merges with the supply passage (main passage) 15a, and a gas injection pipe 18 is connected to a narrow portion of the branch passage 15b to constitute an injector 20. The branch flow path 15b may be a branch from the main flow path 15a of the water-to-be-processed water supply system 15, but water at a constant flow rate (water to be processed) is constantly flowed, and ozone is forced from the gas injection pipe 18 using the ejector effect. It is intended to be made to be sucked. This takes into account the variation in the amount of water to be treated guided through the main flow path 15a.

The ozone injection means 14 shown in FIGS. 2A, 2B or 2C is provided on the suction side of the pressure pump 17. The water to be treated, into which ozone has been injected by the ozone injection means 14, is subsequently supplied with a pressure pump 17 at a gauge pressure of 3 atg (0.4 MPa) or more, preferably 5 atg.
g (0.6 MPa) or more, for example, 5 atg.
The ozone bubbles injected into the water to be treated by the pressurization by the pressurizing pump 17 are mixed into fine bubbles. 3atg
It has been found for the first time that ozone bubbles are crushed by the above-described pressurization, and nearly 100% of the ozone bubbles are mixed and dissolved in the water to be treated. By applying a pressure of, for example, about 5 atg with a pressure pump, the ozone bubbles are crushed and completely mixed and dissolved in the water to be treated, and the water to be treated becomes an ozone dissolved state in which no ozone bubbles, that is, undissolved ozone is present. (See FIG. 4).

The ozone bubbles mixed by the pressurization of the pressurizing pump 17 are made into fine bubbles, mixed into the water to be treated and dissolved. In this dissolved state, it is sent into an ozone reaction tank 10 as an ozone reaction processing means.

The water to be treated is supplied from the top or top of the ozone treatment tank 10 and is subjected to an ozone reaction treatment in the ozone reaction tank 10. Due to this ozone reaction, dissolved ozone (dissolved ozone) dissolved in the water to be treated contributes to a chemical reaction (oxidation reaction) as shown in FIG. 4 to oxidatively decompose water pollutants and deodorize the water to be treated. It performs decolorization, sterilization, insolubilization and removal of dissolved inorganic substances such as iron and manganese, and decomposition and reduction of molecular weight of organic substances.

Thereafter, the inside of the ozone reaction tank 10 is adjusted and held in a pressurized state by a pressure adjusting means 11, for example, 3 at.
The pressure is adjusted and maintained at a pressure of at least g, preferably at least 5 atg, for example, 5 atg. By maintaining the inside of the ozone reaction tank 10 in a pressurized state, ozone is in a dissolved state, so that the efficiency of absorbing ozone into the water to be treated in the ozone reaction tank 10 increases,
The ozone reaction speed is improved, and the ozone reaction time can be shortened. Therefore, the ozone reaction tank 10 is small and
Compactness can be achieved. Moreover, since it is not necessary to provide an ozone injecting device or an air diffuser inside the ozone reaction tank 10, simplification and simplification of the inside of the tank become possible.

In order to shorten the ozone reaction time, it is effective to increase the pressure in the ozone reaction tank 10, increase the ozone concentration, increase the gas-liquid contact area, and lower the water temperature. Generally, the ozone (gas) dissolution rate N is

(Equation 1) Is represented by From this equation (1), in order to shorten the ozone reaction time and to improve the ozone dissolution rate,
It has been found that increasing the pressure in the ozone reaction tank 10, increasing the ozone concentration, and increasing the gas-liquid contact area have particularly great effects.

The pressure adjusting means 11 is an ozone reactor 1
A pressure gauge 22 for detecting the pressure within the pressure range 0, and a pressure regulator 23 which operates by inputting a pressure detection signal from the pressure gauge 22.
And a pressure regulating valve 24 whose operation is controlled by an operation control signal from the pressure regulator 23.

The pressure control valve 24 is an outlet pipe 26 connecting the lower or bottom part of the ozone reaction tank 10 to the gas-liquid separation tank 25.
, And constitutes a decompression means of the treated water treated in the ozone reaction tank 10, and the treated water is decompressed to almost the atmospheric pressure. The treated water reduced in pressure by the pressure regulating valve 24 is subsequently guided to a gas-liquid separation tank 25. In the gas-liquid separation tank 25, the treated water is gas-liquid separated into a gas component and a liquid component. The liquid component is discharged as treatment water through a pipe 26 into an environmental system such as a river, or collected in a treatment tank (not shown) for reuse.

On the other hand, the gas component separated into gas and liquid in the gas-liquid separation tank 25 is guided to a waste ozone decomposition tank 30 by a blower 29, while the concentration of waste (remaining) ozone contained in the gas component is measured by an ozone concentration meter 31. Measured. Ozone concentration meter 31
The ozone detection (monitor) signal is input to the control device 16 and subjected to signal processing, and the control device 16 outputs a control signal for controlling the operation of the flow regulator 13. That is, the remaining ozone concentration is precisely measured by the ozone concentration meter 31 and fed back to the flow rate regulator 13, and the flow rate regulator 13 controls the ozone injection amount.

The ozone concentration meter 31, the control device 16 and the flow controller 13 constitute a waste ozone suppression control system 33. The waste ozone suppression control system 33 controls the flow controller 13 such as an ozone flow control valve. The operation is controlled and the amount of injected ozone is adjusted to adjust the amount of waste ozone to zero or suppressed.

On the other hand, the gas component guided to the waste ozone decomposing tank 30 is decomposed into ozone so that the waste ozone concentration becomes equal to or less than the ozone concentration (0.01 PPM) suitable for the environment, and then released into the atmosphere. It is supposed to be. The waste ozone decomposition tank 30 contains an ozone adsorbent such as silica gel or activated carbon as an ozone adsorbent inside.

In this high-speed ozone reaction system, ozone injected into the water to be treated is supplied to the pressure pump 1
When the mixture is mixed at 7 and pressurized to 3 atg or more, the ozone bubbles are crushed and dissolved into the water to be treated, and the amount of the ozone dissolved becomes almost 100%, so that the ozone bubbles (non-dissolved ozone) do not exist. Then, when the inside of the ozone reaction tank 10 is maintained at a pressurized state of 3 atg or more, the injected ozone is almost completely crushed and dissolved in the water to be treated, dissolved in the water to be treated, and becomes ozone water. Ozone reactor 10
When the pressure inside is 5 atg or more, the ozone bubbles are completely crushed and dissolved into the water to be treated and dissolved, and all the ozone becomes dissolved ozone (dissolved ozone) which contributes to the ozone reaction.

In this case, since there is no undissolved ozone that does not contribute to the ozone reaction, the ozone reaction in the ozone reaction tank 10 is effectively and efficiently performed, the ozone reaction efficiency is improved, and the ozone reaction time is shortened. You. Further, since there is no undissolved ozone in the ozone reaction tank 10, the waste ozone is not included in the gas component which is gas-liquid separated in the gas-liquid separation tank 25. Therefore, in practice, the waste ozonolysis tank 30 becomes unnecessary, and can be released directly into the atmosphere.
The waste ozonolysis tank 30 functions as a security ozonolysis tank and is not necessary. The waste ozone decomposition tank 30 may be connected to the ozone reaction tank 10 via a pressure reducing valve (not shown).

The ozone injected into the water to be treated is mixed with the water to be treated by a pressure pump and pressurized, so that no undissolved ozone is present, and all of the ozone becomes dissolved ozone. Most of the ozone dissolved in the water to be treated contributes to the ozone reaction to treat the water to be treated, as shown in FIG. Part of the dissolved ozone is self-decomposed in the water to be treated and becomes oxygen (O ₂ ).
And the remaining part is introduced into the gas-liquid separation tank 25 in a state of being dissolved (dissolved) ozone mixed with the treated water. The rate of self-decomposition of ozone is about half a day to about one day in the atmosphere, but is short in water, about 30 minutes to several tens of minutes, so that there is no problem in measures against activated oxygen.

The ozone reaction tank 10 is provided with a chemical injection means 34 for adjusting the pH of the water to be treated. The chemical liquid injection means 34 includes a chemical liquid tank 35 that stores a chemical liquid for adjusting pH such as sulfuric acid or hydrochloric acid. The chemical stored in the chemical tank 35 is pressurized and injected into the ozone reaction tank 10 via the chemical injection pipe 36 by the pump 37, and the pH of the water to be treated is adjusted.
Is 8 or less, preferably 7.5 or less, more preferably 7.
The pH is adjusted so as to be 0 or less to promote the oxidation treatment by the ozone reaction. The chemical injection pipe 36 may be connected to the suction side of the pressure pump 17 so that the chemical in the chemical tank 35 can be smoothly supplied.

In this high-speed ozone reaction system,
Ozone reaction tank 1
0, gas-liquid separation tank 25, waste ozone decomposition tank 30, various pipes 1
For 5, 18, 27, 32, a rust preventive material and a non-rust-proof material are used. For example, a material that does not react with ozone, such as a fluorine resin material, is used for the SUS material and the seal packing.

In this high-speed ozone reaction system, the ozone injected into the water to be treated is pressurized and crushed while being mixed by the pressure pump 17, and the water to be treated is subjected to the ozone reaction in the ozone reaction tank 10 while maintaining the pressurized state. By doing so, it is possible to promote ozone dissolution and ozone absorption in the water to be treated, improve the ozone reaction rate, and shorten the ozone reaction time. Almost 100 ozone absorption efficiency by ozone dissolution
%, The ozone reaction time can be greatly reduced, and the size and size of the system can be reduced. The ozone reaction time can be reduced from the conventional 10 to 20 minutes to about 5 by increasing the reaction rate.
In addition, the amount of waste ozone discharged can be suppressed, and it is easy to adapt to the environment.

FIG. 5 shows a second embodiment of the high-speed ozone reaction system according to the present invention.

In describing the high-speed ozone reaction system shown in this embodiment, the same components as those in the high-speed ozone reaction system shown in FIG. In this ozone reaction system, the inside of the ozone reaction tank 10 is at least 3 atg (0.4 MPa), preferably 5 atg (0.4 MPa).
6 MPa) or more, for example, suitable for a system pressurized to 5 atg.

In the high-speed ozone reaction system shown in FIG. 5, the water to be treated into which ozone has been injected is pressurized to 3 atg or more, preferably 5 atg, while being mixed by the pressurizing pump 17. It is fed into the tank from the bottom. The supplied water to be treated is subjected to an ozone reaction treatment in the ozone reaction tank 10 to become treated water, which is discharged into an environment such as a river through an outflow pipe 27 connected to an upper portion or a top portion, or a treatment not shown. It is stored in a tank and reused. In the middle of the outflow pipe 27, a pressure regulating valve 24 is provided as pressure reducing means for returning the treated water to the atmospheric pressure.

The top of the ozone reaction tank 10 is connected to a waste ozone decomposition tank 30, and undissolved ozone not contributing to the ozone reaction in the ozone reaction tank 10 is collected in the waste ozone decomposition tank 30. It is adsorbed by an ozone adsorbent such as activated carbon or silica gel as an ozone adsorbent, or is decomposed by ozonolysis, and the ozone concentration is adjusted to an ozone concentration (0.01 PPM) or less suitable for the environment and released to the atmosphere.

At this time, by maintaining the inside of the ozone reaction tank 10 at a gauge pressure of 3 atg or more, preferably 5 atg or more, for example, 5 atg by adjusting the valve opening of the pressure regulating valve 24,
The water to be treated is in a completely dissolved ozone state in which no undissolved ozone is present, and the water to be treated is effectively and effectively treated with dissolved (dissolved) ozone. Therefore, in practice, it is treated by dissolved ozone in the reaction process shown in FIG. 4, and no undissolved ozone is present, and almost no waste ozone is generated.

For this reason, the waste ozonolysis tank 10 actually functions as a security ozonolysis tank and is not necessary. A security concentration meter 40 is installed in the middle of the discharge pipe 39 from the waste ozone decomposition tank 10, detects a small concentration of waste ozone by the concentration meter 40, and outputs a detection (monitor) signal to the control device 41. I have. The control device 41 performs an operation control (voltage control) on the ozone generator 12 by performing signal processing on the ozone detection signal,
The amount of ozone generated is adjusted.

The ozone generator 12 has several tens g / Nm _3.
A medium-concentration ozone generator for generating ozone having a class concentration, a high-concentration ozone generator for generating ozone exceeding a medium concentration, and an ultra-high-concentration ozone generator are preferably used.

In this high-speed ozone reaction system, the water to be treated, into which ozone has been injected, is pressurized while being mixed by the pressurizing pump 17, thereby miniaturizing and crushing the ozone bubbles to increase the gas-liquid contact area. . Ozone reactor 1
0 is 3 atg or more, preferably 5 atg or more, for example, 5 atg.
By increasing the pressure to about g, the ozone (gas) saturation concentration is increased to improve the solubility of ozone in the water to be treated, and the ozone reaction (oxidation reaction) in the water to be treated is promoted to promote the decomposition of organic substances. Generation of waste ozone can be almost completely suppressed.

In this high-speed reaction system, the insoluble ozone is not contained in the treated water treated in the ozone reaction tank 10, so that the waste ozone can be suppressed. Can be released into the environment. Also in this case, the ozone reaction time can be shortened by improving the ozone absorption efficiency, the gas-liquid separation tank becomes unnecessary, and the system including the ozone reaction tank 10 can be reduced in size and size. The ozone reaction tank 10 can be simplified and simplified.

Reference numeral 43 denotes a plurality of ozone concentration meters attached to the ozone reaction tank 10. By attaching a plurality of ozone concentration meters 43 to the ozone reaction tank at different heights, the ozone concentration dissolved in the water to be treated in the ozone reaction tank 10 can be detected, and the ozone reaction processing state can be watched.

FIG. 6 shows a third embodiment of the high-speed ozone reaction system according to the present invention.

This high-speed ozone reaction system is a system characterized by an ozone reaction tank constituting an ozone reaction processing means. The same components as those of the high-speed ozone reaction system shown in FIG.

The high-speed ozone reaction system shown in FIG. 6 improves the freedom of installation of the ozone reaction tank 45, ensures a sufficient ozone reaction distance, and makes the gas-liquid contact between the water to be treated and ozone uniform. It is intended to be able to be performed efficiently.

The ozone reaction tank 45 is constituted by a cylinder 46 as a closed pressure vessel having a cylindrical shape, preferably a cylindrical shape.
6, a spiral torsion plate 47 is inserted in the axial direction. Then, the water to be treated pressurized by the pressure pump 17 is supplied from one side of the ozone reaction tank 45 to perform the ozone reaction treatment, and the treated water subjected to the ozone reaction treatment is taken out from the other side of the ozone reaction tank 45, The pressure is reduced to atmospheric pressure in the liquid separation tank 25 by a pressure regulating valve (pressure reducing valve) 24 as a pressure reducing means, and then guided.

The ozone reaction tank 45 may be of a horizontal type or a vertical type as shown in FIG. 6 according to the installation space, so that the degree of freedom in installation is improved. The ozone reaction tank 45 has a swirl tube structure in which a spiral torsion plate 47 is inserted into a cylindrical tube 46, so that the water to be treated pressurized by the pressure pump 17 is supplied to the ozone reaction tank 45. 4
5 spirally swirls through the inside to ensure an ozone reaction distance. The water to be treated is brought into efficient and uniform gas-liquid contact with ozone, and the ozone reaction is promoted.

At this time, even if the ozone reaction tank 45 is installed horizontally in a horizontal type, the gas remains in the ozone reaction tank 45.
Since the gas-liquid contact is promoted by the swirling flow without accumulating in the upper part of the tank, the ozone reaction can be efficiently and promptly advanced. Further, since the ozone reaction distance can be sufficiently secured by inserting the spiral torsion plate 47 into the ozone reaction tank 45, the ozone dissolution in the water to be treated under pressure conditions can be ensured in combination with uniform gas-liquid contact. Ozone reaction (oxidation reaction) can be promoted by improving the performance, and organic matter decomposition and the like can be performed efficiently and efficiently, while generation of waste ozone can also be suppressed.

In the high-speed ozone reaction system shown in FIG. 6, one ozone reaction tank 45 may be unitized, and a plurality of ozone reaction tanks may be arranged in parallel according to the processing flow rate of the water to be treated. Reference numeral 48 denotes a bypass valve for bypassing the pressure regulating valve 24, which is provided as a spare.

This high-speed ozone reaction system is a system particularly suitable under the condition of pressurized water where ozone bubbles (gas bubbles) are present in the pressurized water pressurized by the pressurizing pump 17. In step 17, the water to be treated is
It is suitable when pressurizing below atg.

FIG. 7 shows a fourth embodiment of the high-speed ozone reaction system according to the present invention.

In the high-speed ozone reaction system shown in this embodiment, at least one stirrer 50 for stirring the water to be treated is provided in the ozone reaction tank 10. The stirrer 50 is, for example, a stirring fan 52 driven by a motor 51. The rotation of the stirring fan 52 stirs the water to be treated and promotes the dissolution of ozone into the water to be treated.

The inside of the ozone reaction tank 10 is maintained at a required pressure by the pressure adjusting means 11. The pressure adjusting means 11 detects the pressure in the ozone reaction tank 10 and adjusts and controls the opening degree of the pressure adjusting valve 24 by the pressure adjuster 23. The pressure in the ozone reactor 10 is higher than atmospheric pressure, preferably 3 atg.
(0.4 MPa) or more, for example, 5 atg. If the pressure inside the ozone reactor 10 is maintained at a pressure of about 5 atg (0.6 MPa) by the pressure adjusting means 11, no undissolved ozone is present in the liquid to be treated, and no waste ozone is generated. Also, a stirrer 50
Is preferably installed in order to further improve the ozone solubility.

Also in the high-speed ozone reaction system shown in FIG. 7, the solubility of ozone in the water to be treated under pressure conditions is improved, the ozone oxidation reaction is promoted, and the decomposition of organic substances is performed efficiently and effectively. On the other hand, generation of waste ozone can be suppressed.

FIG. 8 shows a fifth embodiment of the high-speed ozone reaction system according to the present invention.

The high-speed ozone reaction system shown in this embodiment is an improvement of the system 15 for supplying the water to be treated to the ozone reaction tank 10, and other structures are shown in the first or fourth embodiment. Is not substantially different from
The same reference numerals are given and the description is omitted.

In this high-speed ozone reaction system, when a gas-liquid pump such as a vortex pump that pressurizes while mixing ozone bubbles is used as a pressure pump 17 as a pressure pump means, the capacity of the gas-liquid pump is not increased at present. Can't expect.
For this reason, the water supply pump 5 having a large pump capacity is provided separately from the pressurizing pump 17 which pressurizes while mixing the ozone bubbles.
5 are juxtaposed to obtain a large flow rate of the water to be treated as a whole. That is, the treated water supply system 15
A bypass passage 56 for bypassing the pressurizing pump 17 and the ozone injection means 14 is provided in the treated water supply passage 15a, and a water supply pump 55 is provided in the bypass passage 56. Reference numeral 57 denotes a flow valve.

In the high-speed ozone reaction system shown in FIG. 8, it is preferable to use a high-concentration ozone generator or an ultra-high-concentration ozone generator as the ozone generator 12. It is more desirable to provide a mixer (not shown) at the junction of the downstream side of the water supply pump 55 and the downstream side of the water supply pump 55, and to mix the water to be treated from both the pumps 17, 55 in a pressurized state. An ultrasonic vibration device may be provided instead of the mixer.

Also in this case, the inside of the ozone reaction tank 10 is kept under high pressure, preferably 3 atg or more, more preferably 5 atg.
g or more, for example, by maintaining at 5 atg, ozone bubbles are crushed and mixed in the water to be treated, and the water is dissolved.
There is no undissolved ozone. Therefore, the ozone solubility is improved, the oxidation reaction in the water to be treated is promoted, and organic matter decomposition can be performed efficiently and efficiently.

FIG. 9 shows a sixth embodiment of the high-speed ozone reaction system according to the present invention.

The high-speed ozone reaction system shown in this embodiment also has an ozone reaction tank 1 similar to that shown in FIG.
This is an improvement of the treated water supply system 15 to zero. Other configurations are not substantially different from those shown in the first embodiment shown in FIG. 1 and the fourth embodiment shown in FIG.

The treated water supply system 15 used in the high-speed ozone reaction system shown in FIG. 9 has an ozone injection means 14 on the suction side of a pressure pump 17 constituting a pressure pump means, A feedback circuit 58 is provided from the discharge side of the pump 17, and the water to be treated branched from the discharge side of the pressurizing pump 17 is returned to the suction side of the pressurizing pump 17 so that the flow rate of the water to be treated flowing through the pump 17 is always constant. To hold. Thereby, the pump discharge pressure from the pressurizing pump 17 can be kept constant, and even if the flow rate of the water to be treated changes,
The pressure inside the ozone reaction tank 10 can be kept at a predetermined value.

By changing the amount of ozone injected into the water to be treated by controlling the voltage of the ozone generator 12, the ozone injection rate can be kept constant regardless of the amount of water to be treated.

The flow rate valve 59 may be provided in the feedback circuit 58, and the downstream side of the flow rate valve 59 may be joined to the downstream side of the ozone injection means 14. Reference numeral 60 denotes a flow meter for measuring the flow rate of the water to be treated.
May be used to monitor the pump discharge flow rate and adjust the opening of the flow rate valve 59.

In this high-speed ozone reaction system,
The flow rate of the water to be treated flowing through the pressurizing pump 17 as the pressurizing pump means can be kept constant, the pump discharge pressure can be maintained at a predetermined value, and the pressure in the ozone reaction tank 10 can be maintained at a predetermined value.

The inside of the ozone reaction tank 10 is subjected to a predetermined high pressure condition,
By maintaining a gauge pressure of preferably 3 atg or more, more preferably 5 atg or more, for example, 5 atg, the ozone solubility in the water to be treated is improved, the ozone oxidation reaction is promoted, and the decomposition of organic matter in the water to be treated is efficiently performed. It can be performed efficiently.

FIG. 10 shows a seventh embodiment of the high-speed ozone reaction system according to the present invention.

In the high-speed ozone reaction system shown in this embodiment, the treated water supply system 15 to the ozone reaction tank 10 is improved and the treated water drainage system (treated water recovery system) 61 from the ozone reaction tank 10 is improved. Is also an improvement. The other configuration is not different from the second embodiment shown in FIG. 5 or the fourth embodiment shown in FIG.

In the high-speed ozone reaction system shown in FIG. 10, a plurality of pressurizing pumps 17 are provided in the water-to-be-treated supply system 15 downstream of the ozone injecting means 14 to increase the flow rate of the water to be treated. On the other hand, a plurality of, for example, two pressure regulating valves 24 as pressure reducing means are installed in the treated water drainage system 61, and one of them is provided as a spare. A backwashing loop 62 is connected in parallel to the pressure regulating valve, and the backwashing operation is performed by the operation of the backwashing loop 62.

When the treated water treated in the ozone reaction tank 10 contains solids, a solids separating / removing means such as an auto strainer (not shown) for separating and removing the solids from the treated water. May be installed in the treated water drainage system 61. In this case, the auto-strainer may be provided in parallel with the pressure regulating valve 24 as the pressure reducing means, or may be provided upstream or downstream of the pressure regulating valve 24.

In this high-speed ozone reaction system, even if the amount of water to be treated increases, a plurality of pressurizing pumps 17 are arranged in parallel to pressurize the water to be treated into which ozone has been injected while mixing the water. Ozone solubility can be improved under pressurized conditions to promote the ozone oxidation reaction of the water to be treated, and the decomposition of organic substances can be performed efficiently and efficiently, while the generation of waste ozone can be suppressed.

FIG. 11 shows an eighth embodiment of the high-speed ozone reaction system according to the present invention.

The high-speed ozone reaction system shown in this embodiment has a plurality of, for example, three ozone reaction tanks 10a, 10a.
0b and 10c, and the water supply system 15
Is provided with a mixer 64 for mixing the water to be treated. The treated water supply system 15 is the same as the treated water supply system 15 of the high-speed ozone reaction system shown in FIG. The mixer 64 is provided between the high-pressure pump means 17 and the ozone reaction processing means.

By installing a plurality of ozone reaction tanks 10a, 10b, 10c in this high-speed ozone reaction system, ozone reaction treatment of a large flow rate of the water to be treated becomes possible.
Even if a large flow rate of the water to be treated is subjected to the ozone reaction, it is not necessary to increase the size of the ozone reaction tank 10, and the size and size of the ozone reaction tank 10 can be reduced.

In this high-speed ozone reaction system, since the water supply system 15 is provided with the mixer 64, the pressurizing pump 17 used for the pressurizing pump means does not necessarily need to be provided with a vortex pump or a screw pump. This is suitable when the water to be treated is pressurized by the pressurizing pump 17 to above atmospheric pressure and about 3 atg. The water to be treated may be atomized using an ultrasonic vibrator instead of the mixer 64 to increase the gas-liquid contact area.

Reference numeral 65 denotes a flow valve.

In the high-speed ozone reaction system shown in FIG. 11, a large flow rate of water to be treated can be subjected to an ozone reaction treatment. The water to be treated is pressurized by the pressurizing pump 17 in a state where ozone is injected, and is mixed by the pressurizing pump 17 and the mixer 64, so that the gas-liquid contact area can be increased, and ozone is efficiently supplied to the water to be treated. Can be dissolved and dissolved.

A plurality of ozone reaction tanks 10a, 10b and 10c are appropriately selected for the water to be treated containing dissolved ozone in accordance with the flow rate. In the ozone reaction tanks 10a, 10b and 10c, the water to be treated is ozone oxidized in a pressurized state. Since the reaction is promoted, it is possible to efficiently and efficiently decompose organic substances in the water to be treated.

FIG. 12 shows a ninth embodiment of the high-speed ozone reaction system.

The high-speed ozone reaction system shown in this embodiment has a plurality of, for example, three ozone reaction tanks 65a and 65.
5b and 65c are connected in series in a series via connection pipes 66a and 66b, and pressure connection valves 67a and 67b as pressure reducing means are provided in each of the connection pipes 66a and 66b.
Other configurations are not different from those shown in FIGS. 1 and 5 to 7.

In this high-speed ozone reaction system,
The ozone reaction tank 65a in the upstream stage has a high pressure of, for example, about 5 atg, and the middle ozone reaction tank 65b has a multistage structure in which the three ozone reaction tanks 65a to 65c are sequentially connected from the upstream side to the downstream side. The ozone reaction tank 65c in the downstream stage is maintained at a low pressure of about 1 atg, and the ozone reaction tanks 65a to 65c are sequentially pressurized differently from the upstream side to the downstream side. It is a thing.

In this case, the ozone reaction treatment is performed by passing the ozone reaction tanks 65a, 65b and 65c in different pressure states, whereby the oxidation reaction of the water to be treated is actively promoted and the water to be treated is further increased. Ozone treatment such as organic matter decomposition can be performed effectively and efficiently, while the amount of waste ozone generated is suppressed.

FIG. 13 shows a tenth embodiment of the high-speed ozone reaction system according to the present invention.

In the high-speed ozone reaction system shown in this embodiment, the ozone reaction tanks 71 and 72 constituting the ozone reaction processing means 70 are formed in a multi-stage system, and the system 15 for supplying the water to be treated to the ozone reaction tank 71 is provided. And the structure of a tank for recovering treated water (release tank) is mainly improved.

The high-speed ozone reaction system shown in FIG. 13 has an upstream ozone reaction tank 71 and a downstream ozone reaction tank 72.
Are connected by, for example, an inverted U-shaped connection pipe 73. The upstream-stage ozone reaction tank 71 is a sealed pressure vessel capable of withstanding high pressure, and a spiral scroll channel 74 is formed in the lower portion of the reaction tank. The gas-liquid contact area is increased above the scroll channel 74. Filler 75 is stored as needed. The filling material 75 is 3 atg or more, preferably 5 atg, in the ozone reaction tank 71 in the upstream stage.
As described above, when the pressure is increased to, for example, about 5 atg, it is not always necessary. The scroll flow path 74 may be formed by a tubular scroll pipe (swirl pipe) and open at a central portion, instead of the whole being opened upward.

The upper or top part of the upstream ozone reaction tank 71 is constituted by a tapered header 76.
6 is connected to a connection pipe 73. This connection pipe 7
Numeral 3 is formed in an inverted U shape and connected to the lower part of the downstream ozone reaction tank 72. A gas-liquid two-phase flow or a liquid flow of water to be treated (ozone water) in which ozone is dissolved flows through the connection pipe 73.

The downstream ozone reaction tank 72 is also constituted by a sealed pressure-resistant pressure vessel, and a spiral scroll channel 77 is formed in the lower part of the reaction tank. Upstream stage ozone reaction tank 71
Is connected to the outer diameter side of the scroll flow channel 77.

The outflow pipe 27 is taken out from the upper part of the downstream-stage ozone reaction tank 72, and this outflow pipe 27 is connected to a recovery tank 78 constituting a release tank for treated water. A pressure regulating valve (pressure reducing valve) 24 is provided in the middle of the outflow pipe 27 as a pressure reducing means for reducing the pressure of the treated water to near atmospheric pressure.

On the other hand, the downstream-stage ozone reaction tank 72 also serves as a gas-liquid separation tank. In the reaction tank 72, the water to be treated is separated into gas and liquid while the ozone reaction treatment is proceeding. The ozone reaction tank 72 is provided with a liquid level detecting means 79 for detecting a liquid level. The liquid level detecting means 79 is, for example, a float 80
A liquid level sensor provided with
Is detected by the control of the control valve 80.

A waste ozone discharge pipe 81 extends from the top of the downstream ozone reaction tank 72. The waste ozone discharge pipe 81 is provided with the control valve 80 and an ozone concentration meter 82 for detecting waste ozone concentration. Can be The ozone concentration meter 82 may be provided at the top of the downstream ozone reaction tank 72. The waste ozone discharge pipe 81 is connected to the waste ozone decomposition tank 30, and the waste ozone decomposition tank 30 is connected to the downstream ozone reaction tank 7.
The gas component separated by gas and liquid in 2 is guided. The waste ozone decomposing tank 30 contains an ozone adsorbent such as activated carbon or silica gel therein, and the adsorbent adsorbs waste ozone contained in gas components.

The gas components discharged into the waste ozone decomposing tank 30 absorb or self-decompose waste ozone in the ozone decomposing tank 30 to lower the ozone concentration (for example, about 0.01 PPM) or less to the environment. To be released into the natural environment.

The recovery tank 78 is divided into a gas-liquid separation chamber 86 provided with a partition 85 and hermetically closed, and an open treated water recovery chamber (opening chamber) 87 opened.
The liquid separated by gas-liquid separation in the above step, ie, the treated water,
After passing through 8, it is sent to the collection chamber 87 from the opening on the bottom side of the collection tank 78, collected and reused, or discharged into a natural environment such as a river.

The gas components separated in the gas-liquid separation chamber 86 are cooled by a refrigerator 90 and a heat exchanger (dehumidifier) 91 forming a refrigeration cycle, and the gas components are dehumidified.
The liquid level in the gas-liquid separation chamber 86 is detected by the liquid level detecting means 92. The liquid level detecting means 92 is, for example, a liquid level sensor provided with a float 93, and a detection signal from the liquid level detecting means 92 is sent to the treated water supply system 15,
The supply of the water to be treated is controlled.

On the other hand, the treated water supply system 15 supplies a plurality of, for example, three, treated water supply flow paths 15a,
15b, 15c.
Pressurizing pumps 17a, 17b, 17c are provided at a, 15b, 15c as pressurizing pump means for the water to be treated. Each of the pressurizing pumps 17a to 17c is formed by a vortex pump or a screw pump.
Ozone injection means 14a, 14b, 14c are respectively provided on the suction side of. As the ozone injection means 14a to 14c, those having the configuration shown in FIGS. 2A, 2B and 2C are used. The downstream sides of the pressurizing pumps 17a to 17c are joined and connected to the lower part of the upstream ozone reaction tank 71 so that the water to be treated is supplied to the outer diameter side of the scroll flow path 74.

Of the ozone injection means provided on the upstream side (suction side) of the pressure pumps 17a, 17b, 17c, for example, two ozone injection means 14a, 14b are provided with ozone generated by the ozone generator 12 (actually, ozone generation). and O ₂ or a gas mixture) is the flow rate control valve of the air 95a, is adapted to be supplied via 95b, the remaining ozone injection means 1
The recovered ozone generated in the recovery tank 78 is supplied to the recovery tank 4 c via a recovery pipe 96. The recovery pipe 96 is provided with a flow rate regulating valve 97, while the gas component in the recovery tank 78 is dehumidified by the heat exchanger 91 so that the recovery pipe 96 is not blocked by dew condensation or the like, and the gas component is dried. .

A flow control valve 98 for the water to be treated is provided upstream of the pressurizing pump 17c in the water supply flow path 15c to which the recovered ozone is supplied. Reference numeral 98 is operated by a detection signal from the liquid level detection means 92 in the recovery tank 78, and is controlled to open and close the valve.

In the treated water supply system 15, an ultrasonic vibration device (not shown) for atomizing the treated water into which ozone has been injected may be provided downstream of the ozone injecting means 14a and 14b. Good. This ultrasonic vibration device may be provided in the upstream ozone reaction tank 71 or the downstream ozone reaction tank 72 in addition to the water supply flow path into which ozone is injected.

Further, in the high-speed ozone reaction system, at least a part of the water to be treated into which ozone has been injected is guided to an ultrasonic vibrator outside the system, and the water to be treated is changed into a mist state. You may comprise so that it may be re-injected. However, the ultrasonic vibration device uses the pressure pump 14 constituting the pressure pump means to convert the water to be treated into which ozone has been injected into three.
It is not always necessary to pressurize the water to be treated to atg or more, preferably 5 atg or more while mixing. When the water to be treated is pressurized to 3 atg or more, preferably 5 atg, for example, 5 atg while mixing with the ozone, the ozone bubbles are mixed into the water to be treated and are crushed. There is no need to atomize the treated water. In a system in which the pressure of the water to be treated is increased from the atmospheric pressure to about 3 atg (0.4 MPa) by the pressurizing pump 17, the installation of the ultrasonic vibration device is effective.

In the high-speed ozone reaction system shown in FIG. 11, a plurality of treated water supply passages 15a, 15b, 15c are formed in the treated water supply system 15, and each supply passage 15
Since a large amount of water to be treated is introduced into the ozone reaction tank 7 of the ozone reaction treatment means 70,
1, 72, and can be subjected to an ozone reaction treatment.

Each supply passage 1 of the treated water supply system 15
5a to 15c are provided with ozone injection means 14a to 14c and pressurizing pumps 17a to 17c, respectively. The ozone-injected water is pressurized while being mixed by the pressurizing pumps 17a to 17c. It is mixed by the pressurizing pumps 17a to 17c to form fine bubbles, and the gas-liquid contact area increases, while being pressurized and crushed, dissolved in the water to be treated, and dissolved. The pressurizing conditions of the pressurizing pumps 17a to 17c may be higher than the atmospheric pressure. However, as shown in FIG. 3, if the pressure is higher than 0.4 MPa (3 atg), the ozone absorption rate becomes almost 100%. This is preferable because ozone is almost completely dissolved in the water to be treated. Pressurizing pump 17a
If the pressure is increased to about 0.6 MPa (5 atg) at ~ 17c,
Ozone is more preferable because it is mixed and absorbed in 100% of the water to be treated, crushed and dissolved.

The water to be treated pressurized by the pressurizing pumps 17a to 17c is supplied to a scroll flow path 74 below the upstream ozone reaction tank 71, and is guided spirally along the scroll flow path 77. The reaction distance can be increased, the oxidation reaction of the water to be treated is promoted, and organic matter decomposition and the like can be performed efficiently and efficiently.

The water to be treated, which rises while being spirally guided in the scroll flow path 74, subsequently passes through the inside of the filler 75 to increase the gas-liquid contact area. When the inside of the upstream-stage ozone reaction tank 71 is maintained at a gauge pressure of 3 atg or more, preferably 5 atg or more, for example, 5 atg, since the undissolved ozone does not exist in the water to be treated, the filler 75 is unnecessary.

While the to-be-treated water rises in the upstream-stage ozone reaction tank 71, the ozone oxidation reaction by dissolved ozone is promoted, and the treatment of the to-be-treated water with the decomposition of organic substances (polymerization to lower molecular weight) is performed. The water to be treated that has risen in the upstream ozone reaction tank 71 is supplied to the lower part of the downstream ozone reaction tank 72 from the top through an inverted U-shaped connection pipe 73. The water to be treated passing through the connection pipe 73 becomes a gas-liquid two-phase flow in a pressurized state of not less than atmospheric pressure and not more than 3 atg, and is led to the scroll flow path 78 of the downstream ozone reaction tank 72.

While the scroll channel 78 is spirally guided, an ozone reaction process is performed. On the other hand, the downstream ozone reaction tank 72 also functions as a gas-liquid separation tank, and waste ozone contained in the water to be treated is removed. The gas component of O ₂ generated by the autolysis is separated from the water to be treated. The gas component separated into gas and liquid is then led to a waste ozone decomposition tank 30 through a waste ozone discharge pipe 81, where the waste ozone is adsorbed by an ozone adsorbent or self-decomposes to an ozone concentration suitable for the environment. It is released into the atmosphere as follows.

On the other hand, the liquid component gas-liquid separated in the downstream-stage ozone reaction tank 72 becomes treated water, is decompressed through the pressure regulating valve 24 as a decompression means, and is collected in the collection tank 78.
The treated water sent to the recovery tank 78 is removed of gas components in the gas-liquid separation chamber 86, and is guided to the recovery chamber 87. Collection room 8
The treated water guided to 7 is reused or discharged into a natural environment such as a river.

The gas component separated in the gas-liquid separation chamber 86 of the recovery tank 78 is dehumidified in a heat exchanger 91 to be dried, and this dry gas component is collected in the recovery ozone pipe 9.
6, the ozone injecting means 14c of the treated water supply system 15
Supplied to The valve operation of the flow rate control valve 97 for the collected ozone and the flow rate control valve 98 for the water to be treated is controlled by a detection signal from the liquid level detection means 92.

As described above, the water-to-be-treated supply system 15 is provided with the pressurizing pumps 17a to 17c and pressurizes the water-to-be-treated with ozone while mixing it to crush the water-to-be-treated and mix the ozone into the water-to-be-treated. Promotes ozone absorption and ozone dissolution in the water to be treated. The water to be treated in which ozone has been dissolved is supplied to the upstream ozone reaction tank 71 of the ozone reaction processing means 70.
Is caused to undergo an ozone reaction while passing in a pressurized state, thereby increasing the ozone reaction rate and shortening the ozone reaction time.

The water subjected to the ozone reaction in the upstream ozone reaction tank 71 is guided to the downstream ozone reaction tank 72 through an inverted U-shaped connection pipe 73, and the ozone reaction of the water to be treated further proceeds. Can be The downstream-stage ozone reaction tank 72 also functions as a gas-liquid separation tank, and the liquid component gas-liquid separated in the ozone reaction tank 72 is collected in the recovery tank 78 as treated water.

The gas components separated in the downstream-stage ozone reaction tank 72 are guided to a waste ozone decomposition tank 30, where the ozone adsorbent in the waste ozone decomposition tank 30 has an ozone adsorbing action and self-decomposes waste ozone. By the action, the ozone concentration becomes lower than or equal to the environment and is released into the atmosphere.

In practice, when the upstream ozone reaction tank 71 and the downstream ozone reaction tank 72 are pressurized and maintained in a pressurized state, the gas components to be separated into gas and liquid in the downstream ozone reaction tank 72 contain almost waste ozone. It was found that the waste ozone concentration was infinitely equal to zero. Therefore, the waste ozonolysis tank 30 only functions as a maintenance ozonolysis tank,
Even if the gas components from the downstream-stage ozone reaction tank 72 are directly discharged into the atmosphere, there is no problem in terms of the environment or measures against active oxygen.

In the embodiment shown in FIG. 11,
Although an example in which one upstream ozone reaction tank 71 is installed is shown,
It is not necessarily limited to this, and a plurality of upstream stage ozone reaction tanks 71 may be arranged in series or in parallel.

Further, the respective components of the high-speed ozone reaction system disclosed in the first to tenth embodiments of the present invention can be appropriately selected and combined. This high-speed ozone reaction system can be applied to medical and industrial cleaning equipment in addition to river water, rainwater, and water and wastewater treatment.

[0138]

As described above, in the high-speed ozone reaction system according to the present invention, the ozone injected into the water to be treated is pressurized while being mixed by the pressurizing pump. The dissolution of air bubbles into the water to be treated is promoted, and the efficiency of ozone absorption into the water to be treated can be improved. In the ozone reaction tank, the water to be treated is maintained in a pressurized state and subjected to the ozone reaction treatment. The efficiency of the ozone reaction is increased by increasing the efficiency, the ozone reaction time can be shortened, and the size and size of the ozone reaction tank can be reduced, and the entire system can be reduced in size.

Injection of ozone into the water to be treated is performed on the suction side of the pressurized pump, and low-pressure injection becomes possible, so that ozone can be easily and easily injected. And it is not necessary to accommodate a diffuser, so the ozone reaction tank can be simplified and simplified.
Maintenance becomes easy.

Further, in the ozone reaction tank, the water to be treated is subjected to an ozone reaction treatment in a pressurized state, so that the solubility of ozone in the water to be treated is improved and the amount of dissolved ozone is increased. Promotes the ozone oxidation reaction of water and efficiently and efficiently decomposes, deodorizes, and decolorizes organic substances contained in the water to be treated, while suppressing the generation of waste ozone and adapting it to the natural environment. An ozone reaction system can be provided.

In the high-speed ozone reaction system according to the first aspect, ozone is injected into the water to be treated on the upstream side of the pressure pump, so that the ozone can be injected easily and easily at a low pressure. Since the pressurized water to be treated is subjected to the ozone reaction while maintaining the pressurized state in the ozone reaction tank, ozone absorption and ozone solubility in the water to be treated are improved, and the ozone oxidation reaction of the water to be treated is improved. The ozone reaction time can be shortened by enhancing the efficiency of the ozone reaction, and the ozone reaction tank can be reduced in size and size.

In the high-speed ozone reaction system according to the second aspect, the treated water subjected to the reaction treatment in the ozone reaction tank is decompressed by the decompression means and guided to the gas-liquid separation tank, where the water is separated in the gas-liquid separation tank. There is no problem because the discharged gas component is guided to the ozone decomposition tank and subjected to waste ozone treatment and then released in conformity with the environment.On the other hand, the treated water is separated into gas and liquid and the gas component is removed and released. There is no problem, there is no problem in environmental measures, and the system is extremely environmentally friendly.

In the high-speed ozone reaction system according to the third aspect, a waste ozone suppression control system is provided to regulate and control gas components separated into gas and liquid in the gas-liquid separation tank so as to suppress waste ozone. It is an eco-friendly system that can be suppressed and almost zero.

In the high-speed ozone reaction system according to claims 4 and 5, the ozone concentration of ozone injected into the water to be treated can be increased, and the ozone oxidation reaction is promoted by improving the ozone solubility of the water to be treated. Can be done.

In the high-speed ozone reaction system according to the sixth aspect, since a gas injection pipe or a diffuser pipe is provided on the upstream side of the pressurizing pump in the water supply system, low-pressure ozone can be injected, and ozone injection is simple and easy. Becomes Also, since ozone is made into fine bubbles and injected by the air diffuser, the gas-liquid contact area can be increased.

In the high-speed ozone reaction system according to the seventh aspect, since ozone is injected by the injector provided in the branch channel having a constant flow rate, stable ozone injection can be performed regardless of the flow rate of the water to be treated. it can.

In the high-speed ozone reaction system according to the eighth aspect, since the water to be treated into which ozone is injected is pressurized to at least 3 atg by the pressure pump, the ozone is mixed with the water to be treated by the pressure pump to form fine bubbles. In addition, the gas-liquid contact area can be increased, and the ozone bubbles are crushed by the pressurization and dissolved in the water to be treated, so that there is no undissolved ozone, which can contribute to an increase in ozone reaction efficiency.

When the liquid to be treated for ozone injection is pressurized to at least 5 atg by a pressure pump as in the high-speed ozone reaction system according to claim 8, the ozone bubbles are crushed and completely dissolved in the water to be treated. The ozone reaction efficiency can be further improved.

In the high-speed ozone reaction system according to the tenth aspect, since the pH value of the water to be treated is controlled to be 8 or less by the chemical liquid injection means, the ozone oxidation reaction of the water to be treated can be further promoted.

In the high-speed ozone reaction system according to the eleventh aspect, the ozone reaction tank is connected to the waste ozone decomposition tank, and the gas component of the water to be treated separated in the ozone reaction tank is decomposed in the waste ozone decomposition tank. Since it is processed to a required ozone concentration or less and released into the atmosphere, it is an environmentally friendly system.

In the high-speed ozone reaction system according to the twelfth aspect, since the spiral flow path is formed in the ozone reaction tank by inserting the torsion plate in the sealed cylinder in the axial direction, the ozone reaction distance is increased. While promoting the ozone oxidation reaction, the degree of freedom of installation of the cylindrical body is increased, and the cylinder can be freely installed vertically or horizontally.

In the high-speed ozone reaction system according to the thirteenth aspect, since the water to be treated is stirred by installing the stirrer in the ozone reaction tank 10, the gas-liquid contact area can be increased and the ozone reaction efficiency can be improved. it can.

In the high-speed ozone reaction system according to the fourteenth aspect, a bypass flow path that bypasses the pressure pump is provided in the supply flow path of the water supply system, and the water supply pump is installed in the bypass flow path. It is possible to cope with an increase in the flow rate of the treated water.

In the high-speed ozone reaction system according to the fifteenth aspect, the feedback flow path is branched from the discharge side of the pressurized pump of the water supply system, and this feedback flow path is connected to the suction side of the pressurized pump. The flow rate of the water to be treated flowing through the pressurizing pump is made constant, and the pump discharge pressure can be maintained at a required value regardless of the flow rate of the water to be treated.

In the high-speed ozone reaction system according to claim 16, a mixer is provided on the discharge side of the pressure pump to stir the water to be treated, or an ultrasonic vibrator is provided to atomize the water to be treated. Since the gas-liquid contact area is increased, the ozone reaction efficiency can be increased.

In the high-speed ozone reaction system according to the seventeenth aspect, since a plurality of ozone reaction tanks are juxtaposed, it is possible to cope with a change in the flow rate of the water to be treated. Can be laid.

In the high-speed ozone reaction system according to the eighteenth aspect, a plurality of ozone reaction tanks are arranged in multiple stages in series, and the internal pressure is reduced in each ozone reaction tank toward the downstream side. Ozone solubility under pressure conditions is improved, and the oxidation reaction of the water to be treated can be promoted.

In the high-speed ozone reaction system according to the nineteenth aspect, since the treated water drainage system and the backflow means and the solid separation / removal means are provided, the backflow work can be performed, while the solid content contained in the treated water can be performed. Separation and removal can be achieved.

In the high-speed ozone reaction system according to the twentieth aspect, since the scroll flow path is provided below the ozone reaction tank of the ozone reaction processing means, the ozone reaction distance of the water to be treated in the ozone reaction tank can be increased. And the ozone reaction efficiency can be improved.

In the high-speed ozone reaction system according to the twenty-first aspect, the upstream ozone reaction tank and the downstream ozone reaction tank are connected by an inverted U-shaped connection pipe, and the downstream ozone reaction tank removes water to be treated. Since it is connected as a gas-liquid separation tank for liquid separation, the ozone reaction distance of the water to be treated can be made sufficiently long, and the ozone reaction efficiency can be improved.

In the high-speed ozone reaction system according to claim 22, the downstream ozone reaction tank is connected to the recovery tank via the depressurizing means. Can be reused or released into natural environmental systems.

In the high-speed ozone reaction system according to the twenty-third aspect, since the downstream ozone reaction tank is released into the atmosphere via the waste ozone decomposition tank, the water to be treated separated in the downstream ozone reaction tank by gas-liquid separation. Can be decomposed in a waste ozonolysis tank and released in a state that can be sufficiently adapted to the environment.

In the high-speed ozone reaction system according to the twenty-fourth aspect, since the pressure supply pump and the ozone injection means are respectively provided in the plurality of supply channels of the water-to-be-treated, the flow rate of the water to be treated is large. Can also be accommodated.

[Brief description of the drawings]

FIG. 1 is a configuration diagram systematically showing a first embodiment of a high-speed ozone reaction system according to the present invention.

2 (A), 2 (B) and 2 (C) are views showing respective embodiments of an ozone injection means provided in the high-speed ozone reaction system of FIG. 1;

FIG. 3 is a diagram showing the efficiency of absorbing ozone into water to be treated (fresh water).

FIG. 4 is a view showing an ozone reaction process of the high-speed ozone reaction system according to the present invention.

FIG. 5 is a configuration diagram systematically showing a second embodiment of the high-speed ozone reaction system according to the present invention.

FIG. 6 is a configuration diagram systematically showing a third embodiment of the high-speed ozone reaction system according to the present invention.

FIG. 7 is a configuration diagram systematically showing a fourth embodiment of the high-speed ozone reaction system according to the present invention.

FIG. 8 is a configuration diagram of a treated water supply system, which systematically shows a fifth embodiment of the high-speed ozone reaction system according to the present invention.

FIG. 9 is a configuration diagram of a treated water supply system, which systematically shows a sixth embodiment of the high-speed ozone reaction system according to the present invention.

FIG. 10 shows a seventh embodiment of the high-speed ozone reaction system according to the present invention.
FIG. 1 is a configuration diagram systematically showing an embodiment.

FIG. 11 shows the eighth embodiment of the high-speed ozone reaction system according to the present invention.
FIG. 1 is a simplified configuration diagram systematically showing an embodiment.

FIG. 12 is a ninth embodiment of the high-speed ozone reaction system according to the present invention.
FIG. 1 is a simplified configuration diagram systematically showing an embodiment.

FIG. 13 is a first view of a high-speed ozone reaction system according to the present invention.
FIG. 1 is a configuration diagram systematically showing a zero embodiment.

FIG. 14 is a configuration diagram showing a conventional ozone treatment system.

[Explanation of symbols]

10, 10a, 10b, 10c Ozone reaction tank (ozone reaction processing means) 11 Pressure control means 12 Ozone generator (ozone generation means) 13 Flow rate regulator 14 Ozone injection means 15 Treated water supply system 15a Main flow path (treated water) (Supply flow path) 15b branch flow path 16 controller 17 pressurizing pump (pressurizing pump means) 18 gas injection pipe 19 diffuser pipe 20 injector 22 manometer 23 pressure regulator 24 pressure regulating valve (pressure reducing means) 25 gas-liquid separation tank 26 Flowing water pipe 27 Pipe 29 Blower 30 Waste ozone decomposition tank (Ozone decomposition tank for security) 31 Ozone concentration meter 32 Pipe 33 Waste ozone suppression control system 34 Chemical liquid injection means 35 Chemical liquid tank 36 Chemical liquid injection pipe 37 Pump 39 Release pipe 40 Security concentration Total 41 Control device 43 Ozone concentration meter 45 Ozone reaction tank (ozone reaction processing means) 46 tubes Body (pressure vessel) 47 torsion plate 50 stirrer 51 motor 52 stirring fan 55 water supply pump 56 bypass flow path 58 feedback flow path 59 flow valve 60 flow meter 61 treated water discharge system (processed water recovery system) 62 backwash loop 64 mixer 65a-65c Ozone reaction tank 67a, 67b Pressure regulating valve 70 Ozone reaction processing means 71 Upstream ozone reaction tank 72 Downstream ozone reaction tank 73 Connection piping 74, 77 Scroll flow path 75 Filler 76 Tapered header 78 Collection tank (release tank) ) 79 Liquid level detecting means 80 Control valve 81 Waste ozone discharge pipe 82 Ozone concentration meter 85 Partition 86 Gas-liquid separation chamber 87 Treated water recovery chamber 88 Morigashi 90 Refrigerator 91 Heat exchanger (dehumidifier) 92 Liquid level detecting means 93 Float 95a, 95b, 97, 98 Flow control valve 96 Recovery piping

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Katsuya Yamashita 2-4-4, Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture Inside Keihin Works, Toshiba Corporation (72) Hideo Akahori 2--4, Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Address: Toshiba Keihin Works Co., Ltd. (72) Inventor Takanobu Watanabe 2-4, Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture Toshiba Keihin Works Co., Ltd.

Claims (24)

[Claims] 1. A treated water supply system having a pressurized pump for supplying treated water, an ozone generating means for generating ozone having a required concentration, and an ozone generated upstream of a pressurized pump of the treated water supply system. Ozone injecting means for injecting the water to be treated, ozone reaction processing means for subjecting the supplied water to be subjected to an ozone reaction while maintaining a pressurized state in an ozone reaction tank, and reducing the pressure of the ozone-reacted treated water to atmospheric pressure. A high-speed ozone reaction system, comprising: a pressure reducing means; and discharging the treated water through the pressure reducing means. 2. A gas-liquid separation tank is provided downstream of the pressure reducing means,
2. The high-speed ozone reaction system according to claim 1, wherein the gas component separated in the gas-liquid separation tank is guided to an ozonolysis tank, and the liquid component separated in the gas-liquid separation tank is discharged. 3. An ozone concentration meter is provided in a gas-liquid separation tank, and waste ozone is adjusted and controlled by a monitor detection signal detected by the ozone concentration meter to control ozone supply to an ozone injection means. 3. The high-speed ozone reaction system according to claim 2, further comprising a suppression control system. 4. The high-speed ozone reaction system according to claim 1, wherein the ozone generating means is a high-concentration ozone generator that generates ozone at a concentration of 200 g / Nm ³ or 300 g / Nm ³ to 350 g / Nm ³ . Wherein the ozone generating means, 20 g / Nm ³ grade conventional concentration or tens g / Nm ³ class to hundred and several tens of g / N
Fast ozone reaction system of claim 1, wherein an ozone generator for generating an m ³ Grade concentration of ozone. 6. The ozone injection means is provided on the upstream side of the pressurizing pump, while the ozone injection means is a gas injection pipe inserted into a supply flow path of the treated water supply system or a dispersion pipe for generating fine bubbles. 2. The high-speed ozone reaction system according to claim 1, wherein the system comprises a trachea. 7. The high-speed ozone according to claim 1, wherein the main flow path for guiding the water to be treated and the branch flow path for flowing a required constant flow rate are combined, and the ozone injection means is constituted by an injector provided in the branch flow path. Reaction system. 8. The pressurizing pump reduces the bubbles of ozone-injected water to be treated to at least 3 atg (0.4 Mg).
2. The high-speed ozone reaction system according to claim 1, wherein the pressure is adjusted to a predetermined pressure of at least 3 atg by a pressure adjusting means. 9. The pressurizing pump pressurizes the ozone-injected water to be treated with at least 5 atg (0.6 MPa), and adjusts and maintains the inside of the ozone reaction tank to a predetermined pressure of at least 5 atg by pressure regulating means. 2. The high-speed ozone reaction system according to 1. 10. The ozone reaction treatment means includes a chemical liquid injection means for adjusting and controlling the pH value of the water to be treated in the ozone reaction tank to 8 or less. High-speed ozone reaction system injected into the tank. 11. The ozone reaction tank is connected to a waste ozone decomposition tank, and gas components of the water to be treated, which have been separated into gas and liquid in the ozone reaction tank, are discharged into the atmosphere via the waste ozone decomposition tank. High-speed ozone reaction system. 12. The high-speed ozone reaction system according to claim 1, wherein the ozone reaction tank has a spiral flow path formed therein by inserting a spiral torsion plate in an axial direction inside a closed cylinder. 13. The high-speed ozone reaction system according to claim 1, wherein the ozone reaction tank has at least one stirrer therein. 14. The high-speed ozone according to claim 1, wherein the treated water supply system is provided with a bypass passage for bypassing the pressure pump in the treated water supply passage, and a water supply pump provided in the bypass passage. Reaction system. 15. The high-speed ozone reaction system according to claim 1, wherein the to-be-treated water supply system branches a feedback flow path from a discharge side of the pressure pump, and the feedback flow path is connected to a suction side of the pressure pump. 16. The high-speed ozone reaction system according to claim 1, wherein a mixer or an ultrasonic vibrator is provided downstream of the pressurizing pump in the water supply system. 17. The high-speed ozone reaction system according to claim 1, wherein the ozone reaction processing means includes a plurality of ozone reaction tanks arranged in parallel with each other. 18. The ozone reaction processing means includes a plurality of ozone reaction tanks connected in multiple stages in a series, and each ozone reaction tank is set so as to gradually reduce the internal pressure from the upstream side to the downstream side. The high-speed ozone reaction system according to claim 1. 19. A treated water drainage system for discharging treated water subjected to an ozone reaction treatment in an ozone reaction tank, a pressure reducing means for reducing the pressure of the treated water to the treated water drainage system, and a reverse pressure juxtaposed to the pressure reducing means. 2. The high-speed ozone reaction system according to claim 1, further comprising a washing means and a solid content separation / removal means for removing a solid content from the treated water. 20. A treated water supply system having a pressurized pump for supplying treated water, an ozone generating means for generating ozone having a required concentration, and an ozone generated upstream of the pressurized pump of the treated water supply system. Ozone injecting means for injecting water to be supplied to the side, ozone reaction processing means for subjecting water to be treated supplied from the water supply system to an ozone reaction while maintaining a pressurized state in an ozone reaction tank, and treated water subjected to the ozone reaction Pressure reducing means for reducing the pressure and discharging the water, wherein the ozone reaction processing means forms a scroll flow path in the lower part of the ozone reaction tank, and guides the water to be treated through the scroll flow path. High-speed ozone reaction system. 21. The ozone reaction processing means has an upstream ozone reaction tank and a downstream ozone reaction tank connected to the upstream ozone reaction tank via a connecting pipe, and the downstream ozone reaction tank is a processing target ozone reaction tank. 21. The high-speed ozone reaction system according to claim 20, which also serves as a gas-liquid separation tank for separating water from gas and liquid. 22. The downstream-stage ozone reaction tank is provided with a connection pipe for discharging treated water separated into gas and liquid to a recovery tank,
22. The high-speed ozone reaction system according to claim 21, further comprising a pressure reducing means for reducing the pressure of the treated water to atmospheric pressure in the connection pipe. 23. The downstream ozone reaction tank is connected to a waste ozone decomposition tank for recovering gaseous and liquid separated gas components, and the gas components are discharged into the atmosphere via the waste ozone decomposition tank. High-speed ozone reaction system. 24. The treated water supply system has a plurality of treated water supply flow paths, and each of the treated water flow paths is provided with a pressurizing pump and an ozone injection means on the pressure pump suction side. High-speed ozone reaction system.