KR101443798B1 - Manufacturing Method and Apparatus for Dissolved Oxygen Water used Seawater - Google Patents

Abstract

The present invention relates to an apparatus and method for preparing dissolved oxygen water using seawater, the apparaus including: a storage tank (10); an ozone generator (20); a mixing pump (30) mixing treated water and ozone; an ozone sterlizing unit (40) including a ultrasonic wave generator and an ozone sterlizer and sterlizing the treating target water discharged through the mixing pump (30); a dissolved oxygen water preparing unit (50) preparing dissolved oxygen water by supplying the treating target water sterlized in the ozone sterlizing unit (40) into a spiral tube followed by repeatedly passing the treating target water through a plurality of compression nozzles and permanent magnet; a reaction filter unit (60) filtering bacteria and pollutants remaining in the dissolved oxygen water prepared; a detention tank (70) reacting remaining ozone to be reduced to dissolved oxygen; an activated charcoal filter (80) decompoing remaining ozone contained in the dissolved oxygen water passing through the detection tank (70); a storage tub (90) storing dthe dissolved oxygen water passing through the activated charcoal filter (70); a precision filtration unit (100) removing micro foreign substances from the dissolved oxygen water selectively supplied by a pump (P1) from the storage tub (90); and a reverse osmosis concentration filter (110) passing the dissoved oxygen water, which has passed the precision filtration unit (100), into a reverse osmosis concentration membrane with a high pressure by a high-pressure pump (P2) to thereby separate and discharge dissolved oxygen water and saline solution. Thus, in the present invention, dissolved oxygen water, having a predetermied amount of minerals and a high dissolved oxygen concetration, may be produced using sea water according to the above constitution.

Description

Technical Field [0001] The present invention relates to a method and apparatus for producing dissolved oxygen water using seawater,

The present invention relates to an apparatus for producing dissolved oxygen water using seawater and, more particularly, to a method and apparatus for producing dissolved oxygen water using seawater, Manufacturing apparatus and method thereof.

Dissolved oxygenated water using seawater contains a large amount of sodium, potassium, and natural minerals such as calcium and magnesium. It has high oxygen solubility, so if you drink it as a functional drink, it will have liver function, diuretic action, .

As a method for making dissolved oxygen water using seawater as described above, Korean Patent Application No. 2011-81924 (a method of producing ocean deep oxygen water using deep sea water) is known.

As shown in FIG. 1, the method of manufacturing a magnetic ozone generator according to the present invention comprises the steps of: injecting deep ocean water or seawater raw water into the ozone generating unit 210 by magnetic force of a first magnetic treatment reactor 200 using a permanent magnet, After the oxidized substance is oxidized and coagulated, the coagulated material is removed by the first filter 220, the magnetic force of the second magnetic treatment reactor 230 is actuated again, and the generated coagulated material is generated in the second ozone generator 240 Is injected into the activated carbon catalyst layer, and then passed through the activated carbon catalyst layer several times and filtered again.

However, in the production method of the patent document, since the water to be treated and ozone are difficult to mix quickly and efficiently, and the contaminants in the raw water are filtered using only the activated carbon catalyst layer, bacteria and fine foreign matters remain in the dissolved oxygen water, There is a problem that it can remain in the raw water without being dissolved.

DISCLOSURE Technical Problem The present invention is conceived to solve the problems of the conventional drinking water producing apparatus and method as described above. In producing dissolved oxygen water having high oxygen dissolution degree by using seawater, And a method for manufacturing dissolved oxygen water using seawater capable of producing dissolved oxygen water having high oxygen dissolution degree by removing ozone, and a method thereof.

It is an object of the present invention to provide a dissolved oxygen water producing apparatus comprising: a storage tank in which a predetermined amount of seawater is stored as to-be-treated water; An ozone generator for generating ozone; A mixing pump for sucking the water to be treated stored in the storage tank and the ozone generated in the ozone generator and mixing them together; An ozone sterilizer provided with an ultrasonic generator and an ozone sterilizer to sterilize the water to be treated discharged through the mixing pump; A dissolved oxygen generator for supplying the sterilized water to be sterilized in the ozone sterilizer into the spiral duct and then generating dissolved oxygen by repeatedly passing a plurality of compression nozzles and permanent magnets; A reaction filter for passing the dissolved oxygen water produced through the dissolved oxygen water generator through a filter having a multi-layered structure to filter bacteria and contaminants remaining in the dissolved oxygen water; A storage tank for allowing the dissolved oxygen passing through the reaction filter to stay for a predetermined time and allowing ozone remaining in the dissolved oxygen water to be reduced to dissolved oxygen; An activated carbon filter for decomposing and filtering the residual ozone in the dissolved oxygen water passing through the storage tank; A storage tank for storing dissolved oxygen that has passed through the activated carbon filter; A microfilter for selectively removing dissolved microfluid from the reservoir; And a reverse osmosis membrane filter configured to pass dissolved oxygen water having passed through the microfilter through a reverse osmosis membrane at a high pressure by a high pressure pump to separate and discharge dissolved oxygen water and saline solution.

The ozone generator may further include an ozone alarm for limiting the operation of the ozone generator and generating a warning sound when the ozone amount exceeds the reference value or is lower than the reference value or when the ozone leaks.

Preferably, the reaction filter, the storage tank, and the activated carbon filter are provided with an ozone destructor for decomposing ozone remaining therein, and a backwash device for backwashing the ozone and discharging the ozone back to the outside.

The reverse osmosis membrane filter may further include an electrodialyzer disposed downstream of the reverse osmosis membrane filter to regulate mineral content in the water separated and discharged by dissolved oxygen.

Meanwhile, a method for producing dissolved oxygen using seawater includes: a to-be-treated water mixing step for mixing and discharging the for-treatment water stored in the storage tank and the ozone generated in the ozone generator using a mixing pump; A sterilizing step of sterilizing the for-treatment water using ozone and ultrasonic waves; A dissolved oxygen water producing step of supplying the sterilized untreated water into a spiral duct of a dissolved oxygen water producing machine 0) and then repeatedly passing a plurality of compression nozzles and permanent magnets to produce dissolved oxygen water; A primary filtration step of passing the dissolved oxygen water produced in the dissolved oxygen water production step through a reaction filter composed of a filter having a multilayered structure to filter residual bacteria and contaminants; A dissolved oxygen water storage step of storing the dissolved primary oxygen-filtered primary dissolved oxygen in the storage tank for a certain period of time to cause the residual ozone to be reduced to dissolved oxygen; A secondary filtration step of decomposing and filtering the ozone remaining in the dissolved oxygen water reacted for a predetermined time in the dissolved oxygen water storage step using an activated carbon filter; A dissolved oxygen storage step of storing the dissolved dissolved oxygen in the storage tank through the secondary filtration step; A tertiary filtration step of supplying dissolved oxygen water stored in the storage tank to a microfilter through a pump to remove fine foreign matter; And the dissolved oxygen water having passed through the tertiary filtration step is passed through a reverse osmosis membrane filter through a high-pressure pump to separate and discharge the dissolved oxygen water and the saline solution.

In this case, the ozone destruction step of decomposing ozone remaining in each of the first filtering step, the dissolved oxygen water storing step and the second filtering step; And a back washing step of backwashing the destroyed ozone and discharging it to the outside.

In addition, it is preferable that the step of separating and discharging dissolved oxygen and saline water further comprises a step of adjusting a mineral content of the water separated and discharged as dissolved oxygen using an electrodialysis unit.

In the present invention, since ozone is mixed with sea water and ozone using a mixing pump, the ozone is supersaturated in the water to be treated, sterilized, mixed with a number of impacts while flowing along the spiral tube in the dissolved oxygen generator, And repeatedly passes through the water to be treated for compression and diffusion to produce dissolved oxygen having a high oxygen dissolution degree.

In addition, ozone and fine foreign substances remaining in the dissolved oxygen water are removed by sequentially passing through the reaction filter, the activated carbon filter, the fine filter, and the reverse osmosis membrane filter composed of the multi-layered filter, and finally the mineral content in the dissolved oxygen is controlled, There is an effect that the dissolved oxygen is produced as much as possible, and as a result, the rich mineral component of the seawater provides a dissolved oxygen amount remaining at an appropriate value.

1 is a view showing an example of a conventional dissolved oxygen-water producing device,
FIG. 2 is a view showing an example of a dissolved oxygen water producing apparatus using seawater according to the present invention,
3 is a perspective view showing an example of a dissolved oxygen generator according to the present invention,
FIG. 4 is a process diagram showing a method for producing dissolved oxygen water using seawater according to the present invention,
5 is a process diagram showing an example of a detailed process of the primary filtration step, the treated water storage step, and the secondary filtration step according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[0001] The present invention relates to an apparatus and method for self-feeding drinking water and engine cooling water used in a ship using seawater in a ship, The ozone generator 10, the ozone generator 20, the mixing pump 30, the ozone sterilizer 40, the dissolved oxygen generator 50, the reaction filter 60, the storage tank 70, the activated carbon filter 80, 90, a precision filter 100 and a reverse osmosis membrane filter 110.

The storage tank 10 is a tank in which deep ocean water or seawater is stored as to-be-treated water, and a plurality of storage tanks 10 are prepared and water to be treated stored for a predetermined period is used.

The ozone generator 20 is a device for generating a large amount of ozone. The ozone generator 20 can be roughly classified into a chemical method, an ultraviolet ray method, a plasma method, a radiation method, and a silent discharge method.

Among the various methods of generating ozone, the ozone generator 20 using the silent discharge method, which is easiest to generate a large amount of ozone, is used. Sterilization of air, disinfection, deodorization and so on.

At this time, the ozone generator 20 according to the present invention is provided with a flow path so that the ozone generator 20 is connected to the inlet side and the outlet side flow paths of a mixing pump 30 to be described later, The ozone is introduced into the mixing pump 30 through the inlet-side flow path before the sea water is introduced into the mixing pump 30, By mixing and mixing the ozone in the pump 30 and supplying ozone again in the course of discharging the untreated water mixed with the ozone through the outlet side flow path, mixing efficiency of the water to be treated and ozone is improved, The ozone becomes supersaturated.

On the other hand, the ozone generator 20 generating ozone by the silent discharge method is widely used, and a detailed description thereof will be omitted.

In addition, when the amount of ozone generated by the ozone generator 20 exceeds the set reference value or is lower than the reference value or when the ozone leaks, the operation of the ozone generator 20 is arbitrarily stopped to prevent excessive ozone generation, It is preferable that the ozone detector 21 is also provided.

The mixing pump 30 has an impeller (not shown) rotatably operated therein. The mixing pump 30 is provided with an inlet-side flow path and an outlet-side flow path, respectively. The inlet- (10) to suck seawater stored in the storage tank (10).

In the mixed pump 30, sea water is sucked into the mixing pump 30 through the inlet-side flow path and is mixed at a high speed by the impeller inside, so that a large number of vortices are formed and the for-treatment water and ozone are mixed. The ozone generated in the ozone generator 20 is connected to the inlet-side flow path to supply ozone.

When the water to be treated and ozone are mixed in the mixing pump 30 and then the for-treatment water is discharged through the outlet-side flow path, the ozone is mixed again in the for-treatment water and mixed so that ozone is supersaturated The ozone generator 20 is configured to be connected to the outlet-side flow path.

The ozone sterilizing apparatus 40 is an apparatus for sterilizing the water to be treated, which is treated to make the ozone supersaturated through the mixing pump 30, by using ozone. As shown in FIG. 2, And the water to be treated is supplied to the lower part of the water tank to be discharged to the upper part.

An ozone sterilizer (not shown) for sterilizing the water to be treated by using ozone is installed in the inner lower part of the water tank, and the water to be treated flowing into the lower part of the water tank is passed through the ozone sterilizer and then discharged through the upper flow path.

In addition, an ultrasonic generator (not shown) and a magnetic force generator (not shown) are installed before the ozone sterilizer so that ultrasonic waves and magnetic force are applied to increase the sterilizing effect by ozone.

3, the dissolved oxygen tanks 50 are provided with a spiral tube 51 in a water tank of a predetermined size having a vertical length, sterilized water is supplied to the upper portion of the spiral tube 51, The water to be treated passed through the spiral tube 51 is directed upward from the lower part of the water tank to the upper end of the permanent magnet 52 and the compression nozzle 53 in this order, whereby the ozone is more actively reduced by the dissolved oxygen as the water to be treated is repeatedly compressed and diffused. As a result, the upper part of the water tank is discharged through the pipe The dissolved water of which most of the ozone is reduced by dissolved oxygen is discharged.

At this time, it is more preferable that the spiral tube 51 constitutes the spiral tube 51 so that the ozone of the water to be treated can be more easily reduced by oxygen.

The reaction filter 60 is a device for removing the contaminants and bacteria remaining in the dissolved oxygen water by filtering the dissolved oxygen water generated through the dissolved oxygen water generator 50 using a filter having a multi-layered structure.

As shown in FIG. 2, the reaction filter 60 is provided with a filter (not shown) of a multi-layered structure inside a reaction filtration tank (not shown) of a predetermined height, passes through the dissolved oxygen water generator 50, The dissolved oxygen is introduced into the upper portion of the reaction filtration tank, and then the filter is sequentially passed from the upper portion to the lower portion to constitute a flow path for discharging the dissolved oxygen water through the lower portion of the reaction filtration tank.

At this time, it is preferable that a filter having different standards is installed so that fine contaminants are gradually filtered from the upper part to the lower part, and a filter which can easily remove bacteria is used.

The storage tank 70 has a structure in which the dissolved oxygen discharged through the lower portion of the reaction filter 60 is allowed to react with ozone while staying therein for a predetermined time. This storage tank is also referred to as a reaction tank. Ozone remaining in the dissolved oxygen water in this storage tank 70 is dissolved And is reduced to oxygen.

At this time, the dissolved oxygen water flowing into the storage tank 70 flows into the lower part of the storage tank 70, and then the flow path is formed so as to be discharged to the upper part. Thus, the ozone is dissolved in the dissolved oxygen in the storage tank 70 .

The activated carbon filter 80 removes contaminants in the dissolved oxygen by using activated carbon such as charcoal. In the present invention, in the process of passing dissolved oxygen through micropores formed on activated carbon, Are decomposed together and filtered.

The storage tank 90 is a device for storing the pollutants in the dissolved oxygen water and the dissolved oxygen water from which the residual ozone has been removed through the activated carbon filter 80. Since a certain amount of dissolved oxygen is stored, Can be quickly provided to the user through the processes described below.

The microfilter 100 is configured such that the dissolved oxygen stored in the reservoir 80 is supplied to the inside by the pump P1 and then passes through the microfiltration filter (not shown) to remove the fine foreign substances remaining in the dissolved oxygen water Device.

The precision filter 100 is for removing fine particles suspended in a filter that can not be removed by the filter of the reaction filter 60. The precision filter 100 is generally made of a synthetic resin, A porous filter made of a metal or the like as a filter medium, and a diatomaceous earth filter formed on the surface of a diatomaceous earth filtration membrane.

In the present invention, any one of these commonly used fine filters 100 may be selected by one skilled in the art, or one or more of them may be used in combination.

Further, since the fine filter 100 is used to remove suspended particulate matter in advance of the reverse osmosis membrane filter 110 to be described later, the lifetime of the semipermeable membrane used for the reverse osmosis membrane is also prolonged.

The reverse osmosis membrane filter 110 is configured to separate dissolved oxygen and saline before discharging the dissolved oxygen that has passed through the fine filter 100. The reverse osmosis membrane has a reverse osmosis It is possible to filter even an ionic substance having a particle size of 1 nm or less.

Such a reverse osmosis membrane filter 110 is widely used for desalinating seawater or a device for mainly recycling wastewater.

In the present invention, dissolved oxygen is separated into dissolved oxygen and saline using a reverse osmosis membrane using the reverse osmosis membrane filter 110, wherein the dissolved oxygen water can be obtained by discharging the dissolved oxygen water upstream of the semipermeable membrane , And saline can be obtained by discharging downstream dissolved oxygen before passing through the semipermeable membrane.

On the other hand, the electrodialyzer 140 is further provided on the flow path separated and discharged by the dissolved oxygen water, so that the mineral content in the dissolved oxygen water is adjusted to a proper value, and the final dissolved oxygen water whose mineral content is controlled, It is kept sealed in a container for drinking.

Also, the dissolved oxygen water flowing into the reverse osmosis membrane filter 110 through the fine filter 100 passes through the reverse osmosis membrane filter 110 at a flow rate higher than a predetermined level by the high pressure pump P2, The dissolved oxygen can be discharged smoothly along the flow path.

In the present invention, in the present invention, the reaction filter 60, the storage tank 70, and the activated carbon filter 80 are provided with an ozone destructor 120 for decomposing ozone remaining in each of them, The reaction filter 60, the storage tank 70 and the activated carbon filter 80 are always kept at a constant level of cleanliness by using the ozone destructor 120 and the backwashing device 130. [ .

At this time, the backwashing device 130 may be set to be automatically backwashed at intervals of 10 to 12 hours, or may be performed such that the water to be treated is automatically carried out by a change in the flow rate through the reaction filter 60 and the activated carbon filter 80 , When the flow rate passing through the reaction filter 60 and the activated carbon filter 80 is suddenly slowed down, filtration performance of the water to be treated is deteriorated by a considerable amount of contaminants and ozone, It is preferable that the backwashing operation is automatically carried out in accordance with the timing, or that the backwashing is performed at a predetermined time period so that the contaminants and ozone remaining in the interior are discharged to the outside.

Hereinafter, dissolved oxygen is produced by the manufacturing method shown in FIG. 4 and FIG. 5 using the dissolved oxygen water producing apparatus using the above-described seawater. Hereinafter, the method will be described.

(1) mixing the water to be treated (S100)

This step is a step of mixing the ozone and the water to be treated generated in the ozone generator 20 with each other while sucking seawater (to-be-treated water) stored in the storage tank 10 by using the mixing pump 30, 30 and the ozone generator 20 are connected to each other so that the ozone generated by the ozone generator 20 is mixed into the for-treatment water, whereby the ozone in the for-treatment water is maintained in a supersaturated state And supplied to a sterilization step (S200) described later.

(2) Sterilization step (S200)

In this step, sterilizing power of ozone generated by the ozone sterilizer 40 and ultrasonic vibration generated in the ultrasonic generator are sterilized by mixing the water to be treated mixed with ozone in a supersaturated state in the for-treatment water mixing step (S100) to be.

(3) Dissolved Oxygen Water Production Step (S300)

In this step, the sterilized water to be treated is supplied into the spiral tube 51 of the dissolved oxygen water generator 50, the water to be treated is collided with the spiral tube 51, and the plurality of permanent magnets 52, (53) in this order, thereby repeating the compression and reducing ozone in the for-treatment water to dissolved oxygen, thereby converting the water to be treated into dissolved oxygen.

The thus-prepared dissolved oxygen water is not suitable for drinking directly due to minute foreign matter, residual ozone, and a content of mineral content, so that the dissolved oxygen water that can be consumed through the processes described below is formed in turn.

(4) Primary filtration step (S400)

In this step, the dissolved oxygen water produced in the dissolved oxygen water producing step (S300) is passed through a reaction filter (60) having a multi-layer structure to filter bacteria and contaminants remaining in the dissolved oxygen water.

(5) Dissolved oxygen storage step (S500)

In this step, the dissolved oxygen water having been subjected to the first filtering step (S400) is temporarily stored in the storage tank 70, thereby reducing ozone remaining in the dissolved oxygen water to dissolved oxygen.

(6) Secondary filtration step (S600)

In this step, the dissolved oxygen water reduced by dissolved oxygen is decomposed through the activated carbon filter 80 and the remaining ozone is filtered in the dissolved oxygen water storage step (S500).

(7) Dissolved oxygen storage step (S700)

This step is a step of storing the dissolved oxygen water that has passed through the activated carbon filter 80 in the secondary filtration step (S600) in the storage tank (90).

(8) Third filtration step (S800)

In this step, the dissolved oxygen water stored in the storage tank 90 is supplied to the microfilter 100 through the pump P1 to remove fine foreign substances.

(9) Dissolved Oxygen Water and Saline Separation and Discharging Step (S900)

In this step, the dissolved oxygen water that has passed through the tertiary filtration step (S700) is passed through the reverse osmosis membrane filter (110) at a high pressure using a high-pressure pump (P2) and separated and discharged into dissolved oxygen water and saline solution.

At this time, an electrodialyzer 140 is further installed on the flow path separated and discharged by the dissolved oxygen water. The mineral content in the dissolved oxygen water is regulated to be within the reference value by using the electrodialyzer 140, and finally discharged.

Meanwhile, in the first filtering step S400, the dissolved oxygen water storing step S500, and the second filtering step S600, ozone destruction steps S410 and S510 for decomposing residual ozone are performed, And S610) and backwashing steps S420, S520 and S620 for backwashing the destroyed ozone and discharging the ozone back to the outside so that the inside of the reaction filter 60, the storage tank 70 and the activated carbon filter 80 are cleaned The backwashing proceeds at regular intervals.

In the present invention, seawater stored in a storage tank is sucked into a flow path by using a mixing pump and mixed with ozone, dissolved oxygen water is produced while passing through a spiral tube, a permanent magnet and a compression nozzle in the dissolved oxygen water generator in turn, It is possible to remove residual ozone and fine contaminants in the dissolved oxygen water and finally discharge the dissolved oxygen water and the saline water separately. However, since the mineral content in the dissolved oxygen water is controlled to be within the reference value, Dissolved oxygen water having a good taste of water is produced.

10: storage tank 20: ozone generator
21: ozone alarm 30: mixed pump
40: ozone sterilizer 50: dissolved oxygen generator
60: Reaction filter 70: Storage tank
80: Activated carbon filter 90: Storage tank
100: precision filter 110: reverse osmosis membrane filter
120: ozone destructor 130: backwash device
140: electric dialysis machine P1: pump
P2: High pressure pump

Claims (7)

An apparatus for producing dissolved oxygen water using seawater, the apparatus comprising:
A storage tank 10 in which a predetermined amount of seawater is stored as treated water;
An ozone generator 20 for generating ozone;
A mixing pump 30 for sucking the water to be treated stored in the storage tank 10 and the ozone generated in the ozone generator 20 to mix and discharge them;
An ozone sterilizer 40 having an ultrasonic generator and an ozone sterilizer for sterilizing the water to be treated discharged through the mixing pump 30;
A dissolved oxygen generator 50 for supplying the sterilized water to be sterilized in the ozone sterilizer 40 into the spiral duct and then repeatedly passing a plurality of compression nozzles and permanent magnets to produce dissolved oxygen;
A reaction filter (60) for passing the dissolved oxygen water produced through the dissolved oxygen water generator (50) through a filter having a multi-layer structure to filter bacteria and contaminants remaining in the dissolved oxygen water;
A storage tank (70) for allowing the dissolved oxygen passing through the reaction filter (60) to stay for a predetermined time and allowing ozone remaining in the dissolved oxygen water to be reduced to dissolved oxygen;
An activated carbon filter 80 for decomposing and filtering the residual ozone in the dissolved oxygen water passing through the storage tank 70;
A storage tank (90) for storing dissolved oxygen water passing through the activated carbon filter (80);
A fine filter (100) for selectively removing dissolved fine particles stored in the reservoir (90) by means of a pump (P1);
And a reverse osmosis membrane filter (110) for passing the dissolved oxygen water having passed through the fine filter (100) through a reverse osmosis membrane at a high pressure by a high pressure pump (P2) to separate dissolved oxygen water and saline solution,
The reaction filter 60, the storage tank 70, and the activated carbon filter 80 are provided with an ozone destructor 120 for decomposing ozone remaining therein, a backwashing device for backwashing the ozone, 130) is provided on the inner surface of the water tank.
The method according to claim 1,
The ozone generator (20) is further provided with an ozone alarm (21) for limiting the operation of the ozone generator (20) and generating a warning sound when the ozone amount exceeds or is below a predetermined reference value or when ozone is leaked A device for producing dissolved oxygen water using seawater.
delete The method according to claim 1,
Wherein the reverse osmosis membrane filter (110) further comprises an electrodialyzer (140) disposed downstream of the reverse osmosis membrane filter (110) for controlling mineral content in the water separated and discharged by the dissolved oxygen water.
A method for producing dissolved oxygen water using seawater,
(S100) for mixing and discharging the water to be treated stored in the storage tank (10) and the ozone generated in the ozone generator (20) using a mixing pump (30);
Sterilizing the to-be-treated water by using ozone and ultrasonic waves (S200);
A dissolved oxygen water producing step (S300) of supplying the sterilized water to be treated into the spiral duct of the dissolved oxygen water generator (50) and then repeatedly passing a plurality of compression nozzles and permanent magnets to produce dissolved oxygen water;
A primary filtration step (S400) of filtering the residual bacteria and pollutants by passing the dissolved oxygen water produced in the dissolved oxygen water production step (S300) through a reaction filter (60) composed of a multi-layered filter;
(S500) for storing the dissolved dissolved oxygen in the storage tank (70) for a certain period of time to cause the residual ozone to be reduced to dissolved oxygen;
A secondary filtration step (S600) for decomposing and filtering ozone remaining in the dissolved oxygen water reacted for a predetermined time in the dissolved oxygen water storage step (S500) using an activated carbon filter (80);
A dissolved oxygen storage step (S700) of storing the dissolved dissolved oxygen in the storage tank (90) through the secondary filtration step (S600);
A tertiary filtration step (S800) of removing fine foreign substances by supplying dissolved oxygen water stored in the storage tank (90) to the microfilter (100) through a pump (P1);
The dissolved oxygen water having passed through the tertiary filtration step S800 is passed through the reverse osmosis membrane filter 110 through the high pressure pump P2 to separate and discharge the dissolved oxygen water and the saline solution S9 ),
The step S910 of controlling the amount of minerals in the water separated and discharged by the dissolved oxygen water using the electrodialyzer 140 may include a step S910 of controlling the mineral content A method for producing dissolved oxygen water using seawater.
The method of claim 5,
The ozone destruction step (S410, S510, S610) for decomposing ozone remaining in the interior of the primary filtration step (S400), the dissolved oxygen water storage step (S500) and the secondary filtration step (S600)
Further comprising back washing steps S420, S520, and S620 for backwashing the destroyed ozone and discharging the ozone to the outside.
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