KR20140008770A - Electrolytic bath for manufacturing acid water and the using method of the water - Google Patents

Abstract

The purpose of the present invention is to provide a an acid electrolyte bath capable of electrolyte for pure water besides tap water by securing enough conductivity without using ion exchange resin or extra catalyst; and a using method of the acid reduced water. Another purpose of the present invention is to provide an acid water electrolyte bath capable of obtaining water having oxidation ability while being acid on both cathode and anode, and water having reducing ability while being acid on cathode; and a using method of the acid reduced water. In order to achieve the purposes, the present invention of the acid water electrolyte bath comprises: at least two charging room separated around at least one ion exchange membrane; housing in each charging room with an inlet and an outlet; a first electrode which is installed in the charging room; a second electrode having different polar from the first electrode and which is installed closely to the ion exchange membrane; and a third electrode installed separately at a predetermined interval from the second electrode while having the same polar with the second electrode.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an acidic electrolytic cell and an acidic reduced water used therefor,

The present invention relates to an acidic electrolytic cell and a method of using the acidic reduced water. More specifically, the present invention relates to an acidic electrolytic cell and a method of using the acidic reduced electrolytic cell, An acidic water electrolysis tank capable of obtaining oxidation water and a method of using the acidic reduced water.

The present applicant has filed and filed a patent application for an electrolytic cell for generating an alkaline reduced water as in Patent Document 1. In the alkaline reducing water generating electrolytic cell, the area of the cathode electrode in contact with the electrolytic solution is formed larger than the area of the anode electrode in contact with the electrolytic solution, the anode electrode is seated in the anode chamber with the top open, The outlet of the (n-1) th cathode chamber which is continuously disposed on the side of the anode chamber and is formed in the anode chamber to communicate with the inlet of the adjacent cathode chamber, And communicates with the inlet of the chamber. According to this invention, it is possible to change the liquidity without adding the chemical agent. The alkaline reducing water thus generated is useful for cleaning surface microparticles such as semiconductor wafers and photomasks, and since only ultrapure water or pure water is used as raw water, it has an effect of preventing pattern damage and preventing oxidation of the surface. Especially, And can be reused at low cost, thereby reducing environmental problems.

However, the following problems occurred in the electrolytic cell to which the present applicant filed.

(1) Since the conventional electrolytic cell uses pure water (RO) or ultrapure water (DI) as raw water, the conductivity of the raw water is low, so ion exchange resin has to be used to improve the conductivity.

(2) When the ion exchange resin is repeatedly used through an electrolytic bath, the heat resistance of the resin is lowered, and the life of the ion exchange resin is limited.

(3) Generally, in the electrolysis, a decomposition reaction occurs at the surface of the electrode of the cathode and the anode. However, the electrolytic efficiency of the conventional electrolytic cell is lowered at a portion not directly contacting the electrode surface.

Korean Patent No. 10-0660609 (December 15, 2006)

SUMMARY OF THE INVENTION The present invention has been made in view of this point and it is an object of the present invention to provide an acidic electrolytic cell capable of electrolyzing pure water and ultrapure water as well as tap water by securing sufficient conductivity even in pure water or ultra pure water without using a separate catalyst or ion exchange resin, The object of the present invention is to provide a method of using acidic reduced water.

Particularly, in the present invention, when an existing electrolytic cell is electrolyzed by using a catalyst, it is acidic on the anode side and oxidizing power is obtained on the cathode side, while alkaline and reducing power properties can be obtained. On the other hand, (Acidic reduced water) having an acidic and oxidizing power on the anode side and acidic reduced water of the acidic electrolytic cell capable of obtaining water having an oxidizing power on the anode side (acidic oxidized water).

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided an acidic electrolytic cell comprising: a housing having at least two charging chambers separated from each other around at least one ion exchange membrane; A first electrode installed in the charging chamber; A second electrode disposed adjacent to the ion exchange membrane in the other filling chamber and having a polarity different from that of the first electrode; And a third electrode having the same polarity as that of the second electrode and spaced apart from the second electrode by a predetermined distance in each filling chamber.

Particularly, the ion exchange membrane and the first electrode are spaced apart from each other by 0.1 to 2.0 mm and used as a filling space therebetween so that raw water can pass therethrough.

In addition, the second electrode and the third electrode may be spaced 0.1 to 100.0 mm apart, so that the space between the second electrode and the third electrode is used as a filling space.

An ion tank is provided between the inlet and the outlet of the filling chamber in which the third electrode is not provided.

Further, the ion exchange membrane is characterized by being a fluorine-based catch-on exchange membrane.

In addition, the first to third electrodes may be a pneumatic platinum electrode or a mesh platinum electrode.

On the other hand, water electrolyzed from the acidic electrolytic cell according to the present invention is characterized in that the dissolved hydrogen concentration (DH) is 200 ppb to 1,500 ppb.

The acidic water electrolytic bath according to the present invention is characterized in that raw water (water) having a conductivity of 50 uS / cm or less is electrolyzed from the cathode side of the electrolytic bath to produce acidic (pH 4 to pH 6.9) To obtain an acidic reduced water having an acid value of..

In addition, acidic reduced water includes raw water for sulfated agent, drinking water or beverage, raw water for microbial growth, drinking water for cell proliferation, growth promotion, and use for preventing browning or cosmetic raw water such as vegetables and fruits.

On the other hand, in the acidic water electrolytic cell according to the present invention, raw water (water) having a conductivity of 50 uS / cm or less is electrolyzed from the anode side of the electrolytic bath and acidic (pH 3.5 to pH 6.0) ~ + 1,200 m < 2 >).

The acidic oxidation water thus obtained is characterized in that it is used as sterilizing water, microbial growth, drinking water for cell proliferation, growth promotion, and browning prevention water or cosmetic raw material water such as vegetables or fruits.

The acidic water electrolytic bath of the present invention and the method of using the acidic reduced water have the following effects.

(1) Since an ion exchange membrane is used without using an ion exchange resin, unlike conventional ion exchange resins, there is no problem such as a decrease in durability, so that the life can be extended and used.

(2) As raw water used for electrolysis, it is possible to electrolyze water using pure water (RO) or ultrapure water (DI) as raw water as well as tap water having high conductivity because there are many foreign substances.

(3) Depending on the polarity applied to the charging chamber, acidic reduced water or acidic oxidized water can be selectively electrolyzed.

(4) The acidic oxidizing water or acidic reducing water thus obtained can be used as various raw water according to the characteristics thereof.

(5) In particular, in the present invention, the raw water flows between the cathode electrodes arranged so as to be spaced apart from each other by a predetermined distance, so that the reaction can occur at the surface of the cathode to generate high concentration of hydrogen water (acidic water).

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view schematically showing the construction of an acidic water electrolytic cell according to a first embodiment of the present invention; FIG.
2 is a photograph showing a state in which antioxidative capacity of a rat is measured by using hydrogen water obtained from the cathode side of an acid water electrolytic bath according to the present invention.
3 is a cross-sectional view schematically showing the construction of an acidic water electrolytic cell according to a second embodiment of the present invention.
4 is a cross-sectional view schematically showing a configuration of an acidic water electrolytic cell according to a third embodiment of the present invention.
5 is a cross-sectional view schematically showing the construction of an acidic water electrolytic cell according to a fourth embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

As shown in FIG. 1, the acidic water electrolytic bath according to the first embodiment of the present invention includes a housing 100 in which electrolysis is performed, a housing 100 provided in the housing 100, The first electrode 200 and the second electrode 300, and an electrode such as any one of these electrodes, so that the ionized water is increased to increase the potential difference so that the acidic oxidized water or the acidic reduced water can be obtained.

Particularly, the acidic water electrolytic bath according to the present invention constitutes the filling chambers 110a and 110b using the ion exchange membrane 111 inside the housing 100 so that the electrolyzed ions can be filled in the predetermined space.

Hereinafter, this configuration will be described in more detail as follows.

The housing 100 is an electrolytic bath main body for supplying a predetermined amount of water (raw water) to the inside of the housing 100 to cause electrolysis.

The housing 100 is formed in an empty hollow shape, and the ion exchange membrane 111 is provided to separate the electrolyzed ions. The ion exchange membrane 111 divides the inside of the housing 100 into at least two filling chambers 110a and 110b. Although the preferred embodiment of the present invention has been described as being divided into two parts, it is also possible to divide it into more parts. In a preferred embodiment of the present invention, a fluorine-based catch-on exchange membrane (DuPont Sanaphion 117) can be used as such an ion exchange membrane.

On the other hand, inlet ports 112a and 113a for receiving raw water for electrolysis and outlet ports 112b and 113b for discharging the electrolyzed acidic water are formed in the filling chambers 110a and 110b, respectively do.

Here, although two charge storage chambers 110a and 110b are illustrated, a plurality of charge storage chambers 110a and 110b may be partitioned by ion exchange membranes 111 and connected in parallel.

The first electrode 200 is installed in one of the filling chambers 110a. At this time, the first electrode 200 secures a predetermined filling space between the first electrode 200 and the ion exchange membrane 111.

The first electrode 200 is installed in the filling chamber 110a such that the gap W1 between the first electrode 200 and the ion exchange membrane 111 is 0.1 mm to 2.0 mm. This is because if the gap W1 becomes wider, it is judged that the electric resolution with the second electrode 300 to be described later is lowered.

In the preferred embodiment of the present invention, when the first electrode 200 is mounted on the housing 100 having two or more charging chambers, the first electrode 200 is mounted on the outermost charging chamber.

The second electrode 300 is installed in the other filling chamber 110b so as to be adjacent to the ion exchange membrane 111 with a polarity different from that of the first electrode 200. [

At this time, when a plurality of charging chambers 110b in which the second electrodes 300 are provided are provided, the second electrodes 300 are installed one by one for each charging chamber.

The third electrode 300 'has the same polarity as the second electrode 300 and is installed in the charging chamber 110b in which the second electrode 300 is installed.

At this time, the third electrode 300 'is spaced apart from the second electrode 300 by a predetermined gap W2. In this case, the gap W2 is formed to be 0.1 to 100.0 mm, and utilized as a space for filling ions therebetween.

Meanwhile, in the preferred embodiment of the present invention, the first to third electrodes 200, 300, and 300 'may use a pore-forming platinum electrode or a mesh platinum electrode.

[action]

The operation of the acidic water electrolytic cell according to the present invention having the same structure as that of the first embodiment of the present invention will now be described.

First, raw water is supplied to the housing 100 through the inlet ports 112a and 113a. At this time, the raw water may be supplied through only one of the two inlet ports 112a and 113a.

A positive electrode is applied to the first electrode 200 and a negative electrode is applied to the second electrode 300 and the third electrode 300 '. As the raw water is electrolyzed, OH ^- is filled in the charging chamber 110a to which the anode is applied by the ion exchange membrane 111, and H ⁺ is filled in the other charging chamber 110b.

When OH ^- and H ⁺ are filled in each of the filling chambers 110a and 110b, a current flows due to a potential difference between these ions. Particularly, in the case of the charging chamber 110b in which the third electrode 300 'is installed, it is considered that some H ⁺ is converted to H or H ₂ due to an increase in negative (-) ions.

The high potential difference obtained by the filling of ions can be used not only for general tap water but also for electrolysis of low conductivity (RO) or ultra pure water (DI).

< Between the cathodes  Changes in physical properties for gap changes>

In order to obtain a change in the physical properties of the acidic water electrolytic bath according to the present invention operating as described above with respect to the negative electrode side, that is, the acidic water obtained in the above-mentioned filling chamber 110b according to the change in the gap W2, Respectively.

Water (conductivity: 10uS / cm or less, pH 7.0, ORP + 230㎷, temperature: 25.5 ℃)

Power: DC24V

Flow rate (flow rate): 0.3 l / min

Measuring instrument: Toasan's measuring instrument

pH: TOA- 21P

ORP: TOA- 21P

DH: TOA DH-35A

The following is a graph showing the measurement results.

Gap / property

pH
ORP
DH
2 mm

4.82
-653㎷
1.43 ppm
5 mm

5.05
-620 ㎷
1.21 ppm
10 mm

5.37
-586 ㎷
0.97 ppm
20 mm

5.83
-534 ㎷
0.81 ppm
30 mm

6.20
-508 ㎷
0.77 ppm
40 mm

6.42
-472 ㎷
0.68 ppm
50 mm

6.75
-426 ㎷
0.52 ppm
60 mm

6..81
-398 ㎷
0.43 ppm
70 mm

6.98
-327 ㎷
0.32 ppm

As shown in Table 1 above, the electrolytic water obtained by the present invention is acidic in general, and the electrolytic water gradually becomes strongly acidic as the gap W2 becomes narrower, and the redox potential difference (ORP) As shown in FIG. As a result, it can be seen that the electrolytic water thus obtained is an acidic reduced water.

< Anode side  Oxidative power Measurement example >

The results of measurement of the change in the physical properties of the oxidative force according to the current change in the charging chamber provided with the anode of the oxidized water electrolytic bath according to the present invention are as follows.

Water (conductivity: 10 uS / cm or less, pH 7.0, ORP + 230 mV, 25.5 ° C)

Power: DC24V

Flow rate (flow rate): 0.3 l / min

Measuring instrument: Toasan's measuring instrument

pH: TOA-21P

ORP: TOA- 21P

The following is a graph showing the measurement results.

Current (A)

Voltage (V)
ORP (mV)
pH
0.5

6.0
+995
4.80
1.0

8.5
+1041
4.46
1.5

10.5
+1952
4.41
2.0

12.0
+1060
4.39
2.5

12.9
+1067
4.34
3.0

14.1
+1073
4.28

As shown in the above table, as the current intensity increases, the oxidation-reduction potential (ORP) becomes larger and the oxidizing power becomes larger. In addition, the pH concentration becomes lower and becomes closer to the acidity.

<Hazard test of acid water>

(1) Influence of hydrogen on the cathode side on the retina of the eye.

Retinal ischemia-reperfusion (IR) damage due to transient elevation of intraocular pressure (IOP) is known to cause neuronal damage by generating reactive oxygen species.

IOP of experimental mice was induced for 60 minutes to induce ischemia. During the ischemic reperfusion period, saline oral eye drops of acid hydrogen hydrogens according to the present invention were continuously administered.

As a result, the hydrogen concentration in the vitreous body was immediately vaporized and the IR-induced OH was reduced. Eye drops reduced retinal cell death and oxidative stress indicator-positive cell numbers and inhibited retinal thickness loss due to activation of Muller glia, astrocytes, and microglia .

Eye drops restored retinal thickness by more than 70%.

(2) Immediate-type allergic reaction

Allergic reactions were observed from mice fed with hydrogen peroxide (1.0 ppm hydrogen) obtained from the cathode side of the acidic water electrolytic bath of the present invention.

In rat RBL-2H3 mast cells, hydrogen inhibited FcεRI-associated Lyn phosphorylation and downstream signal transduction (NADPH oxidase activity and decreased hydrogen peroxide production) Inhibited

(3) Measurement of the antioxidant power of the hydrogen water obtained from the cathode side

Four weeks old male ICR mice were allowed to adapt for 1 week, and feed and water were freely taken for 15 days. Control group was fed tap water. Hydrophilic water was changed three times a day to prevent concentration of hydrogen peroxide. After the end of the sample administration, mice were anesthetized with ether and blood was collected from the heart. The collected blood was separated from the plasma of the anticoagulants.

Plasma total antioxidant activity was measured using a kit for measuring the total antioxidant status of Randox (U.K.). Immobility time was measured during forced swimming for 6 minutes to investigate the physical enhancement effect. As shown in Fig. 2, a circular cylinder (height: 25 cm, diameter: 10 cm) was filled with water of 23 to 25 캜 to a depth of 10 cm. The floating time of 4 minutes before the end was measured. I put my head on the water and floated the floating posture without movement.

After the forced swimming test, mice were anesthetized with ether and blood was collected from the heart. The collected blood was centrifuged at 4 ° C at 3000 rpm for 10 minutes to obtain serum.

Using autoanalyzer (Hitachi 747, Hitachi, Japan), blood urea nitrogen, creatin kinase, lactic dehydrogenase, glucose and total protein total protein) were measured. Measurements were analyzed by Student's t-test and expressed as M ± SEM.

Oxygen is an essential element in organic respiratory organisms, but active oxygen, which is generated when it is incompletely reduced during energy metabolism, destroys and destroys macromolecules in cells, killing cells and killing them. Active oxygen is generated by factors such as tobacco and soot, and damages biological components such as proteins, DNA, enzymes, and T-cells to cause various diseases. In particular, it attacks unsaturated fatty acid constituent of biological membrane and generates lipid peroxides Are known to cause aging and adult diseases.

5-week-old ICR mice were fed with drinking water for 15 days and plasma was separated to measure the total antioxidant status (Table 3).

division

Compare Trolox (relative Trolox) concentration [nmol / ml plasma]
Control (Comparative)

1.24 ± 0.06
Hydrophilic (Example)

1.46 + 0.13 ^* [Table 3] Effect of Hydrophobic Administration on Total Oxidation Capacity of Mouse Plasma ^1
1 mean ± SEM, n = 10.
² water-soluble vitamin E analogue.
^* P <0.05 compared with control group

As a result, the total antioxidant capacity of the drinking water group was significantly increased by 18% (P <0.05) as compared with the control group consuming tap water. The total antioxidant capacity of plasma can be considered as a representative value of the antioxidant capacity in the body. The increase of total antioxidant capacity of plasma means that the body antioxidant capacity is increased by the consumption of water. These results show that hydrogen can increase biocidal antioxidant ability and protect the body from various diseases and aging caused by various factors.

Forced swimming tests are used for anti fatigue and endurance tests. 5-week-old male ICR mice were fed with drinking water for 15 days and then subjected to a forced swimming test to measure immobility time and conduct blood biochemical tests (see FIG. 2). The immersion time in the forced swimming test of the mice was significantly reduced by 13% compared to the control group (see Table 4). This indicates that the intake of water decreased the anti-fatigue and endurance-enhancing effects and decreased the immobility period.

Comparative Example

Example (hydrogen Nitrogen group)
Before ingestion

190 ± 13
193 ± 11
After ingestion

224 ± 8
195 ± 7 * Table 2 Effect of drinking water intake on immersion time (sec) in forced swimming test of mice ^1
1 mean ± SEM, n = 10.
^* P <0.05 compared with control group.

The blood biochemical indicators associated with fatigue include a 15% decrease in blood urea nitrogen, a 22% decrease in creatin kinase, a 9% decrease in lactic dehydrogrnase, a 9% increase in glucose and a decrease in total protein protein) increased by 19%, and all measurements were improved by the ingestion of drinking water (see Table 5).

Therefore, it has been proved that the consumption of drinking water has the effect of strengthening and anti - fatigue.

Control group

Hydrogen nuclide
Blood urea nitrogen (mg / dl)

22.0 ± 0.9
18.8 ± 0.6 *
Creatin kinase (mg / dl))

0.36 + 0.03
0.28 0.02 *
The lactic dehydrogenase (U / I)

988 ± 167
896 ± 171
Glucose (mg / dl)

219 ± 13
238 ± 14
Total protein (g / dl)

4.3 ± 0.1
5.1 ± 0.1 * [Table 5] Influence of drinking water intake on blood biochemical indicators of mice ^1
1 mean ± SEM, n = 10.
* P <0.05 compared with control group

Here, the same reference numerals are assigned to the same components as those of the first embodiment, and a detailed description thereof will be omitted.

The acidic water electrolytic bath according to the second embodiment of the present invention is different from the first embodiment in that the housing 100 of the first embodiment further includes the ion tank 400.

3, the ion tank 400 is provided between the inlet 112a and the outlet 112b of the housing 100 and is connected to the first electrode 200 through the ion- Is a tank that stores the water.

Thus, the acidic water electrolytic cell according to the second embodiment of the present invention can generate a larger potential difference proportionally larger than the amount of ions stored in the ionic tank 400, thereby increasing the acidification and reducing power.

Here, the same reference numerals are assigned to the same components as those of the first embodiment, and a detailed description thereof will be omitted.

The acidic water electrolytic cell according to the third embodiment of the present invention is such that the polarities of the electrodes are changed and applied as shown in Fig.

That is, in the acidic electrolytic bath of Example 3, the negative (-) is applied to the first electrode 200a and the positive (+) is applied to the second and third electrodes 300a and 300b.

Thus, in Example 1, acidic but chelated acidic water can be obtained, but in Example 2, acidic and highly oxidative acidic water can be obtained.

Here, the same reference numerals are assigned to the same components as those of the third embodiment, and a detailed description thereof will be omitted.

As shown in Fig. 5, the acidic water electrolytic bath according to the fourth embodiment of the present invention further comprises an ion tank 400 in the housing 100 of the third embodiment.

So that the potential difference of the acidic oxidation water can be further increased.

(Invention)

The acidic reduced water obtained from the electrolytic cell according to the present invention is obtained by electrolyzing raw water (water) having a conductivity of 50 uS / cm or less and having acidity (pH 4 to pH 6.9) and reduction power (ORP -100 to -650 ㎷) . The acidic reduced water has a dissolved hydrogen concentration (DH) of 200 ppb to 1,500 ppb.

The acidic reduced water according to the present invention can be used as a source of sulfating agent, water for drinking water, source water for raw water, microbial growth, cell water, edible water, growth promotion, browning preventive water for vegetables and fruits, and cosmetics raw water.

On the other hand, the acidic oxidized water obtained from the electrolytic cell according to the present invention is electrolyzed at a cathode side by electrolyzing raw water (water) having a conductivity of 50 uS / cm or less and having acidity (pH 3.5 to pH 6.0) ).

Such acidic reduced water can be used as sterilizing water, microbial proliferation, cell stimulation edible water, growth promotion, browning prevention of vegetables and fruits, or cosmetic raw material water.

As described above, according to the present invention, acidic reduced water can be obtained by increasing the potential difference by filling ions dissociated through the filling space, and the acidic oxidation water can be obtained by changing the polarity.

100: Housing
110a, 110b: Charging chamber
111: ion exchange membrane
112a, 113a:
112b, 113b:
200: first electrode
300: second electrode
300 ': third electrode
400: ion tank

Claims (11)

At least two charging chambers 110a and 110b separated from each other around at least one ion exchange membrane 111 are provided and inlet ports 112a and 113a and outlet ports 112b and 113b are provided in the charging chambers 110a and 110b, A housing 100 formed with a plurality of projections;
A first electrode 200 installed in the charging chamber 110a;
A second electrode 300 disposed adjacent to the ion exchange membrane 111 in the remaining filling chamber 110b and having a polarity different from that of the first electrode 200; And
And a third electrode 300 'having the same polarity as that of the second electrode 300 and spaced apart from the second electrode 300 by a predetermined distance in each of the filling chambers 110b Features acidic electrolytic cell.
The method of claim 1,
Wherein the ion exchange membrane (111) and the first electrode (200) are spaced apart from each other by a gap (W1) of 0.1 to 2.0 mm so that raw water can pass therethrough.
3. The method according to claim 1 or 2,
Wherein the second electrode (300) and the third electrode (300 ') are spaced apart from each other by a gap (W2) of 0.1 to 100.0 mm and used as a filling space therebetween so that raw water can pass therethrough. Electrolytic cell.
The method of claim 3, wherein
Between the inlet 112a and the outlet 112b of the filling chamber 110a in which the third electrode 300 'is not provided,
And an ion tank (400).
5. The method of claim 4,
Wherein the ion exchange membrane (111) is a fluorine-based catch-ion exchange membrane.
The method of claim 5, wherein
Wherein the first to third electrodes (200, 300, 300 ') are a porous platinum electrode or a mesh platinum electrode.
The method according to claim 6,
Wherein electrolytic water from the electrolytic cell has a dissolved hydrogen concentration (DH) of 200 ppb to 1,500 ppb.
A process for producing acidic reduced water having an acidity (pH 4 to pH 6.9) and a reducing power (ORP -100 to -650 ㎷) on the anode side by electrolyzing raw water (water) having a conductivity of 50 uS / cm or less to the electrolytic bath according to claim 7 Lt; RTI ID = 0.0 &gt; 1, &lt; / RTI &gt;
The method of claim 8,
The acidic reduced water is used as the raw material water of sulfated water, drinking water or beverage water, microbial growth and drinking water for cell proliferation, growth promotion, and browning prevention water or cosmetic raw water such as vegetables and fruits.
7. An electrolytic cell according to claim 7, wherein raw water (water) having a conductivity of 50 uS / cm or less is electrolyzed and acidic (pH 3.5 to pH 6.0) on the anode side is oxidized with acidic (ORP + 700 to + To obtain an acidic electrolytic bath.
11. The method of claim 10,
The acidic reduced water is used as sterilizing water, microbial growth and drinking water for cell proliferation, growth promotion, and browning prevention water or cosmetic raw material water such as vegetables and fruits.

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