JPH1076270A - Method for simultaneous generation of strongly alkaline water and hypochlorous acid sterilizing water by electrolysis - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for the simultaneous generation of hypochlorous acid sterilizing water 10.5-13.5 in pH by using a set of diaphragm type electrolytic bath. SOLUTION: A chloride salt aqueous solution is electrolyzed to produce strongly alkaline water 10.5-13.5 in pH from a cathode chamber 5, or the strongly alkaline water produced in the cathode chamber is mixed with water to prepare strongly alkaline water 10.5-13.5 in pH, strongly acidic water containing chlorine gas is produced from an anode chamber 6, and the acidic water is mixed with water to prepare hypochlorous acid water 3-7.5 in pH. Strongly acidic water containing chlorine gas is divided into acidic water containing more chlorine gas and acidic water containing less chlorine gas, while parts of them are being discharged outside the discharge route of the electrolytic strongly acidic water, and the acidic water containing more chlorine gas is mixed with water to produce hypochlorous acid water. A part or the whole of the strongly acidic water discharged outside the system can be added to water to be mixed to produce hypochlorous acid water or to the mixed hypochlorous acid water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a highly alkaline water having a pH of 10.5 to 13.5 and a pH of 3 to 1 using a diaphragm electrolytic cell.
7.5 A method for simultaneously producing hypochlorous acid sterilized water.

[0002]

Background of the Invention When washing dishes and the like, washing with strong alkaline water and then sterilizing with hypochlorous acid water having a pH of 3 to 7.5 can provide an efficient washing and sterilizing effect. In addition, metal appliances sterilized with hypochlorous acid water are less likely to rust when neutralized with alkaline water.

[0003] As described above, there are cases where hypochlorite sterilized water and strong alkaline water by electrolysis are used at the same time or before and after, and simultaneous supply of strong alkaline water and hypochlorous acid sterilized water that can respond to this is used. Means are needed.

[0004]

However, the purpose of the electrolytic cell for producing hypochlorite sterilizing water and the electrolytic cell for producing strong alkaline water are different from each other. It requires two dedicated machines, an electrolytic cell that generates strong alkaline water, and costs for manufacturing and maintenance are high, and the non-use side electrolytic water that is simultaneously generated in the electrolytic cell is discarded. There was much waste.

In order to simultaneously produce strong alkaline water and sterilized hypochlorous acid water having a pH of 3 to 7.5, a method of adding a special agent such as caustic soda or sodium metasilicate, or a method of producing electrolytic water in a diaphragm is used. Various methods can be considered to combine the equipment and the non-diaphragm electrolyzed water generator, but the former is difficult to adjust and mix the chemicals, and the latter requires multiple electrolyzed water generators of different models, Special techniques were required for piping and mixing ratios.

Accordingly, a first object of the present invention is to use a single type of electrolytic cell, and use a strong alkaline water having a high washing effect of pH 10.5 to 13.5 and a pH of 3 to 7.5 having excellent sterilizing power. An object of the present invention is to provide a method for simultaneously producing hypochlorous acid sterilized water.

It is a second object of the present invention to provide the above method in which the pH and concentration of the hypochlorite sterilizing water can be easily adjusted.

[0008] A third object of the present invention is to provide the above method in which the pH and concentration of the hypochlorous acid sterilizing water can be more easily adjusted.

A fourth object of the present invention is to increase the pH value of the hypochlorous acid sterilizing water even if the hypochlorous acid concentration is increased.
An object of the present invention is to provide the above method which can be adjusted to 3 to 7.5.

[0010]

According to the method of the present invention for achieving the first object, an aqueous solution containing a chloride salt such as sodium chloride is electrolyzed in a diaphragm electrolyzer, and the pH of the aqueous solution is adjusted to pH 10. Producing 5 to 13.5 strong alkaline water,
Alternatively, the strong alkaline water generated in the cathode chamber is mixed with water to adjust the pH to a strong alkaline water having a pH of 10.5 to 13.5, and at the same time, strong acidic water containing chlorine gas is generated from the anode chamber. Mixed with acidic water containing water to pH 3
It is characterized in that it is adjusted to a hypochlorous acid solution of up to 7.5.

According to the method of the present invention for achieving the second object, an aqueous solution containing a chloride salt such as sodium chloride is electrolyzed in a diaphragm electrolyzer, and a pH of 10.5 to 1 is supplied from a cathode chamber.
3.5 strong alkaline water is generated, or strong alkaline water generated in the cathode chamber is mixed with water to obtain a pH of 10.5 to
Along with adjusting to 13.5 strong alkaline water, a strong acid water containing chlorine gas is generated from the anode chamber, and a part of the strong acid water containing a relatively small amount of chlorine gas is contained in the strong acid water containing chlorine gas. And / or mixing the strongly acidic water with a relatively large amount of chlorine gas with water while draining a portion of the chlorine gas with a relatively large amount of the chlorine gas to the outside of the electrolytic strong acid water discharge system. Then, the pH is adjusted to a hypochlorous acid aqueous solution having a pH of 3 to 7.5.

Further, in the method of the present invention for achieving the third object, an aqueous solution containing a chloride salt such as sodium chloride is electrolyzed in a diaphragm electrolyzer, and the pH of the aqueous solution is adjusted to pH10.
Producing a strong alkaline water of 5 to 13.5, or
The strong alkaline water generated in the cathode chamber is mixed with water to adjust the pH to 1
While adjusting to a strong alkaline water of 0.5 to 13.5,
Generate strongly acidic water containing chlorine gas from the anode chamber, and compare this strongly acidic water containing chlorine gas with chlorine gas or strong acid water containing relatively large amount of chlorine gas without or with chlorine gas. Partially separated into strongly acidic water, which does not contain chlorine gas or a relatively small amount of chlorine gas,
And / or while draining a part of the chlorine gas or the chlorine gas of the relatively acidic gas containing a relatively large amount of the chlorine gas out of the discharge line of the electrolytically acidic water, the chlorine gas or the chlorine gas is relatively large. Along with producing hypochlorous acid water by mixing the strongly acidic water containing with the water, a part or all of the strongly acidic water containing no chlorine gas or relatively little chlorine gas drained out of the system, The pH value of the hypochlorous acid water finally produced is adjusted to 3 to 7.5 by adding to the water mixed for the production of the hypochlorous acid water or to the hypochlorous acid water after mixing. It is characterized by doing.

The concentration of hypochlorous acid may be adjusted by adjusting the flow rate of the chlorine gas mixed with water or the strong acid water containing a relatively large amount of chlorine gas. Drained or water mixed for the production of hypochlorous acid water, or strong acid water containing no chlorine gas or containing relatively little chlorine gas to be added to the mixed hypochlorous acid water The flow rate may be adjusted to control the pH of the hypochlorous acid sterilizing water.

Further, according to the method of the present invention for achieving the fourth object, an aqueous solution containing a chloride salt such as sodium chloride is electrolyzed in a diaphragm electrolyzer, and a pH of 1 is supplied from a cathode chamber.
0.5 to 13.5 strong alkaline water is generated, or strong alkaline water generated in the cathode chamber is mixed with water to adjust pH.
While adjusting to a strong alkaline water of 10.5 to 13.5, strong acid water containing chlorine gas is generated from the anode chamber, and a part or all of the strong acid water containing chlorine gas generated from the anode chamber is removed. Water, and then add the pH
Add a part of strong alkaline water of 10.5-13.5 to add p
It is characterized by adjusting to hypochlorous acid water of H3 to 7.5

[0015]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a first embodiment of the present invention.
Shows an example of an apparatus for carrying out the method of FIG.
Consists of a diaphragm electrolyzer in which a cathode electrode 5 and an anode chamber 6 are partitioned by an electrolytic diaphragm 4 between a negative electrode 2 and a positive electrode 3 which are disposed opposite to each other, and a raw water supply pipe 7 is connected to a lower part of the electrolytic cell 1. At the same time, independent discharge passages 8 and 9 are connected to the upper part of the cathode chamber 5 and the anode chamber 6, respectively, to constitute a continuous water flow type electrolytic water regulator.

An electrolytic tank 1 is connected to a water supply pipe 7 through a metering pump 10.
The raw water is supplied through a water supply branch pipe 7a provided with a water solution, and an aqueous solution of a chloride salt such as sodium chloride (NaCl) (for example, an aqueous solution of 1 to 5%, preferably 2 to 3%)
Is from the chemical tank 11 to the chemical supply pipe 12 and the metering pump 1
3, the water is supplied to the water supply section of the electrolytic cell 1, mixed with the raw water, and introduced from the water supply section of the electrolytic cell 1 into the two electrode chambers 5 and 6.

The dilution water supply pipe 14 branched from the water supply pipe 7 of the electrolytic cell 1 is further branched into two dilution branch pipes 14a and 14b, and one dilution branch pipe is connected to the discharge passage 8 of the cathode chamber 5 of the electrolytic cell 1. 14a is connected via a flow path switching valve 15, and the other dilution branch pipe 1 is connected to the discharge path 9 of the anode chamber 6 of the electrolytic cell 1.
4b is connected.

With the above configuration, the strong alkaline water generated in the cathode chamber 5 of the electrolytic cell 1 is selectively joined to the dilution branch pipe 14a by operating the flow path switching valve 15, and is supplied from the dilution branch pipe 14a. Is selectively diluted by That is, the strong alkaline water in the cathode chamber 5 has the pH as it is.
Drain pipe 16a as strong alkaline water of 10.5-13.5
Or diluted by mixing the water supplied from the dilution branch pipe 14a by switching the flow path switching valve 15, and discharged from the drain pipe 16a as strong alkaline water having a pH of 10.5 to 13.5. .

On the other hand, the strongly acidic water containing chlorine gas generated in the anode chamber 6 is diluted by mixing the water supplied from the dilution branch pipe 14b. As a result, the chlorine gas component of the strongly acidic water containing the chlorine gas generated in the anode chamber 6 generates hypochlorous acid by mixing with the water, thereby producing hypochlorous acid water and containing chlorine gas. The pH value of the hypochlorous acid water is controlled to pH 3 to 7.5 by the hydrochloric acid component of the strongly acidic water.
6b. Thus, the method of claim 1 of the present invention is performed.

The drain pipe 16b has a gas absorption reaction tank 1
8 is interposed, and water containing chlorine gas is mixed with water so that sterilized hypochlorous acid water having a pH of 3 to 7.5 is efficiently produced.

FIG. 2 shows an example of an apparatus for carrying out the method according to claim 2 of the present invention, wherein the same reference symbols as those in FIG. 1 indicate the same members or configurations as in FIG. The apparatus of FIG. 2 is further provided with a second (alternate) strong acid water drainage line 17 from the electrolytic strong acid water passage above the anode chamber 6 or above the anode chamber 6 in addition to FIG. When water containing chlorine gas is discharged from the discharge passage 9, part of the strongly acidic water generated from the anode chamber 6 can be drained from the drain pipe 17.

The drain pipe 17 divides the strongly acidic water containing chlorine gas generated from the anode chamber 6 into a strongly acidic water containing relatively large amount of chlorine gas and a strongly acidic water containing relatively little chlorine gas. Part of discharge of strong acid water with relatively small amount of chlorine gas 9
Is used to adjust the pH of the hypochlorous acid sterilizing water after mixing the strongly acidic water containing a relatively large amount of chlorine gas discharged from the discharge passage 9 and the water. For this reason, preferably, as shown in FIG. 2, the branch port 20 of the second strongly acidic water drainage pipe 17 is provided below the base outlet 21 of the discharge path 9, and the base port of the discharge path 9 is provided. A chlorine gas reservoir 22 is formed near the outlet 21.

Since the chlorine gas in the strong acid water generated from the anode chamber 6 floats in the liquid, the strong acid water containing the chlorine gas from the anode chamber 6 contains a relatively large amount of chlorine gas. A component containing a large amount of chlorine gas is discharged from a discharge path 9 and a component containing a large amount of chlorine gas is discharged from a discharge path 9, and chlorine gas is discharged from a second strong acid water drainage pipe 17. Strongly acidic water with little hydrochloric acid is drained. Although not shown, a gas-liquid separation device using a gas-liquid separation membrane or the like is provided above the anode chamber 6, and after mixing water with the gas-liquid separated chlorine gas to generate hypochlorous acid water, Mixing the gas-liquid separated strong acid water with the hypochlorous acid water
H may be adjusted.

Preferably, as shown in FIG. 2, a flow regulating mechanism 23 such as a flow regulating valve is provided in the discharge passage 9 to adjust the discharge passage of the discharge passage 9 so that the strong alkali discharged from the discharge passage 8 is discharged. The flow rate ratio between the water and the strongly acidic water containing chlorine gas discharged from the discharge passage 9 may be adjusted.

A similar flow control mechanism 24 is also provided in the second strongly acidic water drainage pipe 17 to control the amount of strongly acidic water discharged from the drainage pipe 17 to sterilize hypochlorous acid. You may make it improve the pH adjustment precision of water.

Thus, in the apparatus shown in FIG. 2, strong alkaline water having a pH of 10.5 to 13.5 is drained from the drain pipe 16a, and sterilized hypochlorous acid water having a pH of 3 to 7.5 is drained from the drain pipe 16b. The water is drained, and the strongly acidic water containing relatively little chlorine gas is drained from the second strongly acidic water drain pipe 17. The strongly acidic water drained from the drain pipe 17 can also be used as a neutralizing agent for the waste water after the use of the strong alkaline water.

The apparatus shown in FIG. 2 further passes a part of the strongly acidic water, particularly a part of the chlorine gas component, from a passage (a discharge passage 9 in FIG. 2) of the strongly acidic water containing a large amount of chlorine gas. A discharge branch pipe 25 for discharging to the outside is provided, and a part of the strongly acidic water containing a large amount of chlorine gas discharged from the discharge path 9 is discharged to the outside by operating the flow rate control valve 26.
Thereby, the mixing amount of the chlorine gas component mixed with the water from the dilution branch pipe 14b is controlled.
The chlorine gas component discharged from the drain branch pipe 25 is adsorbed and removed in a treatment tank 27 using activated carbon or the like.

Thus, in the embodiment of FIG. 2, the strongly alkaline water generated in the cathode chamber 5 is mixed with or diluted with water from the dilution branch pipe 14a as it is, as in the embodiment of FIG. The strong acid water containing chlorine gas generated in the anode chamber 6 and containing a relatively large amount of chlorine gas discharged from the discharge passage 9 out of the strongly acidic water containing chlorine gas generated in the anode chamber 6. The water is mixed with the water supplied from the dilution branch pipe 14b, diluted and converted into hypochlorous acid water having a pH of 3 to 7.5, and discharged from the drain pipe 16b.

The hypochlorous acid water generated as described above does not contain the chlorine gas mixed with the dilution water because the concentration of hypochlorous acid changes depending on the amount of chlorine gas mixed with the dilution water. The pH changes depending on the amount of the strongly acidic water, that is, the amount of the hydrochloric acid component. Therefore, strong acid water containing chlorine gas that is mixed and diluted with water can control the amount of hypochlorous acid by separately controlling the amount of chlorine gas and the amount of strong acid water (hydrochloric acid component) not containing chlorine gas. Various types of hypochlorous acid sterilized water in which the concentration and the pH value are individually changed can be obtained. In the embodiment of FIG. 2, strong acid water containing relatively little chlorine gas from the strong acid water drain pipe 17,
That is, since a part of the hydrochloric acid component can be drained to the outside and a part of the chlorine gas can be discharged to the outside from the drain branch pipe 25, the discharge amount of the hydrochloric acid component from the strongly acidic water drain pipe 17 and the drain branch pipe By individually adjusting the discharge amount of chlorine gas from the sample 25, various types of hypochlorous acid sterilizing water having slightly different hypochlorous acid concentrations and pH values can be obtained.

FIG. 3 shows an example of an apparatus for carrying out the method according to claim 3 of the present invention. The same reference symbols as those in FIG. 2 indicate the same members or configurations as those in FIG. FIG. 3 shows, similarly to FIG. 2, separately discharging strongly acidic water containing a relatively large amount of chlorine gas and strong acidic water containing a relatively small amount of chlorine gas into the upper part of the anode chamber 6 or the passage above the anode chamber 6. Or a gas-liquid separator that separates chlorine gas and strong acid water that does not contain chlorine gas using a gas-liquid separation membrane, etc., and compares chlorine gas or chlorine gas from the discharge path 9. The highly acidic water containing a large amount is discharged, and the second strongly acidic water discharge line 17 is discharged.
Strongly acidic water which does not contain chlorine gas or contains relatively little chlorine gas is drained. It should be noted that a discharge branch pipe 25 for discharging a part of the chlorine gas component out of the system is disposed in the drainage channel 9.
Is similar to the embodiment of FIG.

The apparatus of FIG. 3 further includes a second strongly acidic water line 1.
To add a part or all of the strongly acidic water containing no or relatively little chlorine gas drained from 7 to the dilution branch pipe 14b or the drain pipe 16b downstream thereof via the metering pump 28. Are connected.
This pipe line 29 is provided via a flow path switching valve 30 such as a three-way valve.
It is desirable to selectively communicate with the dilution branch pipe 14b and / or the drain pipe 16b.

The method of the present invention using the apparatus of FIG.
H10.5 to 13.5 process of producing strong alkaline water,
Fig. 2 shows that chlorine gas or a part of strong acid water containing a relatively large amount of chlorine gas and part of a strong acid water containing no chlorine gas or containing a small amount of chlorine gas can be discharged out of the system.
Is the same as that of the apparatus described above, except that the pipe 29 and the metering pump 28
This is different in that strongly acidic water containing no or little chlorine gas is added to mixed dilution water for producing hypochlorous acid water or mixed hypochlorous acid water.

If water is mixed and diluted with a mixture of chlorine gas and strongly acidic water to adjust the pH to a hypochlorite sterilized water having a pH of 3 to 7.5, the chlorine gas component and the liquid component interfere with each other, Although there is a problem that it is difficult to obtain hypochlorous acid sterilizing water having a desired pH and hypochlorous acid concentration, the above-mentioned method requires chlorine gas for producing hypochlorous acid or water containing a large amount of chlorine gas, and p.
Since strong acid water without chlorine gas or strong acid water with little chlorine gas for adjusting H is supplied to another mixing section independently, interference between gas and liquid is less likely to occur when mixing with dilution water. In addition, various types of hypochlorous acid sterilized water in which the pH and the concentration of hypochlorous acid are slightly changed can be more easily produced.

FIG. 4 shows an example of an apparatus for carrying out the method according to claim 4 of the present invention, wherein the same reference symbols as those described above denote the same members or configurations. FIG. 4 shows an electrolysis of an aqueous solution containing a chloride salt such as sodium chloride in a diaphragm electrolyzer 1.
A strong alkaline water having a pH of 10.5 to 13.5 is generated from the cathode chamber 5, or a strong alkaline water generated in the cathode chamber 5 is mixed with water supplied from the dilution branch pipe 14a to adjust the pH to 1
While adjusting to a strong alkaline water of 0.5 to 13.5,
A strong acid water containing chlorine gas is generated from the anode chamber 6, and a part or all of the strong acid water containing chlorine gas generated from the anode chamber 6 is mixed with water supplied from the dilution branch pipe 14b,
Further, the mixed product water is added to the above-mentioned p from the drain pipe 16a.
A part of strong alkaline water having a pH of 10.5 to 13.5 is added to adjust the pH to a hypochlorous acid solution having a pH of 3 to 7.5.

For this reason, a drain pipe 31 for draining a part of the strongly acidic water containing chlorine gas to the outside of the system is branched from the discharge pipe 9 of the anode chamber 6, so that the strong acidic water containing chlorine gas is required. The amount is sent through the metering pump 32 and is mixed with the water in the dilution branch pipe 14b.
A pipe 34 in which a metering pump 33 is interposed is connected from the discharge pipe 16a of the strong alkaline water of 13.5 to the drain pipe 16b of the strong acid water, and a part of the strong alkaline water of pH 10.5 to 13.5 is drained. It can be added to the mixed product water in the tube 16b.

Diluting water supply pipe 14 for strongly acidic water containing chlorine gas
In the case of producing hypochlorous acid water by mixing with the water of b, when the concentration of hypochlorous acid is to be increased, the amount of strongly acidic water to be mixed with the water must be relatively increased, so that it is produced. Although the pH of hypochlorous acid water tends to be low, the above-mentioned method is applied to mixed product water having a pH of too low to have a pH of 10.5 to
By adding a part of 13.5 strong alkaline water, the pH of the hypochlorous acid sterilizing water can be adjusted to 3 to 7.5.

According to the present invention, in any of the above cases, the electrolytically treated water produced in the diaphragm electrolytic cell is diluted with water to a pH of 10.
Since strong alkaline water of 5 to 13.5 and hypochlorite sterilizing water of pH 3 to 7.5 are generated, the aqueous chloride salt solution supplied to the diaphragm electrolyzer is 1 to 5%, preferably 2 to 3%. It is preferred to use a highly concentrated aqueous solution of This also improves the electrolysis efficiency.

In the figures, metering pumps 10, 13, 2
For 8, 32 and 33, it is desirable to use a variable flow rate metering pump capable of adjusting the set flow rate.

[0039]

According to the present invention, electrolyzed water produced using a set of diaphragm electrolyzers is diluted with water to obtain a strong alkaline water having a pH of 10.5 to 13.5 and a hypochlorous acid having a pH of 3 to 7.5. Since sterilizing water is generated, a relatively small amount of water can be electrolyzed to generate a large amount of desired strong alkaline water and hypochlorite sterilizing water. In addition, strong alkaline water having a pH of 10.5 to 13.5 and p
Hypochlorous acid disinfecting water of H3 to 7.5 can be generated at the same time, so when strong alkaline water and hypochlorous acid disinfecting water are required simultaneously or continuously as in washing and disinfecting dishes. It can be supplied quickly at low cost.

Further, the strongly acidic water generated in the anode chamber is divided into a strongly acidic water containing a large amount of chlorine gas and a strongly acidic water containing a small amount of chlorine gas. Since the chloric acid sterilizing water is generated, it can be adjusted to various types of hypochlorous acid sterilizing water in which the pH and the concentration of hypochlorous acid are slightly changed.

Further, by separately mixing a chlorine gas component for producing hypochlorous acid and a hydrochloric acid component for pH adjustment in dilution water, the pH of the hypochlorous acid sterilizing water and the hypochlorous acid are adjusted. Since the concentration can be adjusted individually, the pH
It becomes possible to widely adjust the hypochlorous acid concentration of the hypochlorous acid sterilizing water of ~ 7.5 from a low concentration to a high concentration of 200 ppm or more.

In the present invention, the pH value of the hypochlorous acid sterilizing water can be easily maintained at pH 3 to 7.5 even when the concentration of hypochlorous acid is increased.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an example of an apparatus for performing a method of the present invention.

FIG. 2 is a schematic configuration diagram showing an example of an apparatus for performing another method of the present invention.

FIG. 3 is a schematic configuration diagram showing an example of an apparatus for performing still another method of the present invention.

FIG. 4 is a schematic configuration diagram showing an example of an apparatus for implementing still another method of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Electrolysis tank 2 ... Negative electrode 3 ... Positive electrode 4 ... Electrolysis diaphragm 5 ... Cathode chamber 6 ... Anode chamber 7 ... Raw water supply pipe 7a ... Water supply pipe 8,9 ... Discharge path 10,13,28,32,33 ... Pump 11 ... Chemical liquid pump 12 ... Chemical liquid supply pipe 14 ... Dilution water supply pipe 14a, 14b ... Dilution branch pipe 15 ... Flow path switching valve 16a, 16b ... Drain pipe 17 ... Second strong acid water drain pipe 18 ... Gas absorption reaction tank DESCRIPTION OF SYMBOLS 20 ... Branch 21 ... Base outlet 22 ... Chlorine gas reservoir 23, 24 ... Flow control mechanism 25 ... Drain branch pipe 26 ... Flow control valve 27 ... Treatment tank 29 ... Pipe line 30 ... Flow path switching valve 31 ... Drain pipe 34 … Pipe

Claims (4)

[Claims] An aqueous solution containing a chloride salt such as sodium chloride is electrolyzed in a diaphragm electrolyzer, and a pH of 10.
Producing a strong alkaline water of 5 to 13.5, or
The strong alkaline water generated in the cathode chamber is mixed with water to adjust the pH to 1
While adjusting to a strong alkaline water of 0.5 to 13.5,
Strongly alkaline water comprising generating strongly acidic water containing chlorine gas from an anode chamber, and mixing the strongly acidic water containing chlorine gas with water to adjust the pH to a hypochlorous acid solution having a pH of 3 to 7.5. Method for the simultaneous production of chlorinated and hypochlorous acid sterilized water 2. An aqueous solution containing a chloride salt such as sodium chloride is electrolyzed in a diaphragm electrolyzer, and a pH of 10.
Producing a strong alkaline water of 5 to 13.5, or
The strong alkaline water generated in the cathode chamber is mixed with water to adjust the pH to 1
While adjusting to a strong alkaline water of 0.5 to 13.5,
A strong acid water containing chlorine gas is generated from the anode chamber, and a part of the strong acid water having a relatively small amount of chlorine gas and / or a strong acid water having a relatively large amount of chlorine gas out of the strong acid water containing the chlorine gas. While draining a part of the chlorine gas of the water to the outside of the discharge route of the electrolytic strong acid water, the strong acid water containing a relatively large amount of the chlorine gas is mixed with water to form a hypochlorous acid having a pH of 3 to 7.5. Simultaneous production of strong alkaline water and hypochlorous acid sterilized water characterized by adjusting to water 3. An aqueous solution containing a chloride salt such as sodium chloride is electrolyzed in a diaphragm electrolyzer, and a pH of 10.
Producing a strong alkaline water of 5 to 13.5, or
The strong alkaline water generated in the cathode chamber is mixed with water to adjust the pH to 1
While adjusting to a strong alkaline water of 0.5 to 13.5,
Generate strongly acidic water containing chlorine gas from the anode chamber, and compare this strongly acidic water containing chlorine gas with chlorine gas or strong acid water containing relatively large amount of chlorine gas without or with chlorine gas. Partially separated into strongly acidic water, which does not contain chlorine gas or a relatively small amount of chlorine gas,
And / or while draining a part of the chlorine gas or the chlorine gas of the relatively acidic gas containing a relatively large amount of the chlorine gas out of the discharge line of the electrolytically acidic water, the chlorine gas or the chlorine gas is relatively large. Along with producing hypochlorous acid water by mixing the strongly acidic water containing with the water, a part or all of the strongly acidic water containing no chlorine gas or relatively little chlorine gas drained out of the system, The pH value of the hypochlorous acid water finally produced is adjusted to 3 to 7.5 by adding to the water mixed for the production of the hypochlorous acid water or to the hypochlorous acid water after mixing. Method for Simultaneous Production of Strongly Alkaline Water and Hypochlorite Disinfection Water 4. An aqueous solution containing a chloride salt such as sodium chloride is electrolyzed in a diaphragm electrolyzer, and a pH of 10.
Producing a strong alkaline water of 5 to 13.5, or
The strong alkaline water generated in the cathode chamber is mixed with water to adjust the pH to 1
While adjusting to a strong alkaline water of 0.5 to 13.5,
A strongly acidic water containing chlorine gas is generated from the anode chamber, and a part or all of the strongly acidic water containing chlorine gas generated from the anode chamber is mixed with water.
Add a part of strong alkaline water of 0.5-13.5 to pH
Simultaneous production of strong alkaline water and hypochlorous acid sterilizing water, characterized in that the aqueous solution is adjusted to 3 to 7.5 hypochlorous acid water.