JP5188717B2 - Electrolytic hypochlorite water production equipment - Google Patents

Description

  The present invention relates to an electrolytic hypochlorous water production apparatus, and more particularly, to an electrolytic hypochlorous water production apparatus that generates hypochlorous water by electrolysis of brine.

2. Description of the Related Art Conventionally, an apparatus for producing electrolytic hypochlorous water that adds sodium chloride to raw water and generates an aqueous solution containing hypochlorous acid (hereinafter referred to as hypochlorous water) by electrolysis is known. This apparatus includes an electrolytic cell having a pair of electrodes and a saline solution tank for storing a saline solution. And raw | natural water is thrown in in an electrolytic vessel, the salt solution in a salt solution tank is further added, and a voltage is applied to a pair of said electrode. Then, since the electrolysis of the saline solution occurs, chlorine (Cl ₂ ) is generated at the anode, and the chlorine reacts with water to become hypochlorous acid (HClO), which is further dissolved in water and hypochlorite water and Become. Since this hypochlorous water has strong oxidizing power and sterilizing power, it is used, for example, for sterilizing medical equipment, production lines of food factories, and the like.

By the way, in the electrolytic cell, in addition to the above reaction, side reactions with various ions contained in water occur. At the cathode, carbonate ions are generated by the reaction of hydroxide ions and hydrogen carbonate ions generated by the above reaction. And the calcium ion contained in tap water couple | bonds with the carbonate ion, and insoluble calcium carbonate produces | generates. Furthermore, since the alkalinity increases as electrolysis proceeds, magnesium ions and calcium ions further react with hydroxide ions to produce magnesium hydroxide and calcium hydroxide. These calcium and magnesium compounds adhere to the electrode. On the other hand, in the anode, when the silica (SiO ₂ ) concentration in tap water is high, silica scale is deposited on the electrode by reaction with acidic water generated around the electrode. That is, when the electrolytic cell is used for a long period of time, scales adhere to the electrodes, which causes a problem that the electrolytic efficiency is lowered.

Then, the sterilization apparatus for bathtubs which can remove a scale by switching the polarity of an electrode is known (for example, refer patent document 1). By changing the polarity of the electrode of the electrolytic cell as in this device, the acidity and alkalinity are reversed, so that the scale component that has been attached to the electrode is dissolved and the electrolytic efficiency can be restored. is there.
Japanese Utility Model Publication No. 2-108794

  However, even if the polarity of the electrode of the electrolytic bath of the electrolytic hypochlorous water production apparatus is changed as in the sterilization treatment apparatus for bathtubs described in Patent Document 1, the quality of tap water is not constant and adheres to the electrode. Since the scale amount fluctuates greatly, there is a problem that the polarity switching of the electrodes cannot be continuously performed under the same conditions. Furthermore, since a large amount of current flows due to the charging effect of the electric double layer at the moment of switching the polarity of the electrode, there is a problem that the load applied to the electrode increases and the electrode life is shortened.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an electrolytic hypochlorous water production apparatus capable of preventing scale from adhering to an electrode without changing the polarity of the electrode. And

In order to achieve the above object, an electrolytic hypochlorous water production device according to the first aspect of the present invention filters water supply means for supplying raw water and the raw water supplied from the water supply means with a reverse osmosis membrane. A hypochlorous acid is generated by electrolyzing the filtering means, the saline mixing means for mixing the saline with the filtered water treated by the filtering means, and the mixed water in which the saline is mixed by the saline mixing means Electrolyzing means, and concentrated water mixing means for mixing reverse osmosis concentrated water concentrated by the filtering means with hypochlorous acid in which the hypochlorous acid produced by the electrolyzing means is dissolved.

  In addition to the configuration of the invention according to claim 1, the electrolytic hypochlorite water production apparatus of the invention according to claim 2 takes part of the raw water supplied from the water supply means, Raw water mixing means for mixing with chlorine water is provided.

  In the electrolytic hypochlorous water production apparatus according to the first aspect of the present invention, the raw water supplied from the water supply means is filtered by the reverse osmosis membrane of the filtration means. And the salt solution is mixed with the salt water mixing means with respect to the filtrate which permeate | transmitted the reverse osmosis membrane and the ion was removed. Further, the mixed water mixed with the saline is electrolyzed by the electrolysis means. Thereby, hypochlorous acid is produced | generated, the hypochlorous acid melt | dissolves in water, and hypochlorous water is produced | generated. Here, since ions are previously removed from the mixed water to be electrolyzed, it is possible to prevent the scale from adhering to the electrode even if the polarity is not changed, and the electrolysis efficiency can be stably maintained. Further, the concentrated water concentrated by the reverse osmosis membrane is mixed with hypochlorous water generated by the concentrated water mixing means. Thereby, since concentrated water is not discarded at all, hypochlorous water can be produced without waste.

  Further, in the electrolytic hypochlorous water production apparatus of the invention according to claim 2, in addition to the effect of the invention of claim 1, hypochlorous acid is obtained by mixing a part of raw water with the produced hypochlorous water. Since water can be diluted to a low concentration, it can be safely used for sterilization of medical equipment, production lines of food factories, and the like.

  Hereinafter, an electrolytic hypochlorous water production apparatus 1 according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of an electrolytic hypochlorous water production apparatus 1, FIG. 2 is a table showing the results of a comparative test, and FIG. 3 is a graph showing a change in electrolytic current in the comparative test.

  In addition, the electrolytic hypochlorous water manufacturing apparatus 1 of this embodiment is an apparatus which can produce | generate hypochlorous water by adding salt water to tap water and electrolyzing. And, it is possible to prevent scale from adhering to the pair of anode 31 and cathode 32 provided in the electrolytic cell 7 for performing the electrolytic treatment, and is characterized in that hypochlorous water can be generated efficiently and stably. It is.

  First, a schematic configuration of the electrolytic hypochlorous water production apparatus 1 will be described. As shown in FIG. 1, the electrolytic hypochlorous water production apparatus 1 reverses the activated carbon column 5 that removes residual chlorine and the like of tap water supplied from the tap 2, and tap water pretreated by the activated carbon column 5. A reverse osmosis membrane module 6 that permeates through the osmosis membrane and filters; an electrolytic tank 7 that electrolyzes mixed water obtained by mixing saline with permeate of the reverse osmosis membrane module 6 to generate hypochlorous acid water; It is mainly composed of a salt solution tank 8 for storing a salt solution mixed with water. Then, the hypochlorite water generated in the electrolytic cell 7 is mixed with the concentrated water of the reverse osmosis membrane module 6 and further diluted with a part of the tap water supplied from the faucet 2, for medical equipment and food factory Used for sterilization of production lines.

Next, the piping configuration will be described. A first tap water supply pipe 10 is connected between the faucet 2 and the activated carbon column 5, and a second tap water supply is provided between the activated carbon column 5 and the inlet (not shown) of the reverse osmosis membrane module 6. A tube 11 is connected. Further, a permeate supply pipe 12 is connected between the outlet (not shown) of the reverse osmosis membrane module 6 and the inlet (not shown) of the electrolytic cell 7, and the outlet (not shown) of the electrolytic cell 7. A hypochlorous water supply pipe 13 is connected to the. Then, the downstream end portion of the hypochlorous water supply pipe 13 is connected to the electrolytic hypochlorous water production apparatus 1 of the supply port (not shown). In addition, the first tap water supply pipe 10 is provided between the branch part 21 provided in the middle of the first tap water supply pipe 10 and the mixing part 23 provided in the middle of the hypochlorous water supply pipe 13. A bypass pipe 14 is connected to bypass a part of the flowing tap water and mix the hypochlorous water supply pipe 13 with the flowing hypochlorous water.

  Furthermore, a reverse osmosis membrane module is provided between the concentrated water discharge port (not shown) of the reverse osmosis membrane module 6 and the mixing portion 22 provided upstream of the mixing portion 23 of the hypochlorous water supply pipe 13. A concentrated water supply pipe 15 for mixing the concentrated water discharged from the 6 concentrated water discharge port with the hypochlorous water flowing through the hypochlorous water supply pipe 13 is connected. Further, between the outlet (not shown) of the saline tank 8 and the mixing unit 24 provided in the middle of the permeate supply pipe 12, a saline supply pipe 16 for supplying the saline in the saline tank 8 is connected. In the middle of the saline solution supply pipe 16, a pump 25 is provided for discharging the saline solution in the saline solution tank 8 toward the permeate supply tube 12. Note that the branch portion 21 is a known three-way valve having one inlet and two outlets. Furthermore, the mixing parts 22 and 23 are known three-way valves having two inlets and one outlet.

  Next, the activated carbon column 5 will be described. This activated carbon column 5 is a cylindrical column in which an activated carbon filter (not shown) is sealed, and contains residual chlorine, organic matter, pigment, turbidity, odor, oil, etc. contained in tap water flowing into the column. Adsorb. The activated carbon column 5 removes residual chlorine in tap water in particular, thereby preventing deterioration of the reverse osmosis membrane housed in the reverse osmosis membrane module 6 described later. That is, the reverse osmosis membrane of the reverse osmosis membrane module 6 is protected.

Next, the reverse osmosis membrane module 6 will be described. This reverse osmosis membrane module 6 is an apparatus for producing pure water by removing ion components in tap water using a reverse osmosis membrane (RO membrane). As the reverse osmosis membrane used in this apparatus, a reverse osmosis membrane of a low pressure membrane that allows permeation of tap water only by tap pressure is applied. The reverse osmosis membrane module 6 can remove about 90% or more of various ions (Ca ²⁺ , Mg ²⁺ ) in tap water only by the tap pressure. The reverse osmosis membrane module 6 is provided with a concentrated water discharge port (not shown) through which concentrated water enriched with impurities such as ions and salts that could not pass through the reverse osmosis membrane is continuously discharged. . The concentrated water discharged from the concentrated water discharge port is mixed with hypochlorous water flowing through the hypochlorous water supply pipe 13 via the concentrated water supply pipe 15.

Next, the electrolytic cell 7 will be described. The permeated water treated by the reverse osmosis membrane module 6 is supplied to the electrolytic cell 7 through the permeated water supply pipe 12. Further, the saline stored in the saline tank 8 flows through the saline supply pipe 16, the mixing unit 24, and the permeate supply pipe 12. And since this electrolytic cell 7 is provided with a pair of anode 31 and cathode 32, when a voltage is applied between this pair of electrodes, the electrolysis of salt water will occur. In the electrolysis of the saline solution, the following reaction occurs, and hypochlorous acid (HClO) is generated.
・ Anode (+) 2Cl ⁻ → Cl ₂ + 2e ⁻
Cl ₂ + 2H ₂ O → 2HClO + H ² ↑
・ Cathode (−) 2H ₂ O + 2e ⁻ → H ² ↑ + OH ⁻
The hypochlorous acid obtained in this way is dissolved in water to form hypochlorous water and flows to the hypochlorous water supply pipe 13.

  Next, the salt solution tank 8 will be described. A saline solution having a salt concentration of 20% is stored in the salt solution tank 8 in advance. Note that the salt solution is preferably one in which salt (NaCl) is dissolved in pure water. Then, by driving the pump 25, the saline in the saline tank 8 is drawn into the saline supply pipe 16 and flows toward the permeate supply pipe 12.

  Next, the production | generation process of the hypochlorous water of the electrolytic hypochlorous water manufacturing apparatus 1 which consists of the said structure is demonstrated. As shown in FIG. 1, first, when the faucet 2 is twisted, tap water flows out at a normal tap pressure. And the tap water which flowed out from the faucet 2 flows through the first tap water supply pipe 10, a part of which flows through the bypass pipe 14 at the branch portion 21, and the rest flows into the activated carbon column 5. That is, the tap water flowing into the activated carbon column 5 is used to generate hypochlorous water, and the tap water flowing to the bypass pipe 14 is used to dilute the hypochlorous water generated later. .

  And the tap water which flowed into the activated carbon column 5 passes an activated carbon filter, and the residual chlorine, organic substance, pigment | dye, turbidity, odor, oil content, etc. which are contained in tap water are removed. Further, the tap water flowing out from the outlet of the activated carbon column 5 flows through the second tap water supply pipe 11 and flows in from the inlet of the reverse osmosis membrane module 6.

Next, the tap water flowing into the reverse osmosis membrane module 6 passes through the reverse osmosis membrane. In the reverse osmosis membrane, about 90% or more of various ions (Ca ²⁺ , Mg ²⁺ ) contained in tap water are removed. Then, the permeated water that has permeated through the reverse osmosis membrane flows out from the outlet of the reverse osmosis membrane module 6 toward the permeated water supply pipe 12. On the other hand, impurities such as various ions and salts that could not permeate the reverse osmosis membrane are concentrated, so that they are continuously discharged from the concentrated water outlet toward the concentrated water supply pipe 15 as concentrated water.

  By the way, the permeated water that has flowed through the permeated water supply pipe 12 flows into the electrolytic cell 7. Further, the pump 25 is driven. Then, the saline stored in the saline tank 8 is drawn into the saline supply pipe 16 and mixed with the permeated water from the mixing unit 24 of the permeated water supply pipe 12. Specifically, by mixing a salt solution having a salt concentration of 20%, the salt concentration is adjusted to be about 2 to 10%. In this way, the electrolytic water 7 is supplied and stored with the mixed water of the permeated water and the saline. Next, a voltage is applied to the anode 31 and the cathode 32 of the electrolytic cell 7. Then, as explained above, electrolytic hypochlorous acid is generated in the liquid and becomes hypochlorous water by dissolving in water. Here, the mixed water electrolyzed in the electrolytic cell 7 is a mixture of salt water and permeated water from which impurities such as ions and silica are removed by the reverse osmosis membrane module 6. Therefore, even if this mixed water is electrolyzed, insoluble calcium carbonate, magnesium hydroxide, or calcium hydroxide is not generated at the cathode 32, and therefore scales of calcium and magnesium do not adhere to the cathode 32. On the other hand, no silica scale is attached to the anode 31. That is, since no scale adheres to any electrode surface of the anode 31 and the cathode 32, the electrolysis efficiency does not decrease for a long time, and hypochlorous acid can be stably generated. Moreover, since it is not necessary to change the polarity of the electrodes as in the conventional product, the load on the anode 31 and the cathode 32 can be reduced.

  Next, hypochlorous water generated in the electrolytic cell 7 flows through the hypochlorous water supply pipe 13. And in the mixing part 22, the concentrated water supplied from the concentrated water supply pipe 15 is mixed. That is, impurities such as ions and silica that hinder the electrolytic treatment are once removed as concentrated water by the reverse osmosis membrane module 6 and are returned to hypochlorous water after the electrolytic treatment is completed. Therefore, in the electrolytic cell 7, it is possible to electrolyze mixed water in a state where there is almost no impurities that cause scale generation, and it is possible to dispense with discarding the concentrated water of the reverse osmosis treatment that has been conventionally discarded. Further, since the concentrated water is returned to the hypochlorous water again, the reverse osmosis membrane module 6 does not need to increase the permeate recovery rate. This reduces the load on the reverse osmosis membrane and reduces the contamination of the membrane surface, so that the lifetime of the reverse osmosis membrane can be extended.

  Further, the tap water that has flowed into the bypass pipe 14 flows into the hypochlorous water supply pipe 15 from the mixing section 23. That is, since tap water can be mixed and appropriately diluted with high-concentration hypochlorous water generated in the electrolytic cell 7, safe and low-concentration hypochlorous water can be efficiently generated. Moreover, since the chlorine concentration of hypochlorous water can be adjusted by adjusting the mixing ratio of the tap water with respect to hypochlorous water, the hypochlorous water from which the chlorine concentration differs according to a use can be used properly.

  Next, a comparative test for demonstrating the electrolytic effect of the electrolytic hypochlorous water production apparatus 1 will be described. First, test conditions will be described. In this comparative test, an electrolytic hypochlorous water production apparatus 1 as a product of the present invention and a conventional electrolytic hypochlorous water production apparatus as a comparative product were prepared. The conventional product is the same activated carbon column 5 as the electrolytic hypochlorous water production apparatus 1 described above, an electrolytic cell 7 provided with an anode 31 and a cathode 32, and a saline solution tank for storing a saline solution supplied to the electrolytic cell 7. 8, the hypochlorite water produced in the electrolytic cell 7 is mixed with a part of tap water before being treated with the activated carbon column 5 and diluted to be supplied to the outside as sterilizing water. And the polarity conversion method which dissolves the scale adhering to the anode 31 and the cathode 32 in a liquid by changing the polarity of the anode 31 and the cathode 32 for every predetermined time is employ | adopted.

The electrolysis conditions are as follows.
Electrolyte salt concentration: 4% (Adjusted with the saline solution in the saline solution tank 8 so that the salt concentration of the mixed water stored in the electrolytic cell 7 was 4%.)
Electrolytic voltage: 5 V (voltage value applied between the anode 31 and the cathode 32)
・ Electrolytic current: 23A
・ Electrolyte flow rate: 2.5 L / min
Raw water quality: pH 6.5, conductivity: 200 μS / cm, Ca hardness: 200 mg / lasCaCO ₃
-Water quality of permeate: pH 5.7, conductivity: 10 μS / cm, Ca hardness: 1 mg / lasCaCO ₃

  In the conventional product, the polarity of the anode 31 and the cathode 32 was changed every 8 hours, and the electrolytic treatment was continued while dissolving the scale attached to the anode 31 and the cathode 32. Moreover, in any electrolytic cell 7 of the product of the present invention and the conventional product, the comparative test was continued until the NaCl consumption reached 100 mg / h. And in order to evaluate the production amount of hypochlorous acid, the production | generation chlorine concentration in the liquid after a test was measured, respectively. The chlorine concentration was measured by a general titration method using sodium thiosulfate. The electrolytic current means a current generated by electrolysis. Note that the electrolysis current at the start of the test was set to 23 A for both the conventional product and the present invention product.

  The result of the comparative test will be described. First, the generated chlorine concentration will be described. As shown in FIG. 2, the chlorine concentration of the conventional product was 4600 mg / l in spite of the NaCl consumption of the present product and the conventional product being the same, whereas the product chlorine concentration of the present product was 4600 mg / l. Was 4700 mg / l. That is, it was found that the product of the present invention produces more hypochlorous acid than the conventional product.

  Next, changes in the electrolytic current will be described. As shown in FIG. 3, in the conventional product, scale gradually adhered to the surfaces of the anode 31 and the cathode 32 as the electrolysis progressed. Along with this, the electrolysis current gradually decreased, and the electrolysis current decreased to about 20 A after 8 hours from the start of the test. And when polarity change was performed when 8 hours passed, the scale adhering to each electrode surface melt | dissolved in the liquid. Furthermore, at the moment when the polarity of the electrode was changed, a large amount of current flowed between the electrodes due to the charging effect of the electric double layer, so that the electrolysis current temporarily increased to around 23 A. However, after that, the scale begins to adhere again to the surfaces of the anode 31 and the cathode 32 whose polarity has been changed, and accordingly, the electrolysis current also decreases in the same manner as described above, and at the time of recovery after 8 hours from the previous polarity change. About 3A lower than the above. And when polarity change was performed again after 8 hours passed from the time of the last polarity change, the electrolysis current rose temporarily at once, but fell again like the last time. And although the electrolysis current returned temporarily every 8 hours, the degree of the recovery gradually weakened and gradually showed a decreasing tendency. That is, in the conventional product, since a large current flows between the anode 31 and the cathode 32 every 8 hours, an excessive load is applied to the anode 31 and the cathode 32, the electrolysis efficiency is lowered, and the electrolysis current is gradually lowered. It is guessed.

On the other hand, in the product of the present invention, since the mixed water obtained by mixing the reverse osmosis water of the reverse osmosis membrane module 6 with the saline is electrolyzed in the electrolytic cell 7, the scale is hardly attached to the anode 31 and the cathode 32, and the electrolysis is performed. The current remained almost unchanged at 23A. The reason why the calcium scale hardly adhered to the cathode 32 is presumed to be that there was almost no calcium ion in the liquid because the Ca hardness of the reverse osmosis water measured was 1 mg / lasCaCO ₃ . In addition, since the conductivity was 10 μS / cm, it is presumed that most of the ions in the liquid were removed by the reverse osmosis membrane module 6. In addition, it is presumed that the silica scale did not adhere to the anode 31 because the silica was almost removed by reverse osmosis.

From the above result, in the conventional product, the electrolysis current to the anode 31 and the cathode 32 flows through a large amount for each polarity conversion, the load to the anode 31 and cathode 32 are borrowed either is presumed that led to decrease in the electrolysis efficiency . In addition, although the electrolysis current temporarily rises every time the polarity is changed, the scales adhere to the anode 31 and the cathode 32, so that the electrolysis efficiency is reduced and the ability to produce electrolytic hypochlorous acid is reduced. Is done. In contrast, the product of the present invention has a very low impurity concentration (for example, calcium ion concentration, silica concentration) such as various ions of mixed water electrolyzed in the electrolytic cell 7, so that the anode 31 and the cathode It is possible to prevent the scale from adhering to 32. Thereby, since the electrolysis efficiency in the electrolytic cell 7 does not fall, it is estimated that the production | generation capability of electrolytic hypochlorous acid was able to be maintained. In addition, unlike the conventional product, since there is no need to change the polarity of the electrodes, the electrolytic treatment can be easily continued. Further, since the polarity of the electrode is not changed, no load is applied to the anode 31 and the cathode 32, so that the electrode life can be extended. Therefore, as shown in FIG. 2, the product of the present invention can continuously perform a stable electrolytic treatment for a long period of time, and can increase the amount of electrolytic hypochlorous acid produced, as compared with the conventional product.

  In the above description, the first tap water supply pipe 10 and the second tap water supply pipe 11 shown in FIG. 1 correspond to the “water supply means” of the present invention, and the reverse osmosis membrane module 6 corresponds to the “filtration” of the present invention. The salt water tank 8, the salt water supply pipe 16, the pump 25, and the mixing unit 24 correspond to the “saline water mixing means” of the present invention, and the electrolytic cell 7 including the pair of the anode 31 and the cathode 32 is provided. The concentrated water supply pipe 15 and the mixing unit 22 correspond to the “concentrated water mixing unit” of the present invention, and the bypass pipe 14 and the mixing unit 23 correspond to the “raw water mixing unit” of the present invention. It corresponds to.

As described above, in the electrolytic hypochlorous water production apparatus 1 of the present embodiment, tap water is first treated with a reverse osmosis membrane, and the permeated water is mixed with saline and electrolyzed in the electrolytic cell 7. The scale can be prevented from adhering to the anode 31 and the cathode 32 of the electrolytic cell 7, and the electrolysis efficiency can be maintained. Thereby, compared with the conventional product which does not perform reverse osmosis processing, the production amount of electrolytic hypochlorous acid can be increased. Furthermore, since the concentrated water produced by the reverse osmosis membrane module 6 is mixed again with the hypochlorous water supplied from the electrolytic cell 7, it is not necessary to throw away the concentrated water of the reverse osmosis treatment that has been conventionally discarded. Can do. Further, because Star back again concentrated water hypochlorous water, the reverse osmosis membrane module 6, there is no need to increase the recovery rate of the permeate. This reduces the load on the reverse osmosis membrane and reduces the contamination of the membrane surface, so that the lifetime of the reverse osmosis membrane can be extended. Moreover, the load concerning a reverse osmosis membrane can be reduced by flowing a part of the tap water which flows out out of a tap water to the bypass pipe 14. FIG. Further, by diverting tap water to the bypass pipe 14, tap water can be mixed with high-concentration hypochlorous water and appropriately diluted, so that safe and low-concentration hypochlorous water can be efficiently generated. .

  Needless to say, the electrolytic hypochlorous water production apparatus of the present invention is not limited to the above embodiment, and various modifications are possible. For example, in the said embodiment, although tap water was used as raw | natural water, it is applicable also to well water. Well water is pumped up by a pump, and it is only necessary to allow the reverse osmosis membrane of the reverse osmosis membrane module 6 to pass through only the discharge pressure of the pump.

  The electrolytic hypochlorous water production apparatus of the present invention can be used for the purpose of using sterilized water for sterilizing medical equipment, food factory lines, finger washing, and the like.

It is a block diagram which shows the structure of the electrolytic hypochlorous water manufacturing apparatus. It is a table | surface which shows the result of a comparative test. It is a graph which shows the change of the electrolysis current in a comparative test.

DESCRIPTION OF SYMBOLS 1 Electrolytic hypochlorous water manufacturing apparatus 5 Activated carbon column 6 Reverse osmosis membrane module 7 Electrolysis tank 8 Saline tank 10 1st tap water supply pipe 11 2nd tap water supply pipe 12 Permeated water supply pipe 14 Bypass pipe 15 Concentrated water supply pipe 16 Saline supply pipe 22 Mixing unit 23 Mixing unit 24 Mixing unit 31 Anode 32 Cathode

Claims (2)

Water supply means for supplying raw water;
Filtration means for filtering the raw water supplied from the water supply means with a reverse osmosis membrane;
A saline mixing means for mixing saline with the filtrate treated by the filtering means;
Electrolysis means for electrolyzing the mixed water mixed with the saline by the saline mixing means to generate hypochlorous acid,
Concentrated water mixing means for mixing reverse osmosis concentrated water concentrated by the filtration means with hypochlorous acid in which the hypochlorous acid produced by the electrolysis means is dissolved. Chlorine water production equipment.   2. The apparatus for producing electrolytic hypochlorous water according to claim 1, further comprising raw water mixing means for taking a part of the raw water supplied from the water supply means and mixing it with the hypochlorous water. .

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