WO2023106079A1 - Slightly acidic electrolyzed water activation treatment device, slightly acidic electrolyzed water production system, method for producing slightly acidic electrolyzed water, and method for activating slightly acidic electrolyzed water - Google Patents
Slightly acidic electrolyzed water activation treatment device, slightly acidic electrolyzed water production system, method for producing slightly acidic electrolyzed water, and method for activating slightly acidic electrolyzed water Download PDFInfo
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- WO2023106079A1 WO2023106079A1 PCT/JP2022/043057 JP2022043057W WO2023106079A1 WO 2023106079 A1 WO2023106079 A1 WO 2023106079A1 JP 2022043057 W JP2022043057 W JP 2022043057W WO 2023106079 A1 WO2023106079 A1 WO 2023106079A1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
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- the present invention relates to a slightly acidic electrolyzed water activation treatment device, a slightly acidic electrolyzed water generating system, a slightly acidic electrolyzed water production method, and a slightly acidic electrolyzed water activation method.
- alcohol In order to prevent the spread of infectious diseases such as the new coronavirus, it is important to disinfect objects that have been touched by unspecified people, and alcohol has been widely used for this purpose. However, alcohol may cause rough skin when it comes into contact with human skin, and is highly irritating and flammable, making it difficult to diffuse into the air.
- hypochlorous acid water can also be used for sterilization.
- slightly acidic hypochlorous acid water with a pH of 5.0 to 6.5 is less likely to cause rough skin, and is mild and non-flammable, so there is little harm even if it is dispersed in the air with a sprayer or humidifier.
- Disinfection and sterilization using hypochlorous acid water are disclosed on the website of the Ministry of Health, Labor and Welfare, for example, as described in Non-Patent Document 1 below.
- hypochlorous acid water can generally be produced as electrolyzed water by adding an electrolyte containing chlorine (for example, sodium chloride) to water and performing electrolysis.
- an electrolyte containing chlorine for example, sodium chloride
- hypochlorous acid in the electrolyzed water has a problem that it decomposes over time, that is, the expiration date as electrolyzed water is short.
- hypochlorous acid reacts with the cations (e.g. sodium ions) ionized from the electrolyte to form hypochlorite (e.g. sodium hypochlorite). It becomes easy to arise. Unlike hypochlorous acid itself, many hypochlorites are highly toxic, and there is also the issue of having to reduce electrolytes as much as possible.
- cations e.g. sodium ions
- the present invention provides a slightly acidic electrolyzed water activation treatment device, a slightly acidic electrolyzed water generation system, a slightly acidic electrolyzed water production method, and a slightly acidic electrolyzed water production system that can easily adjust a higher hypochlorous acid concentration and pH.
- An object of the present invention is to provide a method for activating acidic electrolyzed water.
- the present inventors have made intensive studies on the above problems, and found that by stirring the slightly acidic electrolyzed water once generated while performing electrolysis, a higher hypochlorous acid concentration and pH adjustment are facilitated. We discovered that it is possible, and came to complete the present invention.
- a slightly acidic electrolyzed water generating system includes a storage tank for storing slightly acidic electrolyzed water, and slightly acidic electrolyzed water activation treatment for activating the slightly acidic electrolyzed water stored in the storage tank. a device;
- the slightly acidic electrolyzed water generator is provided, and the storage tank stores the slightly acidic electrolyzed water generated by the slightly acidic electrolyzed water generator. .
- a return pipe for returning the slightly acidic electrolyzed water activated by the slightly acidic electrolyzed water activation treatment device to the storage tank.
- the slightly acidic electrolyzed water generator add dilute hydrochloric acid to tap water to generate slightly acidic electrolyzed water.
- a first detection means that is installed in the storage tank and detects at least one of the chlorine concentration and pH of the slightly acidic electrolyzed water in the storage tank, and the detection means. and a means for sending water to the slightly acidic electrolyzed water activation treatment device when the chlorine concentration and pH values obtained are out of the predetermined ranges.
- the slightly acidic electrolyzed water activation treatment apparatus preferably includes a pair of electrodes for electrolyzing the slightly acidic electrolyzed water and a stirring member for stirring the slightly acidic electrolyzed water.
- a method for producing slightly acidic electrolyzed water according to another aspect of the present invention includes the steps of generating slightly acidic electrolyzed water, storing the slightly acidic electrolyzed water, and further electrolyzing the slightly acidic electrolyzed water. It is.
- a method for activating slightly acidic electrolyzed water according to another aspect of the present invention includes the steps of generating slightly acidic electrolyzed water, storing the slightly acidic electrolyzed water, and further electrolyzing the slightly acidic electrolyzed water. Be prepared.
- a slightly acidic electrolyzed water activation treatment device a slightly acidic electrolyzed water generation system, a slightly acidic electrolyzed water production method, and a slightly acidic electrolyzed water activation that can easily adjust a higher hypochlorous acid concentration and pH can provide a method.
- FIG. 1 is a diagram showing an outline of a slightly acidic electrolyzed water generation system (hereinafter referred to as "this system") S according to this embodiment.
- the system S includes a slightly acidic electrolyzed water generator 1, a storage tank 2 for storing slightly acidic electrolyzed water W generated by the slightly acidic electrolyzed water generator 1, and storage in the storage tank 2. a slightly acidic electrolyzed water activation treatment device 3 for performing an activation treatment on the slightly acidic electrolyzed water W thus obtained. It should be noted that the configuration other than this will become clear from the description given later.
- the system S includes a slightly acidic electrolyzed water generator 1.
- the slightly acidic electrolyzed water generator 1 is not limited as long as it can generate slightly acidic electrolyzed water W, but electrolyzes without adding alkali metals and alkaline earth metals as electrolytes to water. It is preferable that the device is capable of generating slightly acidic electrolyzed water at . By not adding an alkali metal as an electrolyte, when hypochlorous acid is generated by electrolysis, the amount of salt that reacts with the alkali metal and becomes a salt can be reduced as much as possible.
- not added means that an unavoidable amount of content contained in the raw material water is allowed, for example, 200 mg or less per liter of ordinary tap water, more preferably It is 100 mg or less, more preferably 50 mg or less.
- the electrolyte to be added is preferably dilute hydrochloric acid.
- the raw material water may be pure water, but tap water may also be used. Tap water already contains a small amount of electrolyte, which functions as an electrolyte that promotes electrolysis. When using tap water, it is preferable to install a first filter F for removing excess metal ions and solids contained in the tap water.
- slightly acidic electrolyzed water refers to water made slightly acidic by adding an electrolyte to water and electrolyzing it, more specifically, hypochlorous acid generated by electrolysis. This is electrolyzed water that exhibits slight acidity by containing acid.
- the term "slightly acidic” refers to an acidic state closer to neutrality than general weak acidity, and specifically refers to a state between pH 5 and 6.5. That is, slightly acidic electrolyzed water is electrolyzed water containing hypochlorous acid produced by electrolysis and having a pH between 5 and 6.5.
- the chlorine concentration of the slightly acidic electrolyzed water W generated by the present system S is preferably 35 ppm or more, although it is not limited. The effect as slightly acidic electrolyzed water can be effectively obtained by making it 35 ppm or more.
- the storage tank 2 for storing the slightly acidic electrolyzed water W generated by the slightly acidic electrolyzed water generator 1 is provided.
- the storage tank 2 By providing the storage tank 2, it is possible to store the generated slightly acidic electrolyzed water W, subdivide it into containers as necessary, and ship it.
- it also serves as a slightly acidic electrolyzed water supply source for the slightly acidic electrolyzed water activation treatment device 3 in the latter stage.
- the slightly acidic electrolyzed water generator 1 and the storage tank 2 are connected by a storage pipe 11, and the slightly acidic electrolyzed water W generated by the slightly acidic electrolyzed water generator 1 is stored in this storage pipe. 11 to the storage tank 2 .
- the slightly acidic electrolyzed water W generated by the slightly acidic electrolyzed water generator 1 may be transported directly to the storage tank 2 through the storage pipe 11, but it may be temporarily stored by providing a filtration tank on the way. may be By passing through the filtration tank, it becomes possible to remove a small amount of solids and the like that are present in the raw material water and that have not been completely removed by the first filter F by sedimentation or filtration.
- water supply means such as a water supply pump, for supplying water to the storage tank 2 in the filtration tank.
- the system S is provided with a detection means 21 which is installed in the storage tank 2 and is capable of detecting at least one of the chlorine concentration and pH of the slightly acidic electrolyzed water W in the storage tank 2, preferably both. is preferred. This makes it possible to detect the condition of the slightly acidic electrolyzed water W in real time.
- the detecting means for detecting pH is preferably, for example, a pH meter, and the chlorine concentration is preferably a chlorine concentration meter.
- the installation position of this detection means 21 it is not limited as long as the situation of the slightly acidic electrolyzed water W in the storage tank 2 can be confirmed. It may be provided in the filling pipe 23 and the filling pipe 41, and furthermore, as shown in the present system S, it may be provided in the control device 5 provided upstream of the filling device 4.
- water level detection means 22 for measuring the water level in the storage tank 2 .
- the slightly acidic electrolyzed water W is not generated any more. It is possible to issue an instruction to generate and supply to the storage tank 2 for control.
- the slightly acidic electrolyzed water W is supplied to the slightly acidic electrolyzed water activation treatment device 3. It is preferred to have water conveying means 24 for conveying. As a result, the chlorine concentration and pH of the slightly acidic electrolyzed water W in the storage tank 2 are suppressed to desired values. of the slightly acidic electrolyzed water W is sent and activated to adjust the value of the slightly acidic electrolyzed water W in the storage tank 2 to a desired range.
- the water supply means 24 is not limited as long as it can send the slightly acidic electrolyzed water W to the slightly acidic electrolyzed water activation treatment device 3, and for example, a water supply pump or the like can be used.
- the storage tank 2 and the slightly acidic electrolyzed water activation treatment device 3 are connected by an activation pipe 23, and the slightly acidic electrolyzed water W stored in the storage tank 2 is is carried to the slightly acidic electrolyzed water activation treatment device 3.
- the activation pipe 23 may be branched on the way and connected to the filling device 4 and the control device 5 provided in the preceding stage. By doing so, it is possible to make the structure compact by sharing the piping for activation treatment and the piping for filling.
- this system S it is also preferable to provide a second filter F in the middle of the activation pipe 23 .
- the second filter F it is possible to remove excess metal ions and solid matter remaining in the storage tank 2 .
- the slightly acidic electrolyzed water activation treatment device 3 in this system S performs activation treatment on the stored slightly acidic electrolyzed water W.
- activation treatment refers to a treatment to increase the chlorine concentration of the slightly acidic electrolyzed water W and a treatment to keep the pH within a desired range.
- the “activation treatment” is a treatment for activating the slightly acidic electrolyzed water W that has already been produced, and is different from the treatment for producing the slightly acidic electrolyzed water W. In that sense, the presence of the storage tank 2 is essential.
- the slightly acidic electrolyzed water activation treatment device 3 of the present system S preferably includes a pair of electrodes 31 for electrolyzing the slightly acidic electrolyzed water W and a stirring member 32 for stirring the slightly acidic electrolyzed water W.
- the slightly acidic electrolyzed water activation processing apparatus 3 naturally includes a storage tank 33 for storing slightly acidic electrolyzed water W, and the slightly acidic electrolyzed water in which the chlorine concentration and pH are outside the desired ranges. W can be accommodated. It is preferable that the stirring member 32 is provided in order to bring the pH into the desired range quickly. It is also possible to omit it.
- the pair of electrodes 31 of the slightly acidic electrolyzed water activation treatment device 3 of this system S are members for further electrolyzing the slightly acidic electrolyzed water W.
- the electrode material of the pair of electrodes 31 can be appropriately adjusted and is not limited, but noble metals such as platinum that are not corroded by chlorine can be exemplified.
- electrolysis is performed using the pair of electrodes 31 in the slightly acidic electrolyzed water activation treatment device 3, so that the pH biased toward the strongly acidic side can be returned to the slightly acidic side. More specifically, the hypochlorous acid in the slightly acidic electrolyzed water W is decomposed over time to produce hydrochloric acid. Slightly acidic electrolyzed water W can be used.
- a device that generates slightly acidic electrolyzed water W without adding alkali metals or the like is a device that assumes water such as tap water that has not been treated as a raw material.
- slightly acidic electrolyzed water activation device 3 is introduced in the present system S, it becomes possible to regenerate the slightly acidic electrolyzed water W by activating it and to increase the chlorine concentration.
- FIG. 2 shows a pair of electrodes 31 and its support structure in this system S.
- the pair of electrodes 31 includes a pair of electrodes 31 and a support structure 311 that supports the pair of electrodes 31 .
- the support structure 311 includes a pair of support plates 3111 formed with holes and arranged outside the pair of electrodes 31, respectively, and a side plate 3112 for securing a distance between the support plates 3111.
- the pair of electrodes 31 is naturally preferably connected to an external power supply device 34 .
- an external power supply device 34 By connecting to an external power supply device 34, it is possible to apply a voltage between the pair of electrodes 31 and perform electrolysis again.
- the electric field generated between the pair of electrodes 31 is not limited as long as it can activate the slightly acidic electrolyzed water W.
- the range is preferably 8 A or less, more preferably 12 V/0.7 A or more and 12 V/1.5 A or less.
- the stirring device 32 stirs the slightly acidic electrolyzed water W in the electrolysis treatment.
- electrolysis is performed by the pair of electrodes 31, and the hypochlorous acid in the slightly acidic electrolyzed water W can be uniformly dispersed, which improves the efficiency.
- the structure of the agitating device 32 is not limited as long as it can be agitated. It is preferable to have a blade member 323 with a .
- the stirring device 32 is preferably arranged above the pair of electrodes 31 in the vertical direction. Electrolysis is performed again by the pair of electrodes 31, and bubbles are generated at that time. Since these bubbles move upward in the vertical direction due to buoyancy, placing the stirring device 32 above them has the advantage of enabling more efficient stirring.
- the number of pairs of electrodes 31 in the slightly acidic electrolyzed water activation treatment device 3 is not particularly limited, it is preferable to have a plurality of electrodes 31 in order to increase the contact area with the slightly acidic electrolyzed water W. . By doing so, it becomes possible to activate the slightly acidic electrolyzed water W more efficiently.
- the number can be appropriately adjusted according to the internal volume of the slightly acidic electrolyzed water activation treatment device 3, but may be 2 or more, specifically 2 or more and 10 or less, preferably 2 or more and 10 or less. 5 or less.
- the system S preferably includes a return pipe 35 for returning the slightly acidic electrolyzed water W activated by the slightly acidic electrolyzed water activation treatment device 3 to the storage tank 2 .
- a return pipe 35 for returning the slightly acidic electrolyzed water W activated by the slightly acidic electrolyzed water activation treatment device 3 to the storage tank 2 .
- this system S it is also preferable to provide a third filter F in the middle of the return pipe 35.
- the third filter F it is possible to remove excess metal ions and solid matter remaining in the slightly acidic electrolyzed water activation treatment device 3 .
- the present system S is provided with a filling pipe 41 and a filling device 4 connected to the storage tank 2, so that the subdivided container C can be filled with the slightly acidic electrolyzed water W from the storage tank 2 in the required amount.
- the filling pipe 41 may be partly shared with the return pipe 35 and the activation pipe 23 described above. By making them common, the number of pipes can be reduced and the installation space of the system S can be reduced.
- a control device 5 is provided in the preceding stage of the filling device 4 .
- the control device 5 is connected to the detection means 21 to monitor the pH and chlorine concentration, and is also connected to the water level detection means 22 to detect the water level in the storage tank 2.
- the electrolyzed water generator 1 can be driven to generate slightly acidic electrolyzed water W, and the slightly acidic electrolyzed water activation treatment device 3 can be driven as necessary to control the pH and chlorine concentration.
- the present production method includes (S1) the step of generating slightly acidic electrolyzed water, (S2) the step of storing slightly acidic electrolyzed water, and (S3) further electrolyzing the slightly acidic electrolyzed water. step.
- the slightly acidic electrolyzed water is generated, it is stored once, and the stored slightly acidic electrolyzed water is further stirred and electrolyzed to activate the slightly acidic electrolyzed water.
- this activation method is achieved.
- this production method has (S1) a step of generating slightly acidic electrolyzed water.
- the slightly acidic electrolyzed water produced here is produced by the slightly acidic electrolyzed water device as described above.
- this production method has (S2) a step of storing slightly acidic electrolyzed water. This is a step of sending slightly acidic electrolyzed water to a storage tank through a storage pipe and storing it.
- this production method has (S3) a step of further electrolyzing the slightly acidic electrolyzed water.
- This is a step performed by the slightly acidic electrolyzed water activation treatment device, and when the chlorine concentration or pH of the slightly acidic electrolyzed water stored in the storage tank is outside the predetermined range, it is adjusted to within the predetermined range. It is very useful in that it can be accommodated. In this case, it is preferable to perform the stirring process in parallel. Combining electrolysis and stirring enables more efficient activation treatment. In addition, it is preferable to provide a stirring member in order to quickly keep the pH within a desired range. is also possible.
- this production method includes a step of filling subdivided containers C with the slightly acidic electrolyzed water W for sale. This makes it possible to take out the slightly acidic electrolyzed water W in the storage tank 2 to the outside.
- a slightly acidic electrolyzed water activation treatment device a slightly acidic electrolyzed water generation system, a slightly acidic electrolyzed water production method, and a slightly acidic electrolyzed water activity that can easily adjust a higher hypochlorous acid concentration and pH method can be provided.
- slightly acidic electrolyzed water generation system according to the above embodiment was actually manufactured, and its effect was confirmed. It is explained below.
- a slightly acidic electrolyzed water generator manufactured by Hokuetsu, AP-600W
- a storage pipe was connected to it so that slightly acidic electrolyzed water could be stored in a storage tank (made of polyethylene, 2000L).
- one end of the activation pipe was connected to the storage tank, and the other end was connected to the activation tank (made of polyethylene, 2000L).
- An electrolyzer equipped with a pair of electrodes and a stirrer were installed in the activation tank.
- a return pipe was connected between the activation tank and the storage tank.
- a filling pipe was further connected to the activation tank, and a control device and a filling device were connected so that the slightly acidic electrolyzed water could be discharged to the outside of the system.
- the generated slightly acidic electrolyzed water was allowed to stand for 90 days. After this standing, the pH of the slightly acidic electrolyzed water was 4.8, and the chlorine concentration was also lowered to 35 ppm.
- slightly acidic electrolyzed water was put into the slightly acidic electrolyzed water activation device and activated.
- bubbles are generated by electrolysis, and are activated by stirring them with a stirring device, increasing the chlorine concentration to 55 ppm and bringing the pH back into the desired range of 6.5. confirmed.
- slightly acidic electrolyzed water having a chlorine concentration higher than the capacity of the slightly acidic electrolyzed water generator can be produced.
- the present invention has industrial applicability as a slightly acidic electrolyzed water activation treatment device, a slightly acidic electrolyzed water generating system, a slightly acidic electrolyzed water production method, and a slightly acidic electrolyzed water activation method.
Abstract
The purpose of the present invention is to provide: a slightly acidic electrolyzed water activation treatment device and a slightly acidic electrolyzed water production system, each of which can achieve a higher hypochlorous acid concentration easily and enables the adjustment of a pH value easily; a method for producing slightly acidic electrolyzed water; and a method for activating slightly acidic electrolyzed water. The slightly acidic electrolyzed water production system S according to one aspect of the present invention is provided with: a storage tank 2 in which slightly acidic electrolyzed water W is stored; and a slightly acidic electrolyzed water activation treatment device 3 for performing an activation treatment for the slightly acidic electrolyzed water stored in the storage tank. The slightly acidic electrolyzed water activation treatment device according to another aspect of the present invention is provided with: a pair of electrodes 31 for electrolyzing slightly acidic electrolyzed water; and a stirring member 32 for stirring the slightly acidic electrolyzed water. Each of the method for producing slightly acidic electrolyzed water and the method for activating slightly acidic electrolyzed water according to another aspect of the present invention comprises: a step for producing slightly acidic electrolyzed water; a step for storing the slightly acidic electrolyzed water; and a step for further electrolyzing the slightly acidic electrolyzed water.
Description
本発明は、微酸性電解水活性処理装置及び微酸性電解水生成システム並びに微酸性電解水製造方法及び微酸性電解水活性化方法に関する。
The present invention relates to a slightly acidic electrolyzed water activation treatment device, a slightly acidic electrolyzed water generating system, a slightly acidic electrolyzed water production method, and a slightly acidic electrolyzed water activation method.
新型コロナウイルス等の感染症の拡大を防止するためには不特定の人が触れた物に対する除菌が重要であり、そのためにアルコールが広く用いられてきている。しかしながら、アルコールは人の肌に触れた場合、肌荒れの原因となる可能性があり、また、刺激が強く、引火性もあるため空気中に拡散させることが難しいといった課題がある。
In order to prevent the spread of infectious diseases such as the new coronavirus, it is important to disinfect objects that have been touched by unspecified people, and alcohol has been widely used for this purpose. However, alcohol may cause rough skin when it comes into contact with human skin, and is highly irritating and flammable, making it difficult to diffuse into the air.
一方で、アルコールとは別に、次亜塩素酸水も除菌に用いることができる。その中でも特にｐＨ５．０～６．５の微酸性次亜塩素酸水は肌荒れのおそれが少なく、また、低刺激で引火性もないため噴霧器や加湿器によって空気中に拡散させても害が少ないといった利点がある。なお、上記次亜塩素酸水による消毒・除菌については、例えば下記非特許文献１に記載のように、厚生労働省のホームページにおいて開示がある。
On the other hand, apart from alcohol, hypochlorous acid water can also be used for sterilization. Among them, slightly acidic hypochlorous acid water with a pH of 5.0 to 6.5 is less likely to cause rough skin, and is mild and non-flammable, so there is little harm even if it is dispersed in the air with a sprayer or humidifier. There are advantages such as Disinfection and sterilization using hypochlorous acid water are disclosed on the website of the Ministry of Health, Labor and Welfare, for example, as described in Non-Patent Document 1 below.
ところで、次亜塩素酸水は、一般に塩素を含む電解質（例えば塩化ナトリウム）を水に添加して電気分解を行うことで電解水として製造可能である。
By the way, hypochlorous acid water can generally be produced as electrolyzed water by adding an electrolyte containing chlorine (for example, sodium chloride) to water and performing electrolysis.
しかしながら、上記電解水中の次亜塩素酸は、時間経過等によって分解してしまうといった課題、すなわち電解水としての使用期限が短いといった課題がある。
However, the hypochlorous acid in the electrolyzed water has a problem that it decomposes over time, that is, the expiration date as electrolyzed water is short.
また、電解質の量が多く含まれている場合、生成した次亜塩素酸と、電解質から電離した陽イオン（例えばナトリウムイオン）が反応し、次亜塩素酸塩（例えば次亜塩素酸ナトリウム）が生じやすくなってしまう。次亜塩素酸塩は次亜塩素酸そのものとは異なり毒性が強いものが多く、できる限り電解質を少なくしなければならないといった課題もある。
Also, if the amount of electrolyte is large, the generated hypochlorous acid reacts with the cations (e.g. sodium ions) ionized from the electrolyte to form hypochlorite (e.g. sodium hypochlorite). It becomes easy to arise. Unlike hypochlorous acid itself, many hypochlorites are highly toxic, and there is also the issue of having to reduce electrolytes as much as possible.
また上記の課題に対し、電解質に希塩酸を採用することで、次亜塩素酸塩の生成を抑えながら次亜塩素酸を含む電解水を製造しようとする技術が、例えば特許第６６４８３９０号公報に記載されているが、電解質が少ない分、次亜塩素酸の濃度を高くすることや次亜塩素酸水のｐＨ調整が容易ではないといった課題がある。
In addition, in response to the above problems, a technique for producing electrolyzed water containing hypochlorous acid while suppressing the generation of hypochlorite by adopting dilute hydrochloric acid as an electrolyte is described in, for example, Japanese Patent No. 6648390. However, due to the small amount of electrolyte, there are problems such as increasing the concentration of hypochlorous acid and adjusting the pH of hypochlorous acid water.
そこで、本発明は、上記課題に鑑み、より高い次亜塩素酸濃度とｐＨ調整を容易に可能とする微酸性電解水活性処理装置及び微酸性電解水生成システム並びに微酸性電解水製造方法及び微酸性電解水活性化方法を提供することを目的とする。
Therefore, in view of the above problems, the present invention provides a slightly acidic electrolyzed water activation treatment device, a slightly acidic electrolyzed water generation system, a slightly acidic electrolyzed water production method, and a slightly acidic electrolyzed water production system that can easily adjust a higher hypochlorous acid concentration and pH. An object of the present invention is to provide a method for activating acidic electrolyzed water.
本発明者は、上記課題について鋭意検討を行っていたところ、一度生成した微酸性電解水に対し、電気分解を行いながら撹拌することで、より高い次亜塩素酸濃度とｐＨ調整を容易とすることができることを発見し、本発明を完成させるに至った。
The present inventors have made intensive studies on the above problems, and found that by stirring the slightly acidic electrolyzed water once generated while performing electrolysis, a higher hypochlorous acid concentration and pH adjustment are facilitated. We discovered that it is possible, and came to complete the present invention.
すなわち、本発明の一観点に係る微酸性電解水生成システムは、微酸性電解水を貯留する貯留タンクと、貯留タンクに貯留された微酸性電解水に対し活性処理を行う微酸性電解水活性処理装置と、を備える。
That is, a slightly acidic electrolyzed water generating system according to one aspect of the present invention includes a storage tank for storing slightly acidic electrolyzed water, and slightly acidic electrolyzed water activation treatment for activating the slightly acidic electrolyzed water stored in the storage tank. a device;
また、本観点において、限定されるわけでは無いが、微酸性電解水生成装置を備え、貯留タンクは、微酸性電解水生成装置により生成された微酸性電解水を貯留するものであることが好ましい。
From this point of view, although not limited, it is preferable that the slightly acidic electrolyzed water generator is provided, and the storage tank stores the slightly acidic electrolyzed water generated by the slightly acidic electrolyzed water generator. .
また、本観点において、限定されるわけではないが、微酸性電解水活性処理装置によって活性化された微酸性電解水を貯留タンクに戻すための返し配管を備えることが好ましい。
In addition, from this point of view, although not limited, it is preferable to provide a return pipe for returning the slightly acidic electrolyzed water activated by the slightly acidic electrolyzed water activation treatment device to the storage tank.
また、本観点において、限定されるわけではないが、微酸性電解水生成装置は、水道水に希塩酸を添加して微酸性電解水を生成することが好ましい。
In addition, from this point of view, although not limited, it is preferable that the slightly acidic electrolyzed water generator add dilute hydrochloric acid to tap water to generate slightly acidic electrolyzed water.
また、本観点において、限定されるわけではないが、貯留タンクに設置され貯留タンク内の微酸性電解水の塩素濃度及びｐＨの少なくともいずれかを検出する第一の検出手段と、検出手段が検出した塩素濃度及びｐＨの値が所定の範囲を外れた場合に、微酸性電解水活性処理装置に送る送水手段と、を有することが好ましい。
In addition, in this aspect, although not limited, a first detection means that is installed in the storage tank and detects at least one of the chlorine concentration and pH of the slightly acidic electrolyzed water in the storage tank, and the detection means. and a means for sending water to the slightly acidic electrolyzed water activation treatment device when the chlorine concentration and pH values obtained are out of the predetermined ranges.
また、本発明の他の一観点に係る微酸性電解水活性処理装置は、微酸性電解水を電気分解する一対の電極と、微酸性電解水を撹拌する撹拌部材と、を備えることが好ましい。
Further, the slightly acidic electrolyzed water activation treatment apparatus according to another aspect of the present invention preferably includes a pair of electrodes for electrolyzing the slightly acidic electrolyzed water and a stirring member for stirring the slightly acidic electrolyzed water.
また、本発明の他の一観点に係る微酸性電解水製造方法は、微酸性電解水を生成するステップ、微酸性電解水を貯留するステップ、微酸性電解水を更に電気分解するステップ、を備えるものである。
A method for producing slightly acidic electrolyzed water according to another aspect of the present invention includes the steps of generating slightly acidic electrolyzed water, storing the slightly acidic electrolyzed water, and further electrolyzing the slightly acidic electrolyzed water. It is.
また、本発明の他の一観点に係る微酸性電解水活性化方法は、微酸性電解水を生成するステップ、微酸性電解水を貯留するステップ、微酸性電解水を更に電気分解するステップ、を備えるものである。
A method for activating slightly acidic electrolyzed water according to another aspect of the present invention includes the steps of generating slightly acidic electrolyzed water, storing the slightly acidic electrolyzed water, and further electrolyzing the slightly acidic electrolyzed water. Be prepared.
以上、本発明によって、より高い次亜塩素酸濃度とｐＨ調整を容易に可能とする微酸性電解水活性処理装置及び微酸性電解水生成システム並びに微酸性電解水製造方法及び微酸性電解水活性化方法を提供することができる。
As described above, according to the present invention, a slightly acidic electrolyzed water activation treatment device, a slightly acidic electrolyzed water generation system, a slightly acidic electrolyzed water production method, and a slightly acidic electrolyzed water activation that can easily adjust a higher hypochlorous acid concentration and pH can provide a method.
以下、本発明の実施形態について、図面を用いて詳細に説明する。ただし、本発明は多くの異なる形態による実施が可能であり、また以下に示す実施形態、実施例において記載される具体的な例示についても適宜変更及び調整が可能であり、これらに限定されるものではない。
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention can be implemented in many different forms, and the specific examples described in the embodiments and examples shown below can be modified and adjusted as appropriate, and are limited to these. isn't it.
図１は、本実施形態に係る微酸性電解水生成システム（以下「本システム」という。）Ｓの概略を示す図である。
FIG. 1 is a diagram showing an outline of a slightly acidic electrolyzed water generation system (hereinafter referred to as "this system") S according to this embodiment.
本図で示すように、本システムＳは、微酸性電解水生成装置１と、微酸性電解水生成装置１により生成された微酸性電解水Ｗを貯留する貯留タンク２と、貯留タンク２に貯留された微酸性電解水Ｗに対し活性処理を行う微酸性電解水活性処理装置３と、を備える。なお、これ以外の構成については後述の説明により明らかとなる。
As shown in the figure, the system S includes a slightly acidic electrolyzed water generator 1, a storage tank 2 for storing slightly acidic electrolyzed water W generated by the slightly acidic electrolyzed water generator 1, and storage in the storage tank 2. a slightly acidic electrolyzed water activation treatment device 3 for performing an activation treatment on the slightly acidic electrolyzed water W thus obtained. It should be noted that the configuration other than this will become clear from the description given later.
本システムＳによる効果は後述の記載からも明らかとなるが、微酸性電解水生成装置１によって生成した微酸性電解水Ｗを貯留し、さらにそこから微酸性電解水活性処理装置３を通すことによって、その次亜塩素酸の濃度をより高め、ｐＨを微酸性の範囲に抑えることができるようになる。従前は一度生成した微酸性電解水はそのまま保存されるに過ぎなかった微酸性電解水であるが、本システムＳでは、貯留の際変化する濃度やｐＨを改めて活性化させることでより高品質な状態で保存し、出荷することが可能となる。
The effects of this system S will be apparent from the description below, but by storing the slightly acidic electrolyzed water W generated by the slightly acidic electrolyzed water generator 1 and passing it through the slightly acidic electrolyzed water activation treatment device 3 , the concentration of hypochlorous acid can be increased, and the pH can be suppressed to a slightly acidic range. Previously, the slightly acidic electrolyzed water that was once generated was simply stored as it was, but in this system S, the concentration and pH that change during storage are reactivated to produce higher quality. It can be stored and shipped.
まず、本システムＳは、微酸性電解水生成装置１を備える。微酸性電解水生成装置１は、微酸性電解水Ｗの生成が可能である限りにおいて限定されるわけではないが、電解質としてアルカリ金属及びアルカリ土類金属を水に添加せずに電気分解することで微酸性電解水を生成することができる装置であることが好ましい。電解質としてアルカリ金属を添加しないようにすることで、電気分解によって次亜塩素酸が生成した場合に、アルカリ金属と反応して塩になってしまう量を可能な限り少なくすることができる。なお、ここで「添加せず」とは、原料とする水に含まれる不可避的な程度の含有量は許容するという意味であり、例えば一般の水道水１リットル当たり２００ｍｇ以下であり、より好ましくは１００ｍｇ以下、さらに好ましくは５０ｍｇ以下である。一方で、添加する電解質としては希塩酸であることが好ましい。希塩酸を用いることで、アルカリ金属を添加することなく次亜塩素酸の原材料となる塩素を含ませることが可能となるといった利点がある。
First, the system S includes a slightly acidic electrolyzed water generator 1. The slightly acidic electrolyzed water generator 1 is not limited as long as it can generate slightly acidic electrolyzed water W, but electrolyzes without adding alkali metals and alkaline earth metals as electrolytes to water. It is preferable that the device is capable of generating slightly acidic electrolyzed water at . By not adding an alkali metal as an electrolyte, when hypochlorous acid is generated by electrolysis, the amount of salt that reacts with the alkali metal and becomes a salt can be reduced as much as possible. Here, "not added" means that an unavoidable amount of content contained in the raw material water is allowed, for example, 200 mg or less per liter of ordinary tap water, more preferably It is 100 mg or less, more preferably 50 mg or less. On the other hand, the electrolyte to be added is preferably dilute hydrochloric acid. By using dilute hydrochloric acid, there is an advantage that chlorine, which is a raw material for hypochlorous acid, can be included without adding an alkali metal.
また、本システムＳの微酸性電解水生成装置１では、原料となる水は、純水であることとしてもよいが、水道水を用いることとしてもよい。水道水にはあらかじめ微量な電解質が含まれており、これが電気分解を促進する電解質として機能する。なお水道水を用いる場合、水道水中に含まれる余分な金属イオンや固形物などを除去するための第一のフィルターＦを設置しておくことが好ましい。
In addition, in the slightly acidic electrolyzed water generator 1 of this system S, the raw material water may be pure water, but tap water may also be used. Tap water already contains a small amount of electrolyte, which functions as an electrolyte that promotes electrolysis. When using tap water, it is preferable to install a first filter F for removing excess metal ions and solids contained in the tap water.
上記の記載からも明らかであるが「微酸性電解水」とは、水に電解質を加えて電気分解することにより微酸性とした水をいい、より具体的には、電気分解によって生じる次亜塩素酸を含むことにより微酸性を示す電解水をいう。また「微酸性」とは一般的な弱酸性よりもさらに中性に近い酸性状態をいい、具体的にｐＨ５～６．５の間の状態をいう。すなわち、微酸性電解水は、電気分解によって生成された次亜塩素酸を含み、ｐＨ５～６．５の間の電解水をいう。また、本システムＳにより生成される微酸性電解水Ｗの塩素濃度としては、限定されるわけでは無いが３５ｐｐｍ以上であることが好ましい。３５ｐｐｍ以上とすることで微酸性電解水としての効果を有効に得ることができる。
As is clear from the above description, "slightly acidic electrolyzed water" refers to water made slightly acidic by adding an electrolyte to water and electrolyzing it, more specifically, hypochlorous acid generated by electrolysis. This is electrolyzed water that exhibits slight acidity by containing acid. The term "slightly acidic" refers to an acidic state closer to neutrality than general weak acidity, and specifically refers to a state between pH 5 and 6.5. That is, slightly acidic electrolyzed water is electrolyzed water containing hypochlorous acid produced by electrolysis and having a pH between 5 and 6.5. Further, the chlorine concentration of the slightly acidic electrolyzed water W generated by the present system S is preferably 35 ppm or more, although it is not limited. The effect as slightly acidic electrolyzed water can be effectively obtained by making it 35 ppm or more.
また、本システムＳにおける上記の通り、微酸性電解水生成装置１により生成された微酸性電解水Ｗを貯留する貯留タンク２を備える。貯留タンク２を設けることで生成された微酸性電解水Ｗを貯留し、必要に応じて容器に小分けし出荷することが可能となる。また後述の記載からも明らかなように、後段の微酸性電解水活性処理装置３における微酸性電解水供給源ともなる。
In addition, as described above in this system S, the storage tank 2 for storing the slightly acidic electrolyzed water W generated by the slightly acidic electrolyzed water generator 1 is provided. By providing the storage tank 2, it is possible to store the generated slightly acidic electrolyzed water W, subdivide it into containers as necessary, and ship it. In addition, as will be apparent from the description below, it also serves as a slightly acidic electrolyzed water supply source for the slightly acidic electrolyzed water activation treatment device 3 in the latter stage.
なお、本システムＳでは、微酸性電解水生成装置１と貯留タンク２は貯留用配管１１によって接続されており、微酸性電解水生成装置１によって生成された微酸性電解水Ｗはこの貯留用配管１１によって貯留タンク２まで運ばれる。
In the present system S, the slightly acidic electrolyzed water generator 1 and the storage tank 2 are connected by a storage pipe 11, and the slightly acidic electrolyzed water W generated by the slightly acidic electrolyzed water generator 1 is stored in this storage pipe. 11 to the storage tank 2 .
また、本システムＳでは、微酸性電解水生成装置１によって生成された微酸性電解水Ｗを直接貯留用配管１１によって貯留タンク２まで運んでもよいが、途中にろ過タンクを設けて一時貯留することとしてもよい。ろ過タンクを介することで原料となる水中に存在し第一のフィルターＦによっても除去しきれなかった微量の固形物などを沈殿やろ過により除去することが可能となる。なおろ過タンクを設ける場合、ろ過タンク内には貯留タンク２まで送水するための送水ポンプ等の送水手段を設けておくことが好ましい。
Further, in the present system S, the slightly acidic electrolyzed water W generated by the slightly acidic electrolyzed water generator 1 may be transported directly to the storage tank 2 through the storage pipe 11, but it may be temporarily stored by providing a filtration tank on the way. may be By passing through the filtration tank, it becomes possible to remove a small amount of solids and the like that are present in the raw material water and that have not been completely removed by the first filter F by sedimentation or filtration. In addition, when providing a filtration tank, it is preferable to provide water supply means, such as a water supply pump, for supplying water to the storage tank 2 in the filtration tank.
また、本システムＳにおいては、貯留タンク２に設置され貯留タンク２内の微酸性電解水Ｗの塩素濃度及びｐＨの少なくともいずれか、好ましくは双方を検出することができる検出手段２１を備えていることが好ましい。これにより微酸性電解水Ｗの状況をリアルタイムで検知することが可能となる。なお、ｐＨを検出する検出手段としては、例えばｐＨメーターであることが好ましく、塩素濃度については、塩素濃度計であることが好ましい。また、この検出手段２１の設置位置についてであるが、貯留タンク２内の微酸性電解水Ｗの状況を確認することができる限りにおいて限定されず、貯留タンク２内ではなく、この後段にある活性化用配管２３、充填用配管４１に設けてもよく、更には、本システムＳで示すように、充填装置４の前段に設けられる制御装置５に設けてもよい。
Further, the system S is provided with a detection means 21 which is installed in the storage tank 2 and is capable of detecting at least one of the chlorine concentration and pH of the slightly acidic electrolyzed water W in the storage tank 2, preferably both. is preferred. This makes it possible to detect the condition of the slightly acidic electrolyzed water W in real time. The detecting means for detecting pH is preferably, for example, a pH meter, and the chlorine concentration is preferably a chlorine concentration meter. In addition, regarding the installation position of this detection means 21, it is not limited as long as the situation of the slightly acidic electrolyzed water W in the storage tank 2 can be confirmed. It may be provided in the filling pipe 23 and the filling pipe 41, and furthermore, as shown in the present system S, it may be provided in the control device 5 provided upstream of the filling device 4.
また、本システムＳにおいては、貯留タンク２内の水位を測定するための水位検出手段２２を設けておくことが好ましい。水位検出手段２２により検出される水位が十分ある場合はこれ以上微酸性電解水Ｗを生成しないようにする一方、水位が下がってきた場合は微酸性電解水生成装置１に微酸性電解水Ｗを生成して貯留タンク２に供給するよう指示を出して制御することが可能となる。
Also, in this system S, it is preferable to provide water level detection means 22 for measuring the water level in the storage tank 2 . When the water level detected by the water level detection means 22 is sufficient, the slightly acidic electrolyzed water W is not generated any more. It is possible to issue an instruction to generate and supply to the storage tank 2 for control.
また、本システムＳでは、上記検出手段２１が検出した塩素濃度及びｐＨの値のうち少なくともいずれかが所定の範囲を外れた場合に、微酸性電解水活性処理装置３に微酸性電解水Ｗを送る送水手段２４を有することが好ましい。これにより、貯留タンク２内の微酸性電解水Ｗの塩素濃度及びｐＨを所望の値に抑える一方、この所望の値から外れた場合、後述の微酸性電解水活性処理装置３に貯留タンク２内の微酸性電解水Ｗを送り、活性化して貯留タンク２内の微酸性電解水Ｗの値を所望の範囲に調整することが可能となる。この送水手段２４としては、微酸性電解水Ｗを微酸性電解水活性処理装置３に送ることができる限りにおいて限定されず、例えば送水ポンプ等を用いることができる。
Further, in the present system S, when at least one of the chlorine concentration and pH values detected by the detection means 21 is out of a predetermined range, the slightly acidic electrolyzed water W is supplied to the slightly acidic electrolyzed water activation treatment device 3. It is preferred to have water conveying means 24 for conveying. As a result, the chlorine concentration and pH of the slightly acidic electrolyzed water W in the storage tank 2 are suppressed to desired values. of the slightly acidic electrolyzed water W is sent and activated to adjust the value of the slightly acidic electrolyzed water W in the storage tank 2 to a desired range. The water supply means 24 is not limited as long as it can send the slightly acidic electrolyzed water W to the slightly acidic electrolyzed water activation treatment device 3, and for example, a water supply pump or the like can be used.
また本システムＳでは、貯留タンク２と微酸性電解水活性処理装置３は活性化用配管２３によって接続されており、貯留タンク２に貯留されている微酸性電解水Ｗはこの活性化用配管２３によって微酸性電解水活性処理装置３まで運ばれる。なお、この活性化用配管２３は途中で分岐され、充填装置４及びこの前段に設けられる制御装置５に接続されるようにしてもよい。このようにすることで、活性処理用の配管と、充填用の配管を共通化してコンパクトな構成とすることが可能である。
In the system S, the storage tank 2 and the slightly acidic electrolyzed water activation treatment device 3 are connected by an activation pipe 23, and the slightly acidic electrolyzed water W stored in the storage tank 2 is is carried to the slightly acidic electrolyzed water activation treatment device 3. The activation pipe 23 may be branched on the way and connected to the filling device 4 and the control device 5 provided in the preceding stage. By doing so, it is possible to make the structure compact by sharing the piping for activation treatment and the piping for filling.
また、本システムＳでは、活性化用配管２３の途中に第二のフィルターＦを設けておくことも好ましい。第二のフィルターＦを設けておくことで、貯留タンク２内に残留する余分な金属イオンや固形物などを除去することが可能となる。
In addition, in this system S, it is also preferable to provide a second filter F in the middle of the activation pipe 23 . By providing the second filter F, it is possible to remove excess metal ions and solid matter remaining in the storage tank 2 .
また、本システムＳにおける微酸性電解水活性処理装置３は、貯留された微酸性電解水Ｗに対し活性処理を行うものである。ここで「活性処理」とは、微酸性電解水Ｗに対して塩素濃度を高める処理、および、ｐＨを所望の範囲に収める処理をいう。またこの記載からも明らかであるが「活性処理」は既に生成された微酸性電解水Ｗを活性化する処理であり、微酸性電解水Ｗを生成する処理とは異なるものである。その意味において貯留タンク２の存在は必須となる。
In addition, the slightly acidic electrolyzed water activation treatment device 3 in this system S performs activation treatment on the stored slightly acidic electrolyzed water W. Here, the term "activation treatment" refers to a treatment to increase the chlorine concentration of the slightly acidic electrolyzed water W and a treatment to keep the pH within a desired range. Further, as is clear from this description, the "activation treatment" is a treatment for activating the slightly acidic electrolyzed water W that has already been produced, and is different from the treatment for producing the slightly acidic electrolyzed water W. In that sense, the presence of the storage tank 2 is essential.
また、本システムＳの微酸性電解水活性処理装置３は、微酸性電解水Ｗを電気分解する一対の電極３１と、微酸性電解水Ｗを撹拌する撹拌部材３２と、を備えることが好ましい。また、微酸性電解水活性処理装置３は当然に、微酸性電解水Ｗを収容する収容タンク３３を備えており、この内部に塩素濃度及びｐＨが所望の範囲外となっている微酸性電解水Ｗを収容することができる。なお、攪拌部材３２は迅速にｐＨを所望の範囲に収めるために設けておくことが好ましいものであるが、比較的時間をかけてもよい場合等においては一対の電極３１だけで攪拌部材３２を省略することも可能である。
Further, the slightly acidic electrolyzed water activation treatment device 3 of the present system S preferably includes a pair of electrodes 31 for electrolyzing the slightly acidic electrolyzed water W and a stirring member 32 for stirring the slightly acidic electrolyzed water W. In addition, the slightly acidic electrolyzed water activation processing apparatus 3 naturally includes a storage tank 33 for storing slightly acidic electrolyzed water W, and the slightly acidic electrolyzed water in which the chlorine concentration and pH are outside the desired ranges. W can be accommodated. It is preferable that the stirring member 32 is provided in order to bring the pH into the desired range quickly. It is also possible to omit it.
本システムＳの微酸性電解水活性処理装置３の一対の電極３１は、微酸性電解水Ｗをさらに電気分解する部材である。一対の電極３１の電極材料については適宜調整可能であり限定されるわけではないが、白金等塩素によって腐食しない貴金属を例示することができる。本システムＳは、微酸性電解水活性処理装置３における一対の電極３１を用いて電気分解することで、強酸性側に偏ったｐＨを微酸性側に戻すことが可能となる。より具体的には、微酸性電解水Ｗ内の次亜塩素酸は時間の経過とともに分解され塩酸を生じさせることになるが、この一対の電極３１による電気分解によってｐＨ及び塩素濃度を調整し再び微酸性電解水Ｗとすることができる。また本システムＳでは、アルカリ金属等の電解質を添加することなく塩酸を電解質として微酸性電解水Ｗを製造する場合において、アルカリ金属等を添加していないため生成する塩素濃度に限界が生じうるものの、本システムＳのように生成後電気分解及び攪拌を行うことで、微酸性電解水生成装置１によって生成された段階の塩素濃度よりも高い塩素濃度を含ませることさえ可能となる。特に、アルカリ金属等を添加せずに微酸性電解水Ｗを生成する装置は、処理を施されていない水道水のような水を原材料として想定した装置であるため、一度貯留した微酸性電解水Ｗを微酸性電解水生成装置１に再度入れることは現状において極めて困難であり想定できない。そのため、劣化してしまった微酸性電解水Ｗを再生することはできず、廃棄するしかなかった。しかしながら、本システムＳでいう微酸性電解水活性処理装置３を導入すると、微酸性電解水Ｗの活性化による再生、更には高塩素濃度化を図ることができるようになる。
The pair of electrodes 31 of the slightly acidic electrolyzed water activation treatment device 3 of this system S are members for further electrolyzing the slightly acidic electrolyzed water W. The electrode material of the pair of electrodes 31 can be appropriately adjusted and is not limited, but noble metals such as platinum that are not corroded by chlorine can be exemplified. In this system S, electrolysis is performed using the pair of electrodes 31 in the slightly acidic electrolyzed water activation treatment device 3, so that the pH biased toward the strongly acidic side can be returned to the slightly acidic side. More specifically, the hypochlorous acid in the slightly acidic electrolyzed water W is decomposed over time to produce hydrochloric acid. Slightly acidic electrolyzed water W can be used. In addition, in this system S, when producing the slightly acidic electrolyzed water W using hydrochloric acid as an electrolyte without adding an electrolyte such as an alkali metal, the concentration of chlorine generated may be limited because no alkali metal or the like is added. , By performing electrolysis and stirring after generation as in this system S, it is even possible to include a chlorine concentration higher than the chlorine concentration at the stage generated by the slightly acidic electrolyzed water generator 1. In particular, a device that generates slightly acidic electrolyzed water W without adding alkali metals or the like is a device that assumes water such as tap water that has not been treated as a raw material. At present, it is extremely difficult to put W back into the slightly acidic electrolyzed water generator 1 and cannot be assumed. Therefore, the slightly acidic electrolyzed water W that has deteriorated cannot be regenerated, and has to be discarded. However, when the slightly acidic electrolyzed water activation device 3 is introduced in the present system S, it becomes possible to regenerate the slightly acidic electrolyzed water W by activating it and to increase the chlorine concentration.
また、限定されるわけではないが、本システムＳの微酸性電解水活性処理装置３の一対の電極３１は、微酸性電解水Ｗ内に配置されるものであるため、塩素等による腐食等に十分に耐えうる構造となっていることが好ましい。図２に本システムＳにおける一対の電極３１及びその支持構造について示す。本図で示すように、一対の電極３１は、一対の電極３１と、この一対の電極３１を支持する支持構造３１１を備えている。また、支持構造３１１は、孔が形成され一対の電極３１のそれぞれ外側に配置される一対の支持板３１１１と、この支持板３１１１の距離を確保するための側板３１１２と、を備えて構成されている。またこの支持板３１１１と側板３１１２は上記の通り塩素等による腐食等に十分耐えうるようにするため、腐食に耐えうる樹脂製のねじを用いるとともに、一対の支持板３１１１と側板３１１２は組み合わされる接続孔と突起が形成され、これらが嵌め合わされるようにして組み立てられている。本システムＳではこのような新構造を採用することで、腐食を防止しつつ安定的に電極を支持することが可能となり、電極用量を倍以上に増加させることが可能となる。
In addition, although not limited, the pair of electrodes 31 of the slightly acidic electrolyzed water activation treatment device 3 of the present system S are arranged in the slightly acidic electrolyzed water W, so they are not subject to corrosion due to chlorine or the like. It is preferable that the structure is sufficiently durable. FIG. 2 shows a pair of electrodes 31 and its support structure in this system S. As shown in FIG. As shown in this figure, the pair of electrodes 31 includes a pair of electrodes 31 and a support structure 311 that supports the pair of electrodes 31 . In addition, the support structure 311 includes a pair of support plates 3111 formed with holes and arranged outside the pair of electrodes 31, respectively, and a side plate 3112 for securing a distance between the support plates 3111. there is In addition, in order to make the support plate 3111 and the side plate 3112 sufficiently resistant to corrosion by chlorine or the like as described above, screws made of resin that can withstand corrosion are used, and the pair of support plate 3111 and the side plate 3112 are connected together. Holes and projections are formed and assembled by fitting them together. By adopting such a new structure in this system S, it becomes possible to stably support the electrodes while preventing corrosion, and it is possible to more than double the electrode dosage.
また、一対の電極３１は、当然、外部の電源装置３４に接続されていることが好ましい。外部の電源装置３４に接続することで、一対の電極３１間に電圧を印加し、再度の電気分解を行うことが可能となる。またこの場合において、一対の電極３１間に生じさせる電場としては、微酸性電解水Ｗを活性化させることができる限りにおいて限定されるわけではないが、例えば１２Ｖ／０．６Ａ以上１２Ｖ／１．８Ａ以下の範囲とすることが好ましく、より好ましくは１２Ｖ／０．７Ａ以上１２Ｖ／１．５Ａ以下の範囲であることがより好ましい。
Also, the pair of electrodes 31 is naturally preferably connected to an external power supply device 34 . By connecting to an external power supply device 34, it is possible to apply a voltage between the pair of electrodes 31 and perform electrolysis again. In this case, the electric field generated between the pair of electrodes 31 is not limited as long as it can activate the slightly acidic electrolyzed water W. The range is preferably 8 A or less, more preferably 12 V/0.7 A or more and 12 V/1.5 A or less.
また、微酸性電解水活性処理装置３において、攪拌装置３２は、上記電解処理において微酸性電解水Ｗを攪拌させるものである。攪拌させることで、一対の電極３１によって電気分解が行われ微酸性電解水Ｗ中の次亜塩素酸を均一に分散させることが可能となり、より効率が良くなる。攪拌装置３２の構造としては、攪拌させることが可能となる限りにおいて限定されるわけではないが、軸部材３２１と、この軸部材３２１を回転させる動力部材３２２と、軸部材３２１の先端に付された羽根部材３２３と、を有するものであることが好ましい。
In addition, in the slightly acidic electrolyzed water activation treatment device 3, the stirring device 32 stirs the slightly acidic electrolyzed water W in the electrolysis treatment. By stirring, electrolysis is performed by the pair of electrodes 31, and the hypochlorous acid in the slightly acidic electrolyzed water W can be uniformly dispersed, which improves the efficiency. The structure of the agitating device 32 is not limited as long as it can be agitated. It is preferable to have a blade member 323 with a .
また、微酸性電解水活性処理装置３において、攪拌装置３２と一対の電極３１の位置関係に関してであるが、攪拌装置３２は、一対の電極３１の鉛直方向上部に配置されていることが好ましい。一対の電極３１によると、再度電気分解が行われることとなり、その際気泡が発生する。この気泡は浮力により鉛直方向上側に移動することになるため、攪拌装置３２をその上部に配置することで、より効率的な攪拌が可能になるといった利点がある。
Regarding the positional relationship between the stirring device 32 and the pair of electrodes 31 in the slightly acidic electrolyzed water activation treatment device 3, the stirring device 32 is preferably arranged above the pair of electrodes 31 in the vertical direction. Electrolysis is performed again by the pair of electrodes 31, and bubbles are generated at that time. Since these bubbles move upward in the vertical direction due to buoyancy, placing the stirring device 32 above them has the advantage of enabling more efficient stirring.
また更に、微酸性電解水活性処理装置３において、一対の電極３１の数は特に制限されるわけではないが、その微酸性電解水Ｗとの接触面積を増やすため、複数備えていることも好ましい。このようにすることでより効率よく微酸性電解水Ｗを活性化することが可能となる。複数設ける場合の数としては、微酸性電解水活性処理装置３の内部の容積に応じて適宜調整可能であるが、２以上であればよく、具体的には２以上１０以下であり、好ましくは５以下である。
Furthermore, although the number of pairs of electrodes 31 in the slightly acidic electrolyzed water activation treatment device 3 is not particularly limited, it is preferable to have a plurality of electrodes 31 in order to increase the contact area with the slightly acidic electrolyzed water W. . By doing so, it becomes possible to activate the slightly acidic electrolyzed water W more efficiently. When a plurality of units are provided, the number can be appropriately adjusted according to the internal volume of the slightly acidic electrolyzed water activation treatment device 3, but may be 2 or more, specifically 2 or more and 10 or less, preferably 2 or more and 10 or less. 5 or less.
また、本システムＳでは、微酸性電解水活性処理装置３によって活性化された微酸性電解水Ｗを貯留タンク２に戻すための返し配管３５を備えることが好ましい。これにより、再び貯留タンク２内に微酸性電解水Ｗを貯留させることが可能となる。特に、今回の活性処理を行った微酸性電解水Ｗを返すことで、微酸性電解水Ｗを所望の範囲のものとすることができる。また、上記の記載から明らかであるが、本システムＳでは、貯留タンク２、活性化用配管２３、微酸性電解水活性処理装置３、返し配管３５によってループが形成されることになる。
In addition, the system S preferably includes a return pipe 35 for returning the slightly acidic electrolyzed water W activated by the slightly acidic electrolyzed water activation treatment device 3 to the storage tank 2 . This makes it possible to store the slightly acidic electrolyzed water W in the storage tank 2 again. In particular, by returning the slightly acidic electrolyzed water W that has undergone the activation treatment this time, the slightly acidic electrolyzed water W can be adjusted to a desired range. As is clear from the above description, in the system S, the storage tank 2, the activation pipe 23, the slightly acidic electrolyzed water activation treatment device 3, and the return pipe 35 form a loop.
また、本システムＳでは、返し配管３５の途中に第三のフィルターＦを設けておくことも好ましい。第三のフィルターＦを設けておくことで、微酸性電解水活性処理装置３内に残留する余分な金属イオンや固形物などを除去することが可能となる。
In addition, in this system S, it is also preferable to provide a third filter F in the middle of the return pipe 35. By providing the third filter F, it is possible to remove excess metal ions and solid matter remaining in the slightly acidic electrolyzed water activation treatment device 3 .
また、本システムＳでは、貯留タンク２に接続される充填用配管４１及び充填装置４を備えており、必要な量だけ貯留タンク２から微酸性電解水Ｗを小分け容器Ｃに充填させることが可能である。この場合において、充填用配管４１は、上記の返し配管３５や活性化用配管２３と一部共通していてもよい。共通化させることで配管数を減らし本システムＳの設置スペースを削減することができるようになる。
In addition, the present system S is provided with a filling pipe 41 and a filling device 4 connected to the storage tank 2, so that the subdivided container C can be filled with the slightly acidic electrolyzed water W from the storage tank 2 in the required amount. is. In this case, the filling pipe 41 may be partly shared with the return pipe 35 and the activation pipe 23 described above. By making them common, the number of pipes can be reduced and the installation space of the system S can be reduced.
また、本システムＳでは、上記充填装置４の前段に制御装置５を設けている。制御装置５を設けることで、検出手段２１に接続してｐＨ及び塩素濃度を監視するとともに、水位検出手段２２にも接続して貯留タンク２内の水位を検出することで必要に応じて微酸性電解水生成装置１を駆動して微酸性電解水Ｗを生成し、また、必要に応じて微酸性電解水活性処理装置３を駆動させてｐＨ及び塩素濃度を制御することができる。
In addition, in this system S, a control device 5 is provided in the preceding stage of the filling device 4 . By providing the control device 5, it is connected to the detection means 21 to monitor the pH and chlorine concentration, and is also connected to the water level detection means 22 to detect the water level in the storage tank 2. The electrolyzed water generator 1 can be driven to generate slightly acidic electrolyzed water W, and the slightly acidic electrolyzed water activation treatment device 3 can be driven as necessary to control the pH and chlorine concentration.
（微酸性電解水製造方法・微酸性電解水活性化方法）
ここで、上記した本システムＳを用いる微酸性電解水製造方法（以下「本製造方法」という。）及び微酸性電解水活性化方法（以下「本活性化方法」という。）について説明する。 (Slightly acidic electrolyzed water production method/Slightly acidic electrolyzed water activation method)
Here, a method for producing slightly acidic electrolyzed water (hereinafter referred to as "this production method") and a method for activating slightly acidic electrolyzed water (hereinafter referred to as "this activation method") using the present system S described above will be described.
ここで、上記した本システムＳを用いる微酸性電解水製造方法（以下「本製造方法」という。）及び微酸性電解水活性化方法（以下「本活性化方法」という。）について説明する。 (Slightly acidic electrolyzed water production method/Slightly acidic electrolyzed water activation method)
Here, a method for producing slightly acidic electrolyzed water (hereinafter referred to as "this production method") and a method for activating slightly acidic electrolyzed water (hereinafter referred to as "this activation method") using the present system S described above will be described.
上記の記載から明らかであるが、本製造方法は、（Ｓ１）微酸性電解水を生成するステップ、（Ｓ２）微酸性電解水を貯留するステップ、（Ｓ３）微酸性電解水を更に電気分解するステップ、を備えるものである。
As is clear from the above description, the present production method includes (S1) the step of generating slightly acidic electrolyzed water, (S2) the step of storing slightly acidic electrolyzed water, and (S3) further electrolyzing the slightly acidic electrolyzed water. step.
本製造方法では、上記の通り、微酸性電解水を生成した後、一度貯留し、その貯留した微酸性電解水に対して更に撹拌及び電気分解を行うことで活性化することにより微酸性電解水として完成させるものであるが、一度製造した微酸性電解水を活性化させる観点に着目すると、本活性化方法となる。
In the present production method, as described above, after the slightly acidic electrolyzed water is generated, it is stored once, and the stored slightly acidic electrolyzed water is further stirred and electrolyzed to activate the slightly acidic electrolyzed water. However, from the viewpoint of activating slightly acidic electrolyzed water once produced, this activation method is achieved.
まず本製造方法は（Ｓ１）微酸性電解水を生成するステップを有する。ここで生成される微酸性電解水は上記の通り、微酸性電解水装置により生成される。
First, this production method has (S1) a step of generating slightly acidic electrolyzed water. The slightly acidic electrolyzed water produced here is produced by the slightly acidic electrolyzed water device as described above.
また、本製造方法は（Ｓ２）微酸性電解水を貯留するステップを有する。これは貯留用配管を介して貯留タンクに微酸性電解水を送り、貯留するステップである。
In addition, this production method has (S2) a step of storing slightly acidic electrolyzed water. This is a step of sending slightly acidic electrolyzed water to a storage tank through a storage pipe and storing it.
また、本製造方法は（Ｓ３）微酸性電解水を更に電気分解するステップを有する。これは、上記微酸性電解水活性処理装置によって行われるステップであり、貯留タンクに貯留された微酸性電解水の塩素濃度やｐＨが所定の範囲外となった場合にこれを所定の範囲内に収めることができる点において非常に有用である。なお、この場合においては、攪拌処理を並行して行うことが好ましい。電気分解と攪拌を一緒に行うことでより効率的な活性処理が可能となる。なお、攪拌部材は迅速にｐＨを所望の範囲に収めるために設けておくことが好ましいものであるが、比較的時間をかけてもよい場合等においては一対の電極だけで攪拌部材を省略することも可能である。
In addition, this production method has (S3) a step of further electrolyzing the slightly acidic electrolyzed water. This is a step performed by the slightly acidic electrolyzed water activation treatment device, and when the chlorine concentration or pH of the slightly acidic electrolyzed water stored in the storage tank is outside the predetermined range, it is adjusted to within the predetermined range. It is very useful in that it can be accommodated. In this case, it is preferable to perform the stirring process in parallel. Combining electrolysis and stirring enables more efficient activation treatment. In addition, it is preferable to provide a stirring member in order to quickly keep the pH within a desired range. is also possible.
また、本製造方法では、微酸性電解水Ｗを販売するために小分け容器Ｃに充填するステップを備えていることが好ましい。これにより、貯留タンク２中の微酸性電解水Ｗを外部に取り出すことが可能となる。
In addition, it is preferable that this production method includes a step of filling subdivided containers C with the slightly acidic electrolyzed water W for sale. This makes it possible to take out the slightly acidic electrolyzed water W in the storage tank 2 to the outside.
以上、本実施形態によって、より高い次亜塩素酸濃度とｐＨ調整を容易に可能とする微酸性電解水活性処理装置及び微酸性電解水生成システム並びに微酸性電解水製造方法及び微酸性電解水活性化方法が提供できる。
As described above, according to the present embodiment, a slightly acidic electrolyzed water activation treatment device, a slightly acidic electrolyzed water generation system, a slightly acidic electrolyzed water production method, and a slightly acidic electrolyzed water activity that can easily adjust a higher hypochlorous acid concentration and pH method can be provided.
ここで、上記実施形態に係る微酸性電解水生成システムについて実際に製造し、その効果を確認した。以下説明する。
Here, the slightly acidic electrolyzed water generation system according to the above embodiment was actually manufactured, and its effect was confirmed. It is explained below.
まず、微酸性電解水生成装置（ホクエツ社製、ＡＰ－６００Ｗ）を設置し、これに貯留用配管を接続し、貯留タンク（ポリエチレン製、２０００Ｌ）に微酸性電解水を貯留できるようにした。
First, a slightly acidic electrolyzed water generator (manufactured by Hokuetsu, AP-600W) was installed, and a storage pipe was connected to it so that slightly acidic electrolyzed water could be stored in a storage tank (made of polyethylene, 2000L).
さらに、上記貯留タンクに活性化用配管の一方を接続し、他方を活性化用タンク（ポリエチレン製、２０００Ｌ）に接続した。またこの活性化用タンク内に、一対の電極を備えた電気分解装置、攪拌装置を設置した。これにより微酸性電解水活性処理装置を構成した。なお、この活性化用タンクと貯留タンクの間には返し配管を接続した。
Furthermore, one end of the activation pipe was connected to the storage tank, and the other end was connected to the activation tank (made of polyethylene, 2000L). An electrolyzer equipped with a pair of electrodes and a stirrer were installed in the activation tank. Thus, a slightly acidic electrolyzed water activation treatment apparatus was constructed. A return pipe was connected between the activation tank and the storage tank.
また、上記活性化用タンクにはさらに充填用配管を接続し、制御装置及び充填装置を接続して微酸性電解水をシステム外部に排出させることができるように設定した。
In addition, a filling pipe was further connected to the activation tank, and a control device and a filling device were connected so that the slightly acidic electrolyzed water could be discharged to the outside of the system.
上記システムを構築した後、実際に水道水を微酸性電解水生成装置に投入し、微酸性電解水を生成した。この結果、微酸性電解水１５００Ｌを得た。なお微酸性電解水生成時においては塩素濃度３９ｐｐｍ、ｐＨ５．５であった。
After building the above system, tap water was actually put into the slightly acidic electrolyzed water generator to generate slightly acidic electrolyzed water. As a result, 1500 L of slightly acidic electrolyzed water was obtained. The chlorine concentration was 39 ppm and the pH was 5.5 when the slightly acidic electrolyzed water was generated.
この生成した微酸性電解水を９０日間静置した。この静置後における微酸性電解水のｐＨは４．８となり、塩素濃度も３５ｐｐｍに下がってしまっていた。
The generated slightly acidic electrolyzed water was allowed to stand for 90 days. After this standing, the pH of the slightly acidic electrolyzed water was 4.8, and the chlorine concentration was also lowered to 35 ppm.
そこで、上記微酸性電解水を微酸性電解水活性装置に投入し、活性処理を行った。この結果、電気分解による泡が生じ、これを攪拌装置により攪拌することで活性化が行われ、塩素濃度を５５ｐｐｍに高めるとともに、ｐＨを６．５と再び所望の範囲に収めることができるのを確認した。とくに、本例によると、微酸性電解水生成装置が生成することができる能力以上の塩素濃度を有する微酸性電解水とすることができるのを確認した。
Therefore, the slightly acidic electrolyzed water was put into the slightly acidic electrolyzed water activation device and activated. As a result, bubbles are generated by electrolysis, and are activated by stirring them with a stirring device, increasing the chlorine concentration to 55 ppm and bringing the pH back into the desired range of 6.5. confirmed. In particular, according to this example, it was confirmed that slightly acidic electrolyzed water having a chlorine concentration higher than the capacity of the slightly acidic electrolyzed water generator can be produced.
以上、本実施例により、本発明の効果を確認することができた。
As described above, the effect of the present invention could be confirmed by this example.
本発明は微酸性電解水活性処理装置及び微酸性電解水生成システム並びに微酸性電解水製造方法及び微酸性電解水活性化方法として産業上の利用可能性がある。
The present invention has industrial applicability as a slightly acidic electrolyzed water activation treatment device, a slightly acidic electrolyzed water generating system, a slightly acidic electrolyzed water production method, and a slightly acidic electrolyzed water activation method.
Claims (8)
- 微酸性電解水を貯留する貯留タンクと、
前記貯留タンクに貯留された前記微酸性電解水に対し活性処理を行う微酸性電解水活性処理装置と、を備える微酸性電解水生成システム。 a storage tank for storing slightly acidic electrolyzed water;
and a slightly acidic electrolyzed water activation treatment device that activates the slightly acidic electrolyzed water stored in the storage tank. - 微酸性電解水生成装置を備え、
前記貯留タンクは、前記微酸性電解水生成装置により生成された前記微酸性電解水を貯留する請求項１記載の微酸性電解水生成システム。 Equipped with a slightly acidic electrolyzed water generator,
2. The slightly acidic electrolyzed water generating system according to claim 1, wherein the storage tank stores the slightly acidic electrolyzed water generated by the slightly acidic electrolyzed water generator. - 前記微酸性電解水活性処理装置によって活性化された前記微酸性電解水を前記貯留タンクに戻すための返し配管を備える請求項１記載の微酸性電解水生成システム。 The slightly acidic electrolyzed water generating system according to claim 1, comprising a return pipe for returning the slightly acidic electrolyzed water activated by the slightly acidic electrolyzed water activation treatment device to the storage tank.
- 前記微酸性電解水生成装置は、
水道水に希塩酸を添加して前記微酸性電解水を生成する請求項２記載の微酸性電解水生成システム。 The slightly acidic electrolyzed water generator is
3. The slightly acidic electrolyzed water generating system according to claim 2, wherein the slightly acidic electrolyzed water is generated by adding dilute hydrochloric acid to tap water. - 前記貯留タンクに設置され前記貯留タンク内の前記微酸性電解水の塩素濃度及びｐＨの少なくともいずれかを検出する検出手段と、
前記検出手段が検出した前記塩素濃度及びｐＨの値が所定の範囲を外れた場合に、前記微酸性電解水活性処理装置に送る送水手段と、を有する請求項１記載の微酸性電解水生成システム。 a detection means installed in the storage tank for detecting at least one of the chlorine concentration and pH of the slightly acidic electrolyzed water in the storage tank;
2. The slightly acidic electrolyzed water generating system according to claim 1, further comprising: water feeding means for sending water to the slightly acidic electrolyzed water activation treatment device when the chlorine concentration and pH values detected by the detecting means are out of predetermined ranges. . - 微酸性電解水を電気分解する一対の電極と、
前記微酸性電解水を撹拌する撹拌部材と、を備える微酸性電解水活性処理装置。 a pair of electrodes for electrolyzing slightly acidic electrolyzed water;
and a stirring member for stirring the slightly acidic electrolyzed water. - 微酸性電解水を生成するステップ、
前記微酸性電解水を貯留するステップ、
前記微酸性電解水を更に電気分解するステップ、を備える微酸性電解水製造方法。 a step of generating slightly acidic electrolyzed water;
a step of storing the slightly acidic electrolyzed water;
A method for producing slightly acidic electrolyzed water, comprising the step of further electrolyzing the slightly acidic electrolyzed water. - 微酸性電解水を生成するステップ、
前記微酸性電解水を貯留するステップ、
前記微酸性電解水を更に電気分解するステップ、を備える微酸性電解水活性化方法。
a step of generating slightly acidic electrolyzed water;
a step of storing the slightly acidic electrolyzed water;
A method for activating slightly acidic electrolyzed water, comprising the step of further electrolyzing the slightly acidic electrolyzed water.
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