JPH0494788A - Production of germicidal water containing hypochlorous acid by electrolysis - Google Patents
Production of germicidal water containing hypochlorous acid by electrolysisInfo
- Publication number
- JPH0494788A JPH0494788A JP21327990A JP21327990A JPH0494788A JP H0494788 A JPH0494788 A JP H0494788A JP 21327990 A JP21327990 A JP 21327990A JP 21327990 A JP21327990 A JP 21327990A JP H0494788 A JPH0494788 A JP H0494788A
- Authority
- JP
- Japan
- Prior art keywords
- water
- chamber
- anode chamber
- electrolytic
- cathode chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 102
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 230000002070 germicidal effect Effects 0.000 title abstract 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 30
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002253 acid Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 5
- 150000007513 acids Chemical class 0.000 claims abstract description 3
- 239000007864 aqueous solution Substances 0.000 claims description 9
- 230000001954 sterilising effect Effects 0.000 claims description 9
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 3
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- -1 hydrochloric acid Chemical class 0.000 abstract 1
- 239000003643 water by type Substances 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 description 9
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 7
- 229910052801 chlorine Inorganic materials 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 239000005708 Sodium hypochlorite Substances 0.000 description 6
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 1
- PGOSAMIUUGUNNE-UHFFFAOYSA-N Cl[O-].[Th+4].Cl[O-].Cl[O-].Cl[O-] Chemical compound Cl[O-].[Th+4].Cl[O-].Cl[O-].Cl[O-] PGOSAMIUUGUNNE-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229940005989 chlorate ion Drugs 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は電解による次亜塩素酸含有殺菌水の製造方法に
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a method for producing sterilized water containing hypochlorous acid by electrolysis.
次亜塩素酸水溶液はｐ１］８以」−では次１１１１塩素
酸イオン（ＣＩＯ−）となり、殺菌力が次亜塩素酸（１
−ＩＣＩＯ）の場合に電動して著しく減少する。Hypochlorous acid aqueous solution becomes the next 1111 chlorate ion (CIO-) at p1]8 or higher, and the bactericidal power is hypochlorous acid (1)
-ICIO), it is electrically driven and decreases significantly.
しかしｐ１４３〜７の範囲ではＨＣｌ０の形で保たれ、
殺菌力が飛躍的に増大することが知られており（第２図
挙照）、従って、ｐ Ｉ−１３〜７の次亜塩素酸水は残
留塩素濃度が３０〜６０ｐｐｍ程度の低濃度でもｐ Ｈ
８の残留塩素濃度２００ｐｐｍ程度の殺菌水と同等の殺
菌効果が得られる。However, in the p143-7 range, it is kept in the form of HCl0,
It is known that the bactericidal power increases dramatically (see Figure 2), and therefore hypochlorous acid water with p I-13 to 7 has a low residual chlorine concentration of about 30 to 60 ppm. H
A sterilizing effect equivalent to that of sterilizing water with a residual chlorine concentration of about 200 ppm in No. 8 can be obtained.
このような殺菌水を得る方法としては従来より、水道水
等の原水に次亜塩素酸すｌ−＋７ウム（ＮａＣ１０）と
塩酸ＨＣＩを混合することが行われており、プール等の
殺菌に利用されている。The conventional method for obtaining such sterilized water is to mix 1-7 um of hypochlorite (NaC10) and hydrochloric acid HCI with raw water such as tap water, and this method is used to sterilize swimming pools, etc. has been done.
しかしながら、原水に次亜塩素酸ナトリウムと塩酸を混
合して上記性質の殺菌水を得る場合は殺菌水のｐＨ値を
５〜６に調整するのに次亜塩素酸ナトリウムが比較的多
く必要になり、コスト高になる。However, when mixing sodium hypochlorite and hydrochloric acid with raw water to obtain sterilized water with the above properties, a relatively large amount of sodium hypochlorite is required to adjust the pH value of the sterilized water to 5 to 6. , the cost will be high.
また、単に次亜塩素酸ナトリウム（ＮａＣＩＯ）水溶液
に塩酸（Ｉ（ＣＩ水溶液）を直接混合する従来の方法は
混合時に危険な塩素ガス（ＣＩ２）が発生するという重
大な問題があり、さらにはｐ Ｈ調整が面倒であるなど
、工程管理に種々問題かある。In addition, the conventional method of directly mixing hydrochloric acid (I (CI aqueous solution)) with sodium hypochlorite (NaCIO) aqueous solution has the serious problem of generating dangerous chlorine gas (CI2) during mixing, and furthermore, There are various problems with process control, such as the troublesome H adjustment.
本発明の目的は」−記の諸問題を解決するためになされ
たもので、混合式にくらへ次亜塩素酸及び塩酸等の薬剤
添加量が少なくてすみ、安全且つ効率的にＩ） Ｈが３
〜７、好ましくは５〜６．５の範囲の次亜塩素酸殺菌水
を製造する方法を提供することにある。The purpose of the present invention has been made to solve the problems described in "I). The mixed method requires only a small amount of chemicals such as hypochlorous acid and hydrochloric acid to be added to the human body, and safely and efficiently." is 3
It is an object of the present invention to provide a method for producing hypochlorous acid sterilized water having a molecular weight of 5 to 7, preferably 5 to 6.5.
本発明の−１−記目的は、陽電極と陰電極間に電解隔膜
を配した電解槽に水を導入し、陽極室の水に次亜塩素酸
塩を添加するとともに、陰極室の水に塩酸等の酸類を添
加し、陽極室に生成される電解次亜塩素酸水溶液のｐＨ
がほぼ３〜９に、また、陰極室に生成される電解水のｐ
Ｈがほぼ／１〜７になるように電解槽の水を電気分解
した後、陽極室と陰極室の電解生成水を混合し、ｐ Ｈ
がほぼ３〜７の電解次亜塩素酸水溶液を得ることによっ
て達成される。The object of the present invention is to introduce water into an electrolytic cell with an electrolytic diaphragm between the anode and the cathode, add hypochlorite to the water in the anode chamber, and add hypochlorite to the water in the cathode chamber. pH of electrolytic hypochlorous acid aqueous solution generated in the anode chamber by adding acids such as hydrochloric acid
is approximately 3 to 9, and the p of electrolyzed water generated in the cathode chamber is approximately 3 to 9.
After electrolyzing the water in the electrolytic cell so that H is approximately /1 to 7, the electrolytically generated water in the anode chamber and cathode chamber is mixed to adjust the pH.
is achieved by obtaining an electrolyzed aqueous hypochlorous acid solution of approximately 3-7.
本発明は電解隔膜で仕切った電解槽の陽極室の水にＮａ
Ｃｌ○を添加し、陰極室の水にＨＣｌを添加して電解す
ると陽極室のＮａＣｌ０の水溶液のｐ Ｈ値が下がり、
他方、陰極室のＨＣｌ水溶液は中和されてｌ） Ｈ値が
」二かることを利用するものである。In the present invention, Na
When Cl○ is added and HCl is added to the water in the cathode chamber for electrolysis, the pH value of the NaCl0 aqueous solution in the anode chamber decreases.
On the other hand, this method takes advantage of the fact that the HCl aqueous solution in the cathode chamber is neutralized and has a H value of 2.
すなわち、陽極室に次亜塩素酸すトリウムを添加した水
をｐ Ｉ（か３〜９になるように電解するには通常高い
電解電圧が必要であるが、本発明では同時に陰極室の水
に塩酸Ｉ Ｃ＋等の酸類を添加して電解するので陰極室
の塩酸ＭＣＩの一部が陽極室へ移動し、これにより陽極
室のｐ Ｈが下がる。In other words, a high electrolysis voltage is usually required to electrolyze water to which thorium hypochlorite has been added to the anode chamber so that the p Since an acid such as hydrochloric acid I C+ is added for electrolysis, a portion of the hydrochloric acid MCI in the cathode chamber moves to the anode chamber, thereby lowering the pH of the anode chamber.
従って、陽極室の水はより小さい電流、すなわち、低い
電圧でｐＨを３〜９を達成できる。また、電解により陰
極室ではＮａ”が陽極室から移動して来るので、このＮ
ａ ”の作用により陰極室のｌ−Ｉ Ｃ１水溶液のｐ
Ｈ値が」−界する。すなわち、陰極室の水は、陽極室
の水に混合しても塩素ガスが発生しないｐ Ｈ４〜７値
に中和される。Therefore, the water in the anode chamber can achieve a pH of 3-9 with less current, ie, lower voltage. In addition, Na'' moves from the anode chamber to the cathode chamber due to electrolysis, so this N
p of the l-I C1 aqueous solution in the cathode chamber due to the action of
The H value exceeds "-". That is, the water in the cathode chamber is neutralized to a pH value of 4 to 7, which does not generate chlorine gas even when mixed with water in the anode chamber.
従って、これら両型極室の電解水を混合することによっ
て、残留塩素のほぼ８０％以」二がＨＣｌ０の形で存在
するＴ）８３〜７の殺菌力の強い水が塩素ガスの発生を
伴わずに得られる。また、この電解水は使用原水の全量
が電解作用をうけている。Therefore, by mixing the electrolyzed water of both types of electrode chambers, water with strong sterilizing power (T)83-7, in which approximately 80% or more of the residual chlorine exists in the form of HCl0, can be produced with the generation of chlorine gas. You can get it without getting it. In addition, the entire amount of raw water used in this electrolyzed water is subjected to electrolytic action.
すなわち、本発明はｐ ！−１値が９よりも大きいＮａ
ｃＩｏ溶液からｐＨ３〜７の殺菌水を得るのに、まず、
電解の作用で前記陽極室の水をｐ Ｈ３〜９まで下げ、
次いで、この電解水と電解槽の陰極室に生成されたｐ
Ｈ４〜７の電解水との混合作用で電解水全体をｐ １−
１３〜７に下げるのである。このため、電解作用だけで
ｐ Ｈ３〜７まで下げる場合に比較すると電力は小さく
て済む。That is, the present invention p! -1 value is greater than 9
To obtain sterilized water with a pH of 3 to 7 from the cIo solution, first,
The pH of the water in the anode chamber is lowered to 3 to 9 by the action of electrolysis,
Next, this electrolyzed water and the p generated in the cathode chamber of the electrolytic cell are
By mixing with the electrolyzed water of H4-7, the entire electrolyzed water becomes p 1-
It will be lowered to 13-7. Therefore, compared to the case where the pH is lowered to 3 to 7 only by electrolysis, less electric power is required.
ここで、陰極室のｐ Ｈ値を４〜７に特定する理由は、
ｐ Ｈ値が４よりも小さいと混合時に塩素ガスが発生す
るおそれがあり、他方、ｐＨ値が７よりも大きいと陽極
室５からの電解水に混合したときに陽極室からの電解水
のｐ Ｈを下げる働きがなくなってしまうからである。Here, the reason why the pH value of the cathode chamber is specified as 4 to 7 is as follows.
If the pH value is less than 4, chlorine gas may be generated during mixing, while if the pH value is greater than 7, when mixed with the electrolyzed water from the anode chamber 5, the electrolyzed water from the anode chamber This is because the effect of lowering H is lost.
。
また、陽極室のｐ Ｈ値を３〜９に特定する理由は、ｐ
ＩＩ値が３より小さいと＋−Ｉ ＣＩ Ｏが不安定にな
り、他方、ｐ Ｈ値が９より大きいと陰極室の弱い酸性
水と混合した場合に所望のｐ ｌ（値、すなわちｐ Ｈ
３〜７が得られなくなるからである。. Also, the reason why the pH value of the anode chamber is specified as 3 to 9 is that
A II value less than 3 makes the +-I CIO unstable, while a pH value greater than 9 does not result in the desired p l (value, i.e. pH
This is because 3 to 7 cannot be obtained.
この種の殺菌水はｐ Ｈ値が７より大きいとＣ１０−が
増加して殺菌効果が低下し、他方、ｐ Ｔ（値が３より
小さいとＨＣＩ Ｏの存在が不安定となるが、本発明で
は」二足のようにｐ Ｈ３〜７の範囲にで水分子のクラ
スターが小さくなり浸透作用が良い。In this type of sterilizing water, when the pH value is greater than 7, C10- increases and the sterilizing effect decreases, while on the other hand, when the pH value is less than 3, the presence of HCIO becomes unstable, but the present invention In the pH range of 3 to 7, the clusters of water molecules become smaller and the osmotic effect is better.
以下、本発明の実施例を図面を参照して説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の詳細な説明する概略図であり、電解槽
１は陰電極２と陽電極３を対向配設し、画電極２，３間
を電解用隔膜４によ−）で陰極室２′と陽極室３′に仕
切ってなり、給水管５から導入した水道水などの原水を
電解し、両型極室に生成された電解水を一対の排出管路
６．７から排水するとともに、抽水管路６，７を、好ま
しくは流１１比率制御か可能なバルブ混合器８を介して
合流させ、殺菌水取水管路９から排水するようになって
いる。FIG. 1 is a schematic diagram illustrating the present invention in detail, and an electrolytic cell 1 has a cathode 2 and an anode 3 facing each other, and an electrolytic diaphragm 4 is used between the picture electrodes 2 and 3 to connect the cathode to the cathode. It is divided into a chamber 2' and an anode chamber 3', and raw water such as tap water introduced from the water supply pipe 5 is electrolyzed, and the electrolyzed water generated in the bipolar electrode chamber is drained from a pair of discharge pipes 6.7. At the same time, the water extraction pipes 6 and 7 are preferably merged via a valve mixer 8 capable of controlling the flow rate 11, and drained from the sterilized water intake pipe 9.
しかして、本発明は図のように、電解槽１の陽極室３′
の水に、好ましくは次亜塩素酸ナトリウムＮａＣｌ０な
どの次亜塩素酸塩を添加するとともに、陰極室２′の水
に、好ましくは塩酸ＨＣ１などの酸を添加し、且つ、陽
極室３′の電解生成水のｐ ＋（がほぼ３〜９に、また
、陰極室２′の電解生成水のｐ ｌ（か４〜７になるよ
うに電解槽の水を電気分解し、得られた陽極室３′の電
解水と陰極室の電解水を合流、混合してｐ Ｈがほぼ３
〜７、好ましくは５〜６．５の次亜塩素酸含有殺菌水と
して生成するものである。Therefore, the present invention provides an anode chamber 3' of an electrolytic cell 1 as shown in the figure.
A hypochlorite salt, preferably sodium hypochlorite NaCl0, is added to the water in the cathode chamber 2', and an acid, preferably hydrochloric acid HC1, is added to the water in the anode chamber 3'. The water in the electrolytic cell was electrolyzed so that p + (of the electrolytically produced water) was approximately 3 to 9, and p l (of the electrolytically produced water in the cathode chamber 2' was approximately 4 to 7. The electrolyzed water in 3' and the electrolyzed water in the cathode chamber are combined and mixed until the pH is approximately 3.
7, preferably 5 to 6.5, is produced as hypochlorous acid-containing sterilized water.
このため、次亜塩素酸ナトリウム溶液タンク１０と陽極
室３′間にパイプ１０ａが配管され、ポンプ１０ｂ、定
量バルブＩＯＣを介して陽極室３′にＮ ａ ＣＩ Ｏ
溶液が注入されるようになっているとともに、同様に、
塩酸タンク１１と陰極室２′間にもパイプＩｌａか配管
され、ポンプＩｊｂ、定量バルブＩＩＣを介して陰極室
２′にＩ−Ｉ ＣＩが注入されるようになっている。For this purpose, a pipe 10a is installed between the sodium hypochlorite solution tank 10 and the anode chamber 3', and N a CIO is supplied to the anode chamber 3' via the pump 10b and metering valve IOC.
As well as allowing the solution to be injected,
A pipe Ila is also connected between the hydrochloric acid tank 11 and the cathode chamber 2', and I-I CI is injected into the cathode chamber 2' via a pump Ijb and a metering valve IIC.
第１図のように電解槽１は連続的に水を給排水しなから
電解を行う通水式電解槽でもまた、バッチ式電解槽でも
よいが、図のように連続通水式の電解槽を用いる場合は
給水路５に定流量バルブ１２を設けるとともに、陰極室
と陽極室の流量比を、例えば、１対２、あるいは１対３
のように予め設定しておき、電解槽に導入される単位時
間当りの原水量がわかるようにしておく。また、望まし
くは、殺菌水利用側の排出管路６，７にｐＨ測定器１４
．１３を設けておいてもよい。As shown in Figure 1, the electrolytic cell 1 may be a water-flow type electrolytic cell in which electrolysis is performed without continuously supplying and draining water, or it may be a batch-type electrolytic cell. When used, a constant flow valve 12 is provided in the water supply channel 5, and the flow rate ratio between the cathode chamber and the anode chamber is set to, for example, 1:2 or 1:3.
It is set in advance as follows, so that the amount of raw water introduced into the electrolytic cell per unit time can be known. Also, desirably, a pH measuring device 14 is provided in the discharge pipes 6 and 7 on the sterilized water usage side.
．． 13 may be provided.
次亜塩素酸すトリウム（ＮａＣＩＯ）は例えば市販の１
２％溶液を使用し、これを電解槽の陽極室３′に添加し
、電解槽１の水に所定の割合で混合されるように定流量
バルブを］Ｏｃを介して投入される。For example, sodium hypochlorite (NaCIO) is commercially available.
A 2% solution is used and added to the anode chamber 3' of the electrolytic cell through a constant flow valve ]Oc so that it is mixed with the water of the electrolytic cell 1 at a predetermined ratio.
このように、陽極室３′の水にＮ ａ ＣＩ Ｏを、ま
た陰極室２′の水にＨＣＩを添加して電解槽１の電極２
，３に直流電圧を印加し、陽極室３′の電解水がｐ Ｈ
３〜９に、また、陰極室２′の水がｐ Ｈ／ｌ〜７にな
るように電解する。In this way, by adding N a CIO to the water in the anode chamber 3' and HCI to the water in the cathode chamber 2', the electrode 2 of the electrolytic cell 1 is heated.
, 3, the electrolyzed water in the anode chamber 3' becomes pH
3 to 9, and the water in the cathode chamber 2' is electrolyzed to pH/l to 7.
そして塩酸””の添加量は、電解後に混合した両型解水
の全体がｐ Ｈ３〜７になるように調整する。The amount of hydrochloric acid added is adjusted so that the total pH of both types of decomposed water mixed after electrolysis is 3 to 7.
−１−記の電解により陽極室３′の水に添加したＮａｃ
ＩｏからナトリウムイオンＮａ”が解離し、電解隔膜４
を通して陰極室２′に移動し、陽極室３′の水には第２
図のように残留遊離塩素が次亜塩素酸（Ｉ（ＣＩＯ）ま
たは０ＣＩ−″の形で存在することになる。Nac added to the water in the anode chamber 3' by the electrolysis described in -1-
Sodium ion Na'' is dissociated from Io, and the electrolytic diaphragm 4
The water in the anode chamber 3' is transferred to the cathode chamber 2' through the
As shown in the figure, residual free chlorine exists in the form of hypochlorous acid (I(CIO) or 0CI-'').
他方、陰極室２′の水に添加されたＨＣＩは電解により
ＩＩ”とＣＩ に解離され、Ｃ１−は電解隔膜４を通
して陽極室３′に移動し、陽極室の電解水のｐ Ｈを下
げるとともに、陰極室２′の電解水自体は中和作用によ
りｐ ］（４〜７に中和される。On the other hand, HCI added to the water in the cathode chamber 2' is dissociated into II'' and CI by electrolysis, and C1- moves to the anode chamber 3' through the electrolytic diaphragm 4, lowering the pH of the electrolyzed water in the anode chamber and lowering the pH of the electrolyzed water in the anode chamber. The electrolyzed water itself in the cathode chamber 2' is neutralized to p ] (4 to 7) by the neutralizing action.
−１ユ記の電解において、陽極室３′の電解水のｐ１１
調整は陰極室２′へのＴ−ｉ ＣＩの添加量と電解電圧
の調節によってなされる。すなわち、陰極室２′に導入
されたＨＣＩは電解によりＩ４°とＣ１−に解離され、
ＣＩ−は陽極室３′に移動して陽極室３′の電解水中に
おけるＨ ＣＩ Ｏの生成に供されるほか、陽極室の水
をｐ Ｉ−１３〜９に下げる働きをするので電解電圧は
その分だけ低（てすむ。- In the electrolysis described in U, p11 of the electrolyzed water in the anode chamber 3'
Adjustments are made by adjusting the amount of T-i CI added to the cathode chamber 2' and the electrolytic voltage. That is, HCI introduced into the cathode chamber 2' is dissociated into I4° and C1- by electrolysis,
CI- moves to the anode chamber 3' and is used to generate HCIO in the electrolyzed water in the anode chamber 3', and also serves to lower the water in the anode chamber to p I-13 to 9, so the electrolytic voltage is That's why it's so low.
尚、殺菌水のｐ Ｈ測定値に基づいて塩酸の供給量が自
動的に制御するようにするのがより望ましい。It is more desirable that the amount of hydrochloric acid supplied be automatically controlled based on the measured pH value of the sterilized water.
しかして、本発明は」二足の電解によって生じたｐ Ｈ
３〜９の陽極室側電解水とｐＩＩ／Ｉ〜７の陰極室側電
解水を、比率制御が可能な混合バルブ８を介して合流、
混合することによって取水管路９からｐ Ｈがほぼ３〜
７、好ましくは５〜６．５の次亜塩素酸殺菌水を生成す
るものである。Therefore, the present invention is directed to the pH generated by two-leg electrolysis.
3 to 9 of the anode chamber side electrolyzed water and pII/I to 7 of the cathode chamber side electrolyzed water are combined via a mixing valve 8 whose ratio can be controlled,
By mixing, the pH from the water intake pipe 9 is approximately 3~3.
7, preferably 5 to 6.5, to produce hypochlorous acid sterilized water.
〜６０ｐｐｍ程度の低濃度でも充分に効果のある殺菌水
として供し得る。Even at a low concentration of ~60 ppm, it can be used as sufficiently effective sterilizing water.
本発明は陽極室に生成されるｐ ＋−１３〜９の電解次
亜塩素酸水に、ｐＨ４〜７に中和された１＋２極室の電
解水を混合するので塩素ガスを発生させずに低濃度で殺
菌力の強い次亜塩素酸殺菌水を得ることが可能になり、
安全且つ効率的である。The present invention mixes the electrolyzed hypochlorous acid water with p+-13 to 9 generated in the anode chamber with the electrolyzed water in the 1+2 electrode chamber that has been neutralized to pH 4 to 7, so it does not generate chlorine gas and has a low It is now possible to obtain hypochlorous acid sterilized water with strong sterilizing power due to its concentration.
Safe and efficient.
特に、本発明は陰極室へのＭＣＩの添加により、比較的
低電圧で陽極室のｐ Ｈを下げる効果があるか、加えて
、陽極室の電解水がｐＨ８，９のアルカリ側の場合でも
陰極室の電解水を合流させることでｐ Ｈ３〜７に調整
されるのでそれだけ電解電圧が低くて済み、電力を節約
できる。In particular, the present invention shows that the addition of MCI to the cathode chamber has the effect of lowering the pH of the anode chamber at a relatively low voltage. By combining the electrolyzed water in the chamber, the pH is adjusted to 3 to 7, so the electrolysis voltage can be lowered accordingly, and power can be saved.
また、本発明の殺菌水１．を全量が電解作用をうけてい
るので水分子のクラスターが微細になり浸透作用が良い
。従って、食品なとの殺菌には特に効果か大である。In addition, the sterilized water of the present invention 1. Since the entire amount is subjected to electrolytic action, the clusters of water molecules become fine and the penetration effect is good. Therefore, it is particularly effective in sterilizing foods.
さらに、ＮａＣｌ０等の添加量によってＩ−Ｉ Ｃ１０
の量が決まるので、原水の供給量とこれに対するＮａＣ
ｌ０の添加４ｎから次亜塩素酸水の残留塩素濃度の所望
最低保証値を計算によって簡単にηることがてき、且つ
電解電流の変化でｐ ｔｌ値の警報信号をひろえるので
ＩＩ） Ｈ値の状況を常に把握することかでき、管理か
し易い。Furthermore, depending on the amount of NaCl0 etc. added, I-I C10
Since the amount of NaC is determined, the amount of raw water supplied and the NaC
From the addition 4n of 10, the desired minimum guaranteed value of the residual chlorine concentration in hypochlorous acid water can be easily calculated η, and the alarm signal of the p tl value can be obtained by changing the electrolytic current, so II) H value You can always know the situation and it is easy to manage.
【図面の簡単な説明】
第１図は本発明の詳細な説明するための概略図、第２図
は次亜塩素酸水溶液の残留遊離塩素存在比と溶液のｐ
Ｈの関係を示すグラフである。
１・・・電解槽、 ２′・・・陰極室、 ３′・・・陽
極室、４・・電解隔膜、 ５・・・給水管路、 ６，７
・・排出管路、８・・・流量比率制御バルブ混合器、
９・・取水管路、１Ｏ−ＮａＣＩＯタンク、 ｌ ｌ
・Ｉ−Ｉ Ｃｌタンク。
特許出願人 株式会社オ １１ コ 外Ｉ名代理人
弁上゛佐 藤 直 義
弟１図
〆
第２図
残留遊離塩素の存在比（％）[Brief Description of the Drawings] Figure 1 is a schematic diagram for explaining the present invention in detail, and Figure 2 is a diagram showing the residual free chlorine abundance ratio of an aqueous hypochlorous acid solution and the p of the solution.
It is a graph showing the relationship between H. 1... Electrolytic cell, 2'... Cathode chamber, 3'... Anode chamber, 4... Electrolytic diaphragm, 5... Water supply pipe, 6, 7
...Discharge pipe line, 8...Flow rate ratio control valve mixer,
9... Water intake pipe, 1O-NaCIO tank, l l
・I-I Cl tank. Patent Applicant: O Co., Ltd. 11 Co., Ltd. Named Agent
Benjo Sato Naoto Brother-in-law 1 Figure 2 Residual free chlorine abundance ratio (%)
Claims (1)
入し、陽極室の水に次亜塩素酸塩を添加するとともに、
陰極室の水に塩酸等の酸類を添加し、陽極室に生成され
る電解次亜塩素酸水溶液のｐＨがほぼ３〜９に、また、
陰極室に生成される電解水のｐＨがほぼ４〜７になるよ
うに電解槽の水を電気分解した後、陽極室と陰極室の電
解生成水を混合し、ｐＨがほぼ３〜７の電解次亜塩素酸
水溶液を得ることを特徴とする電解による次亜塩素酸含
有殺菌水の製造方法。Raw water is introduced into an electrolytic tank with an electrolytic diaphragm placed between the anode and cathode, and hypochlorite is added to the water in the anode chamber.
By adding acids such as hydrochloric acid to the water in the cathode chamber, the pH of the electrolyzed hypochlorous acid aqueous solution produced in the anode chamber is approximately 3 to 9, and
After electrolyzing the water in the electrolytic cell so that the pH of the electrolyzed water produced in the cathode chamber is approximately 4 to 7, the electrolyzed water in the anode and cathode chambers is mixed to produce an electrolyzed water with a pH of approximately 3 to 7. A method for producing hypochlorous acid-containing sterilizing water by electrolysis, the method comprising obtaining a hypochlorous acid aqueous solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21327990A JP2892121B2 (en) | 1990-08-10 | 1990-08-10 | Method for producing sterile water containing hypochlorous acid by electrolysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21327990A JP2892121B2 (en) | 1990-08-10 | 1990-08-10 | Method for producing sterile water containing hypochlorous acid by electrolysis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0494788A true JPH0494788A (en) | 1992-03-26 |
| JP2892121B2 JP2892121B2 (en) | 1999-05-17 |
Family
ID=16636478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21327990A Expired - Lifetime JP2892121B2 (en) | 1990-08-10 | 1990-08-10 | Method for producing sterile water containing hypochlorous acid by electrolysis |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2892121B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009098870A1 (en) | 2008-02-08 | 2009-08-13 | Noguchi Dental Medical Research Institute | Dental sterilizing water, method for producing the water, and device for producing the water |
| JP2014050839A (en) * | 2008-10-01 | 2014-03-20 | Gojo Industries Inc | ELECTROLYTIC DEVICE FOR GENERATION OF pH-CONTROLLED HYPOHALOUS ACID AQUEOUS SOLUTIONS FOR DISINFECTANT APPLICATIONS |
| CN115077169A (en) * | 2022-07-15 | 2022-09-20 | 珠海格力电器股份有限公司 | Refrigerator and control method thereof |
-
1990
- 1990-08-10 JP JP21327990A patent/JP2892121B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009098870A1 (en) | 2008-02-08 | 2009-08-13 | Noguchi Dental Medical Research Institute | Dental sterilizing water, method for producing the water, and device for producing the water |
| JP2014050839A (en) * | 2008-10-01 | 2014-03-20 | Gojo Industries Inc | ELECTROLYTIC DEVICE FOR GENERATION OF pH-CONTROLLED HYPOHALOUS ACID AQUEOUS SOLUTIONS FOR DISINFECTANT APPLICATIONS |
| CN115077169A (en) * | 2022-07-15 | 2022-09-20 | 珠海格力电器股份有限公司 | Refrigerator and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2892121B2 (en) | 1999-05-17 |
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