JPH1024294A - Production of weakly acidic chlorine based sterilizing water - Google Patents
Production of weakly acidic chlorine based sterilizing waterInfo
- Publication number
- JPH1024294A JPH1024294A JP8164856A JP16485696A JPH1024294A JP H1024294 A JPH1024294 A JP H1024294A JP 8164856 A JP8164856 A JP 8164856A JP 16485696 A JP16485696 A JP 16485696A JP H1024294 A JPH1024294 A JP H1024294A
- Authority
- JP
- Japan
- Prior art keywords
- water
- carbon dioxide
- dioxide gas
- chlorine
- adjusted
- 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 109
- 230000002378 acidificating effect Effects 0.000 title claims abstract description 35
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 35
- 239000000460 chlorine Substances 0.000 title claims abstract description 30
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910052801 chlorine Inorganic materials 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims description 70
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 115
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 52
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 52
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 30
- 238000005868 electrolysis reaction Methods 0.000 claims description 27
- 239000007864 aqueous solution Substances 0.000 claims description 15
- 235000011089 carbon dioxide Nutrition 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 8
- 239000004480 active ingredient Substances 0.000 claims description 5
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims description 5
- 238000003860 storage Methods 0.000 abstract description 17
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 150000003839 salts Chemical class 0.000 abstract 5
- 230000008021 deposition Effects 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 27
- 239000005708 Sodium hypochlorite Substances 0.000 description 9
- 210000004027 cell Anatomy 0.000 description 9
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 9
- 230000005587 bubbling Effects 0.000 description 7
- 239000011780 sodium chloride Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000004659 sterilization and disinfection Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000003002 pH adjusting agent Substances 0.000 description 4
- 239000012266 salt solution Substances 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000010979 pH adjustment Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 102220547770 Inducible T-cell costimulator_A23L_mutation Human genes 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Landscapes
- Non-Alcoholic Beverages (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、弱酸性の塩素系殺
菌水の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a weakly acidic chlorine-based sterilizing water.
【０００２】[0002]
【従来の技術】塩素を有効成分とする殺菌水は、厨房
内、厨房器具等の殺菌処理、野菜、肉等食品類の殺菌処
理、病院内、医療器具等の殺菌処理等、広い分野の殺菌
処理に利用されている。当該殺菌水を製造する方法とし
ては、例えば、特開平４−４２０７７号公報に示されて
いる食塩水の有隔膜電解法、特開平５−２３７４７８号
公報に示されている食塩水の無隔膜電解法等が知られて
いる。2. Description of the Related Art Sterilization water containing chlorine as an active ingredient is used in a wide range of fields such as sterilization of kitchen and kitchen appliances, sterilization of foods such as vegetables and meat, hospitals and medical equipment. Used for processing. Examples of a method for producing the sterilized water include, for example, a diaphragm electrolysis method of a saline solution described in JP-A-4-42077 and a diaphragm-free electrolysis method of a saline solution described in JP-A-5-237478. The law is known.
【０００３】しかして、塩素系殺菌水における塩素成分
は水溶液のｐＨの影響を大きく受けて、Ｃｌ2、ＨＯＣ
ｌ、およびＯＣｌ-の３つの形態、すなわち強酸性側で
Ｃｌ2、弱酸性側でＨＯＣｌ、弱アルカリ性側でＯＣｌ-
の形態をとる。これらの形態のうち、ＨＯＣｌの形態が
最も殺菌力が強く、かつＨＯＣｌの形態はｐＨが５前後
の近傍において最も多く存在するとともに、その有効塩
素の安定性も強酸性側に比較して高い。[0003] However, the chlorine component in the chlorine-based sterilizing water is greatly affected by the pH of the aqueous solution, and Cl 2 , HOC
l, and OCl - three forms, i.e. Cl 2 strongly acidic side, HOCl a weakly acidic side, in a weakly alkaline side OCl -
In the form of Among these forms, the form of HOCl has the strongest bactericidal activity, and the form of HOCl is most present in the vicinity of pH around 5, and the stability of available chlorine is higher than that of the strongly acidic form.
【０００４】従って、塩素系殺菌水はその殺菌力からす
れば、ｐＨ５を中心とする前後のｐＨ値の範囲の弱酸性
であることが好ましく、またこの範囲のｐＨ値の殺菌水
は揮発性塩素を全くまたは殆ど含まないため、使用する
場合の安全性が十分に確保される等、取扱いも容易であ
る。Accordingly, in view of the sterilizing power of the chlorine-based sterilizing water, it is preferable that the sterilizing water is weakly acidic in a range of pH values around pH 5, and sterilizing water having a pH value in this range is volatile chlorine. Since it contains no or almost no, it is easy to handle, for example, safety during use is sufficiently ensured.
【０００５】上記した前者の公開公報に示されている食
塩水の有隔膜電解法では、アノード室に生成される酸性
水が殺菌力を有するものであるが、この酸性水はｐＨが
２．５前後という強酸性であることから、この酸性水を
水で適宜の濃度に希釈し、またはこの酸性水をアルカリ
性水で適宜のｐＨに調整して殺菌水として使用される。
なお、当該有隔膜電解法においては、印加電流、食塩水
の濃度、食塩水の流速等によってもｐＨ、有効塩素量の
調整を行うことができる。[0005] In the above-mentioned prior art, the acidic water produced in the anode compartment has a bactericidal activity, and the pH of the acidic water is 2.5. Because of the strong acidity before and after, this acidic water is diluted with water to an appropriate concentration, or this acidic water is adjusted to an appropriate pH with alkaline water and used as sterilizing water.
In the diaphragm electrolysis method, the pH and the effective chlorine amount can be adjusted also by the applied current, the concentration of the saline solution, the flow rate of the saline solution, and the like.
【０００６】また、上記した後者の公開公報に示されて
いる食塩水の無隔膜電解法では、被電解水として食塩水
にｐＨ調整剤として塩酸を添加したものを採用して無隔
膜電解を行い、ｐＨの調整された電解生成水を殺菌水と
して得ている。[0006] Further, in the saline membrane electrolysis method disclosed in the above-mentioned publication, non-diaphragm electrolysis is performed by using a saline solution to which hydrochloric acid is added as a pH adjuster as the water to be electrolyzed. In addition, electrolysis water whose pH has been adjusted is obtained as sterilizing water.
【０００７】[0007]
【発明が解決しようとする課題】ところで、食塩水の有
隔膜電解法では上記したように、アノード室側でｐＨが
２．５前後の強酸性の酸性水が生成されるとともに、カ
ソード室側ではｐＨが１１．５前後のアルカリ性水が生
成され、さらには酸性水は揮発性の塩素ガスを包含して
いる。このため、当該有隔膜電解法では、電解装置、そ
の付属施設を構成する金属、樹脂、コンクリート等が浸
食され、腐食されるという問題がある。また、カソード
室側では、アルカリ性水の生成に起因して不溶性のスケ
ールが析出するため、このスケールを除去するためにア
ノード室、カソード室の両室を構成する各電極の極性を
定期的に切替える必要があるが、この各電極の極性の切
替えに起因して電極の寿命が短縮されるという問題があ
る。さらには、使用する水が硬質である場合には、スケ
ールの析出が増大することから、軟水化処理が必要とな
るという問題もある。As described above, in the case of the saline membrane electrolysis method, as described above, a strongly acidic acidic water having a pH of about 2.5 is generated on the anode chamber side, and the acidic water is generated on the cathode chamber side. Alkaline water having a pH of about 11.5 is produced, and the acidic water contains volatile chlorine gas. For this reason, in the diaphragm electrolysis method, there is a problem that the metal, resin, concrete, and the like that constitute the electrolysis device and its attached facilities are eroded and corroded. On the cathode chamber side, insoluble scale precipitates due to the generation of alkaline water, and the polarity of each electrode constituting both the anode chamber and the cathode chamber is periodically switched to remove this scale. Although it is necessary, there is a problem in that the switching of the polarity of each electrode shortens the life of the electrode. Furthermore, when the water used is hard, the precipitation of scale increases, so that there is a problem that a water softening treatment is required.
【０００８】一方、無隔膜電解法では、上記した有隔膜
電解法のごとき問題は発生しないが、生成される電解水
は通常ｐＨが８〜１０という弱アルカリ性であって、殺
菌力が極めて低いという問題がある。このため、無隔膜
電解法では上記したように、被電解水である食塩水を予
め塩酸を使用してｐＨの調整を行い、弱酸性の電解生成
水を得るようにしているが、塩酸は通常一般には自由に
は入手し得ず、また１０重量％以上のものは劇薬である
ことから取扱いには十分に注意する必要がある。On the other hand, in the non-diaphragm electrolysis method, there is no problem as in the above-mentioned diaphragm electrolysis method, but the generated electrolyzed water is usually weakly alkaline having a pH of 8 to 10 and has very low bactericidal activity. There's a problem. For this reason, in the non-diaphragm electrolysis method, as described above, the pH of the saline to be electrolyzed is adjusted using hydrochloric acid in advance to obtain weakly acidic electrolyzed water. In general, it is not freely available, and if it is 10% by weight or more, it is a powerful drug, so care must be taken when handling it.
【０００９】従って、本発明の目的は、従来の有隔膜電
解法、無隔膜電解法等による殺菌水の製造方法における
各種の問題を解決することにある。Accordingly, it is an object of the present invention to solve various problems in a conventional method for producing sterilized water by a diaphragm electrolysis method, a non-diaphragm electrolysis method, or the like.
【００１０】[0010]
【課題を解決するための手段】本発明は、塩素を有効成
分とする弱酸性の塩素系殺菌水の製造方法に関するもの
で、その第１の製造方法は、食塩水を無隔膜電解するの
に先だって炭酸ガスを使用してｐＨ調整し、その後無隔
膜電解することを特徴するものであり、また第２の製造
方法は、食塩水を無隔膜電解して生成された電解水を炭
酸ガスを使用してｐＨ調整することを特徴するものであ
り、さらにまた第３の製造方法は、次亜塩素酸水溶液を
炭酸ガスを使用してｐＨ調整することを特徴とするもの
である。SUMMARY OF THE INVENTION The present invention relates to a method for producing a weakly acidic chlorine-based sterilizing water containing chlorine as an active ingredient. The method is characterized in that the pH is adjusted using carbon dioxide beforehand, and then electrolysis without diaphragm is performed. Further, the second production method uses electrolyzed water produced by non-diaphragm electrolysis of saline solution using carbon dioxide. The third manufacturing method is characterized in that the pH of the aqueous hypochlorous acid solution is adjusted using carbon dioxide gas.
【００１１】これらの製造方法においては、炭酸ガスと
してガスボンベに収納されている炭酸ガス、またはドラ
イアイスを採用することができ、ガスボンベ中の炭酸ガ
スを採用する場合には、炭酸ガスをバブリングして各被
ｐＨ調整水溶液に供給することが好ましい。In these production methods, carbon dioxide contained in a gas cylinder or dry ice can be employed as carbon dioxide. When carbon dioxide in a gas cylinder is employed, the carbon dioxide is bubbled. It is preferable to supply each pH-adjusted aqueous solution.
【００１２】[0012]
【発明の作用・効果】本発明の第１，第２の製造方法は
無隔膜電解法であるため、電解生成水は強酸性水もアル
カリ性水も生成されることはなく、強酸性水からの塩素
ガスの揮発、電解装置、その付属施設を構成する金属、
樹脂、コンクリート等の浸食、腐食等の問題が発生する
ことはなく、またアルカリ性に起因して不溶性のスケー
ルの析出、スケールを除去するための両電極の極性の定
期的な切替えに起因する電極の寿命の短縮等といった問
題が発生することはない。Since the first and second production methods of the present invention are non-diaphragm electrolysis methods, neither strongly acidic water nor alkaline water is generated in the electrolytically produced water, Chlorine gas volatilization, electrolysis equipment, metals that make up the auxiliary facilities,
No problems such as erosion and corrosion of resin, concrete, etc. occur.In addition, precipitation of insoluble scale due to alkalinity, and electrode change due to periodic switching of the polarity of both electrodes to remove scale. There is no problem such as shortened life.
【００１３】また、電解生成水のｐＨの調整には炭酸ガ
スを使用しているため、ｐＨ調整剤として使用する炭酸
ガスの入手は容易であり、かつその取扱いにもさほどの
注意を要しない。Further, since carbon dioxide gas is used to adjust the pH of the electrolyzed water, it is easy to obtain carbon dioxide gas to be used as a pH adjuster, and the handling thereof does not require much attention.
【００１４】また、本発明の第３の製造方法では有隔膜
電解法、無隔膜電解法のいずれの電解法も採用するもの
ではないため、高価な電解装置を必要としないととも
に、上記した各電解法に起因する各問題の発生は全くな
いという利点がある。また、次亜塩素酸ソーダ水溶液の
ｐＨの調整には炭酸ガスを使用しているが、ｐＨ調整剤
として使用する炭酸ガスの入手は自由に行え、かつその
取扱いにもさほどの注意を必要としない。Further, in the third production method of the present invention, since neither the diaphragm electrolysis method nor the diaphragm electrolysis method is adopted, an expensive electrolysis apparatus is not required, and the above-mentioned electrolysis method is not required. There is an advantage that there are no problems caused by the law. In addition, although carbon dioxide gas is used to adjust the pH of the sodium hypochlorite aqueous solution, the carbon dioxide gas used as a pH adjuster can be freely obtained, and the handling thereof does not require much attention. .
【００１５】本発明の各製造方法においては、ｐＨ調整
剤として一般に入手の容易な炭酸ガスを採用しており、
炭酸ガスとしてはガスボンベに収容されている炭酸ガス
またはドライアイスを採用することができるが、ドライ
アイスを採用する場合には、炭酸ガスボンベが不要で炭
酸ガス源の運搬が容易であるとともに、ドライアイスを
被ｐＨ調整水溶液に添加する場合には、ｐＨを調整され
た水溶液の水温が低下して有効塩素濃度を長時間安定し
て保持することができるという利点がある。In each of the production methods of the present invention, generally available carbon dioxide gas is adopted as the pH adjuster.
Carbon dioxide or dry ice contained in a gas cylinder can be used as the carbon dioxide gas.However, when dry ice is used, the carbon dioxide gas cylinder is not required, and the transportation of the carbon dioxide gas source is easy, and the dry ice Is added to the pH-adjusted aqueous solution, there is an advantage that the water temperature of the pH-adjusted aqueous solution is lowered and the effective chlorine concentration can be stably maintained for a long time.
【００１６】[0016]
【発明の実施の形態】以下、本発明を図面に基づいて説
明するに、図１には本発明の第１の製造方法を実施する
ための製造装置１０が概略的に示されている。当該製造
装置１０は、被電解水である食塩水の調製タンク１１、
電解槽１２、およびｐＨ調整手段１３を備え、調製タン
ク１１と電解槽１２とは供給管路１４ａを介して互いに
連結されているとともに、電解槽１２は流出管路１４ｂ
を介して図示しない殺菌水の貯留タンクに連結されてい
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the drawings. FIG. 1 schematically shows a manufacturing apparatus 10 for carrying out a first manufacturing method of the present invention. The production apparatus 10 includes a preparation tank 11 for a saline solution as the electrolyzed water,
An electrolytic cell 12 and a pH adjusting means 13 are provided. The preparation tank 11 and the electrolytic cell 12 are connected to each other via a supply line 14a, and the electrolytic cell 12 is connected to an outlet line 14b.
Through a storage tank (not shown).
【００１７】調製タンク１１内の底部には、ｐＨ調整手
段１３を構成する噴出管１３ａが配設されていて、噴出
管１３ａは炭酸ガスボンベ１３ｂに連結されている。噴
出管１３ａは所定長さのパイプ状のもので、長手方向に
多数の噴出孔を備え、炭酸ガスボンベ１３ｂからの炭酸
ガスを調製タンク１１内に収容している希薄食塩水に、
バブリング状態で供給すべく機能する。At the bottom of the preparation tank 11, an ejection pipe 13a constituting the pH adjusting means 13 is provided, and the ejection pipe 13a is connected to a carbon dioxide gas cylinder 13b. The ejection pipe 13a is a pipe having a predetermined length, is provided with a large number of ejection holes in the longitudinal direction, and is provided with a diluted saline solution containing carbon dioxide gas from the carbon dioxide gas cylinder 13b in the preparation tank 11.
Works to supply in bubbling state.
【００１８】電解槽１２は、槽本体１２ａ内に一対の電
極１２ｂ，１２ｃを配設されて構成されている無隔膜電
解槽であり、各電極１２ｂ，１２ｃには直流電源１２ｄ
が接続されていて、一方の電極１２ｂが正極に、かつ他
方の電極１２ｃが負極になっている。なお、供給管路１
４ａには、供給ポンプ１５ａと開閉バルブ１５ｂが配設
されている。The electrolytic cell 12 is a non-diaphragm electrolytic cell in which a pair of electrodes 12b and 12c are disposed in a cell body 12a, and a DC power supply 12d is provided to each of the electrodes 12b and 12c.
Are connected, and one electrode 12b is a positive electrode and the other electrode 12c is a negative electrode. In addition, supply line 1
A supply pump 15a and an opening / closing valve 15b are provided in 4a.
【００１９】当該製造装置１０を用いて殺菌水を製造す
るには、例えば０．１重量％の希薄食塩水を調製タンク
１１内に収容し、炭酸ガスボンベ１３ｂ内の炭酸ガスを
噴出管１３ａを通して調製タンク１１内に収容されてい
る希薄食塩水に供給し、希薄食塩水のｐＨを４〜５程度
に調製する。To produce sterilized water using the production apparatus 10, for example, a 0.1% by weight diluted saline solution is stored in the preparation tank 11, and the carbon dioxide gas in the carbon dioxide gas cylinder 13b is prepared through the jet pipe 13a. The diluted salt solution is supplied to the diluted salt solution contained in the tank 11, and the pH of the diluted salt solution is adjusted to about 4 to 5.
【００２０】ｐＨを調製された希薄食塩水は、供給ポン
プ１５ａの駆動により開閉バルブ１５ｂを通して電解槽
１２の槽本体１２ａ内に供給され、槽本体１２ａ内の電
流の印加されている正負両電極１２ｂ，１２ｃ間を流動
する間に無隔膜電解され、槽本体１２ａ内にて生成され
た電解生成水は流出管路１４ｂから貯留タンクへ流出さ
れる。The diluted saline solution whose pH has been adjusted is supplied into the tank body 12a of the electrolytic cell 12 through the opening / closing valve 15b by driving the supply pump 15a, and the positive and negative electrodes 12b to which current is applied in the tank body 12a. , 12c, and electrolyzed water generated in the tank body 12a flows out of the outflow pipe 14b to the storage tank.
【００２１】電解生成水は、希薄食塩水のｐＨよりわず
かに高いｐＨ値となるが、ｐＨ調整をしていない同濃度
の希薄食塩水を使用した場合に比較すると、一製造例に
よれば、ｐＨ無調整の希薄食塩水を使用した場合にはｐ
Ｈが８．３５で有効塩素量が２１ｐｐｍであるのに対し
て、ｐＨ調整された希薄食塩水を使用した場合にはｐＨ
が５．１７で有効塩素量が２９ｐｐｍであった。The electrolyzed water has a pH value slightly higher than the pH of the dilute saline, but according to one production example, as compared with the case of using the same concentration of dilute saline without pH adjustment, If dilute saline without pH adjustment is used, p
When H is 8.35 and the available chlorine amount is 21 ppm, the pH is adjusted when dilute saline adjusted to pH is used.
Was 5.17 and the available chlorine amount was 29 ppm.
【００２２】図６には、０．１重量％の食塩水２００リ
ットルに１．５ｋｇ／ｃｍ2の炭酸ガスをバブリング状
態で供給した場合のｐＨの継時的変化が示されており、
この条件での炭酸ガスのバブリングでは希薄食塩水は漸
次飽和状態となって、そのｐＨ値は所定時間の経過後に
はｐＨ５よりわずかに低い所定値に落ち着く。FIG. 6 shows a change in pH over time when 1.5 kg / cm 2 of carbon dioxide gas is supplied in a bubbling state to 200 liters of a 0.1% by weight saline solution.
Under the bubbling of carbon dioxide gas under this condition, the diluted saline solution gradually becomes saturated, and its pH value is settled to a predetermined value slightly lower than pH 5 after a lapse of a predetermined time.
【００２３】また、図７は、この状態の希薄食塩水５０
０ｃｃを広口の容器に収容して容器の口を密閉した場合
と開放した場合のｐＨ値の継時的変化を示しているもの
であるが、ｐＨ値の調整された希薄食塩水は密閉容器に
収容すれば、調整された一定のｐＨ値を長時間維持し得
ることがわかる。FIG. 7 shows the diluted salt solution 50 in this state.
It shows the change over time of the pH value when 0 cc is stored in a wide-mouthed container and the mouth of the container is closed and opened, but the diluted saline solution with the adjusted pH value is placed in a closed container. It can be seen that, if accommodated, the adjusted constant pH value can be maintained for a long time.
【００２４】図２には、本発明の第２の製造方法を実施
するための製造装置２０が概略的に示されている。当該
製造装置２０は、被電解水である希薄食塩水の収容タン
ク２１、電解槽２２、電解生成水の調製タンク２３、お
よびｐＨ調整手段２４を備え、収容タンク２１と電解槽
２２とは食塩水の供給管路２５ａを介して互いに連結さ
れているとともに、電解槽２２と調製タンク２３とは電
解生成水の供給管路２５ｂを介して互いに連結され、か
つ調製タンク２３は流出管路２５ｃを介して図示しない
殺菌水の貯留タンクに連結されている。FIG. 2 schematically shows a manufacturing apparatus 20 for carrying out the second manufacturing method of the present invention. The manufacturing apparatus 20 includes a storage tank 21 for a diluted saline solution to be electrolyzed, an electrolytic tank 22, a preparation tank 23 for electrolyzed water, and a pH adjusting unit 24. The storage tank 21 and the electrolytic tank 22 are The electrolytic tank 22 and the preparation tank 23 are connected to each other via a supply pipe 25b of the electrolyzed water, and the preparation tank 23 is connected via an outflow pipe 25c. Connected to a storage tank (not shown) for sterilizing water.
【００２５】電解槽２２は、槽本体２２ａ内に一対の電
極２２ｂ，２２ｃを配設されて構成されている無隔膜電
解槽であり、各電極２２ｂ，２２ｃには直流電源２２ｄ
が接続されていて、一方の電極２２ｂが正極に、かつ他
方の電極２２ｃが負極になっている。なお、供給管路２
５ａには、供給ポンプ２６ａと開閉バルブ２６ｂが配設
され、かつ流出管路２５ｃには流出ポンプ２６ｃが配設
されている。The electrolytic cell 22 is a non-diaphragm electrolytic cell in which a pair of electrodes 22b and 22c are disposed in a cell main body 22a, and a DC power supply 22d is provided to each of the electrodes 22b and 22c.
Are connected, one electrode 22b is a positive electrode and the other electrode 22c is a negative electrode. In addition, supply line 2
A supply pump 26a and an opening / closing valve 26b are provided in 5a, and an outflow pump 26c is provided in the outflow pipe 25c.
【００２６】当該製造装置２０においては、調製タンク
２３内の底部にｐＨ調整手段２４を構成する噴出管２４
ａが配設されており、噴出管２４ａは炭酸ガスボンベ２
４ｂに連結されている。噴出管２４ａは所定長さのパイ
プ状のもので、長手方向に多数の噴出孔を備え、炭酸ガ
スボンベ２４ｂからの炭酸ガスを調製タンク２３内に収
容している希薄食塩水にバブリング状態で供給すべく機
能する。In the manufacturing apparatus 20, the ejection pipe 24 constituting the pH adjusting means 24 is provided at the bottom of the preparation tank 23.
a is provided, and the ejection pipe 24a is provided with a carbon dioxide gas cylinder 2.
4b. The ejection pipe 24a is a pipe having a predetermined length, has a large number of ejection holes in the longitudinal direction, and supplies the carbon dioxide gas from the carbon dioxide gas cylinder 24b to the diluted saline solution contained in the preparation tank 23 in a bubbling state. It works to.
【００２７】当該製造装置２０を用いて殺菌水を製造す
るには、例えば０．１重量％の希薄食塩水を収容タンク
２１内に収容しておき、供給ポンプ２６ａの駆動により
開閉バルブ２６ｂを通して電解槽２２の槽本体２２ａ内
に供給する。供給された希薄食塩水は、槽本体２２ａ内
の電流の印加されている正負両電極２２ｂ，２２ｃ間を
流動する間に無隔膜電解され、槽本体２２ａ内にて生成
された電解生成水は供給管路２５ｂから調製タンク２３
へ供給される。In order to produce sterilized water using the production apparatus 20, for example, a 0.1% by weight diluted saline solution is stored in a storage tank 21, and the supply pump 26a is driven to drive the electrolytic solution through an open / close valve 26b. It is supplied into the tank body 22a of the tank 22. The supplied diluted saline solution is subjected to non-diaphragm electrolysis while flowing between the positive and negative electrodes 22b and 22c to which a current is applied in the tank main body 22a, and the electrolytically generated water generated in the tank main body 22a is supplied. Preparation tank 23 from line 25b
Supplied to
【００２８】調製タンク２３内では、炭酸ガスボンベ２
４ｂ内の炭酸ガスが噴出管２４ａを通して調製タンク２
３内に収容されている電解生成水に供給され、電解生成
水のｐＨを４〜５程度に調製する。ｐＨの調整された電
解生成水は、流出ポンプ２６ｃの駆動により流出管路２
５ｃを経て殺菌水の貯留タンクへ流出される。In the preparation tank 23, the carbon dioxide gas cylinder 2
The carbon dioxide gas in the preparation tank 2 is passed through the ejection pipe 24a.
3 is supplied to the electrolyzed water contained in the chamber 3, and the pH of the electrolyzed water is adjusted to about 4 to 5. The electrolysis water whose pH has been adjusted is supplied to the outflow line 2 by driving the outflow pump 26c.
After passing through 5c, it is discharged to the storage tank for sterilizing water.
【００２９】図３には、本発明の第３の製造方法を実施
するための製造装置３０が示されててる。当該製造装置
３０は、水の調製タンク３１、次亜塩素酸ソーダ水溶液
の収容タンク３２、ｐＨ調整手段３３、および制御手段
３４を備えている。調製タンク３１は、水の供給管路３
５ａに連結されているとともに、水の流出管路３５ｂに
連結されていて、その底部にはｐＨ調整手段３３を構成
する噴出管３３ａが配設されているとともに、頂部には
排気管３５ｃが連結されている。FIG. 3 shows a manufacturing apparatus 30 for carrying out the third manufacturing method of the present invention. The manufacturing apparatus 30 includes a water preparation tank 31, a sodium hypochlorite aqueous solution storage tank 32, a pH adjusting unit 33, and a control unit 34. The preparation tank 31 is provided with the water supply line 3
5a, and is connected to an outflow pipe 35b of water. An ejection pipe 33a constituting the pH adjusting means 33 is disposed at the bottom, and an exhaust pipe 35c is connected to the top. Have been.
【００３０】当該製造装置３０においては、供給管路３
５ａに開閉バルブ３６ａが配設されおり、また流出管路
３５ｂには、流出ポンプ３６ｂと流量調節バルブ３６ｃ
が配設されているとともに、収容タンク３２が定量バル
ブ３６ｄを介して連結されている。一方、調製タンク３
１の底部に配設されている噴出管３３ａには、炭酸ガス
ボンベ３３ｂが開閉バルブ３６ｅを介して連結されてい
るとともに、排気管３５ｃには圧力調節バルブ３６ｆが
配設されている。開閉バルブ３６ａ，３６ｅ、流出ポン
プ３６ｂ、流量調節バルブ３６ｃ、定量バルブ３６ｄ
は、制御手段３４にてそれらの動作を制御される。In the manufacturing apparatus 30, the supply line 3
An opening / closing valve 36a is provided at 5a, and an outflow pump 36b and a flow control valve 36c are provided at an outflow line 35b.
, And the storage tank 32 is connected via a fixed amount valve 36d. On the other hand, preparation tank 3
A carbon dioxide gas cylinder 33b is connected via an opening / closing valve 36e to the ejection pipe 33a provided at the bottom of the pump 1 and a pressure control valve 36f is provided to the exhaust pipe 35c. Opening / closing valves 36a, 36e, outflow pump 36b, flow control valve 36c, metering valve 36d
Are controlled by the control means 34.
【００３１】当該製造装置３０を使用して殺菌水を製造
するには、開閉バルブ３６ａを通して調製タンク３１に
水道水を供給して、フロートスイッチ３１ａの作動によ
り、貯水タンク３１内に一定量の水を貯留させ、この状
態で炭酸ガスボンベ３３ｂ内の炭酸ガスを噴出管３３ａ
を通して調製タンク３１内に一定量バブリング状態で供
給する。To produce sterilized water using the production apparatus 30, tap water is supplied to the preparation tank 31 through an opening / closing valve 36a, and a certain amount of water is supplied into the water storage tank 31 by operating the float switch 31a. Is stored, and in this state, the carbon dioxide gas in the carbon dioxide gas cylinder 33b is blown out by the ejection pipe 33a.
Is supplied into the preparation tank 31 in a bubbling state.
【００３２】これにより、炭酸ガスは調製タンク３１内
の水に溶解して、所定時間経過後調製タンク３１内の水
は飽和状態となってｐＨ５よりわずかに低い値の弱酸性
の水となる。この間、調製タンク３１内は圧力調節バル
ブ３６ｆの作用により一定圧力以下の状態に維持され
る。As a result, the carbon dioxide gas dissolves in the water in the preparation tank 31, and after a lapse of a predetermined time, the water in the preparation tank 31 becomes saturated and becomes weakly acidic water having a value slightly lower than pH5. During this time, the inside of the preparation tank 31 is maintained at a certain pressure or lower by the action of the pressure adjusting valve 36f.
【００３３】なお、炭酸ガスのバブリング状態での供給
は、調製タンク３１内に新しい水が導入された際に一定
時間行う。The supply of carbon dioxide in a bubbling state is performed for a certain time when new water is introduced into the preparation tank 31.
【００３４】弱酸性に調整された調製タンク３１内の水
は、流出ポンプ３６ｂの駆動により流量調節バルブ３６
ｃを通して、流出管路３５ｂへ一定流量流出され、この
流出水には収容タンク３２内に収容されている例えば濃
度１２重量％の次亜塩素酸ソーダ水溶液が、定量バルブ
３６ｄを通して一定量供給される。これにより、次亜塩
素酸ソーダ水溶液は弱酸性の水により希釈されるととも
にｐＨが調整され、例えばｐＨが４〜５．５で、有効塩
素量が２５ｐｐｍ以上の殺菌水となる。The water in the preparation tank 31 adjusted to be weakly acidic is supplied to the flow control valve 36 by driving the outflow pump 36b.
c through the outlet pipe 35b, a constant flow rate of the aqueous sodium hypochlorite solution having a concentration of, for example, 12% by weight contained in the storage tank 32 is supplied to the outflow water through the metering valve 36d. . As a result, the aqueous sodium hypochlorite solution is diluted with weakly acidic water and the pH is adjusted. For example, the sterilized water has a pH of 4 to 5.5 and an effective chlorine amount of 25 ppm or more.
【００３５】図４には、本発明の第３の製造方法を実施
するための他の一例に係る製造装置３０Ａが示されてい
る。当該製造装置３０Ａは、炭酸ガス供給源としてドラ
イアイスを採用しているもので、殺菌水製造タンク３７
を備えているとともに、製造装置３０と同様に、次亜塩
素酸ソーダ水溶液の収容タンク３２、および制御手段３
４を備えた構成となっており、製造装置３０が有する調
製タンク３１、およびｐＨ調整手段３３を備えていな
い。FIG. 4 shows a manufacturing apparatus 30A according to another example for carrying out the third manufacturing method of the present invention. The production apparatus 30A employs dry ice as a carbon dioxide gas supply source.
And the storage tank 32 for the aqueous sodium hypochlorite solution,
4 and is not provided with the preparation tank 31 and the pH adjusting means 33 of the manufacturing apparatus 30.
【００３６】当該製造装置３０Ａにおいて、殺菌水製造
タンク３７は、水の供給管路３８ａおよび殺菌水の流出
管路３８ｂに連結されているとともに、供給管路３８ｃ
を介して収容タンク３２に連結されている。また、殺菌
水製造タンク３７はフロートスイッチ３７ａを備えてい
るとともに、その底部には流出管路３８ｂの開口部に対
向する邪魔板３７ｂが立設されている。In the production apparatus 30A, the sterilizing water production tank 37 is connected to a water supply line 38a and a sterilization water outflow line 38b, and is connected to a supply line 38c.
Is connected to the storage tank 32 via the The sterilizing water production tank 37 is provided with a float switch 37a, and a baffle plate 37b is provided upright at the bottom thereof so as to face the opening of the outflow conduit 38b.
【００３７】当該製造装置３０Ａにおいては、供給管路
３８ａにストップバルブ３８ｄが配設され、また流出管
路３８ｂに流出ポンプ３８ｅと流量調節バルブ３８ｆが
配設されているとともに、供給管路３８ｃに定量供給ポ
ンプ３８ｇが配設されている。これらのストップバルブ
３８ｄ、流出ポンプ３８ｅ、定量供給ポンプ３８ｇは、
制御手段３４にてそれらの動作を制御される。In the manufacturing apparatus 30A, a stop valve 38d is provided in the supply line 38a, an outflow pump 38e and a flow control valve 38f are provided in the outflow line 38b, and the supply line 38c is provided in the supply line 38c. A fixed amount supply pump 38g is provided. The stop valve 38d, the outflow pump 38e, and the fixed amount supply pump 38g are
The operation is controlled by the control means 34.
【００３８】当該製造装置３０Ａを使用して殺菌水を製
造するには、ストップバルブ３８ｄを通して殺菌水製造
タンク３７内に水道水を供給して、フロートスイッチ３
７ａの作動により、殺菌水製造タンク３７内に一定量の
水を貯留させるとともに、収容タンク３２内の一定濃度
の次亜塩素酸ソーダ水溶液を一定量供給し、この状態の
水溶液に一定量のドライアイスＤＡを投入する。To produce sterilized water using the production apparatus 30A, tap water is supplied to the sterilized water production tank 37 through the stop valve 38d, and the float switch 3 is supplied.
By the operation of 7a, a certain amount of water is stored in the sterilizing water production tank 37, a certain amount of sodium hypochlorite aqueous solution having a certain concentration in the storage tank 32 is supplied, and a certain amount of dry solution is supplied to the aqueous solution in this state. Add ice DA.
【００３９】これにより、ドライスアイスＤＡは水溶液
中で揮発して炭酸ガスとなって水溶液に溶解して、所定
時間経過後には、殺菌水製造タンク３７内の水溶液は炭
酸ガスが飽和状態に溶解した状態となって、ｐＨが５前
後の弱酸性の水溶液、すなわち弱酸性殺菌水となる。な
お、弱酸性殺菌水が生成される時間、生成される弱酸性
殺菌水のｐＨは、次亜塩素酸ソーダの水溶液の濃度、水
量、ドライアイスの投入量によって異なるので、これら
の関係を予め実験により確認しておくことがよく、また
殺菌水製造タンク３７にｐＨセンサを設置してｐＨを確
認するようにするのがよい。As a result, the dry ice DA is volatilized in the aqueous solution to become carbon dioxide gas and dissolved in the aqueous solution. After a lapse of a predetermined time, the aqueous solution in the sterilizing water production tank 37 is dissolved in the carbon dioxide gas in a saturated state. In this state, the solution becomes a weakly acidic aqueous solution having a pH of about 5, that is, a weakly acidic sterilized water. The time during which the weakly acidic sterilized water is generated and the pH of the weakly acidic sterilized water generated vary depending on the concentration of the aqueous solution of sodium hypochlorite, the amount of water, and the amount of dry ice charged. It is preferable to check the pH by installing a pH sensor in the sterilizing water production tank 37.
【００４０】図５には、本発明の第３の製造方法を実施
するためのさらに他の一例に係る製造装置３０Ｂが示さ
れている。当該製造装置３０Ｂは、炭酸ガス供給源とし
てドライアイスを採用しているもので、殺菌水製造容器
３９からなる携帯用に形成されており、殺菌水製造容器
３９の開口部は取外し可能な蓋３９ａにて気密的に閉塞
されるとともに、殺菌水製造容器３９内には蓋３９ａを
貫通する流出パイプ３９ｂが延びている。FIG. 5 shows a manufacturing apparatus 30B according to still another example for carrying out the third manufacturing method of the present invention. The manufacturing apparatus 30B employs dry ice as a carbon dioxide gas supply source, is formed as a portable device including a sterilizing water producing container 39, and an opening of the sterilizing water producing container 39 has a removable lid 39a. , And an outflow pipe 39b extending through the lid 39a extends into the sterilized water production container 39.
【００４１】当該製造装置３０Ｂを使用して殺菌水を製
造するには、殺菌水製造容器３９内に所定濃度に調整さ
れた次亜塩素酸ソーダ水溶液と、所定量のドライアイス
ＤＡを収容して、殺菌水製造容器３９の開口部を蓋３９
ａにより密閉する。これにより、ドライアイスＤＡが気
化して次亜塩素酸ソーダ水溶液中に溶解するとともに、
殺菌水製造容器３９の内圧が上昇し、所定のｐＨに調整
された弱酸性殺菌水が流出パイプ３９ｂから流量調節バ
ルブ３９ｃを通して流出する。弱酸性殺菌水の流出量
は、流量調節バルブ３９ｃにて調整される。To produce sterilized water using the production apparatus 30B, a sterilized aqueous solution of sodium hypochlorite adjusted to a predetermined concentration and a predetermined amount of dry ice DA are stored in a sterilization water production container 39. The opening of the sterilizing water production container 39 is
Seal with a. Thereby, while the dry ice DA is vaporized and dissolved in the aqueous sodium hypochlorite solution,
The internal pressure of the sterilizing water production container 39 rises, and weakly acidic sterilizing water adjusted to a predetermined pH flows out of the outflow pipe 39b through the flow control valve 39c. The outflow amount of the weakly acidic sterilizing water is adjusted by the flow control valve 39c.
【図１】本発明の第１の製造方法を実施するための製造
装置を示す概略構成図である。FIG. 1 is a schematic configuration diagram showing a manufacturing apparatus for performing a first manufacturing method of the present invention.
【図２】本発明の第２の製造方法を実施するための製造
装置を示す概略構成図でである。FIG. 2 is a schematic configuration diagram showing a manufacturing apparatus for carrying out a second manufacturing method of the present invention.
【図３】本発明の第３の製造方法を実施するための製造
装置を示す概略構成図でである。FIG. 3 is a schematic configuration diagram showing a manufacturing apparatus for carrying out a third manufacturing method of the present invention.
【図４】本発明の第３の製造方法を実施するための他の
製造装置を示す概略構成図である。FIG. 4 is a schematic configuration diagram showing another manufacturing apparatus for performing a third manufacturing method of the present invention.
【図５】本発明の第３の製造方法を実施するためのさら
に他の製造装置を示す概略構成図である。FIG. 5 is a schematic configuration diagram showing still another manufacturing apparatus for carrying out a third manufacturing method of the present invention.
【図６】食塩水中に一定量の炭酸ガスをバブリング状態
で供給した場合の食塩水のｐＨの経時的変化を示すグラ
フである。FIG. 6 is a graph showing the change over time in the pH of a saline solution when a certain amount of carbon dioxide gas is supplied into the saline solution in a bubbling state.
【図７】食塩水中に炭酸ガスを飽和状態に溶解した後の
食塩水のｐＨの経過時的変化を示すグラフである。FIG. 7 is a graph showing the change over time of the pH of a saline solution after dissolving carbon dioxide in the saline solution in a saturated state.
１０…製造装置、１１…調製タンク、１２…電解槽、１
３…ｐＨ調整手段、１３ａ…噴出管、１３ｂ…炭酸ガス
ボンベ、２０…製造装置、２１…収容タンク、２２…電
解槽、２３…調製タンク、２４…ｐＨ調整手段、２４ａ
…噴出管、２４ｂ…炭酸ガスボンベ、３０，３０Ａ，３
０Ｂ…製造装置、３１…調製タンク、３２…収容タン
ク、３３…ｐＨ調整手段、３３ａ…噴出管、３３ｂ…炭
酸ガスボンベ、３４…制御手段、３５ｂ，３８ｂ…流出
管路、３６ｃ，３８ｆ，３９ｃ…流量調節バルブ、３６
ｄ…定量バルブ、３７…殺菌水製造タンク、３８ｇ…定
量供給ポンプ、３９…殺菌水製造容器、３９ｂ…流出パ
イプ。10: Manufacturing equipment, 11: Preparation tank, 12: Electrolyzer, 1
3 ... pH adjusting means, 13a ... Squirting pipe, 13b ... Carbon dioxide gas cylinder, 20 ... Manufacturing equipment, 21 ... Storage tank, 22 ... Electrolysis tank, 23 ... Preparation tank, 24 ... pH adjusting means, 24a
... Squirting pipe, 24b ... Carbon dioxide gas cylinder, 30, 30A, 3
0B: Manufacturing apparatus, 31: Preparation tank, 32: Storage tank, 33: pH adjusting means, 33a: Spouting pipe, 33b: Carbon dioxide gas cylinder, 34: Control means, 35b, 38b: Outflow pipe, 36c, 38f, 39c ... Flow control valve, 36
d: fixed amount valve, 37: sterilized water production tank, 38 g: fixed amount supply pump, 39: sterilized water production container, 39b: outflow pipe.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０２Ｆ 1/50 ５５０ Ｃ０２Ｆ 1/50 ５６０Ｆ ５６０ 1/76 Ａ 1/76 Ａ２３Ｌ 2/00 Ｖ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification number Agency reference number FI Technical display location C02F 1/50 550 C02F 1/50 560F 560 1/76 A 1/76 A23L 2/00 V
Claims (6)
水の製造方法であり、食塩水を無隔膜電解するのに先だ
って炭酸ガスを使用してｐＨ調整し、その後無隔膜電解
することを特徴する弱酸性の塩素系殺菌水の製造方法。1. A method for producing a weakly acidic chlorine-based sterilizing water containing chlorine as an active ingredient, wherein the pH is adjusted using carbon dioxide gas before electrolysis of a saline solution without a diaphragm, and thereafter the electrolysis is performed without a diaphragm. A method for producing a weakly acidic chlorine-based sterilizing water, characterized by the following.
水の製造方法であり、食塩水を無隔膜電解して生成され
た電解水を炭酸ガスを使用してｐＨ調整することを特徴
する弱酸性の塩素系殺菌水の製造方法。2. A method for producing a weakly acidic chlorine-based sterilizing water containing chlorine as an active ingredient, wherein the pH of the electrolyzed water generated by electrolyzing a saline solution without a diaphragm is adjusted using carbon dioxide gas. Method for producing weakly acidic chlorine-based sterilizing water.
水の製造方法であり、次亜塩素酸水溶液を炭酸ガスを使
用してｐＨ調整することを特徴とする弱酸性の塩素系殺
菌水の製造方法。3. A method for producing a weakly acidic chlorine-based sterilizing water containing chlorine as an active ingredient, wherein the pH of an aqueous hypochlorous acid solution is adjusted using carbon dioxide gas. Water production method.
水の製造方法において、炭酸ガスとしてガスボンベに収
納されている炭酸ガスを採用することを特徴とする弱酸
性の塩素系殺菌水の製造方法。4. The weakly acidic chlorine-based sterilizing water according to claim 1, wherein the carbon dioxide gas contained in the gas cylinder is used as the carbon dioxide gas. Manufacturing method.
において、炭酸ガスをバブリングして各被ｐＨ調整水溶
液に供給することを特徴とする弱酸性の塩素系殺菌水の
製造方法。5. The method for producing chlorine-based sterilized water according to claim 4, wherein carbon dioxide gas is bubbled and supplied to each of the aqueous solutions to be pH-adjusted.
水の製造方法において、炭酸ガスとしてドライアイスを
採用することを特徴とする弱酸性の塩素系殺菌水の製造
方法。6. The method for producing sterilized chlorine-based water according to claim 1, wherein dry ice is used as carbon dioxide gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16485696A JP3728018B2 (en) | 1996-05-10 | 1996-06-25 | Weakly acidic chlorinated water, method and apparatus for producing the same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11664196 | 1996-05-10 | ||
| JP8-116641 | 1996-05-10 | ||
| JP16485696A JP3728018B2 (en) | 1996-05-10 | 1996-06-25 | Weakly acidic chlorinated water, method and apparatus for producing the same |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPH1024294A true JPH1024294A (en) | 1998-01-27 |
| JPH1024294A5 JPH1024294A5 (en) | 2004-11-11 |
| JP3728018B2 JP3728018B2 (en) | 2005-12-21 |
Family
ID=26454939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16485696A Expired - Fee Related JP3728018B2 (en) | 1996-05-10 | 1996-06-25 | Weakly acidic chlorinated water, method and apparatus for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3728018B2 (en) |
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| JPH11239791A (en) * | 1998-02-24 | 1999-09-07 | Fuji Electric Co Ltd | Electrolyzed water supply device |
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| WO2003057261A1 (en) * | 2001-12-28 | 2003-07-17 | Yokohama Tlo Company, Ltd. | Method of supplying aqueous solution for sterilization and disinfection and method of using the same |
| JP2004305472A (en) * | 2003-04-08 | 2004-11-04 | Mitsubishi Rayon Co Ltd | Apparatus and method for producing weak acid germicide |
| WO2006090869A1 (en) * | 2005-02-23 | 2006-08-31 | Veeta Inc. | Process for producing sterile water containing hypochlorous acid or chlorous acid as its main component and apparatus therefor |
| JP2006263701A (en) * | 2005-02-23 | 2006-10-05 | Tatsuo Okazaki | Method and apparatus for producing sterile water containing carbon dioxide, slight amount of which can be discharged |
| JP2006320899A (en) * | 2005-04-21 | 2006-11-30 | Viita Kk | Method and apparatus for producing sterilizing water containing carbon dioxide gas capable of controlling carbon dioxide gas content |
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| JP2006263701A (en) * | 2005-02-23 | 2006-10-05 | Tatsuo Okazaki | Method and apparatus for producing sterile water containing carbon dioxide, slight amount of which can be discharged |
| JP2006320899A (en) * | 2005-04-21 | 2006-11-30 | Viita Kk | Method and apparatus for producing sterilizing water containing carbon dioxide gas capable of controlling carbon dioxide gas content |
| JP2007283167A (en) * | 2006-04-13 | 2007-11-01 | Hirose Electric Co Ltd | Slightly acidic water generator |
| WO2009098873A1 (en) * | 2008-02-08 | 2009-08-13 | Noguchi Dental Medical Research Institute | Sterilized water, and method and device for producing the water |
| 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 |
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