JPH0490891A - Preparation of ozone water - Google Patents
Preparation of ozone waterInfo
- Publication number
- JPH0490891A JPH0490891A JP20732090A JP20732090A JPH0490891A JP H0490891 A JPH0490891 A JP H0490891A JP 20732090 A JP20732090 A JP 20732090A JP 20732090 A JP20732090 A JP 20732090A JP H0490891 A JPH0490891 A JP H0490891A
- Authority
- JP
- Japan
- Prior art keywords
- raw water
- ozone
- water
- carbon dioxide
- supplied
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 95
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 51
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 17
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 17
- 230000002378 acidificating effect Effects 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000003860 storage Methods 0.000 abstract description 12
- 238000010521 absorption reaction Methods 0.000 abstract description 11
- 238000003756 stirring Methods 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 230000001954 sterilising effect Effects 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- -1 chlorine ions Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229960001701 chloroform Drugs 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 230000021962 pH elevation Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000008673 vomiting Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はオゾン水の製造方法、さらに詳しくはオゾンを
原水に吸収させることによって殺菌、浄化等を目的とし
て使用されるオゾン水を製造する方法に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a method for producing ozonated water, more specifically a method for producing ozonated water used for purposes such as sterilization and purification by absorbing ozone into raw water. Regarding.
（従来の技術）
周知のように、オゾンは優れた殺菌、浄化作用を有する
が、その毒性が極めて強いため、たとえば食品の殺菌や
手の洗浄等、実際に応用されるに際しては、水に吸収さ
せることによってオゾン水として用いられている。(Prior art) As is well known, ozone has excellent sterilizing and purifying effects, but its toxicity is extremely strong, so when it is actually used for food sterilization, hand washing, etc., it cannot be absorbed into water. It is used as ozonated water by
そして、従来このようなオゾン水は、ポンプ等によって
原水をオゾン水貯留槽内に絵送し、そのオゾン水貯留槽
にオゾンを絵送して原水に吸収させることによって製造
されていた。Conventionally, such ozonated water has been produced by pumping raw water into an ozonated water storage tank using a pump or the like, and then transporting ozone into the ozonated water storage tank and absorbing it into the raw water.
（発明か解決しようとする課題）
しかしながら、オゾンはそもそも水に対する吸収性か悪
く、従って上記従来の製造方法のように単にオゾンを原
水に混合して吸収させる方法ではオゾンを十分に原水中
に吸収させることかできない。(Problem to be solved by the invention) However, ozone has poor absorbency to water in the first place, so if the conventional production method described above is to simply mix ozone into raw water and absorb it, ozone cannot be sufficiently absorbed into raw water. The only thing I can do is let it happen.
従って、得られたオゾン水の濃度も低く、それに伴って
殺菌、浄化効果も低いものとなっていた。Therefore, the concentration of the ozonated water obtained was low, and the sterilization and purification effects were accordingly low.
また、原水に対するオゾンの吸収効率が低いため、その
分、吸収されないオゾンの量も多くなり、その結果、オ
ゾン貯留槽から排出すべき排オゾンの処理量も増大する
という問題点があった。Furthermore, since the absorption efficiency of ozone with respect to raw water is low, the amount of unabsorbed ozone increases accordingly, resulting in a problem that the amount of waste ozone to be treated that should be discharged from the ozone storage tank also increases.
本発明は、このような問題点を解決するためになされた
もので、原水に対するオゾンの吸収効率を高め、ひいて
は製造されるオゾン水の殺菌効果を向上させることを課
題とするものである。The present invention has been made to solve these problems, and aims to improve the absorption efficiency of ozone into raw water and, in turn, improve the bactericidal effect of ozonated water produced.
（’Ｊ題を解決するための手段）
本発明は、このような課題を解決せんとしてなされたも
ので、その課題を解決するための手段は、原水を予めｐ
Ｈ４，０〜６．５の範囲に弱酸性化した後、その原水に
オゾンを吸収させて製造することこある。(Means for Solving Problem 'J) The present invention has been made to solve such a problem, and the means for solving the problem is to pre-purify raw water.
It is sometimes produced by making the raw water weakly acidic to a range of H4.0 to 6.5 and then absorbing ozone into the raw water.
（作用）
すなわち、原水がｐＨ４，０〜６．５の範囲に弱酸性化
されると、オゾンが溶解され易くなり、従って原水に対
するオゾンの吸収効率が向上するのである。(Function) That is, when the raw water is made weakly acidic to a pH range of 4.0 to 6.5, ozone is easily dissolved, and therefore the absorption efficiency of ozone into the raw water is improved.
（実施例） 以下、本発明の実施例について図面に従って説明する。(Example) Embodiments of the present invention will be described below with reference to the drawings.
実施例１
先ず、第１図に示すように、原水をポンプ１から炭酸ガ
ス混合器２に給送した後、その炭酸ガス混合器２に外部
から炭酸ガスを給送して原水のｐＨを４．０〜６．５の
範囲の弱酸性にする。このように弱酸性化された原水は
、炭酸ガスの吸収により炭酸水となる。Example 1 First, as shown in FIG. 1, raw water is supplied from the pump 1 to the carbon dioxide gas mixer 2, and then carbon dioxide gas is supplied from the outside to the carbon dioxide gas mixer 2 to lower the pH of the raw water to 4. Make it slightly acidic in the range of .0 to 6.5. The raw water that has been made weakly acidic in this way becomes carbonated water by absorbing carbon dioxide gas.
次に、弱酸性化された原水（炭酸水）はエゼクタ３に給
送され、そのエゼクタ３には外部からオゾンが給送され
てオゾンと原水とか攪拌混合される。この結果、オゾン
が原水に吸収されることとなるのである。Next, the weakly acidified raw water (carbonated water) is fed to the ejector 3, and ozone is fed from the outside to the ejector 3, where the ozone and the raw water are stirred and mixed. As a result, ozone is absorbed into the raw water.
このようにしてオゾン水が得られ、さらにこのオゾン水
はオゾン水貯留槽４に給送されて、そのオゾン水貯留槽
４内で貯留される。In this way, ozonated water is obtained, and this ozonated water is further fed to the ozonated water storage tank 4 and stored in the ozonated water storage tank 4.
そして、そのオゾン水の使用時には、必要な■のオゾン
水がオゾン水貯留槽４の排出口６から排出されて利用さ
れるのである。When the ozonated water is used, the necessary ozonated water is discharged from the outlet 6 of the ozonated water storage tank 4 and used.
尚、原水に吸収されない過剰のオゾン水は、活性炭５に
吸曹されて排オゾン処理がなされる。Incidentally, excess ozonated water that is not absorbed by the raw water is absorbed by the activated carbon 5 and subjected to ozonation treatment.
実施例２
本実施例では、オゾンを原水に吸収する手段が上記実施
例１とは異なる。Example 2 In this example, the means for absorbing ozone into raw water is different from that in Example 1 above.
すなわち、ポンプ１から炭酸ガス混合器２に給送されて
弱酸性化された原水は、本実施例においては第２図に示
すようにそのままオゾン水貯留槽４に給送される。That is, raw water that has been made weakly acidic by being fed from the pump 1 to the carbon dioxide mixer 2 is fed as it is to the ozone water storage tank 4 as shown in FIG. 2 in this embodiment.
そして、オゾン水貯留槽４にはオゾン発生器７からオゾ
ンが給送され、オゾン水貯留槽４内において散気板８に
よって原水とオゾンとが攪拌混合されるのである。Then, ozone is supplied from the ozone generator 7 to the ozone water storage tank 4, and the raw water and ozone are stirred and mixed by the diffuser plate 8 in the ozone water storage tank 4.
従って、本実施例では上記実施例１のようなエゼクタは
不要となる。Therefore, in this embodiment, the ejector as in the first embodiment is not required.
試験例
上記のようにして製造されたオゾン水に関し、オゾンの
原水に対する嘔収効率を測定する試験を行った。Test Example Regarding the ozonated water produced as described above, a test was conducted to measure the vomiting efficiency of ozone with respect to raw water.
その結果を第３図のグラフに示す。The results are shown in the graph of FIG.
尚、測定条件は次のとおりである。The measurement conditions are as follows.
（１） 測定条件 （Ａ） 水温は２５℃で行った。(1) Measurement conditions (A) Water temperature was 25°C.
（Ｂ） 注入するオゾン濃度は８５００ｐｐｍとした
。(B) The ozone concentration injected was 8500 ppm.
（Ｃ） 原水の弱酸性化の調整は、上記実施例のよう
に炭酸ガスの注入により行った。(C) Adjustment to make the raw water weakly acidic was performed by injecting carbon dioxide gas as in the above example.
この弱酸性化原水のデータは、第３図においてロブロッ
トと△プロットで示される。The data of this weakly acidified raw water is shown as a loblot and a Δ plot in FIG.
（Ｄ） これに対して、比較例として用いられる原水
のアルカリ性化の調整は、水酸化ナトリウムによって行
った。(D) On the other hand, the alkalinization of the raw water used as a comparative example was adjusted using sodium hydroxide.
このアルカリ性化原水のデータは、第３図においてロブ
ロットと×プロットで示される。The data of this alkalinized raw water are shown as a loblot and an x plot in FIG.
（２）測定結果
上記第３図からも明らかなように、初期ｐＨが５．０（
ロブロット）及び６．０（△プロット）の原水の場合に
は、短時間でオゾンを効率的に吸収し、１５〜２０分で
高濃度のオゾン水が得られた。ちなみに２０分では双方
とも約１゜７ｍｇ／ＩＩのオゾン水が得られ、初期ｐ）
（７，３（ロブロット）の原水の２０分後の濃度１．３
ｍｇ、／２や、初期ｐＨ９，０（Ｘプロット）の原水の
２０分後の濃度０．４４１１１ｇ／ｉに比べてオゾンの
吸収効率が著しく良好であった。(2) Measurement results As is clear from Figure 3 above, the initial pH was 5.0 (
In the case of raw water with a concentration of 6.0 (Δ plot) and 6.0 (Δ plot), ozone was efficiently absorbed in a short period of time, and highly concentrated ozonated water was obtained in 15 to 20 minutes. By the way, in 20 minutes, ozonated water of about 1°7mg/II was obtained in both cases, and the initial p)
(7,3 (Loblot) raw water concentration 1.3 after 20 minutes
The ozone absorption efficiency was significantly better than that of raw water with an initial pH of 9.0 (X plot) and a concentration of 0.44111 g/i after 20 minutes.
他の実施例
尚、原水と炭酸ガスとの混合手段は、上記実施例のよう
なエゼクタや散気板による手段に限らず、これ以外の手
段であってもよい。Other Embodiments The means for mixing raw water and carbon dioxide gas is not limited to the ejector or diffuser plate as in the above embodiments, but may be other means.
また、原水を弱酸性化する手段も、該実施例のような炭
酸ガス注入による手段に限らない。たとえば、炭酸ガス
とともに塩酸、塩素イオン等を添加することも可能であ
り、また、塩酸、塩素イオンを単独で添加することも可
能である。Further, the means for making the raw water weakly acidic is not limited to the method of injecting carbon dioxide gas as in the embodiment. For example, it is possible to add hydrochloric acid, chlorine ions, etc. together with carbon dioxide gas, or it is also possible to add hydrochloric acid and chlorine ions alone.
いずれにしても、要はオゾン恨収前に原水がｐＨ４，０
〜６．５の範囲の弱酸性に調整されればよいのである。In any case, the point is that the raw water has a pH of 4.0 before ozone absorption.
It is sufficient if the acidity is adjusted to be weakly acidic in the range of ~6.5.
ただし、強塩基である塩酸を用いる場合には、弱酸性に
調整するのが容易ではないため、ｐＨのコントロール装
置が必要となり、またトリクロルメタン等の副産物が生
成される等の問題点があり、この点に鑑みると、上記実
施例のような炭酸ガスを用いるのが好ましい。However, when using hydrochloric acid, which is a strong base, it is not easy to adjust it to a weak acidity, so a pH control device is required, and there are problems such as by-products such as trichloromethane being generated. In view of this point, it is preferable to use carbon dioxide gas as in the above embodiment.
さらに、原水やオゾン、炭酸ガス等の給送手段も問うも
のではない。Furthermore, the means for supplying raw water, ozone, carbon dioxide, etc. is not a problem.
尚、オゾン水は、一般に０．１〜５ｐｐｍの濃度で優れ
た殺菌効果を有する反面、この濃度の範囲内において、
濃度が高い程オゾンの吸収効率が低下するが、本発明に
おいては予め原水を弱酸性化してオゾンの吸収効率を高
めることにより、上記濃度の範囲内でのオゾン水に一層
有効に適用できることとなった。Although ozonated water generally has an excellent sterilizing effect at a concentration of 0.1 to 5 ppm, within this concentration range,
The higher the concentration, the lower the ozone absorption efficiency, but in the present invention, by making the raw water weakly acidic in advance to increase the ozone absorption efficiency, it can be applied more effectively to ozonated water within the above concentration range. Ta.
（発明の効果）
叙上のように、本発明は、原水を予め弱酸性化した後に
、その原水にオゾンを吸収させてオゾン水を製造する方
法であるため、オゾンか溶解され易くなり、原水に対す
るオゾンの吸収効率が著しく向上することとなった。(Effects of the Invention) As described above, the present invention is a method for producing ozonated water by making raw water slightly acidic in advance and then absorbing ozone into the raw water. This resulted in a significant improvement in the ozone absorption efficiency.
ちなみに本発明では、単にオゾンを吸収させる従来のオ
ゾンの製造方法に比べて、オゾンの吸収効率が約１．５
倍になるに至った。By the way, in the present invention, the ozone absorption efficiency is about 1.5 compared to the conventional ozone production method that simply absorbs ozone.
It has now doubled.
特に、本発明では原水をｐＨ４，０〜６，５の範囲に弱
酸性化したために、オゾン注入後、短時間で高濃度のオ
ゾン水が得られることとなった。In particular, in the present invention, since the raw water is slightly acidified to a pH range of 4.0 to 6.5, highly concentrated ozonated water can be obtained in a short time after ozone injection.
さらに、オゾンの吸収効率が向上する結果、排オゾンの
処理量も従来に比べて低減するという利点がある。Furthermore, as a result of improved ozone absorption efficiency, there is an advantage that the amount of waste ozone to be treated is also reduced compared to the conventional method.
第１図は一実施例としての製造工程の模式図。
第２図は他実施例としての製造工程の模式図。
第３図はｐＨの変化によるオゾンの溶解濃度を示すグラ
フ。
２・・・炭酸ガス混合器 ３・・・エゼクタ４・・・
オゾン水貯留槽
ｊＩ １ 図
第ｚｙｊFIG. 1 is a schematic diagram of a manufacturing process as an example. FIG. 2 is a schematic diagram of the manufacturing process as another embodiment. FIG. 3 is a graph showing the dissolved concentration of ozone due to changes in pH. 2... Carbon dioxide mixer 3... Ejector 4...
Ozone water storage tank jI 1 Figure zyj
Claims (1)
た後、その原水にオゾンを吸収させて製造することを特
徴とするオゾン水の製造方法。 ２、原水を弱酸性化する手段が、炭酸ガスを原水に吸収
させる手段である請求項１記載のオゾン水の製造方法。 ３、原水にオゾンを吸収させる手段が、エゼクタ３によ
る手段である請求項１または請求項２記載のオゾン水の
製造方法。 ４、原水にオゾンを吸収させる手段が、散気板８による
手段である請求項１または請求項２記載のオゾン水の製
造方法。[Claims] 1. A method for producing ozonated water, which comprises making raw water slightly acidic to a pH range of 4.0 to 6.5 in advance, and then absorbing ozone into the raw water. 2. The method for producing ozonated water according to claim 1, wherein the means for making the raw water weakly acidic is a means for absorbing carbon dioxide gas into the raw water. 3. The method for producing ozonated water according to claim 1 or 2, wherein the means for absorbing ozone into the raw water is a means using an ejector 3. 4. The method for producing ozonated water according to claim 1 or 2, wherein the means for absorbing ozone into the raw water is a means using a diffuser plate 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20732090A JPH0490891A (en) | 1990-08-03 | 1990-08-03 | Preparation of ozone water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20732090A JPH0490891A (en) | 1990-08-03 | 1990-08-03 | Preparation of ozone water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0490891A true JPH0490891A (en) | 1992-03-24 |
Family
ID=16537818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20732090A Pending JPH0490891A (en) | 1990-08-03 | 1990-08-03 | Preparation of ozone water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0490891A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06292822A (en) * | 1992-04-03 | 1994-10-21 | Jinzo Nagahiro | Production of high-concentration ozonized water and apparatus for production of high-concentration ozonized water |
| JP2002018454A (en) * | 2000-07-05 | 2002-01-22 | Kurita Water Ind Ltd | Apparatus for supplying ozone-dissolved water |
| JP2006145141A (en) * | 2004-11-22 | 2006-06-08 | Nomura Micro Sci Co Ltd | Method and device for manufacturing ozone ice |
| JP2008237950A (en) * | 2007-03-23 | 2008-10-09 | Reo Laboratory Co Ltd | Production method for hydroxyl radical-containing water and hydroxyl radical-containing water |
| JP2014188032A (en) * | 2013-03-26 | 2014-10-06 | Ihi Corp | Material deterioration suppressing disinfection solution |
| JP2015042397A (en) * | 2013-08-26 | 2015-03-05 | 株式会社デザイアン | Ozone water generator |
-
1990
- 1990-08-03 JP JP20732090A patent/JPH0490891A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06292822A (en) * | 1992-04-03 | 1994-10-21 | Jinzo Nagahiro | Production of high-concentration ozonized water and apparatus for production of high-concentration ozonized water |
| JP2002018454A (en) * | 2000-07-05 | 2002-01-22 | Kurita Water Ind Ltd | Apparatus for supplying ozone-dissolved water |
| JP4538702B2 (en) * | 2000-07-05 | 2010-09-08 | 栗田工業株式会社 | Ozone dissolved water supply device |
| JP2006145141A (en) * | 2004-11-22 | 2006-06-08 | Nomura Micro Sci Co Ltd | Method and device for manufacturing ozone ice |
| JP2008237950A (en) * | 2007-03-23 | 2008-10-09 | Reo Laboratory Co Ltd | Production method for hydroxyl radical-containing water and hydroxyl radical-containing water |
| JP2014188032A (en) * | 2013-03-26 | 2014-10-06 | Ihi Corp | Material deterioration suppressing disinfection solution |
| JP2015042397A (en) * | 2013-08-26 | 2015-03-05 | 株式会社デザイアン | Ozone water generator |
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