JPH0458341B2 - - Google Patents
Info
- Publication number
- JPH0458341B2 JPH0458341B2 JP63185584A JP18558488A JPH0458341B2 JP H0458341 B2 JPH0458341 B2 JP H0458341B2 JP 63185584 A JP63185584 A JP 63185584A JP 18558488 A JP18558488 A JP 18558488A JP H0458341 B2 JPH0458341 B2 JP H0458341B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- working electrode
- reactor
- sterilization
- sterilization device
- 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.)
- Expired - Lifetime
Links
- 230000001954 sterilising effect Effects 0.000 claims description 32
- 238000004659 sterilization and disinfection Methods 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 16
- 239000012528 membrane Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 239000003456 ion exchange resin Substances 0.000 claims description 2
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 26
- 230000000694 effects Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 241000588724 Escherichia coli Species 0.000 description 5
- 239000005515 coenzyme Substances 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 230000004083 survival effect Effects 0.000 description 3
- 229920001817 Agar Polymers 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- RGJOEKWQDUBAIZ-IBOSZNHHSA-N CoASH Chemical compound O[C@@H]1[C@H](OP(O)(O)=O)[C@@H](COP(O)(=O)OP(O)(=O)OCC(C)(C)[C@@H](O)C(=O)NCCC(=O)NCCS)O[C@H]1N1C2=NC=NC(N)=C2N=C1 RGJOEKWQDUBAIZ-IBOSZNHHSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000008272 agar Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- RGJOEKWQDUBAIZ-UHFFFAOYSA-N coenzime A Natural products OC1C(OP(O)(O)=O)C(COP(O)(=O)OP(O)(=O)OCC(C)(C)C(O)C(=O)NCCC(=O)NCCS)OC1N1C2=NC=NC(N)=C2N=C1 RGJOEKWQDUBAIZ-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000012258 culturing Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- -1 silver ions Chemical class 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000005516 coenzyme A Substances 0.000 description 1
- 229940093530 coenzyme a Drugs 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- KDTSHFARGAKYJN-UHFFFAOYSA-N dephosphocoenzyme A Natural products OC1C(O)C(COP(O)(=O)OP(O)(=O)OCC(C)(C)C(O)C(=O)NCCC(=O)NCCS)OC1N1C2=NC=NC(N)=C2N=C1 KDTSHFARGAKYJN-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Apparatus For Disinfection Or Sterilisation (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Description
〔産業上の利用分野〕
本発明は、微生物を電気化学的に非活性化して
滅菌させる装置及びその方法に関し、詳しくは確
実に非活性化して滅菌に至らせようとする技術に
係るものである。
〔従来の技術〕
処理水は最終段階として滅菌処理がなされなけ
ればならない。従来多くの滅菌法が行なわれ、塩
素を利用する方法は最も広く適用されているもの
である。そして他の滅菌法として、オゾン法、
銅・銀イオンを用いる法、高分子化合物による吸
着法、紫外線滅菌法等がある。そしてオゾン法と
しては特公昭52−154253号公報、塩素法としては
特開昭59−4490号公報、紫外線法としては実開昭
57−128390号公報等がある。又、微生物を電気化
学的に非活性化して滅菌に至らせる電気化学滅菌
法も提案され、光半導体微粒子を用いたものとし
て、特開昭61−761160号公報及び特公昭62−
66861号公報等のものがある。
〔発明が解決しようとする課題〕
ところが、塩素を利用する方法においては、発
癌の問題、水生生物への影響、その他いろいろな
問題が指摘されている。又、オゾン法、銅・銀イ
オンを用いる法、高分子化合物による吸着法、紫
外線滅菌法においては、形状がコンパクトである
こと、運転、保全が容易であること、騒音や健康
への悪影響がないこと等を考慮しなければならな
いものである。そして近年注目され提案されてい
る電気化学滅菌法においては、その良さが充分あ
りながら、上述した光に反応する光半導体を使用
するものや、電極を使用するものもあるが、実用
化に至らせ難いものとなつていた。
ところで、微生物の生細胞を電極に接触させる
と、生細胞内の補酵素（例えばcoenzyme Ａ；
CoA）が関係して電流が生じ、そしてこの補酵
素は電極上で酸化され、これに伴い生細胞の破壊
や活性が低下し、滅菌されることが伴つてる。こ
のことを利用して、生細胞に特有の電位を印加
し、生細胞内の補酵素を酸化し、生細胞を破壊
し、その活性を低下させ滅菌させるのが電気化学
滅菌法の原理である。かかる原理は伴つている
が、実用化に至らせるのが困難なのが現実である
本発明はこのような問題に鑑みてなされたもの
であり、その目的とするところは、電気化学滅菌
法を実用化でき、実際面で容易に使用することが
できる滅菌装置及びその方法を提供することにあ
る。
〔課題を解決するための手段〕
本発明の滅菌装置は、一方が作用電極１、他方
が対極２となる電極要素３及び参照電極１３とし
ての甘汞電極１３ａをリアクター４内に装填し、
リアクター４に処理液１１を導入する導入口５
と、各電極間を通過させた処理済液１２を導出さ
せる導出口６とを形成し、甘汞電極１３ａと作用
電極１間の電位差を0.7ボルト以上に、そして作
用電極１の面積とリアクター４の容積の比率を略
0.05センチメートル以下に設定して成ることを特
徴とするものである。
〔作 用〕
このように、処理液が通過する作用電極１と参
照電極１３としての甘汞電極１３ａ間の電位差を
0.7ボルト以上に、そして作用電極１の面積Ｓと
リアクター４の容積Ｖの比率Ｖ／Ｓを略0.05セン
チメートル以下に設定することで、後述する実施
例に示す種々の実験結果によつて、効率よく滅菌
させることができることが判り、上記電気化学滅
菌法を実用化に至らせることができたのである。
すなわち、作用電極１の面積Ｓとリアクター４
の容積Ｖの比率Ｖ／Ｓを略0.05セチチメートル以
下に設定した条件で、かつ生細胞に特有の電位を
印加することで、生細胞内の補酵素の酸化を効率
よく行い、生細胞を効率よく破壊し、その活性を
効率よく低下させ滅菌さるに至つたのである。
〔実施例〕
以下本発明の実施例を図面に基づいて詳述す
る。
第１図は本発明装置の概略図を示していて、リ
アクター４はガラス製もしくは絶縁性プラスチツ
ク等の円筒ケーシング７内にカーボンクロス８の
２枚の一方を作用電極１とし、他方を対極２と
し、これらの２枚のカーボンクロス８，８間にイ
オン交換膜１４を介装して両電極１，２間の短絡
防止を図つた電極要素３を過巻き状巻いて挿入
し、円筒ケーシング７の下端に形成された導入口
５からポンプ９を介して圧送された処理液１１を
作用電極１と対極２に間通して作用電極１及び対
極に接触させ、ポテンシヨスタツト１０を介して
作用電極１と参照電極１３としての甘汞電極１３
ａ間に印加された後述する特定電位により、処理
液１１中の微生物の生細胞の補酵素を酸化させ、
しかしてその活性を奪い、滅菌するようにし、そ
して滅菌がなされた処理済液１２を円筒ケーシン
グ７の上部に形成した導出口６から導出するよう
にしたものである。又、円筒ケーシング７の上端
には、参照電極（甘汞電極；以下S.C.Eと言う）
１３としての甘汞電極１３ａを配設してある。こ
の参照電極１３としての甘汞電極１３ａは化学反
応の生起による電位の変動を抑制するものであ
り、さらにたとえば、処理液１１又は処理済液１
２中の有機質成分が還元剤として働くことがあ
り、かかる場合に安定性がよいものである。以下
に実験結果を示す。
実験条件
(1) 試験水（模擬排水）
実験に使用した大腸菌は、Nutrient培地（肉
エキス１％、ペルトン１％、NaCl0.5％）を使用
し、37℃、12時間好気的に振とう培養したものを
用いた。培養に先立ち、培地は調整後120℃、10
分間オートクレーブにより加熱滅菌した。培養し
た大腸菌を集菌後、滅菌水道水に102〜103個／ml
になるように懸濁させたものを試料水とした。
(2) 滅菌効果の測定方法
測定すべき試料水から、ピペツトで１mlを採取
し、滅菌したシヤーレ上にまき、その上にあらか
じめ溶解しておいた寒天培地（Nutrient培地に
寒天を２％加えたもの）を約20ml注ぎ、ただちに
シヤーレを静かに振とうして、菌をよく分散させ
ながら、平板に固めた。これを37℃、24時間培養
した後、生成したコロニー数から菌数を測定し
た。滅菌効果は以下の式によつて求めた。
滅菌効率（大腸菌残存率、％）
＝試験後の試料水中のコロニー数／試験前の
試料水中のコロニー数×100
(3)実験装置の概要は第１図及び第２図に示してい
る。そしてリアクター４の寸法、容積等の概要を
表−１に示す。
[Industrial Application Field] The present invention relates to an apparatus and method for electrochemically deactivating microorganisms and sterilizing them, and more specifically, it relates to a technique for reliably deactivating microorganisms and sterilizing them. . [Prior Art] Treated water must be sterilized as a final step. Many sterilization methods have been used in the past, and the method using chlorine is the most widely used. Other sterilization methods include ozone method,
Methods include methods using copper and silver ions, adsorption methods using polymer compounds, and ultraviolet sterilization methods. The ozone method is published in Japanese Patent Publication No. 52-154253, the chlorine method is published in Japanese Patent Application Laid-open No. 59-4490, and the ultraviolet method is published in Japanese Patent Publication No. 59-4490.
There are publications such as No. 57-128390. In addition, an electrochemical sterilization method that electrochemically deactivates microorganisms to achieve sterilization has also been proposed, and as a method using optical semiconductor particles, Japanese Patent Application Laid-open No. 761160/1983 and Japanese Patent Publication No. 62/1982
There are publications such as Publication No. 66861. [Problems to be Solved by the Invention] However, in the method using chlorine, various problems have been pointed out, including carcinogenesis, effects on aquatic organisms, and others. In addition, the ozone method, method using copper and silver ions, adsorption method using polymer compounds, and ultraviolet sterilization method are compact in shape, easy to operate and maintain, and have no noise or adverse effects on health. This is something that must be taken into consideration. Electrochemical sterilization methods, which have attracted attention and have been proposed in recent years, have many advantages, but although some use photo-semiconductors that react to light as mentioned above, and others use electrodes, they have not yet been put into practical use. It was becoming difficult. By the way, when living cells of microorganisms are brought into contact with an electrode, coenzymes (e.g. coenzyme A;
(CoA), an electric current is generated, and this coenzyme is oxidized on the electrode, which is accompanied by the destruction of living cells, a decrease in their activity, and sterilization. Taking advantage of this, the principle of electrochemical sterilization is to apply a specific potential to living cells, oxidize the coenzymes within the living cells, destroy the living cells, reduce their activity, and sterilize them. . Although such a principle exists, the reality is that it is difficult to put it into practical use.The present invention was made in view of these problems, and its purpose is to put electrochemical sterilization into practical use. The object of the present invention is to provide a sterilization device and method that can be easily used in practice. [Means for Solving the Problems] The sterilization device of the present invention includes an electrode element 3 with one side serving as a working electrode 1 and the other serving as a counter electrode 2, and an electrode 13a serving as a reference electrode 13, which are loaded into a reactor 4.
Inlet port 5 for introducing treatment liquid 11 into reactor 4
and an outlet 6 for discharging the treated liquid 12 passed between each electrode, and the potential difference between the electrode 13a and the working electrode 1 is set to 0.7 volt or more, and the area of the working electrode 1 and the reactor 4 are formed. stands for the volume ratio of
It is characterized by being set to 0.05 cm or less. [Function] In this way, the potential difference between the working electrode 1, through which the processing liquid passes, and the red electrode 13a, which serves as the reference electrode 13, is reduced.
By setting the voltage to 0.7 volts or more and the ratio V/S of the area S of the working electrode 1 and the volume V of the reactor 4 to approximately 0.05 cm or less, the efficiency can be improved according to various experimental results shown in the examples below. It was found that the electrochemical sterilization method could be effectively sterilized, and the electrochemical sterilization method described above could be put into practical use. That is, the area S of the working electrode 1 and the reactor 4
By applying a potential specific to living cells under conditions where the ratio V/S of the volume V of This method effectively reduced its activity and led to sterilization. [Example] Hereinafter, an example of the present invention will be described in detail based on the drawings. FIG. 1 shows a schematic diagram of the apparatus of the present invention, in which a reactor 4 is constructed of two sheets of carbon cloth 8 in a cylindrical casing 7 made of glass or insulating plastic, one of which serves as a working electrode 1 and the other with a counter electrode 2. An ion exchange membrane 14 is interposed between these two carbon cloths 8, 8 to prevent a short circuit between the electrodes 1, 2. The electrode element 3 is overwound and inserted into the cylindrical casing 7. A processing liquid 11 is pumped through an inlet 5 formed at the lower end via a pump 9 and is brought into contact with the working electrode 1 and the counter electrode 2 by passing it through the working electrode 1 and the counter electrode 2. and the Amane electrode 13 as the reference electrode 13
oxidize the coenzymes of living cells of microorganisms in the treatment liquid 11 by a specific potential to be described later applied between a,
Thus, the activity is removed and sterilized, and the sterilized treated liquid 12 is led out from the outlet 6 formed in the upper part of the cylindrical casing 7. In addition, a reference electrode (hereinafter referred to as SCE) is provided at the upper end of the cylindrical casing 7.
A light electrode 13a as 13 is provided. The reference electrode 13a, which serves as the reference electrode 13, suppresses fluctuations in potential due to the occurrence of chemical reactions, and furthermore, for example,
The organic component in 2 may act as a reducing agent, and in such cases, stability is good. The experimental results are shown below. Experimental conditions (1) Test water (simulated wastewater) E. coli used in the experiment was incubated aerobically at 37°C for 12 hours using Nutrient medium (1% meat extract, 1% Pelton, 0.5% NaCl). The cultured one was used. Prior to culturing, the medium was conditioned and kept at 120°C for 10
It was sterilized by heating in an autoclave for a minute. After collecting the cultured E. coli, add 10 2 to 10 3 cells/ml to sterile tap water.
The suspension was used as sample water. (2) Method for measuring sterilization effectiveness Collect 1 ml of the sample water to be measured with a pipette, spread it on a sterilized petri dish, and place on top of it a pre-dissolved agar medium (2% agar added to Nutrient medium). Pour about 20 ml of the liquid into the cellulose, and immediately shake the shearle gently to disperse the bacteria well and solidify it on a flat plate. After culturing this at 37°C for 24 hours, the number of bacteria was determined from the number of colonies produced. The sterilization effect was calculated using the following formula. Sterilization efficiency (E. coli survival rate, %) = Number of colonies in the sample water after the test / Number of colonies in the sample water before the test x 100 (3) The outline of the experimental equipment is shown in Figures 1 and 2. A summary of the dimensions, volume, etc. of the reactor 4 is shown in Table 1.
以上要するに本発明は、処理液が通過する作用
電極と参照電極としての甘汞電極間の電位差を
0.7ボルト以上に、そして作用電極の面積とリア
クターの容積の比率を略0.05センチメートル以下
に設定してあるから、種々の実験結果により、効
率よく滅菌させることができることが判り、電気
化学滅菌法を実用化に至らせることができたので
ある。
すなわち、作用電極の面積とリアクターの容積
の比率を略0.05センチメートル以下に設定した条
件下で、かつ生細胞に特有の電位を印加すること
で、生細胞内の補酵素の酸化を効率よく行い、生
細胞を効率よく破壊し、その活性を効率よく低下
させ滅菌させるに至つたのである。しかもリアク
ターに参照電極としての甘汞電極を設けてあるか
ら、処理水中での化学反応の生起に起因する電位
変動を抑制でき、処理水の連続処理を安定して行
うことができるという利点がある。
又、作用電極と対極とが多孔質で形成されてい
るから、処理液との接触面積を大きくでき、接触
効果を高めるこができる。
又、作用電極及び対極がカーボンクロスで形成
されているから、電極の耐久性を増し、安価で容
易に多孔質の電極を得ることができる。
又、作用電極と対極間にイオン透過性の膜を配
置し、膜がイオン交換樹脂膜であるから、電極間
の絶縁を図り、イオン透過を可能にできる。
又、作用電極間に膜を配置して重ねて渦巻き状
にしてあるから、処理水との接触面積を増すこと
ができながら、リアクター内で処理水が混合する
のを防止でき、処理効率を高めるこができる。
又、リアクターの下方から処理液を導入し、上
方から処理済液を導出するから、最も適切、かつ
効率的な処理ができる。
又、処理液と作用電極及び対極との接触時間を
10分以上にするこで、充分な滅菌を行うことがで
きる。
In summary, the present invention reduces the potential difference between the working electrode through which the processing liquid passes and the reference electrode.
By setting the voltage to 0.7 volt or higher and the ratio of the working electrode area to the reactor volume to approximately 0.05 cm or less, various experimental results showed that efficient sterilization could be achieved, and electrochemical sterilization was adopted. They were able to put it into practical use. In other words, coenzymes in living cells can be oxidized efficiently under conditions where the ratio of the area of the working electrode to the volume of the reactor is approximately 0.05 cm or less, and by applying a potential specific to living cells. This led to the efficient destruction of living cells, efficient reduction of their activity, and sterilization. Moreover, since the reactor is equipped with a reference electrode, it is possible to suppress potential fluctuations caused by chemical reactions in the treated water, which has the advantage of allowing continuous and stable treatment of the treated water. . Further, since the working electrode and the counter electrode are formed of porous material, the contact area with the processing liquid can be increased, and the contact effect can be enhanced. Furthermore, since the working electrode and the counter electrode are made of carbon cloth, the durability of the electrode is increased, and a porous electrode can be easily obtained at low cost. Furthermore, since an ion permeable membrane is disposed between the working electrode and the counter electrode and the membrane is an ion exchange resin membrane, insulation between the electrodes can be achieved and ion permeation can be made possible. In addition, since the membrane is arranged between the working electrodes and stacked in a spiral shape, it is possible to increase the contact area with the treated water while preventing the treated water from mixing in the reactor, increasing treatment efficiency. I can row. Furthermore, since the treatment liquid is introduced from the bottom of the reactor and the treated liquid is taken out from the top, the most appropriate and efficient treatment can be achieved. In addition, the contact time between the processing solution and the working electrode and counter electrode is
Sufficient sterilization can be achieved by leaving it for 10 minutes or more.
第１図は本発明の一実施例の概略説明図、第２
図は同上の斜視図、第３図は同上の破断斜視図、
第４図は同上の印加電圧と滅菌率との関係を示す
グラフ、第５図は同上の静止系での接触時間と大
腸菌残存率の関係を示すグラフ、第６図は同上の
連続系での接触時間と大腸菌残存率の関係を示す
グラフであり、１は作用電極、２は対極、３は電
極要素、４はリアクター、５は導入口、６は導出
口、１３は参照電極、１３ａは甘汞電極である。
FIG. 1 is a schematic explanatory diagram of one embodiment of the present invention, and FIG.
The figure is a perspective view of the same as above, FIG. 3 is a broken perspective view of the same as above,
Figure 4 is a graph showing the relationship between applied voltage and sterilization rate in the same as above, Figure 5 is a graph showing the relationship between contact time and Escherichia coli survival rate in a static system in the same as above, and Figure 6 is a graph in a continuous system in the same as above. 1 is a graph showing the relationship between contact time and Escherichia coli survival rate, 1 is a working electrode, 2 is a counter electrode, 3 is an electrode element, 4 is a reactor, 5 is an inlet, 6 is an outlet, 13 is a reference electrode, and 13a is a sweet It is a solar electrode.
Claims (1)
及び参照電極としての甘汞電極をリアクター内に
装填し、リアクターに処理液を導入する導入口
と、各電極間を通過させた処理済液を導出させる
導出口とを形成し、甘汞電極と作用電極間の電位
差を0.7ボルト以上に、そして作用電極の面積と
リアクターの容積の比率を0.05センチメートル以
下に設定して成ることを特徴とする滅菌装置。 ２ 作用電極と対極とが多孔質で形成されている
ことを特徴とする請求項１記載の滅菌装置。 ３ 作用電極及び対極がカーボンクロスで形成さ
れていることを特徴とする請求項１もしくは請求
項２記載の滅菌装置。 ４ 作用電極と対極間にイオン透過性の膜を配置
して成ることを特徴とする請求項１記載の滅菌装
置。 ５ 膜がイオン交換樹脂膜であることを特徴とす
る請求項４記載の滅菌装置。 ６ 作用電極と対極間に膜を配置して重ねて渦巻
き状にして成ることを特徴とする請求項１もしく
は請求項４記載の滅菌装置。 ７ リアクターの下方から処理液を導入し、上方
から処理済液を導出することを特徴とする請求項
１記載の滅菌装置。 ８ 処理液と作用電極及び対極との接触時間を10
分以上にすることを特徴とする請求項１記載の滅
菌装置。[Scope of Claims] 1. An electrode element with one side serving as a working electrode and the other as a counter electrode, and an electrode element serving as a reference electrode are loaded into a reactor, and a treatment liquid is passed between an inlet for introducing the treatment liquid into the reactor and each electrode. forming a discharge port for discharging the treated liquid, setting the potential difference between the electrode and the working electrode to 0.7 volts or more, and setting the ratio of the area of the working electrode to the volume of the reactor to be 0.05 cm or less. A sterilizer comprising: 2. The sterilization device according to claim 1, wherein the working electrode and the counter electrode are formed of porous material. 3. The sterilization device according to claim 1 or 2, wherein the working electrode and the counter electrode are made of carbon cloth. 4. The sterilization device according to claim 1, further comprising an ion-permeable membrane disposed between the working electrode and the counter electrode. 5. The sterilization device according to claim 4, wherein the membrane is an ion exchange resin membrane. 6. The sterilization device according to claim 1 or claim 4, characterized in that a membrane is arranged between the working electrode and the counter electrode and is stacked in a spiral shape. 7. The sterilization device according to claim 1, wherein the processing liquid is introduced from the bottom of the reactor and the processed liquid is drawn out from the top. 8 The contact time between the treatment solution and the working electrode and counter electrode is 10
The sterilizer according to claim 1, wherein the sterilization time is at least 1 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63185584A JPH0236869A (en) | 1988-07-27 | 1988-07-27 | Sterrilizing device and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63185584A JPH0236869A (en) | 1988-07-27 | 1988-07-27 | Sterrilizing device and its method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0236869A JPH0236869A (en) | 1990-02-06 |
| JPH0458341B2 true JPH0458341B2 (en) | 1992-09-17 |
Family
ID=16173363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63185584A Granted JPH0236869A (en) | 1988-07-27 | 1988-07-27 | Sterrilizing device and its method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0236869A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101346275B1 (en) * | 2012-09-04 | 2014-01-03 | 삼성중공업 주식회사 | Method for driving yaw of wind power generator without cable twist |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6610937B2 (en) * | 2015-11-09 | 2019-11-27 | 清水建設株式会社 | Drug effect prediction method |
-
1988
- 1988-07-27 JP JP63185584A patent/JPH0236869A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101346275B1 (en) * | 2012-09-04 | 2014-01-03 | 삼성중공업 주식회사 | Method for driving yaw of wind power generator without cable twist |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0236869A (en) | 1990-02-06 |
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