JPH03193191A - Method for purifying drinking water - Google Patents
Method for purifying drinking waterInfo
- Publication number
- JPH03193191A JPH03193191A JP33561689A JP33561689A JPH03193191A JP H03193191 A JPH03193191 A JP H03193191A JP 33561689 A JP33561689 A JP 33561689A JP 33561689 A JP33561689 A JP 33561689A JP H03193191 A JPH03193191 A JP H03193191A
- Authority
- JP
- Japan
- Prior art keywords
- water
- rust
- bacteria
- drinking water
- activated carbon
- 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
- 235000020188 drinking water Nutrition 0.000 title claims abstract description 9
- 239000003651 drinking water Substances 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 title claims description 5
- 239000011941 photocatalyst Substances 0.000 claims abstract description 12
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000000746 purification Methods 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 31
- 241000894006 Bacteria Species 0.000 abstract description 12
- 239000012510 hollow fiber Substances 0.000 abstract description 9
- 239000012528 membrane Substances 0.000 abstract description 9
- -1 at first Substances 0.000 abstract description 4
- 238000013032 photocatalytic reaction Methods 0.000 abstract description 4
- 239000008213 purified water Substances 0.000 abstract description 2
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 abstract 1
- 239000007844 bleaching agent Substances 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000000428 dust Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 12
- 235000019645 odor Nutrition 0.000 description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000008399 tap water Substances 0.000 description 6
- 235000020679 tap water Nutrition 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 235000013162 Cocos nucifera Nutrition 0.000 description 3
- 244000060011 Cocos nucifera Species 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 230000001699 photocatalysis Effects 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- LFYXNXGVLGKVCJ-FBIMIBRVSA-N 2-methylisoborneol Chemical compound C1C[C@@]2(C)[C@](C)(O)C[C@@H]1C2(C)C LFYXNXGVLGKVCJ-FBIMIBRVSA-N 0.000 description 2
- LFYXNXGVLGKVCJ-UHFFFAOYSA-N 2-methylisoborneol Natural products C1CC2(C)C(C)(O)CC1C2(C)C LFYXNXGVLGKVCJ-UHFFFAOYSA-N 0.000 description 2
- GZSOSUNBTXMUFQ-NJGQXECBSA-N 5,7,3'-Trihydroxy-4'-methoxyflavone 7-O-rutinoside Natural products O(C[C@@H]1[C@@H](O)[C@H](O)[C@@H](O)[C@H](Oc2cc(O)c3C(=O)C=C(c4cc(O)c(OC)cc4)Oc3c2)O1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@H](C)O1 GZSOSUNBTXMUFQ-NJGQXECBSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- GZSOSUNBTXMUFQ-YFAPSIMESA-N diosmin Chemical compound C1=C(O)C(OC)=CC=C1C(OC1=C2)=CC(=O)C1=C(O)C=C2O[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO[C@H]2[C@@H]([C@H](O)[C@@H](O)[C@H](C)O2)O)O1 GZSOSUNBTXMUFQ-YFAPSIMESA-N 0.000 description 2
- 229960004352 diosmin Drugs 0.000 description 2
- IGBKNLGEMMEWKD-UHFFFAOYSA-N diosmin Natural products COc1ccc(cc1)C2=C(O)C(=O)c3c(O)cc(OC4OC(COC5OC(C)C(O)C(O)C5O)C(O)C(O)C4O)cc3O2 IGBKNLGEMMEWKD-UHFFFAOYSA-N 0.000 description 2
- DTGKSKDOIYIVQL-UHFFFAOYSA-N dl-isoborneol Natural products C1CC2(C)C(O)CC1C2(C)C DTGKSKDOIYIVQL-UHFFFAOYSA-N 0.000 description 2
- VUYDGVRIQRPHFX-UHFFFAOYSA-N hesperidin Natural products COc1cc(ccc1O)C2CC(=O)c3c(O)cc(OC4OC(COC5OC(O)C(O)C(O)C5O)C(O)C(O)C4O)cc3O2 VUYDGVRIQRPHFX-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 235000002566 Capsicum Nutrition 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 239000006002 Pepper Substances 0.000 description 1
- 235000016761 Piper aduncum Nutrition 0.000 description 1
- 235000017804 Piper guineense Nutrition 0.000 description 1
- 244000203593 Piper nigrum Species 0.000 description 1
- 235000008184 Piper nigrum Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Sorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は飲料に供する水を浄化する方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for purifying drinking water.
従来の技術
最近、水道水がおいしくなくなった。特に都市部及びそ
の周辺の水はまずい。その原因は原水の質の低下である
。原水の汚染により、アンモニア性窒素・鉄・マンガン
・有機物の除去、消毒・殺菌給配水中の細菌汚染の予防
のために使われる塩素の量が増えたことにより、カルキ
臭がきつくなり、また発癌性物質であるトリハロメタン
も増えている。さらに、水源の富栄養化によって増えた
藻類が出すジオスミンや２−メチルイソボルネオル（２
−ＭＩＢ）などによるカビ臭も強くなってきている。こ
のほか、給水管の老朽化、老朽しなくても材質そのもの
に問題がある場合、受水槽の管理が悪い場合などには、
さまざまな物質が溶は出したり、鉄さびや水垢が混入し
たりして、見た目も悪くまずい水、ときには安全性に問
題のある水が出ることもある。Conventional technology Recently, tap water has become less tasty. The water in and around urban areas is especially bad. The cause is a decline in the quality of raw water. Due to contamination of raw water, the amount of chlorine used to remove ammonia nitrogen, iron, manganese, and organic matter, and to disinfect and sterilize the water to prevent bacterial contamination has increased, resulting in a strong chlorine odor and cancer-causing substances. The chemical substance trihalomethane is also on the rise. Furthermore, diosmin and 2-methylisoborneol (2-methylisoborneol) are produced by algae that have increased due to eutrophication of water sources.
-MIB) and other mold odors are also becoming stronger. In addition, if the water supply pipe is aging, if there is a problem with the material itself even if it is not old, if the water tank is poorly managed, etc.
Various substances can be dissolved, iron rust and limescale can be mixed in, resulting in unsightly and unpalatable water, and sometimes even unsafe water.
一方、上記のような水道水の不快・有害な異臭異物を取
り除く機能を持った浄水器が、一般家庭でも使われるよ
うになった。この浄水器は活性炭と中空糸膜を使ったも
のが多い。活性炭としては椰子殻活性炭２石炭系活性炭
、活性炭繊維などが使われており、カルキ臭、かび臭、
有機物、それに赤水の一部を減らす効果がある。また、
活性炭に銀をコーティングしたものは、雑菌の繁殖を防
ぐ。中空糸膜は、外径０．３〜０．６ｍｍの管状の化学
繊維で、その管壁に０．０１〜０．１μｍの微細な孔が
無数に開いて、これがフィルターの役を果たす。この中
空糸膜により０．１μｍ以上の赤さびや水垢、細菌を除
去する。Meanwhile, water purifiers that have the function of removing unpleasant and harmful foreign substances from tap water, such as those mentioned above, have come to be used in ordinary households. Many of these water purifiers use activated carbon and hollow fiber membranes. Coconut shell activated carbon 2 coal-based activated carbon, activated carbon fiber, etc. are used as activated carbon.
It has the effect of reducing organic matter and some of the red water. Also,
Activated carbon coated with silver prevents the growth of bacteria. A hollow fiber membrane is a tubular chemical fiber with an outer diameter of 0.3 to 0.6 mm, and its tube wall has countless fine pores of 0.01 to 0.1 μm, which function as a filter. This hollow fiber membrane removes red rust, scale, and bacteria of 0.1 μm or more.
発明が解決しようとする課題
上記のように活性炭と中空糸膜を組み合わせると、ちょ
うどお互いにカバーしあうような働きになり、この組合
せが浄水器の主力になっている。Problems to be Solved by the Invention When activated carbon and hollow fiber membranes are combined as described above, they act as if they cover each other, and this combination is the mainstay of water purifiers.
しかし、活性炭はカルキ臭に対しては効果が大きくかな
り長く続くが、かび臭・トリハロメタンや他の有機物に
対しては効果は小さく、除去率の低下も速いという課題
がある。However, although activated carbon is highly effective against limescale odor and lasts for quite a long time, it is less effective against musty odor, trihalomethane, and other organic substances, and the removal rate declines quickly.
本発明は上記課題を解決するもので、おいしく健康によ
い水を得るための、飲料水の浄化方法を提供することを
目的としている。The present invention solves the above problems and aims to provide a method for purifying drinking water to obtain delicious and healthy water.
課題を解決するための手段
本発明は上記目的を達“成するために、ごみ・サビ・水
垢などを除いた飲料水を、紫外線を照射した光触媒層に
接触させるものである。Means for Solving the Problems In order to achieve the above object, the present invention brings drinking water from which dirt, rust, limescale, etc. have been removed to contact a photocatalyst layer irradiated with ultraviolet rays.
作用
半導体物質からなる光触媒層と非酸化性化合物である有
機物、および水あるいは酸素が共存する場合、光触媒層
に紫外線を照射すると、光触媒は紫外線の光りエネルギ
ーを吸収して励起し、有機物質が酸化分解する。したが
って、飲料水のかび臭の原因物質であるジオスミンや２
−ＭｒＢ、トリハロメタン、その他の有機物質を分解す
ることにより、臭いが無くなり、発癌性物質もなくなる
。When a photocatalytic layer made of a functional semiconductor material, an organic substance that is a non-oxidizing compound, and water or oxygen coexist, when the photocatalytic layer is irradiated with ultraviolet light, the photocatalyst absorbs the light energy of the ultraviolet light and is excited, causing the organic substance to oxidize. Disassemble. Therefore, diosmin and 2, which are responsible for the musty odor of drinking water,
- By decomposing MrB, trihalomethanes and other organic substances, odor and carcinogenic substances are eliminated.
また細菌も有機物であり、紫外線の殺菌作用と光触媒の
分解作用があいまって、より効果的に殺菌される。Bacteria are also organic substances, and the sterilization effect of ultraviolet rays and the decomposition effect of photocatalysts combine to more effectively sterilize bacteria.
ただし光触媒はごみのような固形物によって紫外線を遮
られたり、分解作用が効かないサビや水垢などの無機物
に覆われると、光触媒の能力が弱くなったり、次第に劣
化したりするので、本発明では、これらを取り除いてお
くものである。However, if the photocatalyst is blocked from ultraviolet rays by solid matter such as garbage, or if it is covered with inorganic matter such as rust or limescale that does not have an effective decomposition effect, the photocatalyst's ability will weaken or gradually deteriorate. , these should be removed.
実施例
以下、本発明の一実施例について第１図及び第２図を参
照しながら説明する。実施例においては第１図に示すよ
うに、水道水Ａは、活性炭層Ｂ。EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 and 2. In the example, as shown in FIG. 1, tap water A has an activated carbon layer B.
中空糸膜Ｃの後、光触媒反応槽りを経て浄化水Ｅとなる
。活性炭層Ｂでカルキ臭と赤水の一部を減らし、中空糸
膜Ｃで赤さびや水垢、細菌を除去する。活性炭としては
椰子殻活性炭９石炭系活性炭、活性炭繊維などいずれで
も良いが、ここでは良く洗浄され中性に調整された、粒
状の椰子殻活性炭が使った。また、活性炭には銀をコー
ティングして雑菌の繁殖を防いだ。中空糸膜Ｃとしては
ここではポリエチレン系を用いたが、ポリプロピレンや
ポリサルフォンでも良い。After the hollow fiber membrane C, the water becomes purified water E through a photocatalytic reaction tank. Activated carbon layer B reduces limescale odor and some of the red water, and hollow fiber membrane C removes red rust, limescale, and bacteria. The activated carbon may be coconut shell activated carbon 9, coal-based activated carbon, activated carbon fiber, or the like, but here, granular coconut shell activated carbon that has been thoroughly washed and adjusted to neutrality was used. The activated carbon was also coated with silver to prevent the growth of bacteria. Although polyethylene is used here as the hollow fiber membrane C, polypropylene or polysulfone may also be used.
光触媒反応槽りの実施例は第２図で説明する。An example of a photocatalytic reaction tank is illustrated in FIG.
左右対称′に二分割された反応槽容器１の内側にはほぼ
全面に、光触媒層２ａ、２ｂ、２ｃ、２ｄ。Photocatalyst layers 2a, 2b, 2c, and 2d are formed almost entirely on the inside of the reaction tank container 1, which is divided into two parts symmetrically.
２ｅが形成され、これら光触媒層２ａ、２ｂ、２ｃ、２
ｄ、２ｅと対向するように紫外線灯３ａ。2e is formed, and these photocatalyst layers 2a, 2b, 2c, 2
An ultraviolet lamp 3a faces d and 2e.
３ｂを、反応槽容器１の中心には攪拌機４を設けている
。また反応槽容器１の上部一端には配管５ａが、それと
反対側の下部一端には配管５ｂを形成し、それぞれコツ
クロ、７を設けている。3b, and a stirrer 4 is provided at the center of the reaction tank container 1. Further, a piping 5a is formed at one end of the upper part of the reaction tank container 1, and a piping 5b is formed at one end of the lower part on the opposite side, and a piping 7 is provided in each.
反応槽容器１は内容積２０ｅで紫外線で分解されないス
テンレスやガラスなどからなる。光触媒層２ａ、２ｂ、
２ｃ、２ｄ、２ｅは、アナターゼギ酸化チタン的３００
ｇ／！と酸化チタンの０゜３重量％に相当する白金を
セラミックペーパーに担持したものである。これはまず
セラミックペパーをチタニアゾルにデイツプして含浸し
た後、乾燥後４０００Ｃ〜７００℃で熱処理して酸化チ
タンを担持し、その後光り電析法で白金を付けた。The reaction tank container 1 has an internal volume of 20e and is made of stainless steel, glass, etc. that cannot be decomposed by ultraviolet light. Photocatalyst layers 2a, 2b,
2c, 2d, 2e are anatase titanium oxide 300
g/! Ceramic paper supports platinum equivalent to 0.3% by weight of titanium oxide. First, ceramic pepper was impregnated by dipping it in titania sol, then dried and heat treated at 4000C to 700C to support titanium oxide, and then platinum was applied by photoelectrodeposition.
紫外線灯３ａ、３ｂは１３ワツトの流水殺菌灯（松下電
器産業■製、ＧＬ１３−に／Ａ）である。The ultraviolet lamps 3a and 3b are 13 watt running water germicidal lamps (manufactured by Matsushita Electric Industrial Co., Ltd., GL13-N/A).
コック７を閉めてコツクロを開くと、水道水は活性炭層
、中空糸膜を経て、配管５ａより反応槽容器１に流入す
る。反応槽容器１が一杯になったところでコツクロを閉
め、ゆっくり攪拌機４を回転しながら紫外線灯３ａ、３
ｂを点灯する。このようにして約１時間水を処理する。When the cock 7 is closed and the drain is opened, tap water passes through the activated carbon layer and the hollow fiber membrane, and flows into the reaction tank container 1 from the pipe 5a. When the reaction tank container 1 is full, close the lid and turn on the ultraviolet lamps 3a and 3 while slowly rotating the stirrer 4.
Turn on b. Treat the water in this way for about 1 hour.
ここで紫外線灯３ａ、３ｂを点灯し約１時間処理した直
後と、紫外線灯３ａ、３ｂを点灯しないで約１時間放置
した場合の水をコック７を開けて配管５ｂより採取し、
下記の測定を行った。なおここで用いた水道水は、総ト
リハロメタン量が約９０ ｐ ｐ ｂでかび臭のするも
のであった。Here, water is collected from the pipe 5b by opening the cock 7, immediately after the ultraviolet lamps 3a and 3b are turned on and treated for about 1 hour, and when the ultraviolet lamps 3a and 3b are not turned on and left for about 1 hour.
The following measurements were performed. The tap water used here had a total trihalomethane content of about 90 ppb and had a musty odor.
測定１ 水道法の臭気測定方法に準じて官能で臭気を測定した。Measurement 1 The odor was measured visually according to the odor measurement method of the Water Supply Act.
測定２ ガスクロ分析のＥＣＤ検出により、 総トリハロ メタン量を測定した。Measurement 2 By ECD detection of gas chromatography, Total trihalo The amount of methane was measured.
測定３ 水道法に準じた方法で、 一般細菌。Measurement 3 In accordance with the Water Supply Law, General bacteria.
大腸菌群を 測定した。Coliform bacteria It was measured.
測定結果を第１表に示す。The measurement results are shown in Table 1.
第１表 第１表から明らかなように本発明の実施例によれば、 水道水のかび臭やト ノハロメタンを除去で き、貯水中にも細菌が繁殖することがない。Table 1 As is clear from Table 1, according to the embodiments of the present invention, Musty smell of tap water Removes nohalomethane Therefore, bacteria will not grow in the stored water.
なお、光触媒層としてはアナターゼ型酸化チタンに白金
を添着したものに限らず、半導体物質としてはルチル型
酸化チタン、酸化タングステン、酸化スズ、酸化亜鉛、
あるいはこれらの混合物なとでもよい。また白金に変わ
ってバラシュラム、銀、金などてもよい。Note that the photocatalytic layer is not limited to anatase-type titanium oxide impregnated with platinum; semiconductor materials include rutile-type titanium oxide, tungsten oxide, tin oxide, zinc oxide,
Alternatively, a mixture of these may be used. Also, instead of platinum, varashram, silver, gold, etc. may be used.
発明の効果
以上の実施例から明らかなように、本発明によれば光触
媒の有機物分解作用により、かび臭、トノハロメタンや
他の有機物、および菌を除去でき、おいしく健康によい
水を得るための、飲料水の浄化方法を提供できる。Effects of the Invention As is clear from the above examples, according to the present invention, musty odor, tonohalomethane, other organic substances, and bacteria can be removed by the organic matter decomposition action of a photocatalyst, and a beverage for obtaining delicious and healthy water can be obtained. It can provide a water purification method.
第１図は本発明の一実施例の基本フローを示す図、第２
図は本発明一実施例の光触媒反応槽の断面図である。
２ａ、２ｂ、２ｃ、２ｃ（，２ｅ−一光触媒層、３ａ、
３ｂ−ｍ−紫外線灯。Fig. 1 is a diagram showing the basic flow of an embodiment of the present invention;
The figure is a sectional view of a photocatalytic reaction tank according to an embodiment of the present invention. 2a, 2b, 2c, 2c (, 2e-1 photocatalyst layer, 3a,
3b-m-ultraviolet lamp.
Claims (1)
した光触媒層に接触させる飲料水の浄化方法。A drinking water purification method that involves removing dirt, rust, limescale, etc. from drinking water and bringing it into contact with a photocatalyst layer that has been irradiated with ultraviolet rays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1335616A JPH0751236B2 (en) | 1989-12-25 | 1989-12-25 | How to purify drinking water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1335616A JPH0751236B2 (en) | 1989-12-25 | 1989-12-25 | How to purify drinking water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03193191A true JPH03193191A (en) | 1991-08-22 |
| JPH0751236B2 JPH0751236B2 (en) | 1995-06-05 |
Family
ID=18290578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1335616A Expired - Lifetime JPH0751236B2 (en) | 1989-12-25 | 1989-12-25 | How to purify drinking water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0751236B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5332508A (en) * | 1993-09-20 | 1994-07-26 | Regents Of The University Of Colorado | Reversible photodeposition and dissolution of metal ions |
| WO1996000190A1 (en) * | 1994-06-27 | 1996-01-04 | Ronald William Arthur | Method and apparatus for photocatalytic oxidation of water-borne chemical species |
| WO1996004069A1 (en) * | 1994-08-02 | 1996-02-15 | North West Water Group Plc | Membrane |
| JPH0866635A (en) * | 1993-12-14 | 1996-03-12 | Toto Ltd | Photocatalytic thin film and its formation |
| WO2004096441A1 (en) * | 2003-04-18 | 2004-11-11 | Lizer Industry Co., Ltd. | Photocatalyst module, method of manufacturing the same, and cleaning treatment apparatus for water to be treated |
| FR2871152A1 (en) * | 2004-06-02 | 2005-12-09 | Laurent Bonduelle | Photocatalytic treatment unit for polluted liquids has upper trough covered with layer of material to retain non-organic solid particles |
| CN103265139A (en) * | 2013-06-06 | 2013-08-28 | 西安建筑科技大学 | Method and device for quickly treating alcohol-containing wastewater of gas field |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62193696A (en) * | 1986-02-20 | 1987-08-25 | Nomura Micro Sci Kk | Production of extremely pure water |
| JPS63162092A (en) * | 1986-12-25 | 1988-07-05 | Ebara Res Co Ltd | Method and device for purifying liquid |
| JPS63171641A (en) * | 1986-01-22 | 1988-07-15 | Hitachi Ltd | Method and apparatus for oxidizing and reducting dissolved material |
| JPS63270596A (en) * | 1987-04-28 | 1988-11-08 | Takuma Co Ltd | Method for removing organic matter in water |
| JPS6438191A (en) * | 1987-08-04 | 1989-02-08 | Isomura Housui Kiko Kk | Water purifier |
-
1989
- 1989-12-25 JP JP1335616A patent/JPH0751236B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63171641A (en) * | 1986-01-22 | 1988-07-15 | Hitachi Ltd | Method and apparatus for oxidizing and reducting dissolved material |
| JPS62193696A (en) * | 1986-02-20 | 1987-08-25 | Nomura Micro Sci Kk | Production of extremely pure water |
| JPS63162092A (en) * | 1986-12-25 | 1988-07-05 | Ebara Res Co Ltd | Method and device for purifying liquid |
| JPS63270596A (en) * | 1987-04-28 | 1988-11-08 | Takuma Co Ltd | Method for removing organic matter in water |
| JPS6438191A (en) * | 1987-08-04 | 1989-02-08 | Isomura Housui Kiko Kk | Water purifier |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5332508A (en) * | 1993-09-20 | 1994-07-26 | Regents Of The University Of Colorado | Reversible photodeposition and dissolution of metal ions |
| JPH0866635A (en) * | 1993-12-14 | 1996-03-12 | Toto Ltd | Photocatalytic thin film and its formation |
| WO1996000190A1 (en) * | 1994-06-27 | 1996-01-04 | Ronald William Arthur | Method and apparatus for photocatalytic oxidation of water-borne chemical species |
| WO1996004069A1 (en) * | 1994-08-02 | 1996-02-15 | North West Water Group Plc | Membrane |
| WO2004096441A1 (en) * | 2003-04-18 | 2004-11-11 | Lizer Industry Co., Ltd. | Photocatalyst module, method of manufacturing the same, and cleaning treatment apparatus for water to be treated |
| FR2871152A1 (en) * | 2004-06-02 | 2005-12-09 | Laurent Bonduelle | Photocatalytic treatment unit for polluted liquids has upper trough covered with layer of material to retain non-organic solid particles |
| CN103265139A (en) * | 2013-06-06 | 2013-08-28 | 西安建筑科技大学 | Method and device for quickly treating alcohol-containing wastewater of gas field |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0751236B2 (en) | 1995-06-05 |
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