JPH0576873A - Antibacterial water-purifying agent - Google Patents
Antibacterial water-purifying agentInfo
- Publication number
- JPH0576873A JPH0576873A JP27024791A JP27024791A JPH0576873A JP H0576873 A JPH0576873 A JP H0576873A JP 27024791 A JP27024791 A JP 27024791A JP 27024791 A JP27024791 A JP 27024791A JP H0576873 A JPH0576873 A JP H0576873A
- Authority
- JP
- Japan
- Prior art keywords
- antibacterial
- water
- metal ion
- purifying agent
- ion
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はビルの冷却塔水やプール
循環水、沼、池、貯水槽及び水道水、井戸水、天然水、
海水等の水中の微生物の殺菌、抗菌および静菌を目的と
した浄水剤に関するものである。BACKGROUND OF THE INVENTION The present invention relates to building cooling tower water, pool circulating water, swamps, ponds, water tanks and tap water, well water, natural water,
The present invention relates to a water purification agent for sterilizing, antibacterial and bacteriostatic of microorganisms in water such as seawater.
【０００２】[0002]
【従来技術およびその問題点】貯水中のバクテリアの繁
殖に対して、これを抑制するために金属イオンが有効で
あることは公知である。金属イオンの中でも銀イオンは
最も一般に使用されており、これを用いてクーリングタ
ワー中の水の殺菌などが行われている。また、最近では
各家庭や飲食店等において、活性炭等を充填した浄水器
を設置するところが増加しており、浄水器に用いられる
浄水剤として、一般に活性炭に銀を添着させた防菌性活
性炭が使用されているが、ゼオライトに銀イオンをイオ
ン交換させたものも市販されている。2. Description of the Related Art It is known that metal ions are effective in suppressing the growth of bacteria in stored water. Among the metal ions, silver ions are most commonly used, and this is used to sterilize water in the cooling tower. In addition, recently, the number of places where water purifiers filled with activated carbon etc. are installed in each home or restaurant, etc., and as a water purification agent used in water purifiers, generally, antibacterial activated carbon in which silver is impregnated on activated carbon is used. It is used, but a zeolite ion-exchanged with silver ions is also commercially available.
【０００３】しかし、従来の浄水剤は一般に殺菌作用や
防菌作用の持続性が短い。また、ゼオライトに銀イオン
をイオン交換した浄水剤は、活魚の生簀や水族館等の陽
イオンの存在する海水中では、殺菌作用の持続性が特に
短いという問題があった。However, conventional water purifiers generally have a short duration of bactericidal action and antibacterial action. Further, the water-purifying agent obtained by ion-exchanging silver ions into zeolite has a problem that the bactericidal action is particularly short-lived in seawater containing cations such as live fish cages and aquariums.
【０００４】[0004]
【発明の目的】本発明は、前述の問題点を解決し、殺菌
作用や防菌作用の持続性が長くて、しかも、陽イオンの
存在する海水中でもその効果を発揮することのできる抗
菌性浄水剤を提供することを目的とする。An object of the present invention is to solve the above-mentioned problems, to provide a long-lasting bactericidal action and antibacterial action, and to exert its effect even in seawater containing cations. The purpose is to provide an agent.
【０００５】[0005]
【発明の概要】本発明に係る抗菌性浄水剤は、無機のオ
キソ酸の塩の金属イオンを、抗菌性を有する金属イオン
でイオン交換したことを特徴とする。本抗菌性浄水剤
は、抗菌性を有する金属イオンの溶出が、高塩濃度、例
えば海水においても著しく少なくて殺菌性を有するよう
調製されており、水および海水等の水質の変化に対して
も殺菌作用を持続することができる。SUMMARY OF THE INVENTION The antibacterial water purifier according to the present invention is characterized in that the metal ion of an inorganic oxoacid salt is ion-exchanged with a metal ion having antibacterial property. This antibacterial water purification agent is prepared so that the elution of metal ions having antibacterial properties is high and has a bactericidal property even in a high salt concentration, for example, in seawater. The bactericidal action can be sustained.
【０００６】[0006]
【発明の具体的な説明】以下に本発明について具体的に
説明する。抗菌性浄水剤の母材となる無機のオキソ酸の
塩とは、オキソ酸の解離できる水素原子を金属イオンで
置換したものをいい、イオン交換能を有しており、か
つ、水に不溶性のものでなければならない。水溶性であ
ると、水、海水中に抗菌性浄水剤が溶出して、抗菌力が
持続しないからである。このような無機のオキソ酸の塩
としては、珪酸塩、アルミン酸塩、燐酸塩、チタン酸塩
などが例示され、珪酸塩としてはメタ珪酸アルミン酸マ
グネシウム、メタ珪酸アルミン酸カルシウム、珪酸カル
シウム、珪酸マグネシウム、アルミン酸塩としてはアル
ミン酸マグネシウム、アルミン酸カルシウム、燐酸塩と
しては燐酸カルシウム、燐酸ジルコニウム、チタン酸塩
としてはチタン酸カリウム、チタン酸カルシウムなどの
化合物が好ましく、特に、メタ珪酸アルミン酸マグネシ
ウムと、燐酸カルシウムを主成分とする燐灰石は安全性
の点からも好ましい。DETAILED DESCRIPTION OF THE INVENTION The present invention will be specifically described below. The inorganic salt of oxo acid, which is the base material of the antibacterial water purifying agent, is a salt in which the dissociable hydrogen atom of oxo acid is replaced with a metal ion, which has ion exchange ability and is insoluble in water. Must be one. This is because if it is water-soluble, the antibacterial water purification agent will be dissolved in water and seawater and the antibacterial activity will not last. Examples of such inorganic oxo acid salts include silicates, aluminates, phosphates, and titanates. Examples of silicates include magnesium metasilicate aluminate, calcium metasilicate aluminate, calcium silicate, and silicic acid. Compounds such as magnesium aluminate and calcium aluminate as the aluminate, calcium phosphate and zirconium phosphate as the phosphate, potassium titanate and calcium titanate as the titanate are preferable, and magnesium metasilicate aluminate is particularly preferable. Also, apatite containing calcium phosphate as a main component is preferable from the viewpoint of safety.
【０００７】メタ珪酸アルミン酸マグネシウムは、塩基
性アルミン酸マグネシウムに珪酸ソーダを反応させて得
ることができ、化学式、Ａｌ2 Ｏ3 ・ｘＭｇＯ・ｙＳｉ
Ｏ2 ・ｚＨ2 Ｏ〔ここでｘは１又は２、ｙおよびｚは１
以上の整数〕で表される。また、燐灰石はアパタイトと
も呼ばれ、フッ素燐灰石、塩素燐灰石、水酸燐灰石等の
総称である。Magnesium metasilicate aluminate can be obtained by reacting basic magnesium aluminate with sodium silicate, and has a chemical formula of Al 2 O 3 .xMgO.ySi.
O 2 · zH 2 O [where x is 1 or 2, y and z are 1
The above integer]. Apatite is also called apatite and is a general term for fluoroapatite, chlorapatite, hydroxyapatite, and the like.
【０００８】イオン交換される抗菌性を有する金属イオ
ンとしては、Ａｇ、Ｃｕ、Ｚｎの金属イオンを少なくと
も１種以上用いる。これらの金属イオンは、通常の方法
により、前記オキソ酸の塩の金属イオンとイオン交換す
ることができ、水酸化物を生成するｐＨ値より低く、し
かも、オキソ酸の塩が溶解しない領域で行われる。即
ち、Ａｇの場合はｐＨ９〜４、Ｃｕの場合はｐＨ６〜
４、Ｚｎの場合はｐＨ９〜４の範囲であって、６０℃以
上の温度領域が望ましい。上記金属イオンは、塩化物や
硫酸塩の形で利用することもできるが、陰イオンが残り
にくい硝酸塩を利用するのが好ましい。As the antibacterial metal ion to be ion-exchanged, at least one metal ion of Ag, Cu and Zn is used. These metal ions can be ion-exchanged with the metal ions of the salt of oxo acid by a conventional method, and are lower than the pH value for forming hydroxide, and also in the region where the salt of oxo acid does not dissolve. Be seen. That is, in the case of Ag, the pH is 9 to 4, and in the case of Cu, the pH is 6 to 4.
In the case of 4, Zn, the pH is in the range of 9 to 4, and the temperature range of 60 ° C. or higher is desirable. The metal ion can be used in the form of chloride or sulfate, but it is preferable to use nitrate which hardly causes anions.
【０００９】無機のオキソ酸の塩は、その金属イオンの
一部が抗菌性を有する金属イオンによってイオン交換さ
れるが、イオン交換される抗菌性の金属イオンの割合
は、オキソ酸の塩が保有するイオン交換容量の０．１〜
９０モル％であることが適当である。さらに、抗菌性浄
水剤中のイオン交換された金属イオンは抗菌性浄水剤の
０．０１〜４０重量％であることが好ましい。金属イオ
ンの割合が、上記最小値に満たない場合には、抗菌性が
十分に発揮されず、他方、最大値を越える場合には、金
属イオンが不安定となり、抗菌効果の安定性と持続性を
欠くことになる。Inorganic oxoacid salts have some of their metal ions ion-exchanged by metal ions having antibacterial properties, and the proportion of the antibacterial metal ions exchanged is possessed by oxoacid salts. Ion exchange capacity of 0.1 to
90 mol% is suitable. Further, the ion-exchanged metal ions in the antibacterial water purification agent are preferably 0.01 to 40% by weight of the antibacterial water purification agent. If the ratio of metal ions is less than the above minimum value, the antibacterial property is not sufficiently exerted, while if it exceeds the maximum value, the metal ions become unstable and the antibacterial effect is stable and durable. Will lack.
【００１０】イオン交換操作後は、常法に従い、洗浄、
乾燥して所望の抗菌性浄水剤を得る。なお、乾燥しただ
けでは抗菌性の金属イオンが強固に固定されず、溶出し
易いので、乾燥後、３００℃以上の温度で焼成すること
が望ましい。本発明の抗菌性浄水剤は、このようにして
調製するので、自由状態の金属イオンが少なく、加熱や
光による酸化作用を受けにくい。従って、変色および溶
出を起こさない。After the ion exchange operation, washing and
Dry to obtain the desired antimicrobial water purifier. In addition, since the antibacterial metal ion is not firmly fixed and is easily eluted only by drying, it is desirable to bake at a temperature of 300 ° C. or higher after drying. Since the antibacterial water purifying agent of the present invention is prepared in this manner, it has a small amount of metal ions in a free state, and is less likely to be oxidized by heating or light. Therefore, no discoloration or elution occurs.
【００１１】本発明では上記抗菌性浄水剤をそのままの
粉末状態で使用することも可能であるが、酸性白土など
の粘土類、アルミナ、シリカ、チタニアなどの結合剤を
使用して、適当な形状に成型して使用することも可能で
ある。この場合には成型物中の前記結合剤の含有量は、
殺菌効果を発揮する上で９０重量％以下であることが望
ましい。In the present invention, the above-mentioned antibacterial water purifying agent can be used as it is in a powder state, but a suitable shape can be obtained by using a clay such as acid clay or a binder such as alumina, silica or titania. It is also possible to mold and use it. In this case, the content of the binder in the molded product is
In order to exert the bactericidal effect, it is preferably 90% by weight or less.
【００１２】本発明の抗菌性浄水剤は、殺菌作用や静菌
作用が長く持続でき、しかも人体に対して高い安全性を
有し、皮膚刺激性、変異原性が無く、急性毒性について
も安全な値を示すことから、沼、池、水槽、貯水槽、ク
ーリングタワーなどの浄化に使用される他、水道水、無
菌水、エアコンのドレン水などの静菌、プールや風呂な
どの循環浄水器用などへの使用に適しており、その使用
による二次的効果として防臭作用をも有する。なお、本
発明の抗菌性浄水剤は他の浄水剤、例えば吸着剤などと
併用することも可能であり、浄水器など従来の抗菌性浄
水剤が使用される分野において通常の使用方法で用いる
ことができる。The antibacterial water purification agent of the present invention has a long-lasting bactericidal action and bacteriostatic action, has a high safety for human body, has no skin irritation and mutagenicity, and is safe for acute toxicity. It is used to purify swamps, ponds, water tanks, water tanks, cooling towers, etc., as well as bacteriostatic bacteria such as tap water, sterile water, drainage water for air conditioners, and circulating water purifiers such as pools and baths. It is also suitable for use as a secondary effect and has a deodorizing effect as a secondary effect. The antibacterial water purifier of the present invention can also be used in combination with other water purifiers, such as adsorbents, and should be used in a usual manner in the field where conventional antibacterial water purifiers such as water purifiers are used. You can
【００１３】[0013]
【実施例】以下に実施例を示し、さらに本発明を具体的
に説明する。製造例１ 硝酸銀（ＡｇＮＯ3)３．２ｇと硝酸亜鉛（Ｚｎ（ＮＯ3)
2・６Ｈ2 Ｏ）４６．３ｇを５リットルの純水に溶解
し、ｐＨを５．０に調整した。この水溶液にメタ珪酸ア
ルミン酸マグネシウム（富士化学工業（株）製、商品名
ノイシリン；Ａｌ2 Ｏ3 ・ＭｇＯ・２ＳｉＯ2 ・７Ｈ2
Ｏ、凝集粒子の平均粒径２μｍ、水分量２０重量％）１
２５ｇを添加し、再度、ｐＨを５．０に調整し、６０℃
で１時間撹拌した。その後、スラリー重量の５倍量の温
水で洗浄し、乾燥（１１０℃、４時間）および焼成（６
００℃、２時間）して、抗菌性浄水剤（Ａ）を得た。こ
の抗菌性浄水剤（Ａ）の組成を表１に示す。EXAMPLES The present invention will be described in more detail with reference to the following examples. Production Example 1 3.2 g of silver nitrate (AgNO 3 ) and zinc nitrate (Zn (NO 3 ))
The 2 · 6H 2 O) 46.3g was dissolved in pure water 5 liters and the pH was adjusted to 5.0. In this aqueous solution, magnesium aluminometasilicate (manufactured by Fuji Chemical Co., Ltd., trade name Neusilin; Al 2 O 3 .MgO.2SiO 2 .7H 2
O, average particle size of aggregated particles 2 μm, water content 20% by weight) 1
Add 25g, adjust the pH to 5.0 again, 60 ℃
It was stirred for 1 hour. Then, it was washed with hot water in an amount 5 times the weight of the slurry, dried (110 ° C., 4 hours) and calcined (6
The mixture was heated at 00 ° C. for 2 hours) to obtain an antibacterial water purifier (A). The composition of this antibacterial water purifier (A) is shown in Table 1.
【００１４】製造例２ 硝酸銀（ＡｇＮＯ3)３．２ｇおよび硝酸銅（Ｃｕ（ＮＯ
3)2 ・３Ｈ2 Ｏ）５．７ｇを５リットルの純水に溶解
し、ｐＨを５．０に調整した。この水溶液にメタ珪酸ア
ルミン酸マグネシウム（Ａｌ2 Ｏ3 ・ＭｇＯ・２ＳｉＯ
2 ・７Ｈ2 Ｏ、凝集粒子の平均粒径２μｍ、水分量２０
重量％）１２５ｇを添加し、再度、ｐＨを５．０に調整
し、６０℃で１時間撹拌した。その後、５当量の温水で
洗浄し、乾燥（１１０℃、４時間）および焼成（６００
℃、２時間）して、抗菌性浄水剤（Ｂ）を得た。この抗
菌性浄水剤（Ｂ）の組成を表１に示す。 Production Example 2 3.2 g of silver nitrate (AgNO 3 ) and copper nitrate (Cu (NO
3) 2 · 3H 2 O) 5.7g was dissolved in pure water 5 liters and the pH was adjusted to 5.0. In this aqueous solution, magnesium aluminometasilicate (Al 2 O 3 · MgO · 2SiO
2 · 7H 2 O, an average particle size 2μm aggregated particles, water content 20
125% by weight) was added, the pH was adjusted again to 5.0, and the mixture was stirred at 60 ° C. for 1 hour. Then, it is washed with 5 equivalents of warm water, dried (110 ° C., 4 hours) and calcined (600
After 2 hours at ℃), an antibacterial water purification agent (B) was obtained. The composition of this antibacterial water purifier (B) is shown in Table 1.
【００１５】製造例３ ５リットルの純水に、硝酸銀（ＡｇＮＯ3)３．２ｇを溶
解し、ｐＨを５．０に調整した。この水溶液にメタ珪酸
アルミン酸マグネシウム（Ａｌ2Ｏ3 ・ＭｇＯ・２Ｓｉ
Ｏ2 ・７Ｈ2 Ｏ、凝集粒子の平均粒径２μｍ、水分量２
０重量％）１２５ｇを添加し、再度、ｐＨを５．０に調
整し、６０℃で１時間撹拌した。その後、５当量の温水
で洗浄し、乾燥（１１０℃、４時間）および焼成（６０
０℃、２時間）して、抗菌性浄水剤（Ｃ）を得た。この
抗菌性浄水剤（Ｃ）の組成を表１に示す。 Production Example 3 3.2 g of silver nitrate (AgNO 3 ) was dissolved in 5 liters of pure water to adjust the pH to 5.0. Add magnesium aluminometasilicate (Al 2 O 3 · MgO · 2Si) to this aqueous solution.
O 2 · 7H 2 O, average particle size of aggregated particles 2 μm, water content 2
(0 wt%) 125 g was added, the pH was adjusted to 5.0 again, and the mixture was stirred at 60 ° C. for 1 hour. Then, it is washed with 5 equivalents of warm water, dried (110 ° C., 4 hours) and calcined (60
After 2 hours at 0 ° C., an antibacterial water purifier (C) was obtained. The composition of this antibacterial water purifier (C) is shown in Table 1.
【００１６】製造例４ 硝酸銀（ＡｇＮＯ3)３．２ｇおよび硝酸銅（Ｃｕ（ＮＯ
3)2 ・３Ｈ2 Ｏ）５．７ｇを５リットルの純水に溶解
し、ｐＨを５．０に調整した。この水溶液にＡ型ゼオラ
イト（平均粒径２．０μｍ、水分量２３重量％）１３０
ｇを添加し、再度、ｐＨを５．０に調整し、６０℃で１
時間撹拌した。その後、５当量の温水で洗浄し、乾燥
（１１０℃、４時間）および焼成（６００℃、２時間）
して、抗菌性浄水剤（Ｄ）を得た。この抗菌性浄水剤
（Ｄ）の組成を表１に示す。 Production Example 4 3.2 g of silver nitrate (AgNO 3 ) and copper nitrate (Cu (NO
3) 2 · 3H 2 O) 5.7g was dissolved in pure water 5 liters and the pH was adjusted to 5.0. Type A zeolite (average particle size: 2.0 μm, water content: 23% by weight)
g, adjust the pH to 5.0 again, and add 1 at 60 ° C.
Stir for hours. After that, it is washed with 5 equivalents of warm water, dried (110 ° C, 4 hours) and baked (600 ° C, 2 hours).
Then, an antibacterial water purifier (D) was obtained. The composition of this antibacterial water purifier (D) is shown in Table 1.
【００１７】[0017]
【表１】浄水剤 母材 金属イオン（重量％） （Ａｇ）（Ｃｕ）（Ｚｎ） Ａ メタ珪酸アルミン酸マグネシウム 2.0 − 10.0 Ｂ 同上 2.0 3.0 − Ｃ 同上 2.0 − − Ｄ Ａ型ゼオライト 2.0 3.0 −[Table 1] Water-purifying agent base metal ion (wt%) (Ag) (Cu) (Zn) A magnesium aluminometasilicate 2.0- 10.0 B Same as 2.0 3.0-C Same as 2.0 --- DA Zeolite 2.0 3.0-
【００１８】製造例５ 製造例１で得た抗菌性浄水剤（Ａ）と酸性白土（食添
用、ミズカエース＃４００、ミズサワ工業製）を５０：
５０の重量割合で混合し、ニーリングして得た捏和物を
押し出し成型して、直径約１．０mmφ、長さ５〜１０mm
のペレット状の抗菌性浄水剤（Ｅ）を得た。 Production Example 5 The antibacterial water purifying agent (A) obtained in Production Example 1 and acid clay (for food additive, Mizuka Ace # 400, manufactured by Mizusawa Kogyo Co., Ltd.) were mixed at 50:
The kneaded product obtained by mixing and kneading at a weight ratio of 50 is extruded and molded to have a diameter of about 1.0 mmφ and a length of 5 to 10 mm.
The pellet-shaped antibacterial water purifier (E) was obtained.
【００１９】上記浄水剤（Ａ）〜（Ｅ）、市販の銀担持
抗菌性活性炭（武田薬品（株）製）および硝酸銀試薬
（特級）を用いて、以下に示す方法で抗菌性浄水剤の評
価実験を行った。 （実験１）水道水に大腸菌を７．６×１０6 個／mlとな
るように加えた菌懸濁液１００mlに、浄水剤（Ａ）、
（Ｂ）、（Ｃ）をそれぞれ０．１ｇ、０．０１ｇ添加
し、１時間後の生菌数を測定した。結果を表２に示す。Evaluation of antibacterial water purifying agents by the following methods using the above water purifying agents (A) to (E), commercially available silver-supported antibacterial activated carbon (manufactured by Takeda Pharmaceutical Co., Ltd.) and silver nitrate reagent (special grade) An experiment was conducted. (Experiment 1) 100 ml of a bacterial suspension prepared by adding E. coli to tap water at a concentration of 7.6 × 10 6 cells / ml, a water purification agent (A),
(B) and (C) were added in an amount of 0.1 g and 0.01 g, respectively, and the viable cell count was measured after 1 hour. The results are shown in Table 2.
【００２０】[0020]
【表２】浄水剤 添加量（ｇ） 生菌数（個／ml） 死滅率（％）(*1) Ａ ０．０１ ０ １００ Ａ ０．１ ０ １００ Ｂ ０．０１ ０ １００ Ｂ ０．１ ０ １００ Ｃ ０．０１ ０ １００ Ｃ ０．１ ０ １００ (*1)死滅率＝（初期菌数−生菌数）／初期菌数×１００[Table 2] Amount of water-purifying agent added (g ) Number of viable bacteria (cells / ml ) Death rate (% ) (* 1) A 0.01 0 100 A 0.1 0 100 B 0.01 0 100 B 0.1 0 100 C 0.01 0 100 C 0.1 0 100 (* 1) Death rate = (initial number of bacteria-number of viable cells) / initial number of bacteria x 100
【００２１】（実験２）栄養水中に大腸菌を加えた菌懸
濁液１００mlに、浄水剤（Ａ）をそれぞれ０．１ｇと
０．０１ｇを添加して経時的に生菌数を測定した。その
結果を浄水剤を添加しない場合と比較して図１に示す。(Experiment 2) 0.1 g and 0.01 g of the water-purifying agent (A) were added to 100 ml of a bacterial suspension containing E. coli in nutrient water, and the viable cell count was measured over time. The result is shown in FIG. 1 in comparison with the case where the water purifying agent is not added.
【００２２】（実験３）屋外の水槽中の水に、浄水剤
（Ａ）及び硝酸銀を各水量に対して、それぞれ０．１重
量％となるように添加し、経時的に水中の生菌数を測定
した。その結果を浄水剤を添加しない場合と比較して図
２に示す。(Experiment 3) The water purifying agent (A) and silver nitrate were added to the water in the outdoor water tank at 0.1% by weight with respect to each amount of water, and the number of viable bacteria in the water was changed over time. Was measured. The results are shown in FIG. 2 in comparison with the case where no water purifying agent is added.
【００２３】（実験４）市販されている浄水器のカート
リッジに、市販の銀担持抗菌性活性炭、および、活
性炭（試薬）９０重量％と浄水剤（Ｅ）１０重量％の混
合物、をそれぞれ詰めて約２０リットル／日のペースで
６ヵ月間通常使用した後、一日中水を止めた後の最初の
水１リットルを採取し、生菌数を測定した。使用開始時
にはいずれのカートリッジにも生菌が検出されなかった
が、６ヵ月経過後には、カートリッジにおいて生菌が
全く検出されなかったのに対して、カートリッジで
は、５．４×１０4 個／mlの生菌が検出された。(Experiment 4) A commercially available water purifier cartridge was filled with a commercially available silver-carrying antibacterial activated carbon and a mixture of 90% by weight of activated carbon (reagent) and 10% by weight of a water purifying agent (E). After normal use at a pace of about 20 liters / day for 6 months, 1 liter of the first water after stopping the water all day was collected and the viable cell count was measured. No viable bacteria were detected in any of the cartridges at the start of use, but no viable bacteria were detected in the cartridges after 6 months, whereas in the cartridges, 5.4 × 10 4 cells / ml were detected. Viable bacteria were detected.
【００２４】（実験５）海水１リットルに浄水剤（Ｂ）
および（Ｄ）をそれぞれ１ｇ添加して室温で１日中放置
した。次いで各浄水剤を濾過洗浄して取り出し乾燥し
た。これらの浄水剤０．１ｇを新しい海水１００mlに添
加し、１時間後の生菌数を測定した。結果を表３に示
す。(Experiment 5) Water purification agent (B) was added to 1 liter of seawater.
1g of each of (D) and (D) was added, and the mixture was allowed to stand at room temperature for one day. Then, each water purifying agent was filtered, washed, taken out and dried. 0.1 g of these water purifying agents was added to 100 ml of fresh seawater, and the viable cell count was measured after 1 hour. The results are shown in Table 3.
【００２５】[0025]
【表３】浄水剤 初期菌数（個／ml） 生菌数（個／ml） 死滅率（％） Ｂ ３．４×１０4 ０ １００ Ｄ ３．４×１０3 １．０×１０3 ７０．６[Table 3] Initial number of water-purifying agent (cells / ml ) Viable cell count (cells / ml ) Death rate (% ) B 3.4 × 10 4 0 100 D 3.4 × 10 3 1.0 × 10 3 70 .6
【００２６】[0026]
【発明の効果】本発明の抗菌性浄水剤は前記実験結果か
らも明らかなように、有効な殺菌性を有していることが
わかる。特に栄養源の少ない水道水中では顕著な殺菌性
を示し、栄養状態の高い状態においてもブランクでの生
菌数の増加に反して生菌数を減じている。加えて、銀イ
オンや銀担持活性炭より寿命が長く、しかも、水中の塩
濃度にも影響を受けずに安定した殺菌性を示すものであ
り、抗菌性を必要とする水まわりの浄水剤として広く利
用することができる。The antibacterial water purifier of the present invention has effective bactericidal properties, as is clear from the above experimental results. In particular, it shows remarkable bactericidal properties in tap water, which has a low nutrient source, and reduces the viable cell count against the increase in the viable cell count in the blank even in a highly nutritive state. In addition, it has a longer life than silver ion and silver-supported activated carbon, and shows stable bactericidal properties without being affected by salt concentration in water, and is widely used as a water purification agent around water that requires antibacterial properties. Can be used.
【図１】実験２における生菌数の経時的変化を示すグラ
フである。FIG. 1 is a graph showing changes in the viable cell count over time in Experiment 2.
【図２】実験３における生菌数の経時的変化を示すグラ
フである。FIG. 2 is a graph showing changes in the viable cell count over time in Experiment 3.
Claims (2)
菌性を有する金属イオンでイオン交換してなる抗菌性浄
水剤。1. An antibacterial water purification agent obtained by ion-exchange of metal ions of an inorganic oxoacid salt with metal ions having antibacterial properties.
ミン酸マグネシウムであることを特徴とする請求項１記
載の抗菌性浄水剤。2. The antibacterial water purifier according to claim 1, wherein the inorganic oxo acid salt is magnesium aluminometasilicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27024791A JPH0576873A (en) | 1991-09-21 | 1991-09-21 | Antibacterial water-purifying agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27024791A JPH0576873A (en) | 1991-09-21 | 1991-09-21 | Antibacterial water-purifying agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0576873A true JPH0576873A (en) | 1993-03-30 |
Family
ID=17483599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27024791A Pending JPH0576873A (en) | 1991-09-21 | 1991-09-21 | Antibacterial water-purifying agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0576873A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012206967A (en) * | 2011-03-29 | 2012-10-25 | Sinanen Zeomic Co Ltd | Water treatment agent for anti-microbial and method of water treatment |
-
1991
- 1991-09-21 JP JP27024791A patent/JPH0576873A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012206967A (en) * | 2011-03-29 | 2012-10-25 | Sinanen Zeomic Co Ltd | Water treatment agent for anti-microbial and method of water treatment |
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