JP4238308B2

JP4238308B2 - Drinking water modifier and modified drinking water

Info

Publication number: JP4238308B2
Application number: JP2002186764A
Authority: JP
Inventors: 昭紀西尾
Original assignee: Hippocampus
Current assignee: Hippocampus
Priority date: 2002-06-26
Filing date: 2002-06-26
Publication date: 2009-03-18
Anticipated expiration: 2022-06-26
Also published as: JP2004025069A

Description

【０００１】
【発明の属する技術分野】
この発明は、飲料水にミネラル成分としての亜鉛を含ませたり、飲料水に制菌効果を付与したりするための飲料水用改質剤及びこの飲料水用改質剤で改質された改質飲料水に関する。
【０００２】
【従来の技術】
近年、環境汚染や健康への関心が高まり、家庭の飲料水に水道水以上の安全性や美味しさが求められるようになったため、ミネラルウォーターや浄水器の需要が伸び続けている。
【０００３】
従来の浄水器においては、中空糸膜等のフィルターで不純物を物理的に除去したり、麦飯石やサンゴでミネラル成分の補給を行ったりしている。また、活性炭等で次亜塩素酸を除去した水道水は、微生物が繁殖する危険性があるため、フィルターによる除菌、紫外線殺菌、加熱殺菌、浄水器への抗菌素材の使用等が行われている。
【０００４】
【発明が解決しようとする課題】
しかしながら、上記のような麦飯石やサンゴ等の固形物からのミネラル成分の溶出量は水質、流水速度、浄水器の使用期間等により変動が大きいため、一定したミネラル成分の濃度を保証するのは難しいという問題点がある。
【０００５】
また、次亜塩素酸を除去した水道水に対し、フィルターによる除菌、紫外線殺菌、加熱殺菌等を行うのは煩雑であると共に、浄水器への抗菌素材の使用では抗菌効果が不十分であるという問題点がある。
【０００６】
この発明は、以上のような問題点に鑑みてなされたものであり、飲料水にミネラル成分としての亜鉛を安定的に含ませたり、飲料水に十分な制菌効果を付与できる飲料水用改質剤及び改質飲料水を提供することを目的とする。
【０００７】
【課題を解決するための手段】
上記目的を達成するための請求項１の飲料水用改質剤は、水に硫酸亜鉛または塩化亜鉛を、亜鉛が１００〜３０００ｍｇ／Ｌの割合で含まれるように溶解させ、かつ、硫酸アルミニウム及び／又は硫酸鉄からなる無機凝集剤を含むものである。
【０００８】
請求項２の飲料水用改質剤は、天然鉱石を硫酸で溶解、抽出した水溶液を含むものである。
【０００９】
また、請求項３の改質飲料水は、飲料水に請求項１または２に記載の飲料水用改質剤を、亜鉛が０．１〜０．３ｍｇ／Ｌの割合で含まれるように添加したものである。
【００１０】
【発明の実施の形態】
以下、この発明の実施形態について説明する。
この実施形態に係る飲料水用改質剤は、水に硫酸亜鉛または塩化亜鉛を、亜鉛が１００〜３０００ｍｇ／Ｌ〔ｐｐｍ，ｐａｒｔ（ｓ）ｐｅｒｍｉｌｌｉｏｎ〕の割合で含まれるように溶解させたものである。
【００１１】
飲料水としては、例えば、水道水、井戸水、ミネラルウォーター等が挙げられる。
【００１２】
飲料水用改質剤は飲料水に添加されるので、硫酸亜鉛の溶媒としての水も飲料水としておけばよい。飲料水用改質剤を飲料水に添加して改質飲料水とする際に、飲料水用改質剤を飲料水で１０００〜１００００倍（体積比）に希釈すれば、改質飲料水には亜鉛が０．１〜０．３ｍｇ／Ｌの割合で含まれる。亜鉛をこのような割合で改質飲料水に含ませておけば、改質飲料水を１日に１０Ｌ飲んだ場合でも、亜鉛の１日当たりの摂取量を１日当たりの許容上限摂取量（３０ｍｇ）の１／３０〜１／１０にできるので、改質飲料水を他の水道水やミネラルウォーター等の飲料水と同様に飲料用に使用できるという利点がある。また、亜鉛は制菌効果を有するので、亜鉛を上記の割合で含む改質飲料水に十分な制菌効果を付与できるという利点がある。
【００１３】
なお、飲料水用改質剤には、必要に応じて、硫酸マグネシウム、硫酸銅、硫酸モリブデン等を溶解させておくこともできる。この場合、例えば、水道水に硫酸亜鉛、硫酸マグネシウム、硫酸銅、硫酸モリブデンを、亜鉛が１５００ｍｇ／Ｌ、マグネシウムが１５０００ｍｇ／Ｌ、銅が１５０ｍｇ／Ｌ、モリブデンが１．５ｍｇ／Ｌの割合となるようにそれぞれ溶解させて飲料水用改質剤を調製し、得られた飲料水用改質剤を水道水で５０００倍（体積比）に希釈し、改質した水道水を飲料用に供すれば、改質した水道水を１日に１０Ｌ飲んだ場合でも、亜鉛、マグネシウム、銅、モリブデンの１日当たりの摂取量を１日当たりの許容上限摂取量（亜鉛：３０ｍｇ、マグネシウム：１３０〜７００ｍｇ、銅：９ｍｇ、モリブデン：６０〜２５０ｍｇ）とほぼ同じか又は少なくできる。
【００１４】
このように、飲料水用改質剤によれば、飲料水にミネラル成分としての亜鉛を安定的に含ませることができると共に、飲料水に十分な制菌効果を付与できるという利点がある。
【００１５】
ここで、飲料水用改質剤に、必要に応じて、硫酸アルミニウムや硫酸鉄からなる無機凝集剤を含ませておけば、飲料水中の有機物や不純物を凝集させることができるので、飲料水を浄化できるという利点がある。しかも、微生物の餌となる有機物が凝集により除去されるので、制菌効果をより高めることができる。この場合、改質飲料水は、フィルター（孔の直径：１μｍ）等でろ過することにより、凝集物をろ別しておくのが望ましい。
【００１６】
また、飲料水用改質剤は、天然鉱石を硫酸で溶解、抽出した水溶液を含むものであってもよい。この場合、天然鉱石が１０〜２０重量％の割合となるように１０〜４０％硫酸で溶解、抽出するのが望ましい。また、抽出した水溶液だけでは亜鉛の割合が少なければ、適当量の硫酸亜鉛等を別途添加すればよい。このように、原料に比較的安価な天然鉱石を使用できるので、コストダウンを図ることができるという利点がある。なお、このような天然鉱石は特に限定されるものではないが、例えば、緑泥石（クロライト）を主要構成鉱物とするナキジン変成岩（ナキジンクロライト）等を好適に使用できる。
【００１７】
【実施例】
次に、実施例により更に詳細に説明するが、この発明はかかる実施例に限定されるものではない。
【００１８】
〔実施例１〕
亜鉛のみの添加による静菌作用（亜鉛濃度０．１ｍｇ／Ｌ）の実施例
水に硫酸亜鉛を、亜鉛の割合が５００ｍｇ／Ｌになるように溶解した飲料水用改善剤を調製した。活性炭を用いて次亜塩素酸を除去した水道水を用意し、そのままのものを比較例１とし、処理区には調製した飲料水用改質剤を５０００倍希釈液（体積比）となるように添加した。添加後の亜鉛濃度が０．１ｍｇ／Ｌであるこの改質飲料水を常温で保存し、一般生菌数の経時変化を測定した。その結果を表１に示す。
【００１９】
【表１】

【００２０】
〔実施例２及び実施例３〕
天然鉱石〔緑泥石（クロライト）を主要構成鉱物とするナキジン変成岩（ナキジンクロライト）〕を１０％硫酸に溶解させた比重１．１６の水溶液を調製した。この水溶液の成分を表２に示す。
【００２１】
【表２】

【００２２】
上記の水溶液に硫酸亜鉛を、亜鉛が合計で１５００ｍｇ／Ｌの割合となるように添加して飲料水用改質剤を調製した。得られた飲料水用改質剤を水道水で５０００倍（体積比）に希釈し、希釈した水道水をフィルター（孔の直径：０．５μｍ）でろ過して凝集物をろ別した後、更に活性炭に通した。このように処理をした水を貯水式の冷水器で通常使用し（１日約１０Ｌ）１ヶ月後に一般生菌数を測定した。その結果を表３（同様の操作を２回行ったうちの１回目が実施例２、２回目が実施例３）に示す。
【００２３】
【表３】

【００２４】
〔比較例２及び比較例３〕
飲料水用改質剤を添加していない水道水を活性炭に通した後、貯水式の冷水器で通常使用し一般生菌数を測定した。その結果を表３（同様の操作を２回行ったうちの１回目が比較例２、２回目が比較例３）に示す。
【００２５】
【発明の効果】
以上のように、請求項１の発明によれば、水に硫酸亜鉛または塩化亜鉛を、亜鉛が１００〜３０００ｍｇ／Ｌの割合で含まれるように溶解させているので、この飲料水用改質剤が添加される飲料水にミネラル成分としての亜鉛を安定的に含ませることができると共に、飲料水に十分な制菌効果を付与できる。さらに、硫酸アルミニウム及び／又は硫酸鉄からなる無機凝集剤を含むので、この飲料水用改質剤が添加される飲料水中の有機物や不純物を凝集させることができ、そのため飲料水を浄化できる。しかも、微生物の餌となる有機物が凝集により除去されるので、制菌効果をより高めることができる。
【００２６】
請求項２の発明によれば、天然鉱石を硫酸で溶解、抽出した水溶液を含むので、原料に比較的安価な天然鉱石を使用でき、そのためコストダウンを図ることができる。
【００２７】
請求項３の発明によれば、飲料水に上記の飲料水用改質剤を、亜鉛が０．１〜０．３ｍｇ／Ｌの割合で含まれるように添加しているので、他の飲料水と同様に飲料用に使用できる。[0001]
BACKGROUND OF THE INVENTION
The present invention provides a drinking water modifier for adding zinc as a mineral component to drinking water or imparting an antibacterial effect to drinking water, and a modification modified with the drinking water modifier. Concerning quality drinking water.
[0002]
[Prior art]
In recent years, interest in environmental pollution and health has increased, and the demand for mineral water and water purifiers has continued to grow as household drinking water is required to be safer and more delicious than tap water.
[0003]
In conventional water purifiers, impurities are physically removed with a filter such as a hollow fiber membrane, or mineral components are replenished with barley stone or coral. In addition, tap water from which hypochlorous acid has been removed with activated carbon or the like has a risk of microbial growth, and therefore, sterilization using filters, UV sterilization, heat sterilization, use of antibacterial materials for water purifiers, etc. are performed Yes.
[0004]
[Problems to be solved by the invention]
However, the amount of elution of mineral components from solids such as barley stones and corals as described above varies greatly depending on the water quality, flow rate, duration of use of the water purifier, etc. There is a problem that it is difficult.
[0005]
Moreover, it is cumbersome to disinfect tap water from which hypochlorous acid has been removed using filters, UV sterilization, heat sterilization, etc., and the use of antibacterial materials for water purifiers is insufficient. There is a problem.
[0006]
The present invention has been made in view of the above-mentioned problems, and is intended to improve drinking water that can stably contain zinc as a mineral component in drinking water or can provide a sufficient antibacterial effect to drinking water. It aims at providing a quality agent and modified drinking water.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the drinking water modifier according to claim 1, wherein zinc sulfate or zinc chloride is dissolved in water so that zinc is contained at a rate of 100 to 3000 mg / L , and aluminum sulfate and It includes an inorganic flocculant made of iron sulfate .
[000 8 ]
The modifier for drinking water according to claim 2 includes an aqueous solution obtained by dissolving and extracting natural ore with sulfuric acid.
[000 9 ]
Also, the reforming water according to claim 3, adding water reforming agent according to claim 1 or 2 in drinking water, as zinc is contained in an amount of 0.1 to 0.3 mg / L It is a thing.
[001 0 ]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
The modifier for drinking water according to this embodiment is obtained by dissolving zinc sulfate or zinc chloride in water so that zinc is contained at a rate of 100 to 3000 mg / L [ppm, part (s) per million]. It is.
[001 1 ]
Examples of drinking water include tap water, well water, mineral water, and the like.
[001 2 ]
Since the modifier for drinking water is added to drinking water, water as a solvent for zinc sulfate may be used as drinking water. When a drinking water modifier is added to drinking water to make a modified drinking water, if the drinking water modifier is diluted 1000 to 10,000 times (volume ratio) with drinking water, Contains zinc at a rate of 0.1 to 0.3 mg / L. If zinc is included in the modified drinking water in such a ratio, even if 10 L of the modified drinking water is drunk per day, the daily intake of zinc is the allowable upper limit intake (30 mg) per day. Therefore, there is an advantage that the modified drinking water can be used for beverages in the same manner as drinking water such as other tap water and mineral water. Moreover, since zinc has a bactericidal effect, there is an advantage that a sufficient bactericidal effect can be imparted to the modified drinking water containing zinc in the above proportion.
[001 3 ]
In addition, magnesium sulfate, copper sulfate, molybdenum sulfate, or the like can be dissolved in the drinking water modifier as required. In this case, for example, zinc sulfate, magnesium sulfate, copper sulfate, and molybdenum sulfate are added to tap water at a ratio of 1500 mg / L for zinc, 15000 mg / L for magnesium, 150 mg / L for copper, and 1.5 mg / L for molybdenum. In order to prepare a drinking water modifier, the resulting drinking water modifier is diluted 5000 times (volume ratio) with tap water, and the modified tap water is used for beverages. For example, even if 10 L of modified tap water is drunk per day, the daily intake of zinc, magnesium, copper, and molybdenum can be set at the allowable upper limit intake per day (zinc: 30 mg, magnesium: 130-700 mg, copper : 9 mg, molybdenum: 60 to 250 mg) or substantially the same or less.
[001 4 ]
Thus, according to the drinking water modifier, there is an advantage that zinc as a mineral component can be stably contained in the drinking water and a sufficient bactericidal effect can be imparted to the drinking water.
[001 5 ]
Here, if the drinking water modifier contains an inorganic flocculant made of aluminum sulfate or iron sulfate as necessary, organic substances and impurities in the drinking water can be agglomerated. There is an advantage that it can be purified. And since the organic substance used as the bait of microorganisms is removed by aggregation, a bactericidal effect can be improved more. In this case, the modified drinking water is preferably filtered through a filter (pore diameter: 1 μm) or the like to separate the aggregates.
[001 6 ]
Moreover, the modifier for drinking water may contain the aqueous solution which melt | dissolved and extracted the natural ore with the sulfuric acid. In this case, it is desirable to dissolve and extract with 10 to 40% sulfuric acid so that the natural ore is 10 to 20% by weight. Further, if the ratio of zinc is small in the extracted aqueous solution alone, an appropriate amount of zinc sulfate or the like may be added separately. Thus, since a relatively cheap natural ore can be used as a raw material, there is an advantage that the cost can be reduced. In addition, although such a natural ore is not specifically limited, For example, the nakidin metamorphic rock (Nakijin chlorite) etc. which use chlorite (chlorite) as a main component mineral can be used conveniently.
[001 7 ]
【Example】
Next, although an Example demonstrates further in detail, this invention is not limited to this Example.
[001 8 ]
[Example 1]
Example of Bacteriostatic Action by Addition of Zinc (Zinc Concentration: 0.1 mg / L) An improving agent for drinking water was prepared by dissolving zinc sulfate in water so that the ratio of zinc was 500 mg / L. Prepare tap water from which hypochlorous acid has been removed using activated carbon, and use the same as Comparative Example 1 so that the treatment zone is a 5000-fold dilution (volume ratio) of the prepared drinking water modifier. Added to. This modified drinking water having a zinc concentration of 0.1 mg / L after addition was stored at room temperature, and the change over time in the number of general viable bacteria was measured. The results are shown in Table 1.
[00 19 ]
[Table 1]

[002 0 ]
[Example 2 and Example 3]
An aqueous solution having a specific gravity of 1.16 was prepared by dissolving natural ore [Nakidin metamorphic rock (Nakidin chlorite) containing chlorite] as a main constituent mineral in 10% sulfuric acid. The components of this aqueous solution are shown in Table 2.
[002 1 ]
[Table 2]

[002 2 ]
Zinc sulfate was added to the above aqueous solution so that the total amount of zinc was 1500 mg / L to prepare a drinking water modifier. The resulting drinking water modifier was diluted 5000 times (volume ratio) with tap water, and the diluted tap water was filtered through a filter (pore diameter: 0.5 μm) to separate aggregates, Furthermore, it passed through activated carbon. The water treated in this way was normally used in a water storage type water cooler (about 10 L per day), and the number of viable bacteria was measured after one month. The results are shown in Table 3 (Example 2 in which the first operation was performed twice and Example 3 in the second operation).
[002 3 ]
[Table 3]

[002 4 ]
[Comparative Example 2 and Comparative Example 3]
After passing tap water to which a modifier for drinking water was not added through activated carbon, the number of general viable bacteria was measured by using it normally in a water storage type water cooler. The results are shown in Table 3 (Comparative Example 2 is the first of the same operations performed twice and Comparative Example 3 is the second).
[002 5 ]
【The invention's effect】
As described above, according to the first aspect of the present invention, zinc sulfate or zinc chloride is dissolved in water so that zinc is contained at a ratio of 100 to 3000 mg / L. Zinc as a mineral component can be stably contained in the drinking water to which is added, and a sufficient bactericidal effect can be imparted to the drinking water. Furthermore, since the inorganic flocculant which consists of aluminum sulfate and / or iron sulfate is included, the organic substance and impurity in the drinking water to which this modifier for drinking water is added can be agglomerated, Therefore Drinking water can be purified. And since the organic substance used as the bait of microorganisms is removed by aggregation, a bactericidal effect can be improved more.
[002 6 ]
According to the second aspect of the present invention, since an aqueous solution obtained by dissolving and extracting natural ore with sulfuric acid is contained, a relatively cheap natural ore can be used as a raw material, and thus cost reduction can be achieved.
[002 7 ]
According to invention of Claim 3 , since the said modifier for drinking water is added to drinking water so that zinc may be contained in the ratio of 0.1-0.3 mg / L, other drinking water Can be used for beverages as well.

Claims

For drinking water, characterized in that zinc sulfate or zinc chloride is dissolved in water so that zinc is contained at a rate of 100 to 3000 mg / L , and an inorganic flocculant composed of aluminum sulfate and / or iron sulfate is contained . Modifier.

The modifier for drinking water according to claim 1, comprising an aqueous solution obtained by dissolving and extracting natural ore with sulfuric acid.

Modified drinking water, wherein the drinking water modifying agent according to claim 1 or 2 is added to the drinking water so that zinc is contained at a ratio of 0.1 to 0.3 mg / L.