JPH06114371A - Packing agent for water purifier, water purifier, purification of drinking water and production of water rich in calcium - Google Patents
Packing agent for water purifier, water purifier, purification of drinking water and production of water rich in calciumInfo
- Publication number
- JPH06114371A JPH06114371A JP26847392A JP26847392A JPH06114371A JP H06114371 A JPH06114371 A JP H06114371A JP 26847392 A JP26847392 A JP 26847392A JP 26847392 A JP26847392 A JP 26847392A JP H06114371 A JPH06114371 A JP H06114371A
- Authority
- JP
- Japan
- Prior art keywords
- water
- calcium
- water purifier
- phosphate
- filler
- 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
Landscapes
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、家庭用及び業務用に使
用される水道水を安全で、おいしい水にする浄水器用充
填剤、浄水器、飲料水の浄化方法及びカルシウムを富化
した水の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filler for a water purifier, a water purifier, a method for purifying drinking water, and a calcium-enriched water for making tap water used for domestic and commercial use safe and delicious. Manufacturing method.
【０００２】[0002]
【従来技術及びその問題点】近年、河川の汚染が進み、
浄水場に流入する原水も著しく汚染されているため上水
処理に重大な影響が生じており、例えば、殺菌に使用さ
れる塩素量を増加しなければ安全な飲料水を得ることが
できなくなっている。この塩素使用量の増加は、残留塩
素も増加して飲料水に不快な臭いや味を与えるばかり
か、トリハロメタン等の人体に有害な化合物を生成する
点で問題となっている。また、高層住宅では水槽及び配
管からの赤さびや細菌の混入が問題となっている。その
ため、家庭用浄水器が急速に普及してきた。[Prior art and its problems] In recent years, pollution of rivers has progressed,
The raw water that flows into the water treatment plant is also heavily polluted, which has a significant impact on the treatment of tap water.For example, safe drinking water cannot be obtained unless the amount of chlorine used for sterilization is increased. There is. This increase in the amount of chlorine used poses a problem in that not only does residual chlorine increase to give unpleasant odor and taste to drinking water, but also compounds such as trihalomethane that are harmful to the human body are produced. Also, in high-rise houses, contamination of red rust and bacteria from aquariums and pipes is a problem. Therefore, household water purifiers have rapidly spread.
【０００３】家庭用浄水器としては、古くは活性炭のみ
を充填した浄水器が用いられていたが、最近では活性炭
と中空糸膜とを併用したものが主流となっている。中空
糸膜は、細菌や赤さびを透過しないが、ミネラルは透過
しうるので、おいしい水を得るのに好適であると言われ
ている。しかしながら、飲料水にはミネラル分が含まれ
ていた方が美味しいと言われる反面、あまりミネラル濃
度が高いと、下痢の原因となるなど、濃度の問題があ
る。また、ヨーロッパ等の水には下剤としての薬効があ
る硫酸マグネシウムが多いため下痢しやすいと言われて
いる。そこで、亜鉛、マグネシウム、硫酸イオン等の有
害な成分を除去しうる浄水器が望まれるが、上記の活性
炭と中空糸膜を併用した浄水器では、充分ではない。As a domestic water purifier, a water purifier filled with only activated carbon was used in the old days, but recently, a combination of activated carbon and a hollow fiber membrane has become mainstream. The hollow fiber membrane is said to be suitable for obtaining delicious water, since it does not permeate bacteria and red rust but permeates minerals. However, while it is said that it is delicious that minerals are contained in drinking water, if the mineral concentration is too high, it causes diarrhea, which causes concentration problems. In addition, it is said that diarrhea is likely to occur because water in Europe contains a large amount of magnesium sulfate which has a medicinal effect as a laxative. Therefore, a water purifier capable of removing harmful components such as zinc, magnesium, and sulfate ions is desired, but the water purifier using the activated carbon and the hollow fiber membrane is not sufficient.
【０００４】[0004]
【発明の目的】本発明は、有害であるか又は異臭味の原
因となる不純物を除去して飲料水をさらに浄化しうる浄
水器及びこれに充填する充填剤を提供するとともに、、
カルシウムイオンを富化した水を製造しうる方法を提供
することを目的とする。It is an object of the present invention to provide a water purifier capable of further purifying drinking water by removing impurities which are harmful or cause an off-flavor, and a filler to be filled therein.
It is an object of the present invention to provide a method capable of producing water enriched with calcium ions.
【０００５】[0005]
【発明の概要】本発明は、リン酸カルシウム系化合物が
様々な陽イオン及び陰イオンを吸着しうる物質であるこ
とに着目し、これを充填剤として用いることによって上
記目的を達成したものである。すなわち、本発明による
浄水器用充填剤は、未焼成又は焼成リン酸カルシウム系
化合物粒子から成ることを特徴とする。SUMMARY OF THE INVENTION The present invention has achieved the above object by paying attention to the fact that a calcium phosphate compound is a substance capable of adsorbing various cations and anions, and using this as a filler. That is, the filler for a water purifier according to the present invention is characterized by comprising uncalcined or calcined calcium phosphate compound particles.
【０００６】本発明の充填剤に用いるリン酸カルシウム
系化合物としては、ハイドロキシアパタイト、α−リン
酸三カルシウム、β−リン酸三カルシウム及びリン酸四
カルシウムが挙げられ、これらは単独で又は２種以上混
合して用いることができる。殊に、リン酸カルシウム系
化合物として、リン酸三カルシウムを１０重量％以上含
有する充填剤は、通水によって僅かに溶解して水中にカ
ルシウムイオンを富化することができ、カルシウムの補
給に有用である。リン酸三カルシウムの量が１０重量％
未満では、カルシウム富化の効果が充分に持続しない。Examples of the calcium phosphate compound used in the filler of the present invention include hydroxyapatite, α-tricalcium phosphate, β-tricalcium phosphate and tetracalcium phosphate, which may be used alone or in admixture of two or more. Can be used. In particular, a filler containing 10% by weight or more of tricalcium phosphate as a calcium phosphate-based compound can be slightly dissolved by passing water to enrich calcium ions in water and is useful for supplementing calcium. . The amount of tricalcium phosphate is 10% by weight
If it is less than the above, the effect of calcium enrichment is not sufficiently sustained.
【０００７】本発明に用いるリン酸カルシウム系化合物
は、粉末又は顆粒状であってよく、５〜１０００μｍの
平均粒径を有するものであるのが好ましい。平均粒径が
５μｍ未満では、通水性が悪くなり実用上問題となり、
１０００μｍを超えると、比表面積が小さくなり、ま
た、顆粒の間の空隙が大きくなるため浄水能力が低下す
る。また、リン酸カルシウム系化合物粒子は、未焼成の
ものでも、１３００℃以下の温度で焼成あるいは熱処理
したものでもよい。焼成温度は９００℃以下が好まし
い。９００℃を超える温度で焼成すると、結晶粒子間の
間隙が小さくなり、比表面積が小さくなる傾向がある。The calcium phosphate compound used in the present invention may be in the form of powder or granules, and preferably has an average particle size of 5 to 1000 μm. If the average particle size is less than 5 μm, the water permeability becomes poor, which is a practical problem.
If it exceeds 1000 μm, the specific surface area becomes small, and the voids between the granules become large, so that the water purification capacity decreases. The calcium phosphate-based compound particles may be uncalcined or may be calcined or heat-treated at a temperature of 1300 ° C or lower. The firing temperature is preferably 900 ° C or lower. When firing at a temperature higher than 900 ° C., the gap between crystal grains becomes small and the specific surface area tends to become small.
【０００８】粉末粒子の場合は、一次粒子の間隙を有す
る多孔質粉体であるのが好ましい。また、顆粒の場合、
多孔質顆粒であるのが好ましい。多孔質顆粒は、公知の
方法でリン酸カルシウム系化合物の結晶粒子を原料とし
て様々な方法で製造することができる。多孔質顆粒は、
１０〜１００ｍ2 ／ｇの比表面積を有するものが好まし
い。比表面積が１０ｍ2 ／ｇ未満であると浄水能力が小
さくなり、１００ｍ2／ｇを超えると、粒子強度が小さ
くなり、通水時に粒子が破壊される恐れがある。In the case of powder particles, it is preferably a porous powder having a gap between primary particles. In the case of granules,
It is preferably a porous granule. The porous granules can be produced by various methods using known methods as the crystalline particles of the calcium phosphate compound as a raw material. Porous granules
Those having a specific surface area of 10 to 100 m 2 / g are preferable. If the specific surface area is less than 10 m 2 / g, the water purification capacity will be small, and if it exceeds 100 m 2 / g, the particle strength will be small and the particles may be broken during water passage.
【０００９】本発明の充填剤は、様々な陽イオン（すな
わち、ミネラル）及び陰イオンを吸着除去することがで
き、活性炭と同等又はそれ以上の吸着能を示す。したが
って、本発明は、本発明の充填剤を単独で、あるいは活
性炭及び／又は中空糸膜と併用して充填した浄水器を提
供するものである。本発明の浄水器に通水することによ
り、水質の良い飲料水を調製することができる。The filler of the present invention can adsorb and remove various cations (that is, minerals) and anions, and exhibits an adsorption capacity equal to or higher than that of activated carbon. Therefore, the present invention provides a water purifier filled with the filler of the present invention alone or in combination with activated carbon and / or a hollow fiber membrane. By passing water through the water purifier of the present invention, drinking water with good water quality can be prepared.
【００１０】[0010]
【実施例】次に、実施例に基づいて本発明をさらに詳細
に説明するが、本発明はこれによって制限されるもので
はない。The present invention will be described in more detail based on the following examples, but the invention is not intended to be limited thereby.
【００１１】実施例１ 東レ社製浄水器（商品名トレビーノミニ）のカートリッ
ジ（中空糸と活性炭を併用したもの）から活性炭を取り
出し、充填剤を入れ替えた後、不織布でふたをし、下記
の記号で示す試験浄水器を作成した。なお、リン酸カル
シウム系化合物から成る充填剤は、いずれも粒径が１０
μｍ前後の粉末であり、一次粒子の間隙を有する多孔質
粉体である。Example 1 Activated carbon was taken out from a cartridge (a combination of hollow fiber and activated carbon) of a water purifier (trade name Trebino Mini) manufactured by Toray Industries, and after replacing the filler, the activated carbon was covered with a non-woven fabric. The test water purifier shown by was created. It should be noted that the fillers made of calcium phosphate-based compounds all have a particle size of 10
It is a powder of about μm and is a porous powder having a gap between primary particles.
【００１２】記号 充填剤 熱処理 Ａ ハイドロキシアパタイト（３０ｇ） 未焼 Ｂ ハイドロキシアパタイト（３０ｇ） ５００℃で４時間焼結 Ｃ ハイドロキシアパタイト（２８ｇ） ７００℃で４時間焼結 Ｄ リン酸三カルシウム（２８ｇ） 未焼 Ｅ リン酸三カルシウム（２８ｇ） ５００℃で４時間焼結 Ｆ リン酸三カルシウム（２８ｇ） ７００℃で４時間焼結 Ｇ α−リン酸三カルシウムとリン酸四カルシウムの混合物（２８ｇ） Ｈ 活性炭（トレビーノミニの未使用品） なお、ＧはＣa ／Ｐ比が１．６７のリン酸カルシウムを
減圧下で１２００℃で熱分解して得られたものである。 Symbol Filler Heat treatment A Hydroxyapatite (30g) Unbaked B Hydroxyapatite (30g) Sintered at 500 ° C for 4 hours C Hydroxyapatite (28g) Sintered at 700 ° C for 4 hours D Tricalcium phosphate (28g) Not Baked E Tricalcium phosphate (28g) Sintered at 500 ° C for 4 hours F Tricalcium phosphate (28g) Sintered at 700 ° C for 4 hours G Mixture of α-tricalcium phosphate and tetracalcium phosphate (28g) H Activated carbon (Unused Trebino Mini) G is obtained by pyrolyzing calcium phosphate having a Ca / P ratio of 1.67 at 1200 ° C. under reduced pressure.
【００１３】作成した浄水器に水道水を通水し、流出し
た水について原子吸光分析法により総鉄（水中に溶解し
ている鉄及び酸で煮沸溶解する鉄）、銅、亜鉛、カルシ
ウム及びマグネシウムの濃度を測定し、結果を表１に示
す。また、イオンクロマトグラフィーにより流出水中の
塩素イオン、硝酸イオン、リン酸イオン及び硫酸イオン
の濃度を測定し、さらに流出水のpHを測定し、結果を表
２に示す。Tap water is passed through the prepared water purifier, and total iron (iron dissolved in water and iron dissolved in acid by boiling), copper, zinc, calcium and magnesium are analyzed by atomic absorption spectrometry with respect to the discharged water. Was measured and the results are shown in Table 1. Further, the concentrations of chloride ion, nitrate ion, phosphate ion and sulfate ion in the outflow water were measured by ion chromatography, and the pH of the outflow water was also measured. The results are shown in Table 2.
【００１４】[0014]
【表１】 [Table 1]
【００１５】[0015]
【表２】 注）ｐは、ピークが見られるが、リテンションタイムが
ピーク同定許容時間内に入らず、濃度を測定できなかっ
たことを示す。[Table 2] Note: p indicates that a peak was observed, but the retention time was not within the peak identification allowable time, and the concentration could not be measured.
【００１６】[0016]
【発明の効果】本発明の浄水器用充填剤を用いれば、活
性炭を使用した場合とほぼ同等又はそれ以上の不純物除
去作用を達成することができ、安全で、おいしい飲料水
を得ることができ、また、日本人の食生活において不足
しがちなカルシウムを補給した健康に良い飲料水を得る
ことができる。本発明の充填剤を単独で、あるいは活性
炭及び／又は中空糸と併用して充填して効果的な家庭用
及び業務用浄水器を提供することができる。EFFECTS OF THE INVENTION By using the filler for water purifiers of the present invention, it is possible to achieve an effect of removing impurities which is almost equal to or more than that when activated carbon is used, and safe and delicious drinking water can be obtained. Further, it is possible to obtain healthy drinking water supplemented with calcium, which tends to be insufficient in Japanese dietary habits. By filling the filler of the present invention alone or in combination with activated carbon and / or hollow fiber, it is possible to provide an effective domestic and commercial water purifier.
Claims (7)
物粒子から成ることを特徴とする浄水器用充填剤。1. A filler for a water purifier, which comprises uncalcined or calcined calcium phosphate-based compound particles.
キシアパタイト、α−リン酸三カルシウム、β−リン酸
三カルシウム及びリン酸四カルシウムのうちの１種以上
である請求項１記載の浄水器用充填剤。2. The filler for a water purifier according to claim 1, wherein the calcium phosphate compound is one or more of hydroxyapatite, α-tricalcium phosphate, β-tricalcium phosphate and tetracalcium phosphate.
〜１０００μｍの平均粒径を有するものである請求項１
又は２記載の浄水器用充填剤。3. The particles are powder particles or granular particles, 5
2. It has an average particle size of ˜1000 μm.
Or the filler for a water purifier according to 2.
カルシウムを１０重量％以上含有する請求項１〜３のい
ずれか１項に記載の浄水器用充填剤。4. The filler for water purifier according to claim 1, wherein the calcium phosphate-based compound contains 10% by weight or more of tricalcium phosphate.
填剤を充填したことを特徴とする浄水器。5. A water purifier filled with the filler according to any one of claims 1 to 4.
填剤を充填した浄水器に通水することを特徴とする飲料
水の浄水方法。6. A water purification method for drinking water, which comprises passing the water through a water purifier filled with the filler according to claim 1.
に通水することを特徴とするカルシウムを富化した水の
製造方法。7. A method for producing calcium-enriched water, which comprises passing water through a water purifier filled with the filler according to claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26847392A JPH06114371A (en) | 1992-10-07 | 1992-10-07 | Packing agent for water purifier, water purifier, purification of drinking water and production of water rich in calcium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26847392A JPH06114371A (en) | 1992-10-07 | 1992-10-07 | Packing agent for water purifier, water purifier, purification of drinking water and production of water rich in calcium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06114371A true JPH06114371A (en) | 1994-04-26 |
Family
ID=17458994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26847392A Pending JPH06114371A (en) | 1992-10-07 | 1992-10-07 | Packing agent for water purifier, water purifier, purification of drinking water and production of water rich in calcium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06114371A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0889944A (en) * | 1994-07-25 | 1996-04-09 | Toto Ltd | Water purifier |
| JPH0975924A (en) * | 1995-09-11 | 1997-03-25 | Toto Ltd | Adsorption element for water purifier |
| EP0720968A4 (en) * | 1994-07-25 | 1997-10-01 | Toto Ltd | Water cleaner |
-
1992
- 1992-10-07 JP JP26847392A patent/JPH06114371A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0889944A (en) * | 1994-07-25 | 1996-04-09 | Toto Ltd | Water purifier |
| EP0720968A4 (en) * | 1994-07-25 | 1997-10-01 | Toto Ltd | Water cleaner |
| JPH0975924A (en) * | 1995-09-11 | 1997-03-25 | Toto Ltd | Adsorption element for water purifier |
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