JPS6295194A - Mineral water producing agent - Google Patents

Abstract

PURPOSE:To produce mineral water having good taste for a long period of time by bringing water to be treated into contact with a mineral water producing agent contg. activated carbon, inorg. salts and ascorbic acid and/or ascorbic acid salt. CONSTITUTION:The water to be treated is contacted with the mineral water producing agent contg. the activated carbon, inorg. salts such as sodium bicarbonate and ascorbic acid and/or ascorbic acid salt. As a result, the free chlorines, moldish odor, etc., in the water to be treated are removed and the mineral water of good taste added with the mineral components is easily produced. Since the ascorbic acid or ascorbic acid salt assists the chlorine adsorption and decomposition power of the activated carbon, the mineral water having the good taste for a long period of time is produced.

Description

[Detailed description of the invention] 3.0's humble and humble ゛■ (Industrial application field) The present invention can be used, for example, to purify tap water.

This invention relates to a mineral water production agent that produces mineral water by dissolving minerals into water.

(Prior art) Chlorine is mixed into tap water for sterilization and disinfection. This chlorine component gives off a so-called chlorine odor. When water quality is severely degraded, such as in summer.

The chlorine concentration in tap water is set high. Additionally, there is a risk of microorganisms such as plankton occurring in the summer. For this reason, in the summer, when tap water is used for drinking, it emits a strong chlorine and mold odor, which increases the unpleasant feeling. Even if tap water is used for diluting coffee, tea, or whisky, etc.
The taste is spoiled due to chlorine odor etc. Additionally, when chlorine in tap water reacts with organic matter, trihalomethanes, which are suspected of being carcinogens, can be produced. Therefore, when using tap water for drinking, it is desirable to purify it by removing chlorine and the like.

Conventionally, water purifiers that are attached to water pipe faucets have been developed to purify tap water. This water purifier uses activated carbon, special filters, etc. to remove free chlorine and other impurities in tap water by adsorbing and decomposing them. However, such water purifiers always
Since water is purified, water that is not intended for drinking is also purified, which has the disadvantage that the period of effective action is shortened. Also.

When the faucet is closed, water from which chlorine components have been removed remains in the purifier, and bacteria breed in this water, resulting in unsanitary conditions. In order to solve these problems, attempts have been made to purify tap water using filters that use root-coated carbon, silver-deposited carbon, etc., which are activated carbon containing silver that is effective against microorganisms. However, even if this filter is used, sufficient effects may not be achieved, but there is also the risk that silver, which is toxic to humans, will be leached into the water.

Recently, as disclosed in Japanese Utility Model Publication No. 50-23006, a purification layer is formed at the bottom of a cup-shaped container using activated carbon, etc., and a pack containing beverage ingredients is attached below the purification layer. Pour water inside.

Water treatment devices have also been developed that purify the water and dissolve raw materials in the water. Even in such a water treatment device, repeated use causes bacteria to grow in the purification layer, resulting in unsanitary conditions. If it is disposable, it will be uneconomical. Furthermore, even if the adsorption capacity of activated carbon decreases, the extent to which it decreases is unknown. In particular, the adsorption ability of trihalomethanes in activated carbon is significantly reduced.

(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional problems, and its purpose is to adsorb and decompose free chlorine in the water to be treated, and to adsorb mold odor and trihalomethane. To provide a mineral water production agent capable of producing delicious mineral water by dissolving inorganic salts into water.

Another object of the present invention is to provide a mineral water manufacturing agent that can prevent a decrease in chlorine adsorption and decomposition of activated carbon and can produce delicious mineral water over a long period of time.

(Means for Solving the Problems) The present invention is a mineral water manufacturing agent that elutes mineral substances into the water to be treated by contacting the water to be treated and turns the water to be treated into mineral water, comprising: activated carbon and
Contains inorganic salts and ascorbic acid and/or ascorbate.

This achieves the above objective.

The activated carbon in the present invention adsorbs and decomposes free chlorine in the water to be treated, and also adsorbs mold odor and trihalomethane. Specifically, granular activated carbon or fibrous activated carbon made from coconut, sawdust, etc. is used.

Inorganic salts elute mineral substances (mineral components), which are components of delicious water, into the water to be treated.

Specifically, sodium ions as cations.

One or more of potassium ions, calcium ions, and magnesium ions are eluted into water, and carbonate ions and bicarbonate ions are added as anions.

Salts that elute one or more of sulfate ions, chloride ions, phosphate ions, and silicate ions into water are used. It may also be a mixture of two or more types of inorganic salts.

L-ascorbic acid or L-ascorbate assists the chlorine decomposition ability of activated carbon by strongly reductively decomposing free chlorine. Sulfites are considered to be able to reductively decompose chlorine.

It is not approved as a food additive, is undesirable for health, and even impairs taste. L-ascorbic acid is vitamin C and is also favorable for health. Depending on the ratio of L-7su':1lupic acid or L-ascorbate,
The hydrogen ion concentration of the water to be treated is adjusted. A part of the components of L-ascorbic acid or L-ascorbate is eluted into the water to be treated, and this eluted component gives the obtained mineral water a "rich taste". As the ascorbate salt, any one of sodium L-ascorbate, potassium L-ascorbate, calcium L-ascorbate, and magnesium L-ascorbate, or a combination of two or more thereof is used.

The mineral water manufacturing agent of the present invention is a nonwoven fabric.

The free chlorine in the water is decomposed by activated carbon and L-ascorbic acid or L-ascorbate by enclosing it in a water-permeable bag such as paper and immersing it in a predetermined amount of water to be treated for a predetermined time. - Mineral water can be produced by adsorbing and eluting mineral substances in inorganic salts into water.

Further, one of the water-impermeable bags or boxes, for example, the upper and lower parts, is made of a water-permeable material so that the water to be treated can pass therethrough, and the mineral water producing agent of the present invention is sealed therein. If the water to be treated is passed through it from the top, the water to be treated will surely come into contact with the surface of the activated carbon, and mold odors and
Trihalomethane and the like are efficiently adsorbed, and mineral components are also efficiently eluted into the water to be treated, resulting in delicious mineral water.

(Example) Examples of the present invention will be described below.

Example 1 Coconut shell activated carbon (Granular mill RWHJ manufactured by Takeda Pharmaceutical Co., Ltd.) 5 g Inorganic salts Sodium carbonate 100 ■ Sodium chloride 125 ■ Calcium chloride 40 ■ Magnesium chloride
10 ■ Potassium chloride
1010■L-ascorbic acid
80■ L-Sodium Ascorbate 2
0 ■ The mineral water manufacturing agent obtained by the above formulation is sealed in a cylindrical plastic container with a nonwoven fabric pasted on the upper and lower openings, and the plastic container is placed in the bottom of a plastic container with an inner capacity of 12. The plastic container was attached to the through hole in a watertight manner, the container was placed on a container such as a water pitcher, and 11 tap water was poured into the plastic container. In about 5 minutes, the 11 tap water passes through 9 cylindrical plastic containers, and during this passage, free chlorine contained in the tap water is removed, mineral components are added, and the container is filled with water. , no free chlorine.

Mineral water lx with added mineral ingredients
was gotten.

Coconut shell activated carbon (manufactured by Kuraray Chemical Co., Ltd. “Kuraray Coal GWJ”)
) 5g Inorganic salts Sodium bicarbonate 50■ Sodium chloride 50mg Potassium chloride
50 ■ Calcium sulfate
30 ■ Magnesium chloride 10 mg L-ascorbic acid 509 The mineral water manufacturing agent obtained by the above formulation was sealed in a 6 am x 6 cm bag made of water permeable non-woven fabric (manufactured by Nippon Vilene Co., Ltd., "OI, -150J"). Then, the surrounding area was heat-sealed using a heat sealer.The bag was sealed with a polyethylene tube (20 cm x 2 Q cm, thickness 0.05
mm), and this opening was heat-sealed integrally with the bag body using a heat sealer to form the polyethylene tube into a bag shape, and a nonwoven fabric bag body was attached to the bottom surface of the polyethylene tube. In this case, by adjusting the amount of heat of the heat sealer, there is no risk that the nonwoven fabric bag itself will be heat sealed in a watertight manner. This polyethylene bag has a through hole in the bottom and has a capacity II! The bag is spread out and fitted into a plastic container, and the nonwoven fabric bag is inserted into the through hole. Then, the plastic container is placed on a container such as a water pitcher. In such a state, tap water 1! When the water was injected into a polyethylene bag, the tap water passed through the nonwoven fabric bag and was stored in the container within about 8 minutes. In the resulting water, no free chlorine was observed, and there was no musty odor, resulting in delicious mineral water.

xJI fresh l A mineral water manufacturing agent obtained by the same formulation as in Example 2 was placed in a filter paper bag of a 2-pack coffee dripper,
Tap water was injected at a rate of 11 parts per 10 minutes, and the treated water was stored in a container. No free chlorine was found in the treated water, and there was no mold odor, resulting in delicious mineral water.

A mineral water manufacturing agent obtained according to the same formulation as in Example 2 was sealed in a bag made of non-woven fabric similar to that in Example 2,
It was immersed in a container containing 11 tap water for 10 minutes. 10
into the treated water in the container after minutes.

No free chlorine was observed.

(Effects of the Invention) In this way, the present invention enables
Free chlorine, mold odor, etc. in the water to be treated are removed, and
Delicious mineral water added with mineral components can be easily obtained. Since L-ascorbic acid or L-ascorbate helps activated carbon to adsorb and decompose chlorine, delicious mineral water can be obtained over a long period of time. Also.

The mineral water manufacturing agent of the present invention can be produced by enclosing it in a partially or fully water-permeable bag and immersing it in the water to be treated, or by enclosing it in a container whose upper and lower parts are water-permeable and placing it inside the container. By passing the water to be treated,
Mineral water is obtained and is highly versatile.

that's all

Claims (1)

[Claims] 1. A mineral water manufacturing agent that elutes mineral substances into the water to be treated and turns the water into mineral water by contacting the water, which comprises activated carbon, inorganic salts, ascorbic acid and/or A mineral water manufacturing agent containing ascorbate.