JPH10216730A - Method and apparatus for marking drinking water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make palatable drinking water safe to the body from raw water containing nitrate nitrogen. SOLUTION: This method is constituted of a magnetizing process magnetizing raw water under 3000-15000 gauss, a filter process filtering water magnetized in a magnetic field 1 in a filter 2 by a mineral filter material of tourmaline and sepiolite, an aeration process aerating filtered water in an aeration tower 3, a circulating process circulating aerated water to the magnetizing process by a pump 4, an ozone blowing-in process blowing ozone into aerated water, a mineral adding process adding minerals to water in which ozone is blown from granite and coral, a sterilizing process sterilizing mineral added water by an ultraviolet lamp, and a filter process filtering a solid in sterilized water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for producing drinking water that is safe, delicious and healthy for the body from raw water containing nitrate nitrogen and the like.

[0002]

2. Description of the Related Art When groundwater is used as raw water for water supply, it must satisfy water quality standards that regulate 40 harmful substances. In recent years, contamination with nitrate nitrogen and phenol, as well as organic chlorinated compounds such as trihalomethane as harmful substances, has become apparent in foreign countries and in Japan. The water quality standard for nitrate nitrogen is 10 mg / l for nitrate nitrogen and nitrite nitrogen in the Ministry of Health and Welfare Ordinance No. 56 dated August 31, 1978. Nitrate and nitrite turn into inorganic ions in the nitrogen cycle and exist in nature. Organic nitrogen contained in fertilizer, wastewater from livestock facilities, domestic wastewater, and wastewater from septic tanks enters the soil and is first decomposed into ammoniacal nitrogen to change from nitrite to nitrate. Therefore, nitrate is predominant in groundwater, but its concentration is higher due to nitrogen fertilizers and human and livestock excrement. Nitrate and nitrite ions easily move with groundwater in soil. The source of nitrate in the human body is diet,
For example, it is a preservative added to vegetables and meat products, and is drinking water.

Known examples of removing nitrate nitrogen and nitrite nitrogen contained in raw water include JP-A-8-155438 and JP-A-8-155442. JP 8
JP-A-155438 discloses that a water-permeable bag disposed in a water passage is filled with granular ores such as Ioite and green sea rock to adsorb nitrate nitrogen and nitrite nitrogen. Is composed of a network of synthetic fibers coated with a resin film to which far-infrared radiating ceramic particles are added, and an example in which a magnetic flux line supply area having a magnetic flux density of 180 to 320 Gauss is provided on the upstream and downstream sides of the water-permeable bag. Have been. The magnetic field supply area changes the water clusters and enhances the functional activity of the treated water. The effect becomes uneven at 180 Gauss or less, and at 320 Gauss or more, the magnetic field lines are too strong to destabilize the water clusters. .

On the other hand, Japanese Patent Application Laid-Open No. 8-155442 has a permanent magnet and a far-infrared radiator, and Table 3 shows data of untreated water and treated water in the items of nitrate nitrogen and nitrite nitrogen. There is disclosed an example in which treated water is greatly reduced compared to untreated water. However, it is not clear whether the reduction of nitrate nitrogen and nitrite nitrogen is due to the far-infrared radiator or the permanent magnet, or the synergistic effect of the far-infrared radiator and the permanent magnet, and the magnetic flux density of the permanent magnet is also unknown. is there.

[0005]

The nitrate ingested by the human body is not directly metabolized to other compounds, but especially in infants less than 3 months, when stomach acid is reduced, bacteria can easily reduce nitrate to nitrite, and the Increases nitrite. This nitrite reacts with hemoglobin in the blood to produce methemoglobin, which causes methemoglobinemia which is unable to carry oxygen and leads to suffocation. In the case of adults, nitrite reacts with secondary amines and other amine substrates to produce N-nitroso compounds, which are considered carcinogens. Also, phenol is one of the carcinogenic substances.

[0006] When the nitrate nitrogen pollution exceeding the water quality standard of the groundwater is found, the pollution removal technique cannot cope with the coagulation sedimentation, sand filtration, activated carbon adsorption, aeration, chlorine and ozone oxidation of the conventional water treatment method. It is said that ion exchange, which is a special treatment method, is effective. However, raw water for water supply has a large treatment amount. For example, in a town of 10,000 people, if the supply amount is 200 liters (l) per day per person, it is 2,000. Since the ion exchange resin is expensive, the cost of the removing device is high, and the treatment of the waste liquid containing salt is difficult due to the regeneration performed every day.

An object of the present invention is to produce safe and delicious drinking water for the body from raw water containing nitrate nitrogen.

[0008]

SUMMARY OF THE INVENTION The object of the present invention is to supply raw water with 3
This is achieved by having a magnetizing step of magnetizing with a magnetic flux of 000 to 15,000 gauss and an aeration step of aerating the magnetized raw water. The purpose of the above is to make raw water
This is achieved by having a magnetizing step of magnetizing with a magnetic flux of 5,000 gauss, a filtering step of filtering the magnetized raw water with a mineral filter medium, and an aeration step of aerating the filtered raw water. The above purpose is to make raw water 3,000 ~ 15,000.
A magnetizing step of magnetizing with a magnetic flux of 0 gauss; a filtering step of filtering the magnetized raw water with a mineral filter medium; an aeration step of aerating the filtered raw water; and a circulating step of circulating the aerated raw water to the magnetizing step. This is achieved by having The object is to provide the aerated water from the aeration step with:
Further, an ozone blowing step of blowing ozone, a mineral adding step of adding a mineral to water from the ozone blowing step, a sterilizing step of sterilizing water from the mineral adding step, and a filtration of filtering water from the sterilizing step This is achieved by providing a process. Preferably, the mineral filter medium includes tourmaline.

[0009] Further, an apparatus for producing drinking water which achieves the above object comprises a magnetizing means for magnetizing raw water with a magnetic flux of 3,000 to 15,000 gauss, and a filtering means for filtering the magnetized raw water with a mineral filter medium. Aeration means for aerating the filtered raw water.

[0010] Further, another drinking water producing apparatus of the present invention for achieving the above object further comprises an ozone blowing means for blowing ozone into the water aerated by the aeration means, and a mineral to the water treated by the ozone blowing means. It is characterized by comprising mineral addition means to be added, sterilization means for sterilizing water treated by the mineral addition means, and filtration means for filtering water treated by the sterilization means.

[0011] According to the above configuration, the raw water is 3,000 to 1
By applying a magnetic flux of 5,000 gauss and magnetizing and aerating, nitrate nitrogen is removed, and water clusters can be reduced to make delicious water. The magnetized raw water is filtered through a mineral filter medium containing tourmaline and aerated to remove the organic chlorine compounds trihalomethane, arsenic, organic substances, phenol and the like in addition to nitrate nitrogen. The removal efficiency can be increased by circulating the aerated water to the magnetization step and repeating the magnetization, filtration, and aeration.

Also, ozone is blown into the aerated water to increase the dissolved oxygen in the water, thereby increasing the solubility of minerals, eliminating odors, and sterilizing. By adding minerals to the water into which ozone has been blown, various minerals necessary for body composition can be replenished and the water can be made delicious. Further, Escherichia coli and the like in the water to which the mineral is added are sterilized, and impurities such as earth and sand are removed by filtering the sterilized water, whereby safe and clean water can be obtained.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a flow chart showing the steps of the embodiment of the present invention. The magnetizing step magnetizes groundwater, which is raw water for drinking water, with a magnetic field of 1 under a magnetic flux of 3,000 to 15,000 gauss. In the filtration step, magnetized water is passed through a filter 2 filled with granulated tourmaline and sepiolite as a mineral filter medium. Instead of sepiolite, zeolite, bentonite, kaolinite, alumina and the like can also be used.

In the aeration step, an aeration tower 3 having a diffuser tube therein is provided.
To supply water from outside to aerate the water that has passed through the filter 2. In the circulation process, the magnetic field 1 was supplied from the outlet of the aeration tower 3 by the pump 4.
Circulate clean water to the entrance of the house. When the operation of circulating from the aeration tower 3 to the magnetic field 1 by the pump 4 was performed for 1.5 hours, 50 mg / l of NO ₂ contained in the raw water was reduced to 0.01 to 0.0
It was reduced to 8 mg / l. In this case, the removal rate is 99.84-
99.98%. In addition, 50
NO ₃ of mg / l is reduced to 0.05~0.15mg / l. In this case, the removal rate was 99.7 to 99.9%. Since the water quality standard is 10 mg / l, a removal rate of 80% is sufficient to satisfy the water quality standard, and the treatment time can be reduced from 1.5 hours. In some cases, the water is directly purified without circulating the water at the outlet of the aeration tower 3. It is good. When raw water does not contain trichlormethane, arsenic, organic matter, phenol, or the like as an organic chlorine compound, the filter 2 may be bypassed.

As described above, according to the present embodiment, nitrate nitrogen contained in raw water can be efficiently removed by a simple apparatus, and waste water treatment and the like are not required. Further, the present invention can efficiently remove nitrate nitrogen from water containing nitrate nitrogen other than groundwater.

Next, a process according to another embodiment of the present invention will be described.
In another embodiment of the present invention, an ozone blowing step, a mineral addition step, a sterilization step, and a filtration step are provided after the aeration tower 3 shown in FIG. In the ozone blowing step, ozone is blown into the aerated water at the outlet of the aeration tower 3 to increase dissolved oxygen in the water to increase the solubility of minerals in the next step, eliminate odors, and perform sterilization. The mineral addition step adds minerals from barley stone and coral to the water into which ozone has been blown, increases the various minerals in the drinking water, and makes the water delicious. In the sterilization step, various bacteria such as Escherichia coli are sterilized by an ultraviolet lamp. In the filtration step, solid matter such as earth and sand is removed by filtration. As described above, according to this embodiment, the harmful substances nitrate nitrogen, arsenic, organic matter, phenol, and trihalomethane are removed, water molecules are aligned, clusters are reduced, and the viscosity of water is increased.
A body-friendly drinking water (mineral water) containing a large amount of oxygen and containing minerals can be provided.

[0017]

According to the present invention, harmful substances such as nitrate nitrogen, arsenic, organic matter, phenol, trihalomethane, various germs and solids are removed, water molecules are aligned, clusters are reduced, and water viscosity is increased. Thus, it is possible to produce body-friendly drinking water containing a large amount of dissolved oxygen and minerals.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Magnetic field 2 Mineral filter medium filter 3 Aeration tower 4 Pump

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI C02F 1/68 520 C02F 1/68 520N 520S 520V 520P 530 530A 540 540B 540F 540Z 1/78 1/78

Claims (7)

[Claims] 1. A method for producing drinking water, comprising: a magnetizing step of magnetizing raw water with a magnetic flux of 3,000 to 15,000 gauss; and an aeration step of aerating the magnetized raw water. 2. A magnetizing step of magnetizing raw water with a magnetic flux of 3,000 to 15,000 gauss, a filtering step of filtering the magnetized raw water with a mineral filter medium, and an aeration step of aerating the filtered raw water. A method for producing drinking water, comprising: 3. A magnetizing step of magnetizing raw water with a magnetic flux of 3,000 to 15,000 gauss, a filtering step of filtering the magnetized raw water with a mineral filter medium, and an aeration step of aerating the filtered raw water. Circulating the aerated raw water to the magnetizing step. 4. The ozone blowing step of blowing ozone into the aerated water from the aeration step according to any one of claims 1 to 3, and a mineral adding step of adding a mineral to the water that has passed through the ozone blowing step. A method for producing drinking water, comprising: a sterilization step of sterilizing water that has passed through the mineral addition step; and a filtration step of filtering water that has passed through the sterilization step. 5. The method according to claim 2, wherein the mineral filter medium includes tourmaline. 6. A magnetizing means for magnetizing raw water with a magnetic flux of 3,000 to 15,000 gauss, a filtering means for filtering the magnetized raw water with a mineral filter medium, and an aeration means for aerating the filtered raw water. An apparatus for producing drinking water, comprising: 7. The ozone blowing means for blowing ozone into the water aerated by the aeration means, a mineral adding means for adding a mineral to the water treated by the ozone blowing means, and the mineral adding means An apparatus for producing drinking water, comprising: sterilizing means for sterilizing water treated by the method; and filtration means for filtering the water treated by the sterilizing means.