JP2761370B2 - Water treatment method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a water treatment method and apparatus.

[0002]

2. Description of the Related Art Tap water commonly used in daily life depends on the region and the season, but is +500 to +700.
It has a "redox potential" of mV.

As a method for increasing the reducibility of tap water, there is a method in which water is electrolyzed and a portion containing an excess of positive ions is separated. The reducibility is attenuated.

[0004]

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention reduces the oxidation-reduction potential of tap water, groundwater, water such as rivers and lakes, and maintains a low oxidation-reduction potential for a long time. That is the task.

[0005]

SUMMARY OF THE INVENTION The water treatment method of the present invention
The water treatment apparatus is based on the phenomenon that the inventor found completely, that the oxidation-reduction potential decreases when immersed in water while dissimilar metals are brought relatively close to each other. According to the present invention, no physical energy means such as electric power is required, and no chemical means such as a reagent is required to lower the oxidation-reduction potential. It has been confirmed by the inventors that the metal immersed in water does not necessarily need to be 100% pure, but may be an alloy. The metals to be immersed include aluminum, titanium, chromium, manganese, magnesium, iron, nickel, zinc, germanium, arsenic, selenium, molybdenum, technitium, palladium, silver, cadmium, indium, tin, terium, cesium, tungsten, Platinum, gold, bismuth, etc., or alloys thereof can be used.

Therefore, the water treatment utilizing the above phenomenon is basically called "two or more kinds of metals are interconnected by connecting means".
The immersion can be carried out by immersing it in water. Alternatively, the water treatment can be performed by immersing the substrate and the first and second metals fixed by fixing means in water. In this case, the first and second metals are provided "to sandwich the substrate", and the first and second metals are arranged.
Water treatment can be performed using a metal and a substrate which are "fixed to each other" by fixing means.

The "substrate" may be a non-metal such as plastic, but "a metal different from the metal provided on both sides".
When the substrate is made of metal, the first and second metals may be made of the same metal, or the first and second metals may be made of different metals. It is possible. The “form” of the metal is basically arbitrary, and may be an arbitrary-shaped “lump” or a form processed into a predetermined shape such as a spherical shape or a plate shape. It may be in the form of “powder”.

When the metal is used in the form of fine particles or powder, the metal may be immersed in water to be treated in a water-soluble container (bag-like or box-like) if necessary.
For example, the first metal powder or granules are placed in a water-permeable bag, the second metal powder or granules are placed in another water-permeable bag, and these bags are arranged on both sides of the substrate. Water treatment is possible even when immersed in water as described above.

[0009] In the connection form by the above-mentioned "connection means", the mutual relation may be fixedly connected by using a fixture using screws or the like as connection means, or may be connected flexibly by means such as a chain. . The form of the first and second metals can be "flat". Based on the above, the present invention will be described. The water treatment apparatus according to claim 1 is configured as follows. A “plate-shaped metal pair” is formed by making different kinds of plate-shaped metals face each other in parallel. A plurality of the flat metal pairs are arranged in the thickness direction of the metal plate.

[0010] Each of the flat metal pairs is partitioned by a "partition substrate", and "end substrates" are arranged at both ends of the arrangement of the flat metal pairs. Then, the plate-shaped metal on both sides of each partition substrate is held by the partition substrate, and the plate-shaped metal on both ends of the arrangement is held by the end substrate, and the whole is integrally connected by a “connection member”. The partition substrate and the end substrate may be made of a nonmetal such as plastic, or may be made of a metal material.

[0011] The water treatment apparatus according to the second aspect is characterized in that the first to the third
, A pair of substrates, and fixing means.
The “pair of substrates” is provided so as to sandwich the “first flat metal” in the thickness direction. "Second flat metal"
Is provided on the outside of one of the pair of substrates via the first substrate.
Is provided so as to face the flat metal plate. The “third flat metal” is provided outside the other of the pair of substrates so as to face the first flat metal via the substrates.
The “fixing member” fixes the first to third plate-shaped metals and the pair of substrates to each other. Then, among the pair of substrates and the first to third plate-like metals, two or more kinds of dissimilar metal plates are used. "1" in the water treatment apparatus of claim 2
The pair of substrates may be a nonmetal such as plastic, or a pair of substrates may be formed of a metal different from the first to third plate-shaped metals. In this case, "the second and third plate-shaped metals are made of the same kind of metal", and these can be different from the first plate-shaped metal.
The water treatment apparatus may be constituted by integrating the first to third plate-shaped metals and a pair of substrates described in claim 2 as a unit, and by integrating these units with each other by an integrating means. Item 5). In the water treatment apparatus according to claim 5, as a preferred combination of the first to third plate-shaped metals and the material of the pair of substrates, "a pair of substrates is made of titanium,
The first plate-like metal is made of zinc, and the second and third plate-like metals are made of magnesium. "

Further, the above-mentioned substrate, partition substrate, and end substrate are:
This can also be referred to as “a metal surface formed by vapor deposition of plastic”. When these are formed of metal, noble metals such as gold and platinum, stainless steel, titanium, and the like are preferable because they do not easily rust.

[0013] The water treatment apparatus according to claims 1 to 6 described above can have a "magnet member" (claim 7).
In this case, the magnet member may be immersed in the water to be treated together with the metal, or when the container for storing the water to be treated is a non-magnetic material, it may be disposed close to the metal outside the container.

According to an eighth aspect of the present invention, there is provided a water treatment method, wherein the water treatment apparatus according to any one of the first to seventh aspects is immersed in water to be treated to lower the oxidation-reduction potential. .

By this treatment method, the oxidation-reduction potential of ordinary tap water, natural water such as groundwater, rivers and lakes, and distilled water can be lowered, and the oxidation-reduction potential of the water can be reduced over a long period of time. It can be kept low.

[0016]

FIG. 1 shows an embodiment of a water treatment apparatus according to the present invention. The flat metals 10 and 12 are different metals from each other and constitute a “flat metal pair”. The flat metal 10A (in this embodiment, the same type of metal as the flat metal 10) and the flat metal 12A (in this embodiment, the same type of metal as the flat metal 12) also form a flat metal pair. I have. These two flat metal pairs are arranged in the thickness direction of the metal plate, that is, in the x direction in the drawing. The two flat metal pairs are separated by a partition substrate 14, and the end substrates 16,
18 are deployed. The partition substrate 14 holds the flat metal plates 12 and 10A on both sides thereof, and the flat metal plates 1 and
0 and 12A are held by end substrates 16 and 18, respectively. The form of holding may be mechanical holding with screws or the like, or bonding or the like. In the embodiment shown in FIG. The partition board 14 and the end boards 16 and 18 are
The connecting plates 11 and 13 serving as connecting members are connected by engaging slits that engage with each other, and are integrally formed as a whole. The connecting plate 13 has a ferrite magnet 15 as a magnet member.
A, 15B are provided (two ferrite magnets are also provided on the back side (not shown) of the connecting plate 13):
Claim 7). The partition substrate 14, the end substrates 16 and 18, and the connecting plates 11 and 13 may be metal or non-metal, but when made of metal, aluminum, titanium, copper, iron, stainless steel, or the like is preferable.

The size of the water treatment apparatus shown in FIG. 1 can be appropriately set according to the purpose of use. For example, the size in the y direction is 160 mm, the size in the x direction is 10 mm, and the size in the z direction is 50 mm. It is. Flat metal 10, 10A
For example, plate-like metals 12, 12 such as magnesium.
A is preferably zinc or the like. Such a water treatment device can be immersed in water to lower the oxidation-reduction potential. In the embodiment shown in FIG. 1, two pairs of “plate-shaped metal pairs” are arranged. However, three or more pairs can also be arranged. Alternatively, the number of plate-like metals held on one side of the partition substrate or the end substrate may be plural. For example, in FIG. 1, the width (the width in the z direction) of the partition substrate 14 and the end substrates 16 and 18 can be increased, and two or more plate-like metals can be held on one surface thereof. Of course, for example, the end substrate 16
The plurality of flat substrates held in this manner and the plurality of flat metals held on the surface of the partition substrate 14 on the side of the end substrate 16 are opposed to each other so as to form a flat metal pair.

FIG. 2 shows an embodiment of the water treatment apparatus according to the present invention. The first plate-like metal 20 (which is rectangular in this embodiment) has a pair of substrates 26 and 28.
The second plate-shaped metal 22 is provided outside the substrate 26 so as to face the first plate-shaped metal 20 via the substrate 26. Outside the other substrate 28, a third plate-shaped metal 24 is provided so as to face the first plate-shaped metal 20 via the substrate 28. The first to third plate-like metals 20, 22, 24 and the pair of substrates 26, 28 are held at appropriate intervals by spacers 21, and are entirely fixed to each other by bolt screws 25 and nut screws 27. ing. The bolt screw 25, the nut screw 27 and the spacer 21 constitute "fixing means". In the illustrated embodiment, the spacer 21 is made of aluminum. As the combination of the substrate and the flat metal, for example, the substrates 26 and 28: titanium, the flat substrate 20: zinc, and the flat substrates 22 and 24:
Magnesium can be mentioned. As an example of the dimensions, a height: 150 mm, a width (a size in a direction perpendicular to the drawing): 70 mm, and a thickness: 25 mm can be given. The spacer 21 has a thickness of 3 mm. By immersing such a water treatment apparatus in water W contained in the container 100, the oxidation-reduction potential of the water W can be reduced.

FIG. 3 shows an embodiment of the water treatment apparatus according to the fifth aspect. In FIG. 3, reference numeral 30A denotes the first
Reference numerals 32A and 34A denote second and third flat metal plates, and reference numerals 41 and 43 denote substrates. They are,
As shown in the drawing, the first to third plate-like metals, which are constituent elements of the water treatment apparatus according to the eighth aspect, form one unit of a pair of substrates. That is, the first plate-shaped metal 30 </ b> A is
A second plate-shaped metal 32A is provided outside the substrate 41 so as to face the first plate-shaped metal 30A with the substrate 41 interposed therebetween. A third flat metal 34A is provided to face first flat metal 30A via substrate 43. The first to third plate-like metals 30A, 32A, 34A and the pair of substrates 41, 43 are held at appropriate intervals by spacers 31A, and the whole is composed of a bolt screw 35A and a nut screw 3A.
7A mutually fixed. The substrates 41 and 43 are bent in a “C” shape, and together with the third substrate 42,
Also, they are combined in a road shape. The substrates 41 and 42 sandwich the first flat metal 30B as a pair of substrates. Outside the substrates 41 and 42, the second and third flat metal members 32
B and 34B are provided, these are held at appropriate intervals by a spacer 31B, and are integrated by a bolt screw 35B and a nut screw 37B. The substrates 42 and 43 are 1
The first plate-shaped metal 30C is sandwiched between the pair of substrates.
Outside the substrates 42 and 43, the second and third flat metal members 32 are provided.
C and 34C are provided, these are held at appropriate intervals by a spacer 31C, and are integrated by a bolt screw 35C and a nut screw 37C. In other words, in the embodiment shown in FIG. 3, three "units" each composed of the first to third plate-like metals and a pair of substrates are radially combined at 120 degrees with each other, and are integrally formed. It is becoming. Spacers 31A, 31B, 31C, bolt screw 3
5A, 35B, 35C and nut screws 37A, 37B, 3
7C, together with the substrates 41, 42 and 43, constitutes "connection means" for fixing the whole. Note that reference numerals MA, MB, MC, and MD in FIG. 3 indicate ferrite magnets as magnet members.

[0020]

EXAMPLE The water treatment apparatus shown in FIG. 3 was constructed as follows.

The length of the substrates 41, 42 and 43 is 140
mm, a width: 60 mm, and a thickness: 1 mm were used, and these were bent in a "L" shape and combined as shown in the figure. As the first plate-like metals 30A, 30B, and 30C, a “zinc plate” having a length of 10 mm, a width of 60 mm, and a thickness of 3 mm was used. Second and third plate-like metals 32A, 32
B, 32C, 34A, 34B, 34C have the following lengths:
A “magnesium plate” having a size of 80 mm, a width of 40 mm, and a thickness of 3 mm was used. The magnesium plate is Al: 2.8
%, Zn: 0.87%, Mn: 0.41%, Cu, N
i: 0.001% is contained. Spacers 31A, 31
As B and 31C, aluminum spacers having a thickness of 3 mm were used. The bolt screws 35A, 35B, 35C and the nut screws 37A, 37B, 37C are made of iron. Ferrite magnets MA, MB, MC, MD have a magnetic flux density of 60
It was of 0 gauss and was magnetically attracted near the bent portion of the substrate. The water treatment device thus formed is immersed in 10 liters of tap water in a plastic container,
The oxidation-reduction potential and PH were measured over time. The results are listed. The measurement of the oxidation-reduction potential was performed using a commercially available ORP tester.

Time (hour) 0 1 2 3 4 5 6 Redox potential (mV) +560 -53 -141 -289 -365 -403 -438 PH 6.9 8.8 9.4 9.7 10.0 10.1 10.3

From this result, it can be seen that the oxidation-reduction potential in the water to be treated gradually decreases due to the action on the water treatment apparatus, and the water tends to be alkaline. The results of a similar experiment performed without using the ferrite magnets MA, MB, MC, MD are listed.

Time (hour) 0 1 2 3 4 5 6 Redox potential (mV) +560 -1 -98 -200 -298 -365 -394 PH 6.9 8.8 9.4 9.6 9.9 10.1 10.3

From this result, even without using a magnet member,
It can be seen that the oxidation-reduction potential of the water to be treated gradually decreases due to the action on the water treatment apparatus, and the water tends to be alkaline. However, it can be understood that the use of the magnet member "further reduces the oxidation-reduction potential". Of course, in each of the above experiments, the oxidation-reduction potential of water without immersing the water treatment apparatus,
H causes no substantial change. Water temperature was 2 throughout the experiment
4 degrees. After immersing the water treatment apparatus in the 10 liters of tap water for 40 hours, metals contained in the treated water were analyzed. The expression "becomes 100 or more in PPB units" is as follows. The numerical values are the values when the magnet member is used, and the values when the magnet member is not used are shown in parentheses. Al: 617 (996), Fe: 88.9 (124),
Mg: 285 (301) Zn: 142 (301), C
a: 261 (280).

From these results, it can be seen that the first to the first in the water treatment apparatus
It seems that the third plate-like metal dissolves in water in the form of ions and lowers the oxidation-reduction potential. The magnet member acts on the flow of ions by its electromagnetic force to agitate the water to be treated, thereby producing ions. It is speculated that it seems to promote elution. As described above, it is considered that the state where the oxidation-reduction potential is low is maintained for a long time because metal ions are present in the treated water. The change with time of the oxidation-reduction potential of "water treated so as to reduce the oxidation-reduction potential to -450 mV" by the above-mentioned water treatment apparatus is shown.

Temporal change 1: When treated water is sealed in a sealed container (made of plastic) Time 0 6 22 44 90 120 240 480 1440 (hour) Potential -450 -450 -448 -447 -445 -401 -320 -198 -120 (mV).

Temporal change 2: When treated water is placed in an open container (made of plastic) Time 0 6 22 44 90 120 240 480 1440 (hour) Potential -450 -435 -316 -49 +30 +89 +120 +150 +198 (mV).

The oxidation-reduction potential of ordinary tap water is +500 to
Considering that it is about +700, it is understood that the water treated by the water treatment apparatus of the present invention maintains the "low oxidation-reduction potential" for an extremely long time.

As a form of water treatment by the water treatment apparatus, "suspension removal" can be mentioned.

The rock was pulverized to 500 mesh to make a powder, and 300 g of the powder was suspended in 3 liters of tap water. Two groups of similar samples were prepared, and one group was immersed in the water treatment apparatus of the example. At 12 hours and 24 hours after immersion, the degree of suspension was measured by turbidimetry (OD-650). The results are as follows.

Time (time) 0 12 24 With water treatment: scattering amount 41.8 0.496 0.030 Without water treatment: scattering amount 41.6 4.892 1.059.

Thus, the water treatment by the water treatment apparatus of the present invention has an effect of removing the suspension.

The water treated in the water treatment apparatus of the above embodiment has a low oxidation-reduction potential, that is, a strong reducing power, and can be used for maintaining the freshness of plants.
For example, "cut flowers" will die in a few days if they are used in water and the water is not replaced, but if they are used in treated water, they will be fresh for several weeks without replacing the water. The state was maintained.

In the embodiment shown in FIGS. 2 and 3, between the flat metal (Mg, Zn) and the substrate (Ti), as described above,
Since they are connected via a conductive spacer, Mg and Ti, Ti and Zn are electrically connected, and Zn and Mg are electrically connected via water. Since the water to be treated generally contains some conductive substances, Mg-
Ti-Zn-Mg is considered to form a closed circuit via water, and it is considered that an electrochemical reaction is involved in the above treatment. Note that a weak voltage source of about several volts may be inserted into the closed circuit.

[0036]

As described above, according to the present invention, a completely novel water treatment method and apparatus can be realized. As described above, the present invention can maintain a state of low oxidation-reduction potential of treated water for a long period of time.

Further, since the water treatment method and apparatus of the present invention has a strong suspension removing effect, it is possible to purify the lake by immersing the water treatment apparatus in the lake.

The treated water is suitable for "preservation water" because the state of low oxidation-reduction potential is stable for a long period of time. When used for cultivation, it can be expected to promote the growth and sweetness of fruits such as tomatoes. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of the present invention.

FIG. 2 is a side view showing another embodiment of the present invention.

FIG. 3 is a plan view showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Plate-shaped metal 12 Plate-shaped metal 14 Partition board 16 End board 18 End board 11 Connecting means 13 Connecting means

Claims (8)

(57) [Claims] 1. A plurality of pairs of plate-like metals, each having a different kind of plate-like metal opposed to each other in parallel, are arranged in the thickness direction of the metal plate, and each plate-like metal pair is partitioned by a partition substrate. At the same time, end substrates are arranged at both ends of the array of the flat metal pairs, the flat metals on both sides of each partition substrate are held by the partition substrates, and the flat metals at both ends of the array are held by the end substrates, A water treatment device in which the whole is integrally connected by a connecting member. 2. A first plate-shaped metal, a pair of substrates provided so as to sandwich the first plate-shaped metal in a thickness direction thereof, and a substrate disposed outside one of the pair of substrates. A second plate-shaped metal provided so as to face the first plate-shaped metal via the first plate-shaped metal; and a second plate-shaped metal disposed outside the other of the pair of substrates via the substrate. A third plate-shaped metal disposed so as to face each other, and fixing means for fixing the first to third plate-shaped metals and a pair of substrates to each other; A water treatment apparatus, wherein two or more different types of metal plates are used among the first to third plate-shaped metals. 3. The water treatment apparatus according to claim 2, wherein the pair of substrates are formed of a metal different from the first to third plate-shaped metals. 4. The water treatment apparatus according to claim 3, wherein the second and third flat metals are the same kind of metal, and these are different kinds of metals from the first flat metal. And water treatment equipment. 5. A water treatment apparatus wherein the first to third plate-shaped metals according to claim 2 and a pair of substrates are used as a unit, and a plurality of units are integrated with each other by integrating means. 6. The water treatment apparatus according to claim 5, wherein the pair of substrates are formed of titanium, the first flat metal is formed of zinc, and the second and third flat metals are formed of magnesium. A water treatment apparatus, characterized in that: 7. The water treatment apparatus according to claim 1, further comprising a magnet member. 8. A water treatment method comprising immersing the water treatment apparatus according to any one of claims 1 to 7 in water to be treated to lower the oxidation-reduction potential.