JP2000202453A - Electrode for water purifying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inexpensively perform an efficient improvement in water quality by supporting charcoal in a receiving body having holes, through which the charcoal does not fall down, and wiring substantially charcoal in an electrode for water purifying device. SOLUTION: A metal made tray 1 as a receiving body is formed from a bottom plate and a peripheral wall in circular state, the bottom holes are perforated over the whole bottom plate and a terminal 11 is attached to a part of the peripheral wall. The charcoal 2 almost fixed in the length is housed in the tray 1 to form an electrode and the teeming 11 is wired from power source. A pair of 2 electrodes are used at the min. as the electrode, one of them uses a tank itself such as a septic tank and AC or DC current is passed between the electrodes as normal electrolysis. As a result, the contact area f the charcoal 2 with the water to be treated is enlarged by wetting the charcoal 2 with the water to e treated In the tank such as the septic tank to improve the electric conductivity and the efficient improvement of water quality is inexpensively performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrode for a water purification apparatus, which uses, as an electrode, charcoal having porosity and a large contact area with water to be treated.

[0002]

2. Description of the Related Art Water resources can be raised as one of the most important resources in our lives. Water resources are widely used as drinking water, industrial water, agricultural water and the like. As for the drinking water, a water purifier for removing harmful substances such as trihalomethane and chlorine odor from tap water is preferably used. Some of them add minerals eluted from charcoal and various ores to purified water. Also, with regard to the above-mentioned industrial water, it is necessary to kill bacteria, microorganisms and protozoa contained in the water, and various purification devices have been used. The same applies to pool water and fish culture water.

[0003]

In these water purifiers, chemicals have been introduced for improving water quality, but there has been a problem that operation costs are high. It is also desirable to remove metal components contained in industrial wastewater and the like. In view of this, the present invention focuses on a water purification device that performs electrochemical water treatment, and by providing a novel electrode for the most important electrode in this device,
Water quality can be improved with low cost and high efficiency.

[0004]

SUMMARY OF THE INVENTION The first aspect of the present invention is an electrode for a water purification apparatus, wherein a charcoal is supported by a receiver having a hole in which the charcoal does not spill and is substantially wired to the charcoal. .

Since this electrode is immersed in the water to be treated,
Even if the charcoal is infiltrated by the water to be treated and wired directly to the charcoal, or wired to a receiver that contacts the charcoal,
This results in an electrode having a large surface area, that is, a contact area, which is substantially wired to charcoal. Therefore, by using this electrode as an electrode for a water purification device, efficient electrochemical water treatment can be performed at low cost. As will be described later, since the charcoal must be used as an electrode, the receiving body may have to be perforated in some cases. That is, the charcoal as the opposite electrode must be conducted in the water to be treated. Charcoal may be consumed or stained as an electrode, but even in such a case, the receiver has the advantage that the charcoal can be easily replaced.

As a water purification device, a pair of electrodes is provided in a water purification tank to apply an alternating current, and a third electrode is provided and grounded to connect the pair of electrodes and the third electrode. There is a method in which a DC voltage is generated in the water to be treated to electrolyze the water to be treated to lower the oxidation-reduction potential of the water to be treated, and a method in which the third electrode is set in a water purification tank. Also, 1
A pair of electrodes and a direct current is applied. A third electrode is further provided and a direct current is applied to a pair of electrodes to polarize the third electrode, and subject the third electrode to water to be treated to perform electrolytic treatment. There are also things. In some cases, a filtration treatment device for removing chlorine is provided at a stage preceding these electrolytic treatment devices. In any case, the electrode of the present invention can be used as an electrode for such a water purification device. Furthermore, it can also be used as a battery electrode.

According to a second aspect of the present invention, in the first aspect, the charcoal is charcoal. During electrochemical water treatment, large amounts of minerals are eluted from charcoal. Therefore, when this electrode is used especially for a water purifier for drinking water or cooking water, the water can be made delicious together with the water purifying action. In addition, an odor removing effect is also produced.

According to a third aspect of the present invention, in the first aspect, the charcoal is bamboo charcoal. Although bamboo charcoal has become a boom in recent years, it has very good conductivity. Also, a large amount of minerals are eluted from bamboo charcoal during electrochemical water treatment. Therefore, when this electrode is used particularly for a water purifier for drinking water or cooking water, the water can be made delicious together with the water purifying action. Further, as in the second aspect of the present invention, an odor removing effect is also produced.

According to a fourth aspect of the present invention, in the first aspect, the charcoal is activated carbon. The holes in the receiver must be so large that the granular activated carbon does not spill. Activated carbon can be used as its raw material, such as crushed coal or crushed coconut shell, both of which have the advantage of relatively low cost.

According to a fifth aspect of the present invention, in the first aspect, the receiving body is configured to place charcoal. Therefore,
Since the receiver is placed flat and only charcoal is placed on it, it is easy to replace charcoal. It is also possible to use amorphous charcoal.

According to a sixth aspect of the present invention, in the first aspect, the receiving body includes charcoal. The receiver does not contain charcoal and does not spill. Therefore, the installation of the electrodes is easy. When replacing charcoal, open the container as a container. Further, similarly to the invention of claim 5, amorphous charcoal can be used.

According to a seventh aspect of the present invention, in the first aspect, the receiving body is formed by forming a hole in a thin plate. Since the receiving body supports the charcoal and the charcoal must be used as an electrode, the hole is formed in the receiving body so that the charcoal does not spill. Therefore, each charcoal as an electrode can be conducted to another charcoal. Since the shape of this hole is arbitrary, for example, an infinite number of round holes may be formed on the entire surface of the receiving body, a plurality of slits may be formed on the receiving body, or one slit may be formed on the entire surface of the receiving body. It may be formed so as to crawl. Alternatively, the receiving body may be constituted by a net, as described below.

According to an eighth aspect of the present invention, in the first aspect, the receiving body comprises a net. Since the receiving body supports the charcoal and uses the charcoal as an electrode, the receiving body itself may be a net having an eye of such a size that the charcoal does not spill.

According to a ninth aspect of the present invention, in the first aspect, the wiring is provided on charcoal. That is, the power supply line is directly connected to the charcoal. This makes the charcoal itself an electrode.

According to a tenth aspect of the present invention, in the first aspect, the receiving body is made of a conductive material and is wired to the receiving body. In other words, the power supply line is wired to a conductive receiver, but when this electrode is immersed in the water to be treated, the charcoal contains the water to be treated, and the charcoal is in contact with the receiver. As a result, the charcoal itself becomes the electrode. This charcoal is infiltrated by the water to be treated and forms an electrode having a large surface area, that is, a contact area with the water to be treated.

According to the ninth aspect of the present invention, the wiring to the electrode of the present invention is applied to the contact member with the charcoal, and the tenth aspect of the present invention.
According to the invention, a metal material such as magnesium, titanium, or zinc can be arbitrarily used for the contact member with the conductive receiver.

According to an eleventh aspect of the present invention, in the first aspect, the antibacterial metal is supported by a receiving body together with the charcoal.
Antibacterial metals are silver Au, copper Cu,
Metals such as zinc and Zn. Therefore, when no current is applied to this electrode, silver Au, copper Cu, zinc Zn
The antibacterial and bactericidal effects of antibacterial metals such as can be utilized.

According to a twelfth aspect of the present invention, there is provided an electrode formed by cutting out a bamboo charcoal, inserting a conductive metal into the bamboo charcoal, and wiring the conductive metal. Bamboo charcoal has a large actual surface area and good conductivity. In addition, a conductive metal can be inserted into the central part of the bamboo charcoal that has been hollowed out and fixed. Therefore, wiring to a conductive metal provides a simple and effective electrode for a water purification device.

According to a thirteenth aspect of the present invention, a conductive metal is attached to bamboo charcoal and wired to the conductive metal.
After all, bamboo charcoal has a large actual surface area and good conductivity,
It can be used as a simple and effective electrode for water purification equipment.

In addition, in the present invention, so-called mineral stones such as coral powder, tourmaline and barley stone may be mixed into the charcoal. They are also known to emit far-infrared rays. Accordingly, such an electrode for a water purification device is particularly suitable as an electrode of a mineral reductor for drinking water and cooking water. Further, the electrode of the present invention can be used as a battery electrode and the like.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments of the present invention will be described below with reference to the drawings. However, the present invention is not limited to these embodiments, and various design changes are made. I can do it.

First Embodiment FIGS. 1 and 2 show a first embodiment of the present invention. The metal saucer 1 has a circular shape in plan view including a bottom plate and a peripheral wall, a bottom hole 10 is formed in the entire surface of the bottom plate, and a terminal 11 is attached to a part of the peripheral wall.
The electrode is a charcoal 2 having a certain length in the saucer 1. The terminal 11 is connected to a wire from a power supply. This electrode is used by being put in a container such as a septic tank, and the charcoal 2 becomes a high quality electrode including the water to be treated. This electrode is used as a pair of at least two electrodes.
One is to use a container itself such as a septic tank. DC or AC is applied between the electrodes as in a conventional electrolytic treatment. In some cases, three-phase alternating current may be applied to a pair of three electrodes. Similarly to the above, one of them may use a container itself such as a septic tank.

The feature of this embodiment is that even a charcoal having an irregular thickness can be accommodated in the saucer 1. In addition, since the charcoal 2 is infiltrated by the water to be treated in a container such as a septic tank, which is an effect of the present invention, the electrode has a large surface area, that is, a contact area with the water to be treated, and has good conductivity. By using this electrode as an electrode for a water purification device, there is a feature that efficient water quality improvement can be performed at low cost. Further, minerals are eluted from the charcoal 2, and the charcoal 2 also has an effect of adsorbing offensive odor. The bottom hole 10 allows the water to be treated to flow through this electrode. For this reason, as shown in FIG. 2, the vascular bundle of the charcoal 2 is adapted to the flow direction of the water to be treated. In addition, when the electrode is pulled out of the water to be treated, the charcoal 2 is drained well. The fact that the mineral is eluted from the charcoal 2 indicates that the electrode of this embodiment is convenient to use as an electrode of a mineral reduction water device for drinking water or cooking water. .

Second Embodiment Next, FIG. 3 shows a second embodiment of the present invention. Planar view rectangular shape (not shown) by wooden frame 12
Is formed, and a bottom portion is formed by stretching a metal bottom net 13. Terminals 14 are attached to the bottom net 13, and a wooden frame 12 is formed.
The terminal 14 is connected to a wire from a power supply. The metal bottom net 13 is a so-called wire net.

According to this embodiment, the flow of the water to be treated in this electrode is made extremely good by the bottom net 13. In addition, in the present embodiment, the receiving tray formed of the wooden frame 12 and the bottom net 13 has a rectangular shape in a plan view, but as described above, the receiving tray of the present invention or a receiving tray such as a container described later is used. The shape of the body is arbitrary. In addition, the tray is usually placed flat, but with a lid, the posture at the time of placing is not limited to the flat placement. A saucer with a lid can be considered a container.

Third Embodiment FIG. 4 shows a fourth embodiment of the present invention. The mesh plate 15 has a circumferential wall (not shown), a bottom portion, and a top portion made of a fine metal wire having a fine grain of wood, and further has a top portion. It is formed by filling granular activated carbon 20. Further, a power supply terminal 14 is attached to the bottom of the mesh plate 15. The granular activated carbon 20 contains tourmaline grains 3.

The feature of this embodiment is that the granular activated carbon 20 is placed in the mesh dish 15 through which the water to be treated flows well. It is very convenient as an electrode to be placed in the water to be treated. Granular activated carbon 20 is known to have a strong adsorption effect. Also, tourmaline is known to emit far-infrared rays on the tourmaline grains 3 like coral powder or barley stone. Therefore, it is suitable for an electrode of a mineral reduction water device for drinking water or cooking water.

Fourth Embodiment Next, FIG. 5 shows a fourth embodiment of the present invention. The configuration of this embodiment is almost the same as the electrode of the above-described fourth embodiment,
A difference can be found in that the silver foil 5 is mixed into the granular activated carbon 20 instead of the above.

The silver foil 5 is known as a metal having antibacterial properties, like the transition metal elements copper and zinc. That is, in this embodiment, the antibacterial property of the silver foil 5 can be used. The silver foil 5 is present in the granular activated carbon 20 and exhibits conductivity.

Fifth Embodiment Next, FIG. 6 shows a charcoal 2 according to a fifth embodiment of the present invention. The charcoal 2 is placed in a saucer having the same configuration as the saucer 1 of the first embodiment described above, and a metal cap 16 is placed on one end of the charcoal 2 and caulked, and the charcoal 2 and the charcoal 2 are joined together. And is wired from the terminal 17 of the metal cap 16 to the terminal 11 of the saucer 1.

With this configuration, it is possible to reliably supply power to all the charcoals 2 in the saucer 1. Here, saucer 1
Although it is an electrode, it has a strong role as a container for supporting the charcoal 2.

Sixth Embodiment Next, FIGS. 7 and 8 show a sixth embodiment of the present invention. This embodiment is different from the saucer described above in that it contains charcoal. On the peripheral wall of the cylindrical synthetic resin container 4, an elongated notch 40 was opened horizontally so that a non-notch 41 was present between adjacent notches 40, and terminals 43 were attached to the upper wall and the lower wall. The metal cap 42 is fitted and the synthetic resin container 4
The bamboo charcoal 21 shown in FIG. The bamboo charcoal 21 may be one that is divided in half in the vertical direction as indicated by a chain line, one that is divided into four, or the like. In any case, even irregular shaped bamboo charcoal with different length and thickness,
The synthetic resin container 4 of this embodiment can be freely packed. Metal caps 4 for the upper and lower walls
The two are electrically connected. For this purpose, wiring is performed between the metal caps 42, a conductive metal bar is passed between the metal caps 42, and the bamboo charcoal 21 is brought into contact with the metal cap 42 on the upper wall when the bamboo charcoal 21 is placed.

Although the synthetic resin container 4 itself has no conductivity, when the synthetic resin container 4 is placed in the water to be treated, the bamboo charcoal 21 is immersed in the water to be treated, and the bamboo charcoal 21 itself becomes an electrode. At least two electrodes are used as a pair, and one of them may use a container itself such as a septic tank. DC or AC is applied between the electrodes as in a conventional electrolytic treatment. In some cases, three electrodes are paired to apply a three-phase alternating current. Similarly to the above, one of them may use a container itself such as a septic tank. This electrode is mainly used for a septic tank, but particularly when used for a water purifier for drinking water or cooking water, a large amount of minerals are eluted from the bamboo charcoal 21 so that the water can be tasted with a water purifying action. The bamboo charcoal 21 has an odor removing effect. The bamboo charcoal 21 may be mixed with so-called mineral stones such as coral powder, tourmaline and barley stone.

Seventh Embodiment Next, FIGS. 9 and 10 show a seventh embodiment of the present invention. A titanium terminal 60 is provided at the center of the top of the cylindrical stainless steel cage 6, and bamboo charcoal 21 is placed in the stainless steel cage 6.

The stainless basket 6 has a relatively coarse mesh so that the bamboo charcoal 21 inside can be seen from the outside through the mesh. For this reason, it is possible to show the user how the interior is made or to appeal that the bamboo charcoal 21 is used as charcoal. During use as an electrode, the state of the bamboo charcoal 21 such as the degree of consumption can be checked. FIG. 10 schematically shows a mode of use of this electrode. The stainless steel electrolytic cell 7 contains non-treated water, and this electrode is immersed in this. The terminal 70 is drawn out of the electrolytic cell 7 by being wired from the titanium terminal 60. In this usage mode, two electrodes are arranged in the electrolytic cell 7, and a three-phase alternating current is applied between the two electrodes and the electrolytic cell 7. Therefore, a terminal 70 was also provided on the electrolytic cell 7 side.

Eighth Embodiment Next, FIG. 11 shows an eighth embodiment of the present invention. In this embodiment, the knot of the bamboo charcoal 21 is cut out, and the coil spring 8 as a conductive metal is inserted into the bamboo charcoal 21. A terminal 80 was provided on the coil spring 8. It is more preferable to remove the nodes of the bamboo charcoal 21 before bamboo charcoal processing.

The coil spring 8 can absorb a certain difference in the diameter of the bamboo charcoal 21 and makes firm contact with the inner wall of the bamboo charcoal 21. The coil spring 8 is connected to its terminal 8
0 is connected to the power supply. In this way, the bamboo charcoal 21 itself becomes a simple and effective electrode for a water purification device. In particular, when used in a water purifier for drinking water or cooking water, the water can be made delicious by a large amount of minerals eluted from the bamboo charcoal 21.

Ninth Embodiment Next, FIG. 12 shows a ninth embodiment of the present invention. A metal curved plate 9 is attached to a three-fold symmetrical position on the inner wall of a synthetic resin tube 71 through which water to be treated passes, and a divided bamboo charcoal 22 is attached to the curved plate 9. ing. The terminal 90 is drawn out of the tube 71 from the metal curved plate 9. The water to be treated is passed through the tube 71, and a three-phase alternating current is applied to the terminal 90 for use.

In this embodiment, the tube 71 for conveying the water to be treated serves as a purification tank as it is. The water to be treated is treated while passing through the tube 71. In addition, this device can be used as a conduit for conveying the water to be treated to another water purification device, and can be used as a water purification device for pre-treating another water purification device.

[0040]

As described above, the present invention relates to an electrode for a water purification apparatus in which charcoal is supported by a receiver having a hole in which charcoal does not spill, and this electrode is immersed in the water to be treated. Therefore, the charcoal is infiltrated by the water to be treated, the surface area, that is, the contact area with the water to be treated is large, and an electrode having good conductivity is obtained. Therefore, by using this electrode as an electrode for a water purification device, there is an effect that efficient water quality improvement can be performed at low cost. In addition, the present invention is an electrode for a water purification device in which a conductive metal is attached to bamboo charcoal and wired to the conductive metal. The electrode has a large actual surface area and good conductivity. Therefore, there is an effect that efficient water quality improvement can be performed at low cost.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment.

FIG. 2 is a cross-sectional view of the first embodiment.

FIG. 3 is a cross-sectional view of the second embodiment.

FIG. 4 is a cross-sectional view of a third embodiment.

FIG. 5 is a cross-sectional view of a fourth embodiment.

FIG. 6 is a perspective view of a charcoal 2 according to a fifth embodiment.

FIG. 7 is a perspective view of a sixth embodiment.

FIG. 8 is a perspective view of bamboo charcoal 21 according to a sixth embodiment.

FIG. 9 is a perspective view of a seventh embodiment.

FIG. 10 is a diagram illustrating a use state of the seventh embodiment.

FIG. 11 is a perspective view of an eighth embodiment.

FIG. 12 is a schematic view of a ninth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Receiving tray 10 Bottom hole 11 Terminal 12 Wooden frame 13 Bottom net 14 Terminal 15 Mesh dish 16 Metal cap 17 Terminal 2 Charcoal 20 Granular activated carbon 21 Bamboo charcoal 22 Bamboo charcoal 3 Tourmaline grain 4 Synthetic resin container 40 Notch 41 Non-notch 42 Metal cap 43 Terminal 5 Silver foil 6 Stainless steel cage 60 Titanium terminal 7 Electrolyzer 70 Terminal 71 Tube 8 Coil spring 80 Terminal 9 Curved plate 90 Terminal

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C02F 1/50 550 C02F 1/50 550B 560 560F 1/68 510 1/68 510A 520 520B 530 530B 540 540E C25B 1/04 C25B 1/04

Claims (13)

[Claims] 1. An electrode for a water purification apparatus, wherein a charcoal is supported by a receiver having a hole in which the charcoal does not spill, and is substantially wired to the charcoal. 2. The electrode according to claim 1, wherein the charcoal is charcoal. 3. The electrode according to claim 1, wherein the charcoal is bamboo charcoal. 4. The electrode according to claim 1, wherein the charcoal is activated carbon. 5. The receiving body is configured to place charcoal,
The electrode for a water purification device according to claim 1. 6. The receiving body is configured to contain charcoal,
The electrode for a water purification device according to claim 1. 7. The receiving body is formed by making a hole in a thin plate.
The electrode for a water purification device according to claim 1. 8. The electrode for a water purification apparatus according to claim 1, wherein the receiving body comprises a net. 9. The electrode for a water purification apparatus according to claim 1, wherein the electrode is formed by wiring with charcoal. 10. The electrode for a water purification apparatus according to claim 1, wherein the receiving member is made of a conductive material and is wired to the receiving member. 11. The electrode according to claim 1, wherein the antibacterial metal is supported by a receiver together with the charcoal. 12. An electrode for a water purification device, wherein a node of a bamboo charcoal is cut out, a conductive metal is inserted into the bamboo charcoal, and the conductive metal is wired. 13. An electrode for a water purification device, wherein a conductive metal is attached to bamboo charcoal and wired to the conductive metal.