JPH10272472A - Water cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To hold environment enabling to allow living things such as fishes and shellfishes to live for a long period by installing an electrode for electrolyzing water to flowing water in a device, removing a bubble-like gas produced through electrolyzing from the water, and dissipating it into the air and then feeding back the water to the water tank. SOLUTION: An electrode 2 for water electrolysis is installed in an outer cylinder 3 in a water tank 1 and when an electric current flows between the electrodes, water is electrolyzed and gaseous oxygen generates at an anode side to generate acidic water, while gaseous hydrogen generates at a cathode side to generate alkaline ionic water. Also when chlorine is contained in the water, chlorine is generated from the anode side. An insoluble portion of these gases becomes buibbles, which floats in the water and enters a filter 8 via a pipe 4, a pump 5 and a pipe 6. When passing through filter media 9 in the filter 8, these gases are once dissipated from a gas dissipation port 10 and then charged into the filter 8. The water moved floating matters through the filter 8 is returned to the water tank 1 through a pipe 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for purifying water in an aquarium, a pond or a lake. The present invention relates to an apparatus for electrolyzing water to generate oxygen gas, thereby increasing the amount of dissolved oxygen in the water and, at the same time, inhabiting fish and shellfish. The present invention relates to a water purification device that sterilizes and deodorizes water while maintaining conditions.

[0002]

2. Description of the Related Art Conventionally, as a method for purifying water in an aquarium or pond, a method of blowing air into water or filtering water through a filtration layer filled with fibers, pebbles, sand, and the like has been used. However, it is not sufficient for sterilization and deodorization operations. For example, in an ornamental fish breeding aquarium, a circulating water purification device that sucks up water and returns it to the aquarium again through a filter, and an air blowing device that replenishes oxygen into the water are provided, complicating the aquarium and complicating breeding management. But
Even if it does in this way, it cannot prevent dirt of a water tank, propagation of microorganisms in a water tank, and odor. Furthermore, water purification treatments such as sterilization and deodorization using ozone have been attempted, but a technique that can sufficiently achieve the purpose has not been put to practical use.

[0003] In addition, although sterilization and deodorization can be carried out by using electrolysis of water, no technique has been developed which can maintain an environment in which living organisms, particularly fish and shellfish, can live in the treated water for a long time. The present invention uses water electrolysis to purify water,
An object of the present invention is to provide a water purification device having a simple structure for maintaining an environment in which organisms such as fish and shellfish can live for a long time.

[0004]

Means for Solving the Problems The present inventor has investigated the reason why organisms such as fish and shellfish cannot inhabit for a long period of time in the methods of sterilization and deodorization using the electrolysis of water which have been conventionally attempted. Found that when a large amount of hydrogen gas generated during electrolysis of water was present in the water in the water tank, this inhibited the growth of living organisms. Thus, the present invention was completed by considering the idea of separating the bubble-like gas containing hydrogen gas from the water tank, releasing the gas into the air, and then returning the gas to the water tank.

That is, the present invention relates to a water purification apparatus for pumping water in a water tank by a pump, sending the water to a filter, and returning the water passed through the filter to the water tank again. And a water purifying apparatus, wherein a bubble-like gas generated by electrolysis is removed from water, radiated into the atmosphere, and then returned to a water tank.
Further, the present invention provides an electrode for water electrolysis installed in a water tank, a device for collecting water containing bubble-like gas generated by electrolysis and sending it to a filter by a pump, a filter having a gas discharge port, and A pipe for returning the water filtered by the filter to the water tank. The present invention also provides a device for pumping water in a water tank with a pump, an electrode for water electrolysis installed in the pumped water, and a gas vent for filtering water electrolyzed by the electrode for water electrolysis. A water purification device comprising: a filter having the filter; and a pipe for returning water filtered by the filter to a water tank.

The present invention also provides a device for pumping water in a water tank by a pump, a filter for filtering the pumped water, an electrode for water electrolysis installed in the water discharged from the filter, and a device for water electrolysis. A water purifier comprising: a filter having a gas outlet for filtering water electrolyzed by an electrode; and a pipe returning water filtered by the filter to a water tank.
Further, the present invention is an apparatus for pumping water in a water tank with a pump,
A filter for filtering part of the pumped water, a water electrolysis electrode for electrolyzing other water, and a filter for filtering water electrolyzed by the water electrolysis electrode. A water purification device comprising: a device provided with a gas outlet, and a pipe for returning water discharged from the device to a water tank.

The present invention also provides a water electrolysis electrode as described above, wherein a conductive material having a large number of through holes is laminated on both sides of a sheet-shaped non-conductive material having a large number of through holes, In addition, a composite electrode having a hole passing through the sheet-shaped non-conductive material and each conductive material is used. Further, the present invention uses, as the above-mentioned electrode for water electrolysis, a composite electrode in which a non-conductive material and a conductive material are sequentially laminated on both surfaces of a diaphragm, and which has a hole penetrating the non-conductive material and the conductive material. Is what you do.

[0008]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in more detail. FIG. 1 shows an example of the water purification apparatus according to the second aspect of the present invention when the electrode for water electrolysis is installed in an aquarium for breeding ornamental fish. In FIG. 1, reference numeral 1 denotes a water tank.
Reference numeral 2 denotes a water electrolysis electrode provided in a water tank. Reference numeral 3 denotes an outer cylinder that covers the water electrolysis electrode 2, one end of which is open in a water tank, and the other end of which is connected to a pump 5 via a pipe 4. The pump 5 is a water absorption pump of a type in which a propeller is rotated by a motor M. Reference numeral 6 denotes a pipe connecting the pump and the filter. 8 is a filter. 9 is a filter material, 10 is a gas vent provided in the filter 8, and 11 is a pipe connecting the filter 8 and the water tank 1. By operating the motor M, the pump 5 is operated, and water in the water tank 1 is sucked up from the open end of the outer cylinder 3. The sucked water is sent to the filter 8 via the pipe 4, the pump 5 and the pipe 6, where it is filtered and returned to the water tank 1 through the pipe 11.

In the example shown in FIG. 1, an electrode 2 for water electrolysis is installed in an outer cylinder 3. This electrode for water electrolysis is obtained by arranging two electrode plates in parallel, and one of the electrodes is used as an anode and the other electrode is used as a cathode, and a current flows between the electrodes. Water is electrolyzed and oxygen gas is generated on the anode side,
This produces acidic ionic water. On the cathode side, hydrogen gas is generated to generate alkaline ionized water. When water contains chlorine, chlorine gas is generated on the anode side. Gases (oxygen, hydrogen, chlorine) generated by the electrolysis dissolve in water according to the solubility of each gas, but undissolved portions become air bubbles and float in the water. Oxygen, acidic water, chlorine gas, and hypochlorite ions generated during the electrolysis reaction have a sterilizing effect, so that they reduce the number of microorganisms and thus have a deodorizing effect. The end of the outer cylinder 3 is connected to a pipe 4, and the pipe 4 is connected to a pump 5, so that the electrolyzed water, oxygen gas, hydrogen gas, and chlorine gas come together to form the pipe 4, pump 5, It enters the filter 8 via the pipe 6.

When bubbles in the water float in the filter 8 or when the water passes through the filter medium 9, bubbles such as oxygen gas, hydrogen gas, chlorine gas, etc. Are aggregated to form large air bubbles, float up and diffuse into the atmosphere, and are removed from the water. The gas separated from the water is released from the gas outlet 10 to the atmosphere. When the water is injected into the filter 8 from the outlet 7 of the pipe 6, it is preferable that the water is first released into the atmosphere and then put into the filter 8. In this way, even during the above-mentioned release, gas such as oxygen gas, hydrogen gas, and chlorine gas mixed in water can be removed. The water from which suspended matter has been removed by the filter 8 is returned to the water tank 1 through the pipe 11.
That is, the water in the aquarium is electrolyzed, sterilized, deodorized,
Further, mixed gas bubbles and suspended matter are removed and returned to the water tank.

In the above example, the shape of the outer cylinder 3 covering the electrode for water electrolysis may be arbitrary, and is, for example, cylindrical or bell-shaped. Also, any type of pump 5 can be used,
For example, it is an impeller type, a propeller type, or an air pump.
In some cases, multiple pumps may be used. Further, as the filter medium 9 used in the present invention, glass wool, sand, gravel, barley stone, anthracite, activated carbon, and the like may be used in combination. Further, when activated carbon, activated alumina, molecular sheep, calcium carbonate, or the like is used as a filtering material, chlorine gas present in water can be absorbed and removed.

Various types of water electrolysis electrodes 2 can be used in the present invention. Basically, two electrode plates are arranged in parallel, with one electrode plate serving as an anode and the other electrode plate serving as a cathode. It is also possible to use three or more electrode plates and alternately arrange cathode plates and anode plates in parallel. In ordinary water electrolysis, a diaphragm is installed between the electrode plates. In the present invention, as described above, oxygen gas and acidic ion water generated on the anode side, hydrogen gas generated on the cathode side, and alkaline ion water are separated. There is no need to do so, so the diaphragm may or may not be present.

Further, as the electrode 2 for water electrolysis, the negative electrode and the positive electrode do not face each other, each electrode faces outside, that is, the back side, and the facing side is made of a non-conductive material. An electrode for water electrolysis may be used in which an electrolysis reaction is caused on the back electrode surface by generating a configuration in which a diaphragm is disposed on the rear surface so that ions and gas can be generated. This electrode is a composite electrode in which a non-conductive material and a conductive material are sequentially laminated on both surfaces of a diaphragm, and a hole penetrating the non-conductive material and the conductive material is provided. For example, the front side is a surface made of a conductive material such as a metallic material, and the back side is a surface made of a non-conductive material such as a plastic. An electrode for water electrolysis (Japanese Patent Application No. 8-10737) in which material surfaces are arranged facing each other and a diaphragm is arranged in the middle thereof, and a sheet-like non-conductive material having a large number of through holes A composite electrode for water electrolysis (Japanese Patent Application No. Hei 8 (1996)) which is formed by laminating a conductive material having a large number of through-holes on both surfaces thereof and has a hole passing through the sheet-like non-conductive material and each conductive material. -207146),
Furthermore, a non-conductive coating layer having a blank pattern and a continuous pattern is provided on one or both sides of the sheet-like diaphragm, and a composite electrode for water electrolysis (in particular, a conductive layer is formed on the surface of the coating layer). Nippon 9
-6322) may be used.

FIG. 2 shows another example of the water purification apparatus of the present invention. This example is an example of the invention according to claim 3 in which the electrode for water electrolysis is installed in water pumped from a water tank. In FIG. 2, 21 is a water tank, 22 is a water absorption pipe, 23 is a water absorption pump, 24 is a pump 23 and a water storage tank 26.
Is a pipe that connects In the upper part of the water tank 26, there is a water outlet 2
8 is provided, and a gas discharge port 29 is provided on the upper portion. Reference numeral 30 denotes a filter. 31 is a filter material, 32 is a gas vent provided in the filter 30, and 33 is the filter 30 and the water tank 2.
It is a pipe connecting 1. As the electrode for water electrolysis, the pump, and the filtering material, those described above are used. By operating the motor M of the pump 23, the water in the water tank 21 is removed from the water suction pipe 2.
2 and is pumped through a pipe 24 into a reservoir 26 through a discharge port 25. The water in the water tank 26 drops from the upper outlet 28 into the filter 30, is filtered by the filter material 31, and returns to the water tank 21 via the pipe 33.

In the example shown in FIG. 2, an electrode 27 for water electrolysis is installed in a water tank 26. This electrode for water electrolysis is obtained by arranging two electrode plates in parallel, and one of the electrodes is used as an anode and the other electrode is used as a cathode, and a current flows between the electrodes. Water in the water tank is electrolyzed, and oxygen gas is generated on the anode side to generate acidic ionized water. On the cathode side, hydrogen gas is generated to generate alkaline ionized water.
When water contains chlorine, chlorine gas is generated on the anode side. Oxygen, acidic water, chlorine gas, and hypochlorite ions generated during the electrolysis reaction have a sterilizing effect, so that they reduce the number of microorganisms and thus have a deodorizing effect.
Among the generated oxygen gas, hydrogen gas, and chlorine gas, gases which do not dissolve in water but exist in a bubble form emanate from the water surface, and these gases are emitted from the gas emission port 29 to the atmosphere.

The electrolyzed water enters the filter 30 through the outlet 28 at the top of the water tank. And the filter 30
Bubbly gas floats in the water, and water is
When passing through 1, oxygen gas bubbles remaining in the water,
Gases such as hydrogen gas and chlorine gas are aggregated to form large air bubbles, float up and diffuse to the atmosphere, and are removed from the water.
At this time, the gas emanating from the water passes through the gas outlet 32 of the filter 30 and is released to the atmosphere from the gas outlet 29 at the upper part of the reservoir. Then, the water from which the suspended matter has been removed by the filter medium 31 of the filter 30 is returned to the water tank 21 through the pipe 33. That is, the water in the water tank is electrolyzed, sterilized and deodorized, mixed gas and suspended matter are removed, and returned to the water tank.

FIG. 3 shows another embodiment of the present invention in which an electrode for water electrolysis is installed in a water tank, in which a composite electrode is used and an air pump is used. 41 is a water tank. 4
Reference numeral 2 denotes a water electrolysis electrode provided in a water tank. An outer cylinder 43 covers the electrode 42 for water electrolysis, and its peripheral side surface is formed of a frame or a plate provided with a number of holes, so that water can easily pass therethrough. I have. 44 is a filter material, which may or may not be present. 4
6 is a filter, and 45 is a pipe connecting the outer cylinder 43 and the filter 46. 47 is a filter provided on the filter 46;
Is a gas vent provided above the filter, 49 is the filter 46
And a water tank 41. The air pump is operated to send air from the air pipe 50 into the outer cylinder in the water tank. As a result, the water and the air in the water electrolysis electrode 42 are mixed, the apparent specific gravity of the water is reduced, and buoyancy is generated, and the water in the outer cylinder 43 is pushed out to the filter 46 through the pipe 45. At this time, surrounding water is sucked into the outer cylinder 43. Filter 46
The water filtered in is returned to the water tank 41 through the pipe 49.

The water electrolysis electrode 42 in this example is a composite electrode. In this composite electrode, a non-conductive polyethylene film having a thickness of 0.1 mm is laminated on the opposite surface of a titanium plate having a thickness of 20 μm and one surface of which is plated with platinum. Is uniformly pierced so that is equal to 7 mm.
%. The two electrode plates were placed so that the polyethylene film surfaces face each other, brought into close contact with each other, and wound into a cylindrical shape. This electrode area is 100 cm ² . One electrode plate such as an outer electrode plate is used as an anode, and the other electrode plate such as an inner electrode plate is used as a cathode.
A current of 0 mA flows. Water is electrolyzed, and oxygen gas is generated on the anode side to generate acidic ionized water. On the cathode side, hydrogen gas is generated to generate alkaline ionized water.
When water contains chlorine, chlorine gas is generated on the anode side.

The gas (oxygen, hydrogen, chlorine) generated by the above-mentioned electrolysis is dissolved in water according to the solubility of each gas, but the undissolved portion floats in the water as bubbles, and the air pipe It floats with the air blown from 50. Oxygen, acidic water, chlorine gas, and hypochlorite ions generated during the electrolysis reaction have a sterilizing effect, so that they reduce the number of microorganisms and thus have a deodorizing effect. Since the upper end of the outer cylinder 43 is connected to the filter 46 via the pipe 45, the electrolyzed water, oxygen gas, hydrogen gas,
The chlorine gas together with the gas enters the filter 46 via the pipe 45. Then, in the filter 46, air such as air in the water and bubbles such as oxygen gas, hydrogen gas, and chlorine gas float, and further, when water passes through the filter material 47, bubble bubbles mixed therein. The gases collect to form large air bubbles, float and escape into the atmosphere, and are removed from the water. The gas separated from the water is released from the gas outlet 48 into the atmosphere.

Further, when the above-mentioned water is injected into the filter 46 from the outlet of the pipe 45, it is preferable that the water is once released into the atmosphere and then put into the filter 46. In this way, even during the above-mentioned release, gas such as oxygen gas, hydrogen gas, and chlorine gas mixed in water can be removed. The water from which the suspended matter has been removed by the filter 46 is returned to the water tank 41 through the pipe 49. That is, the water in the water tank is electrolyzed, sterilized and deodorized, and the mixed gas bubbles and suspended matter are removed and returned to the water tank. Instead of the composite electrode, a composite electrode in which a non-conductive material and a conductive material are sequentially laminated on both surfaces of the diaphragm and which has a hole penetrating the non-conductive material and the conductive material can be used.

The example of the water purification apparatus shown in FIG. 4 is a modification of the example of the apparatus shown in FIG. In FIG. 4, 51 is a water tank, 52 is a water absorption pipe, 53 is a water absorption pump, and 54 is a pipe connecting the pump 53 and the filter 56. A water outlet 55 is provided at an upper portion of the filter 56. 56 is a filter, and 57 is a filter material. 58 is a waterway. 60 is an electrode for water electrolysis, 61 is a filter,
62 is a gas outlet, and 64 is a pipe connecting the filter 61 and the water tank 51. The water electrolysis electrodes, pumps, and filtration materials described above are used. By operating the motor M of the pump 53, water in the water tank 51 is pumped up from the water suction pipe 52, passes through the pipe 54, and is discharged from the discharge port 55 to the filter 5.
Enter 6. The water that has passed through the filter 56 enters a water storage tank 59 through a water channel 58, where it is subjected to water electrolysis. The electrolyzed water falls into the filter 61, is filtered by the filter material 61, passes through the water channel 63, and returns to the water tank 51 via the pipe 64. And the gas generated here is the gas emission port 62.
From the atmosphere.

The electrode 60 for water electrolysis installed in the water tank 59 has the same structure as that described in the description of FIG. 2 and has the same function, reduces microorganisms in the water, and has a deodorizing function. Make This water electrolysis treatment
It does not oxidize ammonia in water generated from manure or residual food of fish and the like into nitrite, and further does not oxidize nitrite to nitrate, thereby reducing the adverse effect of ammonia and nitrite on fish. Thus, in the example of FIG. 4 of the present invention, in order to allow the bacteria to perform the above-described oxidation, particularly the oxidation of nitrite to nitrate, a filter material serving as a habitat for the bacteria having this action is made of a hydroelectric material. It was provided immediately upstream of the decomposition electrode. If the filter material which becomes the habitat of the above-mentioned bacteria is installed immediately downstream of the electrode for water electrolysis as shown in FIG. 2, the electrolyzed water immediately enters the filter material. It may interfere with the bacterial population in the filter media. Thus, in the example shown in FIG. 4, the filtering material 57 is located immediately upstream of the electrode for water electrolysis.
Is provided, the water that enters the filter medium 57 of the filter 56 is the water that has gone through the water tank after being electrolyzed, and does not have the above-described problems. Therefore, when the apparatus shown in FIG. 4 is used, ammonia and nitrite in the water tank can be efficiently converted to nitrate, and adverse effects of ammonia and nitrite on fish can be eliminated.

The example of the water purification apparatus shown in FIG. 5 is a modification of the example of the apparatus shown in FIG. In FIG. 5, 71 is a water tank, 72 is a water absorption pipe, and 73 is a water absorption pump. 74 is a pipe, and its water discharge port 7
5 is provided above the filter 76. 76 is a filter, and 77 is a filter. Reference numeral 78 denotes a water reservoir. 79
Is an electrode for water electrolysis, 80 is a filtering material, 82 is a gas outlet, and 84 is a pipe connecting the water channel 83 and the water tank 71. As the electrode for water electrolysis, the pump, and the filtering material, those described above are used. By operating the motor M of the pump 73, water in the water tank 71 is pumped up from the water suction pipe 72, and is discharged from the discharge port 75 through the pipe 74. Part of the discharged water enters the filter 76, and the remaining water enters the sump 78. The water that has entered the filter 76 passes through the filtering medium 77 and enters the water channel 81. The water that has entered the water reservoir 78 is electrolyzed by a water electrolysis electrode 79,
Further, the water enters the water channel 81 after passing through the filtering material 80. The water that has entered the water channel 81 passes through the water channel 83,
Return to The gas generated here is the gas outlet 8
2 to the atmosphere.

FIG. 5 shows an example of a water purifying apparatus.
The electrode 79 for water electrolysis installed in the
It has the same structure as that described in the description of, has the same effect, reduces microorganisms in water, and thus has a deodorizing effect. Also in the example of FIG. 5, in the same manner as described in the description of FIG. 4 above, the ammonia generated from the excrement of fish and the like and the residual food in the aquarium is reduced by the action of bacteria in addition to the action of water electrolysis. It is oxidized to nitrite, and nitrite is oxidized and converted to nitrate. And
The filter material 77 of the filter 76 is a habitat for the bacteria. The water that enters the filter medium 77 of the filter 76 is water that has passed through the water tank after being subjected to the electrolysis treatment, and thus has no sterilizing property at the time of the electrolysis treatment. Is less affected by this, and the use of the apparatus shown in FIG. 5 allows the conversion of ammonia in the water tank to nitrite and the conversion of this nitrite to nitrate by the action of bacteria. Also, in the case of the purification device shown in FIG. 3, the filter medium 44 is also suitable as a habitat for bacteria. In this case, too, the ammonia in the water tank is converted to nitrite, and the nitrate is converted to nitrite. Can be converted smoothly.

In the above example, the aquarium for breeding ornamental fish has been described. However, this purifying device can also be used in a fish pond or the like.
Gases generated by the electrolysis of water are mainly oxygen gas and hydrogen gas, and when water contains salt, chlorine gas is also generated. Of these, oxygen is necessary for living organisms such as fish and shellfish, and its existence is useful, but hydrogen gas and chlorine gas are harmful to living organisms. Therefore, in the present invention, water sterilization is performed by electrolysis, and among the hydrogen gas, oxygen gas, and chlorine gas generated in the water, bubble-like hydrogen gas mixed without being dissolved in water,
Oxygen gas and chlorine gas are radiated into the atmosphere by exposing water to the air, passing through a filtration layer, or adopting means for discharging the gas into the air, and are removed from the water and returned to the water tank. Oxygen gas bubbles are also released into the atmosphere at the same time. However, oxygen has a higher solubility in water than other gases, so that a sufficient amount of oxygen can be supplied for the growth of fish and shellfish. Also,
Of the gas generated from the electrode for water electrolysis, oxygen gas may be left as it is, and only hydrogen gas and chlorine gas may be collected and released into the atmosphere.

[0026]

According to the water purifying apparatus of the present invention, replenishment of oxygen can be performed simultaneously with purification of water. The purification device of the present invention can effectively sterilize water with a simple device, remove odors, and increase the transparency of water. In addition, oxygen gas, hydrogen gas, and chlorine gas generated by electrolysis and mixed in water are not dissolved in the water tank, but are released into the atmosphere and returned to the water tank. The adverse effects on living organisms such as fish and shellfish caused by gas and chlorine gas can be reduced, and they can be bred for a long time. Also, even if the above-mentioned gas is dissipated into the atmosphere, the oxygen gas can be relatively well dissolved in the water, so that the oxygen gas can be satisfactorily supplied into the water. When fish are raised in water, the dissolved oxygen becomes abundant, the color and the life of the fish are good, the movement of the fish is active, the food is eaten quickly, and the growth speed is fast. Further, since the water is sterilized, it is possible to prevent the propagation of microorganisms in the filter medium and reduce clogging of the filter medium. In addition, conversion of ammonia generated from manure or remaining food of fish and the like into nitrite and conversion of nitrite into nitrate can be efficiently performed, and adverse effects on fish and the like can be eliminated. Furthermore,
The aquarium using the purified water hardly causes algae to adhere to the glass of the aquarium, and can maintain a beautiful appearance for a long time.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of an example in which the water purification device of the present invention is used for water purification of an ornamental fish breeding aquarium.

FIG. 2 is a schematic view of another example in which the water purification device of the present invention is used for water purification of an ornamental fish breeding aquarium.

FIG. 3 is a schematic diagram of another example in which the water purification device of the present invention is used for water purification of an ornamental fish breeding aquarium.

FIG. 4 is a schematic view of another example in which the water purification device of the present invention is used for water purification of an ornamental fish breeding aquarium.

FIG. 5 is a schematic view of another example in which the water purification device of the present invention is used for water purification of an ornamental fish breeding aquarium.

[Explanation of symbols]

 1, 21, 41, 51, 71 Water tank 2, 27, 42, 60, 79 Electrode for water decomposition 3, 43 Outer cylinder 5, 23, 53, 73 Propeller type pump 8, 30, 46, 56, 76 Filter 9 , 31, 47, 57, 61, 77, 80 Filtration material 10, 29, 48, 62, 82 Gas outlet 26, 59, 78 Water reservoir 50 Air tube

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI C25B 11/03 C25B 11/04 Z 11/04 B01D 35/02 C

Claims (7)

[Claims] 1. A water purifying apparatus for pumping water in a water tank by a pump, sending the water to a filter, and returning the water passed through the filter to the water tank again, wherein an electrode for water electrolysis is installed in flowing water in the apparatus.
A water purification apparatus characterized in that a gaseous gas generated by the electrolysis is removed from water, radiated into the atmosphere, and then returned to the water tank. 2. An electrode for water electrolysis installed in a water tank, a device for collecting water containing bubble-like gas generated by electrolysis and sending it to a filter by a pump, a filter having a gas discharging port, and A pipe for returning the water filtered by the filter to a water tank. 3. An apparatus for pumping water in a water tank with a pump, an electrode for water electrolysis installed in the pumped water, and a gas outlet for filtering the water electrolyzed by the electrode for water electrolysis. A water purifier comprising: a filter; and a pipe for returning water filtered by the filter to a water tank. 4. A device for pumping water in a water tank by a pump, a filter for filtering the pumped water, an electrode for water electrolysis installed in the water discharged from the filter, and an electrode for water electrolysis. A water purifying device comprising: a filter having a gas outlet for filtering decomposed water; and a pipe returning water filtered by the filter to a water tank. 5. A device for pumping water in a water tank by a pump, a filter for filtering a part of the pumped water, an electrode for water electrolysis for electrolyzing other water, and an electrode for water electrolysis. A water purifier comprising: a device provided with a filter for filtering water electrolyzed by an electrode and provided with a gas discharge port; and a pipe for returning water discharged from the device to a water tank. . 6. An electrode for water electrolysis comprising a sheet-like non-conductive material having a large number of through-holes and a conductive material having a large number of through-holes laminated on both sides of the sheet-like non-conductive material. The water purification device according to any one of claims 1 to 5, wherein the water purification device is a composite electrode having a hole passing through the material and each conductive material. 7. The water electrolysis electrode is a composite electrode in which a non-conductive material and a conductive material are sequentially laminated on both surfaces of a diaphragm and has a hole penetrating the non-conductive material and the conductive material. The water purification device according to any one of claims 1 to 5, wherein