JP3068364U - Alkali killer for liquids with metal ions and chlorine - Google Patents

Abstract

(57) [Summary] [Object] To disinfect water and disinfect water simply and safely without using any chlorine-based chemicals and without depositing copper powder, and exhibit extremely high disinfection and algicidal effects. Provide equipment. An ion / chlorine generator having an electrode formed of a predetermined metal is provided in a flow path for circulating water containing a required concentration of salt in a water facility, and the electrode is electrolyzed. A sterile algicidal device that sends out the metal ions and chlorine to the water facility through the flow path and sterilizes and kills water in the water facility, wherein the electrode is formed of copper or silver or a copper-silver alloy. An electrode array comprising a first rod-shaped member and a second rod-shaped member formed of titanium and coated with platinum, wherein the first rod-shaped member and the second rod-shaped member are alternately arranged. Are provided in parallel, and the total number of rods in each electrode row is the same, and the arrangement order of the rods in one electrode row is different from the arrangement order of the rods in another electrode row adjacent to the electrode row. The configuration is as follows.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 According to the present invention, an ion generator is installed in the middle of a water channel that returns water to water facilities such as bathtubs, ponds, fountains, pools, water tanks, etc., and the water in the water facilities is sterilized with metal ions generated by the ion generator. It relates to a device for killing alga.

[0002]

[Prior art]

 Conventionally, a metal ion generator having a plurality of metal plates is provided in a water facility such as a bathtub, a pond, a fountain, a pool, a water tank, etc., in the middle of a flow path for returning a predetermined amount of water, and the metal plates are electrolyzed. A sterilizing and algicidal apparatus is known which sterilizes or algae-kills water in the above-mentioned water facility with metal ions, particularly silver ions, copper ions and the like (for example, Japanese Utility Model Application Laid-Open No. 2-66294). issue). The germicidal and algicidal device using this metal ion has many advantages such as excellent germicidal activity and algicidal activity, being inexpensive and easy to use, and has been widely adopted in recent years.

[0003]

[Problems to be solved by the invention]

 However, when the water in the water tank or the like is severely contaminated, the sterilizing power of silver ions and the algicidal power of copper ions are limited, and it takes a long time to sterilize and purify such water. Was. Therefore, it was necessary to add a chlorinated chemical (such as sodium hypochlorite) to the water facility to enhance the bactericidal and algicidal activity by the catalytic action of metal ions. As a result, the cost is increased and the operation is complicated. Furthermore, by adding chlorine-based chemicals to water facilities, the quality of hot spring water changes, the filter circulation system becomes oxidized and corroded, and its life (durability) is shortened. There has been a problem of giving discomfort such as odor, irritation to eyes, skin, nose and throat, and the like.

[0004] When the metal plate in the ion generator is made of only the same type of metal plate, a part of the eluted metal ions returns to the original metal. There was a disadvantage that the efficiency of algicidal power was reduced. That is, for example, when all of the metal plates are copper electrode plates and electrolyzed, the copper ions generated at the anode are attracted to the cathode. At that time, hydrogen gas is generated near the cathode and alkaline Therefore, the charge of the copper ion is lost. As a result, copper ions disappear and instead copper powder precipitates out and adheres to the copper plate of the cathode or precipitates at the bottom of the water bath. Therefore, not only the sterilization effect of the copper ions is reduced, but also problems such as contamination of the copper electrode plate and turbidity of water due to precipitation of copper powder have occurred. This has been the case with other metals used in this type of water disinfection and algicidal devices, such as silver and copper-silver alloys.

[0005] The present invention has been made in view of these drawbacks, and does not require the use of any chlorine-based chemicals that have a harmful effect on the human body, etc., and does not cause precipitation of copper powder, and is simple and easy. It is an object of the present invention to provide a liquid sterilizing and algicidal device capable of exhibiting safe and extremely high sterilizing and algicidal effects.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the algicidal device for sterilizing a liquid with metal ions and chlorine according to the present invention is formed of a predetermined metal in the middle of a flow path for recirculating water containing a required concentration of salt in a water facility. An ion / chlorine generator with electrodes is provided, and the electrodes are electrolyzed by the power from the power supply unit. A germicidal and algicidal device for performing algicidation, wherein the electrodes are formed of a plurality of first rods formed of copper, silver, or a copper-silver alloy, and a plurality of second rods formed of titanium and coated with platinum. And a plurality of electrode rows formed by alternately arranging the first rod-shaped bodies and the second rod-shaped bodies at predetermined intervals are provided in parallel with each other. The total number of both rods It is the number, and is characterized that you the arrangement order of the rod-like body of both the one electrode array has a configuration which made different from the order of arrangement of the rod-shaped body of both other electrodes adjacent columns with the electrode array.

Further, in this liquid sterilization and algicidal device using metal ions and chlorine, the first electrodes are formed of copper, silver, or a copper-silver alloy, as described in claim 2. And two second rods formed of titanium and coated with platinum, and one of the first rods and one of the second rods are arranged at a predetermined interval. And a second electrode array formed by arranging the other of the first rod-shaped body and the other of the second rod-shaped body at a predetermined interval. Are arranged in parallel, and the arrangement order of both rods in the first electrode row is desirably different from the arrangement order of both rods in the second electrode row.

Further, the liquid sterilizing and algicidal device using metal ions and chlorine according to the present invention provides a single rod-shaped electrode whose electrode is formed of copper, silver, or a copper-silver alloy. And a second rod-shaped body made of titanium and coated with platinum, wherein the first rod-shaped body and the second rod-shaped body are arranged at intervals. It is characterized by.

Further, according to the present invention, the liquid disinfecting and algicidal device using metal ions and chlorine has a plurality of first rod-shaped members each having an electrode formed of copper, silver, or a copper-silver alloy. And a plurality of second rods formed of titanium and coated with platinum, wherein the first rods and the second rods are alternately arranged at predetermined intervals. In this case, one electrode row is formed.

[0010] Further, according to the present invention, the liquid sterilizing and algicidal device using metal ions and chlorine according to the present invention has a structure in which one electrode is formed of copper, silver, or a copper-silver alloy. And two second rods formed of titanium and coated with platinum, wherein the second rods are spaced at predetermined intervals on both sides of the first rods. It is characterized by being arranged. Further, as set forth in claim 6, the first electrode is formed of copper, silver or a copper-silver alloy, and the second rod is formed of titanium and is coated with platinum. A rod-shaped body, wherein the first rod-shaped body is disposed at predetermined intervals on both sides of the second rod-shaped body.

[0011]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. The germicidal and algicidal device according to the present invention mainly includes an ion / chlorine generator 16 and a power supply device 17, FIG. 1 is a perspective view of a main part showing an example of the ion / chlorine generator, and FIGS. It is an outline bottom view of the important section showing an example of the 1st-4th embodiments of an ion chlorine generator.

In FIG. 1, reference numeral 1 denotes a hollow, substantially bottomed short cylindrical casing, 1a denotes a water inlet provided on one side surface of the casing 1, and 1b is provided on a surface opposite to the inlet 1a. It is a discharge port of drained water, and the arrow indicates the direction in which the water flows. Reference numeral 2 denotes a horizontal plate held horizontally in a casing 1. The horizontal plate 2 is formed with a plurality of engagement holes 2a, the size of which is formed at one end of rod electrodes 3 and 4 shown below. The threaded portions 3a, 4a are sized to be inserted.

Reference numeral 3 denotes a rod-shaped electrode (hereinafter, referred to as a metal ion electrode) which is formed in a rod shape from copper, silver, or a copper-silver alloy, and which is electrolyzed to generate metal ions of the metal. Reference numeral 4 denotes a rod-shaped electrode (hereinafter referred to as a titanium electrode) formed of titanium having a high degree of corrosion resistance, and the surface thereof is insoluble, durable, and improves the safety of electrolytic water quality. It is coated with platinum (other than platinum group such as iridium, palladium and rhodium). Preferably, the coating thickness of platinum is 1 to 5 μm. Both the metal ion electrode 3 and the titanium electrode 4 have threaded portions 3a, 4a at one end. The screw portions 3a, 4a may have a thickness substantially equal to the thickness of the other portions of the metal ion electrode 3 and the titanium electrode 4, but are resistant to rising pressure generated by water pressure flowing into the casing 1. In order to increase the force, it is desirable to form the stopper portions 3b, 4b slightly smaller than the other portions. Then, these screw portions 3a, 4a are inserted into the engagement holes 2a of the horizontal plate 2 and tightened with nuts 5 from above the horizontal plate 2, thereby fixing the horizontal plate 2, the metal ion electrode 3, and the titanium electrode 4. . The method for fixing the metal ion electrode 3 and the titanium electrode 4 shown in the figure is an example, and is not limited to these methods. For example, a female screw is directly formed on the horizontal plate 2 and the metal ion electrode 3 is fixed. Alternatively, the screw portions 3a and 4a of the titanium electrode 4 may be screwed.

Next, FIGS. 2 to 6 are schematic bottom views of the horizontal plate 2 showing a state in which the metal ion electrode 3 and the titanium electrode 4 are fixed to the horizontal plate 2. The first embodiment of the germicidal and algicidal device according to the present invention is one in which two metal ion electrodes 3 and two titanium electrodes 4 are arranged on the horizontal plate 2 as shown in FIG. 1 and FIG. Have been. That is, in the present embodiment, one of the metal ion electrodes 3 and one of the titanium electrodes 4 form a row (hereinafter referred to as an electrode row) A, and the other of the metal ion electrodes 3 and the other of the titanium electrodes 4. Form an electrode row B, and the electrode rows A and B are provided in parallel. The distance between the metal ion electrode 3 and the titanium electrode 4 in the electrode row A is the same as the distance between the metal ion electrode 3 and the titanium electrode 4 in the electrode row B. Furthermore, the arrangement order of the metal ion electrode 3 and the titanium electrode 4 is different from that of the electrode rows A and B. In the illustrated example, the arrangement order of the electrode row A is titanium electrode 4 → metal ion electrode 3 from the top. The arrangement order of the electrode rows B is metal ion electrode 3 → titanium electrode 4 from the top.

Next, the second embodiment of the germicidal and algicidal device according to the present invention is a case where there are a plurality of electrode rows formed by the total number of the metal ion electrodes 3 and the titanium electrodes 4 being 3 or more. Yes, an example is shown in FIG. Also in the second embodiment, each electrode row is provided in parallel. The total number of the metal ion electrodes 3 and the titanium electrodes 4 in each electrode row is the same in all the electrode rows, and the intervals between the electrodes in all the electrode rows are the same as those in the other rows. For example, in FIG. 3, the electrode rows A and B are parallel, the number of electrodes in the electrode rows A and B is the same, and the distance between the electrodes in the electrode row A and the The spacing between the electrodes is the same. In order to generate stable amounts of metal ions and chlorine, it is desirable that the intervals between the electrodes in the electrode row be the same. The order of arrangement of the metal ion electrode 3 and the titanium electrode 4 in each electrode row is different, for example, titanium electrode 4 → metal ion electrode 3 → titanium electrode 4; And the titanium electrode 4 are alternately replaced. In the present embodiment, the arrangement order of the electrodes of one electrode row adjacent to each other is made different from the arrangement order of the electrodes of the other electrode row. For example, in the illustrated example of FIG. 3, when the arrangement of the electrodes in the electrode row A is titanium electrode 4 → metal ion electrode 3 → titanium electrode 4 from the top, the arrangement of the other electrode row B is metal from the top. The electrodes are arranged such that the ion electrode 3 → the titanium electrode 4 → the metal ion electrode 3. In the present embodiment, as long as the metal ion electrode and the titanium electrode can be attached to the horizontal plate 2, the number of these electrodes and the number of electrode rows may be three or more.

Further, as shown in FIG. 4, the third embodiment of the germicidal and algicidal device according to the present invention has one metal ion electrode 3 and one titanium electrode 4 on the horizontal plate 2. Is provided. The distance between the metal ion electrode 3 and the titanium electrode 4 is arbitrary.

Next, in a fourth embodiment of the germicidal and algicidal device according to the present invention, a plurality of metal ion electrodes 3 and a plurality of titanium electrodes 4 are alternately arranged on the horizontal plate 2 at equal intervals. They are arranged to form one electrode row, and FIG. 5 shows an example thereof. That is, in the illustrated example, there are two metal ion electrodes 3 and three titanium electrodes 4, and from above, titanium electrode 4 → metal ion electrode 3 → titanium electrode 4 → metal ion electrode 3 → titanium electrode 4, one electrode row is formed.

Further, in the fifth embodiment of the germicidal and algicidal device according to the present invention, the horizontal plate 2 has one of two types of electrodes, a metal ion electrode 3 and a titanium electrode 4, and the other one. FIG. 6 shows an example in which two electrodes are provided, and two electrodes sandwich one electrode at equal intervals and are disposed on both sides thereof. . That is, in the illustrated example, there is one metal ion electrode 3 and two titanium electrodes 4. Two titanium electrodes 4 are arranged in the order of titanium electrode 4 → metal ion electrode 3 → titanium electrode 4 from above. One metal ion electrode 3 is sandwiched at the same interval, and is disposed on both sides thereof. Further, two metal ion electrodes 3 and one titanium electrode 4 are used, and two metal ion electrodes 3 sandwich one titanium electrode 4 at equal intervals and are disposed on both sides thereof ( (Not shown). In the fourth and fifth embodiments, all the metal ion electrodes 3 are arranged so as to be sandwiched between the titanium electrodes 4 in order to efficiently electrolyze the metal ion electrodes 3 as in the examples of FIGS. It is desirable to set up.

Next, the power supply device 17 is used in all embodiments of the present invention and has a role of supplying electricity to the ion / chlorine generator 16. It also has functions to control the switching of electricity and the amount of electricity.

FIG. 7 is a schematic diagram showing a water circulation system in which the sterilizing and algicidal device according to the present invention is implemented. Among them, 11 is a water facility such as a pond, a pool, a water tank, etc., 12 is a water supply source such as a filter, a tank, and a water supply for supplying water to the water facility 11, and 13 is a connection between the water supply source 12 and the water facility 11. , A flow path through which a predetermined amount of water flows. An ion / chlorine generator 16 is provided in the flow path 13 via various valves 15 (bypass valve 15a, drain valve 15b). The ion / chlorine generator is connected to a power supply 17 via an output cable 18.

The water circulating in the water circulation system is added with sodium chloride (NaCl) necessary for generating chlorine. The concentration of salt in water may be relatively low, but its value is specifically determined by the type of water facility and the amount of water.

Then, the water containing salt is supplied from the water supply source 12 to the ion / chlorine generator 16 through the suction port 1 a via the flow path 13, and the titanium electrode 4 is used as an anode, and the metal ion electrode When electricity is applied using the cathode as a cathode, sodium chloride is electrolyzed and chlorine (hypochlorous acid) is generated. On the other hand, when electricity is supplied using the titanium electrode 4 as a cathode and the metal ion electrode 3 as an anode, the metal ion electrode 3 is electrolyzed, and metal ions such as copper or silver are generated.

When the metal ion electrode is an anode, the generated metal ions are attracted to the cathode, but titanium has a property that it is difficult to generate hydrogen gas. Therefore, the charge of the generated metal ions is not lost and does not return to the original metal, so that the decrease in the metal ion content can be reduced and the powder of the metal in the vicinity of the cathode can be reduced. Precipitation is also greatly reduced.

Here, the anode and the cathode of the electrode are set at a predetermined time interval by the power supply device 17 so as to be automatically switched. The switching from the anode to the cathode and the switching from the cathode to the anode are considered as one cycle. For example, by setting such that several cycles can be performed in one hour, the water containing stable metal ions and chlorine (hereinafter referred to as “water”) can be obtained. Electrolyzed water) can be supplied.

The electrolytic water produced as described above is sent from the discharge port 1 b to the water facility 11 via the flow path 13. Then, in the water facility 11, water sterilization and algicidation are performed. Further, the water facility 11 is provided with a drain 19 and a drain port 20, and a part thereof is used for a fountain 23 via a hair strainer 21, a circulating pump 22, or another hair strainer 24. The water is sent to the filter 12 via the circulation pump 25 and the like, and the water filtered by the filter 12 is sent again to the water facility 11 through the flow path 13 and circulated.

Here, the electrolyzed water has a synergistic effect with chlorine due to the catalytic action of the metal ions. An extremely high germicidal and algicidal effect can be achieved. Further, in addition to eliminating the need for using a chlorine-based chemical, chlorine contained in the electrolyzed water formed through the electrolysis step is about 1/10 to 1/50 as compared with the case where the chlorine-based chemical is used. Since it has the same bactericidal and algicidal activity at a residual chlorine concentration of a certain level, it is possible to suppress the occurrence of adverse effects such as those that occur when using the above-mentioned chlorine-based chemicals. Furthermore, the chlorine contained in the electrolyzed water loses its activity in a short time after sterilization of the water facility, and returns to a low concentration of dissolved salt. Therefore, once sodium chloride is added to the refluxing water, it is not necessary to re-add sodium chloride for a long time, so it is efficient in terms of labor and cost, and is safe for the user and environmentally friendly. Easy. Further, when it is desired to increase or decrease the sterilizing and algicidal power depending on the state of contamination of the water facility, the amount of generated metal ions and chlorine can be increased or decreased by adjusting the amount of current in the power supply device 17. Therefore, it is possible to efficiently and extremely easily sterilize and kill water with water.

[0027]

[Effect of the invention]

 According to the present invention, an ion / chlorine generator is disposed in water containing a required concentration of salt, and when electricity is supplied, chlorine is generated in addition to metal ions such as silver. The synergistic effect with chlorine is produced by the catalytic action of the above, so that an extremely high effect of about 10 to 1000 times can be achieved as compared with the case where the water is sterilized and treated with only metal ions.

Further, according to the present invention, the titanium electrode and the metal ion electrode are alternately switched to the anode and the cathode, and the current is applied, so that calcium (silica), metal powder, and other solid deposits (scale) can be removed. Adhesion to the electrodes can be greatly suppressed, and electrode cleanup can be performed very easily.

Furthermore, according to the present invention, a remarkably excellent bactericidal and algicidal effect of water in a water facility can be obtained without using a chlorine-based chemical. Since the amount of chlorine can be adjusted, the method of use is simple and the cost is reduced.In addition, the durability of the system that circulates water to the water facility itself is improved, and it is safe and comfortable for the human body. Water facilities can be provided to users.

According to the present invention, most of the metal ions once generated (about 70% or more) do not return to the original metal again, so that the sterilization and algicidal power of the metal ions is maintained. And a large reduction in the deposition of metal powder, thereby preventing water contamination in water facilities.

Further, the titanium electrode has a high corrosion resistance and is durable because it is coated with platinum. It is economical because it can be used at any time, and it can be recycled, which contributes to effective use of resources and, consequently, environmental protection.

[0032]

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part of an ion / chlorine generator in a liquid sterilization and algicidal device according to the present invention.

FIG. 2 is a schematic bottom view of a horizontal plate showing an arrangement of electrodes, showing an example in which there are a plurality of rows of electrodes and the total number of electrodes is four.

FIG. 3 is a schematic bottom view of a horizontal plate showing an arrangement of electrodes, and shows an example in which there are a plurality of rows of electrodes and the total number of electrodes is six.

FIG. 4 is a schematic bottom view of a horizontal plate showing an arrangement of electrodes, in which the number of electrodes is singular and the number of metal ion electrodes and the number of titanium electrodes are both singular (one by one). Is shown.

FIG. 5 is a schematic bottom view of a horizontal plate showing an arrangement of electrodes, showing an example in which the number of metal ion electrodes and the number of titanium electrodes are both plural in a single row of electrodes. I have.

FIG. 6 is a schematic bottom view of a horizontal plate showing an arrangement of electrodes, in which the number of electrodes is singular, one of a metal ion electrode and a titanium electrode is singular, and the other is plural. The example in the case of is shown.

FIG. 7 is a schematic diagram showing a water circulation system in which the sterilizing and algicidal device according to the present invention is implemented.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casing 1a Suction port 1b Discharge port 2 Horizontal plate 2a Engagement hole 3 Metal ion electrode 4 Titanium electrode 3a, 4a Screw part 3b, 4b Stopper part 5 Nut 11 Water facility 12 Water supply source 13 Channel 14 Sterilization and algicidal device 16 Ion / chlorine generator 17 Power supply A, B Electrode row

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI C02F 1/50 531 C02F 1/50 531E 531M 540 540B 550 550C 560 560F

Claims (6)

[Utility model registration claims] 1. An ion / chlorine generator having an electrode formed of a predetermined metal is provided in a flow path for recirculating water containing a required concentration of salt in a water facility, and the electrode is powered by power from a power supply unit. Electrolyzing, sending out the resulting metal ions and chlorine to the water facility through the flow path, and sterilizing and algae killing the water of the water facility, wherein the electrode is copper or silver or copper silver. A plurality of first rods formed of an alloy, and a plurality of second rods formed of titanium and coated with platinum, wherein the first rod and the second rod are A plurality of electrode rows, which are alternately arranged at predetermined intervals, are provided in parallel, the total number of both rods in each electrode row is the same, and both rods in one electrode row are provided. The arrangement order of other electrodes adjacent to the electrode row Column sterilization algicidal system for a liquid with metal ions and chlorine, characterized in that it has a structure in which made different and the order of arrangement of both of the rod-shaped body. 2. An ion / chlorine generator having an electrode formed of a predetermined metal is provided in a flow path for circulating water containing a required concentration of salt in a water facility, and the electrode is powered by power from a power supply unit. Electrolyzing, sending out the resulting metal ions and chlorine to the water facility through the flow path, and sterilizing and algae killing the water of the water facility, wherein the electrode is copper or silver or copper silver. It comprises two first rods formed of an alloy, and two second rods formed of titanium and coated with platinum, one of the first rods and the second rod. A first electrode row formed by arranging one of the rods at a predetermined interval and the other of the first rod and the other of the second rod at a predetermined interval. A second electrode row formed and disposed is provided in parallel with the first electrode row. Both rod members microbicidal and algicidal system for a liquid to arrangement order by metal ions and chlorine, characterized in that it has a structure in which made different and the order of arrangement of the rod-shaped body of both the second electrode row of. 3. An ion / chlorine generator having an electrode made of a predetermined metal is provided in the flow path for circulating water containing a required concentration of salt in a water facility, and the electrode is powered by power from a power supply unit. Electrolyzing, sending out the resulting metal ions and chlorine to the water facility through the flow path, and sterilizing and algae killing the water of the water facility, wherein the electrode is copper or silver or copper silver. A first rod-shaped body made of an alloy, and a second rod-shaped body made of titanium and coated with platinum, wherein the first rod-shaped body and the second rod-shaped body are formed. And a liquid disinfecting and algicidal device using metal ions and chlorine. 4. An ion / chlorine generator having an electrode made of a predetermined metal is provided in a flow path for circulating water containing a required concentration of salt in a water facility, and the electrode is powered by power from a power supply unit. Electrolyzing, sending out the resulting metal ions and chlorine to the water facility through the flow path, and sterilizing and algae killing the water of the water facility, wherein the electrode is copper or silver or copper silver. A plurality of first rods formed of an alloy, and a plurality of second rods formed of titanium and coated with platinum, wherein the first rod and the second rod are A disinfecting and algicidal apparatus for liquids using metal ions and chlorine, wherein one electrode row is formed by alternately arranging the electrodes at predetermined intervals. 5. An ion / chlorine generator having an electrode formed of a predetermined metal is provided in a flow path for circulating water containing a required concentration of salt in a water facility, and the electrode is powered by power from a power supply unit. Electrolyzing, sending out the resulting metal ions and chlorine to the water facility through the flow path, and sterilizing and algae killing the water of the water facility, wherein the electrode is copper or silver or copper silver. A first rod formed of an alloy; and two second rods formed of titanium and coated with platinum, wherein the second rod is the first rod. A disinfecting and algicidal device for liquids using metal ions and chlorine, which are disposed at predetermined intervals on both sides of the liquid crystal. 6. An ion / chlorine generator having an electrode formed of a predetermined metal is provided in a flow path for circulating water containing a required concentration of salt in a water facility, and the electrode is powered by power from a power supply unit. Electrolyzing, sending out the resulting metal ions and chlorine to the water facility through the flow path, and sterilizing and algae killing the water of the water facility, wherein the electrode is copper or silver or copper silver. The first rod-shaped body is composed of two first rod-shaped bodies made of an alloy and one second rod-shaped body made of titanium and coated with platinum, wherein the first rod-shaped body is the second rod-shaped body A disinfecting and algicidal device for liquids using metal ions and chlorine, which are disposed at predetermined intervals on both sides of the liquid crystal.