JP3053786U - Water quality improvement equipment for ornamental fish tanks using ceramics mixed with titanium dioxide. - Google Patents

Abstract

(57) [Summary] (Modified) [Problem] An improved filtration device with a built-in titanium dioxide-containing ceramic uses a small amount of ultraviolet light emitted from a fluorescent lamp to exhibit adsorption and photocatalytic effects, and can be used as a commercial ornamental fish tank or aquarium. It helps to improve the environment and water quality in the circulating filtration device of the water tank. A lighting device is installed on a conventional filtering device, and a titanium dioxide-mixed ceramic 10 is incorporated so as to be irradiated with ultraviolet rays. Several carefully selected natural ores, taking full advantage of the different properties, enhance the adsorption capacity of carefully finished ceramics and the photocatalytic capacity of titanium dioxide to each other, so that the current commercial ornamental fish tank 3 and aquarium This is an economical and hybrid device that makes extensive use of the water tank circulation type filtration device 2 without discarding it.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

The present invention is a combination of ultraviolet light of 400 _nm or less contained in sunlight on the earth and indoor lighting and the function of a titanium dioxide photocatalyst that makes the most of this light. This is to help improve the water quality of the aquarium or aquarium aquarium. The main objective is to make full use of the circulating water in the aquarium and the filtration equipment currently used. The liquefied titanium dioxide is finely powdered from several carefully selected natural ores, carefully mixed, and the titanium dioxide is coated on the ceramic baked at a high temperature in a furnace to remove the titanium dioxide-containing ceramic. I will build it up. This ceramic is put into a commercial aquarium fish tank or aquarium tank tank filtration device, and a circulating water quality improvement device is irradiated with ultraviolet light from a fluorescent lamp.

[0002]

[Prior art]

 The current circulation filtration equipment for commercial aquarium fish tanks or aquarium tanks uses a sterilization method using an ultraviolet lamp and the use of adsorbents such as sponges and porous materials. Disinfection with UV lamps is effective against bacteria and viruses, but it is not possible to treat excrement, organic matter and odorous substances by ornamental fish. So we use adsorbents to treat excrement, organic matter, odorous substances and persistent substances. However, there is a limit to the absorption effect alone, and a complete water quality improvement device that can decompose excreta, organic matter, and odorous and persistent substances has not been manufactured.

[0003]

[Problems to be solved by the invention]

 The first is to improve the environment in the safe and comfortable commercial aquarium for aquariums and the aquarium, and to improve the circulating filtration system. This involves changing the quality of the water in the tank and the circulation filter to ensure harmless, safe and sanitary water quality. Second, it makes it difficult for mold and dirt, etc., to be generated in the water tank and the circulation type filtration device. It is to be. Third, the ornamental fish grow vividly and vigorously, and the breeding management labor is reduced.

[0004]

[Means for Solving the Problems]

 In the present invention, ceramics mixed with titanium dioxide are put into a circulation filtration device in a commercial aquarium tank or aquarium tank. Lighting fixtures are not currently required for recirculating filtration equipment because they are not needed. However, it is important that the titanium dioxide-containing ceramic be exposed to ultraviolet light. Therefore, fluorescent or blacklight lighting fixtures were installed on top of the conventional filtration equipment. By demonstrating the adsorption and photocatalytic effects of ceramics mixed with titanium dioxide, it can deodorize, purify, antibacterial and adsorb circulating water in water tanks and circulating filtration devices. Titanium dioxide-containing ceramics produce a much stronger oxidizing power than titanium or ozone when illuminated with photocatalysis, that is, when illuminated with titanium dioxide.・ It can control the growth of mold and bacteria. Using this effect, it can treat persistent harmful chemicals in water and decompose toxins secreted from dead microorganisms. This titanium dioxide-containing ceramic exhibits the ability to deodorize, purify, antibacterial, and clean when using ultraviolet rays generated by the sun rays. When the sun rays cannot be used at night or when it is cloudy or rainy, the ceramics can be used. It absorbs various substances using its porous nature. Then, when exposed to the sun's rays, it begins to decompose the various adsorbed substances again. Titanium dioxide and ceramic are a great combination. Porous substances combined with titanium dioxide are substances that contain a large amount of silicon dioxide, which has the effect of enhancing the photocatalytic reaction. Aquarium fish tanks and aquarium tanks cannot use sunlight, so use a conventional filtration device and put the titanium dioxide mixed ceramic into the filtration tank. Lighting fixtures were installed on top of this filtration device, and a device that uses a trace amount of ultraviolet light, such as fluorescent light, to realize the photocatalytic effect of titanium dioxide-containing ceramics was created.

[0005]

[Embodiment of the invention]

 The circulating water filtration device in the commercial aquarium fish tank or aquarium tank currently in use is used as it is, and the spherically shaped titanium dioxide-containing ceramic is put into the appropriate place in the filtration tank. A suitable place is where the ultraviolet light from the fluorescent lamp is sufficiently irradiated on the ceramic when the lighting equipment is installed on the filtration device. By simply passing the circulating water from a commercial ornamental fish tank or aquarium tank in contact with the ceramic mixed with titanium dioxide, it exhibits an adsorption effect and a photocatalytic effect, which is completely different from conventional water quality. It is a safe, harmless and hygienic water quality. And it's wonderful that it can be used for both salt water and fresh water.

The photocatalytic reaction of titanium dioxide always involves oxygen. Light comes first. When light is absorbed by titanium oxide, two carriers are created: electrons (e ⁻ ) and holes (h ⁺ ). In ordinary substances, the two recombine immediately, but the titanium oxide photocatalyst will survive for a while. The percentage of recombination between carriers has a significant effect on the efficiency of photocatalytic reactions. A major feature of titanium oxide is that the oxidizing power of holes is stronger than the reducing power of excited electrons. Water called adsorbed water exists on the catalyst surface, and when this is oxidized by holes, hydroxyl radicals (.OH) with high oxidizing power are formed. The hydroxyl radical reacts with the organic compound. If oxygen is present, a radical chain reaction occurs between the radicals of the intermediate of the organic compound and oxygen molecules in this process, and the oxygen is consumed. Will be water. On the other hand, the pairing reduction reaction is the reduction of oxygen in the air. Since oxygen is easily reduced, superoxide anion (· O ₂ ⁻ ) is formed when oxygen is reduced. The superoxide anion is attached to an intermediate of the oxidation reaction to form a peroxide, or becomes water via hydrogen peroxide (H ₂ O ₂ ). In general, organic compounds are more easily oxidized than water, so that as the concentration of the organic compound increases, the probability of holes being used for the oxidation reaction of the organic compound increases, and the rate of recombination between carriers decreases. Under such a condition that the holes are sufficiently consumed, the process of transferring electrons to oxygen molecules at the reduction site becomes the rate-determining step of the entire photocatalytic reaction. In other words, the efficiency of the photocatalytic reaction can be increased by making the electrons easily transfer to the oxygen molecules.

[0007]

【Example】

 On October 15, 1997, it was registered in the utility model ledger under the name of a water quality improvement device (registration No. 30444655) for a circulating pool made of titanium dioxide mixed ceramic. By applying the effects of using this device, we developed and used it as a circulation filtration device for commercial aquarium fish tanks and aquarium tanks. Since almost the same equipment is used for water quality control by the circulation system, the water quality improvement equipment using ceramics mixed with titanium dioxide in the commercial aquarium fish tank and the aquarium tank of the present invention was sufficiently available. It was very helpful to have completed the water quality improvement device, especially by using the already manufactured filtration device and installing lighting equipment on it.

[0008] In April 1997, in a biological laboratory at Sayama Seiryo High School in Saitama Prefecture, Kochi sensei used this device for raising jellyfish and ornamental fish. Dr. Kochi was very surprised by the change in the water quality of the circulating water in the aquarium, and introduced the ceramic mixed with titanium dioxide to Mr. Shimura of the Enoshima Aquarium, and began experiments in the jellyfish aquarium at the Enoshima Aquarium. Currently, the experiment is ongoing, but it is very effective, and Shimura of the Enoshima Aquarium is considering how to use it in the future.

[0009]

[Effect of the invention]

 The circulating water in the circulation filter of the commercially available ornamental fish tank or aquarium tank mentioned above comes into contact with and passes through the titanium dioxide mixed ceramic irradiated with a small amount of ultraviolet rays from the fluorescent lamp. With this contact, the titanium dioxide-containing ceramic, which has adsorption and photocatalytic effects, exerts purification, adsorption, antibacterial, anticorrosion, and deodorant effects, and improves water quality in the aquarium.

[Brief description of the drawings]

FIG. 1 is a perspective view of an improved filtration device and a water tank with a built-in ceramic mixed with titanium dioxide of the present invention.

FIG. 2 is a cross-sectional view of the improved filtration device and the water tank incorporating the titanium dioxide-containing ceramic of the present invention.

[Explanation of symbols]

 1. lighting equipment. 2. Filtration device. 3. A clear glass or resin tank. 4. Motor pump. 5. Suction pipe. 6. strainer. 7. Discharge pipe. 8. Power cord. 9. Fluorescent light or black light or UV lamp. 10. Ceramic mixed with titanium dioxide. 11. float. 12. Circulating water level line.

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[Procedure amendment]

[Submission date] May 27, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI C02F 1/32 C02F 1/72 101 1/72 101 B01D 35/02 C

Claims (1)

[Utility model registration claims] 1. A water quality improvement device which is an improvement on a conventional filtration device for an ornamental fish tank by irradiating a titanium dioxide mixed ceramic with ultraviolet light.