JPH1199392A - Antibacterial and algicidal purifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the antibacterial and algicidal purifier not spoiling a beautiful sight, which is safe, by which the generation of such protist as algae and water-bloom is prevented even if leaving it water for a long period and excellent in antibacterial, algicidal and purificative efficiency. SOLUTION: Zinc is eluted by this antibacterial and algicidal purifier set in water or on the bottom of the water. Further, the purifier is made from zinc, zinc alloy, die-cast zinc or the zinc, zinc alloy or die-cast zinc with the surface oxidized to form a zinc oxide coated layer in the shape of an ornament or in the shape of a pavement.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antibacterial, antialgal, and purifying body for preventing the generation of microorganisms generated in water, and more particularly, to the prevention of the generation of bacteria, molds, algae, and blue water by elution of zinc. The present invention relates to an antibacterial, anti-algal, and purifying body that is installed in water or on the bottom of water.

[0002]

[Prior Art] In a glass tank for ornamental fish or an ornamental pond,
Algae and blue-green algae generated in the water impair the aesthetic appearance, and water B
Increase OD and increase bacteria in water. For this reason, the transparency of the water is maintained by increasing the frequency of water exchange or circulating the water. Further, in order to prevent the growth of algae and blue-green algae, a powdery or liquid algicidal agent is dissolved in water, or a granular algicidal agent is used by fixing it in a water-permeable net or a sponge. However, it is necessary to add an anti-algae agent periodically, or it floats on the water or the bottom of the water, or sediments, thereby deteriorating the aesthetic appearance. Furthermore, if a strong chemical is added and left for a long period of time, there is a risk that the aquatic plants will be killed, the growth of fishes will be hindered, and the human body will be adversely affected.

[0003]

As described above, the anti-algal agent must have a long-lasting effect, but it must also be safe. In addition, indoor aquariums are often used for ornamental purposes, and those that impair the aesthetic appearance must not float or sediment. Therefore, the present invention provides an antibacterial action that suppresses the growth of fungi such as bacteria and mold, an anti-algal action that suppresses the growth of algae, an antibacterial action that suppresses the growth of microorganisms, and a purification action that suppresses water contamination by dead microorganisms. It is related to anti-algae and purification body,
An object of the present invention is to prevent the generation of microorganisms such as bacteria, fungi, algae and blue-green algae even if left in water for a long period of time without sacrificing aesthetics. To provide an anti-algae / purifying body.

[0004]

As a result of various studies, the present inventor has found that zinc is most suitable as a material having a safe, antibacterial, antialgal and purifying effect, and furthermore, zinc, zinc alloy or zinc die casting. By installing an antibacterial, anti-algal, and purifying body in the form of figurines and stones in the water or on the water floor, it does not impair the aesthetic appearance, and even without long-term care of the water,
It has been found that the purifying action can be maintained, and the present invention has been completed. Therefore, the present invention is an antibacterial, anti-algal, and purifying body that is installed in water or on the bottom of a water, wherein zinc is eluted in water. Further, the present invention provides zinc, a zinc alloy, zinc die-cast, or a zinc, zinc alloy having a zinc oxide coating layer formed by oxidizing the surface thereof,
The antibacterial, anti-algal, and purifying body according to the above, wherein the antibacterial, anti-algal, and purifying body is made of zinc die casting and has an ornamental shape. Also,
The present invention is zinc, zinc alloy, zinc die casting, or
The antibacterial, anti-algal and purifying body according to the above, characterized in that the surface is oxidized to form a zinc oxide coating layer, and is in the form of a cobblestone, made of zinc, a zinc alloy, or zinc die-cast.
Note that the antibacterial, antialgal, and purification effects referred to in the present invention refer to inhibiting or reducing the generation and propagation of microorganisms that occur and propagate in water, and specifically include bacteria, fungi, bacteria, viruses, The occurrence and reproduction of algae, plankton, blue-green algae, red tide, etc. can be suppressed or reduced. It also refers to the purifying effect by reducing the contamination of the surface of water, water bottom, glass and the like by these corpses that have propagated.

[0005] Gold, silver, copper and the like are known as metals having an antibacterial action. However, gold is expensive, and silver or copper forms blackish or patina when left in water, which impairs aesthetics. Will be. On the other hand, zinc forms a thin hydroxide film even when left in water for a long time, so that there is almost no change in appearance. Although the same anti-algal effect can be expected by galvanizing, it is not preferable because iron of the base metal is gradually exposed and a brown product is generated. If it is formed and processed into an object of a size and shape that does not cause discomfort even in water using a zinc plate or zinc die casting, the antibacterial, anti-algal, and purifying effects can be maintained as long as zinc remains. For example, stone, sand, water wheel, fish shape,
Pots, sheds, boats, etc. can be mentioned, but their shapes are not limited. Above all, if it is made into a stone shape, it can be dispersed over a large area without any discomfort even if it is laid on the bottom of the water or mixed with natural stone. In addition, when the surface of zinc is oxidized, a zinc oxide film is formed. Above all, when an oxide film is deposited electrically and chemically, a white zinc oxide layer is formed. Zinc oxide is known as a photocatalyst, and when irradiated with light including ultraviolet rays such as sunlight, fluorescent lamps, and fish ornamental fluorescent lamps, an oxidation reaction occurs on the zinc oxide surface, and it can decompose the attached algae and bacteria. it can. Examples of the method for forming the oxide film include boiling in water, heating, a chemical reaction using an oxidizing agent, and anodizing method using electrolysis, but the method is not limited thereto. The anti-algal body of the present invention is not limited to being installed in an aquarium,
For example, it is used in combination with a device for circulating water, installed in a part of the system in the form of a filter, or laid with a stone-shaped anti-algal body according to the present invention on the bottom of the circulating waterway, and irradiating a fish ornamental fluorescent lamp to this. It is also possible to cause stronger antibacterial, antialgal and purifying effects by photocatalytic activity.

[0006]

【Example】

Example 1 A fish-shaped ornament weighing 58 g was produced by die-casting using a zinc-based alloy (95% zinc-5% aluminum). Prepare two glass water tanks with air bubbling equipment containing 25 liters of river water (collected in the middle Arakawa river basin), put 5 goldfish in each of them, and put the fish-shaped zinc-based alloy in only one water tank. The figurine was sunk. When these two tanks were placed under the same conditions and given the same amount of food every day for two months, the water tank without the zinc-based alloy became green from around the second week, and the water became green. A month later, the spider broiled to the extent that the goldfish could hardly be seen. On the other hand, in the water tank containing the zinc-based alloy, the water was almost colorless and transparent even after 2 months, and all the goldfish grew without any problem. When the zinc ion concentration in the water after two months was measured, it was 2.3 ppm, which was less than half of the effluent standard.

EXAMPLE 2 A molten zinc ball was dropped into a stone-shaped zinc ball (about 8 particles per stone).
g) was prepared. Two glass tanks with an air bubbling device containing 25 liters of artificial seawater were prepared, 20 guppies were placed in each of these tanks, one tank was filled with ornamental aquarium balls, and the other tank was filled with ornamental aquarium balls. The stone was mixed with 50 stone-shaped zinc balls. Both look almost identical in appearance. When these two tanks were placed under the same conditions and given the same amount of food every day for three months, the tank without zinc balls turned green from around the first month, and after three months Algae formed on the water bottom and the glass surface. On the other hand, in the water tank containing the zinc balls, the water was almost colorless and transparent even after 3 months, and all the guppy grew without any problem. The zinc ion concentration in the water three months later was 1.3 ppm.

Example 3 Stone-shaped zinc spheres shown in Example 2 (about 8 g per grain) of about 15
No. 0 was put in a resin net, and a zinc rod (diameter: 3 mm) was inserted into the resin net, and this was used as an anode, a cathode was used as a stainless steel plate, and sodium hydroxide 0.2 mol / l.
The electrolytic treatment was performed in the aqueous solution for 30 minutes. Thereafter, the surface of the zinc sphere obtained by washing with water was white, and it was confirmed by X-ray diffraction that a zinc oxide film was formed. Under the same conditions as in Example 2 using 50 of these zinc balls, a ball for an aquarium was mixed and spread, and even after 6 months, the water was completely colorless and transparent. Also, as a result of measuring the number of coliform bacteria in the water tank three months later, those containing zinc spheres were 33 MPN / 100 ml, whereas those containing zinc oxidized surfaces were less than 2 MPN / 10 ml. It was found that the antibacterial effect was high.

[0009]

According to the present invention, the use of the antibacterial, antialgal, and purifying body comprising zinc, zinc alloy or zinc die-casting of the present invention makes it possible to remarkably suppress the generation and proliferation of protozoa floating on a glass surface, underwater or in water. . This effect lasts for months to years, as it persists until the zinc has eluted. During this time, Escherichia coli and algae are scarcely recognized, and they have antibacterial and antialgal effects. In addition, the transparency of the water is maintained high, and there is no spoilage odor due to the generation of algae. In addition, there is also a purifying effect such as killing of bacteria and improvement of transparency even in the water in which algae have grown.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI C02F 1/50 531 C02F 1/50 531U 540 540E 550 550B

Claims (3)

[Claims] 1. An antibacterial / algae-proof device to be installed in water or on the bottom of water.
An antibacterial, anti-algal, and purifying body, which is a purifying body that elutes zinc in water. 2. Zinc, zinc alloy, zinc die cast, or zinc whose surface is oxidized to form a zinc oxide coating layer;
2. The antibacterial, anti-algal and purifying body according to claim 1, wherein the antibacterial, algal-proof, and purifying body is made of a zinc alloy or zinc die-cast. 3. A zinc, zinc alloy, zinc die-cast, or zinc whose surface is oxidized to form a zinc oxide coating layer.
2. The antibacterial, anti-algal, and purifying body according to claim 1, wherein the antibacterial, algal-proof, and purifying body is made of a zinc alloy or zinc die-cast and has a cobblestone shape.