JPH06319408A - Water purifier - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent water from accumulating in the aquarium for a long period of time, and to be able to replace the aquarium scenic materials and to perform stable water purification. [Structure] A smooth inner bottom plate 6 which also functions as a water tank scenic material composed of a hole 4 for supporting aquatic plants and a water-permeable hole 5 is arranged at the bottom of a water tank 2 having a drainage port 7 at the bottom, and falls from the inner bottom plate 6. The water in the water tank 2 can be taken out of the tank through the drainage port 7, and the drainage port 7 is connected to a forced circulation passage through a water purification module 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aquarium and a water purifying device for purifying water in the aquarium, particularly a fish breeding aquarium and water in the aquarium.

[0002]

2. Description of the Related Art A conventional ornamental fish breeding tank will be described with reference to FIG. In the figure, the water 4 in the water tank is above the water tank 41.
An upper filtration device 43 for filtering 2 is arranged. Further, a pump 44 for pumping the water 42 in the water tank 41 and a water pump 45 are provided, and the water in the water tank pumped from the suction port 49 is always sent from the inlet port 46 to the upper filter apparatus 43 for filtering. After being discharged, it is discharged from the discharge port 47. And on the bottom of the aquarium 41, gravel and pebbles 4
8 and the like are arranged, and water plants 50 and the like, which are materials for landscape, are planted there.

However, in the aquarium 41, a means for treating leftover food accumulated in gravel and pebbles 48, fish excrement, etc. disposed on the bottom surface, and an efficient water purifying means for the upper filter 43. Are not provided.

[0004]

Generally, in aquariums for ornamental fish, water in the aquarium has problems such as generation of ammonia and stains due to fish excrement and uneaten food, and propagation of pathogenic bacteria. Further, nitrous acid generated in the process of decomposing nitrogen compounds such as ammonia was also a big problem.

In order to solve these problems, a top-mounted filter device as shown in the above-mentioned conventional example has been proposed.

However, in the above-mentioned conventional structure, it is said that the excrement of fish accumulated in the gravel or the pebbles 48 arranged on the bottom of the aquarium or the food left uneaten cannot be treated, so that the aquarium water becomes dirty and a foul odor is generated. There were challenges.

[0007] Further, the above-mentioned top-mounted filtration device has a problem that the aerobic bacteria group that decomposes organic matter such as fish excrement and residual food and ammonia cannot be maintained in an optimal breeding state, and the pathogens of fish and algae. There was also a problem of breeding and pebbles 48 in the aquarium becoming dirty and difficult to clean. In addition, aquatic plants, which are used as a landscape material, grow and die quickly, so pruning and replanting are difficult, and there is a big problem that if you look at the same aquatic plant forever, you will get bored.

The present invention solves the above-mentioned problems by immediately removing dirt from water excreted in fish tanks and leftover food from outside the tank to purify it and eliminating dirt accumulated on the bottom of the tank. It is an object of the present invention to provide a water purification device that can easily provide a new aquarium landscape by making it easier to replace the smooth plate at the bottom of the aquarium, which is a material for landscape, and aquatic plants. Also,
It also aims to prevent the development of pathogenic bacteria and algae in fish.

[0009]

SUMMARY OF THE INVENTION The present invention relates to a water tank having an inner bottom plate made of a smooth material having a water-permeable hole at the bottom of the water tank and a hole for supporting a scenic material of the water tank, and a water tank of the water tank. It is composed of a water purifying device for purifying water in the water tank taken out from the bottom to the outside of the water tank, and a forced circulation flow path for returning to the water tank after passing through the water purifying device.

[0010]

According to the above construction, fish excrement, uneaten food, foreign matter, microalgae, fish pathogens, etc. generated in the aquarium are made of a smooth material provided at the bottom of the aquarium that also serves as a landscape of the aquarium. It falls from the first bottom surface to the bottom surface of the water tank, and is completely taken out of the tank through the drain port on the bottom surface of the water tank. Suspended organic matter consisting of fish excrement and leftover food taken out of the tank, foreign matter,
Microalgae, pathogenic bacteria of fish, etc. enter the water purification module together with the air attracted by the air supply means by the water pressure feeding means. Organic substances that enter the water purification module are efficiently decomposed in an oxygen-rich atmosphere by the water purification bacteria group that propagate on the surface of the immobilization carrier of the water purification bacteria contained in the water purification module. That is, the water is purified.

Further, with the above structure, the ornamental aquatic plants planted in the pot are put in the aquarium in a suspended state,
It can be held and placed in the hole on the first bottom surface made of a smooth material that also serves as a water tank landscape provided at the bottom of the water tank. Further, when taking out aquatic plants already held in the holes on the first bottom surface, the aquatic plants in a state of being planted in a pot may be pulled up, so that exchange of aquatic plants becomes easy and can be changed frequently.

[0012]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 shows an embodiment in which the water purifying apparatus of the present invention is applied to an ornamental fish breeding aquarium. Water purification device 1
Are arranged between the forced circulation channels 3a and 3b of the water tank 2. Dirty water containing organic matter consisting of excretions of fish and food leftover from the aquarium 2, foreign substances (trash, shellfish, etc.), fish pathogens and microalgae supports the aquatic plants 20 provided at the bottom of the aquarium. A smoothing inner bottom plate 6 having a hole 4 and a water permeable hole 5 is passed through a drainage port 7 through a water flow path (outward path) 3a, and enters a filtration module 8 for filtering the foreign matter, where the foreign matter is removed. It

Next, the dirty water containing the above-mentioned organic matter, pathogenic bacteria of fish, microalgae, etc., is a water purification module 11 consisting of a basic mineral substance 10 in which aerobic bacteria for water purification are propagated by the water pressure feeding means 9. to go into. In this water purification module 11, organic substance decomposing bacteria, ammonia, oxidizing bacteria, nitrite oxidizing bacteria and the like are propagated. On the other hand, an ejector 12, which is an air supply means, is installed at the inlet of the water purification module 11, and air is sucked by the ejector effect via the air solenoid valve 13 and the distribution pipe 14 to generate bubbles containing air. To do. The ammonia produced by the decomposition of the organic matter by the oxygen in the air is accelerated by the ammonia-oxidizing bacteria and the nitrite-oxidizing bacteria to be oxidized and decomposed into non-toxic nitric acid and becomes clean water according to the following formula.

[0015]

[Chemical 1]

The water in the aquarium that has been cleaned by decomposing organic substances in this way is used as a water temperature control / sterilization module 17 having a built-in ultraviolet lamp 15, heater 16, cooling heat exchanger and the like.
Enter the water temperature, adjust the water temperature and kill the pathogenic bacteria and microalgae of the fish, then pass through the water flow path (return path) 3b,
After removing the extremely fine bubbles that have been mixed by the air separator 19 through the outflow passage 18, the water is returned to the water tank 2. The nitric acid contained in the water returned to the water tank 2 is removed by the water grass 20 held in the hole 4 for supporting the water grass of the smooth inner bottom plate 6 provided at the bottom of the water tank.

Reference numeral 21 is a solenoid valve for separating the water tank 2 and the water circuit, and the outlet of this solenoid valve 21 communicates with the inflow passage of the filtration module 8. Reference numeral 22 is a water leakage sensor that detects water leakage from the water purification device 1 and the water tank 2. 23 is a control box containing a control circuit as a control device, 24 is a feeder, 2
Reference numeral 5 is a water-permeable cap that covers the drainage port 7, and 26 is a support base that supports the inner bottom plate 6.

FIG. 2 is a plan view of the water tank, and FIG. 3 is a sectional view of the water tank. In the figure, a stone 27 as a water tank scenic material is arranged on an inner bottom plate 6 having a hole 4 for supporting a water plant 20 provided at the bottom of the water tank and a water permeable hole 5. In the hole 4 for supporting the aquatic plant, the aquatic plant 20 planted in a water-permeable pot 29 is held.

Further, the water-permeable holes 5 drop dirt generated in the aquarium 2 on the bottom surface 30 by the water stream of the fish, and the fish 28 being bred are fed to the inner bottom plate 6 and the bottom surface 30.
It also serves as an entrance to and exit from. The dirt of the aquarium that has fallen on the bottom 30 of the aquarium can be completely discharged to the outside of the aquarium from the outlet 7 covered by the water-permeable gap 25 as the fish 28 swims near the bottom 30. In addition, the inner bottom plate 6 is offset-printed with a photograph of pebbles or gravel that is generally used on the bottom surface of an aquarium, and its front and back surfaces are made of transparent hard chloride having a thickness of 0.1 to 0.3 mm and excellent in water resistance. After laminating with vinyl, the back surface was bonded to an acrylic resin plate with a thickness of 15 mm to make a prototype. Further, the inner bottom plate 6 is made of water-resistant unsaturated polyester resin, acrylic resin, ABS.
We also prototyped artificial marble, which is a composite of resin, epoxy resin, and natural stone. These inner bottom plates 6 are 6a, 6
The water tank 2 is divided into two parts to facilitate attachment / detachment to / from the support base 26 of the water tank 2.

Next, the following experiment was carried out to determine the discharge of dirt generated in the water tank 2 and the effect of decomposition and removal of the discharged dirt by the water purification device 1 and the ease with which the aquatic plant 20 and the inner bottom plate 6 can be replaced.

The aquarium fish tank used in the experiment is made of acrylic resin having an internal volume of 100 l, and has 5 holes 4 for supporting water plants having a diameter of 45 mm and water holes having a diameter of 40 mm at the bottom. When the inner bottom plate 6 provided with two pieces 5 is arranged, the fish 28 is polluted by the fish 28 on the bottom 3
When swimming near 0, it was easy to take it out of the water tank from the drainage port 7 completely. In addition, since the aquatic plant 20 planted in the pot 29 can be put in and out of the hole 4 provided in the inner bottom plate 6 at the bottom of the aquarium for supporting water-permeable aquatic plants, the aquarium used in the experiment is aquatic plants. It has become easier to replace the so that it can be replaced frequently. Further, the inner bottom plate 6 has a diameter of about 5 to
Offset printing of 10mm color stones, each laminated on the front and back with 0.1mm thick transparent hard vinyl chloride with excellent water resistance, and epoxy resin-based adhesive on the back side to 15mm thick acrylic resin plate The ones made by adhering with an agent,
We made a prototype of artificial marble, which is a composite of unsaturated polyester resin and an inorganic material such as natural stone. These inner bottom plates were divided into two parts so that they could be easily attached to and detached from the water tank 2. By making many kinds of inner bottom plates to be installed on the bottom surface of the water tank 2 in this way, the scenery in the water tank 1 can be changed and enjoyed any number of times. In addition, each inner bottom plate 6 described above
As the fish 28 swims in the aquarium 1, fish excrement, residual food and the like can be immediately dropped to the bottom of the aquarium, so that a clean aquarium can be always realized.

Next, the water temperature in the water tank 2 was kept at 27 ± 1 ° C. by the heater 16, the heat exchanger for cooling, the thermistor and the like. Further, the filtration module 8 is a cylindrical one made of vinyl chloride having an internal volume of 0.5 l, and a filter made of stainless steel 70 mesh mesh is built in the filtration module 8.
The water purification module 11 has a cylindrical shape made of vinyl chloride and has an internal volume of 3 liters.
A water-purifying bacteria immobilization carrier consisting of a / 8 inch porous saddle lock type ceramic was incorporated. Further, an ejector 12 was installed at the inlet of the water purification module 11, and 1 l / min of air was supplied due to the ejector effect. Since the amount of oxygen in the air is a supply amount more than the amount necessary for nitric acid or oxidative decomposition of ammonia in water, the amount of dissolved oxygen in the water passing through the water purification module 11 is saturated. Therefore, unlike the conventional water tank, an air diffuser was inserted and aeration was not performed by the air pump. An ultraviolet lamp 15 disposed downstream of the water purification module 11 described above.
The product of the time taken for the water in the water tank 2 to pass through the container in one pass and the ultraviolet irradiance was 10 ³ μwsec / cm ² .

The above water tank 2 and the water purifying device 1 are combined as shown in FIG. 1, 20 tropical fish of about 5 cm in size are put in this water tank, daily feed of nitrogen content 30 mg is given, and water pressure feeding means 9 is used.
Measure the water quality in the water tank, the accumulated condition of dirt, the number of bacteria and algae adherence, the durability of the inner bottom plate 6, etc. when the water in the water tank was circulated at 5 l / min for 12 months and the effect was judged. did. Table 1 shows a part of the result.

[0024]

[Table 1]

From the results shown in Table 1, the water purifying apparatus of the present invention was fed daily with a nitrogen content of 30 mg, and even if tropical fish were bred for 12 months, NH ₄ -N, NO ₂ -N and COD in the water in the aquarium were kept. There is very little, and the dirt of the aquarium is well purified. In addition, since the bottom of the aquarium is free of dirt and algae attached and very few germs, it is possible to realize a clean aquarium with no bad odor for a long time.

Further, it was confirmed that each of the inner bottom plates 6 could be used in the water purifying apparatus of the present invention without any change even after the test for 12 months.

[0027]

As described above, according to the water purifying apparatus of the present invention, the following effects can be obtained. (1) Since the water stains generated in the water tank can be immediately taken out of the tank and purified, a clean water tank can be realized in which there is no accumulation of dirt on the bottom of the water tank and no water stains. (2) Scenery of the aquarium It becomes easy to exchange the inner bottom plate that also serves as the material for the aquatic plant, and if you prepare many kinds of the inner bottom plate and the aquatic plant, you can replace them as many times as you want, so you can always create a new aquarium landscape. You can enjoy watching.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a water purification device according to an embodiment of the present invention.

FIG. 2 is a plan view of a water tank provided in the water purification device.

FIG. 3 is a sectional view of a water tank provided in the water purification device.

FIG. 4 is a sectional view showing the configuration of a conventional water purification device.

[Explanation of symbols]

 1 Water Purification Device 2 Water Tank 4 Water Grass Support Hole 5 Water Permeation Hole 6 Smooth Plate 7 Drainage Port 9 Water Pressure Feeding Means 11 Water Purification Module 12 Air Supply Means 17 Water Temperature Control / Sterilization Module

Claims (2)

[Claims] 1. A water tank in which an inner bottom plate made of a smooth material having a water-permeable hole and a hole for supporting scenic material is detachably provided at a lower portion, and a water tank taken out of the water tank from the bottom of the water tank. A water purification device comprising a water purification device for purifying water and a forced circulation flow path for returning the water to the water tank after passing through the water purification device. 2. The water purifying apparatus according to claim 1, wherein the inner bottom plate is divided into two or more parts and is detachably provided in the water tank.