JPH03217288A - Purifying device and method thereof - Google Patents

Abstract

PURPOSE:To reduce the filtering time by filtering water with fibrous activated carbon in a first filtration chamber and further filtering the water with a ceramic tube in a second filtration chamber. CONSTITUTION:The purification device is provided with the first filtration chamber 10 having plural inlets and the second filtration chamber 20 communicating with the chamber 10, and the chamber 20 has an outlet 31. Fibrous activated carbon is packed in the chamber 10, and plural cylindrical porous ceramic tubes are set in the chamber 20. The water to be purified in a water tank is introduced into the chamber 10 from the inlets 11, 12 and 13, and the suspended colloidal org. matter is adsorbed on the activated carbon in the chamber 10. The water passed through a grid-shaped partition member 17 in the chamber 10 is introduced into the chamber 20, and ammonia is converted into nitric acid made harmless by the microbes propagated in the porous ceramic tube.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to an aquarium purification device and method thereof, and particularly to an aquarium fish tank purification device and method thereof.

(Prior Art) In the conventional purification apparatus and method, as shown in FIG. 3, the water in the aquarium 1 is sucked up by a water absorbing strainer 3 through a pump 2, and sent into a filtration chamber 4 provided at the upper part of the aquarium. , a purification device (Example 1
), and as shown in FIG. 4, a synthetic resin bottom mat 7 is provided at the bottom of the aquarium 1 to provide a gap, and gravel 8 is spread over the bottom mat, and an air bomb 9 is used to spread the bottom mat 7. Send air into the air stone 10,
There is a purification device (Example 2) in which the water that has passed through the gravel 8 is returned to the aquarium from the upper part of the aquarium.

Furthermore, there is one (Example 3) in which a granular ion exchange resin or zeolite that adsorbs ammonia is used as the filter material.

(Problem to be solved by the invention) When raising ornamental fish in an aquarium, the water becomes cloudy due to organic matter such as the fish's excrement and uneaten food, and the ammonia discharged from the fish's gills is It is also harmful to yourself.

In the conventional apparatus, in Examples 1 and 2 above, microorganisms that convert ammonia, which is harmful to reared fish, from nitrite to nitric acid are generated in the filter material to purify it, but the water in the aquarium is completely replaced. When this occurs, there is a disadvantage that there are not enough microorganisms effective for water purification, and the I1 degree of ammonia in the water in the aquarium increases rapidly. Furthermore, it takes several weeks for the microorganism to reach a sufficient amount.

Furthermore, although the device of Example 3 is capable of adsorbing ammonia, the life of the ion exchange resin as a filter material is short and its regeneration is not easy. Furthermore, when zeolite is used as a filtering material, it has the disadvantage that it abnormally increases the pH of the water in the aquarium, which is harmful to goldfish and other freshwater fish.

In general, the devices of Examples 1, 2, and 3 have a problem in that it is very difficult to filter the colloidal organic matter f.

The object of the present invention has been made in view of the above-mentioned points, and it is an object of the present invention to provide a purifying device for an aquarium fish tank and a method thereof, which have a good filtration effect for a long period of time.

(Means for solving the vR problem) The purification device of the present invention includes a first filtration chamber having a plurality of inlets, a second filtration chamber communicating with the first filtration chamber, and a second filtration chamber communicating with the first filtration chamber. The second filtration chamber has an outlet, the first filtration chamber houses fibrous activated carbon, and the second filtration chamber houses a plurality of cylindrical porous ceramic tubes. It is configured so that

Further, it is preferable that a wall is provided in the first filtration chamber so that the fluid flows upwardly toward the upper wall of the first filtration chamber into which the fluid flows from the lower inlet of the plurality of inflow ports.

Furthermore, the purification method of the present invention has a structure in which the step of feeding with fibrous activated carbon is followed by the step of adsorption with a plurality of cylindrical porous ceramic tubes.

(Function) In the first filtration chamber, the fibrous activated carbon absorbs the leftover food and excreta of fish, as well as the colloidal organic floating matter made of them.

As shown in the comparison table of FIG. 5, this fluff-like fibrous activated carbon has a much larger specific surface area and outer surface area than conventional granular activated carbon. As a result, ammonia, nitrite molecules, and colloidal organic matter molecules that cause clouding of ornamental fish cave water are absorbed for a longer period of time than when granular activated carbon is used.

In addition, the fibrous activated carbon has adsorption pores (microbore) developed directly on the outer surface, and the adsorption rate is 11% higher than that of conventional activated carbon.
Since it is 0 to 100 times faster, it quickly adsorbs substances harmful to ornamental fish such as ammonia and other fine colloidal organic molecules.

Also, when tap water is used, it also adsorbs limescale.

In the 2'a filtration chamber, ammonia becomes detoxified nitric acid by the microorganisms generated in the large number of porous filtration tubes, and fine colloidal organic matter that was not adsorbed in the 1st filtration chamber is Adsorbed and decomposed.

Further, a wall is provided in the first filtration chamber so that water flowing from the lower inlet of the plurality of inlets flows upward toward the upper wall of the first filtration chamber.

(Tora Embodiment) Hereinafter, an embodiment of the present invention shown in FIG. 1A will be described.

The purification device of the invention consists of a filtration section and an outflow section.

The filtration section includes a first filtration chamber 10 having a columnar shape with a substantially triangular cross section, and a second cylindrical filtration chamber 2o provided at the bottom side of the first filtration chamber 10.

Fibrous activated carbon is stored in the form of fluff in the first filtration chamber 10 (see Fig. 1B), and a second filtration chamber 10 is stored therein.
0 is a porous ceramic tube with both ends open (
(see Figure 1B) are stored. A removable lid part 5 is provided on the upper surface of the first filtration chamber 10, and a plurality of slits, which are first inlet ports 11, are inclined upward on the front side of the lid part 5. It is set in the condition. Further, the lid portion 5 is provided with one slit which is a second inlet 12 separated from the first inlet 11 . Further, the first filtration chamber 10 is provided with a plurality of slits, which are third inlet ports 13, at two locations extending upward from the lower end of the first filtration chamber 10 at its side ends.

The inside of the first filtration chamber 10 is slightly inclined so that water flowing in from the third inlet 13 flows toward the center of the lid 5 of the first filtration chamber 10. An inwardly curved wall member 16 is provided. That is, this wall @1
6 forms an inflow pipe portion to the first filtration chamber 10;
The flow of water flowing in from the third inlet 11 flows into the third inlet 1
It is designed not to interfere with the flow of water flowing in from 3.

Therefore, water flowing in from each inlet always flows from the upper side to the lower side of the first filtration chamber.

The lower surface of the first filtration chamber 1o has a partially circular opening in the center, and a lattice-shaped partition plate member 17 with a large number of removable openings is attached to the upper side of the opening. Freely attached. This allows the fibrous activated carbon to be held thereon. This opening part communicates with the substantially cylindrical second filtration chamber 20, and a plurality of ceramic tubes ( See figure 2》
is stored. Furthermore, the volume of the second filtration chamber 20 is about 1/5 to 1/10 of that of the first filtration chamber 10.

On the other hand, the outflow section is a triangular flat section 30.
, a cylindrical first outflow pipe 31 arranged at the center of the platform part, a water storage section 32 built in the flat part that communicates with the outflow pipe 31, and an upper side from one end of the flat part. It consists of a second outflow pipe 40 which is arranged so as to extend in the water storage section and communicates with the water storage section.

The first outflow tube 31 is capable of fitting to receive the second filtration chamber 20 and retaining the entire filtration section, and the first outflow tube 31 is capable of receiving the second filtration chamber 20 and retaining the entire filtration section, and the first outflow tube 31 is capable of receiving the second filtration chamber 20 and retaining the entire filtration section. It communicates with the outflow pipe 40 of No. 2.

Further, the second outflow pipe 40 extends substantially coaxially from the two third inlets 13 of the first filtration chamber 10 to the line of the vertical side of the remaining first filtration chamber spaced apart from each other, and has a height thereof. Its height is 1.5 times the height of the first filtration chamber 10, and its top is wide open.

Inside the second outflow pipe 4o, a long and thin elastic plastic tube 41 is arranged with a porous air stone 42 attached to its lower end, and the lower end of the air stone is attached to the second end. It is arranged almost near the bottom of the outflow pipe 4o of No. 2.

Next, the operation of the purifying apparatus of the present invention will be explained with reference to FIG. 1B.

The main body of the apparatus is submerged in the bottom of an aquarium for aquarium fish, etc., with another tube 45 for supplying air to the air stone 42 attached to the upper end of the tube 41.

When air is fed into the air stone 42 through the tubes 41 and 45 by an air bomb (not shown), the water in the second outflow pipe 40 rises due to the large number of air bubbles blown out from the air stone, and the water in the second outflow pipe 40 rises. an upward flow of water occurs and the water is discharged out of the second outflow tube, or
A suction bomb may be attached directly to the second outflow pipe 40 to cause the water in the second outflow pipe to flow out.

This flow of water causes the first, second and third inlets 1,
Water that needs to be purified in the aquarium flows into the first filtration chamber 10 from 12 and 13.

In the first filtration chamber 10, the fibrous activated carbon stored therein absorbs uneaten fish food, excreta, etc., and colloidal organic floating matter made of them. Additionally, when tap water is used, it also adsorbs limescale contained in that water.

The water that has passed through the lattice-shaped partition plate member 17 in the first filtration chamber flows into the second filtration chamber 20, where ammonia is removed by microorganisms generated in the large number of porous ceramic tubes housed there. It becomes detoxified nitric acid and also
Fine colloidal organic matter that was not adsorbed in the filtration chamber is adsorbed 10 to 100 times faster than carbon fiber.
and is decomposed. As shown in Figure 2, ceramic chil...
The shape of the tube is cylindrical, and this shape allows water to flow inside the cylinder so that it will not become clogged even after long-term use.

Furthermore, the purified water that has passed through the lattice-shaped bottom surface at the bottom of the second filtration chamber and has been purified flows into the water storage section 32 in the flat platform section, and due to the flow in the second outflow pipe 40, the purified water is is flowed out of the outflow pipe.

Experimental example 60x36x30u three aquariums A. B. Fill C with 50 liters of tap water to neutralize limescale, and maintain the water temperature at 25 degrees C using a heater.

Twenty chickens weighing 5.0 grams were housed in each tank.

For water IA, a bottom filtration type purification device shown in Figure 3 is installed in water tank B.
For the water tank C, a Jube-kanka type purification device using a synthetic tree mat shown in Fig. 4 was used, and for the water tank C, the purification device of the present invention was used.

As food, 3 g of commercially available goldfish feed was given daily.

Under the above conditions, the ammonia and nitrite concentrations of the breeding water in the aquarium were measured every two days for 30 days, and the turbidity was also measured.

The results are shown in FIGS. 6 and 7.

FIG. 6 is a graph showing changes in nitrite concentration during the feeding period. A is aquarium A and B using a bottom-type purification device.
1 shows the results for water tank B using the upper filtration type purification device, and water tank C using the purification device 1c of the present invention.

In aquarium C using the device of the present invention, the nitrite concentration is extremely low compared to other aquariums, and is always 0.00% during the rearing period.
It was 1 ppm or less. In contrast, in the other two purifiers A and B, the concentration increased from 24 days to 25 days after the start of the test.
It continues to rise until 1 day, and after 25 days it reaches a maximum of 0.5 to 0.
It reached 6ppm.

After that, the concentration decreased rapidly, but 26 days had passed since the start of the test.

Next, FIG. 7 is a graph showing changes in ammonia concentration during the rearing period, and symbols A, B, and C are the same as in FIG. 6. In tank C, the ammonia concentration is always below 1.5 pp, and it is expected that the ammonia concentration will remain below that value even after 30 days have passed. On the other hand, in aquariums A and B, the values were 5.0 to 7.3 ppm after 16 days.

Furthermore, FIG. 8 shows a table in which the turbidity of breeding water in each tank was measured. In aquarium C using the device of the present invention, it was confirmed that there was no turbidity at all and that each filter medium was not clogged.

(Effects of the Invention) The present invention provides short filtration time and excellent long-term performance by filtering with fibrous activated carbon in the first filtration chamber and filtering with a ceramic tube in the second filtration chamber. It has a filtration (purification) effect and has the effect of requiring no maintenance at all during that period.

Moreover, by providing a wall in the first filtration chamber, a water flow without stagnation can be formed in the filtration chamber, thereby improving the filtration effect.

4

[Brief explanation of drawings]

FIG. 1A is a schematic perspective view of the purification device of the present invention, FIG. 1B is a partially cutaway view of the purification device of the present invention containing fibrous activated carbon and ceramic tubes submerged in a water tank, and FIG. Porous ceramic tube, Figure 3 is a conventional bottom type purifier, Figure 4 is a conventional top filtration type purifier, Figure 5 is a comparison table between INN-like activated carbon and granular activated carbon, and Figure 6 is a comparison table of INN-like activated carbon and granular activated carbon. FIG. 7 is a graph showing the nitrite concentration in the aquarium, FIG. 7 is a graph showing the ammonia concentration in the aquarium, and FIG. 8 is a table showing the turbidity of water in the aquarium. DESCRIPTION OF SYMBOLS 1... III-form activated carbon, 2... Porous ceramic tube, 5... Lid part, 10... First filtration chamber, 11... First inlet, 12... No. 2 inlet, 13... Third inlet, 20... Second filtration chamber, 30... Flat platform portion, 31... First outflow pipe, 32... Water storage section, 40 ...Second outflow pipe.

Claims (3)

[Claims] (1) A first filtration chamber having a plurality of inlets, and a second filtration chamber communicating with the first filtration chamber, the second filtration chamber having an outlet; Fibrous activated carbon is stored in the filtration chamber of
Further, in the purification device, a plurality of cylindrical porous ceramic tubes are housed in the second filtration chamber. (2) In the purification device according to claim 1, a wall is provided in the first filtration chamber, and the water flowing in from the lower inlet of the plurality of inlets is directed toward the upper wall of the first filtration chamber. A purification device that allows the flow to flow upwards. (3) A purification method comprising a step of adsorption using a plurality of cylindrical porous ceramic tubes after an adsorption step using fibrous activated carbon.