KR20010069045A - Bottom Sand for Growing Aquatic Plants and Aquariums for Growing Aquatic Plants Using Bottom Sand - Google Patents

Abstract

PURPOSE: Provided are bottom sand for growing an aquatic plant and an aquarium for growing an aquatic plant using the bottom sand which purifies the water contained in the aquarium. CONSTITUTION: The bottom sand contains a granular sintering agent comprising volcanic ashes as an main ingredient, and binding between granules is broken down when pressurizing it in a depth of 1.0cm with a pressure of 25kg/cm¬2. The aquarium contains the bottom sand on its bottom and a water circulation device. The sintering gent absorbs impurities in the water then filters them.

Description

Bottom Sand for Growing Aquatic Plants and Aquariums for Growing Aquatic Plants Using Bottom Sand}

TECHNICAL FIELD This invention relates to the structure of the bottom sand for nurturing a plant for appreciation in a water tank, and the container for tubular plant growth using the same.

In recent years, hydroponic cultivation is being carried out to cultivate plants in tanks (actually transparent tanks for viewing) and coexist with ornamental fishes as necessary.

In the upbringing of such plants for appreciation, it is essential to circulate and filter the water in order to prevent water turbidity and consequently opacity.

On the other hand, the bottom sand in the tank is also required to exhibit a function as soil for growing plants.

By the way, the technical idea of adopting the bottom sand of the tank which can make the water good filtration action and the favorable upbringing of appreciation plants conventionally has not existed until now.

The present invention focuses on the situation of the prior art as described above, and can provide a constitution of a bottom sand and a container for growing a tubular plant using the same, as shown in FIG. 3, capable of achieving both water purification and good plant growth. The purpose is to.

1 is a cross-sectional view when the sintered product mainly composed of volcanic ash forms a pressure at which the bonding state in the form of particles collapses at a thickness of 1.0 cm;

2 is a graph showing the relationship between the elapsed time and the illuminance change in Example 1;

Fig. 3 is a front view showing a container state according to the present invention in which a bottom sand is laid (a side of discharging water is shown in the circulating pipe, and a side of sucking water from the bottom of the filter is omitted). .

<Explanation of symbols for the main parts of the drawings>

1: sintered material 2: plate giving a pressing force

3: circulation pump and its driving mechanism 4: circulation pipe

5: filter 6: container

In order to solve the above problems, the constitution of the present invention contains a sintered product in the form of a particle composed mainly of volcanic ash, and when the thickness of the sintered product is 1.0 cm, a pressure of 25 kg weight / cm ² or more is applied. At this time, the bottom sand for the growth of tubular plants in the water tank and the bottom sand are arranged on the bottom and the apparatus for water circulation is installed on the basis of the binding force at the extent that the bonding state in the form of particles collapses. It consists of a container for plant growth.

In the sintered product mainly composed of volcanic ash, fine pores are formed on the surface of particles in which volcanic ash, which is fine particles, are bonded by sintering, adsorbs impurities in water, and exerts a filtration effect.

By the way, when the bonding force by sintering is strong, a plant for appreciation cannot enter a root in the said sintered material, or cannot absorb nutrients based on this entry.

For this reason, in the said sintered material, it is essential that the plant regulated in water is a bonding force of the grade which can enter a root.

Therefore, in the present invention, when the bonding force of the sintered product is 1 cm thick, when the weight is 2.5 kg / cm ² or less, smooth growth of the appreciation plant in the water tank can be realized.

The above point is demonstrated based on experiment.

Three tanks, 38cm wide, 24cm long and 30cm high, are equipped with 23 liters of water in each tank, and a bottom filter (Bio filter 45 manufactured by Nisso, Japan) is installed. The bottom sand by the sintered material of volcanic ash was arrange | positioned on this bottom face filter so that it might become 2.5 cm, and water was circulated by the air pump at the rate of 1 liter per minute.

Each of the three baths is called a, b, and c, and the thickness required for the collapse of the bonded state in the form of particles is 2.0 kg by weight / cm, with the thickness of 2.5 cm for the sintered material installed in these baths. ^2, 2.5kg weight / cm ^2, followed by a 3.0kg by weight / cm ^2, was subjected to the cultivation of the paselri and watercress.

The growth situation by these is as described in the following table (However, the weight of the table below is the weight of the stem and leaves excluding the root).

table

As can be seen from the above, with respect to the sintered material containing at least the volcanic ash, as shown in Fig. 1, when the thickness is 1.0 cm, the bonding force is such that it collapses under a pressing force of 2.5 kg weight / cm ² . It turned out that it is possible to fully nurture plants for appreciation in a tank.

This invention makes it a basic structure to contain the sintered material which has a volcanic ash as a main component by a bonding force as mentioned above.

That is, the bottom sand of this invention is comprised by the structure which makes the said sintered material 100%, or the mixture of the said sintered material and another sand, and arrange | positions this bottom sand to a bottom part, and also for water circulation By setting it as the structure provided with the apparatus, as shown in FIG. 3, the container for tubular plant growth of this invention is made.

EMBODIMENT OF THE INVENTION Hereinafter, the Example of this invention is described.

(Example 1)

When the bottom sand is formed by the mixture of the sintered product and the gravel of the volcanic ash of the present invention, the gravel itself is very difficult to filter the water, so that the bottom sand of the present invention is contained at a predetermined ratio or more, thereby providing good filtration. Can work.

Six tanks used for the above experiments were prepared, and 23 liters of water was accommodated in each tank in the same manner as the above experiment, and 0.27 g of methylene blue as a colorant was added, and the bottom filter was laid.

For each of the tanks, after mixing the sintered product with volcanic ash according to the bonding force to collapse the bonded state in the form of particles at a pressure of 2.5kg weight / cm ² in a thickness of 1.0cm, six tanks Relative amounts (%) based on the volume of the sintered product, such as the ratios in the table below, were blended with respect to each other, and the bottom sand caused by the mixture with the gravel was placed at the bottom surface of about 2.5 cm.

table

As in the case of the above experiment, water was circulated by an air pump at a rate of 1 liter per minute, and in each tank, a projection bulb of 100 volts 100 W, on one side with a width of 38 cm, was used for a diameter of 72 mm and a focal point. Irradiate light using a projector with a projection lens of 24 cm in length (Pentex Slide 501 from Asahi Optical Industries, Japan), and measure the illuminance with an illuminometer with a measurement range of 0 to 200,000 lux on the other side. It was.

As a result, as shown in the graph of FIG. 2, the illuminance of each tank changed with time.

In other words, when the sintered product is 0%, the roughness is hardly changed, whereas when the sintered product is 5%, methylene blue is absorbed into the sintered material as the water is circulated, and it is found that it is gradually purified by filtration of water in the tank. As the proportion of the sintered material increases, the filtration and purifying activities also proved to increase.

Thus, when the sintered product of this invention is mixed with gravel, when the relative ratio of a sintered product is 5 volume% or more, it will exhibit a significant filtration effect and also the water purification effect.

(Example 2)

In general, ash contains minute sulfuric acid.

In this case, in the case of sintering after mixing alkali metal or alkaline earth metal carbonate in volcanic ash, sulfuric acid is gradually dissolved in water from the sintered material, and the buffer function can avoid the sudden rise in pH by dissolving the carbonate. This can be exhibited and the pH value in the tank can be maintained at a constant value over a long period of time.

And in order to exhibit neutralization and buffering effect with respect to sulfuric acid, 0.2-1.5 weight% is suitable for the alkali metal carbonate in a sintered compact, and 0.5-1.5 for the alkaline earth metal carbonate. Weight percent is justified.

That is, in the case of the structure of an Example, the upbringing of the favorable plant compatible with the purification | cleaning effect of water can be promoted further by maintaining a reasonable pH value.

As described above, the present invention can be achieved by achieving the essential requirements in the tubular plant, such as water purification and good growth of plants.

In addition, in the container using the bottom sand of the present invention, not only the plants for appreciation but also the animals for appreciation such as tropical fish and fireflies can be grown after the plants coexist, and the appreciation effect can be further enhanced.

Therefore, the present invention exerts enormous contribution to the appreciation and upbringing of not only the appreciation plants in the tank, but also the animals coexisting therewith, and its value is absolute.

Claims (4)

It contains a sintered particle in the form of volcanic ash, and when the thickness is 1.0 cm with respect to the sintered material, when the pressure of 2.5 kg / cm ² or more is applied, the bond state of the particle form collapses. A bottom sand for growing a tubular plant based on arranging a bottom sand based on binding force on a bottom part and installing a device for water circulation. The bottom sand for tubular plant growth according to claim 1, comprising a mixture of sintered material and gravel having a volcanic ash as a main component, and a relative amount of the volume occupied by the sintered material being 5% or more of the total. The bottom sand for tubular plant growth according to claim 1, wherein the sintered product contains 0.2 to 1.5% by weight of an alkali metal carbonate or 0.5 to 2.5% by weight of an alkaline earth metal carbonate. It contains a sintered product in the form of a particle composed mainly of volcanic ash, and the sintered product has a thickness of 1.0 cm. When the pressure of 2.5 kg / cm ² or more is applied, the bond state of the particle form collapses. A container for growing a tubular plant based on arranging a bottom sand based on a bonding force on a bottom part and installing an apparatus for water circulation.