JP4417872B2 - Firefly breeding system - Google Patents

Description

  The present invention relates to a firefly larva breeding container that can grow fireflies in the larva stage from egg hatching to adult larvae and can appreciate the breeding situation.

  It is known that firefly larvae grow underwater in the water using shellfish such as river cormorants as nutrients, and then grow from the water to the land.

  In the system for growing fireflies, a bed soil filter medium for breeding river bream and raising firefly larvae, and a bed soil filter medium for expanding water from a water supply pipe capable of producing water inside the bed soil filter medium. And a land portion where firefly larvae can crawl up are provided in each container, and the inside of the floor soil filter medium is provided, and a water supply pipe is provided which communicates outside the container and leaches out water. However, in the land, usually, consideration is given to the above-mentioned climbing and further growth of firefly larvae by growing moss and algae.

  Although the water quality is adjusted by removing the organic matter of the water supplied in the system, it is preferable that aerobic bacteria can be sufficiently propagated in the bed soil filter medium for the removal of the organic matter.

  However, in the conventional firefly breeding system, there is no idea that the river ridge can be grown in a safe state, and a configuration corresponding to such a request has not been proposed so far.

JP-A-8-3224828 JP 2001-178310 A JP 2001-24278 A JP 2003-225035 A Japanese Patent Laid-Open No. 2003-210068 JP 2004-222704 A

  An object of the present invention is to provide a configuration of a firefly growing system in which aerobic bacteria can sufficiently propagate in a bed soil filter medium and activity can be secured.

In order to solve the above problems, a bed soil filter medium for breeding river bream and raising firefly larvae, and a land portion where firefly larvae can crawl up are provided in the container, respectively. In a firefly breeding system that has a water supply pipe that penetrates the inside and communicates with the outside of the container and that can be leached out of water, an oxygen storage device or an oxygen generator for water flowing through the water supply pipe The oxygen gas supplied from the oxygen storage device or oxygen generator is dissolved by the device, the uppermost layer of the bed soil filter medium is made of silica sand and crushed stone, the intermediate layer is made of sand, and the water supply pipe is buried. It consists of a firefly breeding system with the lower layer as sintered volcanic ash clay .

  By supplying oxygen-dissolved water to the bed soil filter medium, the aerobic bacteria in the filter medium are fully propagated, the activity for removing and decomposing organic matter is enhanced, and the riverbed is in a stable state Can increase the breeding of the fireflies, thereby ensuring the sufficient growth of fireflies and increasing the degree of firefly growth in the container per unit area.

FIG. 1 shows a typical embodiment of the present invention, in which a water supply pipe 2 is provided inside a bed soil filter medium in communication with the outside of the container.
However, the water supply pipe supplies water to the container 1 and then discharges it as it is, and feeds back water from the water outlet of the container 1 through the circulation pump 5 and supplies water from the inlet side of the container 1. It is possible to adopt both of the cases, but the latter is often adopted in consideration of economic efficiency (in FIG. 1, the part to be fed back is cut and displayed, and the case of the discharge and the case of the discharge It is shown that both feedback and feedback are possible.)
In addition, although the water supply pipe 2 has leached water through the leaching hole 21, it is supported by a supporting member 22 having normal elasticity.

  The bed soil filter medium 3 itself has a filtering function and provides a place for aerobic bacteria to grow. As described above, when ammonia is changed from nitrous acid to nitric acid by nitrifying bacteria, nitrogen is changed. The acidification of water due to the nitrification is preferably prevented and alkalized.

  The bed soil filter medium 3 contains all of quartz sand and crushed stone 31, dredged sand 32, and volcanic ash clay sintered granular material 33. As mentioned above, it contributes to neutralizing the nitric acid changed by nitrifying bacteria to make it weakly alkaline, and the volcanic ash clay 33 has fine gaps inside it, making it inhabited by aerobic bacteria. It fits.

  The volcanic ash clay granular material 33 refers to a material that is granulated by sintering the volcanic ash earth, but the material is made into a mud by adding water to the volcanic ash earth, It can be manufactured by evaporating water while heating at 100 ° C. or higher while in a moving state such as a rotating state or a swinging state.

As shown in FIG. 2 , the top layer of the bed soil filter material 3 is made of silica sand and crushed stone 31, the intermediate layer is made of cinnabar sand 32, and the bottom layer in which the water supply pipe 2 is embedded is volcanic ash soil. It is characterized by being a sintered granular material 33 .

By示床earth filter medium 3 shown in this Figure 2, upon passing through the decomposition of aerobic bacteria which inhabit the lowermost ash Doyaki sintered granules 33, a weak alkali for nitrate was changed in coral sand 32 As a result, it became possible to supply purified water to the quartz sand located in the uppermost layer and the riverbed inhabiting the crushed stone 31.

In the container 1, a land portion 4 is provided separately from the bed soil filter medium 3 for the firefly larvae to crawl up. At the stage of firefly growth, the water calculated from the water supply pipe 2 is supplied to the land portion 4. It is in a state that maintains the water surface in the midway region.

Based on such a firefly growing system, in the present invention, as shown in FIG. 1, the oxygen supplied from the oxygen storage device or the oxygen generator is dissolved in the supplied circulating water. It is characterized by being.
As the oxygen storage device 6, an oxygen cylinder can be cited as a typical example, and as the oxygen generation device 6, an electrolysis device for water can be cited as a typical example (in FIG. 1, oxygen by an oxygen cylinder) Although the storage device 6 is illustrated, a similar function can be generated by disposing the oxygen generation device 6 using an electrolysis device in the same position, for example.

When water in which oxygen is dissolved rises in the bed soil filter medium 3 in sequence, aerobic bacteria that inhabit the bed soil filter medium 3 propagate by inhaling the oxygen and remove organic substances in the water. It is possible to contribute sufficiently.
That is, further growth of the riverbed and sufficient growth of fireflies can be realized by increasing the biochemical purification function by the aerobic bacteria in the bed soil filter medium 3.

  According to the inventor's experience, when the firefly growing in the container 1 maintaining a floor area of 10 square meters or more is supplied in a state dissolved in circulating water from a 5-liter oxygen cylinder 6 per day, It has been confirmed that the amount of cultivated Kawamata is about twice that of the case where oxygen is not supplied.

  Therefore, even if the supply amount of oxygen is smaller than the above case, the oxygen dissolved in the circulating water is sequentially supplied into the bed soil filter medium 3 to promote the activity of aerobic bacteria, and further the safe propagation of the riverbed Can be expected.

In the action of the aerobic bacteria in the bed filter medium 3, carbon in the organic matter changes to carbon dioxide (CO ₂ ) and nitrogen changes to ammonia (NH ₃ ), but ammonia is usually once as an aerobic nitrifying bacterium. After changing to nitrous acid, it will further change to nitric acid.
The oxygen dissolved in the water in such a process is consumed in the bed soil filter medium 3, and in the water located on the upper side in the bed soil filter medium 3, the amount of dissolved oxygen may not be sufficient. .

In consideration of this point, in the embodiment shown in FIG. 1, not only the bed soil filter medium 3 is purified by water in which oxygen is dissolved, but also above the bed soil filter medium 3 through a pipe diverted from the water supply pipe 2. In addition, by dropping shower water in which oxygen is dissolved, a large amount of oxygen is dissolved in the water stored on the upper side of the bed soil filter medium 3, so that the bed soil filter medium is also stored in the water stored on the upper side. The water on the upper side of No. 3 is also purified, allowing further breeding of the riverbed.
Instead of the above embodiment, it is possible to adopt an embodiment in which oxygen generated from an oxygen storage device or an oxygen generator is shunted and supplied into the container from the upper surface of the container by an air pump. In the function of purifying water, the embodiment as shown in FIG. 1 is superior.

In order to supply and dissolve oxygen in the water circulating from the oxygen storage device or the oxygen generator 6, as shown in FIG. 1, oxygen is directly introduced into the water supply pipe 2 from the oxygen storage device or the oxygen generator. It is not only the structure that erupts .

That is, as in the embodiment shown in FIG. 3, the embodiment in which the water circulated by the pressurizing pump 5 and the oxygen supplied from the oxygen storage device or the oxygen generator 6 are coexisted in the pressurizing chamber 7 is also used. (Also, FIG. 3 shows an oxygen storage device or an oxygen storage device using an oxygen cylinder as the oxygen generation device 6).

In the case of the said Example , the oxygen which ejected from the cylinder is excellent in the point which can be dissolved in circulating water, without forming a bubble.

  The present invention can be widely used in the field of firefly growing industry.

It is a sectional side view which shows basic embodiment of this invention. It is sectional drawing which shows a bed soil filter medium structure. It is side sectional drawing which shows the Example which dissolves the oxygen which ejects from an oxygen cylinder in water.

DESCRIPTION OF SYMBOLS 1 Container 2 Water supply pipe 21 Leaching hole 22 Support member 3 Bed soil filter material 31 Silica sand and crushed stone 32 Sand sand 33 Volcanic ash earth sintered granular material 34 Non-crushed stone 4 Land part 5 Pressure pump 6 Oxygen storage apparatus or oxygen generation Equipment 7 Pressurization chamber 8 External filter 9 Filter for shower water

Claims (8)

The floor soil filter medium for breeding the river bream and raising the firefly larvae, and the land part where the firefly larvae can crawl up are provided in the container, and penetrate the interior of the floor soil filter medium, In the firefly breeding system that is provided outside the vessel and has a water supply pipe that can leach water, the oxygen storage device or the oxygen generator is used for the water flowing through the water supply pipe. Oxygen gas supplied from the oxygen generator is dissolved, the uppermost layer of the bed soil filter medium is made of silica sand and crushed stone, the intermediate layer is made of dredged sand, and the lowermost layer in which the water supply pipe is embedded is volcanic ash clay granular The firefly breeding system that is used as the body . 2. The firefly growing system according to claim 1, wherein the oxygen storage device is an oxygen cylinder.   The firefly growing system according to claim 1, wherein the oxygen generator is an electrolyzer for water. From the outlet side of the water container in the water supply pipes, the inlet side via a circulating pump feeding back the water, and firefly development according to claim 1, characterized in that water is supplied from the inlet side of the container system. The oxygen dissolved water, after then from the water supply pipe min flow, firefly growth apparatus according to claim 1, characterized in that dropped from the upper side of the bed soil medium for Semisulcospira development.   2. The firefly growing system according to claim 1, wherein oxygen generated from the oxygen storage device or the oxygen generation device is diverted and supplied into the container from the upper surface of the container by an air pump. The oxygen is dissolved in water by coexisting water supplied to the water supply pipe and oxygen supplied from the oxygen storage device or the oxygen generator in the pressurized chamber. Firefly breeding system. 2. The firefly growing system according to claim 1, wherein the bed soil filter medium contains all of quartz sand, crushed stone, cinnabar sand, and sintered volcanic ash clay particles.

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