JP2575330B2 - Aquaculture water treatment method and fish and shellfish aquaculture equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Industrial applications]

[0002] The present invention relates to a method for treating culture water and an apparatus for culturing fish and shellfish.

[0003]

[Prior art]

[0004] When cultivating fish and shellfish, it is necessary to keep the bacterial flora in the breeding tank in a good condition.

[0005] That is, it is desirable that an appropriate amount of general bacteria and useful bacteria is present in the breeding tank so that pathogenic bacteria do not propagate.

Conventionally, for example, breeding water supplied to a breeding tank is irradiated with ultraviolet rays or the like to sterilize general bacteria and the like present in the breeding water supplied to the breeding tank, and cultured using the sterilized breeding water. Has been done.

[0007] Recently, in the field of seedling production for fisheries,
A technique has been developed in which useful bacteria are added to breeding water to suppress the propagation of pathogenic bacteria.

[0008] This technique uses an antagonistic microorganism to control a disease, and is controlled by a biocontrol method (biological control method).
The useful bacteria that suppress the growth of pathogenic bacteria and raise an environment suitable for the growth of cultured fish and shellfish are added to the breeding water for aquaculture.

Here, the addition of useful bacteria has been carried out by directly adding the cultured bacteria manually to a breeding tank filled with breeding water.

[0010]

[Problems to be solved by the invention]

[0011] However, when bacteria in the breeding water are sterilized by ultraviolet rays or the like, the bacteria in the breeding water are reduced by sterilization, thereby disturbing the balance of the bacterial flora.
In some cases, the pathogenic bacteria could easily propagate and adversely affect aquaculture.

[0012] In addition, it takes time and effort to add useful bacteria by hand, and addition of useful bacteria is performed at once.
Bacterial flora in the breeding tank tended to be unstable, which could adversely affect aquaculture.

[0013] Accordingly, an object of the present invention is to provide a method for adding a useful bacterium without hassle, stabilizing a bacterial flora in a breeding tank,
An object of the present invention is to provide a method for treating culture water and a fish and shellfish culture apparatus that do not adversely affect the culture.

[0014]

[Means for Solving the Problems]

The means for solving the problems of the present invention are as follows.

First, the breeding water supplied to the breeding tank is sterilized by contacting with ozone to kill the pathogenic organisms and the bacteria that exclude the growth of the useful bacteria to be added. Is supplied to an activated carbon tank having inoculated activated carbon, and after inoculating bacteria are propagated, useful bacteria are added when the breeding water passes through the activated carbon tank, and the cultivation water to which the useful bacteria have been added is placed in the breeding tank. This is a method of cultivating fish and shellfish, wherein the fish and shellfish are supplied and cultured in the breeding tank. Further, after the culture water is sterilized with ozone, the culture water is supplied to an activated carbon tank filled with activated carbon previously inoculated with useful bacteria that suppress the growth of pathogenic bacteria of fish and shellfish, and the culture water is passed through the activated carbon tank. A method for treating culture water, wherein useful bacteria are added.

Second, a feed pipe for supplying breeding water to the breeding tank is provided with a contact tube for bringing ozone into contact with the breeding water and an activated carbon tank made of activated carbon inoculated with useful bacteria. This is a fish and shellfish cultivation device attached so as to pass through an activated carbon tank after passing through a contact tube. In addition, a supply pipe for supplying the culture water, a contact tube for contacting with ozone, and an activated carbon tank filled with activated carbon previously inoculated with useful bacteria that suppress the growth of pathogens of fish and shellfish, the culture water, A fish and shellfish cultivation apparatus, which is attached so as to pass through an activated carbon tank after passing through a contact tube.

Third, breeding water flowing through the supply pipe passes through the contact pipe for contacting the breeding water with ozone and the activated carbon tank made of activated carbon in the supply pipe for supplying breeding water to the breeding tank. This is a fish and shellfish cultivation device in which a bacteria inoculation tube for inoculating useful bacteria is connected to the activated carbon tank while being attached so as to pass through the activated carbon tank later. In addition, a supply pipe for supplying the culture water, a contact tube for contacting with ozone, and an activated carbon tank filled with activated carbon previously inoculated with useful bacteria that suppress the growth of pathogens of fish and shellfish, the culture water, A fish and shellfish cultivation apparatus characterized in that it is attached so as to pass through an activated carbon tank after passing through a contact tube, and a bacteria inoculation tube for inoculating useful bacteria from outside is connected to the activated carbon tank.

Here, the useful bacterium refers to a bacterium that suppresses the growth of pathogenic bacteria and raises an environment suitable for the growth of the cultured fish and shellfish during the cultivation of fish and shellfish.

[0020]

[Action]

The breeding water flowing through the supply pipe is first sterilized by ozone by passing through the contact tube and contacting with ozone.
Oxygen is supplied.

The breeding water sterilized by ozone is then
When passing through the activated carbon tank, useful bacteria inoculated in the activated carbon tank are added.

Here, the useful bacteria added to the activated carbon tank are propagated mainly at the outlet side of the treated water in the activated carbon tank.

[0024] In the activated carbon tank connected to the bacteria inoculation tube, useful bacteria are supplied into the activated carbon tank from the bacteria inoculation tube, and the activated carbon in the activated carbon tank is inoculated with the useful bacteria.

As described above, the breeding water flowing through the supply pipe passes through the activated carbon tank, whereby the useful bacteria are added automatically and continuously, and the breeding water to which the useful bacteria are added is supplied to the breeding tank. You.

In the breeding tank to which the breeding water to which the useful bacteria have been added is supplied, the bacterial flora is maintained in a preferable state, and fish and shellfish are cultured under the environment.

When the breeding water is seawater, the bromine ions in the seawater are oxidized by contact with ozone,
Harmful residual oxidants are formed.

However, the residual oxidant generated in the seawater is removed by raising the breeding water through the activated carbon tank.
Since it is removed immediately after flowing into the activated carbon tank, it does not not only inhibit the growth of the inoculated bacteria but also promotes the growth because a large amount of oxygen is supplied.

[0029]

【Example】

An embodiment of the fish and shellfish cultivation apparatus according to the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic view of an embodiment of a circulating type fish and shellfish cultivation apparatus according to the present invention, and FIG. 2 is an embodiment of a sink type fish and shellfish culturing apparatus according to the present invention. It is a schematic diagram.

The circulating type fish and shellfish cultivation apparatus shown in FIG. 1 comprises a breeding tank 1 for filling seawater as breeding water, an ozonizer 2 for generating ozone, and a contact tube for bringing the ozone generated by the ozonizer 2 into contact with the breeding water. 3. An activated carbon tank 4 for adding useful bacteria to breeding water is provided, and a bacteria inoculation tube 5 for inoculating the activated carbon filled in the activated carbon tank 4 with useful bacteria is connected to the inflow side of the treated water in the activated carbon tank 4. I have.

A supply pipe P1 connects between the breeding tank 1 and the contact pipe 3, and a supply pipe P connects between the contact pipe 3 and the activated carbon tank 4.
2, the activated carbon tank 4 and the breeding tank 1 are connected by a supply pipe P3.

The supply pipe P 1 has one end connected to the bottom of the breeding tub 1, the other end connected to the lower part of the contact tube 3, and the other end connected to the other end of the connection pipe 21 connected to the ozonizer 2. Have been.

The supply pipe P 2 has one end bent in a crank shape connected to the inflow side of the treated water in the contact tube 3, and the other end connected to the inflow side of the treated water in the activated carbon tank 4.

The supply pipe P 3 has one end connected to the lower part of the activated carbon tank 4 and the other end connected to the upper part of the breeding tank 1.

The supply pipes P1, P2 and P3 form a circulation path for circulating and using the breeding water in the breeding tank 1.

Next, the operation of the above-described circulating type fish and shellfish culturing apparatus will be described.

The breeding water of the seawater taken out of the breeding tank 1 flows through the supply pipe P1 and contacts the ozone generated by the ozonizer 2 in the middle of the supply pipe P1 and supplied through the connection pipe 21. In 3, it is sterilized by ozone, while the residual oxidant is generated by contact with ozone.

The breeding water that has been sterilized by ozone in the contact tube 3 and has generated residual oxidant by contact with ozone flows into the upper part of the activated carbon tank 4 through the supply pipe P2.

Here, the activated carbon filled in the activated carbon tank 4 is inoculated with useful bacteria supplied from a bacteria inoculation tube 5.

The breeding water that has flowed into the inflow side of the treated water in the activated carbon tank 4 contains useful bacteria that are mainly propagated on the outlet side of the treated water in the activated carbon tank 4 when passing through the activated carbon inoculated with the useful bacteria. Upon addition, the residual oxidant is removed.

The breeding water to which the useful bacteria have been added and from which the residual oxidant has been removed is supplied to the breeding tank 1 through a supply pipe P3 connected to the outlet side of the treated water in the activated carbon tank 4. .

Thus, the supply pipes P1, P2, P3
The useful water is automatically and continuously added to the breeding water supplied to the breeding tank 1 through the activated carbon tank 4.

Then, in the breeding tank 1 to which the breeding water to which the useful bacteria are added is supplied, the bacterial flora is maintained in a preferable state, and fish and shellfish are cultured.

The breeding apparatus for fish and shellfish of the sink type shown in FIG. 2 is a breeding tank 1 filled with seawater as breeding water and an ozonizer 2 for generating ozone, similarly to the cultivation apparatus for circulating type fish and shellfishes described above. A contact tube 3 for bringing ozone generated by the ozonizer 2 into contact with breeding water; and an activated carbon tank 4 for adding useful bacteria to the breeding water. A bacterium inoculation tube 5 for inoculating useful activated bacteria to the activated carbon is connected, a supply pipe P2 connects between the contact tube 3 and the activated carbon tank 4, and a supply pipe P3 connects between the activated carbon tank 4 and the breeding tank 1. Each is connected.

In the pouring type fish and shellfish cultivation apparatus, breeding water supplied from the outside is supplied to the contact tube 3.
One end of a supply pipe P4 leading to the breeding tank 1 is connected to the breeding tub 1, and one end of an outflow pipe P5 for flowing breeding water in the breeding tub 1 to the outside is connected.

Next, with regard to the operation of the above-mentioned fish-and-shells cultivation apparatus of the floating type, the description of the operation of the same components as those of the circulation-type fish and shell-fish cultivation apparatus is omitted, and the operation of the different parts will be described. .

That is, in the fish-and-fish breeding apparatus of the sink type, when the seawater supplied from outside is fed to the contact tube 3 by the supply pipe P4, the breeding water is supplied to the ozonizer 2 in the middle of the supply pipe P4. And comes into contact with ozone supplied through the connection pipe 21.

After the same operation as that of the circulating-type fish and shellfish culturing apparatus, the breeding water supplied into the breeding tank 1 flows out through the outflow pipe P5.

[0051]

【The invention's effect】

According to the present invention, the addition of useful bacteria does not take much trouble, the bacterial flora in the breeding tank is stabilized, the growth of pathogenic bacteria can be prevented, and the occurrence of fish disease can be prevented.

[Brief description of the drawings]

FIG. 1 is a schematic view of an embodiment of a circulating-type fish and shellfish culturing apparatus according to the present invention.

FIG. 2 is a schematic view of one embodiment of a sink-type fish and shellfish cultivation apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Breeding tank 2 Ozonizer 21 Connecting tube 3 Contact tube 4 Activated carbon tank 5 Bacterial inoculation tube P1-P3 Supply tube P4 Supply tube P5 Outflow tube

Claims (3)

(57) [Claims] After the culture water is sterilized with ozone, it is supplied to an activated carbon tank filled with activated carbon previously inoculated with useful bacteria that suppress the growth of pathogenic bacteria of fish and shellfish, and when passing through the activated carbon tank, A method for treating culture water, wherein useful bacteria are added to the culture water. 2. A feed pipe for supplying aquaculture water, comprising: a contact tube for contacting with ozone; and an activated carbon tank filled with activated carbon pre-inoculated with useful bacteria for suppressing the growth of pathogens of fish and shellfish. A fish and shellfish cultivation apparatus, wherein water is attached so as to pass through an activated carbon tank after passing through a contact tube. 3. An aquaculture system comprising: a contact tube for bringing ozone into contact with a supply pipe for supplying aquaculture water; and an activated carbon tank filled with activated carbon pre-inoculated with useful bacteria for suppressing the growth of pathogens of fish and shellfish. A fish and shellfish cultivation apparatus, wherein water is attached so as to pass through an activated carbon tank after passing through a contact tube, and a bacterial inoculation tube for inoculating useful bacteria from outside is connected to the activated carbon tank.