JPH0824511B2 - Method and apparatus for treating aquaculture water - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a method for treating aquaculture water capable of appropriately cultivating a variety of aquatic products of marine or freshwater seafood, seaweed, etc. without suffering from various diseases. And its equipment.

[0002]

2. Description of the Related Art Conventionally, a variety of aquatic products of marine or freshwater seafood, seaweeds, etc. have been housed in an aquaculture reservoir or a pond formed around the sea or freshwater, and the aquatic product has been stored. The method of culturing organisms in culture water is widely used and well known before the filing of the present application.

[0003]

By the way, in the conventional method for cultivating this kind of aquatic product, since no sterilization treatment of the aquatic water is performed, the aquatic product during cultivation is propagated with pathogenic bacteria due to contamination of water quality, Various illnesses occurred frequently, resulting in death. Therefore, in order to solve this problem, various chemicals were administered to the culture water to prevent the occurrence of pathogenic bacteria. However, if the administration of the drug or the like to the aquaculture water is repeated many times as described above, the dissolved drug will be accumulated in the body of the aquatic product and contaminated, resulting in the adverse effect that it cannot be used for food. . on the other hand,
In order to improve the productivity of aquaculture of aquatic products, a method of heating the aquaculture water by indirect heat exchange of hot water obtained by a boiler or sterilizing the aquaculture water using an ultraviolet sterilization lamp is tried. However, such a method requires high facility costs and maintenance costs and cannot be generally used. Therefore, when aquaculture of future aquatic products is provided, it is possible to obtain a large amount of sterilized aquaculture water by a simple method at a low cost and without using indirect heat exchange action such as drug administration or boiler. This is not only one of the important requirements for aquaculture of aquatic products, but it is necessary to always control the temperature of the aquaculture water to a temperature suitable for aquaculture of aquatic products and the aquaculture water itself is sufficient for the aquatic products to inhabit. The fact that it contains oxygen is also an important issue.

According to the present invention, a simple heat sterilization treatment means for directly bringing the raw water flowing down into direct contact with the combustion gas rising in the flame,
The purpose is to obtain a method for treating aquaculture water and a device therefor for instantly mass-producing a large amount of sterilized aquaculture water without using any drug or indirect heating means. The sterilized heated water is further sterilized in the heat retention sterilization tank, and the heated water is brought into direct contact with the circulating air to perform cooling and aeration at the same time. It is an object of the present invention to provide a method for treating aquaculture water and an apparatus therefor capable of supplementing a large amount of oxygen.

[0005]

In order to achieve the above object, in the method for treating aquaculture water of the present invention, the raw water flowing down is directly contacted with the combustion gas to be flamed, and heated.
It is the culture water that has been sterilized by heating.

The heated water obtained by heating is once stored in a heat-retaining sterilization tank and further sterilized. In addition, the heated water obtained by heating is flown down so as to come into direct contact with the circulating air and aerated with air cooling.

Further, in the aquaculture water treatment apparatus of the present invention, the heat exchange chamber provided with the sprinkler and the heat exchange layer in the upper stage of the main body and the combustion chamber facing the combustion port of the burner in the lower stage are three-dimensional. The water heat treatment device that is arranged in a special manner and a heat retaining sterilization tank whose periphery is heat treated are connected through a water pipe.

Further, a water heat treatment apparatus in which a heat exchange chamber having a water sprinkler and a heat exchange layer in the upper stage of the main body and a combustion chamber facing the combustion port of the burner in the lower stage are three-dimensionally arranged, and the main body A cooling chamber having a sprinkler and a heat exchange layer in the upper part of the inside is connected via a water pipe to an air-cooling aerating device having an aeration chamber facing the blower port of a blower in the lower part.

Further, a heat-retaining sterilization tank is provided between the water heat treatment device and the air-cooling aeration device.

In addition, the water supply side of the heat retention sterilization tank disposed between the water heating treatment device and the air cooling aeration device is the combustion chamber of the water heating treatment device, and the drain side is the sprinkler of the air cooling aeration device. It is connected.

[0011]

In FIG. 1, raw water (tap water, well water, reservoir water, seawater, etc.) is sprayed by the sprinkler 5 onto the heat exchange layer 3 provided in the heat exchange chamber 4 at the same time as the burner 9 is sprayed. The fuel cell is operated to eject the combustion gas from the combustion port 10 into the combustion chamber 8. Then, after the raw water uniformly flows down through the heat exchange layer 3 while twisting and bending, the raw water passes through the combustion chamber 8 and drops downward, and the combustion gas flows from the combustion chamber 8 in the reverse direction of the raw water. The heat exchange layer 3 is flamed in an even state, and finally discharged from the discharge port 15 of the water heat treatment apparatus 1 to the outside.
Therefore, the raw water flowing downwards from above and the combustion gas burning upwards from below are in direct contact with each other several times in the process of flowing down and flames, and become instantaneous heated water for sterilization treatment. The heat-sterilized water in the aseptic state is discharged from the water outlet 11 and supplied to an appropriate place through the water pipe 12 and the three-way valve 13 to be used as aquaculture water for aquatic products.

In FIG. 2, the water heat treatment apparatus 1 of FIG.
The heated water sterilized by heat is supplied to the heat-retaining sterilization tank 16 whose surroundings are kept warm by the heat-retaining material 17 through the water pipe 12 and the three-way valve 13, and at the same time stored in a heat-retaining state for a certain period of time. Therefore, even when the temperature of the heating water supplied from the water heat treatment apparatus 1 into the heat retention sterilization tank 16 is relatively low (for example, around 50 ° C.), the heat retention action for a certain period of time further improves the heat treatment. A sterilization effect is achieved. That is,
It is known that the aquatic bacterium, which is the pathogen of the mildew disease, stops its growth at a water temperature of 20 ° C. or higher and the occurrence of the mildew disease is drastically reduced. Therefore, the water temperature of the heated water obtained by the method of the present invention is Even if the temperature is about 50 ° C., maintaining the heat-retaining state in the heat-retaining sterilization tank 16 makes it difficult for most pathogenic bacteria to survive. Therefore, the heat-treated water that has been sterilized in the heat retention sterilization tank 16 is a water product (for example, marine or freshwater seafood or seagrass) from the drain pipe 19.
Is supplied as aquaculture water for aquaculture.

In FIG. 3, the water heat treatment apparatus 1 of FIG.
The heated water that has been sterilized by heating passes through the water pipe 12, the three-way valve 13, and the pump 31, and the sprinkler 24 of the air-cooling aeration device 20.
And is sprayed onto the heat exchange layer 22 in an equal amount. By the way, in the sprinkling state as described above, the blower 26
The air blown by the operation of is vigorously jetted into the aeration chamber 25, and then the air flows through the heat exchange layer 22 and the cooling chamber 23 so as to be discharged to the outside of the device 20. The flowing heated water and the air flowing upward are contacted with each other several times in the process of passing through the cooling chamber 23, the heat exchange layer 22 and the aeration chamber 25 to be rapidly cooled and aerated at the same time. The low temperature aquaculture water containing oxygen is supplied to the aquaculture site as appropriate. Therefore, according to the aquaculture water treatment apparatus shown in FIG. 3, the water temperature of the heated water can be set to the appropriate water temperature for aquaculture of the aquatic product (for example, 15 ° C. to 20 ° C.) by simply adjusting the air blowing amount. At the same time, the heated water obtained in the water heat treatment apparatus 1 has a dissolved oxygen content of, for example, 4.5 to 5 due to the direct contact heating action with the combustion gas.
Even if it is reduced to about 6.5 mg / L, the amount of dissolved oxygen in the raw water, for example, 7.5 due to the air-cooling aeration action of the air-cooling aeration device 20.
Oxygen is automatically replenished so that the amount can be increased up to about 9.5 mg / L. Therefore, when used as aquaculture water, the aquaculture work can be achieved by promoting the inhabitation of aquatic products.

In FIG. 4, the water heat treatment apparatus 1 of FIG.
The heated water sterilized by heating is supplied to the heat-retaining sterilization tank 16 and further sterilized while being kept in a heat-retaining state for a certain time in the heat-retaining sterilization tank 16. Then, the sterilized heat-treated water is supplied to the air-cooling aerator 20,
The air-cooled aeration device 20 treats aquaculture water having a proper water temperature and a proper dissolved oxygen amount. Therefore, according to the treatment apparatus for aquaculture water treated in FIG. 4, even if the temperature of the heated water obtained by the water heating treatment apparatus 1 is relatively low, the heat-retaining sterilization tank 16 is sufficiently sterilized. As a result, it is possible to obtain the optimum aquaculture water that has a proper water temperature and has an appropriate amount of oxygen dissolved therein.

[0015]

[Examples] In the example shown in FIG. 1, raw water (tap water, well water, water in a retaining basin, seawater, etc.) that flows down is directly contacted with a combustion gas for heat sterilization to obtain a water product, for example, ocean. A first aquaculture water treatment device capable of continuously mass-producing sterile aquaculture water used for aquaculture of various types of aquatic products such as natural or freshwater seafood or seaweed
The aquaculture water treatment apparatus according to the first embodiment is constituted by a water heating treatment apparatus 1 described below. That is, a heat-resistant heat exchange layer 3 made of a ceramic material, a metal material, or the like is disposed in an upper position of a main body 2 having an arbitrary cross-section with a hollow inside, and a heat exchange chamber 4 is defined in the upper stage of the main body 2. While being formed, a water sprinkler 5 is disposed above the heat exchange chamber 4. The water sprinkler 5 is connected to the tip end side of a water supply pipe 6 provided with a pump 7 on the way. The lower stage of the main body 2 is formed in a hollow combustion chamber 8. The burner 9 is disposed on one side of the main combustion chamber 8 so that the burner 9 can be detached, and the combustion port 10 of the burner 9 is placed inside the combustion chamber 8. I have it. The water outlet 11 opened at the bottom of the main body 2 is connected to a water pipe 12 provided with a three-way valve 13 in the middle, and a high-temperature heat sterilization state is discharged from the water outlet 11 by the automatic switching operation of the three-way valve 13. Supply the aquaculture water of
Alternatively, when the water temperature of the aquaculture water is lower than a predetermined temperature (for example, 50 ° C.), it is drained to the outside through the drain pipe 14. An exhaust port 15 for exhaust gas of the combustion gas, which has become low in temperature, is opened at the top of the main body 2.

As shown in FIG. 2, the heated water obtained by the water heat treatment apparatus 1 shown in FIG.
The apparatus for treating aquaculture water according to the second embodiment, which is capable of continuously mass-producing and further sterilizing the culture water after being stored in It is composed of a water heat treatment apparatus 1 and a heat retention sterilization tank 16 of one embodiment. Therefore, the structure of the water heat treatment apparatus 1 is completely the same as that of the first embodiment, and therefore the description thereof will be omitted, and the connection structure between the heat retention sterilization tank 16 and the water heat treatment apparatus 1 will be described. The heat-retaining sterilization tank 16 is such that the periphery thereof is surrounded by an appropriate heat-retaining material 17, and the heated water contained therein is maintained under a heat-retaining state to further enhance the sterilization effect. The heat-retaining sterilization tank 16 is substantially sealed by a lid 18 made of a heat-insulating material. Therefore, if the water temperature of the heated water stored in the heat-retaining sterilization tank 16 can be maintained at a heat-retaining state of about 50 ° C., the growth of aquatic bacteria, which are the pathogens of the fungus mold, at 20 ° C. or above Since it is stopped, sterile aquaculture water can be easily mass-produced. One end is connected to the water outlet 11 of the water heat treatment apparatus 1, and the other end of the water passage 12 provided with a three-way valve 13 in the middle of the water heat treatment apparatus 1 penetrates the lid 18 and is inserted into the heat sterilization tank 16 for opening. A drain pipe 19 of sterilized aquaculture water is connected to one side of the lower portion of the heat sterilization tank 16.

In the apparatus shown in FIG. 3, the heated water obtained by the water heat treatment apparatus 1 shown in FIG.
No. 0 and cooled to an appropriate aquaculture water temperature, and at the same time, aquaculture water containing a sufficient amount of dissolved oxygen reduced in the water heat treatment apparatus 1 to produce aquaculture water having sufficient oxygen for inhabiting aquatic products can be mass produced. The aquaculture water treatment apparatus of the third embodiment comprises the water heating treatment apparatus 1 and the air-cooling aeration apparatus 20 of the first embodiment shown in FIG. Therefore, the structure of the water heat treatment apparatus 1 is exactly the same as that of the first embodiment, and therefore the description of the structure is omitted, and the connection configuration of the air-cooling aeration apparatus 20 and the water heat treatment apparatus 1 will be described. In the air-cooling aeration device 20, a heat exchange layer 22 made of a ceramic material or a metal material is disposed at an upper stage position in a main body 21 having an internal cavity and having an arbitrary cross section, and a cooling chamber 23 is provided in the upper stage of the main body 21. And the upper portion of the cooling chamber 23, the water pipe 12 of the water heat treatment apparatus 1 is formed.
A water sprinkler 24 having the tip end thereof connected via a pump 31 is provided. A lower stage of the main body 21 is formed in an empty aeration chamber 25, and a blower 26 is detachably attached to one side of the aeration chamber 25 so that a blower port 27 of the blower 26 faces the aeration chamber 25. A water supply pipe 29 for supplying treated water to an appropriate place is connected to a water outlet 28 opened at the bottom of the main body 21, and an exhaust port 3 is provided at the top of the main body 21.
It is configured by opening 0. Therefore, according to the aquaculture water treatment apparatus shown in the third embodiment, even if the heated water obtained by the water heating treatment apparatus 1 is high temperature sterilized water, the heat exchange action in the cooling chamber 23 is performed. Therefore, the water temperature can be adjusted so that the water temperature is appropriate for aquaculture (for example, 15 ° C. to 20 ° C.), or the amount of dissolved oxygen decreased in the water heat treatment apparatus 1, for example, about 4.5 to 6.5 mg / L is aerated. Dissolved oxygen amount of raw water, for example, 7.5 to 9.5 mg / L
It can be replenished to a certain level to make it optimal as aquaculture water for aquatic products.

FIG. 4 shows a water heat treatment apparatus 1
The heat-retaining sterilization layer 16 is disposed between the air-cooling and aerating device 20 and the high-temperature or low-temperature aseptic heated water obtained by the water heat treatment device 1 is further sterilized under a heat-retaining state, An aquaculture water treatment device capable of adjusting the obtained treated water in the air-cooling aeration device 20 so as to reach the optimum aquaculture water temperature and mass-producing the aquaculture water containing the dissolved oxygen amount necessary for inhabiting aquatic products. 4 shows a fourth embodiment of the present invention, in which the water heat treatment apparatus 1 and the heat retention sterilization tank 16 are connected by a water pipe 12 equipped with a three-way valve 13, and the heat retention sterilization tank 16 and the air-cooled aeration apparatus 20 are connected. , One end is connected to the heat retention sterilization tank 16, the other side is connected to the sprinkler 24 of the air-cooling aeration device 20, and is further connected by a water pipe 32 in which a pump 33 is provided.

[0019]

Since the present invention has the method and apparatus described above, it has the following effects. The raw water that flows down is directly contacted with the combustion gas that rises to obtain heated water, so the heated water becomes completely sterilized and can be effectively used as aquaculture water for aquatic products. . Then, since the heated water obtained by the water heat treatment device was stored in the heat-retaining sterilization tank through the water passage to maintain the heat-retention state for a predetermined time, even when the heated water temperature was relatively low, It is possible to further promote the sterilization effect to prevent the occurrence of mold fungus and the like, and to effectively provide the aquatic product as aquaculture water.
Moreover, the sterilized heated water treated in the water heat treatment device or the heat-retaining sterilization tank is supplied to the air-cooling aeration device and aerated by air-cooling. Permitting that the water temperature can be adjusted and controlled optimally for aquaculture, the dissolved oxygen content of the heated water can be replenished to the level of the dissolved oxygen content of the raw water, making the aquaculture of aquatic products more effective. The device can mass-produce useful aquaculture water in a short time and provide it. The table below shows an example of the bacterial test results.

[Table 1]

[Brief description of drawings]

FIG. 1 is a front view of an aquaculture water treatment device according to a first embodiment with a part cut away and a main part broken.

FIG. 2 is a front view of the aquaculture water treatment device according to the second embodiment with a part cut away and a main part broken.

FIG. 3 is a front view of the aquaculture water treatment device according to the third embodiment with a part cut away and a main part broken.

FIG. 4 is a front view of the aquaculture water treatment device according to the fourth embodiment with a part cut away and a main part broken.

[Explanation of symbols]

 1 Water Heat Treatment Device 2 Main Body 3 Heat Exchange Layer 4 Combustion Exchange Room 5 Sprinkler 8 Combustion Chamber 9 Burner 10 Combustion Port 12 Water Pipe 16 Heat-Retaining Sterilizer 17 Heat-Retaining Material 20 Air-cooling Aerator 21 Main Body 22 Heat-Exchange Layer 23 Cooling Room 24 Sprinkler 25 Aeration chamber 26 Blower 27 Blower

Claims (7)

[Claims] 1. A method for treating aquaculture water, wherein the raw water that flows down is directly brought into contact with a combustion gas that is to be heated and heated to obtain heat-sterilized culture water. 2. Aquaculture water characterized in that the raw water flowing down is directly brought into contact with heating combustion gas for heating, and the resulting heated water is once stored in a heat retention sterilization tank and sterilized. Processing method. 3. An aquaculture characterized by air-cooling and aeration, wherein the raw water flowing down is directly brought into contact with a combustion gas that has risen to heat it, and the resulting heated water is allowed to flow down so as to come into direct contact with the circulating air. Water treatment method. 4. A water heat treatment device in which a heat exchange chamber having a water sprinkler and a heat exchange layer is provided in an upper stage of the main body, and a combustion chamber facing a combustion port of a burner is three-dimensionally disposed in a lower stage, and a surrounding area. An aquaculture water treatment device, characterized in that it is connected to a heat-retaining sterilization tank that has been heat-insulated via a water pipe. 5. A water heat treatment apparatus in which a heat exchange chamber having a water sprinkler and a heat exchange layer provided in an upper stage of the main body and a combustion chamber having a combustion port of a burner in a lower stage are three-dimensionally arranged, and a main body. An aquaculture characterized by connecting a cooling chamber with a sprinkler and a heat exchange layer in the upper part of the inside to an air-cooling aeration device with an aeration chamber facing the blower opening of the blower through a water pipe. Water treatment equipment. 6. The treatment apparatus for aquaculture water according to claim 5, wherein a heat-retaining sterilization tank is provided between the water heating treatment apparatus and the air-cooling aeration apparatus. 7. The water supply side of the heat retention sterilization tank disposed between the water heating treatment device and the air cooling aeration device is connected to the combustion chamber of the water heating treatment device, and the drain side is connected to the sprinkler of the air cooling aeration device. The aquaculture water treatment apparatus according to claim 5 or 6, wherein