KR20070068136A - Sea water supplying appratus for fishery farming and sea water supplying method - Google Patents

Abstract

A sea water supplying device for fish farming and a sea water supplying method are provided to stably supply the clean sea water and to secure good sterilization and insect removing effects by supplying the sea water directly electrolyzed, at regular intervals of time. The sea water supplying device(100) for fish farming is composed of a sea water supply unit(110) for feeding the predetermined flow of sea water and an electrolysis unit(130) for generating the electrolytic water by electrolyzing the sea water fed from the sea water supply unit. The electrolysis unit is automatically operated or stopped repeatedly at the pre-set time intervals. An intermediate storing unit(140) temporally stores the sea water passing through the electrolysis unit, before the sea water is supplied to the outside.

Description

SEA WATER SUPPLYING APPRATUS FOR FISHERY FARMING AND SEA WATER SUPPLYING METHOD}

1 is a block diagram schematically showing the configuration of a conventional fish farming seawater supply apparatus,

Figure 2 is a block diagram schematically showing the configuration of a fish farming seawater supply apparatus according to an embodiment of the present invention,

3A to 3C are graphs showing the concentration of electrolyzed water in seawater supplied when operating the fish farming seawater supply apparatus of FIG. 2.

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

100: sea water supply unit 110: sea water supply unit

120: filtration unit 130: electrolysis unit

140: relay storage unit 200: aquaculture tank

The present invention relates to a fish farming seawater supply device and a seawater supply method, and more particularly, to a fish food supply seawater supply device and a seawater supply method for supplying the electrolyzed water to the seawater supplied through electrolysis.

Natural sea water can contain a variety of harmful organisms, pathogens and pathogens, and these harmful organisms can have a devastating effect, especially on farmed fish, which can cause serious social problems when our eating habits eat fish and shellfish. have.

In general, aquaculture farms use various filtration methods to remove foreign matters when seawater is blown, and also UV or ozone treatment to remove harmful organisms contained in natural seawater.

1 is a diagram schematically illustrating a process of performing such a filtration process. Intake of sea water from the onshore farms is first provided with a seawater supply unit 10, such as a pumping facility for drawing seawater to the land, through which seawater is provided. The provided seawater is passed through a filtration unit 20 for filtering foreign matters and various other floats, and then, after the final treatment is performed in the UV treatment unit or ozone treatment unit 30 to kill and sterilize harmful organisms contained in the seawater, and then the marine fish are grown. It is supplied to the water tank 40.

However, these methods do not completely eliminate pathogens and pathogens, which are harmful organisms in natural seawater. In particular, UV or ozone treatments have a problem of economical efficiency. Especially in the case of UV treatment, when UV transmission is weak due to seawater characteristics, sterilization and insecticidal effects are reduced. Therefore, UV lamps are protected after a certain period of time for UV transmission. The work to clean the glass tube should be carried out. In addition, UV rays do not affect fish directly, so they do not show sterilization effects directly on fish.

In addition, in the case of ozone, residual toxicity is a problem and has a disadvantage of affecting the survival of fish.

In addition, in reality, the treatment methods are economic problems but continue to be used in the situation where there is no alternative.

Accordingly, an object of the present invention is to provide a fish farming seawater supply device and a seawater supply method for supplying the treated seawater to increase the sterilization and insecticidal effect of the seawater and at the same time to minimize the impact on the survival of the fish have.

In order to achieve the above object, the present invention provides a seawater supply apparatus for supplying seawater for fish farming, the seawater supply unit for supplying seawater at a predetermined flow rate; It provides a seawater supply device comprising an electrolysis unit for generating electrolytic water by electrolyzing seawater supplied by the seawater supply unit.

Here, the electrolysis unit may be configured to automatically repeat the operation and stop at a predetermined set time interval.

In this case, the electrolytic part may be adjusted so that the ratio between the time of operation and the time of stopping is in the range of 1: 2 to 1: 5. In addition, the seawater passing through the electrolysis unit may further include a relay storage unit temporarily stored before being supplied to the outside. In addition, the electrolysis unit may be controlled to be operated such that the electrolyzed water may be present in the seawater discharged from the relay storage unit to the outside.

The seawater supply device may further include a relay storage unit that is temporarily stored before the seawater passing through the electrolysis unit is supplied to the outside.

In addition, the seawater may further include a pipe, the electrolysis unit may be provided with an electrode fastened to the pipe. In this case, the electrode may include a platinum-based plating electrode.

In addition, the electrolytic water may further include a control unit for controlling the operation of the electrolysis unit to be included in the sea water at a predetermined concentration.

In addition, the filter may further include a filtration unit interposed between the seawater supply unit and the electrolysis unit to filter the seawater supplied from the seawater supply unit.

In addition, to achieve the above object, the present invention provides a method for supplying seawater for fish farming, comprising: providing seawater; Electrolyzing a portion of the seawater provided to include electrolyzed water in the seawater at a predetermined concentration; And it provides a seawater supply method comprising the step of supplying the seawater containing the electrolytic water.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the present invention.

In the present invention, the electrolyzed water generated by electrolysis may have excellent sterilization and insecticidal effects when its concentration is high, but finally, the effect on fish may be significant and may be problematic. The main components of the insecticidal sterilization of electrolyzed water generated by seawater electrolysis are ionization components by sodium hypochlorite generated.

The generation of electrolyzed water is basically determined by the amount of seawater injected with the applied electric power, and the generated electrolyzed water is automatically displayed its concentration by the residual chlorine measuring device, and it is automatically fed back to adjust the electrolyzed water generation concentration if necessary. It may be. The fish farming seawater supply system and method including the control concept can secure safety and economic feasibility, and in particular, has the advantage of preventing fish disease of farmed fish.

The present invention does not use a complicated device such as an ultraviolet system for removing pathogens and worms by generating electrolyzed water and then restoring the electrolyzed water back to natural seawater. Electrolyzed water above a certain concentration can also be prevented from being directly exposed to farmed fish.

Seawater supply apparatus 100 according to an embodiment of the present invention, as shown in Figure 2, seawater supply unit 110 for supplying seawater at a predetermined flow rate, filtration unit 120 for filtering the supplied seawater, The relay storage unit 140 is temporarily stored before the seawater passing through the electrolysis unit 130 and the electrolysis unit 130 to generate the electrolytic water by electrolysis of the filtered seawater is supplied to the external culture tank 200 Include.

In order to operate the electrolysis unit 130, first, it is necessary to set a proper electrolytic water generation concentration according to the amount of electricity and seawater inputted by producing a seawater electrolysis unit.

In general, if the lethal concentration of microorganisms in the seawater with respect to the electrolytic water concentration is 0.3ppm or more, it is known to sufficiently remove pathogens and bacteria, which are harmful organisms in the seawater. The remaining water is allowed to pass through the electrolysis unit 130 as it is.

To this end, the electrolysis unit 130 is provided with a timer and controlled to automatically repeat the operation and stop for the generation of electrolyzed water according to the set value, the seawater having a constant electrolytic water concentration is always supplied to the aquaculture tank 200.

The time during which the seawater is electrolyzed due to the operation of the electrolysis unit 130 is controlled so that the ratio with the time when the seawater is not electrolyzed is 1: 2 to 1: 5. For example, the operation of the electrolysis is 10 to 20 minutes per hour, the remaining 50 to 40 minutes so that the operation of the electrolysis unit 130 is automatically cut so that the natural sea water is supplied through the electrolysis unit 130 as it is do. At the time of supply of electrolytic water, it is preferable to make the said electrolytic water contain in existing seawater in a cycle type.

The electrolysis unit 130 may directly affect the seawater supplied by providing a pair of electrodes fastened inside the pipe (not shown) through which the seawater supplied from the seawater supply unit 110 passes. In this case, the electrode may be formed of a platinum-based plating electrode having high electrolysis efficiency for seawater.

The relay storage unit 140 exists to prevent the electrolyzed water generated by the operation of the electrolysis unit 130 to be directly supplied into the aquaculture tank 200, and to sufficiently secure time for removing harmful organisms in the seawater.

On the other hand, the electrolysis unit 130 may be controlled so that the concentration of the electrolyzed water in the seawater is maintained by the controller (not shown) separately provided instead of the operation and the stop is sequentially repeated by the timer. In this case, the controller may be provided with a sensor (not shown) for measuring the concentration of the electrolyzed water.

3A to 3C illustrate the culture water tank 200 passing through the relay storage unit 140 when the concentration of the electrolyzed water generated by the operation of the electrolysis unit 130 is 0.3 ppm, 0.5 ppm, and 1.0 ppm, respectively. It shows that the concentration of the seawater immediately before being added to is observed.

As shown in FIG. 3A, the input seawater concentration for the case where 0.3 ppm of electrolyzed water is obtained by the operation of the electrolysis unit 130 increases up to 0.08 ppm during the operation of the electrolysis unit 130, but further increases. You can see that it does not This value depends on the capacity of the relay storage 140 and the amount of seawater passing through it. On the other hand, as shown in Figure 3b, it can be seen that the input seawater concentration for the case of 0.5ppm electrolytic water obtained by the operation of the electrolysis unit 130, increases up to 0.4ppm. In addition, it can be seen that the input seawater concentration for the case where 1.0 ppm of electrolyzed water is obtained by the operation of the electrolysis unit 130 increases up to 0.8 ppm.

However, when the electrolyzed water is introduced with periodicity, it is preferable that the seawater having an electrolytic water concentration of 0.0ppm is supplied into the aquaculture tank 200 for a predetermined time. This is because the cultured fish of the culture tank 200 is less affected by the electrolytic water should be exposed to the seawater of the culture tank 200 is not at all electrolytic water at least for a certain period. Therefore, at the concentration of 0.3 ppm to 0.5 ppm, when the electrolysis unit 130 is not operated by the timer, it can be seen that the electrolyte concentration is maintained at 0.0 ppm for a predetermined time (see FIGS. 3A and 3B). .

As shown in FIG. 3C, when 1.0 ppm of electrolytic water is obtained by the operation of the electrolysis unit 130, it can be seen that the portion falling to 0.00 ppm does not appear. Therefore, it can be seen that it is not preferable to produce the electrolyzed water having a concentration of 1.0 ppm or more during the operation of the electrolysis unit 130.

Table 1 below shows the aquaculture tank 200 supplied with electrolyzed electrolyzed water and the aquaculture tank supplied with general seawater for breeding flounder, and included in the seawater flowing into the aquaculture tank and the seawater discharged from the aquaculture tank. This is the result of testing the vibrioviruses.

By treatment water Effluent (units / ml) Influent (units / ml) General Seawater Aquarium 80 60 Electrolysis Aquaculture Tank 40 0 in operation 40 non-operating

As can be seen from Table 1, in the case of aquaculture tank where general seawater is supplied, the inflow water of Vibrio bacteria is 60, and the discharge water is 80. The higher number of Vibrio bacteria in the effluent than the influent is due to the activation of Vibrio bacteria by cultured flounder.

On the other hand, in the case of the electrolysis aquaculture tank, when the electrolysis unit 130 is not operated, the influent of Vibrio bacteria was observed as 40 bodies, and the discharged water was observed in the same number as the influent of 40 bodies. However, when the electrolysis unit 130 is operated, all of the Vibrio bacteria were not found and sterilized in the influent, and 40 individuals were maintained in the discharged water. Accordingly, it can be seen that Vibrio bacteria are not active in the electrolysis culture tank regardless of the presence of fish, and in particular, even when the concentration of the electrolyzed water is maintained at 0.3 ppm when the electrolysis unit 130 is operated. In addition to eliminating harmful organisms, it can be seen that there is no adverse effect on farmed fish.

Table 2 shows the results of the increase rate and the daily growth rate of flounder in the general seawater tank and the electrolysis tank.

Feed General Seawater Aquarium Electrolysis Aquaculture Tank Initial weight (g) 73.9 72.12 Final weight (g) 103.2 112.1 % Increase 40.0 55.5 Feed efficiency (%) 94.8 114.6 Daily growth rate (%) 1.40 1.84 Protein conversion efficiency (%) 1.98 2.39 Survival rate (%) 77.5 87.5

As can be seen in Table 2, the increase rate was higher in the case of the electrolysis culture tank than in the general seawater culture tank. In the macroscopic swimming (movement) of fish, the flounder was higher in the electrolysis tank. In addition, the feed efficiency during the experimental period was higher in the electrolysis culture tank, and the conversion efficiency of the feed was higher in the flounder of the electrolysis culture tank. In the survival rate, the flounder of the electrolysis tank was about 10% higher.

As described above, according to the fish farming seawater supply apparatus and the seawater supply method according to the present invention, in order to stably supply the clean seawater used for the farmed fish in the land farming tank, Compared to the treatment method, it enables safer treatment of seawater, complete control of harmful organisms, minimizes environmental pollution and destruction of ecosystems, and secures price competitiveness in application. Subcultures can be secured.

Claims (11)

In the seawater supply apparatus for supplying the seawater for fish farming, A seawater supply unit for supplying seawater at a predetermined flow rate; Seawater supply apparatus comprising an electrolysis unit for generating electrolytic water by electrolyzing seawater supplied by the seawater supply unit. The method of claim 1, The electrolysis unit is a seawater supply device, characterized in that configured to automatically repeat the operation and stop sequentially at a predetermined time interval. The method of claim 2, The electrolysis unit, seawater supply apparatus characterized in that the ratio between the time of operation and the time of stop is adjusted to the range of 1: 2 to 1: 5. The method according to claim 2 or 3, Seawater supply device further comprises a relay storage unit temporarily stored before the seawater passing through the electrolysis unit is supplied to the outside. The method of claim 4, wherein The electrolysis unit, the seawater supply apparatus characterized in that the operation so that there is a case that the electrolytic water is not included in the seawater discharged to the outside from the relay storage unit. The method of claim 1, Seawater supply device further comprises a relay storage unit temporarily stored before the seawater passing through the electrolysis unit is supplied to the outside. The method of claim 1, Further comprising a pipe for supplying the sea water, The electrolysis unit seawater supply apparatus characterized in that the electrode is fastened to the pipe. The method of claim 7, wherein The electrode is a seawater supply device comprising a platinum-based plating electrode. The method of claim 1, And a control unit for controlling the operation of the electrolysis unit so that the electrolyzed water is contained in the seawater at a predetermined concentration. The method of claim 1, The seawater supply device further comprises a filtration unit interposed between the seawater supply unit and the electrolysis unit to filter the seawater supplied from the seawater supply unit. In the method of supplying seawater for fish farming, Providing sea water; Electrolyzing a portion of the seawater provided to include electrolyzed water in the seawater at a predetermined concentration; And Seawater supply method comprising the step of supplying the seawater containing the electrolyzed water.

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