KR101642663B1 - Hygienic aquaculture tank system - Google Patents

Hygienic aquaculture tank system Download PDF

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KR101642663B1
KR101642663B1 KR1020150103598A KR20150103598A KR101642663B1 KR 101642663 B1 KR101642663 B1 KR 101642663B1 KR 1020150103598 A KR1020150103598 A KR 1020150103598A KR 20150103598 A KR20150103598 A KR 20150103598A KR 101642663 B1 KR101642663 B1 KR 101642663B1
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South Korea
Prior art keywords
breeding
water
tank
sanitary
filter
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KR1020150103598A
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Korean (ko)
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강봉조
김문관
박범희
신동혁
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제주특별자치도(제주특별자치도해양수산연구원장)
명선해양산업 주식회사
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/003—Aquaria; Terraria
    • A01K63/006—Accessories for aquaria or terraria
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
    • A01K63/045—Filters for aquaria
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81—Aquaculture, e.g. of fish

Abstract

The present invention relates to a sanitary breeding tank system for an aquafarm. The present invention provides a sanitary breeding tank system characterized by including: a water storage tank which has a floor of a certain area and outer walls and obtains breeding raw water for aquaculture from nature and in which the breeding raw water can be accommodated; a drum filter connected to the water storage tank or an ultraviolet sterilizer through a pipe to remove floating foreign substances in the breeding raw water, thus supplying the breeding raw water; an ultraviolet sterilizer connected to one side of the drum filter or the water storage tank through a pipe to sterilize the breeding raw water and supply the sterilized breeding raw water as breeding water; and an FRP tank which is connected to one side of the ultraviolet sterilizer or one side of the drum filter through a pipe and has a floor of a certain area and outer walls and in which the breeding water and aquafarm fishes can be accommodated. Since mortality of aquafarm fishes is lowered by fundamentally blocking causes of diseases which may be introduced from nature, the present invention can provide a system capable of performing efficient farming which is safe from disease and has low mortality.

Description

[0001] The present invention relates to a hygienic aquaculture tank system,

The present invention relates to a sanitary breeding tank system, and more particularly, to a sanitary breeding tank system, including a water tank for storing breeding stock water, a drum filter for removing suspended debris in the breeding stock water, an ultraviolet sterilizer for sterilizing the breeding stock, And an FRP water tank capable of accommodating aquaculture organisms, and capable of blocking the infestation and onset of the blue-green organisms caused by pathogens contained in the breeding stock.

The methods of fish culture include nail form, exponential form, cage form and excellent form. Aquaculture Nail Aquaculture is a method of cultivating aquatic life after storing water by making it into a paddy field or a coastal area. The debris such as excreta produced in the aquaculture process is decomposed by nitrifying bacteria in the bottom layer and the dissolved oxygen in the water is supplied from the air through the surface of the water or supplied by aeration or aeration. This type of production method has a low production efficiency depending on the size of the production and the quantity of the cultivation.

Exponential style is a method that has been widely used in the production of inland water, and replenishes the amount of water that is decreased by evaporation etc. so that the quantity of the water is kept constant. It can supply more breeding stock as needed, such as breeding density, water quality and disease management, but it maintains a certain quantity according to the capacity of the breeding ground. In addition, feces and feed residue of aquaculture are treated by the purifying bacteria that occur in the breeding ground. In many cases, the speed of treatment by these bacteria does not follow the rate of discarded organic matter, so the water quality is often deteriorated rapidly. Therefore, the concentration of dissolved oxygen, ammonia, nitrite, etc. should be controlled continuously in the breeding water and care should be taken not to overfeed the feed.

The cage, which is cultivated by installing a certain size net in the river or the sea, is mainly made in the offshore of the inner bay, and the water inside and outside the cage is continuously exchanged through the net, so that it can be cultured at high density compared to the small facility. However, there is a great risk of causing eutrophication by spreading many organic matter to the surrounding water source due to contamination of the bottom layer by long-term fishermen and feed residue, etc. In practice, the establishment of a new cage farm is prohibited under the Act for Promotion of Development of Inland Water Surface The large-scale inland water cage farm complexes such as Ho, Soyang and Chungju have been abolished.

In recent years, the water used for aquaculture has been subjected to a constant water purification process without recycling it to the outside, so that a suitable water quality environment for the fish has been restored, and a circulation filtration mode, a self-nutrient germ and a taga nutrition There is a problem that the initial investment cost is large and technical support is required for maintenance.

In Korea, where three sides are surrounded by the sea and have abundant water resources, marine aquaculture methods have been used in terms of cost and efficiency until now. Aquaculture is a method of cultivating aquatic organisms by allowing water to pass continuously through the breeding grounds. A large amount of aquatic organisms can be produced in a relatively small area. Residues such as excreta are discharged outside the aquarium by flowing water. It is usually made of concrete, and the breeding takes place in a region rich in water sources such as valleys. Freshwater aquaculture has been used to cultivate rainbow trout and mountain fish in Gangwon province. In the case of sea anemone fish, it is used most often in aquaculture by supplying sea water with a large pump and feeding it as it is.

However, most of the pond fish farms in Korea currently use seawater as they are, and they are supplied without filtration or sterilization, and are vulnerable to diseases introduced from nature. This has been particularly problematic due to high mortality from disease outbreaks at the stage of chewing.

In fact, in the case of a foreign fish that occupies an important position in fish farming in Korea, it is known that about 60% of all the foreign fish are dead within 3 to 4 months after catching the fish. In the case of viral hemorrhagic sepsis, the mortality rate is 30 to 70% at the time of one occurrence. In severe cases, the total mortality can occur, and disease-related deaths such as infections caused by Vibrio and Scutica are main.

In particular, in the case of domestic mineral fish farms, most fish farms are not installed separately for shrimp breeding, and when empty fish tanks are used as a fish tank after they have been grown, Most of them occur between 3 and 4 months after the hatching. In 2013, the volume of closed captive fishery reached 6928 tons.

Therefore, studies on the introduction of a system that can reduce the mortality of cultured fishes, especially the mortality rate at the stage of frying, and the safe cultivation by blocking the causes of diseases that can enter from the natural waters by improving the quality of the fishes' Do.

Korean Patent Laid-open Publication No. 10-2014-0146995 discloses that a dirt discharge hole 350 is formed in the center of the bottom and an inflow hole is formed in the lower portion, An inflow control plate for rotationally flowing the breeding water in the rotating water flow direction; And a discharge control plate detachably disposed on a wall of the breeding tank for defining the discharge opening and having a discharge hole formed at an upper portion thereof. Korean Patent No. 10-0889497 discloses that the breeding tank is composed of two internal channels communicated at both ends, and the bottom of both ends of the central bulkhead of the breeding tank is provided with a dirt suction port. The filtration tank is a submerged biofilter, The bottom of the filtration tank is inclined, the bottom of the inclined surface has an outlet for cleaning the filtration tank, the bottom inclined surface is provided with a corrugated plate support, the corrugated plates are vertically erected on the corrugated plate support, And the water pump is an axial flow pump. The water pump is an axial flow pump. The water pump is a circulation type drinking water tank including a circulating water feeding tank configured to discharge pumped water downward. Korean Patent Registration No. 10-1070820 discloses a fish tank having a cylindrical shape with an inner surface of a cylindrical shape and having a cylindrical body having a receiving space for receiving seawater, a fish tank having the same shape as the fish tank having the cylindrical body, A filtration means including a filtration tank for maintaining water quality; And a drain connecting pipe connected at one end to the filtrate tank and the drain drain valve and at the other end to a drain drain valve of the raising tank, the bottom surface of the receiving space connected to the inner surface of the cylindrical body of the raising tank is a side Wherein the anchovy tank has a downward convex shape toward the center of the anchovy. In Korean Patent No. 10-1181893, a receiving space is formed therein. Slurry is introduced into the internal space through a supply pipe connected to one side and a discharge pipe connected to the other side. A scraper that is installed to separate foreign matter from the surface of the drum filter by contacting one end of the drum with the outer surface of the drum filter, And a reservoir chamber connected to the other side of the discharge pipe and to which the treated water filtered is supplied to the inside to store the treated water. And discloses a resource recycling filtration apparatus. However, the above-mentioned inventions are also applicable to a water tank for storing the raw water for breeding, a drum filter for removing floating matters in the raw water for breeding, an ultraviolet sterilizer for sterilizing the raw water for breeding and feeding the breeding water, and an FRP tank The present invention is different from the sanitary breeding tank system of the present invention in that the composition and effect of the present invention are different from those of the sanitary breeding tank system of the present invention,

The present invention is based on the fact that most of the conventional fish farms in Korea have a structure vulnerable to the diseases introduced from nature because they are used as a breeding water for fish culture by directly introducing seawater into the fish farm, Has been a problem because of the high mortality rate. Therefore, the present invention improves the quality of the breeding water of aquaculture fishes, thereby reducing the mortality rate of cultured fishes, particularly, the mortality rate at the stage of frying, And to provide a system capable of performing the above-described operations.

In order to solve the above-mentioned problems, the present invention relates to a water treatment system comprising: a water storage tank having a floor and an outer wall having a predetermined area and capable of receiving and harvesting raw water for aquaculture from nature; An ultraviolet sterilizer connected to one side of the drum filter or the water storage tank for sterilizing the feed water to feed the ultraviolet sterilizer or the drum filter, And a FRP tank having a floor and an outer wall and capable of accommodating breeding water and aquatic organisms.

The drum filter has a charging plate formed on one side of the outer circumference of the filter and the bottom surface of the filter case to adhere and remove fine suspended particles in the feed water through a polarized current, and the polarizing current is 1.5 V to 12 V .

By using the sanitary water tank system according to the present invention, it is possible to filter and sterilize the raw water for use in the water-based aquaculture using natural seawater, thereby using the water as the water for breeding, It is possible to provide a system that can reduce the mortality rate, especially the mortality rate at the stage of frying, to carry out an efficient culture that is safe from disease and low mortality rate, thereby lowering the use of antibiotics in the aquaculture process, It can contribute to increase income of fishermen.

1 is a schematic diagram showing a sanitary breeding aquarium system of the present invention.
2 is a perspective view of the drum filter of the sanitary breeding aquarium system according to the present invention.
3 is a perspective view showing a drum filter structure of a sanitary breeding water tank system according to the present invention.
4 is a side sectional view of the drum filter of the sanitary breeding aquarium system according to the present invention.
5 is a functional diagram of the drum filter of the sanitary breeding aquarium system according to the present invention.
FIG. 6 is an evaluation test chart for evaluating the efficacy of the sanitary breeding water tank system according to the present invention (A: drum filter, B: ultraviolet sterilizer, C: controller D: water tank).
FIG. 7 is a photograph showing the occurrence of sediments in the control (A) and the sanitary breeding tank (B) when the turbid raw water was introduced.

Korea is surrounded by sea on three sides and has relatively excellent sea water resources. Especially, in the condition that it can supply abundant quality of breeding water such as Jeju Island, paddy farming is an excellent farming method in terms of cost and efficiency. However, even in the case of aquaculture obtained from a clean natural environment, pathogens present in nature can be introduced as feed water, and such influent pathogens cause the mortality rate of cultured fishes especially at the stage of frying.

Therefore, the present invention is to provide a sanitary breeding tank system that supplies the obtained breeding stock to safe breeding water for raising aquaculture through appropriate treatment. Hereinafter, the present invention will be described in detail with reference to specific examples. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

A. Sanitary breeding tank system

1 is a schematic diagram showing a sanitary breeding aquarium system of the present invention. The present invention relates to a water treatment tank 100 having a floor and an outer wall having a predetermined area and capable of receiving raw water for aquaculture from nature and being connected to the water tank 100 or ultraviolet sterilizer 300, An ultraviolet sterilizer 300 connected to one side of the drum filter 200 or the water storage tank 100 to sterilize the feed water to supply the water to the fresh water, And an FRP water tank (400) which is connected to one side of the sterilizer (300) or the drum filter (200) by a pipe and has a floor and an outer wall of a predetermined area, System.

The seawater in the natural state is stored in the water storage tank 100 using the pump or the tide water only. Generally, the feed water is stored in the water tank for a certain period of time in the water-feeding style, and the foreign particles in the feed water are removed by precipitating the solid suspended particles contained in the feed water. However, microparticles such as nitrate are colloidally precipitated for a long period of time, and even if settled, they are easily scattered again, so they may be included in the breeding season when they are supplied as breeding water. At this time, there is a high possibility that bacteria adhered to fine particles and the like are introduced together.

Therefore, the sanitary breeding water tank system provided in the present invention includes a process of filtering foreign matter by filtering the breeding stock water that has undergone the settling process in the drum filter (200). The feed water having a part of the foreign matter removed from the water storage tank (100) through the water inlet pipe (220) flows into the drum filter (200). At this time, the inside of the filter 240 is depressurized to draw moisture into the cylindrical interior of the filter 240. The foreign material is filtered by the filter 240, Lt; RTI ID = 0.0 > 240 < / RTI > At this time, the foreign matter flows out to the dirt outlet 270 (the apparatus for reducing the pressure of the drum filter and the apparatus for discharging the dirt are not shown). The breeding water filtered by the filter 240 is collected through the water intake pipe 230, sterilized, and then used as breeding water.

FIG. 2 is a perspective view of a drum filter of a sanitary breeding water tank system according to the present invention, and FIG. 3 is a perspective view showing a drum filter configuration of a sanitary breeding water tank system according to the present invention. The drum filter has an automatic filtration function and has a large processing capacity. The feed water is filtered through the filter 240, and the filtered feed water passes through the sterilization process again, but the fine particles contained in the feed water can pass through the filter 240 and enter the feed water. In order to prevent inflow of pathogens such as bacteria adhered to the fine particles, the present invention is characterized in that when the raw water is filtered, the filter 262 is attached along the outer circumferential surface of the filter 240 and the charging plate 261 is attached to the lower surface of the filter case. And the electric power polarized in the AC / DC converter 260 is charged to the different magnets 262 and the charging plate 261 at different polarities. The air supplied through the air injection pipe 250 is injected into the charging plate 261 and the filter 240 through the air injection port 251 to remove foreign substances accumulated due to filtration, It is possible to extend the performance of the light source 261. In this case, since the fine clay particles are generally positively charged or induce electricity to electrical stimulation, they are adhered to the charged plate 261 charged with (-) and (+) by the anticipation 262, Water.

FIG. 4 is a side sectional view of the drum filter of the sanitary breeding water tank system according to the present invention, and FIG. 5 is a function diagram of the drum filter of the sanitary breeding water tank system according to the present invention. The major outlook 262 is formed in a mesh-like cylindrical shape and is located outside the outer surface of the filter 240. Accordingly, the moisture passes through the filter 240 and is used as a holding water, the solid floating matter is filtered through the filter 240, and the fine particles, which block the filtering holes of the filter and lower the filtering efficiency, And is also helpful in enhancing the durability of the filter 240 because it is caught in the view 262.

The charge plate 261 formed on the lower surface of the filter case 210 can be charged with negative charges and act on the negatively charged fine clay particles to remove the charged particles from the water. In addition, the charging plate 261 and the counter top view 262 are charged to different polarities, and the attached fine particles can be removed and cleaned.

The charging plates 261 and 262 are made of a conductor such as a metal or a carbon body, and graphite-silicone, carbon-chloroprene, carbon nanotubes, or the like can be used. At this time, the current can be used in the range of 0.5 to 12 V, and the microorganisms adhered to the charging plate 261 or the prospective view 262 can be removed by increasing the operating voltage.

The breeding water filtered through the drum filter is sterilized in the ultraviolet sterilizer 300. Ultraviolet irradiation has the advantage that it is safe for cultured organisms because there is little change to water quality elements other than sterilization effect. However, in consideration of the large volume of the cultivated water to be sterilized, the ultraviolet sterilizer using a low pressure amalgam UV lamp having a strong sterilizing wavelength (UV-C) Lt; / RTI >

In the previous experiment for the present invention, sterilization efficiency was low when sterilized raw water was firstly filtered with ultraviolet sterilizer. It is considered that ultraviolet rays are scattered and absorbed by suspended substances in the raw water. Therefore, the higher the concentration of the suspended substance, the higher the ultraviolet ray dose for sterilization. Therefore, the present invention is characterized in that the raw water of the breeding stock is first filtered using a drum filter, and ultraviolet sterilization is performed to increase sterilization efficiency and reduce power required for ultraviolet sterilization.

Breeding water sterilized by ultraviolet sterilizer (300) is supplied to the FRP tank where breeding aquaculture is kept. FRP (Fiber Reinforced Plastics) water tank is a semi-permanent reinforced plastic that is stronger than iron and lighter than aluminum and has excellent corrosion resistance and heat resistance. It is composed of new composite structure of unsaturated polyester resin and fiber glass. Therefore, it is easy to clean the inner surface of the tank, and it is helpful to reduce the survival rate of the pathogens in the general farm where the adult fish and the fry are alternately raised, thereby increasing the survival rate of the frying stage.

B. Evaluation experiment of sanitary breeding tank system

Evaluation of filtration efficacy, evaluation of germicidal efficacy and prevention of viral hemorrhagic sepsis (VSH) were conducted to evaluate the efficacy of the sanitary breeding tank system according to the present invention.

FIG. 6 is an evaluation test configuration chart for evaluating the efficacy of the sanitary breeding water tank system according to the present invention. In order to demonstrate the designed hygienic breeding system model, a designed model was constructed in the space in the breeding facility of the Jeju Special Self - Governing Province, Korea Fisheries Research Institute, and the hygienic characteristics were measured by measuring the concentration of suspended substances and bacteria in the water tank. , Optimum breeding density, depth of water, and water exchange rate. In addition, the actual flounder was stocked with the test fish in April, which is the main stocking stage of Jeju area.

B.1. Assessment of Filtration Efficacy of Sanitary Breeding Tank System.

In order to evaluate the efficacy of the filter in the sanitary water tank system, the presence of sediment in the water tank prior to the test harvesting was visually evaluated.

FIG. 7 is a photograph showing the occurrence of sediments in the control (A) and the sanitary breeding tank (B) when the turbid raw water was introduced. In the case where the influent source was turbid due to external weather deterioration, there was a clear difference between the number of breeding of the sanitary breeding tank system according to the present invention and the case where the breeding water was introduced without such treatment.

In order to demonstrate the filtration efficiency of the sanitary breeding system after test harvesting, the test fishes were housed in the inflow water of the sanitary breeding system and the inflow water of the FRP tank without the filtration and sterilization treatment system. The concentrations were compared. The concentration of suspended solids in the experimental group and the control was measured three times, and the results are shown in Table 1.

As shown in Table 1, in the case of low suspended solids concentration (0.26 ~ 0.65mg / L), the concentration of suspended solids was 0.25 ~ 0.48mg / In case of 1.83mg / L, the concentration of suspended solids in the treated water system of the sanitary breeding system was analyzed to be 1.3mg / L.

The results of the comparison of suspended solids concentration between control (A) and sanitary water tank (B) (unit: mg / L)
division
Source of inflow Sanitary breeding system
Sanitary breeding system water tank
Control One 2 3 One 2 3 Primary 0.65 0.49 0.85 0.61 0.74 1.67 2.57 1.34 Secondary 0.26 0.25 0.37 0.63 0.68 1.11 1.15 1.20 Third 1.83 1.3 4.73 1.47 6.21 4.53 4.79 22.44

The concentration of suspended solids in the water tank of the sanitary breeding tank and the control tank was relatively larger than that of the suspended solids in the respective influent streams. In the first analysis, the concentration of suspended solids in the sanitary system was 0.61 ~ 0.85mg / L, while that of the control was 1.34 ~ 2.57mg / L. In the second analysis, the concentration of suspended solids in the sanitary system was 0.37 To 0.68mg / L, and the control tanks were analyzed as 1.11 ~ 1.20mg / L. However, when the concentration of suspended solids in the influent water was very high due to deterioration of the weather in the outside sea area, the concentration of suspended solids in the sanitary system was estimated to be 6.21 mg / L at the lowest 1.47 mg / L, / L to 22.44 mg / L at the maximum, but the concentration of suspended solids was always lower in the case of filtration than in the control.

In the breeding of cultured aquaculture, there is always the residue of the cultured fish and the feed after the feed, so that the suspended matter always occurs. As a result of the verification test, it is only necessary to filter the feed water to reduce the concentration of the initial suspended matter It was also confirmed that the concentration of suspended matter produced during cultivation period was also decreased.

B.2. Assessment of sanitary efficacy of sanitary breeding tank system.

In order to evaluate the germicidal efficacy of the sanitary breeding system, the number of bacteria in the influent source and the number of bacteria in the treated water (sanitary breeding tank influent) through the sanitary breeding system were compared and analyzed. The bacterial count was measured by 0.45 ㎛ membrane filter, and the number of samples was gradually filtered from 1 mL to 100 mL, and the culture medium with effective colony count was selected and counted in mL.

Comparison of Bacteriological Characteristics between Sanitary Breeding Tank System and Control division Total bacterial count
(cfu / 100 mL in BHIA) Number of bacteria in the Vibrio genus
(cfu / 100 mL in TCBSagar) Source of inflow
(Control influent) 5.5 × 10 3 3.1 x 10 3 Control 1 4.9 × 10 5 4.4 × 10 3 Control 2 4.0 × 10 5 3.8 × 10 3 Control 3 6.4 × 10 5 2.9 x 10 3 Sanitary breeding system treated water
(Hygiene breeding system influent) 4 x 10 ND Sanitary Breeding System Tank 1 3.6 × 10 5 3 × 10 2 Sanitary Breeding System Tank 2 3.4 × 10 5 4 × 10 2 Sanitary Breeding System Tank 3 2.8 × 10 5 ND

Table 2 shows the results of the analysis of the bacteria detected in the control water and in the breeding water through the sanitary breeding tank system according to the present invention. The total number of bacteria was 5.5 × 10 3 cfu / 100 mL and the number of estimated bacteria in Vibrio was 3.1 × 10 3 cfu / 100 mL, while the total number of bacteria in the hygiene system was 4 × 10 cfu / 100 mL , And the number of bacteria in the Vibrio was not detected after filtration up to 100 mL. In case of inflow water of sanitary breeding tank system, it was confirmed that the bactericidal effect was about 99.3% based on the total number of bacteria as compared with the inflow water.

The number of bacteria in each tank was found to be 4.0 × 10 5 to 4.9 × 10 5 cfu / 100 mL in the control tank, and 2.9 × 10 3 to 4.4 × 10 5 cfu / 100 mL in the vibrio On the other hand, 2.8 × 10 5 to 3.6 × 10 5 cfu / 100 mL of bacteria in the sanitary breeding system were not detected during the maximum 100 mL filtration in one test and 3 × 10 5 2 cfu / 100 mL, 4 x 10 2 cfu / 100 mL.

There is a certain amount of bacteria in the breeding tank due to the excretion of aquaculture fish and the residue due to feed input. Of these, pathogens and parasites that cause aquaculture are often mixed with suspended solids that flow mainly from the outside. Therefore, the removal of suspended matter and sterilization of the influent water are important for suppressing the occurrence of diseases in aquaculture in aquaculture period. The filtration sterilization treatment by the sanitary water tank system of the present invention significantly reduces bacteria .

B.3. Evaluation of fish body growth

Table 4 is a table showing changes in the fish germinance (g) in the stages of growth of the fish cultured in the sanitary breeding tank system of the present invention and the control. In the sanitary breeding tank system of the present invention, it was confirmed that the increase of fish weight was higher than that of the control in the same breeding conditions.

The increase in the average fish body weight under the same conditions, such as the density of breeding and the temperature of breeding, the amount of breeding, and the amount of feeding, indicate that the overall breeding environment of the cultured fish was improved by the sanitary breeding tank system of the present invention.

Results of the growth test water tank (G) At the time of stocking 2 weeks 4 weeks 6 weeks 8 weeks Sanitary breeding system water tank -1 5.79 ± 0.69 11.27 占 1.48 19.52 + - 2.92 29.57 + - 5.33 41.76 ± 6.01 Sanitary Breeding System Water Tank -2 5.79 ± 0.69 8.86 ± 1.09 15.55 + - 3.43 26.45 + - 5.27 42.43 + - 7.32 Sanitary Breeding System Tank-3 5.79 ± 0.69 10.08 ± 1.71 16.34 + - 4.33 30.67 ± 5.97 45.09 ± 9.99 Control tank-1 5.79 ± 0.69 10.79 ± 1.15 14.36 ± 3.41 23.53 + - 5.34 35.43 + - 7.42 Control tank-2 5.79 ± 0.69 11.14 ± 1.76 14.94 ± 3.14 25.41 + - 5.33 35.90 ± 7.26 Control Tank-3 5.79 ± 0.69 10.63 ± 1.76 14.73 + - 2.33 23.97 + - 4.73 37.62 ± 7.81

B.4. Sanitary breeding tank system and Control  Mortality comparison

In order to confirm the effect of reducing the mortality of the sanitary breeding tank system of the present invention, the flounder flounder was stocked in the control and the sanitary breeding tank system of the present invention, respectively.

Table 4 is a table showing the incidence of dead animals in each test. In the control group, a total of 3 animals died during the test period, but in the case of the sanitary breeding system, five animals were killed and the effectiveness of the sanitary breeding system was confirmed. Table 5 is a table for analyzing the above-described dead bodies by mortality causes.

According to the types of diseases, the number of cases caused by Scutica disease was the highest in the control group. In the case of this sanitary breeding system, the mitigation effect on the parasitic diseases Scutica and Echiohodo disease was confirmed in relation to the disease reduction, and the bacterial disease was confirmed to have the effect of reducing the bacterial disease and Vibrio disease.

Test classification division Our company status by breeding institution 1 week 2 weeks 3 weeks 4 weeks 5 weeks 6 weeks 7 weeks 8 weeks system Sanitary breeding system water tank -1 - - - - - - - - 0 Sanitary Breeding System Water Tank -2 - - - One - One 2 One 5 Sanitary Breeding System Tank-3 - - - - - - - - 0 sub Total 0 0 0 One 0 One 2 One 5 Control tank-1 - 7 - One - 5 - 2 15 Control tank-2 - 2 One One One One 2 2 10 Control Tank-3 - - One One One 2 7 6 18 sub Total 9 2 3 2 8 9 10 43

Current status of our cause division Disease type system Scutica bottle Ektio Pressed bottle Vibrio disease Slide bacterial disease Streptococcus disease Other Sanitary breeding system water tank -1 0 Sanitary Breeding System Water Tank -2 One 4 5 Sanitary Breeding System Tank-3 0 sub Total 0 0 One 0 0 4 5 Control tank-1 One 3 One 10 15 Control tank-2 One One 2 2 One 3 10 Control Tank-3 11 One 2 4 18 sub Total 13 5 4 3 One 17 43

Scutica, Botrytis, Bacillus, and Vibrio are mostly known to cause damage to flounder. In the past, after the hatching of the flounder, within 3 to 4 months, the disease caused a high mortality due to the onset of the disease, and supplementation of fry and use of antibiotics were inevitable. However, it has been confirmed that the use of the sanitary breeding water tank system of the present invention is effective in prevention of various diseases without using antibiotics by filtering and sterilizing the raw water for breeding to prevent the inflow of suspended substances and pathogens from the outside.

By using the sanitary breeding water tank system according to the present invention, it is possible to filter and sterilize the breeding stock water used in aquaculture using natural seawater resources and use it as a breeding water to fundamentally block the causes of diseases that may enter from nature, The mortality rate, especially the mortality rate at the stage of frying can be lowered to provide a system capable of carrying out an efficient culture that is safe from disease and low in mortality rate, and thus contributes to the increase of income of farmers.

100: water tank 110: original import water pipe
200: Drum filter 210: Filter case
220: inlet pipe 230: inlet pipe
240: filter 250: air supply pipe
251: Air nozzle 260: AC / DC converter
261: Great Battle Plate 262: Great View
270: Dirt outlet 300: Ultraviolet sterilizer
400: FR water tank 410: Water discharge pipe
a: (+) Lower whole b: (-) Lower whole

Claims (3)

A reservoir having a floor and an outer wall of a predetermined area and capable of receiving and accommodating a breeding stock for aquaculture from nature; A cylindrical drum filter connected to the water storage tank or the ultraviolet sterilizer through a pipe to remove suspended foreign matter in the raw water for breeding is provided inside the filter case,
The cylindrical drum filter is provided with a cylindrical base view surrounding the outer periphery of the cylindrical drum filter. A filter plate having a carbon body conductor is formed on the bottom surface of the filter case having a certain distance from the cylindrical base view. And the air is supplied to the outside of the cylindrical drum filter to store foreign matter filtered by the cylindrical drum filter, and an air nozzle for removing foreign substances is formed outside the cylindrical drum.
An ultraviolet sterilizer for supplying the filtered filtered water to sterilize the cylindrical drum filter; And an FRP water tank connected to one side of the ultraviolet sterilizer or the drum filter and having a floor and an outer wall of a predetermined area and capable of receiving breeding water and aquatic organisms. delete delete
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KR102075634B1 (en) 2019-04-29 2020-02-10 양원택 Smart farming device
KR20220144184A (en) 2021-04-19 2022-10-26 주식회사 아이택트 Water tank environment management system for reducing the death rate of marine organisms

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102075634B1 (en) 2019-04-29 2020-02-10 양원택 Smart farming device
KR20220144184A (en) 2021-04-19 2022-10-26 주식회사 아이택트 Water tank environment management system for reducing the death rate of marine organisms

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