WO2022250230A1 - Unité de nettoyage et dispositif de pêche à l'anguille haute densité de type filtre de circulation l'utilisant - Google Patents

Unité de nettoyage et dispositif de pêche à l'anguille haute densité de type filtre de circulation l'utilisant Download PDF

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Publication number
WO2022250230A1
WO2022250230A1 PCT/KR2021/018718 KR2021018718W WO2022250230A1 WO 2022250230 A1 WO2022250230 A1 WO 2022250230A1 KR 2021018718 W KR2021018718 W KR 2021018718W WO 2022250230 A1 WO2022250230 A1 WO 2022250230A1
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Prior art keywords
water
unit
foreign matter
tank
cleaner
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PCT/KR2021/018718
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English (en)
Korean (ko)
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임수근
Original Assignee
신강수산영어조합법인
임수근
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Priority to JP2023573414A priority Critical patent/JP2024518856A/ja
Publication of WO2022250230A1 publication Critical patent/WO2022250230A1/fr

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; 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
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/10—Culture of aquatic animals of fish
    • A01K61/13—Prevention or treatment of fish diseases
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/90—Sorting, grading, counting or marking live aquatic animals, e.g. sex determination
    • A01K61/95—Sorting, grading, counting or marking live aquatic animals, e.g. sex determination specially adapted for fish
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/067—Construction of the filtering drums, e.g. mounting or sealing arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • B01D33/463—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • 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
    • C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/08—Aerobic processes using moving contact bodies
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/08—Aerobic processes using moving contact bodies
    • C02F3/085—Fluidized beds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/10—Packings; Fillings; Grids
    • C02F3/109—Characterized by the shape
    • 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

Definitions

  • the present invention relates to an eel farming device, and more particularly, to a cleaner unit that enables high-density eel farming by maintaining the habitat environment of eels in the best condition and can sort out sickly eels, and a circulatory filtration type high-density eel farming using the same. It's about the device.
  • Flow-through farms are open farms that continuously pass water from the outside to the breeding grounds, and require a large amount of breeding water, which is greatly affected by the natural environment in which the farms are located.
  • the aquaculture density is low, the problem of contamination of the water system due to the generation of feed waste, excrement, ammonia, and nitrogen, and the production cost is high due to low productivity per unit area.
  • the circulation filtration aquaculture system has a high density aquaculture and high energy saving effect compared to the flow-through aquaculture system. This circulation filtration aquaculture system is focused on water quality management in the breeding tank.
  • a breeding tank for aquaculture and suspension waste (feed scraps, excrement, etc.) generated in the breeding tank are free-falled and settled in a gravity sedimentation tank for a long time, physically treated, and then nitrogen is used in a filtration tank using aerobic microorganisms. After biologically decomposing and removing harmful gases and harmful components that are not well treated by physical methods, such as ammonia, the breeding water is supplied back to the breeding tank and continuously recycled.
  • Republic of Korea Patent Publication No. 10-2017-0077610 discloses a farm using a high-density circulation filtration method
  • Republic of Korea Patent Registration No. 10-1489660 discloses a descending fish farming method through circulation filtration decoration and step-by-step seawater purification. .
  • the posted circulation filtration aquaculture system includes a breeding tank in which a waste outlet is formed in the center of the bottom surface; a micro bubble injector generating a water flow in a certain direction of the breeding tank; A flocculation tank for separating the flocculated precipitate and the supernatant by adding a coagulant; Sediment dewatering machine for dewatering the aggregated sediment; It includes a gravity sedimentation tank that separates the gravity sediment and the supernatant.
  • Republic of Korea Patent Registration No. 10-1704970 discloses a freshwater eel farming device that increases the growth rate and survival rate by using magnetized water.
  • the present invention is to solve the above-described problems, and a cleaner unit capable of preventing the spread of disease and death of eels by screening sickly eels from eels cultivated in a breeding tank in a short time and a circulation filter using the same It is to provide an overeating high-density eel farming device.
  • Another object of the present invention is to provide a cleaner unit that can reduce pollution and gas generation of water stored inside the breeding tank by separating foreign substances, that is, excrement, generated in the breeding tank in a short time, and a circulating filtration type high-density eel farming device using the same. is in providing
  • Another object of the present invention is a cleaner unit capable of maximizing the farming efficiency of eels by treating water for cultivating eels in multiple stages to maintain the best breeding conditions by adjusting water quality, dissolved oxygen content, water temperature, etc., and a circulation filter using the same It is to provide an overeating high-density eel farming device.
  • Another object of the present invention is to provide a cleaner unit that can simplify the post-treatment process of water for farming by removing contaminants generated from eels farmed in breeding tanks in a short time, and a circulating filtration type high-density eel farming device using the same. is in
  • the present invention is to solve the above problems, the cleaner unit of the circulation filtration type high-density eel farming device
  • a drain pipe having an inlet located on the bottom surface of the breeding tank and an outlet located at a position lower than the water level of the breeding tank, the cleaner main body connected to the drain pipe, and the discharge water installed in the cleaner main body and discharged through the drain pipe
  • a separation filter unit that separates sick eels and foreign substances
  • the separation filter unit is rotatable by support rollers installed in the cleaner main body and is installed inclined so that the discharged water can be separated from foreign substances and weak eels that are riding on the discharged water discharged through the discharge pipe.
  • a cylindrical drum filter introduced into the cylinder, and a drive unit for rotating the drum filter by driving at least one of the support rollers;
  • a foreign matter discharge unit for washing the drum filter and discharging the filtered foreign matter to the outside is provided.
  • the foreign matter discharge unit is installed to be spaced apart from the outer surface of the upper side of the cylindrical drum filter by a predetermined distance and has a spray nozzle part for spraying high-pressure washing water, and the spray nozzle part installed on the inner circumferential surface of the drum filter corresponding to the spray nozzle part. It has a foreign matter collection hopper having an inlet with an open top so that washing water and foreign matter sprayed from the nozzle can flow in, and a foreign matter discharge pipe connected to the foreign matter recovery hopper to discharge washing water and foreign matter.
  • Circulating filtration type high-density eel farming apparatus using a cleaner unit to achieve the above object includes at least one breeding tank,
  • a drain pipe having an inlet located on the bottom surface of the breeding tank and an outlet located at a position lower than the water level of the breeding tank, the cleaner main body connected to the drain pipe, and the discharge water installed in the cleaner main body and discharged through the drain pipe
  • a separation filter unit that separates sick eels and foreign substances
  • a cleaner unit connected to the cleaner main body and equipped with a separate discharge pipe for discharging discharged water from which weak eels and foreign substances are separated;
  • a first settling tank for precipitating foreign substances from the water discharged through the separation discharge pipe, a foreign matter separation unit for removing foreign substances from the water precipitated by the first settling tank, and the foreign matter
  • a fixed bed filtration tank for adsorbing the fine sludge contained in the water separated by the separation unit and degassing ammonia;
  • It includes an ozone generator and a dissolver for sterilizing by dissolving ozone in water returned through a circulation pipe after purification by a fluidized bed filtration tank for removing ammonia and nitrous acid from water filtered by a fixed bed filtration tank.
  • the circulation filtration type high-density eel farming device using the cleaner unit according to the present invention enables dense farming of eels and can be continuously used by purifying water, thereby reducing restrictions on places for eel farming.
  • sick fish such as eels being farmed in the breeding tank can be selected, the death of farmed eels can be prevented.
  • the cleaner unit according to the present invention can filter out foreign substances generated by farmed eels in breeding cattle before treating the discharged water, thereby enabling downsizing of the sedimentation tank and the fixed bed filtration tank. It is possible to reduce the odor generated in the process of treating foreign substances including eel secretions.
  • FIG. 1 is a layout view showing a circulation filtration type high-density eel farming apparatus according to the present invention
  • Figure 2 is a perspective view showing the breeding tank of the circulation filtration type high-density eel farming apparatus according to the present invention.
  • Figure 3 is a perspective view showing the cleaner unit of the circulation filtration type high-density eel farming apparatus according to the present invention
  • FIG. 4 is a cross-sectional view of the cleaner unit shown in FIG. 3;
  • FIG. 5 is a perspective view showing the foreign matter separation unit of the circulation filtration type high-density eel farming apparatus according to the present invention.
  • Figure 6 is a cross-sectional view of the circulation filtration type high-density eel farming apparatus shown in Figure 5;
  • FIG. 7 is a side view of the fixed bed filtration tank of the circulation filtration type high-density eel farming apparatus according to the present invention.
  • FIG. 9 is a perspective view of the filtering agent.
  • the circulation filtration type high-density eel farming apparatus 10 using the cleaner unit according to the present invention is installed in at least one breeding tank 20 and the breeding tank 20 to remove sick eels among the eels cultivated. It has a detachable cleaner unit 30, a circulation pipe 25 connected to a separate discharge pipe 39 of the cleaner unit 30 and a water supply pipe 21 installed in the breeding tank 20.
  • the first sedimentation tank 40 for precipitating foreign substances from the water discharged through the separation discharge pipe 35 (hereinafter referred to as treated water), and precipitation is made by the precipitation tank 45 Connected by a circulation pipe to the foreign matter separation unit 50 for filtering the treated water from which primary foreign substances are removed, and adsorbing the fine sludge contained in the treated water separated by the foreign matter separation unit 50 and degassing ammonia.
  • a fixed bed filtration tank 60 for the treatment a fluidized bed filtration tank 70 for removing ammonia and nitrous acid from the treated water filtered by the fixed bed filtration tank 60, and a process purified by the fluidized bed filtration tank 70 It includes an ozone generator and dissolver 80 for sterilizing water using ozone.
  • the breeding tank 20 of the circulation filtering high-density eel farming apparatus 10 using the cleaner unit according to the present invention has an open upper surface and a bottom surface toward the center of the breeding tank 20 of the water supply pipe. It has an inclined structure.
  • a water discharge pipe 22 for discharging water above a set water level is installed in the center of the breeding tank 20.
  • the breeding tank 20 may be made of polypropylene. This breeding tank 20 is easy to clean and maintain because foreign substances in the tank are not attached.
  • the cleaner unit 30 is capable of sorting out weak eels among the eels being cultured in the breeding tank 20, and is a cleaner installed inside the breeding tank 20.
  • a body portion 32 is installed.
  • a part of the cleaner main body 33 is submerged in the water of the breeding water tank 20 so that water can smoothly flow into the cleaner main body 32 from the drain pipe 31 to be described later. it becomes
  • a separation plate 33 is installed in the cleaner main body 32 to separate a part of the inner space into upper and lower parts, and is connected to the separation plate 33 to flow into the upper surface of the separation plate 33 through the discharge pipe 31.
  • a separation filter unit 35 is installed to separate foreign substances and sickly eels from the treated water.
  • an inlet 31a is located on the bottom surface of the breeding tank 20, and a drain pipe 31 coupled to one side of the partition plate 33 and the outlet 31b is installed.
  • the cleaner main body part 32 has the separation plate 33 of the cleaner main body part 32, that is, the discharge part 31b, so that water can be discharged smoothly from the drain pipe 31 to the inner space. It is installed in the breeding tank 20 so as to be located at a position lower than the water surface of (20).
  • a separation discharge pipe 39 connected to the circulation pipe 25 is installed on the lower surface of the cleaner main body 32 to purify the treated water that has passed through the separation filter unit 35 .
  • the separating plate 34 connected to the drain pipe 31 may be formed in a plate shape having a predetermined curvature so that the weak eel discharged through the drain pipe 31 can slide without being damaged.
  • the separation filter unit 35 installed in the cleaner body 32 is rotatable by a plurality of support rollers 36 installed in the cleaner body 32 and installed at an angle to clean the discharge pipe 31.
  • the cleaner main body 32 is provided with a foreign matter discharge unit 40 for washing the drum filter 38 and discharging the filtered foreign matter to the outside.
  • Each of the support roller parts 36 is fixed to the cleaner body part 32 to rotatably support the drum filter 38, and the support roller part 36 is fixed to the cleaner body part 32.
  • the support roller 36a rotatably installed on the support bracket 36b to support the outer circumferential surface of the drum filter 38 and the drum filter supported by the support roller 36a installed on the end side of the support bracket 36b. It includes an idle roller 39c supporting the inner surface of the edge of (38).
  • the end of the support roller 36a that is, the end of the support roller 36a corresponding to the edge of the drum roller 38 is for preventing the drum filter 38 from moving due to the end of the drum filter 38 being caught.
  • An annular support jaw may be installed.
  • the drum filter 38 may be formed by mounting a mesh filter on a cylindrical frame 38a, and the mesh filter may be divided into a plurality of pieces and mounted. Further, support guides for supporting the support roller 36a may be installed at both ends of the cylindrical frame.
  • the foreign matter discharge unit 40 is installed to be spaced apart from the outer surface of the upper side of the cylindrical drum filter 38 by a predetermined interval and includes a spray nozzle unit 41 for spraying high-pressure washing water, and the spray nozzle unit 41
  • a foreign matter recovery hopper 42 having an inlet with an open top so that the washing water and foreign matter sprayed from the injection nozzle unit 41 installed on the inner circumferential surface of the drum filter 38 corresponding to 42) is provided with a foreign matter discharge pipe 43 for discharging washing water and foreign matter.
  • the foreign matter collection hopper 42 is preferably installed at the same inclination angle as that of the cylindrical drum filter 38, and a foreign matter discharge pipe is preferably installed at the end side of the inclined foreign matter collection hopper 42.
  • a protruding blade (not shown) may be installed on the inner circumferential surface of the drum filter 38 in a longitudinal direction to move the filtered foreign matter to the upper side of the foreign matter collection hopper 42 .
  • continuous or discontinuous spiral blades are formed on the inner circumferential surface of the drum filter 38 so that the eel discharged like treated water can be discharged through the discharge pipe 31, so that the eel can be discharged to the rear side of the drum filter 38 It is desirable to have In this case, although not shown in the drawing, a separate chute for discharging the eel may be installed at a portion connected to the rear end of the drum filter 38.
  • the drum filter of the foreign matter discharge unit 35 is installed obliquely in the cleaner body 32, and the discharge port 31b of the drain pipe 31 is located at a position lower than the water level of the breeding water tank 20. Since it is located, the water in the breeding tank 20, that is, the treated water is discharged to the side of the separator plate 33 and the drum filter 38 through the drain pipe 31, and the discharged water is rotated by the drive unit 35d. After passing through the drum filter 38, it is discharged through the separation discharge pipe 39 connected to the circulation pipe 25, and is described later in the precipitation tank 40, the fixed bed filtration tank 60, the fluidized bed filtration tank 70, the ozone generator, and the melting bed. It is purified and sterilized while supporting the group 80.
  • the eel has a swimming habit of swimming in the opposite direction to the direction of the water flowing through the discharged pipe, in particular, the habit of moving upstream of the water when moving the pipe.
  • relatively weak eels cannot resist the flow of water flowing from the inlet 31a of the drain pipe 31 and discharged to the outlet 31b, and the upper surface of the separation plate 33 of the cleaner unit and the upper surface of the separator 33 connected thereto It is discharged to the inner circumferential side of the drum filter (38).
  • a large number of cultured eels flow into the drain pipe 31 and swim, and the sickly eels are caught up in the treated water drained through the drain pipe 31 and discharged to the side of the separator 33.
  • the eel discharged through the separation screen 34 is separated and managed separately.
  • the drum filter 38 may be clogged.
  • high-pressure washing water is sprayed from the spray nozzle 41 from the outer circumferential side to the inner surface of the drum filter 38, and the inside of the drum filter 38
  • Foreign substances and foreign matter blocking the drum filter 38 are introduced into the foreign matter collection hopper 42 like washing water and then discharged to the outside through the foreign matter collection pipe 43.
  • the sedimentation tank 45 is connected to the circulation pipe 25 so that discharged water can be introduced through the separation discharge pipe 35 and has a tank structure with an open top.
  • the sedimentation tank may be made of a concrete structure.
  • the excretion and secretions generated from the eels and the corrosion of the feed to be fed are filtered out by the foreign matter discharge unit 35 of the cleaner unit 20 as described above.
  • the settling tank 40 and the foreign matter separation unit 55 may not be separately installed or their structures may be drastically reduced.
  • the sedimentation tank 51 precipitates and removes solid sludge such as small excrement or powdered feed that has not been previously filtered by the foreign matter discharge unit 35 of the cleaner unit 20, thereby removing the primary cause of decay. .
  • the foreign matter removal unit 50 removes fine sludge, that is, small fine sludge up to 40 micrometers from the water for aquaculture from which the solid sludge has been removed by the settling tank 50.
  • the foreign matter removal unit 50 may not be installed or may be relatively reduced.
  • a support pipe 59c forming a passage leading into the shaft 57a is provided.
  • the water flowing into the drum 57 that is, the water to be treated flowing in from the settling tank 51 is filtered by the filter net 57b of the drum, and the filter net 57b
  • the filtered foreign matter flows into the collection hopper 59b connected to the fixing shaft 57a having a hollow part.
  • a washing pipe for discharging washing water is installed on the outer side corresponding to the resin hopper 59b, the foreign matter separated from the filter net by the washing water sprayed therefrom flows into the collection hopper and is discharged.
  • the fixed bed filtration tank 60 adsorbs and decomposes the water to be treated from which fine sludge is removed by the foreign matter removal unit 55 by ionization, and uses it as an anoxic tank to degas ammonia.
  • the fixed filter tank 60 is for adsorbing and decomposing sludge in the water to be treated and degassing ammonia in the water to be treated in an anoxic condition.
  • the filter tank 61 filled with the water to be treated The fixed filtering agent 65 is immersed and overlapped and installed in a laminated form.
  • a plurality of suspension ropes 62 are overlapped, and the suspension ropes 62 are tied to the hanging pipe 63 mounted on the top of the filter tank 61. It is installed in a suspended state at a predetermined position in the filtration tank 61.
  • the fixed filtering agent 65 is installed so that the immersion and condensate are in contact with each other in the filtration tank 61 in which the filtering target water is accommodated, adsorbs and decomposes sludge in the filtering target water, and degassing ammonia in the filtering target water.
  • a base 66a in which a plurality of main holes 66b open to allow water to pass are spaced apart from each other, and sub-holes 66c open to allow treated water to pass through are formed in areas between the main holes 66b.
  • main net body 66 protruding from one surface of the base, formed in the inner region of the main hole 66b, and formed in a mesh shape so that treated water can pass through and sludge in the treated water can be adsorbed. And it protrudes from the other surface of the base 66a, is formed in the area between the main holes 66b, and has a sub-network 67 formed in a network so that the treated water can pass through and the sludge in the treated water can be adsorbed. do.
  • the fluidized bed filtration tank 70 is connected to the fixed filtering agent 60 by a circulation pipe, and carriers of a predetermined pattern are stored in the fluidized bed filtration tank 70
  • the treatment target water is treated by microorganisms.
  • aeration pipes 71 for aeration are installed in the fluidized bed filtration tank 70.
  • the fluidized bed filtration tank 70 occupies about 70% of the water to be treated, and continuous aeration is performed to remove ammonia and nitrous acid by suspended matter and microorganisms attached to the carrier.
  • the water to be treated by the fluidized bed filtration tank 70 flows into the water quality control tank 80.
  • the water temperature of the water to be treated introduced into the water quality control tank 80 is controlled by the heat exchanger 82 of the boiler 81 installed in the water quality control tank.
  • ozone is sprayed from the ozone generating nozzle 91 connected to the ozone generator and dissolver 90 and located in the water quality control tank 80 to sterilize the water to be treated.
  • the ozone that sterilizes the treated water is reduced to oxygen, increasing the amount of dissolved oxygen in the water to be treated.
  • the water to be treated the quality of which has been adjusted and sterilized by the water quality control tank 80, is supplied to the inside of the breeding tank through the water supply pipe 21 after passing through the oxygen dissolvers 100 installed on the circulation pipe.
  • the cleaner unit according to the present invention and the circulating filtration type high-density eel farming device using the same can select and discharge sickly eels among the eels cultivated inside the breeding tank, so the eels are easy to manage.
  • treatment target part discharged from each breeding tank can be purified and sterilized in multiple stages and reused, dense farming is possible and production per unit area can be doubled.

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Zoology (AREA)
  • Microbiology (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Filtration Of Liquid (AREA)

Abstract

La présente invention concerne une unité de nettoyage et un dispositif de pêche à l'anguille haute densité de type filtre de circulation l'utilisant. L'unité de nettoyage comprend : un tuyau de drainage ayant une entrée positionnée sur la surface inférieure d'une pluralité de réservoirs d'eau d'élevage et une sortie positionnée à une position inférieure au niveau d'eau des réservoirs d'eau d'élevage ; une partie de corps de nettoyage ayant un espace intérieur relié au tuyau de drainage ; un tamis de séparation pour séparer l'espace intérieur de la partie de corps de nettoyage en une partie supérieure et une partie inférieure, de façon à séparer une anguille malade et une matière étrangère de l'eau de décharge introduite à partir du tuyau de drainage ; et un tuyau d'évacuation de séparation relié à la partie de corps de nettoyage pour évacuer l'eau de décharge à partir de laquelle l'anguille malade et la matière étrangère ont été séparées.
PCT/KR2021/018718 2021-05-27 2021-12-10 Unité de nettoyage et dispositif de pêche à l'anguille haute densité de type filtre de circulation l'utilisant WO2022250230A1 (fr)

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