WO2015147743A1 - Système et composants pour la pisciculture - Google Patents

Système et composants pour la pisciculture Download PDF

Info

Publication number
WO2015147743A1
WO2015147743A1 PCT/SG2014/000576 SG2014000576W WO2015147743A1 WO 2015147743 A1 WO2015147743 A1 WO 2015147743A1 SG 2014000576 W SG2014000576 W SG 2014000576W WO 2015147743 A1 WO2015147743 A1 WO 2015147743A1
Authority
WO
WIPO (PCT)
Prior art keywords
receptacles
receptacle
filter
central channel
air lift
Prior art date
Application number
PCT/SG2014/000576
Other languages
English (en)
Inventor
Arnold KHOO
Original Assignee
Arkwater.Com Pte Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arkwater.Com Pte Ltd filed Critical Arkwater.Com Pte Ltd
Publication of WO2015147743A1 publication Critical patent/WO2015147743A1/fr

Links

Classifications

    • 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
    • A01K61/60—Floating cultivation devices, e.g. rafts or floating fish-farms
    • 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 the field of aquaculture, in particular, to fish farming.
  • the system is a self-buoyant, neutral buoyancy recirculating aquaculture system.
  • the system includes a plurality of receptacles, with each of the receptacles including a top rim. Wooden planks are configured to link-join the plurality of receptacles connected at their top rims. It is preferable that the plurality of receptacles are link joined together to form a substantially unsinkable structure.
  • a buoyancy of the system is advantageously able to be varied.
  • the top rim may be configured to support a plurality of mounting structures.
  • each of the plurality of receptacles includes at least one of: a filtration system and at least one air lift filter.
  • Each of the plurality of receptacles can be made from a durable, high impact plastic material.
  • a receptacle specifically suitable for fish farming The receptacle is preferably configured to be link joined with other receptacles at their top rims using wooden planks when assembling a substantially unsinkable structure comprising a plurality of the receptacles.
  • the receptacle is preferably made from a durable, high impact flexible plastic material using either roto- molding or injection molding. It is advantageous that the receptacle is able to be stacked as this aids in transportation of the receptacle.
  • the device includes a central channel for passage of water entering from a first end of the centraf channel; and a filter tray mounted to a second end of the central channel.
  • the device shall include an air tube; and an air injector.
  • the filter tray contains at least one filter layer with a perforated base, and if there is a plurality of filter layers, there are arranged in a stacked configuration and each of the filter layers can have different filtration properties.
  • the filter tray may be for placement of at least one of marine organisms and at least one bio- filtration mat.
  • the central channel includes a UV radiation generating apparatus, the UV radiation generating apparatus preferably including a UV tube; a DC inverter ballast; and a water proof connector,
  • Figure 2(a) - (b) show various views of a deployment configuration of the receptacle of Figure 1.
  • Figure 3 shows a filtration system used in the receptacle of Figure 1.
  • Figure 4(a) - (c) show various views of an air lift filter which can be used in the receptacle of Figure 1.
  • Figure 5 shows a schematic diagram of a system of the present invention.
  • Figure 6 shows a perspective view of an alternative filter tray of the air lift filter of Figure 3.
  • Figure 7 shows a cross sectional view of the alternative filter tray of Figure 6.
  • Figure 8 shows a top perspective view of the system of Figure 5 with structures in place to facilitate solar power.
  • Figure 9 shows various components of a UV generating apparatus used in the air lift filter of Figure 4.
  • Figure 10 shows a close-up perspective view of a connector of the UV generating apparatus of Figure 9.
  • FIG. 1 there is shown various views of a receptacle 20, namely side view ( Figure 1(a)), top view ( Figure 1(b)) and perspective view ( Figure 1(c)).
  • the receptacle 20 is able to be used for containing fish and can also be used as part of a working platform which floats in water.
  • a portion 21 of the receptacle 20 used to contain fish has a substantially circular cross section, as certain types of fish typically swim in circles when in captivity. However, it should be appreciated that the portion 21 can also have a cross section of other shapes, such as, for example, elliptical, polygonal and the like.
  • the receptacle 20 is made from a durable, high impact plastic material such as, for example, 10 mm thick LLDPE plastic, 10mm thick HOPE plastic and so forth. Other similar plastic materials of varying thickness can also be used. Such materials are used for the receptacle 20 as it results in a desirable cost of fabrication, a desirable extent of stiffness, and a desirable weight.
  • the receptacle 20 can be fabricated using either a roto-molding or injection molding process. It should be appreciated that while Figure 1 indicates some dimensions for the receptacle 20, the receptacle 20 should not be restricted to the stated dimensions, and it can be re-sized accordingly to specific needs without having to maintain the same proportions.
  • the receptacle 20 is shaped in a manner which allows multiple receptacles 20 to be stacked. This is advantageous when transporting multiple receptacles 20, as stacks of the multiple receptacles 20 can be readily placed within a transportation container/vehicle.
  • the receptacles 20 can even be made deeper and such that a greater number can be stacked on one another, and the entire stack of receptacles 20 can be placed on its side.
  • the receptacles 20 can be filled with filtered seawater to a point where a top rim 22 of the receptacle 20 is at a height above water which is sufficient to prevent regular waves (ie. not waves from torrential storms) from entering the receptacle 20.
  • buoyancy of the receptacle 20 is adjustable by pumping water in and out of the receptacle 20, this ensures that the height of the top rim 22 of the receptacle 20 can be configured at a desired height above the water level.
  • FIG 2 there is shown a top view ( Figure 2(a)) and a side view ( Figure 2(b)) of the receptacles 20 when deployed for use in water.
  • the receptacles 20 are link-joined together along a direction of incoming waves, and thus, they are link-joined along a longitudinal direction.
  • the receptacles 20 are link joined together in a main direction of the waves, so as to be able to ride with incoming waves.
  • the receptacles 20 can also be linked joined together in a latitudinal direction so as to provide for flexibility in orientation.
  • the receptacles 20 are further strengthened around their top rim 22 by wooden planks 24 used to link the receptacles 20.
  • the wooden planks 24 are used as they are rigid and possess a certain extent of flexure.
  • the wooden planks 24 are also readily available and easily replaced at a reasonable cost.
  • the interlinking of a plurality of receptacles 20 creates a substantially unsinkable structure 30 raised high out of the water with a buoyancy that allows the structure 30 to ride incoming waves as shown in Figure 2(b). To increase buoyancy of the structure 30, water is pumped out of receptacles 20 at a centre or periphery of the structure 30.
  • the structure 30 includes a substantial plurality of receptacles 20, a small change in displacement of water results in a substantial lift to the structure 30. It should be appreciated that the receptacles 20 are individually relatively unstable when submerged in water, and the use of the wooden planks 24 substantially aids in improving the stability of the plurality of submerged receptacles 20.
  • the filtration system 50 ensures that the water stored in each receptacle 20 is habitable for fish bred in the receptacle 20.
  • the system 50 includes a low pressure floating filter 52 which incorporates a very low pressure filter membrane, for example a hollow fiber filter, and water (not stored in the receptacle 20) enters into a small bore water pipe 54 through a small manifold due to pressure differentials before the water in the small bore water pipe 54 is passed through the filter 52. It is appreciated that the filtration system 50 does not require a power source to operate in the desired manner. Some water from the receptacle 20 can be pumped out when necessary using energy generated using either a solar panel array or a backup power source, whereby the water is pumped out to ensure the pressure differential exists to enable circulation of water stored in the receptacle 20.
  • Figure 4 shows an air lift filter 60 which can be used in the receptacle 20.
  • Figure 4(a) shows a lower side perspective view
  • Figure 4(b) shows an upper side perspective view
  • Figure 4(c) shows a top perspective view.
  • the air lift filter 60 is used to oxygenate and circulate water within the receptacle 20 using air bubbles such as, for example, atmospheric air, oxygen, and ozone.
  • the air lift filter 60 includes a central channel 61, an air tube 63 and an air injector 65. However, water entering the device 60 via a first end 59 of the central channel 61 which may contain filter media.
  • the central channel 61 may include a UV tube 200 (shown in Figure 9) mounted along at least part of a length of the central channel 61,
  • the UV tube 200 enables UV disinfection of contents passing through the central channel 61, and is powered by, for example, a mains power source, a portable power source, a so!ar power source and so forth.
  • the UV tube 200 shown in Figure 9 is part of a UV radiation generating apparatus 198.
  • the UV radiation generating apparatus 198 is powered by a battery (not shown) which uses a DC inverter ballast 202 to convert the battery voltage to the right voltage and frequency.
  • the UV tube 200 is linked to the DC inverter ballast 202 using a waterproofed two-part connector 204, 206.
  • the air lift filter 60 also includes a filter tray 62, the filter tray 62 being mounted to a second end 63 of the central channel 61, The filter tray 62 will typically be located at a position around a water level of water stored in the receptacle 20.
  • the filter tray 62 has a base 64 which is porous, the base 64 having openings of any shape measuring from approximately 0,5cm to approximately 3cm (across the largest portion of each opening).
  • the base 64 of the filter tray 62 enables detritus which exits from a mouth 66 of the central channel 61 to be trapped after filtration at the base 64 by at least one filter layer.
  • a filter layer can be made from, for example, reticulated foam of differing porosity, a filter wool, a bio-degradeable gunny sack, stainless steel metal sieve, and other filter materials.
  • Each filter layer can also be a bio-filtration layer. When there is a plurality of filter layers, they are typically arranged in a stacked configuration and each of the filter layers can have different filtration properties.
  • FIG. 7 there is shown a plurality of filter layers 110(a), 110(b), 110(c) with different filtration properties arranged in a stacked configuration in the filter tray 62.
  • marine organisms eg. sea cucumbers
  • the filter tray 62 can also include a biodegradable mat which is able to store/retain helpful bacteria extracted from the water, Another alternative is for both the marine organisms and the biodegradable mat to be placed on the filter 62.
  • filter tray 62 is shown to be circular in Figure 4, it can be of any other shape, such as, for example, elliptical, polygonal and the like.
  • An alternative filter tray 100 is shown in Figure 6. It is appreciated that the main difference of the alternative filter tray 100 with the filter tray 62 lies in a perforated base 104 and a floatation ring 106.
  • the alternative filter tray 100 enables the air lift filter 60 to have increased buoyancy (because of the floatation ring 106), and a wider variety of media can be used on the alternative filter tray 100, such as, for example, a sand bed used to grow seaweed/algae for natural filtration, at least one layer of bio-filtration mat and so forth.
  • each of the bio-filtration mats has different filtration properties.
  • the floatation ring 106 may also include a resealable hole (not shown) to further adjust a buoyancy of the air lift filter 60.
  • FIG 5 shows a schematic diagram of a system 100 for farming fish.
  • the system 100 includes a plurality of receptacles 20 arranged in a manner as shown in Figure 2, and whereby each receptacle 20 includes the filtration system 50 and at least one aeration device 60.
  • each receptacle 20 includes the filtration system 50 and at least one aeration device 60.
  • the system 100 will be easily set up due to ease of transportation of the receptacles 20, and the filtration system 50 and the air lift filter 60.
  • the use of the filtration system 50 and the air lift filter 60 ensures that the system 100 provides a fish farm which is robust, not labour intensive and not power intensive.
  • the issue of uncontrollable killing of fish stocks is also diminished as the water quality in each receptacle 20 is continually controlled within each receptacle 20 to ensure continually desirable living conditions for fish stocks.
  • the system 100 is also able to be up-scaled or down-scaled depending on user needs.
  • Figure 8 shows the system 100 with mounting structures 120 in place to provide power from solar energy.
  • the mounting structures 120 are anchored to the top rim 22 of each of the receptacles 20 in the system 100, and the mounting structures 120 are configured to support placement of solar panels for generating power for use by the system 100. This ensures that the system 100 is self-sufficient in relation to power requirements.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Zoology (AREA)
  • Physical Water Treatments (AREA)

Abstract

L'invention concerne un système de pisciculture comprenant une pluralité de réceptacles liés ensemble au niveau de leurs bords respectifs par une pluralité de planches en bois pour former une structure pratiquement insubmersible. Chacun de la pluralité de réceptacles peut également comprendre au moins un système de filtration et au moins un filtre à injection d'air, où le filtre à injection d'air comprend un canal central pour le passage de l'eau entrant depuis une première extrémité du canal central et un plateau filtre monté à une seconde extrémité du canal central.
PCT/SG2014/000576 2014-03-24 2014-12-05 Système et composants pour la pisciculture WO2015147743A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SG10201400899Q 2014-03-24
SG10201400899Q 2014-03-24

Publications (1)

Publication Number Publication Date
WO2015147743A1 true WO2015147743A1 (fr) 2015-10-01

Family

ID=54196084

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SG2014/000576 WO2015147743A1 (fr) 2014-03-24 2014-12-05 Système et composants pour la pisciculture

Country Status (1)

Country Link
WO (1) WO2015147743A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO344194B1 (no) * 2018-11-16 2019-10-14 Oxyvision As Anordning for forsyning av vann til oppdrettsmerd
GB2591070A (en) * 2019-08-30 2021-07-21 Kerr Mac Aquaculture Solutions Ltd Improvements in or relating to filtering apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1175612A (ja) * 1997-09-02 1999-03-23 Naotaka Nakamura 水面に浮く水面位上部濾過装置
GB2366173A (en) * 2000-08-26 2002-03-06 Reef One Ltd Aquarium with filtration device
US20040123809A1 (en) * 2000-07-03 2004-07-01 Shlomo Klein Apparatus for breeding fish in open sea
GB2437637A (en) * 2006-04-24 2007-10-31 Bennex As Buoy for use in an offshore fish farm
US20100224135A1 (en) * 2004-06-02 2010-09-09 Aquaculture Engineering Group Ltd. Offshore aquaculture system
WO2013105078A1 (fr) * 2012-01-12 2013-07-18 Sunadim Budiprawira Système de cage flottante en filet de polyéthylène (pe) démontable multigonale et procédé de fabrication

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1175612A (ja) * 1997-09-02 1999-03-23 Naotaka Nakamura 水面に浮く水面位上部濾過装置
US20040123809A1 (en) * 2000-07-03 2004-07-01 Shlomo Klein Apparatus for breeding fish in open sea
GB2366173A (en) * 2000-08-26 2002-03-06 Reef One Ltd Aquarium with filtration device
US20100224135A1 (en) * 2004-06-02 2010-09-09 Aquaculture Engineering Group Ltd. Offshore aquaculture system
GB2437637A (en) * 2006-04-24 2007-10-31 Bennex As Buoy for use in an offshore fish farm
WO2013105078A1 (fr) * 2012-01-12 2013-07-18 Sunadim Budiprawira Système de cage flottante en filet de polyéthylène (pe) démontable multigonale et procédé de fabrication

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO344194B1 (no) * 2018-11-16 2019-10-14 Oxyvision As Anordning for forsyning av vann til oppdrettsmerd
GB2591070A (en) * 2019-08-30 2021-07-21 Kerr Mac Aquaculture Solutions Ltd Improvements in or relating to filtering apparatus

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