WO2008134993A1 - Becken zur fischzucht - Google Patents
Becken zur fischzucht Download PDFInfo
- Publication number
- WO2008134993A1 WO2008134993A1 PCT/DE2007/000807 DE2007000807W WO2008134993A1 WO 2008134993 A1 WO2008134993 A1 WO 2008134993A1 DE 2007000807 W DE2007000807 W DE 2007000807W WO 2008134993 A1 WO2008134993 A1 WO 2008134993A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- basin
- water
- bioreactor
- zone
- flow
- Prior art date
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
-
- 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
Definitions
- the invention relates to a basin for fish farming, in particular fish breeding and / or fish mast.
- the basin is of elongated rectangular plan. It is maintained in a constant water flow in the basin longitudinal direction.
- a flooded bioreactor with a gassing section below, through which oxygen-containing gas is supplied.
- the basin has a filter circuit with a mechanical filter.
- Such a basin is known from WO 2000/21 360 Al and WO 2002/07 510 Al. It has a water cycle in which the entire water in the basin is conveyed - as it were in the main circuit - by means of a mammoth pump via a filter external to the basin.
- the pump capacity to be installed and the ongoing operating costs are high.
- the object of the invention is to make the water cycle in a tank of the type mentioned more effective.
- the basin has a sedimentation zone upstream of the bioreactor in the flow direction of the water, in which the bottom of the basin is recessed. From the sedimentation zone, a partial flow of water is pumped through a mechanical filter by means of a pump, so to speak in shunt. From there, the filtered water returns to the flow of the bioreactor.
- the invention aims to operate the bioreactor as clean as possible water, which is composed of the clear water above the sedimentation zone and the partial flow of the filter circuit.
- the clear ⁇ run can make up about 80% of the water volume flow through the bioreactor.
- the pump power to be installed and the ongoing operating effort for the filter pitch circle are correspondingly low.
- the bioreactor may be a fixed bed reactor. However, preferred is a fluidized bed reactor (fluidized bed reactor).
- a mammoth pump effect on the water which alone may be sufficient to maintain the water flow in the basin longitudinal direction.
- a pump unit may also be provided for this purpose.
- the depression of the pelvic floor in the region of the sedimentation zone causes an enlargement of the passage cross-section and a slowing down of the water flow, through which an enrichment of the water with sedimenting impurities takes place.
- the suction effect of the pump which conveys this water in the partial flow to the filter, counteracts the slowing down of the water flow. There may even be an acceleration of the water flow.
- For the pump of the filter pitch circle is both a continuous operation, as well as a cyclic operation into consideration.
- the bottom of the basin is preferably flat everywhere.
- the mechanical filter located in the filter pitch is preferably a drum filter.
- bioreactor in the flow direction of water is followed by a degassing zone in which the What is ⁇ ser enriched with oxygen-containing gas.
- the sauerstoffhalti ⁇ ge gas drives unwanted other gases out of the water.
- the degassing zone in Strö ⁇ flow direction of water is followed by a Ozonticianszone and / or UV illumination zone. Ozonization and / or UV lighting are used to disinfect the water.
- the basin has at least one barrier installed transversely therein, the passages of well-defined has niertem cross-section.
- the passages are dimensioned so that the fish can not pass them.
- the barrier (s) thus serve to separate the fish stock in compartments of the basin.
- the flow velocity of the water in the compartments can be adapted to fish species and fish size.
- Fish have an optimal migration speed in the water. They should be able to move with the flow of water as well as against the flow of water and not be drifted.
- the shape and / or size of the passage openings in the / the barrier (s) can be adjusted.
- the barrier (s) comprise a gassing part for enriching the water with oxygen-containing gas.
- a preferred plant for fish farming especially fish rearing and / or fish mast, has pairs of juxtaposed, countercurrently flowed pool of the aforementioned type, which communicate with each other, so that a circulation flow of water over the basin leads.
- each tank of the plant has a sedimentation zone, a bioreactor and a degassing zone.
- the mechanical filter, the ozonation zone, the UV illumination zone and the pump unit to maintain the circulation flow need only be present once for a pair of basins.
- additional substreams are heterotrophic denitrification and / or autotrophic nitrate removal and / or pH stabilization and / or screening and / or flocculation of the water.
- FIG. 2 shows a longitudinal section through a basin in the region of a sedimentation zone according to II-II of Fig. 1.
- Fig. 3 is a top plan view of the pool looking towards III of Fig. 2;
- FIG. 4 shows a cross section through the basin according to IV-IV of Fig. 1.
- FIG. 5 to Fig. 8 front views of barriers for subdivision of the pelvis.
- the fish farm has two parallel adjacent Bekchen 10 of oblong-rectangular plan.
- the tanks 10 are countercurrently flowed through in the longitudinal direction of water 12. They are at their transverse ends in communication with each other, so that a constant circulation flow over the tank 10 leads.
- the basins 10 have at opposite ends in each case a transversely installed therein bioreactor 14 in the form of a flooded fluidized bed reactor (fluidized bed reactor), below which there is a gassing for supplying oxygen-containing gas. From the supply of this gas, a mammoth pumping effect on the water, which contributes to the maintenance of the circulation flow over the tanks 10.
- a pump unit with two parallel arranged, identical pump 16 is provided, which provide redundancy in case of failure.
- the bioreactors are preceded by a sedimentation zone 18 in the flow direction of the water, in which the bottom of the basin 10 is recessed.
- the depression has the shape of a rectangular truncated pyramid with a water-inflow-side steep lateral flank 20, a water-fl ow side flatter transverse flank 22 and similarly flat longitudinal flanks 24.
- the filter circuit via the drum filter 28 is a partial circuit branched off from the main flow of the water, over which approximately 20% of the circulating water mass passes. The vast majority of the water reaches the bioreactors 14 in the clear run above the sedimentation zones 18.
- the bioreactors 14 are downstream of the flow path of the water degassing 30, in which an enrichment of the water with oxygen-containing gas is carried out by the other, undesirable gases.
- the degassing zones 30 extend transversely at the interconnected ends of the basins 10.
- the degassing zone 30 is shortened in favor of the pump unit. Between the degassing zone 30 and the pump unit is a UV illumination zone 32 with submerged UV low pressure lights.
- a non-external denitrification stage 34 is indicated in FIG. 1, which lies in a separate pitch circle of the water (not shown).
- the fish tanks are un ⁇ divided by transverse barriers 36 - 42 incorporated therein.
- the barriers 36 - 42 have openings of different shape and size that the fish can not pass.
- the barriers 36-42 are used to separate the fish stock in compart- ments 1 - 6 of the basins 10 and to adjust the flow rate of the water in compartments 1 - 6.
- the barriers 36-42 are rectangular plates with closed sections, lattice sections and / or mesh sections. Outside at the upper edge of the barriers 36-42 are two eyelets 44 for the attack of a hoist.
- the barrier 36 according to FIG. 5 is closed at medium height. She has below a comb grid 46 with short tines and above a comb grid 48 with long tines.
- the barrier 38 according to FIG. 6 consists of comb grids 50, which are connected to each other at parallel transverse webs 52.
- the barrier 40 according to FIG. 7 is closed at the bottom and a perforated plate at the top.
- the barrier 42 according to FIG. 8 is a perforated plate as a whole.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112007003479T DE112007003479A5 (de) | 2007-05-05 | 2007-05-05 | Becken zur Fischzucht |
PCT/DE2007/000807 WO2008134993A1 (de) | 2007-05-05 | 2007-05-05 | Becken zur fischzucht |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2007/000807 WO2008134993A1 (de) | 2007-05-05 | 2007-05-05 | Becken zur fischzucht |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008134993A1 true WO2008134993A1 (de) | 2008-11-13 |
Family
ID=38925506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2007/000807 WO2008134993A1 (de) | 2007-05-05 | 2007-05-05 | Becken zur fischzucht |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE112007003479A5 (de) |
WO (1) | WO2008134993A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202009009614U1 (de) * | 2009-07-10 | 2010-11-25 | Gaus, Werner | Multi-funktionaler Standablaufkasten für Produktionsbecken in der Aquakultur |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3827713A1 (de) * | 1988-08-16 | 1990-02-22 | Metz Mannheim Gmbh | Fischbecken zur intensiv-fischmast |
US5353745A (en) * | 1992-09-29 | 1994-10-11 | Fahs Ii Richard W | Aquaculture system and methods for using the same |
DE19521037A1 (de) * | 1995-06-09 | 1996-12-12 | H J Dipl Ing Schultze | Becken zur Fischzucht |
WO2000021360A1 (de) | 1998-10-13 | 2000-04-20 | United Food Engineering Gmbh | Becken zur fischaufzucht oder intensivmast von fischen |
WO2002007510A1 (de) | 2000-07-20 | 2002-01-31 | United Food Engineering Gmbh | Becken zur fischbrut, fischaufzucht oder intensivmast von fischen |
WO2003022041A1 (en) * | 2001-09-12 | 2003-03-20 | Cumminscorp Limited | An aquaculture system |
-
2007
- 2007-05-05 WO PCT/DE2007/000807 patent/WO2008134993A1/de active Application Filing
- 2007-05-05 DE DE112007003479T patent/DE112007003479A5/de not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3827713A1 (de) * | 1988-08-16 | 1990-02-22 | Metz Mannheim Gmbh | Fischbecken zur intensiv-fischmast |
US5353745A (en) * | 1992-09-29 | 1994-10-11 | Fahs Ii Richard W | Aquaculture system and methods for using the same |
DE19521037A1 (de) * | 1995-06-09 | 1996-12-12 | H J Dipl Ing Schultze | Becken zur Fischzucht |
WO2000021360A1 (de) | 1998-10-13 | 2000-04-20 | United Food Engineering Gmbh | Becken zur fischaufzucht oder intensivmast von fischen |
WO2002007510A1 (de) | 2000-07-20 | 2002-01-31 | United Food Engineering Gmbh | Becken zur fischbrut, fischaufzucht oder intensivmast von fischen |
WO2003022041A1 (en) * | 2001-09-12 | 2003-03-20 | Cumminscorp Limited | An aquaculture system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202009009614U1 (de) * | 2009-07-10 | 2010-11-25 | Gaus, Werner | Multi-funktionaler Standablaufkasten für Produktionsbecken in der Aquakultur |
Also Published As
Publication number | Publication date |
---|---|
DE112007003479A5 (de) | 2010-01-28 |
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