Device for fish farming and use thereof

Device for fish farming and use thereof

  • CN 105,357,958 B
  • Filed: 05/02/2014
  • Issued: 10/30/2020
  • Est. Priority Date: 05/14/2013
  • Status: Active Grant
First Claim
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1. A fish farming plant (1) comprising a central tank (3) and one or more surrounding tanks (2), wherein each surrounding tank (2) has respective tank walls for accommodating water therebetween, which water surrounds the central tank and any intermediate surrounding tanks, wherein the central tank (3) is used for water treatment, and wherein the one or more surrounding tanks are used for fish farming, and the fish farming plant (1) is further provided with a flow applicator (8), whereby the water flow velocity in each surrounding tank (2) can be individually independent of the water exchange velocity, and wherein each surrounding tank (2) is provided with one or two outlets (30) and one or two inlets (29), irrespective of the number of tank sections into which each surrounding tank (2) is divided, the water treatment comprising biofiltration at a biofilter (6), the method is characterized in that:

  • -each encircling groove (2) comprises a plurality of transverse movable and permeable section walls (12) which are steplessly movable, wherein each encircling groove (2) is divided into a plurality of adjustable groove sections, the separation between two adjacent groove sections remaining intact during movement,-the flow applicator (8) is configured to increase the water flow rate to a desired level above the water exchange rate;

    -and wherein the fish farming plant (1) is formed with one or more radially through-going tank sections for not farming fish for placing flow applicators (8) in the one or more surrounding tanks and piping to an outlet (30), an inlet (29) and a water treatment system, such that each surrounding tank is capable of providing a substantially horizontal/laminar water flow structure of potentially individually adjustable horizontal velocity in the fish farming plant (1).

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