Abstract: A water treatment apparatus (1), the apparatus (1) comprises a fluid inlet (2), a first MBBR (4) and a second MBBR (5) and a fluid outlet (3), and a controller (C1), wherein the first MBBR (4) and second MBBR (5) are connected in series such that water to be treated flows from the inlet (2) through the first MBBR (4) to the second MBBR (5) and thence to the outlet (3) and wherein the controller or control means (C1) is operable to change the flow direction such that water to be treated flows from the inlet (2) to the second MBBR (5) then to the first MBBR (4) and thence to the outlet (3).

Abstract: The present invention is directed to a first farming plant including a central tank and one or more surrounding tanks, where the central tank is used for water treatment and the one or more surrounding tanks are used for the farming of fish. The fish farming plan may also include one or more flow applicators, whereby the flow rate of the water in the surrounding tanks are individually independent of the water exchange rate. The fish farming plant may include several movable permeable section walls in each of the surrounding tanks dividing each surrounding tank into tank sections. Each surrounding tank is equipped with one or more outlets and one or two inlets, and a substantially horizontal/laminar flow structure of the water in each one of the surrounding tanks is provided.

Abstract: A device (1) for separating segments (2) in a tank. The tank system includes a circular tank system with water flow for the farming of fish, said device being movable and comprising a plurality of preferably two element units, which are joined so as to form a V-shape seen from above. Further, the invention comprises the use of the device for the farming of edible fish.

Abstract: The present invention is directed to a first farming plant including a central tank and one or more surrounding tanks, where the central tank is used for water treatment and the one or more surrounding tanks are used for the farming of fish. The fish farming plan may also include one or more flow applicators, whereby the flow rate of the water in the surrounding tanks are individually independent of the water exchange rate. The fish farming plant may include several movable permeable section walls in each of the surrounding tanks dividing each surrounding tank into tank sections. Each surrounding tank is equipped with one or more outlets and one or two inlets, and a substantially horizontal/laminar flow structure of the water in each one of the surrounding tanks is provided.

Abstract: A device (1) for separating segments (2) in a tank. The tank system includes a circular tank system with water flow for the farming of fish, said device being movable and comprising a plurality of preferably two element units, which are joined so as to form a V-shape seen from above. Further, the invention comprises the use of the device for the farming of edible fish.

Abstract: The present invention is directed to a first farming plant including a central tank and one or more surrounding tanks, where the central tank is used for water treatment and the one or more surrounding tanks are used for the farming of fish. The fish farming plant may also include one or more flow applicators, whereby the flow rate of the water in the surrounding tanks are individually independent of the water exchange rate. The fish farming plant may include several movable permeable section walls in each of the surrounding tanks dividing each surrounding tank into tank sections. Each surrounding tank is equipped with one or two outlets and one or two inlets, and a substantially horizontal/laminar flow structure of the water in each one of the surrounding tanks is provided.