Marine Harvest Dalsfjord Marine Harvests, located at Dalsfjord near Volda-Norway, produces salmon smolt. Between 2009 and 2012 Krüger Kaldnes AS planned and delivered two plants to Dalsfjord for the production of more than 4 million salmon smolts per year. Each product line has its own separate water treatment system (RAS1 and RAS2).
They required the design and build of two separate low footprint RAS plants, both outdoor and indoor.
Facing the challenge of very limited available area, RAS1 was designed as an extremely compact plant. Less than 200m² is used to treat 2850m³ water. Kaldnes® RAS is located in a separate building, while the fish tanks are placed outside. RAS 2 is an operator-friendly indoor water treatment plant with good access to the equipment in a compact design. Both plants are highly automated.
RAS 1 has a capacity of 3000kg per day feeding, with a total hydraulic capacity of 4275m³ /hour. It is an extremely compact plant with a footprint of less than 200m² including deepshaft oxygen cones. RAS 2 has a capacity of 2000kg per day feeding, with a total hydraulic capacity of 2400m³ /hour and a footprint of less than 250m².