At the Heart of the Largest Smolt Facility in Norway

Nordlaks is a Norwegian fully built-in company that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has recently completed the building of a brand new smolt facility for fish up to 1 pound at Innhavet in Hamarøy municipality. This RAS (recirculating aquaculture system) fish farm is the largest of its sort in Norway, with a special focus on smolt welfare. The land-based facility has state-of-the-art gear for optimum biosecurity and sustainability. At the center of the RAS process, all recirculation pumps were supplied by Sulzer.
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water remedy loops. The dry-installed single-stage overhung pumps are outfitted with semi-open impellers and single mechanical seals.
Five VUPX-0402 (602,312 gallons per hour at 10 toes of head) submersible propeller pumps (intermittent duty) for the emptying of fish tanks.
The Innhavet RAS plant has thirty-four fish tanks of different capacities (92,000 to 264,000 gallons) in 5 separate major sections. Each part is independent from the others and includes its own full water remedy system in a semi-closed loop (98 p.c recirculation plus 2 p.c make-up water). The brackish water from the fish tanks first flows by gravity to a rotating drum filter for the elimination of the principle suspended strong particles. It then falls into an MBBR (moving mattress biofilm reactor) for TAN (total ammonium nitrogen) reduction. After passing through a countercurrent degasser for the stripping of nitrogen and carbon dioxide, the handled water is finally pumped to some head tanks, prior to oxygenation and return to the fish tanks.
In each fish tank, the water is absolutely renewed every half an hour. The well-being of the smolts is extremely depending on a relentless flow of water via the ability. The reliability of the recirculation pumps is, due to this fact, of paramount significance.
High general vitality performance of the RAS plant means a greater environmental footprint and lowered working costs. Consequently, the primary elements of the water treatment loops must have top-class efficiencies, significantly the recirculation pumps.
As a long-term provider of kit (pumps and turbines) to different Nordlaks vegetation, Sulzer was concerned at an early stage of the model new project. In collaboration with the Momek Group, a big industrial service provider in Scandinavia, the pumps were rigorously selected, not solely to fulfil the requirements in the course of the guarantee interval, but to run optimally and economically during the whole lifetime of the location. For the recirculation of the brackish water, fifty AHLSTAR and BE course of pumps in duplex materials have now been installed and are operating constantly. In addition, five VUPX submersible propeller pumps are used on intermittent obligation when the fish tanks are emptied in the course of the switch of smolts.
New Nordlaks fish farm in Innhavet, Norway.
By choosing to work with a trusted partner, the consumer made sure to get fast and permanent technical support, along with the best products. The recirculation pumps have the next major benefits:
Extremely high hydraulic efficiencies that by far exceed the strictest energy laws for water pumps. เกจวัดแรงดันถังลม means huge energy savings over time and smaller total price of possession, responsibility factors close to BEP (best efficiency points), low rotation speeds, and rigid baseplates grouted in concrete. The pump units are working smoothly with minimized vibration ranges. Superior-grade materials is used for all wetted parts. For the choice of pump materials involved with brackish water, the long-term perspective favored duplex chrome steel somewhat than 316SS. Duplex steels have higher design strength than austenitic stainless steels, in addition to larger corrosion, abrasion, and pitting resistance. In the tip, maintenance prices and the danger of downtime are reduced.
Sulzer is a acknowledged supplier within the fish farm market, with revolutionary and confirmed pumping, mixing, and aeration options, and offers highly energy-efficient merchandise with low life-cycle prices and the smallest possible environmental footprint. As a cloth specialist in a variety of recent water, brackish water, seawater, and brine applications, we can provide pumps in cast iron, 316 stainless steel, duplex, tremendous duplex, SMO, and so on. .
Water treatment system course of chart.
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