At the Heart of the Largest Smolt Facility in Norway

Nordlaks is a Norwegian totally integrated firm that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. Surge has just lately completed the building of a model new smolt facility for fish as much as 1 pound at Innhavet in Hamarøy municipality. This RAS (recirculating aquaculture system) fish farm is the largest of its kind in Norway, with a particular focus on smolt welfare. The land-based facility has state-of-the-art gear for optimum biosecurity and sustainability. At the guts of the RAS course of, all recirculation pumps have been provided by Sulzer.
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water treatment loops. The dry-installed single-stage overhung pumps are equipped with semi-open impellers and single mechanical seals.
Five VUPX-0402 (602,312 gallons per hour at 10 ft 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 primary sections. Each section is independent from the others and includes its own full water therapy 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 removal of the primary suspended solid particles. It then falls into an MBBR (moving bed biofilm reactor) for TAN (total ammonium nitrogen) discount. After passing via 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 totally renewed each half an hour. The well-being of the smolts is highly dependent on a relentless flow of water through the ability. Downloadable of the recirculation pumps is, therefore, of paramount importance.
High total vitality efficiency of the RAS plant means a greater environmental footprint and reduced working prices. Consequently, the main parts of the water therapy loops should have top-class efficiencies, notably the recirculation pumps.
As a long-term supplier of apparatus (pumps and turbines) to other Nordlaks vegetation, Sulzer was involved at an early stage of the model new venture. In collaboration with the Momek Group, a big industrial service supplier in Scandinavia, the pumps had been fastidiously selected, not only to fulfil the requirements through the guarantee period, but to run optimally and economically during the whole lifetime of the site. For the recirculation of the brackish water, fifty AHLSTAR and BE course of pumps in duplex material have now been installed and are working constantly. In addition, 5 VUPX submersible propeller pumps are used on intermittent duty when the fish tanks are emptied through the transfer of smolts.
New Nordlaks fish farm in Innhavet, Norway.
By choosing to work with a trusted partner, the consumer made certain to get fast and permanent technical support, along with the most effective products. The recirculation pumps have the next main advantages:
Extremely excessive hydraulic efficiencies that by far exceed the strictest energy laws for water pumps. This means big vitality savings over time and smaller whole cost of ownership, obligation factors close to BEP (best efficiency points), low rotation speeds, and rigid baseplates grouted in concrete. The pump items are working smoothly with minimized vibration levels. Superior-grade material is used for all wetted elements. For the selection of pump materials in contact with brackish water, the long-term perspective favored duplex chrome steel rather than 316SS. Duplex steels have better design energy than austenitic stainless steels, in addition to higher corrosion, abrasion, and pitting resistance. In the top, upkeep costs and the danger of downtime are lowered.
Sulzer is a acknowledged provider within the fish farm market, with innovative and confirmed pumping, mixing, and aeration options, and supplies extremely energy-efficient products with low life-cycle prices and the smallest possible environmental footprint. As a cloth specialist in a broad range of fresh water, brackish water, seawater, and brine applications, we can provide pumps in forged iron, 316 stainless steel, duplex, tremendous duplex, SMO, and so forth. .
Water remedy system course of chart.
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