At the Heart of the Largest Smolt Facility in Norway

Nordlaks is a Norwegian totally built-in company that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has lately accomplished the building of a new smolt facility for fish up to 1 pound at Innhavet in Hamarøy municipality. This RAS (recirculating aquaculture system) fish farm is the most important of its type in Norway, with a special concentrate on smolt welfare. เกจวัดแรงดันสูง -based facility has state-of-the-art gear for optimum biosecurity and sustainability. At the heart of the RAS process, all recirculation pumps have been provided by Sulzer.
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water therapy 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 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 primary sections. Each part is impartial from the others and contains its own complete water remedy system in a semi-closed loop (98 % recirculation plus 2 percent make-up water). The brackish water from the fish tanks first flows by gravity to a rotating drum filter for the removal of the main suspended solid particles. It then falls into an MBBR (moving mattress biofilm reactor) for TAN (total ammonium nitrogen) discount. After passing by way of a countercurrent degasser for the stripping of nitrogen and carbon dioxide, the handled water is lastly pumped to some head tanks, prior to oxygenation and return to the fish tanks.
In every fish tank, the water is fully renewed each half an hour. The well-being of the smolts is highly dependent on a relentless move of water through the facility. The reliability of the recirculation pumps is, subsequently, of paramount importance.
High overall power performance of the RAS plant means a greater environmental footprint and lowered operating costs. Consequently, the principle parts of the water remedy loops will have to have top-class efficiencies, significantly the recirculation pumps.
As a long-term supplier of kit (pumps and turbines) to other Nordlaks crops, Sulzer was involved at an early stage of the brand new project. In collaboration with the Momek Group, a large industrial service supplier in Scandinavia, the pumps were fastidiously chosen, not only to fulfil the necessities during the warranty interval, however to run optimally and economically during the entire lifetime of the site. For the recirculation of the brackish water, fifty AHLSTAR and BE course of pumps in duplex materials have now been put in and are operating continuously. In addition, five VUPX submersible propeller pumps are used on intermittent duty when the fish tanks are emptied during the transfer of smolts.
New Nordlaks fish farm in Innhavet, Norway.
By selecting to work with a trusted partner, the shopper made certain to get fast and permanent technical help, along with the most effective merchandise. The recirculation pumps have the next major advantages:
Extremely excessive hydraulic efficiencies that by far exceed the strictest vitality rules for water pumps. This means huge energy savings over time and smaller whole value of ownership, responsibility points near 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 material is used for all wetted components. For the selection of pump materials involved with brackish water, the long-term perspective favored duplex stainless steel somewhat than 316SS. Duplex steels have higher design power than austenitic stainless steels, in addition to higher corrosion, abrasion, and pitting resistance. In the top, upkeep prices and the risk of downtime are decreased.
Sulzer is a recognized supplier in the fish farm market, with innovative and confirmed pumping, mixing, and aeration solutions, and supplies highly energy-efficient merchandise with low life-cycle costs and the smallest potential environmental footprint. As a material specialist in a variety of fresh water, brackish water, seawater, and brine functions, we can offer pumps in cast iron, 316 stainless steel, duplex, super duplex, SMO, and so on. .
Water remedy system process chart.
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