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 just lately completed the constructing of a new smolt facility for fish as a lot as 1 pound at Innhavet in Hamarøy municipality. This RAS (recirculating aquaculture system) fish farm is the largest of its sort in Norway, with a particular focus on smolt welfare. The land-based facility has state-of-the-art equipment for optimal biosecurity and sustainability. At the center of the RAS course of, all recirculation pumps have been supplied by Sulzer.
PROJECT DATA
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water treatment loops. The dry-installed single-stage overhung pumps are outfitted with semi-open impellers and single mechanical seals.
No obligation -0402 (602,312 gallons per hour at 10 toes of head) submersible propeller pumps (intermittent duty) for the emptying of fish tanks.
THE CHALLENGE
The Innhavet RAS plant has thirty-four fish tanks of different capacities (92,000 to 264,000 gallons) in five separate major sections. Each section is independent from the others and includes its own full water remedy system in a semi-closed loop (98 % recirculation plus 2 % make-up water). The brackish water from the fish tanks first flows by gravity to a rotating drum filter for the removing of the primary suspended stable particles. It then falls into an MBBR (moving bed biofilm reactor) for TAN (total ammonium nitrogen) reduction. After passing by way of a countercurrent degasser for the stripping of nitrogen and carbon dioxide, the treated water is finally pumped to some head tanks, prior to oxygenation and return to the fish tanks.
In each fish tank, the water is fully renewed every half an hour. The well-being of the smolts is highly dependent on a constant flow of water by way of the power. The reliability of the recirculation pumps is, subsequently, of paramount significance.
High overall vitality efficiency of the RAS plant means a greater environmental footprint and reduced working costs. Consequently, the primary components of the water remedy loops will need to have top-class efficiencies, significantly the recirculation pumps.
THE SOLUTION
As a long-term provider of kit (pumps and turbines) to other Nordlaks vegetation, Sulzer was involved at an early stage of the new venture. In collaboration with the Momek Group, a big industrial service provider in Scandinavia, the pumps had been rigorously chosen, not solely to fulfil the requirements through the warranty period, but to run optimally and economically throughout the entire lifetime of the site. For the recirculation of the brackish water, fifty AHLSTAR and BE process pumps in duplex material have now been installed and are working constantly. In addition, 5 VUPX submersible propeller pumps are used on intermittent responsibility when the fish tanks are emptied during the switch of smolts.
New Nordlaks fish farm in Innhavet, Norway.
CUSTOMER BENEFIT
By selecting to work with a trusted companion, the client made sure to get fast and everlasting technical assist, along with one of the best products. The recirculation pumps have the next major advantages:
Extremely excessive hydraulic efficiencies that by far exceed the strictest energy regulations for water pumps. This means big energy savings over time and smaller total price of ownership, obligation points near BEP (best effectivity points), low rotation speeds, and rigid baseplates grouted in concrete. The pump units are working smoothly with minimized vibration levels. Superior-grade material is used for all wetted parts. For the selection of pump material in touch with brackish water, the long-term perspective favored duplex stainless-steel quite than 316SS. Duplex steels have better design strength than austenitic stainless steels, as nicely as greater corrosion, abrasion, and pitting resistance. In the end, upkeep costs and the risk of downtime are decreased.
Sulzer is a acknowledged provider in the fish farm market, with innovative and confirmed pumping, mixing, and aeration solutions, and supplies highly energy-efficient products with low life-cycle prices and the smallest attainable environmental footprint. As a cloth specialist in a wide range of contemporary water, brackish water, seawater, and brine purposes, we will supply pumps in cast iron, 316 stainless-steel, duplex, super duplex, SMO, etc. .
Water treatment system course of chart.
FOR MORE INFORMATION
For more information on Oerlikon Balzers and their household of DLC floor options, please visit https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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