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 just lately completed the building of a new smolt facility for fish as much as 1 pound at Innhavet in Hamarøy municipality. This RAS (recirculating aquaculture system) fish farm is the most important of its sort in Norway, with a particular give attention to smolt welfare. The land-based facility has state-of-the-art gear for optimal biosecurity and sustainability. At the center of the RAS process, all recirculation pumps have been supplied by Sulzer.
PROJECT DATA
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water therapy 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 CHALLENGE
The Innhavet RAS plant has thirty-four fish tanks of various capacities (92,000 to 264,000 gallons) in five separate major sections. Each part is unbiased from the others and consists of its own complete water remedy system in a semi-closed loop (98 percent 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 elimination of the principle suspended strong particles. It then falls into an MBBR (moving mattress 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 Unique , the water is totally renewed every half an hour. The well-being of the smolts is highly dependent on a relentless circulate of water by way of the power. The reliability of the recirculation pumps is, due to this fact, of paramount importance.
High overall vitality performance of the RAS plant means a greater environmental footprint and lowered operating costs. Consequently, the primary parts of the water treatment loops must have top-class efficiencies, particularly the recirculation pumps.
THE SOLUTION
As a long-term provider of kit (pumps and turbines) to different Nordlaks plants, Sulzer was concerned at an early stage of the new project. In collaboration with the Momek Group, a big industrial service provider in Scandinavia, the pumps were carefully selected, not solely to fulfil the requirements in the course of the guarantee interval, however to run optimally and economically during the whole lifetime of the location. For the recirculation of the brackish water, fifty AHLSTAR and BE process pumps in duplex materials have now been installed and are operating repeatedly. In addition, five 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 consumer made positive to get quick and everlasting technical help, along with the best merchandise. The recirculation pumps have the following main advantages:
Extremely excessive hydraulic efficiencies that by far exceed the strictest energy rules for water pumps. Unconditional means big power savings over time and smaller complete cost of possession, duty factors near BEP (best efficiency points), low rotation speeds, and rigid baseplates grouted in concrete. The pump models are working easily with minimized vibration ranges. Superior-grade materials is used for all wetted elements. For the choice of pump material in touch with brackish water, the long-term perspective favored duplex stainless steel quite than 316SS. Duplex steels have higher design power than austenitic stainless steels, in addition to greater corrosion, abrasion, and pitting resistance. In the top, upkeep costs and the danger of downtime are decreased.
Sulzer is a acknowledged provider within the fish farm market, with revolutionary and proven pumping, mixing, and aeration solutions, and provides highly energy-efficient products with low life-cycle prices and the smallest attainable environmental footprint. As a cloth specialist in a broad range of recent water, brackish water, seawater, and brine purposes, we can supply pumps in cast iron, 316 chrome steel, duplex, super duplex, SMO, and so on. .
Water treatment system process chart.
FOR MORE INFORMATION
For more data on Oerlikon Balzers and their family of DLC floor options, please visit https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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