At the Heart of the Largest Smolt Facility in Norway

Nordlaks is a Norwegian absolutely integrated company that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has recently completed the constructing of a model 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 particular concentrate 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 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 various capacities (92,000 to 264,000 gallons) in five separate major sections. Each part is impartial from the others and includes its personal full water therapy system in a semi-closed loop (98 percent 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 main suspended stable 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 lastly pumped to some head tanks, prior to oxygenation and return to the fish tanks.
In every fish tank, the water is totally renewed each half an hour. เพรสเชอร์เกจ -being of the smolts is highly depending on a relentless move of water through the power. The reliability of the recirculation pumps is, therefore, of paramount importance.
High general power performance of the RAS plant means a greater environmental footprint and reduced working prices. Consequently, the primary elements of the water remedy loops should have top-class efficiencies, significantly the recirculation pumps.

As a long-term supplier of kit (pumps and turbines) to different Nordlaks plants, Sulzer was involved at an early stage of the new project. In collaboration with the Momek Group, a large industrial service provider in Scandinavia, the pumps have been rigorously selected, not solely to fulfil the requirements through the warranty interval, but to run optimally and economically during the entire lifetime of the site. For the recirculation of the brackish water, fifty AHLSTAR and BE process pumps in duplex materials have now been put in and are working repeatedly. In addition, five VUPX submersible propeller pumps are used on intermittent duty when the fish tanks are emptied through the switch of smolts.
New Nordlaks fish farm in Innhavet, Norway.

By choosing to work with a trusted companion, the shopper made certain to get quick and everlasting technical assist, in addition to the most effective products. The recirculation pumps have the next main advantages:
Extremely excessive hydraulic efficiencies that by far exceed the strictest power regulations for water pumps. This means huge power financial savings over time and smaller complete cost of ownership, duty points near BEP (best efficiency points), low rotation speeds, and rigid baseplates grouted in concrete. The pump items 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 chrome steel quite than 316SS. Duplex steels have higher design strength than austenitic stainless steels, in addition to higher corrosion, abrasion, and pitting resistance. In the tip, maintenance costs and the risk of downtime are reduced.
Sulzer is a recognized supplier in the fish farm market, with revolutionary and confirmed pumping, mixing, and aeration solutions, and offers extremely energy-efficient merchandise with low life-cycle prices and the smallest attainable environmental footprint. As a material specialist in a wide range of recent water, brackish water, seawater, and brine purposes, we can supply pumps in forged iron, 316 stainless steel, duplex, tremendous duplex, SMO, etc. .
Water treatment system course of chart.

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