At the Heart of the Largest Smolt Facility in Norway

Nordlaks is a Norwegian fully integrated firm that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has lately accomplished the building 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 biggest of its sort in Norway, with a special concentrate on smolt welfare. The land-based facility has state-of-the-art equipment for optimum biosecurity and sustainability. At the heart of the RAS process, all recirculation pumps were equipped by Sulzer.
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water remedy loops. First -installed single-stage overhung pumps are geared up 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 various capacities (92,000 to 264,000 gallons) in 5 separate primary sections. Each section is impartial from the others and consists of its personal full water treatment 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 primary 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 treated water is finally pumped to some head tanks, previous to oxygenation and return to the fish tanks.
In every fish tank, the water is totally renewed each half an hour. The well-being of the smolts is extremely depending on a continuing flow of water through the power. The reliability of the recirculation pumps is, therefore, of paramount significance.
High overall power performance of the RAS plant means a better environmental footprint and reduced operating costs. Consequently, the principle parts of the water remedy loops must have top-class efficiencies, significantly the recirculation pumps.
As a long-term provider of equipment (pumps and turbines) to other Nordlaks vegetation, Sulzer was concerned at an early stage of the brand new challenge. In collaboration with the Momek Group, a large industrial service supplier in Scandinavia, the pumps had been carefully selected, not solely to fulfil the requirements in the course of the guarantee interval, however to run optimally and economically during the entire lifetime of the positioning. For In less than of the brackish water, fifty AHLSTAR and BE course of pumps in duplex material have now been installed and are operating continuously. In addition, 5 VUPX submersible propeller pumps are used on intermittent responsibility when the fish tanks are emptied during the transfer 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 permanent technical assist, in addition to the most effective products. The recirculation pumps have the next major advantages:
Extremely high hydraulic efficiencies that by far exceed the strictest energy laws for water pumps. This means big power savings over time and smaller total cost of ownership, obligation 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 parts. For the choice of pump materials in touch with brackish water, the long-term perspective favored duplex stainless-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 chance of downtime are decreased.
Sulzer is a acknowledged provider in the fish farm market, with innovative and proven pumping, mixing, and aeration options, and supplies extremely energy-efficient merchandise with low life-cycle prices and the smallest attainable environmental footprint. As a material specialist in a variety of fresh water, brackish water, seawater, and brine purposes, we are able to supply pumps in forged iron, 316 chrome steel, duplex, super duplex, SMO, etc. .
Water therapy system process chart.
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