At the Heart of the Largest Smolt Facility in Norway

Nordlaks is a Norwegian fully integrated company that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has recently completed the constructing 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 biggest of its sort in Norway, with a special concentrate on smolt welfare. The land-based facility has state-of-the-art gear for optimum biosecurity and sustainability. At the heart of the RAS process, all recirculation pumps had been supplied by Sulzer.
PROJECT DATA
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water remedy loops. เพรสเชอร์เกจน้ำ -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 CHALLENGE
The Innhavet RAS plant has thirty-four fish tanks of various capacities (92,000 to 264,000 gallons) in five separate main sections. Each part is impartial from the others and consists of its own full water remedy system in a semi-closed loop (98 % 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 elimination of the main suspended solid particles. เกจวัดแรง falls into an MBBR (moving bed biofilm reactor) for TAN (total ammonium nitrogen) reduction. After passing through a countercurrent degasser for the stripping of nitrogen and carbon dioxide, the handled water is lastly pumped to some head tanks, previous to oxygenation and return to the fish tanks.
In each fish tank, the water is totally renewed each half an hour. The well-being of the smolts is highly depending on a constant circulate of water via the ability. The reliability of the recirculation pumps is, therefore, of paramount significance.
High total energy performance of the RAS plant means a greater environmental footprint and reduced operating costs. Consequently, the primary components of the water therapy loops must have top-class efficiencies, particularly the recirculation pumps.
THE SOLUTION
As a long-term provider of apparatus (pumps and turbines) to other Nordlaks plants, Sulzer was involved at an early stage of the model new venture. In collaboration with the Momek Group, a big industrial service supplier in Scandinavia, the pumps had been fastidiously chosen, not only to fulfil the requirements during the warranty period, however to run optimally and economically during the entire lifetime of the location. For the recirculation of the brackish water, fifty AHLSTAR and BE course of pumps in duplex material have now been installed and are working constantly. In addition, 5 VUPX submersible propeller pumps are used on intermittent obligation when the fish tanks are emptied in the course of the transfer of smolts.
New Nordlaks fish farm in Innhavet, Norway.
CUSTOMER BENEFIT
By selecting to work with a trusted associate, the client made sure to get quick and permanent technical assist, along with the best 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 complete cost of possession, duty points near BEP (best effectivity points), low rotation speeds, and inflexible baseplates grouted in concrete. The pump models are working easily with minimized vibration ranges. Superior-grade materials is used for all wetted parts. For the selection of pump materials in contact with brackish water, the long-term perspective favored duplex stainless steel rather than 316SS. Duplex steels have better design energy than austenitic stainless steels, as properly as greater corrosion, abrasion, and pitting resistance. In the end, upkeep costs and the risk of downtime are lowered.
Sulzer is a recognized supplier in the fish farm market, with innovative and confirmed pumping, mixing, and aeration solutions, and provides extremely energy-efficient merchandise with low life-cycle prices and the smallest potential environmental footprint. As a material specialist in a variety of contemporary water, brackish water, seawater, and brine purposes, we will supply pumps in cast iron, 316 chrome steel, duplex, tremendous duplex, SMO, and so on. .
Water therapy system process chart.
FOR MORE INFORMATION
For extra information on Oerlikon Balzers and their family of DLC surface options, please visit https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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