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At the Heart of the Largest Smolt Facility in Norway

Nordlaks is a Norwegian fully built-in firm that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has just lately completed the constructing of a model 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 concentrate on smolt welfare. The land-based facility has state-of-the-art tools for optimal biosecurity and sustainability. At the heart of the RAS process, all recirculation pumps were provided by Sulzer.
PROJECT DATA
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water treatment loops. The dry-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 CHALLENGE
The Innhavet RAS plant has thirty-four fish tanks of different capacities (92,000 to 264,000 gallons) in 5 separate main sections. Each part is impartial from the others and consists of its own complete water remedy system in a semi-closed loop (98 % 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 primary suspended strong particles. It then falls into an MBBR (moving mattress 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 fully renewed each half an hour. The well-being of the smolts is highly depending on a constant circulate of water by way of the power. The reliability of the recirculation pumps is, due to this fact, of paramount importance.
High total energy performance of the RAS plant means a greater environmental footprint and lowered operating prices. Consequently, the primary components of the water therapy loops should have top-class efficiencies, notably the recirculation pumps.
THE SOLUTION
As a long-term provider of apparatus (pumps and turbines) to different Nordlaks crops, Sulzer was involved at an early stage of the new venture. In collaboration with the Momek Group, a large industrial service provider in Scandinavia, the pumps have been rigorously chosen, not solely to fulfil the necessities during the guarantee interval, however to run optimally and economically throughout 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 put in and are operating repeatedly. In addition, 5 VUPX submersible propeller pumps are used on intermittent duty when the fish tanks are emptied during the transfer of smolts.
New Nordlaks fish farm in Innhavet, Norway.
CUSTOMER BENEFIT
By choosing to work with a trusted partner, the consumer made positive to get quick and everlasting technical support, in addition to the best merchandise. The recirculation pumps have the next major advantages:
Extremely high hydraulic efficiencies that by far exceed the strictest power laws for water pumps. This means huge power financial savings over time and smaller complete price of possession, responsibility points close to BEP (best effectivity points), low rotation speeds, and inflexible baseplates grouted in concrete. The pump units are working easily with minimized vibration ranges. Superior-grade material is used for all wetted parts. For the choice of pump material in contact with brackish water, the long-term perspective favored duplex stainless steel quite 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 chance of downtime are lowered.
Sulzer is a recognized supplier within the fish farm market, with progressive and proven pumping, mixing, and aeration options, and provides extremely energy-efficient merchandise with low life-cycle costs and the smallest attainable environmental footprint. As เกจวัดไนโตรเจนราคา in a variety of fresh water, brackish water, seawater, and brine applications, we will provide pumps in forged iron, 316 stainless steel, duplex, super duplex, SMO, and so on. .
Water therapy system process chart.
FOR MORE INFORMATION
For more data on Oerlikon Balzers and their family of DLC floor solutions, please go to https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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