At the Heart of the Largest Smolt Facility in Norway

Nordlaks is a Norwegian totally built-in firm that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. Private has recently accomplished 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 largest of its type in Norway, with a particular focus on smolt welfare. The land-based facility has state-of-the-art tools for optimum biosecurity and sustainability. At the guts of the RAS course of, all recirculation pumps had been 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 equipped 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 major sections. Each section is unbiased from the others and includes its own full water remedy system in a semi-closed loop (98 p.c 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 solid particles. It then falls into an MBBR (moving bed biofilm reactor) for TAN (total ammonium nitrogen) reduction. After passing via a countercurrent degasser for the stripping of nitrogen and carbon dioxide, the treated water is finally 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. The well-being of the smolts is highly depending on a continuing move of water through the ability. The reliability of the recirculation pumps is, therefore, of paramount significance.
High general vitality performance of the RAS plant means a greater environmental footprint and reduced operating prices. Consequently, the main parts of the water remedy loops must have top-class efficiencies, notably the recirculation pumps.
THE SOLUTION
As a long-term provider of apparatus (pumps and turbines) to other Nordlaks plants, Sulzer was concerned at an early stage of the model new venture. In collaboration with the Momek Group, a large industrial service supplier in Scandinavia, the pumps had been carefully selected, not only to fulfil the requirements through the guarantee period, however to run optimally and economically throughout the whole lifetime of the site. For the recirculation of the brackish water, fifty AHLSTAR and BE course of pumps in duplex material have now been installed and are working repeatedly. In addition, 5 VUPX submersible propeller pumps are used on intermittent responsibility when the fish tanks are emptied through the transfer 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 permanent technical help, in addition to the best merchandise. The recirculation pumps have the next major advantages:
Extremely excessive hydraulic efficiencies that by far exceed the strictest vitality regulations for water pumps. This means large power savings over time and smaller whole price of possession, responsibility points near BEP (best efficiency points), low rotation speeds, and inflexible baseplates grouted in concrete. The pump items are working smoothly with minimized vibration ranges. Superior-grade materials is used for all wetted parts. For the choice of pump material in touch with brackish water, the long-term perspective favored duplex chrome steel rather than 316SS. Duplex steels have better design energy than austenitic stainless steels, as properly as larger corrosion, abrasion, and pitting resistance. In the top, maintenance prices and the risk of downtime are decreased.
Sulzer is a recognized supplier within the fish farm market, with progressive and confirmed pumping, mixing, and aeration options, and offers highly energy-efficient products with low life-cycle prices and the smallest potential environmental footprint. As a material specialist in a wide range of recent water, brackish water, seawater, and brine functions, we can offer pumps in cast iron, 316 chrome steel, duplex, tremendous duplex, SMO, etc. .
Water therapy system course of chart.
FOR MORE INFORMATION
For extra info on Oerlikon Balzers and their household of DLC surface options, please go to https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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