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 recently completed 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 kind in Norway, with a particular concentrate on smolt welfare. เกจวัดแรงดันแก๊สco2 -based facility has state-of-the-art tools for optimum biosecurity and sustainability. At the center of the RAS course of, all recirculation pumps had been supplied by Sulzer.
PROJECT DATA
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water remedy 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 feet 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 5 separate main sections. Each part is unbiased from the others and contains its own full water treatment system in a semi-closed loop (98 p.c recirculation plus 2 % make-up water). The brackish water from the fish tanks first flows by gravity to a rotating drum filter for the elimination of the principle suspended stable particles. It then falls into an MBBR (moving mattress biofilm reactor) for TAN (total ammonium nitrogen) discount. 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 every fish tank, the water is fully renewed every half an hour. The well-being of the smolts is highly depending on a continuing move of water by way of the power. The reliability of the recirculation pumps is, therefore, of paramount importance.
High total vitality performance of the RAS plant means a greater environmental footprint and reduced operating costs. Consequently, the principle elements of the water therapy loops must have top-class efficiencies, significantly the recirculation pumps.
THE SOLUTION
As a long-term provider of apparatus (pumps and turbines) to different Nordlaks vegetation, Sulzer was involved at an early stage of the new challenge. In collaboration with the Momek Group, a large industrial service provider in Scandinavia, the pumps have been carefully selected, not solely to fulfil the requirements during the guarantee interval, but 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 materials have now been installed and are operating continuously. In addition, five 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 client made sure to get fast and everlasting technical assist, along with the most effective products. The recirculation pumps have the next major benefits:
Extremely excessive hydraulic efficiencies that by far exceed the strictest power laws for water pumps. This means big vitality savings over time and smaller complete value of possession, obligation factors near BEP (best effectivity points), low rotation speeds, and rigid baseplates grouted in concrete. The pump units are working easily with minimized vibration levels. Superior-grade material is used for all wetted elements. For the selection of pump material involved with brackish water, the long-term perspective favored duplex stainless-steel rather than 316SS. Duplex steels have higher design energy than austenitic stainless steels, in addition to higher corrosion, abrasion, and pitting resistance. In the end, upkeep prices and the risk of downtime are lowered.
Sulzer is a recognized supplier within the fish farm market, with innovative and confirmed pumping, mixing, and aeration options, and supplies highly energy-efficient merchandise with low life-cycle costs and the smallest possible environmental footprint. As a cloth specialist in a variety of fresh water, brackish water, seawater, and brine applications, we are ready to provide pumps in forged iron, 316 stainless-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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