At the Heart of the Largest Smolt Facility in Norway

Nordlaks is a Norwegian absolutely built-in firm that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has lately accomplished the building of a model 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 type in Norway, with a special focus on smolt welfare. The land-based facility has state-of-the-art gear for optimum biosecurity and sustainability. At the heart 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 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 primary sections. Each section is unbiased from the others and contains 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 principle suspended strong particles. It then falls into an MBBR (moving bed biofilm reactor) for TAN (total ammonium nitrogen) reduction. After passing through ที่วัดแรงดัน for the stripping of nitrogen and carbon dioxide, the treated water is lastly pumped to some head tanks, previous to oxygenation and return to the fish tanks.
In every fish tank, the water is absolutely renewed each half an hour. The well-being of the smolts is highly dependent on a constant circulate of water through the facility. The reliability of the recirculation pumps is, therefore, of paramount importance.
High total power efficiency of the RAS plant means a greater environmental footprint and lowered working costs. Consequently, the principle parts of the water treatment loops should have top-class efficiencies, notably the recirculation pumps.
THE SOLUTION
As a long-term supplier of equipment (pumps and turbines) to different Nordlaks crops, 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 were fastidiously selected, not solely to fulfil the requirements in the course of the warranty period, however to run optimally and economically during the whole lifetime of the positioning. For the recirculation of the brackish water, fifty AHLSTAR and BE process pumps in duplex materials have now been put in and are working repeatedly. In addition, five VUPX submersible propeller pumps are used on intermittent duty 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 shopper made certain to get fast and everlasting technical help, in addition to one of the best merchandise. The recirculation pumps have the following main benefits:
Extremely high hydraulic efficiencies that by far exceed the strictest power regulations for water pumps. This means large vitality savings over time and smaller total value of ownership, obligation points close to BEP (best effectivity points), low rotation speeds, and rigid baseplates grouted in concrete. The pump items are working easily with minimized vibration ranges. Superior-grade materials is used for all wetted elements. For the selection of pump materials involved with brackish water, the long-term perspective favored duplex stainless-steel somewhat than 316SS. Duplex steels have higher design strength than austenitic stainless steels, in addition to larger corrosion, abrasion, and pitting resistance. In the end, upkeep prices and the danger of downtime are decreased.
Sulzer is a recognized supplier in the fish farm market, with progressive and confirmed pumping, mixing, and aeration solutions, and supplies extremely energy-efficient products with low life-cycle costs and the smallest attainable environmental footprint. As a material specialist in a extensive range of recent water, brackish water, seawater, and brine functions, we can supply pumps in cast iron, 316 stainless steel, duplex, super duplex, SMO, and so on. .
Water treatment system course of chart.
FOR MORE INFORMATION
For more information on Oerlikon Balzers and their household of DLC surface solutions, please visit https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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