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 lately accomplished the building 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 most important of its type in Norway, with a particular concentrate on smolt welfare. The land-based facility has state-of-the-art gear 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 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 five separate primary sections. Each section is unbiased from the others and contains its own complete water therapy 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 removing of the principle suspended stable particles. It then falls into an MBBR (moving bed biofilm reactor) for TAN (total ammonium nitrogen) reduction. After passing by way of a countercurrent degasser for the stripping of nitrogen and carbon dioxide, the handled water is finally pumped to some head tanks, previous to oxygenation and return to the fish tanks.
In every fish tank, the water is totally renewed every half an hour. เกจวัดน้ำยาแอร์refco -being of the smolts is very depending on a relentless circulate of water through the power. The reliability of the recirculation pumps is, due to this fact, of paramount significance.
High overall energy performance of the RAS plant means a better environmental footprint and reduced operating prices. Consequently, the primary elements of the water treatment loops should have top-class efficiencies, particularly the recirculation pumps.
THE SOLUTION

As a long-term provider of equipment (pumps and turbines) to other Nordlaks vegetation, Sulzer was involved at an early stage of the new venture. In collaboration with the Momek Group, a big industrial service provider in Scandinavia, the pumps were carefully chosen, not solely to fulfil the necessities 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 material have now been put in and are operating continuously. 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 consumer made sure to get fast and everlasting technical help, in addition to one of the best merchandise. The recirculation pumps have the next main benefits:
Extremely high hydraulic efficiencies that by far exceed the strictest power laws for water pumps. This means large vitality savings over time and smaller whole cost of ownership, duty points near BEP (best efficiency points), low rotation speeds, and inflexible baseplates grouted in concrete. The pump models are working smoothly with minimized vibration ranges. Superior-grade material is used for all wetted parts. For the selection of pump material in touch with brackish water, the long-term perspective favored duplex chrome steel quite than 316SS. Duplex steels have better design strength than austenitic stainless steels, in addition to higher corrosion, abrasion, and pitting resistance. In the tip, maintenance costs and the chance of downtime are decreased.
Sulzer is a recognized provider in the fish farm market, with revolutionary and proven pumping, mixing, and aeration solutions, and offers highly energy-efficient merchandise with low life-cycle prices and the smallest possible environmental footprint. As a cloth specialist in a variety of contemporary water, brackish water, seawater, and brine functions, we are in a position to offer pumps in forged iron, 316 stainless-steel, duplex, super duplex, SMO, and so on. .
Water therapy system process chart.
FOR MORE INFORMATION

For more info on Oerlikon Balzers and their household of DLC surface solutions, please go to https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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