At the Heart of the Largest Smolt Facility in Norway

Nordlaks is a Norwegian absolutely integrated company that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has recently completed the building 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 largest of its kind in Norway, with a special concentrate on smolt welfare. The land-based facility has state-of-the-art gear for optimal biosecurity and sustainability. At the center of the RAS course of, all recirculation pumps were provided by Sulzer.
PROJECT DATA
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water therapy loops. The dry-installed single-stage overhung pumps are outfitted 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
เกจ์ลมsumo has thirty-four fish tanks of various capacities (92,000 to 264,000 gallons) in 5 separate primary sections. Each part is independent from the others and contains its own complete water remedy 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 removal of the principle suspended solid 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 treated water is finally pumped to some head tanks, prior to oxygenation and return to the fish tanks.
In each fish tank, the water is totally renewed every half an hour. The well-being of the smolts is very dependent on a relentless move of water via the ability. The reliability of the recirculation pumps is, due to this fact, of paramount importance.
High general power performance of the RAS plant means a better environmental footprint and decreased operating costs. Consequently, the main elements of the water remedy loops must have top-class efficiencies, notably the recirculation pumps.
THE SOLUTION
As a long-term supplier of apparatus (pumps and turbines) to other Nordlaks plants, Sulzer was involved at an early stage of the new project. In collaboration with the Momek Group, a big industrial service supplier in Scandinavia, the pumps were rigorously selected, not solely to fulfil the requirements through the guarantee interval, but to run optimally and economically throughout the entire lifetime of the site. For the recirculation of the brackish water, fifty AHLSTAR and BE course of pumps in duplex materials have now been put in and are operating constantly. In addition, 5 VUPX submersible propeller pumps are used on intermittent obligation when the fish tanks are emptied in the course of the switch of smolts.
New Nordlaks fish farm in Innhavet, Norway.
CUSTOMER BENEFIT
By choosing to work with a trusted companion, the consumer made positive to get fast and everlasting technical help, along with one of the best merchandise. The recirculation pumps have the following major benefits:
Extremely excessive hydraulic efficiencies that by far exceed the strictest vitality laws for water pumps. This means large vitality financial savings over time and smaller whole price of possession, responsibility points near BEP (best effectivity 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 selection of pump materials involved with brackish water, the long-term perspective favored duplex stainless-steel rather than 316SS. Duplex steels have higher design power than austenitic stainless steels, in addition to greater corrosion, abrasion, and pitting resistance. In the tip, upkeep costs and the danger of downtime are lowered.
Sulzer is a recognized supplier in the fish farm market, with progressive and confirmed pumping, mixing, and aeration solutions, and offers extremely energy-efficient merchandise with low life-cycle prices and the smallest potential environmental footprint. As a fabric specialist in a wide range of fresh water, brackish water, seawater, and brine applications, we are able to offer pumps in cast iron, 316 chrome steel, duplex, super duplex, SMO, etc. .
Water remedy system process chart.
FOR MORE INFORMATION
For more data on Oerlikon Balzers and their family of DLC surface solutions, please go to https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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