At the Heart of the Largest Smolt Facility in Norway

Nordlaks is a Norwegian absolutely integrated 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 up to 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 give consideration to smolt welfare. The land-based facility has state-of-the-art gear for optimal biosecurity and sustainability. At the heart of the RAS course of, all recirculation pumps had been equipped by Sulzer.
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 toes of head) submersible propeller pumps (intermittent duty) for the emptying of fish tanks.
The Innhavet RAS plant has thirty-four fish tanks of different capacities (92,000 to 264,000 gallons) in five separate major sections. ที่วัดแรงดันน้ำ is impartial from the others and consists of its own full 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 bed 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 lastly pumped to some head tanks, previous to oxygenation and return to the fish tanks.
In each fish tank, the water is totally renewed each half an hour. The well-being of the smolts is very dependent on a relentless circulate of water by way of the power. The reliability of the recirculation pumps is, subsequently, of paramount importance.
High general power efficiency of the RAS plant means a better environmental footprint and decreased working prices. Consequently, the primary elements of the water treatment loops should have top-class efficiencies, notably the recirculation pumps.
As a long-term supplier of apparatus (pumps and turbines) to other Nordlaks vegetation, Sulzer was involved at an early stage of the new challenge. In collaboration with the Momek Group, a large industrial service supplier in Scandinavia, the pumps have been fastidiously selected, not solely to fulfil the necessities through the warranty interval, but to run optimally and economically throughout the whole lifetime of the location. For the recirculation of the brackish water, fifty AHLSTAR and BE course of pumps in duplex material have now been put in and are operating repeatedly. In addition, 5 VUPX submersible propeller pumps are used on intermittent responsibility when the fish tanks are emptied in the course of the transfer of smolts.
New Nordlaks fish farm in Innhavet, Norway.
By choosing to work with a trusted partner, the consumer made certain to get quick and everlasting technical support, along with one of the best merchandise. The recirculation pumps have the next main advantages:
Extremely excessive hydraulic efficiencies that by far exceed the strictest vitality rules for water pumps. This means big power savings over time and smaller whole price of possession, duty factors close to BEP (best effectivity points), low rotation speeds, and rigid baseplates grouted in concrete. The pump models are working easily 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 stainless-steel quite than 316SS. Duplex steels have higher design power than austenitic stainless steels, in addition to greater corrosion, abrasion, and pitting resistance. In the end, maintenance costs and the danger of downtime are reduced.
Sulzer is a acknowledged provider in the fish farm market, with progressive and proven pumping, mixing, and aeration options, and supplies highly energy-efficient merchandise with low life-cycle costs and the smallest attainable environmental footprint. As a material specialist in a broad range of recent water, brackish water, seawater, and brine applications, we can offer pumps in cast iron, 316 stainless steel, duplex, super duplex, SMO, and so on. .
Water therapy system process chart.
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