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 recently completed the constructing of a brand 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 largest 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 center of the RAS process, all recirculation pumps had been supplied by Sulzer.
PROJECT DATA
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water therapy 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 various capacities (92,000 to 264,000 gallons) in 5 separate major sections. Each section is independent from the others and consists of its own complete water remedy system in a semi-closed loop (98 p.c 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 elimination of the primary suspended strong particles. Classified 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 finally pumped to some head tanks, previous to oxygenation and return to the fish tanks.
In each fish tank, the water is fully renewed every half an hour. The well-being of the smolts is very depending on a constant move of water through the power. The reliability of the recirculation pumps is, subsequently, of paramount importance.
High overall vitality efficiency of the RAS plant means a better environmental footprint and reduced operating costs. Consequently, the main components of the water treatment loops must have top-class efficiencies, particularly the recirculation pumps.
THE SOLUTION
As a long-term provider of equipment (pumps and turbines) to different Nordlaks vegetation, 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 have been fastidiously selected, not solely to fulfil the requirements in the course of the warranty period, but to run optimally and economically throughout 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 constantly. In addition, five VUPX submersible propeller pumps are used on intermittent responsibility when the fish tanks are emptied through the switch of smolts.
New Nordlaks fish farm in Innhavet, Norway.
CUSTOMER BENEFIT
By selecting to work with a trusted partner, the shopper made positive to get quick and everlasting technical support, in addition to the best merchandise. The recirculation pumps have the next main benefits:
Extremely high hydraulic efficiencies that by far exceed the strictest energy rules for water pumps. This means large energy financial savings over time and smaller whole value of possession, duty factors close to BEP (best efficiency points), low rotation speeds, and inflexible baseplates grouted in concrete. The pump units are working easily with minimized vibration ranges. Superior-grade materials is used for all wetted elements. For the selection of pump material in touch with brackish water, the long-term perspective favored duplex stainless-steel rather than 316SS. Improved have higher design strength than austenitic stainless steels, in addition to greater corrosion, abrasion, and pitting resistance. In the tip, upkeep prices and the danger of downtime are lowered.
Sulzer is a acknowledged provider within the fish farm market, with progressive and confirmed pumping, mixing, and aeration options, and offers extremely energy-efficient merchandise with low life-cycle costs and the smallest possible environmental footprint. As a material specialist in a extensive range of contemporary water, brackish water, seawater, and brine purposes, we will provide pumps in forged iron, 316 stainless steel, duplex, super duplex, SMO, and so forth. .
Water remedy system course of chart.
FOR MORE INFORMATION
For extra info on Oerlikon Balzers and their household of DLC floor options, please visit https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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