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Nordlaks is a Norwegian absolutely integrated company that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has just lately completed the constructing of a brand new smolt facility for fish as much as 1 pound at Innhavet in Hamarøy municipality. เกจวัดแรงดันไทวัสดุ (recirculating aquaculture system) fish farm is the largest of its type in Norway, with a special focus on smolt welfare. The land-based facility has state-of-the-art tools for optimal biosecurity and sustainability. At the center of the RAS process, all recirculation pumps had been equipped by Sulzer.
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water remedy 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 ft of head) submersible propeller pumps (intermittent duty) for the emptying of fish tanks.
The Innhavet RAS plant has thirty-four fish tanks of various capacities (92,000 to 264,000 gallons) in five separate major sections. Each section is independent from the others and contains its personal 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 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 finally pumped to some head tanks, previous to oxygenation and return to the fish tanks.
In each fish tank, the water is absolutely renewed every half an hour. The well-being of the smolts is extremely dependent on a relentless circulate of water by way of the ability. The reliability of the recirculation pumps is, therefore, of paramount importance.
High total energy performance of the RAS plant means a greater environmental footprint and reduced operating prices. Consequently, the principle parts of the water remedy loops will need to have top-class efficiencies, significantly the recirculation pumps.
As a long-term provider of kit (pumps and turbines) to other Nordlaks crops, Sulzer was involved at an early stage of the brand new challenge. In collaboration with the Momek Group, a big industrial service provider in Scandinavia, the pumps have been carefully chosen, not solely to fulfil the necessities during 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 course of pumps in duplex material have now been installed and are operating repeatedly. 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.
By selecting to work with a trusted companion, the client made sure to get quick and permanent technical support, along with the most effective products. The recirculation pumps have the following main advantages:
Extremely high hydraulic efficiencies that by far exceed the strictest energy rules for water pumps. This means big vitality savings over time and smaller complete cost of ownership, obligation points near BEP (best efficiency points), low rotation speeds, and rigid baseplates grouted in concrete. The pump units are working smoothly with minimized vibration ranges. Superior-grade materials is used for all wetted components. For the selection of pump materials in touch with brackish water, the long-term perspective favored duplex stainless steel somewhat than 316SS. Duplex steels have better design power than austenitic stainless steels, in addition to larger corrosion, abrasion, and pitting resistance. In the end, upkeep costs and the danger of downtime are decreased.
Sulzer is a acknowledged provider in the fish farm market, with revolutionary and confirmed pumping, mixing, and aeration solutions, and provides extremely energy-efficient products with low life-cycle prices and the smallest attainable environmental footprint. As a material specialist in a wide range of fresh water, brackish water, seawater, and brine applications, we will supply pumps in cast iron, 316 chrome steel, duplex, tremendous duplex, SMO, and so on. .
Water treatment system process chart.
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