Nordlaks is a Norwegian absolutely integrated company that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has just lately accomplished the constructing of a model 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 biggest of its sort in Norway, with a particular give attention to smolt welfare. The land-based facility has state-of-the-art equipment for optimal biosecurity and sustainability. At the heart of the RAS course of, all recirculation pumps were supplied by Sulzer.
เครื่องมือที่ใช้วัดความดันเลือด and BE recirculation pumps (continuous duty) in water treatment 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 CHALLENGE
The Innhavet RAS plant has thirty-four fish tanks of various capacities (92,000 to 264,000 gallons) in five separate main sections. Each section is unbiased from the others and consists of its personal full water therapy system in a semi-closed loop (98 percent recirculation plus 2 percent make-up water). The brackish water from the fish tanks first flows by gravity to a rotating drum filter for the removal of the main suspended solid particles. It then falls into an MBBR (moving bed biofilm reactor) for TAN (total ammonium nitrogen) discount. After passing via a countercurrent degasser for the stripping of nitrogen and carbon dioxide, the handled water is finally pumped to some head tanks, prior to oxygenation and return to the fish tanks.
In every fish tank, the water is fully renewed every half an hour. The well-being of the smolts is very depending on a relentless flow of water via the power. The reliability of the recirculation pumps is, subsequently, of paramount importance.
High total power performance of the RAS plant means a better environmental footprint and lowered working prices. Consequently, the principle elements of the water treatment loops must have top-class efficiencies, particularly the recirculation pumps.
THE SOLUTION
As a long-term provider of apparatus (pumps and turbines) to other Nordlaks crops, Sulzer was concerned at an early stage of the new challenge. In collaboration with the Momek Group, a big industrial service supplier in Scandinavia, the pumps have been carefully chosen, not solely to fulfil the necessities through the guarantee period, however to run optimally and economically during the whole lifetime of the site. For the recirculation of the brackish water, fifty AHLSTAR and BE course of pumps in duplex materials have now been installed and are operating repeatedly. In addition, 5 VUPX submersible propeller pumps are used on intermittent responsibility when the fish tanks are emptied during the transfer of smolts.
New Nordlaks fish farm in Innhavet, Norway.
CUSTOMER BENEFIT
By choosing to work with a trusted associate, the consumer made positive to get fast and permanent technical help, in addition to the most effective merchandise. 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 large energy savings over time and smaller whole price of possession, responsibility factors near BEP (best effectivity points), low rotation speeds, and inflexible baseplates grouted in concrete. The pump units are working smoothly with minimized vibration levels. Superior-grade material is used for all wetted elements. For the choice of pump materials in contact with brackish water, the long-term perspective favored duplex chrome steel somewhat than 316SS. Duplex steels have better design power than austenitic stainless steels, in addition to higher corrosion, abrasion, and pitting resistance. In the end, upkeep costs and the risk of downtime are reduced.
Sulzer is a acknowledged supplier within the fish farm market, with progressive and proven pumping, mixing, and aeration options, and offers highly energy-efficient merchandise with low life-cycle costs and the smallest potential environmental footprint. As a material specialist in a extensive range of fresh water, brackish water, seawater, and brine functions, we will offer pumps in forged iron, 316 stainless-steel, duplex, tremendous duplex, SMO, and so on. .
Water remedy system process chart.
FOR MORE INFORMATION
For more information on Oerlikon Balzers and their household of DLC floor solutions, please visit https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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