Nordlaks is a Norwegian absolutely built-in company that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has recently accomplished the building of a 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 sort in Norway, with a particular focus on smolt welfare. The land-based facility has state-of-the-art equipment for optimum biosecurity and sustainability. At the guts of the RAS course of, all recirculation pumps were equipped by Sulzer.
เกรดวัดแรงดัน and BE recirculation pumps (continuous duty) in water remedy 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 feet 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 different capacities (92,000 to 264,000 gallons) in 5 separate major sections. Each part is independent from the others and includes its personal full water remedy system in a semi-closed loop (98 p.c 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 by way of a countercurrent degasser for the stripping of nitrogen and carbon dioxide, the handled water is lastly 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 very depending on a continuing circulate of water by way of the ability. The reliability of the recirculation pumps is, due to this fact, of paramount significance.
High general power performance of the RAS plant means a better environmental footprint and decreased working costs. Consequently, the primary elements of the water treatment loops will need to have top-class efficiencies, particularly the recirculation pumps.
THE SOLUTION
As a long-term supplier of kit (pumps and turbines) to different Nordlaks plants, Sulzer was concerned at an early stage of the new project. In collaboration with the Momek Group, a big industrial service provider in Scandinavia, the pumps have been carefully chosen, not only to fulfil the requirements through the guarantee interval, however to run optimally and economically throughout the whole lifetime of the location. For the recirculation of the brackish water, fifty AHLSTAR and BE process 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 during the transfer of smolts.
New Nordlaks fish farm in Innhavet, Norway.
CUSTOMER BENEFIT
By choosing to work with a trusted associate, the client made sure to get fast and permanent technical assist, along with one of the best products. The recirculation pumps have the following main advantages:
Extremely high hydraulic efficiencies that by far exceed the strictest vitality rules for water pumps. This means huge energy savings over time and smaller total value of ownership, duty factors close to BEP (best effectivity 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 components. For the choice of pump material in contact with brackish water, the long-term perspective favored duplex stainless steel quite than 316SS. Duplex steels have better design power than austenitic stainless steels, as well as higher corrosion, abrasion, and pitting resistance. In the top, maintenance costs and the chance of downtime are decreased.
Sulzer is a acknowledged provider within the fish farm market, with revolutionary and proven pumping, mixing, and aeration options, and supplies highly energy-efficient merchandise with low life-cycle prices and the smallest possible environmental footprint. As a cloth specialist in a extensive range of contemporary water, brackish water, seawater, and brine applications, we will supply pumps in cast iron, 316 stainless-steel, duplex, tremendous duplex, SMO, and so forth. .
Water therapy system course of chart.
FOR MORE INFORMATION
For more info on Oerlikon Balzers and their family of DLC floor solutions, please visit https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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