Nordlaks is a Norwegian absolutely built-in firm that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has lately completed the constructing 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 special give consideration to smolt welfare. The land-based facility has state-of-the-art equipment 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 geared up 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 five separate main sections. Each part is independent from the others and consists of its personal full water treatment 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 main suspended strong 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 handled water is finally pumped to some head tanks, prior to oxygenation and return to the fish tanks.
In each fish tank, the water is totally renewed every half an hour. The well-being of the smolts is very depending on a continuing circulate of water through the ability. The reliability of the recirculation pumps is, therefore, of paramount importance.
High total power performance of the RAS plant means a better environmental footprint and lowered working costs. Consequently, the main parts of the water remedy loops will have to have top-class efficiencies, significantly the recirculation pumps.
THE SOLUTION
As a long-term provider of apparatus (pumps and turbines) to different Nordlaks plants, Sulzer was involved at an early stage of the new venture. In collaboration with the Momek Group, a big industrial service provider in Scandinavia, the pumps had been fastidiously chosen, not only to fulfil the requirements in the course of the guarantee interval, but to run optimally and economically throughout the entire lifetime of the location. For the recirculation of the brackish water, fifty AHLSTAR and BE process pumps in duplex materials 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 during the transfer of smolts.
New Nordlaks fish farm in Innhavet, Norway.
CUSTOMER BENEFIT
By choosing to work with a trusted partner, the shopper made positive to get fast and everlasting technical help, along with the most effective products. The recirculation pumps have the following main advantages:
Extremely high hydraulic efficiencies that by far exceed the strictest vitality regulations for water pumps. This means large power financial savings over time and smaller total price of ownership, duty points near BEP (best effectivity points), low rotation speeds, and inflexible baseplates grouted in concrete. เกจวัดแรงดัน10bar are working easily with minimized vibration levels. Superior-grade materials is used for all wetted parts. For the choice of pump materials involved with brackish water, the long-term perspective favored duplex stainless-steel somewhat than 316SS. Duplex steels have higher design strength than austenitic stainless steels, in addition to greater corrosion, abrasion, and pitting resistance. In the tip, upkeep costs and the chance of downtime are decreased.
Sulzer is a recognized provider in the fish farm market, with revolutionary and proven pumping, mixing, and aeration options, and supplies extremely energy-efficient products with low life-cycle prices and the smallest possible environmental footprint. As a fabric specialist in a variety of contemporary water, brackish water, seawater, and brine applications, we can supply pumps in forged iron, 316 stainless steel, duplex, tremendous duplex, SMO, etc. .
Water treatment system course of chart.
FOR MORE INFORMATION
For more data on Oerlikon Balzers and their household of DLC surface solutions, please visit https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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