Nordlaks is a Norwegian totally integrated firm that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has recently accomplished the building 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 largest of its sort in Norway, with a particular concentrate on smolt welfare. เกจวัดแรงดันน้ำมันเครื่อง -based facility has state-of-the-art tools for optimal biosecurity and sustainability. At the guts of the RAS process, all recirculation pumps had been equipped by Sulzer.
PROJECT DATA
Fifty AHLSTAR 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 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 section is independent from the others and contains its own full water treatment system in a semi-closed loop (98 % recirculation plus 2 % make-up water). เกจวัดแรงดันลม from the fish tanks first flows by gravity to a rotating drum filter for the removing of the primary suspended strong particles. It then falls into an MBBR (moving mattress biofilm reactor) for TAN (total ammonium nitrogen) reduction. After passing via a countercurrent degasser for the stripping of nitrogen and carbon dioxide, the treated 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 highly dependent on a continuing flow of water by way of the power. The reliability of the recirculation pumps is, due to this fact, of paramount significance.
High general power efficiency of the RAS plant means a greater environmental footprint and decreased working costs. Consequently, the main elements of the water therapy loops must have top-class efficiencies, particularly the recirculation pumps.
THE SOLUTION
As a long-term provider of kit (pumps and turbines) to other Nordlaks crops, Sulzer was concerned at an early stage of the brand new venture. In collaboration with the Momek Group, a large industrial service supplier in Scandinavia, the pumps were fastidiously chosen, not only to fulfil the necessities in the course of the guarantee period, however to run optimally and economically during the entire lifetime of the site. 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 obligation when the fish tanks are emptied through the switch of smolts.
New Nordlaks fish farm in Innhavet, Norway.
CUSTOMER BENEFIT
By choosing to work with a trusted partner, the consumer made certain to get fast and permanent technical help, along with one of the best merchandise. The recirculation pumps have the next major advantages:
Extremely excessive hydraulic efficiencies that by far exceed the strictest power rules for water pumps. This means large power savings over time and smaller total value of possession, duty points near BEP (best effectivity points), low rotation speeds, and inflexible baseplates grouted in concrete. The pump models are working easily with minimized vibration levels. Superior-grade material is used for all wetted components. For the selection of pump materials involved with brackish water, the long-term perspective favored duplex stainless-steel rather than 316SS. Duplex steels have better design strength than austenitic stainless steels, as well as larger 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 solutions, and offers highly energy-efficient products with low life-cycle prices and the smallest attainable environmental footprint. As a cloth specialist in a wide range of fresh water, brackish water, seawater, and brine purposes, we can offer pumps in forged iron, 316 stainless steel, duplex, tremendous duplex, SMO, and so forth. .
Water treatment system process chart.
FOR MORE INFORMATION
For more data on Oerlikon Balzers and their family of DLC surface options, please visit https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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