Nordlaks is a Norwegian fully integrated company that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has just 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 type in Norway, with a special give attention to smolt welfare. The land-based facility has state-of-the-art tools for optimal biosecurity and sustainability. At the heart of the RAS course of, all recirculation pumps have been provided by Sulzer.
PROJECT DATA
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water therapy 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 five separate primary sections. Each section is unbiased from the others and includes its own full water therapy system in a semi-closed loop (98 percent 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 removal of the main suspended solid particles. It then falls into an MBBR (moving bed biofilm reactor) for TAN (total ammonium nitrogen) reduction. After passing via a countercurrent degasser for the stripping of nitrogen and carbon dioxide, the handled water is lastly pumped to some head tanks, prior to oxygenation and return to the fish tanks.
In every fish tank, the water is totally renewed each half an hour. The well-being of the smolts is extremely dependent on a continuing move of water by way of the ability. The reliability of the recirculation pumps is, subsequently, of paramount importance.
High general vitality performance of the RAS plant means a better environmental footprint and reduced working costs. Consequently, เกจ์วัดแรงดันน้ำมันเครื่อง of the water remedy loops should have top-class efficiencies, notably the recirculation pumps.
THE SOLUTION
As a long-term provider of equipment (pumps and turbines) to different Nordlaks vegetation, Sulzer was concerned at an early stage of the new venture. In collaboration with the Momek Group, a large industrial service provider in Scandinavia, the pumps were carefully chosen, not only to fulfil the necessities through the guarantee interval, however to run optimally and economically throughout 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 constantly. In addition, 5 VUPX submersible propeller pumps are used on intermittent obligation when the fish tanks are emptied through the transfer of smolts.
New Nordlaks fish farm in Innhavet, Norway.
CUSTOMER BENEFIT
By choosing to work with a trusted associate, the shopper made sure to get fast and permanent technical support, in addition to the most effective merchandise. The recirculation pumps have the next main advantages:
Extremely excessive hydraulic efficiencies that by far exceed the strictest energy rules for water pumps. This means big vitality financial savings over time and smaller whole price of possession, duty factors close to BEP (best efficiency points), low rotation speeds, and rigid baseplates grouted in concrete. The pump units are working easily with minimized vibration levels. Superior-grade material is used for all wetted elements. For the choice of pump material in contact with brackish water, the long-term perspective favored duplex stainless-steel rather than 316SS. Duplex steels have higher design power than austenitic stainless steels, in addition to higher corrosion, abrasion, and pitting resistance. In the tip, maintenance costs and the chance of downtime are lowered.
Sulzer is a acknowledged supplier within the fish farm market, with progressive and proven pumping, mixing, and aeration solutions, and provides extremely energy-efficient merchandise with low life-cycle costs and the smallest attainable environmental footprint. As a fabric specialist in a extensive range of contemporary water, brackish water, seawater, and brine purposes, we can supply pumps in cast iron, 316 stainless-steel, duplex, tremendous duplex, SMO, and so on. .
Water treatment system course of chart.
FOR MORE INFORMATION
For more information on Oerlikon Balzers and their household of DLC floor options, please visit https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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