Nordlaks is a Norwegian totally integrated company that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has just lately completed the constructing of a 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 most important of its type in Norway, with a special concentrate on smolt welfare. The land-based facility has state-of-the-art gear for optimal biosecurity and sustainability. At the center of the RAS course of, all recirculation pumps had 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 equipped with semi-open impellers and single mechanical seals.
Five VUPX-0402 (602,312 gallons per hour at 10 toes 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 main sections. Each section is independent from the others and contains its own complete 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 strong 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 finally pumped to some head tanks, previous to oxygenation and return to the fish tanks.
In each fish tank, the water is fully renewed each 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 importance.
High overall vitality performance of the RAS plant means a greater environmental footprint and reduced operating prices. Consequently, เกจวัดถังแก๊ส of the water remedy loops must have top-class efficiencies, notably the recirculation pumps.
THE SOLUTION
As a long-term supplier of kit (pumps and turbines) to different Nordlaks crops, Sulzer was concerned at an early stage of the new project. In collaboration with the Momek Group, a big industrial service supplier in Scandinavia, the pumps have been rigorously selected, not only to fulfil the requirements through the warranty interval, however to run optimally and economically during the entire lifetime of the positioning. For the recirculation of the brackish water, fifty AHLSTAR and BE course of pumps in duplex material have now been put in and are working constantly. In addition, 5 VUPX submersible propeller pumps are used on intermittent duty when the fish tanks are emptied during the switch of smolts.
New Nordlaks fish farm in Innhavet, Norway.
CUSTOMER BENEFIT
By choosing to work with a trusted associate, the consumer made certain to get fast and permanent technical assist, 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 vitality regulations for water pumps. This means large power savings over time and smaller complete value of possession, duty factors near BEP (best efficiency points), low rotation speeds, and rigid baseplates grouted in concrete. The pump items are working easily with minimized vibration levels. Superior-grade materials is used for all wetted elements. For the choice of pump materials involved with brackish water, the long-term perspective favored duplex stainless steel somewhat than 316SS. Duplex steels have better design strength than austenitic stainless steels, in addition to higher corrosion, abrasion, and pitting resistance. In the top, maintenance costs and the danger of downtime are reduced.
Sulzer is a recognized supplier in the fish farm market, with revolutionary and confirmed pumping, mixing, and aeration solutions, and offers extremely energy-efficient products 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 applications, we are in a position to provide pumps in forged iron, 316 stainless steel, duplex, super duplex, SMO, etc. .
Water remedy system course of chart.
FOR MORE INFORMATION
For more information 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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