Nordlaks is a Norwegian absolutely built-in company that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has just lately accomplished the constructing of a brand 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 largest of its kind in Norway, with a particular focus on smolt welfare. The land-based facility has state-of-the-art gear for optimum biosecurity and sustainability. At the center of the RAS course of, 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 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 five separate major sections. Each part is impartial from the others and contains its personal full water remedy 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 by way of 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 absolutely renewed every half an hour. The well-being of the smolts is highly depending 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 total power performance of the RAS plant means a better environmental footprint and reduced working prices. Consequently, the main components of the water therapy loops must have top-class efficiencies, notably the recirculation pumps.
THE SOLUTION
As a long-term supplier of kit (pumps and turbines) to other Nordlaks vegetation, Sulzer was involved at an early stage of the new challenge. In collaboration with the Momek Group, a large industrial service provider in Scandinavia, the pumps had been carefully selected, not solely to fulfil the necessities during the guarantee period, but to run optimally and economically during the entire lifetime of the positioning. For the recirculation of the brackish water, fifty AHLSTAR and BE process pumps in duplex materials 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 transfer of smolts.
New Nordlaks fish farm in Innhavet, Norway.
CUSTOMER BENEFIT
By selecting to work with a trusted companion, the consumer made sure to get fast and everlasting technical support, in addition to the best products. The recirculation pumps have the following main benefits:
Extremely high hydraulic efficiencies that by far exceed the strictest vitality regulations for water pumps. This means large energy financial savings over time and smaller total value of ownership, obligation factors close to BEP (best efficiency points), low rotation speeds, and rigid baseplates grouted in concrete. The pump items are working smoothly with minimized vibration levels. Superior-grade material is used for all wetted components. For the selection of pump materials in touch with brackish water, the long-term perspective favored duplex chrome steel rather than 316SS. Duplex steels have higher design energy than austenitic stainless steels, in addition to greater corrosion, abrasion, and pitting resistance. In the end, maintenance prices and the danger of downtime are lowered.
Sulzer is a recognized provider in the fish farm market, with revolutionary and confirmed pumping, mixing, and aeration solutions, and supplies highly energy-efficient merchandise with low life-cycle costs and the smallest potential environmental footprint. As ส่วนประกอบpressuregauge in a extensive range of fresh water, brackish water, seawater, and brine applications, we will supply pumps in cast iron, 316 stainless steel, duplex, super duplex, SMO, and so on. .
Water remedy system course of chart.
FOR MORE INFORMATION
For extra data on Oerlikon Balzers and their family of DLC surface options, please go to https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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