At the Heart of the Largest Smolt Facility in Norway

Nordlaks is a Norwegian absolutely built-in firm that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has recently accomplished the building 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 most important of its kind in Norway, with a particular concentrate on smolt welfare. The land-based facility has state-of-the-art equipment for optimum biosecurity and sustainability. At the heart of the RAS process, all recirculation pumps were equipped by Sulzer.
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water treatment 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 ft of head) submersible propeller pumps (intermittent duty) for the emptying of fish tanks.
The Innhavet RAS plant has thirty-four fish tanks of different capacities (92,000 to 264,000 gallons) in 5 separate main sections. Each part is independent from the others and contains its personal full water remedy system in a semi-closed loop (98 percent recirculation plus 2 % make-up water). The brackish water from the fish tanks first flows by gravity to a rotating drum filter for the elimination of the principle suspended stable 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 each fish tank, the water is fully renewed every half an hour. The well-being of the smolts is very depending on a constant flow of water via the facility. The reliability of the recirculation pumps is, therefore, of paramount importance.
High total energy performance of the RAS plant means a greater environmental footprint and decreased working costs. Consequently, the primary elements of the water therapy loops must have top-class efficiencies, particularly the recirculation pumps.
As a long-term supplier of kit (pumps and turbines) to different Nordlaks crops, Sulzer was concerned at an early stage of the brand new challenge. In collaboration with the Momek Group, a big industrial service provider in Scandinavia, the pumps have been carefully chosen, not solely to fulfil the necessities during the guarantee interval, however to run optimally and economically throughout the whole lifetime of the site. For the recirculation of the brackish water, fifty AHLSTAR and BE process pumps in duplex material have now been put in and are operating continuously. In addition, five VUPX submersible propeller pumps are used on intermittent duty when the fish tanks are emptied through the switch of smolts.
New Nordlaks fish farm in Innhavet, Norway.
By selecting to work with a trusted partner, the shopper made positive to get fast and permanent technical support, in addition to the most effective products. The recirculation pumps have the following major benefits:
Extremely high hydraulic efficiencies that by far exceed the strictest energy laws for water pumps. This means huge vitality savings over time and smaller complete value of ownership, obligation points near BEP (best effectivity points), low rotation speeds, and rigid baseplates grouted in concrete. The pump models are working smoothly with minimized vibration levels. Superior-grade materials is used for all wetted components. For the selection 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 end, maintenance prices and the risk of downtime are lowered.
Sulzer is a acknowledged supplier in the fish farm market, with revolutionary and confirmed pumping, mixing, and aeration options, and offers extremely energy-efficient merchandise with low life-cycle prices and the smallest possible environmental footprint. As เกจวัดแรงดันไฟฟ้า in a extensive range of fresh water, brackish water, seawater, and brine functions, we are in a position to provide pumps in cast iron, 316 chrome steel, duplex, super duplex, SMO, and so forth. .
Water remedy system course of chart.
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