Nordlaks is a Norwegian totally built-in firm that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has just lately accomplished the constructing of a new smolt facility for fish up to 1 pound at Innhavet in Hamarøy municipality. This RAS (recirculating aquaculture system) fish farm is the most important of its sort in Norway, with a particular give attention to smolt welfare. The land-based facility has state-of-the-art equipment for optimal biosecurity and sustainability. At pressure gauge ราคา of the RAS process, all recirculation pumps were provided by Sulzer.
PROJECT DATA
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water treatment loops. The dry-installed single-stage overhung pumps are geared up 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 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 impartial from the others and contains its own complete water therapy system in a semi-closed loop (98 p.c 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 elimination of the main suspended solid particles. It then falls into an MBBR (moving bed biofilm reactor) for TAN (total ammonium nitrogen) discount. After passing through 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 absolutely renewed every half an hour. The well-being of the smolts is very depending on a relentless flow of water via the facility. The reliability of the recirculation pumps is, therefore, of paramount importance.
High total vitality efficiency of the RAS plant means a better environmental footprint and reduced operating prices. Consequently, the primary components of the water treatment loops should have top-class efficiencies, notably the recirculation pumps.
THE SOLUTION
As a long-term supplier of apparatus (pumps and turbines) to different Nordlaks plants, Sulzer was concerned at an early stage of the model new venture. In collaboration with the Momek Group, a big industrial service supplier in Scandinavia, the pumps have been fastidiously chosen, not only to fulfil the necessities in the course of the warranty period, however to run optimally and economically throughout the whole lifetime of the location. For the recirculation of the brackish water, fifty AHLSTAR and BE process pumps in duplex material have now been installed and are working continuously. In addition, five VUPX submersible propeller pumps are used on intermittent duty when the fish tanks are emptied through the transfer of smolts.
New Nordlaks fish farm in Innhavet, Norway.
CUSTOMER BENEFIT
By selecting to work with a trusted associate, the client made certain to get quick and permanent technical assist, in addition to the most effective merchandise. The recirculation pumps have the following major advantages:
Extremely excessive hydraulic efficiencies that by far exceed the strictest power laws for water pumps. This means big power savings over time and smaller complete cost of possession, obligation points near BEP (best efficiency points), low rotation speeds, and inflexible baseplates grouted in concrete. The pump models are working smoothly with minimized vibration ranges. Superior-grade material is used for all wetted parts. For the selection of pump materials in contact with brackish water, the long-term perspective favored duplex stainless-steel somewhat than 316SS. Duplex steels have better design energy than austenitic stainless steels, in addition to larger corrosion, abrasion, and pitting resistance. In the top, maintenance prices and the risk of downtime are reduced.
Sulzer is a recognized provider in the fish farm market, with revolutionary and confirmed pumping, mixing, and aeration options, and supplies highly energy-efficient merchandise with low life-cycle costs and the smallest attainable environmental footprint. As a fabric specialist in a variety of recent water, brackish water, seawater, and brine applications, we are ready to offer pumps in forged iron, 316 stainless-steel, duplex, tremendous duplex, SMO, and so on. .
Water therapy system process chart.
FOR MORE INFORMATION
For extra 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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