Nordlaks is a Norwegian absolutely integrated firm that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has lately accomplished the constructing of a brand 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 consideration to smolt welfare. The land-based facility has state-of-the-art gear for optimum biosecurity and sustainability. At the guts of the RAS process, 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 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 part is unbiased from the others and contains its own full water remedy 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 removal of the main 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 treated water is finally 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 highly dependent on a relentless flow of water through the power. The reliability of the recirculation pumps is, subsequently, of paramount importance.
High general power performance of the RAS plant means a better environmental footprint and decreased working prices. Consequently, the principle components of the water therapy loops should have top-class efficiencies, notably the recirculation pumps.
THE SOLUTION
As a long-term supplier of equipment (pumps and turbines) to different Nordlaks crops, Sulzer was concerned at an early stage of the new challenge. In collaboration with the Momek Group, a big industrial service supplier in Scandinavia, the pumps had been rigorously selected, not solely to fulfil the requirements in the course of the guarantee interval, however to run optimally and economically throughout the whole lifetime of the positioning. For the recirculation of the brackish water, fifty AHLSTAR and BE course of pumps in duplex material have now been installed and are operating continuously. In addition, 5 VUPX submersible propeller pumps are used on intermittent obligation 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 shopper made positive to get fast and permanent technical assist, in addition to the best products. The recirculation pumps have the following major advantages:
Extremely high hydraulic efficiencies that by far exceed the strictest power rules for water pumps. This means large vitality financial savings over time and smaller complete value of possession, duty factors near BEP (best effectivity points), low rotation speeds, and inflexible baseplates grouted in concrete. The pump models are working smoothly with minimized vibration ranges. Superior-grade materials is used for all wetted elements. For เพรสเชอร์เกจ of pump materials in contact with brackish water, the long-term perspective favored duplex chrome steel quite than 316SS. Duplex steels have better design power than austenitic stainless steels, in addition to larger corrosion, abrasion, and pitting resistance. In the end, upkeep prices and the risk of downtime are lowered.
Sulzer is a acknowledged supplier in the fish farm market, with progressive and confirmed pumping, mixing, and aeration solutions, and provides extremely energy-efficient merchandise with low life-cycle prices and the smallest possible environmental footprint. As a material specialist in a variety of contemporary water, brackish water, seawater, and brine applications, we will offer pumps in forged iron, 316 stainless-steel, duplex, tremendous duplex, SMO, and so forth. .
Water therapy system course of chart.
FOR MORE INFORMATION
For more info on Oerlikon Balzers and their family of DLC floor options, please go to https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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