Nordlaks is a Norwegian totally integrated firm that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has recently completed the constructing of a model 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 biggest of its sort in Norway, with a special focus on smolt welfare. เกจวัดแรงดัน -based facility has state-of-the-art equipment for optimum biosecurity and sustainability. At the center of the RAS process, all recirculation pumps had been supplied 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 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 various capacities (92,000 to 264,000 gallons) in 5 separate major sections. Each section is independent from the others and contains its personal complete 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 elimination of the main suspended solid particles. pressure gauge octa 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 treated water is finally pumped to some head tanks, prior 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 move of water via the ability. The reliability of the recirculation pumps is, due to this fact, of paramount significance.
High overall energy efficiency of the RAS plant means a greater environmental footprint and decreased operating costs. Consequently, the principle parts of the water remedy loops must have top-class efficiencies, significantly the recirculation pumps.
THE SOLUTION
As a long-term provider of apparatus (pumps and turbines) to different Nordlaks crops, Sulzer was involved at an early stage of the brand 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, but to run optimally and economically throughout the entire lifetime of the site. For the recirculation of the brackish water, fifty AHLSTAR and BE process pumps in duplex material have now been installed and are operating 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 choosing to work with a trusted companion, the client made positive to get quick and permanent technical help, in addition to the best merchandise. The recirculation pumps have the next major benefits:
Extremely high hydraulic efficiencies that by far exceed the strictest energy rules for water pumps. This means large energy financial savings over time and smaller complete cost of ownership, obligation points close to BEP (best effectivity points), low rotation speeds, and rigid baseplates grouted in concrete. The pump units are working easily with minimized vibration ranges. Superior-grade material is used for all wetted components. For the choice of pump material in contact with brackish water, the long-term perspective favored duplex stainless steel quite than 316SS. Duplex steels have better design strength than austenitic stainless steels, as well as larger corrosion, abrasion, and pitting resistance. In the top, upkeep prices and the danger of downtime are lowered.
Sulzer is a acknowledged supplier in the fish farm market, with innovative and proven pumping, mixing, and aeration solutions, and offers extremely energy-efficient merchandise with low life-cycle prices and the smallest potential environmental footprint. As a material specialist in a extensive range of recent water, brackish water, seawater, and brine purposes, we can provide pumps in cast iron, 316 chrome steel, duplex, super duplex, SMO, and so forth. .
Water therapy system course of chart.
FOR MORE INFORMATION
For more information on Oerlikon Balzers and their household of DLC surface options, please go to https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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