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Nordlaks is a Norwegian absolutely built-in company 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 biggest of its sort in Norway, with a special concentrate on smolt welfare. The land-based facility has state-of-the-art gear for optimal biosecurity and sustainability. At the guts of the RAS process, all recirculation pumps were 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 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 different capacities (92,000 to 264,000 gallons) in five separate primary sections. Each part is independent from the others and contains its own complete water remedy system in a semi-closed loop (98 % 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 principle suspended solid particles. It then falls into an MBBR (moving bed biofilm reactor) for TAN (total ammonium nitrogen) discount. 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 every fish tank, the water is absolutely renewed each half an hour. The well-being of the smolts is extremely dependent on a constant move of water by way of the ability. The reliability of the recirculation pumps is, due to this fact, of paramount significance.
High general energy performance of the RAS plant means a greater environmental footprint and lowered operating costs. Consequently, the principle components of the water remedy loops should have top-class efficiencies, particularly the recirculation pumps.
THE SOLUTION
As a long-term supplier of apparatus (pumps and turbines) to other Nordlaks crops, Sulzer was involved at an early stage of the brand new challenge. In collaboration with the Momek Group, a large industrial service provider in Scandinavia, the pumps have been fastidiously chosen, not only to fulfil the necessities during the guarantee interval, 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 put in and are operating continuously. In addition, five VUPX submersible propeller pumps are used on intermittent responsibility when the fish tanks are emptied in the course of the switch of smolts.
New Nordlaks fish farm in Innhavet, Norway.
CUSTOMER BENEFIT
By selecting to work with a trusted companion, the shopper made certain to get fast and everlasting technical help, along with the best products. The recirculation pumps have the following main advantages:
Extremely excessive hydraulic efficiencies that by far exceed the strictest energy rules for water pumps. This means large vitality financial savings over time and smaller complete cost of ownership, obligation points close to BEP (best efficiency points), low rotation speeds, and inflexible baseplates grouted in concrete. The pump models are working easily with minimized vibration levels. Superior-grade materials is used for all wetted elements. For the choice of pump materials involved with brackish water, the long-term perspective favored duplex stainless steel somewhat than 316SS. Duplex steels have higher design energy than austenitic stainless steels, as nicely as higher corrosion, abrasion, and pitting resistance. In the top, upkeep costs and the chance of downtime are lowered.
Sulzer is a recognized provider within the fish farm market, with revolutionary and confirmed pumping, mixing, and aeration solutions, and provides extremely energy-efficient merchandise with low life-cycle costs and the smallest attainable environmental footprint. As ส่วนประกอบpressuregauge in a wide range of recent water, brackish water, seawater, and brine functions, we can provide 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 data on Oerlikon Balzers and their household of DLC floor solutions, please go to https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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