Nordlaks is a Norwegian absolutely integrated company that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has just lately accomplished the building of a model new smolt facility for fish as much as 1 pound at Innhavet in Hamarøy municipality. This RAS (recirculating aquaculture system) fish farm is the largest of its kind in Norway, with a special focus on smolt welfare. ไดอะแฟรม ซีล -based facility has state-of-the-art tools for optimal biosecurity and sustainability. At the heart of the RAS course of, all recirculation pumps had been equipped by Sulzer.
PROJECT DATA
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water remedy 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 toes of head) submersible propeller pumps (intermittent duty) for the emptying of fish tanks.
THE CHALLENGE
เพรสเชอร์เกจ 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 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 removing of the primary 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 treated water is finally pumped to some head tanks, previous 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 constant circulate of water through the ability. The reliability of the recirculation pumps is, subsequently, of paramount importance.
High total power performance of the RAS plant means a better environmental footprint and lowered operating prices. Consequently, the primary parts of the water remedy loops should have top-class efficiencies, notably the recirculation pumps.
THE SOLUTION
As a long-term supplier of equipment (pumps and turbines) to other Nordlaks crops, Sulzer was concerned at an early stage of the brand new venture. In collaboration with the Momek Group, a big industrial service provider in Scandinavia, the pumps were rigorously chosen, not only to fulfil the necessities through 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 materials have now been put in and are operating repeatedly. In addition, five VUPX submersible propeller pumps are used on intermittent duty 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 partner, the client made positive to get fast and permanent technical support, along with the best products. The recirculation pumps have the next main advantages:
Extremely excessive hydraulic efficiencies that by far exceed the strictest vitality regulations for water pumps. This means big power financial savings over time and smaller total price of possession, duty points near 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 material involved with brackish water, the long-term perspective favored duplex stainless steel quite than 316SS. Duplex steels have higher design strength than austenitic stainless steels, as nicely as larger corrosion, abrasion, and pitting resistance. In the end, maintenance prices and the chance of downtime are decreased.
Sulzer is a acknowledged provider in the fish farm market, with progressive and proven pumping, mixing, and aeration options, and offers highly energy-efficient merchandise with low life-cycle costs and the smallest attainable environmental footprint. As a cloth specialist in a wide range of fresh water, brackish water, seawater, and brine purposes, we can offer pumps in forged iron, 316 stainless-steel, duplex, tremendous duplex, SMO, and so forth. .
Water treatment system course of chart.
FOR MORE INFORMATION
For more info on Oerlikon Balzers and their household of DLC surface solutions, please visit https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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