Nordlaks is a Norwegian totally built-in company that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has just lately completed the constructing of a model new smolt facility for fish up to 1 pound at Innhavet in Hamarøy municipality. เกจวัดแรงดันอาร์กอน (recirculating aquaculture system) fish farm is the most important of its type in Norway, with a particular give attention to smolt welfare. The land-based facility has state-of-the-art gear for optimum biosecurity and sustainability. At the heart of the RAS course of, 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 various capacities (92,000 to 264,000 gallons) in five separate main sections. Each section is independent from the others and includes its personal complete water treatment 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 primary suspended stable particles. It then falls into an MBBR (moving mattress biofilm reactor) for TAN (total ammonium nitrogen) discount. After passing by way of a countercurrent degasser for the stripping of nitrogen and carbon dioxide, the handled water is lastly pumped to some head tanks, previous 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 highly dependent on a relentless circulate of water via the facility. 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 working prices. Consequently, the principle components of the water remedy loops will have to have top-class efficiencies, significantly the recirculation pumps.
THE SOLUTION
As a long-term supplier of kit (pumps and turbines) to different Nordlaks vegetation, Sulzer was concerned at an early stage of the model new challenge. In collaboration with the Momek Group, a big industrial service provider in Scandinavia, the pumps had been rigorously selected, not only to fulfil the necessities in the course of the guarantee interval, however to run optimally and economically during 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 put in and are working continuously. In addition, five VUPX submersible propeller pumps are used on intermittent obligation when the fish tanks are emptied in the course of the transfer of smolts.
New Nordlaks fish farm in Innhavet, Norway.
CUSTOMER BENEFIT
By choosing to work with a trusted companion, the shopper made positive to get quick and everlasting technical help, in addition to the most effective products. The recirculation pumps have the next major advantages:
Extremely excessive hydraulic efficiencies that by far exceed the strictest power laws for water pumps. This means big energy savings over time and smaller complete value of possession, obligation points near BEP (best efficiency points), low rotation speeds, and inflexible baseplates grouted in concrete. The pump items are working easily with minimized vibration levels. Superior-grade materials is used for all wetted components. For the choice of pump material in touch with brackish water, the long-term perspective favored duplex chrome steel rather than 316SS. Duplex steels have better design energy than austenitic stainless steels, in addition to higher corrosion, abrasion, and pitting resistance. In the end, upkeep costs and the risk of downtime are decreased.
Sulzer is a acknowledged provider in the fish farm market, with progressive and confirmed pumping, mixing, and aeration options, and provides highly energy-efficient products with low life-cycle costs and the smallest attainable environmental footprint. As a fabric specialist in a variety of contemporary water, brackish water, seawater, and brine applications, we will provide pumps in forged iron, 316 stainless-steel, duplex, super duplex, SMO, etc. .
Water treatment system course of chart.
FOR MORE INFORMATION
For extra data on Oerlikon Balzers and their family of DLC surface options, please go to https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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