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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 just lately completed the constructing 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 most important 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 course of, all recirculation pumps have been supplied 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 various capacities (92,000 to 264,000 gallons) in 5 separate major sections. Each section is independent from the others and includes its personal complete water treatment system in a semi-closed loop (98 percent recirculation plus 2 % make-up water). The brackish water from the fish tanks first flows by gravity to a rotating drum filter for the elimination of the principle suspended stable 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 finally pumped to some head tanks, previous to oxygenation and return to the fish tanks.
In each fish tank, the water is fully renewed each half an hour. The well-being of the smolts is very depending on a constant move of water through the facility. The reliability of the recirculation pumps is, therefore, of paramount importance.
High overall power performance of the RAS plant means a greater environmental footprint and reduced operating prices. Consequently, the main parts of the water remedy loops must have top-class efficiencies, notably the recirculation pumps.
THE SOLUTION
As a long-term provider of equipment (pumps and turbines) to different Nordlaks plants, Sulzer was involved at an early stage of the model new challenge. In collaboration with the Momek Group, a big industrial service supplier in Scandinavia, the pumps had been rigorously selected, not only to fulfil the requirements during the guarantee period, however to run optimally and economically during the entire lifetime of the positioning. For the recirculation of the brackish water, fifty AHLSTAR and BE process pumps in duplex material have now been put in and are working continuously. 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 companion, the client made positive to get fast and everlasting technical support, in addition to one of the best products. The recirculation pumps have the next main benefits:
Extremely high hydraulic efficiencies that by far exceed the strictest energy laws for water pumps. This means large energy savings over time and smaller whole value of ownership, duty points near BEP (best effectivity points), low rotation speeds, and rigid baseplates grouted in concrete. The pump units are working smoothly with minimized vibration ranges. Superior-grade material is used for all wetted parts. For the selection of pump materials in touch with brackish water, the long-term perspective favored duplex stainless-steel rather than 316SS. Duplex steels have higher design strength than austenitic stainless steels, in addition to greater corrosion, abrasion, and pitting resistance. In the top, upkeep costs and the risk of downtime are reduced.
เพรสเชอร์เกจน้ำ is a recognized supplier within the fish farm market, with revolutionary and confirmed pumping, mixing, and aeration solutions, and offers extremely energy-efficient merchandise with low life-cycle prices and the smallest possible environmental footprint. As a cloth specialist in a variety of contemporary water, brackish water, seawater, and brine purposes, we can provide pumps in forged iron, 316 stainless-steel, duplex, tremendous duplex, SMO, and so forth. .
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FOR MORE INFORMATION
For more 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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