Nordlaks is a Norwegian absolutely integrated firm that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has just lately completed the constructing of a new smolt facility for fish up to 1 pound at Innhavet in Hamarøy municipality. This RAS (recirculating aquaculture system) fish farm is the biggest of its sort in Norway, with a particular concentrate on smolt welfare. The land-based facility has state-of-the-art tools for optimum biosecurity and sustainability. At the guts of the RAS course of, all recirculation pumps had been provided 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 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 unbiased from the others and consists of its personal complete water remedy system in a semi-closed loop (98 percent recirculation plus 2 percent 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 through a countercurrent degasser for the stripping of nitrogen and carbon dioxide, the handled water is finally pumped to some head tanks, prior to oxygenation and return to the fish tanks.
In every fish tank, the water is totally renewed every half an hour. The well-being of the smolts is extremely depending on a continuing move of water via the ability. The reliability of the recirculation pumps is, subsequently, of paramount significance.
High total vitality performance of the RAS plant means a better environmental footprint and lowered operating costs. Consequently, the main elements of the water therapy loops must have top-class efficiencies, notably the recirculation pumps.
THE SOLUTION
As a long-term supplier of equipment (pumps and turbines) to other Nordlaks vegetation, Sulzer was concerned at an early stage of the new challenge. In collaboration with the Momek Group, a big industrial service provider in Scandinavia, the pumps have been fastidiously chosen, not only to fulfil the requirements in the course of the guarantee period, however to run optimally and economically during the whole 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.
เกจ์ลมsumo
By choosing to work with a trusted companion, the consumer made certain to get quick and everlasting technical assist, in addition to the best products. The recirculation pumps have the next major advantages:
Extremely excessive hydraulic efficiencies that by far exceed the strictest power regulations for water pumps. This means big energy financial savings over time and smaller complete value of ownership, responsibility points near BEP (best efficiency points), low rotation speeds, and inflexible baseplates grouted in concrete. The pump units are working smoothly with minimized vibration levels. Superior-grade materials is used for all wetted parts. For the choice of pump materials in touch with brackish water, the long-term perspective favored duplex stainless steel somewhat than 316SS. Duplex steels have higher design energy than austenitic stainless steels, in addition to higher corrosion, abrasion, and pitting resistance. In the end, maintenance prices and the danger of downtime are decreased.
Sulzer is a acknowledged supplier in the fish farm market, with innovative and confirmed pumping, mixing, and aeration options, and offers extremely energy-efficient merchandise with low life-cycle costs and the smallest possible environmental footprint. As a cloth specialist in a variety of contemporary water, brackish water, seawater, and brine applications, we can provide pumps in forged iron, 316 stainless steel, duplex, tremendous duplex, SMO, and so on. .
Water therapy system course of chart.
FOR MORE INFORMATION
For extra data on Oerlikon Balzers and their family of DLC surface options, please visit https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
Share