Nordlaks is a Norwegian totally built-in company that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has recently 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 largest of its sort in Norway, with a special give consideration to smolt welfare. The land-based facility has state-of-the-art equipment for optimal biosecurity and sustainability. At the guts 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 feet 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 5 separate main sections. Each part is unbiased from the others and contains its personal complete water therapy system in a semi-closed loop (98 % 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 primary suspended stable particles. It then falls into an MBBR (moving bed biofilm reactor) for TAN (total ammonium nitrogen) reduction. 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 every fish tank, the water is totally renewed each half an hour. The well-being of the smolts is very dependent on a continuing flow of water via the facility. spmk700 of the recirculation pumps is, due to this fact, of paramount importance.
High total power performance of the RAS plant means a greater environmental footprint and lowered operating costs. Consequently, the principle elements of the water remedy loops must have top-class efficiencies, significantly the recirculation pumps.
THE SOLUTION
As a long-term provider of apparatus (pumps and turbines) to other Nordlaks crops, Sulzer was concerned 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 carefully chosen, not solely to fulfil the necessities during the warranty 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 installed and are operating constantly. In addition, five VUPX submersible propeller pumps are used on intermittent responsibility when the fish tanks are emptied during 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 fast and permanent technical support, in addition to the best products. The recirculation pumps have the next main benefits:
Extremely excessive hydraulic efficiencies that by far exceed the strictest energy laws for water pumps. This means large power financial savings over time and smaller whole price of ownership, responsibility factors close to BEP (best effectivity 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 parts. For the selection of pump materials involved with brackish water, the long-term perspective favored duplex stainless-steel quite than 316SS. Duplex steels have better design power than austenitic stainless steels, as well as higher corrosion, abrasion, and pitting resistance. In the end, maintenance prices and the risk of downtime are decreased.
Sulzer is a acknowledged supplier within the fish farm market, with revolutionary and proven pumping, mixing, and aeration solutions, and provides highly energy-efficient merchandise with low life-cycle costs and the smallest possible environmental footprint. As a fabric specialist in a broad range of contemporary water, brackish water, seawater, and brine purposes, we are in a position to provide pumps in cast iron, 316 stainless steel, duplex, super duplex, SMO, and so forth. .
Water therapy system course of chart.
FOR MORE INFORMATION
For more info 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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