At the Heart of the Largest Smolt Facility in Norway

Nordlaks is a Norwegian totally built-in firm that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has lately completed the building of a model 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 biggest of its sort in Norway, with a particular concentrate on smolt welfare. The land-based facility has state-of-the-art equipment for optimal biosecurity and sustainability. At the guts of the RAS process, all recirculation pumps had been equipped by Sulzer.

Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water treatment loops. The dry-installed single-stage overhung pumps are geared up with semi-open impellers and single mechanical seals.
pressure gauge octa -0402 (602,312 gallons per hour at 10 ft of head) submersible propeller pumps (intermittent duty) for the emptying of fish tanks.

The Innhavet RAS plant has thirty-four fish tanks of various capacities (92,000 to 264,000 gallons) in five separate primary sections. Each part is independent from the others and consists of its own complete water treatment system in a semi-closed loop (98 percent 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 principle suspended stable particles. It then falls into an MBBR (moving mattress 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, prior to oxygenation and return to the fish tanks.
In every fish tank, the water is fully renewed every half an hour. The well-being of the smolts is extremely dependent on a continuing circulate of water via the facility. The reliability of the recirculation pumps is, subsequently, of paramount significance.
High overall energy efficiency of the RAS plant means a greater environmental footprint and lowered working costs. Consequently, the main parts of the water therapy loops should have top-class efficiencies, significantly the recirculation pumps.

As a long-term supplier of apparatus (pumps and turbines) to other Nordlaks plants, Sulzer was concerned at an early stage of the new venture. In collaboration with the Momek Group, a big industrial service supplier in Scandinavia, the pumps have been rigorously chosen, not only to fulfil the necessities in the course of the warranty period, but to run optimally and economically during the whole lifetime of the site. For the recirculation of the brackish water, fifty AHLSTAR and BE course of pumps in duplex material have now been installed and are operating constantly. In pressure gauge , 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.

By selecting to work with a trusted partner, the client made positive to get fast and everlasting technical support, in addition to the best merchandise. The recirculation pumps have the next main advantages:
Extremely excessive hydraulic efficiencies that by far exceed the strictest energy rules for water pumps. This means huge power financial savings over time and smaller complete cost of possession, obligation points near BEP (best effectivity points), low rotation speeds, and inflexible baseplates grouted in concrete. The pump models are working smoothly with minimized vibration ranges. Superior-grade material is used for all wetted parts. For the choice of pump material in contact with brackish water, the long-term perspective favored duplex stainless steel rather than 316SS. Duplex steels have higher design energy than austenitic stainless steels, as properly as larger corrosion, abrasion, and pitting resistance. In the end, upkeep prices and the risk of downtime are lowered.
Sulzer is a acknowledged provider within the fish farm market, with innovative and confirmed pumping, mixing, and aeration options, and offers extremely energy-efficient products 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 functions, we can supply pumps in cast iron, 316 stainless-steel, duplex, super duplex, SMO, and so forth. .
Water therapy system process chart.

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