Nordlaks is a Norwegian fully built-in company that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has lately completed the constructing of a 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 particular focus on smolt welfare. The land-based facility has state-of-the-art equipment for optimal biosecurity and sustainability. At the heart of the RAS process, all recirculation pumps were provided by Sulzer.
PROJECT DATA
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.
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 primary sections. Each section is unbiased from the others and consists of its personal complete water therapy system in a semi-closed loop (98 % 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 main suspended strong particles. It then falls into an MBBR (moving mattress 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 every fish tank, the water is absolutely renewed every half an hour. The well-being of the smolts is extremely depending on a constant circulate of water by way of the power. The reliability of the recirculation pumps is, due to this fact, of paramount significance.
High general energy efficiency of the RAS plant means a greater environmental footprint and lowered working costs. Consequently, the primary parts of the water treatment 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 crops, Sulzer was concerned at an early stage of the model new challenge. In collaboration with the Momek Group, a large industrial service supplier in Scandinavia, the pumps were rigorously chosen, not only to fulfil the necessities 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 put in and are working repeatedly. In addition, 5 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 selecting to work with a trusted partner, the shopper made positive to get quick and everlasting technical support, in addition to one of the best merchandise. The recirculation pumps have the next major benefits:
Extremely high hydraulic efficiencies that by far exceed the strictest energy laws for water pumps. This means big energy financial savings over time and smaller whole value of possession, duty factors close to BEP (best effectivity points), low rotation speeds, and rigid baseplates grouted in concrete. The pump units are working easily with minimized vibration levels. Superior-grade materials is used for all wetted components. For ราคาเกจวัดแรงดัน of pump materials involved with brackish water, the long-term perspective favored duplex chrome steel quite than 316SS. Duplex steels have better design strength than austenitic stainless steels, as nicely as greater corrosion, abrasion, and pitting resistance. In the top, maintenance prices and the risk of downtime are decreased.
Sulzer is a acknowledged supplier within the fish farm market, with progressive and proven pumping, mixing, and aeration options, and supplies highly energy-efficient products 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 will provide pumps in cast iron, 316 chrome steel, duplex, super duplex, SMO, etc. .
Water treatment system course of chart.
FOR MORE INFORMATION
For more info on Oerlikon Balzers and their household of DLC surface options, please visit https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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