Nordlaks is a Norwegian fully built-in firm that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has recently completed the building of a brand new smolt facility for fish as much as 1 pound at Innhavet in Hamarøy municipality. This RAS (recirculating aquaculture system) fish farm is the most important of its kind in Norway, with a particular focus on smolt welfare. The land-based facility has state-of-the-art tools for optimal biosecurity and sustainability. At the center 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 therapy 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 various capacities (92,000 to 264,000 gallons) in five separate primary sections. Each section is independent from the others and consists of its personal full 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 primary suspended solid particles. It then falls into an MBBR (moving bed biofilm reactor) for TAN (total ammonium nitrogen) discount. After passing by way of 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 every half an hour. The well-being of the smolts is highly dependent on a relentless move of water through the ability. The reliability of the recirculation pumps is, therefore, of paramount significance.
High general power performance of the RAS plant means a better environmental footprint and reduced working prices. Consequently, the principle components of the water remedy loops will have to have top-class efficiencies, notably the recirculation pumps.
THE SOLUTION
As a long-term supplier of apparatus (pumps and turbines) to other Nordlaks vegetation, Sulzer was concerned at an early stage of the brand new venture. In collaboration with the Momek Group, a large industrial service provider in Scandinavia, the pumps have been carefully selected, not solely to fulfil the requirements in the course of the warranty interval, but to run optimally and economically throughout the whole lifetime of the positioning. For the recirculation of the brackish water, fifty AHLSTAR and BE process pumps in duplex materials have now been put in and are operating constantly. 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 shopper made positive to get quick and permanent technical help, along with one of the best merchandise. The recirculation pumps have the following main advantages:
Extremely excessive hydraulic efficiencies that by far exceed the strictest power rules for water pumps. This means huge vitality financial savings over time and smaller total price of possession, obligation factors close to BEP (best effectivity points), low rotation speeds, and rigid baseplates grouted in concrete. The pump models are working smoothly with minimized vibration levels. Superior-grade material is used for all wetted elements. For the selection of pump material 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, in addition to higher corrosion, abrasion, and pitting resistance. In the end, maintenance costs and the risk of downtime are decreased.
เกจวัดแรงดัน is a recognized provider within the fish farm market, with revolutionary and confirmed pumping, mixing, and aeration options, and supplies highly energy-efficient products with low life-cycle costs and the smallest potential environmental footprint. As a material specialist in a broad range of contemporary water, brackish water, seawater, and brine functions, we will provide pumps in forged iron, 316 stainless steel, duplex, super duplex, SMO, etc. .
Water treatment system process chart.
FOR MORE INFORMATION
For extra information on Oerlikon Balzers and their household of DLC surface solutions, please visit https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
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