Nordlaks is a Norwegian absolutely built-in firm that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has recently 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 most important of its sort in Norway, with a particular give consideration to smolt welfare. The land-based facility has state-of-the-art equipment for optimum biosecurity and sustainability. At the center of the RAS process, all recirculation pumps had been supplied by Sulzer.
PROJECT DATA
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water treatment loops. The dry-installed single-stage overhung pumps are outfitted 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 major sections. Each section is impartial from the others and contains its own full water therapy system in a semi-closed loop (98 p.c 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 primary suspended solid 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 lastly pumped to some head tanks, previous to oxygenation and return to the fish tanks.
In every fish tank, the water is fully renewed each half an hour. The well-being of the smolts is extremely depending on a continuing circulate of water by way of the power. The reliability of the recirculation pumps is, subsequently, of paramount importance.
High total energy efficiency of the RAS plant means a greater environmental footprint and lowered operating costs. Consequently, the principle parts of the water remedy 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 vegetation, Sulzer was involved at an early stage of the new challenge. In collaboration with the Momek Group, a large industrial service provider in Scandinavia, the pumps have been rigorously selected, not solely to fulfil the necessities through the warranty interval, however to run optimally and economically throughout the whole lifetime of the site. For the recirculation of the brackish water, fifty AHLSTAR and BE course of pumps in duplex materials have now been put in and are working repeatedly. In addition, 5 VUPX submersible propeller pumps are used on intermittent responsibility when the fish tanks are emptied during the switch of smolts.
New Nordlaks fish farm in Innhavet, Norway.
CUSTOMER BENEFIT
By choosing to work with a trusted companion, the consumer made positive to get fast and permanent technical assist, in addition to one of the best products. The recirculation pumps have the next major benefits:
Extremely excessive hydraulic efficiencies that by far exceed the strictest energy regulations for water pumps. This means large power financial savings over time and smaller whole value of possession, obligation points close to BEP (best efficiency points), low rotation speeds, and rigid baseplates grouted in concrete. The pump models are working smoothly with minimized vibration ranges. Superior-grade materials is used for all wetted elements. For the choice of pump material in contact with brackish water, the long-term perspective favored duplex stainless steel somewhat than 316SS. เกจวัดแรงดันpsi have higher design power than austenitic stainless steels, as nicely as higher corrosion, abrasion, and pitting resistance. In the top, maintenance prices and the danger of downtime are decreased.
Sulzer is a acknowledged supplier in the fish farm market, with progressive and proven pumping, mixing, and aeration solutions, and provides extremely energy-efficient products with low life-cycle costs and the smallest attainable environmental footprint. As a material specialist in a wide range of recent water, brackish water, seawater, and brine purposes, we will supply pumps in cast iron, 316 stainless-steel, duplex, super duplex, SMO, and so forth. .
Water therapy system process chart.
FOR MORE INFORMATION
For more information on Oerlikon Balzers and their family of DLC floor solutions, please go to https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
Share