Benefits

Both salmonids and other species have proved to meet the highest quality when farmed in Kaldnes™ RAS systems.At first glance, increased growth rate (SGR) and high survival rate are obvious benefits. Furthermore, reduced stress and increased fish welfare are other advantages that Kaldnes™ RAS provides.

Kaldnes™ RAS meets the demand for flexible and reliable water chemistry. Sudden changes that may provoke potential harmful environmental factors, such as sludge accumulation are eliminated.

A central idea behind the Kaldnes™ RAS is low energy input. Therefore, head loss in Kaldnes™ RAS is kept to a minimum. Typical energy consumption rarely exceeds 2 kw/kg fish produced.

A costly input factor in intensive fish farming is pure oxygen. Kaldnes™ RAS therefore utilizes all available oxygen. Kaldnes™ RAS offer special low head oxygenating cones that ensures a full saturation with minimal pressure. Furthermore, excess available oxygen not consumed by the fish culture is utilized by the AnoxKaldnes™ Moving Bed biofilm reactor.

With proven fundamentals for more than 20 years, Kaldnes™ RAS takes fish farming to a new level!

Filtrering

• Particle control down to Nano filtration

Biofilter:

• Maintenance free
• Peak load resistant
• Specially adapted for each client

Aeration and oxgenation

• Removal of both carbon dioxide and nitrogen
• Maximum utilization of added oxygen

Reabillity and operation

• Smallest footprint possible
• Operational friendly
• No need for backflushing of the biofilter

Enviromental / sustainability

• Reduced water consumption
• Reduced energy consumption
• Waste treatment
• Improved feed utilization
• Small foot-print