How Primozone® Supports Sustainable Smolt Production at SalMar Settefisk, Norway

SalMar Settefisk, located in Follafoss, Norway, is part of SalMar ASA, one of the world’s largest and most advanced salmon producers. With an annual output of 10 million smolts, the hatchery plays a crucial role in supplying healthy salmon sustainably.

When expanding its facility with a new Recirculating Aquaculture System (RAS), SalMar selected Primozone® to design and implement a complete ozone water treatment system — combining energy efficiency, reliability, and ease of operation.

Project Objectives

The primary goals of the ozone installation were to:

• Ensure sustainable and reliable water quality
• Enhance smolt health and welfare
• Optimize energy and oxygen efficiency

The Primozone Solution

Primozone delivered a high-performance, turnkey ozone water treatment system designed for seamless integration with SalMar’s RAS setup.

System Components

• GM18 Ozone Generator – High ozone output with minimal energy consumption
• System Controller – Automated, precise control of ozone dosing
• Custom Dissolution System – Efficient ozone transfer and stable operation

The system maintains stable redox control, reduces organic load, and manages pathogens effectively — supporting healthy smolt growth and overall hatchery performance.

Cost- and Energy-Efficient Ozone Technology

Primozone’s modular ozone system offers:

• Energy-efficient ozone generation
• Optimized oxygen utilization
• Reliable system redundancy
• Compact design suitable for space-limited RAS facilities

These features ensure both operational simplicity and cost-effectiveness, critical for modern salmon hatcheries.

Benefits for Water Quality, Smolt Health, and Productivity

High water quality is vital for strong, healthy smolts. At SalMar Settefisk, Primozone’s ozone treatment delivered immediate results:

• Improved water quality – Reduced organic matter and pathogens
• Energy and cost efficiency – Optimized ozone and oxygen usage
• Higher productivity – Faster growth and lower smolt mortality

·      Results at a glance:

Conclusion

The  Primozone® ozone solution demonstrates how advanced ozone water treatment technology drives sustainable growth in aquaculture. By ensuring optimal water quality, energy efficiency, and user-friendly operation, Primozone helps fish farms meet production goals while maintaining environmental standards — setting a benchmark for the future of land-based salmon farming.

For more information on Primozone Ozone Technology contact SOS Hygiene Technologies.

Call 0161 221 2231 or email info@soshygiene.com