How Primozone Ozone Treatment Boosted Fish Production at Valperca

Increased Fish Production with Primozone Ozone Water Treatment at Valperca, Switzerland

How Enhanced Water Quality Helped a Swiss Fish Farm Reach Full Capacity

Valperca, a leading Swiss perch producer in the Valais Valley, struggled with poor water quality in its recirculating aquaculture system (RAS). Low redox levels and high organic load limited fish growth and prevented the farm from achieving full production.

After upgrading to the Primozone Ozone Water Treatment Solution, Valperca saw rapid improvements in water clarity, fish health, and system performance—reaching maximum production capacity within days.

About Valperca: A Leading European Perch Farm

Valperca produces premium European perch, a high-demand delicacy in Switzerland where wild perch availability is limited. Its state-of-the-art RAS facility can generate up to 300 tons of perch annually, making stable water quality essential for consistent output.

The Challenge: Low Redox and Declining Water Quality

In 2010, Valperca faced issues with an underperforming ozone system that failed to meet the needs of its large-scale RAS installation.

The farm experienced:

• Insufficient redox values
• High organic and fungal load
• Slower fish growth and reduced system efficiency

The objective was to restore optimal water quality using reliable, high-capacity ozonation.

Primozone’s Ozone Water Treatment Solution

Primozone delivered a fully customized ozonetreatment system tailored to Valperca’s RAS setup. Installed in October 2010, the solution included:

• 3 × GM6 Ozone Generators for continuous, high-performance ozone production
• Automated System Controller for precise real-time dosing
• Ozone Dissolution & Reaction Tanks for maximum oxidation efficiency

The system integrated seamlessly with Valperca’s existing redox monitoring, instantly raising redox levels and significantly improving water quality.

Results: Cleaner Water, Healthier Fish, Higher Production

With the Primozone system, Valperca achieved:

• Cleaner, clearer water with reduced organic and fungal presence
• Higher and stable redox values, supporting full production
• Improved fish health, faster growth, and better welfare
• Greater RAS efficiency and long-term stability

Valperca quickly reached and maintained full production capacity.

Conclusion: Sustainable Growth Through Advanced Ozone Treatment

Valperca’s results demonstrate the impact of ozone water treatment in modern aquaculture. By delivering consistent water quality, reducing pollutants, and enhancing fish health, Primozone enables farms to scale production sustainably and without chemical additives.

Key Benefits of Ozone in Aquaculture

• Superior water quality with lower organic contamination
• Healthier fish and faster growth rates
• Reduced water usage through effective recirculation
• Chemical-free, environmentally sustainable treatment

✔️ Want to Improve Your RAS Water Quality?

Contact SOS Hygiene Technologies to learn how Primozone ozone technology can boost production and create a cleaner, healthier aquaculture environment.

 Call 0161 221 2231 or email info@soshygiene.com