Ensuring Biosecurity for a RAS Facility using UV & Ozone

FIFAX, located in Finland, Åland Island, is one of the largest leading land-based RAS (Recirculating Aquaculture System) facilities, farming rainbow trout with a capacity of 3.2 million kilos annually.

In the summer of 2022, the RAS facility got infected by IHN-virus, requiring a complete facility shutdown for sanitation. Following this, it was evident that biosecurity had to be improved, to increase the possibility for fish welfare even further.

This led them to raise the level of biosecurity by implementing a double-barrier water treatment system that included both UV & Ozone water treatment.

To set up the improved facility for success, the first step involved installing an ozone system for the entire inflow of new water at the pumping station by the sea. Additionally, this water is disinfected using UV systems, which means the facility gets the combined effect of the two technologies. This means that the water is already fully disinfected when it reaches the factory area.

The double-barrier effect has already proven to be a valuable addition to the overall process, minimizing the risk of introducing unwanted substances into the facility.

Since making these implementations, the facility has observed significant improvements in the water quality. This has resulted in better growth rates, lower mortality rates, and ultimately an improved feed conversion rate.

Read more about the project by clicking here.

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