Recirculating Aquaculture - Production Systems
RAS represents the "blue revolution." Because it uses so little water and occupies a small footprint, it can be placed anywhere. This reduces the carbon footprint of "food miles" by growing Atlantic Salmon in the Midwest or Tilapia in the city center. It protects wild oceans from pollution and prevents farmed fish from escaping into the wild.
The water, now cleaner than when it started, is pumped back into the fish tanks. This cycle repeats endlessly, with some systems recycling over 99% of their total volume daily. The Human Element Recirculating aquaculture production systems
💡 : RAS is a "biological spaceship" for fish, using mechanical and biological filters to recycle water indefinitely. RAS represents the "blue revolution
If you'd like to dive deeper into the technical side, let me know: The water, now cleaner than when it started,
The water first hits mechanical filtration, usually a rotating drum filter. This acts like a giant sieve, catching solid particles before they can break down. Once the "heavy" trash is removed, the water moves to the most critical stage: the biofilter.
After the biofilter, the water is "polished." It passes through degassers to strip out carbon dioxide and UV sterilizers or ozone generators to kill any lurking pathogens. Finally, pure oxygen is injected, bringing the levels far higher than what nature could provide.