Oxygenation
High-efficiency oxygen cones, diffusers, and injection systems for commercial stocking densities.
What Problem It Solves
Insufficient dissolved oxygen is the most immediate risk in intensive RAS, leading to stress, reduced feed conversion, and mortality.
Position in a RAS Flow
Typically after degassing and before final disinfection and return line to tanks.
How It Works
Pure oxygen or enriched air is injected and contacted with process water via cones, U-tubes, or low-head diffusers to achieve target DO levels before return to culture tanks.
Key Design Considerations
- •Calculate O2 demand from biomass and temperature
- •Plan backup oxygen supply and alarms
- •Avoid supersaturation in sensitive hatchery loops
- •Integrate DO probes with automated controls
Common Mistakes
- •Sizing only for average biomass, not harvest peak
- •No redundant O2 source for commercial farms
- •Poor probe placement giving false readings
TurnkeyRAS Integration Advantage
Oxygen systems are designed with full loop hydraulics, biofilter oxygen demand, and emergency response logic.
Technical Specifications
- O2 sources
- LOX, PSA, bulk supply
- Transfer efficiency
- Project-specific cone/diffuser selection
- Monitoring
- Dual DO probes with alarm interlocks
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Hot Climate RAS Project Story
A commercial aquaculture project in the Middle East faced extreme ambient heat, high evaporation rates, and limited freshwater availability. Traditional flow-through or pond systems could not meet biosecurity and water efficiency targets.
TurnkeyRAS delivered a chilled RAS concept with optimized insulation strategy, evaporation recovery planning, redundant oxygenation, and climate-specific automation alarms. Mechanical filtration and biofiltration were sized for peak summer loading.
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