Oxygenation Cone

An oxygenation cone is a closed hydraulic reactor, shaped like an inverted cone (wider at the top), used to efficiently dissolve pure oxygen into water. It is widely used in aquaculture to improve water quality and fish health.

How It Works:

1. Water and oxygen inlet:

   • Deoxygenated water enters from the top of the cone.

   • At the same time, pure oxygen gas is injected under pressure into the cone.

2. Mixing and dissolution:

   • The water flow slows down inside the cone due to its widening shape.

   • This increases the contact time between oxygen bubbles and water.

   • The pressure and conical design ensure near-complete oxygen dissolution.

3. Outlet:

   • Oxygen-rich water exits from the bottom of the cone and is distributed to tanks or recirculating systems.

Technical Features:

• Materials: stainless steel, PVC, HDPE, or fiberglass.

• Operating pressure: 1 to 4 bar depending on the model.

• Saturation rate: up to 95–100%, or higher under optimal conditions.

• Typical flow rate: varies based on cone size (from a few m³/h to several dozen).

Advantages:

• Very high oxygenation efficiency (better than traditional air diffusers).

• Reduced oxygen loss.

• Compact and energy-efficient.

• Easy to integrate into recirculating aquaculture systems (RAS).

Applications:

• Intensive fish farming (trout, salmon, tilapia, etc.).

• RAS systems.

• Quarantine or treatment tanks.

• Emergency oxygenation (e.g., heatwaves or fish stress).