Oxygen Cones

 

  
   
   
     
 

Providing sufficient oxygen to the fish is critical to management of an aquaculture facility.  Oxygenation is one of the most effective methods of increasing production capacity and optimizing the use of available water resources. An oxygen cone is a pressurized down-flow bubble contactor which is used to efficiently transfer oxygen into solution.

Oxygenation Tech Info >>>

 
 
 
     
 

How It Works

The solubility of a gas in water is increased by enclosing it in a pressurized vessel. Water flows into the top of the vessel at a relatively high velocity. As it moves down into the conical shaped vessel, the cross sectional area increases and the water velocity is reduced proportionally. Gas bubbles (normally oxygen or ozone) are injected into the water as it enters the cone. At the top of the vessel, the downward velocity overcomes the buoyancy of the bubbles. However, as the velocity of the water decreases, the bubbles enter an area where the downward thrust of the water is equal to the upward buoyant lift of the bubbles. The bubbles remain suspended in this section of the cone until fully dissolved into the water. The concentration of dissolved gas in the water discharged from the bottom of the cone can be several times the normal saturation concentration at atmospheric pressure.

Related Equipment - Oxygen Saturators >>>

 
 

 

  
  • Highly efficient – As the bubbles remain inside the cone until dissolved, gas transfer efficiencies of 85% or higher can be achieved
  • Suitable for dissolving oxygen or ozone into culture water
  • Small footprint
  • Most oxygen cones operate at pressures of less than 25 psi
  • Sizes available to suit most flow rates and pressures up to 40 psi
  • Flexibility since changes in cones areas with depth means that a cone can handle a range of flow rates
  • Pumps, pressure regulators, gas supply and distribution equipment can be supplied as needed

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