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WATER TREATMENT


GAS NITROGEN REDUCTION IN FISH FARMING

Water Treatment

Project

Gas Nitrogen Reduction in Fish Farming

Client

Quimeyco

Year

2012

The fish farming of the Carhuelo River has concentrations of gases, in the incoming water, above 100% quite frequently. The Disolved Gas Sobresaturation (DGS) has long been a source of health problems for fish, both in natural waters and fish farms, in what is known as gas bubble disease (GBD). The supersaturation of dissolved gases is a condition that exists in many bodies of water, both natural and artificial. This phenomenon occurs when the partial pressures of atmospheric gases in the solution exceed their respective partial pressures in the atmosphere.

To solve this problem ERH Consult has designed a gas concentration reduction system, in which a high degree of automation has been sought to adjust the operating parameters to the changing needs of the system.

The projected installation favors the partial degassing of the water by reducing the pressure (reducing the saturation concentration) and creating a thin air – water exchange film (to allow the degassing to the new concentration of saturation). A system of thin sheets and dumps inside a sealed chamber under vacuum conditions are the core of the installation.

TASKS
Design of the treatment system.