Membrane degasification


Example for a plant

Membrane degasification has replaced slowly the tray type deaerator during recent years. The stripping of gases like carbonic acid or oxygen out of the water has been and is still an important part of water treatment processes for DI water production. A membrane is needed which retains liquids and allows gases to permeate. Through partial pressure drop between both membrane sides an effective gas reduction can be achieved. The water to be degasified can thus remain under pressure without coming in contact with the secondary degasification stream.

Enviro DTS membrane degasification plants operate in a vacuum in the airstream. The concentration drop between the gas concentration in the water and the gas concentration in the lumen chamber of the module makes the process run.

Usually, groups of modules are installed that can be connected and disconnected individually so that there is always the right amount of water for the different operating modes.