Enhancement of Separation of Dissolved Gas from Water using Synthesized Exhalation Mixed to Inlet of a Membrane Module

Dissolved oxygen can be used for a human to breathe underwater like a fish. Water contains limited amounts of dissolved oxygen while a human typically needs larger amounts of oxygen than a fish. The separation system which separates dissolved oxygen from water and applies to breathe underwater requires large amounts of water and large surface area between liquid and gas phase. In this thesis, I used exhalation simulating gas mixed to inlet of the hollow fiber module to make efficient separating system. An exhalation gas contains some amounts of oxygen even if there is less than one in the air. Exhalation simulating gases were mixed through a hollow fiber membrane module and the amounts of gases separated from mixed water were measured, which could be proved to result into enhancement of separation.