Membrane Gas Absorption Processes in Environmental Applications

Membrane gas absorption processes are absorption processes utilising hollow fiber membranes as contacting media for gas and liquid flows. The principle of operation is discussed, followed by a number of environmental applications. Benefits are shown to exist for a variety of environmental problems, as a result of the equipment compactness and flexibility. The use of a crossflow, modular membrane unit enhances the opportunities for the application of membrane gas absorption. Finally, other areas of application of this new membrane based contacting equipment are discussed.