ABSTRACT
Permeation is a general term for the concentration-driven membrane-based mass transport process. Application of a pressure difference, an electric field, or temperature considerably intensifies the process, but these special methods are beyond the scope of this overview. Three groups of liquid membranes are usually considered: bulk liquid membrane (BLM), supported liquid
membrane (SLM), or immobilized liquid membrane (ILM), and emulsion liquid membrane (ELM). The scope of this chapter is BLM processes.
