Description
The permeate always migrates to the lower concentration in three steps:
- Sorption (at the interface): Gases, vapour or dissolved chemicals or suspended substances are adsorbed at the surface of the solid.
- Diffusion (through the solid): The permeate penetrates the solid material through pores or molecular gaps.
- Desorption: The adsorbate leaves the solid as a gas.
Read more about this topic: Permeation
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