Adsorption and its Isotherm – Theory

Adsorption is the process of transferring material from a fluid phase to a solid phase. The transport process involved in adsorption is analyzed by progression in complexity from batch adsorption, one-dimensional, equilibrium adsorption on a column, and one-dimensional, non-equilibrium adsorption. Adsorption is a separation process in which some materials, (adsorbate) is concentrated from a bulk vapor or liquid phase on to the surface of a porous solid (adsorbent). Some common examples of adsorption are the, silica gel packets to adsorb moisture from packaged electronic or optical equipment, and carbon "filter" to deodorize drinking water.