If I were to compare the adsorption of a given type of contaminant on different types of adsorbents, which parameter would best enable the best comparison? The adsorbates can be either organic or inorganic.
Normally, percentage adsorbate removal and maximum adsorption capacity were identfied to be the best parameters for comparison. Among these, maximum adsorption capapcity is the widely used response. Maximum adsorption capacity can be calculated from adsorption isotherm modelling.
the adsorption capacity and the removal too those are the most important parameters but its better to do desorption test (Reuse)
The adsorbent should have high abrasion resistance, high thermal stability and small pore diameters. The higher exposed surface area of adsorbent is responsible for high capacity for adsorption.
It is very difficult to compare, unless we are sure that we are dealing with "pure adsorption", i.e. without the accompanying more or less unfavorable side effects. There are many measures: adsorption efficiency, maximum adsorption capacity, specific surface area, times: e.q. t0.95 or t0.99 etc. However, none of them is all-purpose.
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