Abstract
In this chapter, the process of adsorption is described and especially its use in wastewater treatment. Some literature reports of previous decades are given in order to compare the adsorption applicability in past and present, and the various isotherm models used are extensively described.
Keywords: Adsorption, Brunauer-Emmer-Teller (BET), Dubinin-Radushkevich, Flory-Huggins, Freundlich, Halsey, Langmuir, Redlich-Paterson, Sips, Temkin, Toth, Wastewater.