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.
