Adsorption and Desorption of Micropollutants

Micropollutant (MP) contamination of water resources has sparked extensive environmental research. These MPs are frequently found in sewage, groundwater, wastewater, drinking water and surface water. This chapter gives the brief overview of the isotherms of MPs from aqueous solution from various adsorbents such as agricultural solid wastes, activated carbons, clays, and metal–organic-framework. Several isotherm models including Langmuir, Temkin, Freundlich, Dubinin- Radushkevich, Sips, Redlich-Peterson and Toth isotherm were discussed. This chapter demonstrates that the equilibrium graph fits the Langmuir isotherm in most cases and has found successful application in many monolayer adsorption sorption processes. Most of the literatures available perform batch process but this review provides the platform for developing continuous flow systems with large-scale applications at the small-scale also. The majority of the reported studies are done in batch mode, but this review provides a foundation for designing continuous flow systems with industrial applications at the commercial level as well.