Jump to main content
Jump to site search

Issue 5, 2019
Previous Article Next Article

Adsorption of organic micropollutants onto biochar: a review of relevant kinetics, mechanisms and equilibrium

Author affiliations

Abstract

As an alternative to activated carbon, biochar has been considered for removal of organic micropollutants from water and wastewater via adsorption. This review elaborates on the fundamental basis of adsorption kinetics, mechanisms, and equilibrium with respect to biochar-based adsorption of micropollutants. The objectives include: 1) linking biochar surface properties with adsorption abilities, 2) categorizing the kinetics of adsorption of aqueous-phase organic compounds onto biochar, 3) categorizing the molecular-scale interactions between organic micropollutants and biochar, and 4) reviewing existing quantitative methods for characterizing adsorption equilibrium of organic micropollutants from water onto an adsorbent surface. To fulfill these goals, the relationships among biochar surface properties, adsorption kinetics, mechanisms, and equilibrium were clarified as current literature often lacks such discussion or may include conflicting descriptions. Due to its heterogeneous nature, research on biochar's adsorption potential for micropollutants is ambiguous. By adapting adsorption theories to biochar application specifically, this review helps to inform future research in terms of addressing knowledge gaps in characterizing and improving biochar adsorption.

Graphical abstract: Adsorption of organic micropollutants onto biochar: a review of relevant kinetics, mechanisms and equilibrium

Back to tab navigation

Publication details

The article was received on 18 Dec 2018, accepted on 11 Mar 2019 and first published on 12 Mar 2019


Article type: Tutorial Review
DOI: 10.1039/C8EW00938D
Citation: Environ. Sci.: Water Res. Technol., 2019,5, 821-838

  •   Request permissions

    Adsorption of organic micropollutants onto biochar: a review of relevant kinetics, mechanisms and equilibrium

    Y. Tong, P. J. McNamara and B. K. Mayer, Environ. Sci.: Water Res. Technol., 2019, 5, 821
    DOI: 10.1039/C8EW00938D

Search articles by author

Spotlight

Advertisements