Characteristics And Model Studies For Fluoride And Arsenic Adsorption On Goethite
Abstract
Fluoride and arsenic are major anionic elements of concern in drinking water treatment. The effects of contact time, pH, surface loading and ionic strength on adsorption of fluoride and As(V) were investigated using batch methods. Adsorption of fluoride and As(V) onto goethite obeyed a pseudo second-order rate law. Through experimental data and adsorption kinetic analysis, the affinity of As(V) onto goethite was stronger than fluoride. Fluoride and As(V) uptake by goethite all decreased with pH increasing at the same surface loading; however, ionic strength had slight influence on their adsorption. A surface sites-species model was used to quantify the adsorption of fluoride and As(V) onto goethite as function of pH and surface loading. This model can satisfactorily predict their adsorption characteristics with several adsorption constants. © 2010 The Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences.
Recommended Citation
Y. Tang et al., "Characteristics And Model Studies For Fluoride And Arsenic Adsorption On Goethite," Journal of Environmental Sciences, vol. 22, no. 11, pp. 1689 - 1694, Elsevier, Nov 2010.
The definitive version is available at https://doi.org/10.1016/S1001-0742(09)60307-7
Department(s)
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Adsorption; Arsenic; Fluoride; Goethite
International Standard Serial Number (ISSN)
1001-0742
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2025 Elsevier, All rights reserved.
Publication Date
01 Nov 2010
PubMed ID
21235155
Comments
National Natural Science Foundation of China, Grant 21007048