Adsorption of arsenate.pdf (983.39 kB)
Download fileAdsorption of arsenate, phosphate and humic acids onto acicular goethite nanoparticles recovered from acid mine drainage
journal contribution
posted on 2020-02-04, 11:10 authored by Rodrigo Peralta-Muniz-Moreira, Solange Vandresen, Danielle B. Luiz, Humberto J. José, Gianluca Li-PumaGianluca Li-PumaAcicular goethite nanoparticles (AGNs), obtained from the active treatment of acid mine drainage (AMD) on an industrial scale, were evaluated with respect to their capacity to adsorb the contaminants arsenate, phosphate and humic acids (HAs) in aqueous solution. Kinetics and equilibrium constants that describe the adsorption process were investigated. The adsorption capacity decreased in the order: HAs (37mgCg−1)>As(V) (20mgAs(V) g−1)>phosphate ions (13mgPO43−g−1). The adsorption capacity of the AGNs produced from acid mine drainage to remove arsenate, phosphate or humic acids are similar to those found for other synthetic iron oxides produced under controlled conditions at the laboratory scale. This study demonstrates the valorization of the AGNs product derived from acid mine drainage slurry waste arising from the mining of coal as an effective adsorbent materials for water treatment.
Funding
Brazilian governmental agency the National Council for Technological and Scientific Development (CNPq, Brazil)
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Chemical Engineering
Published in
Journal of Environmental Chemical EngineeringVolume
5Issue
1Pages
652 - 659Publisher
Elsevier BVVersion
- AM (Accepted Manuscript)
Rights holder
© Elsevier Ltd.Publisher statement
This paper was accepted for publication in the journal Journal of Environmental Chemical Engineering and the definitive published version is available at https://doi.org/10.1016/j.jece.2016.12.018.Acceptance date
2016-12-17Publication date
2016-12-28Copyright date
2016ISSN
2213-3437Publisher version
Language
- en