Details:

Journal Title:
Water, Air, & Soil Pollution
Personal Author:
Cooper, P. ; Nie, J. ; Larson, S.L. ; Ballard, J.H. ; Knotek‑Smith, H.M. ; ... More +
Cooper, P. ; Nie, J. ; Larson, S.L. ; Ballard, J.H. ; Knotek‑Smith, H.M. ; Celik, A. ; Dasari, S. ; Zhu, X. ; Han, F.X. Less -
Description:
Uranium is a naturally occurring trace element and radionuclide. Uranium is introduced in the environment during industrial activities and nuclear energy accidents involving nuclear power plants, nuclear weapons tests, ore mining, and manufacturing, which may lead to the contamination of groundwater and soil. Hydroxyapatite (HAP) is a natural mineral with a high affinity for uranium in water. Groundwater often contains high carbonate concentrations that may affect uranium removal due to the formation of uranyl carbonate complexes. In order to understand the process of uranium removal, uranium adsorptions on three nano-HAPs were conducted under various biogeochemical conditions. Results showed that the fastest U adsorption occurred onto nano-HAP and U adsorption was strongly affected by biogeochemical conditions such as pH and the presence of carbonates, but less affected by temperature. The current study indicates that the presence of carbonates at pH’s above the neutral range in groundwater may inhibit U removal with nanohydroxyapatites.
Content Notes:
Copyright © 2022, by The Regents of the University of California. All rights reserved. Please direct all requests for permission to photocopy or reproduce article content through the University of California Press's Reprints and Permissions web page,http://www.ucpress.edu/journals.php/p=reprints. Please note that this material is under copyright and may not be reused under any CC license.
Keywords:
[+]
Adsorption
Carbonates
Hydroxyapatite
Uranium
pH effect

Source:
Water Air Soil Pollut (2021) 232: 362
DOI:
https://doi.org/10.1007/s11270-021-05298-7
Document Type:
Journal Article
Funding:
Grant no. NA11SEC4810001-003499 ; Grant no. NA16SEC4810009
Grant no. NA11SEC4810001-003499 ; Grant no. NA16SEC4810009 Less -
Rights Information:
Other
Compliance:
Submitted
Main Document Checksum:
[+]
urn:sha256:7052b76cab7a3b6eef3f6742baebba8320284154609fb492a1750abf16afc06f
File Type:

Supporting Files

• No Additional Files

More +