Lead phosphate deposition in porous media and implications for lead remediation.
Deposition
Lead phosphate
Nanoparticles
Natural organic matter
Remediation
Journal
Water research
ISSN: 1879-2448
Titre abrégé: Water Res
Pays: England
ID NLM: 0105072
Informations de publication
Date de publication:
01 May 2022
01 May 2022
Historique:
received:
31
07
2021
revised:
13
02
2022
accepted:
14
02
2022
pubmed:
2
3
2022
medline:
2
3
2022
entrez:
1
3
2022
Statut:
ppublish
Résumé
Phosphate addition is commonly applied as an effective method to remediate lead contaminated sites via formation of low solubility lead phosphate solids. However, subsequent transport of the lead phosphate particles may impact the effectiveness of this remediation strategy. Hence, this study investigates the mechanisms involved in the aggregation of lead phosphate particles and their deposition in sand columns as a function of typical water chemistry parameters. Clean bed filtration theory was evaluated to predict the particle deposition behavior, using Derjaguin-Landau-Verwey-Overbeek (DLVO) theory to estimate particle-substrate interactions. The observed particle deposition was not predictable from the primary energy barrier in clean bed filtration models, even in simple monovalent background electrolyte (NaNO
Identifiants
pubmed: 35228037
pii: S0043-1354(22)00163-4
doi: 10.1016/j.watres.2022.118200
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
118200Informations de copyright
Copyright © 2022. Published by Elsevier Ltd.