Mobility of organic compounds in a soft clay-rich rock (Tégulines clay, France).
Absorption
Adsorption
Anion exclusion
Clay rock
Diffusion
Organic compound
Journal
Chemosphere
ISSN: 1879-1298
Titre abrégé: Chemosphere
Pays: England
ID NLM: 0320657
Informations de publication
Date de publication:
Jul 2021
Jul 2021
Historique:
received:
12
12
2020
revised:
15
02
2021
accepted:
19
02
2021
pubmed:
8
3
2021
medline:
14
5
2021
entrez:
7
3
2021
Statut:
ppublish
Résumé
The migration of organic compounds in soils is a major concern in several environmental issues. Contaminants display distinct behaviours as regards to their specific affinities towards soils constituents. The retention mechanism of hydrophobic compounds by natural organic matter is well known. The retention of ionizable compounds is mainly related to oxides and clay minerals, even if less documented in reductive media. In this work, we investigated the migration of organic compounds in a soft clay-rich sedimentary rock (Tégulines clay, France). The aim was to determine the relative contributions of natural sorbents on retention, and eventual correlations with solutes properties. Both hydrophobic compounds (toluene, benzene, naphthalene) and hydrophilic species (adipate, oxalate, ortho-phthalate, benzoate) were investigated, using batch and diffusion experiments. The retention of neutral aromatic compounds correlates with their lipophilicity (log P
Identifiants
pubmed: 33677271
pii: S0045-6535(21)00517-8
doi: 10.1016/j.chemosphere.2021.130048
pii:
doi:
Substances chimiques
Aluminum Silicates
0
Organic Chemicals
0
Soil
0
Clay
T1FAD4SS2M
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
130048Informations de copyright
Copyright © 2021 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.