A Pollutant transport investigated through an expansive clay - INSU - Institut national des sciences de l'Univers Accéder directement au contenu
Communication Dans Un Congrès Année : 2004

A Pollutant transport investigated through an expansive clay

Résumé

In the framework of domestic waste disposals, the in-situ compaction of soil is usually used to obtain engineered clay barriers with suitable confining properties. Permeability and pollutant retention are the major properties which should be investigated in this context for barrier evaluation. Considering clay barriers in contact with waste leachates, they may be saturated by solutes of various chemical compositions, including in particular toxic heavy metals. In this context, the expansive Fo-Ca clay, a natural Ca-smectite from the Paris basin of Ypersian (Sparnacian) age, was chosen because of its very low permeability and ability for pollutant retention through cationic exchanges. The smectic is associated with kaolinite (up to 20%), and minor quartz, calcite, goethite and gypsum.

Domaines

Géochimie
Fichier principal
Vignette du fichier
resume_MECC04.pdf (89.07 Ko) Télécharger le fichier

Dates et versions

hal-00090323 , version 1 (30-08-2006)

Identifiants

  • HAL Id : hal-00090323 , version 1

Citer

Chantal Proust, Lydie Le Forestier. A Pollutant transport investigated through an expansive clay. 2nd Mid-European Clay Conference, 2004, Miskolc, Hungary. ⟨hal-00090323⟩
64 Consultations
123 Téléchargements

Partager

Gmail Facebook X LinkedIn More