New method for porewater extraction from claystone and determination of transport properties with results for Opalinus Clay (Switzerland)
Abstract
A new technique to porewater extraction from claystone employs advective displacement of the in situ porewater by traced artificial porewater. Monitoring of tracer breakthrough yields species-specific transport properties. Results for Opalinus Clay from the Mont Terri Research Laboratory indicate that the chemical disturbances due to the method are minimal, and the observed significant differences in transport properties for Br– and 2H are in agreement with existing data. Sampling times are 2–4 months, and observation of tracer breakthrough takes 12–24 months at hydraulic conductivity of ∼10-13 m/s.
Date Issued
2004
Publication Type
Conference Item
Subject(s)
Language(s)
en
Author(s)
Editor(s)
Wanty, R.B. | |
Seal, R.R. |
Additional Credits
Publisher
Taylor & Francis Group
ISBN
90-5809-641-6
Title of Event
Access(Rights)
metadata.only