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Abstract
Vol. 15:
Durchfluß- und Sorptionsverhalten ausgewählter geologischer
Einheiten gegenüber organischen und anorganischen Modellsubstanzen - Untersuchung
an ungestörten Proben.
[Conductivity of Undisturbed Mesozoic Claystones to Organic and Anorganic
Liquids]
Dieter Pötzl
Abstract: Hydraulic conductivity and its susceptibility to changes
in time or exposition to chemicals are mayor factors to describe the stability
of claystones and clayliners. Six mesozoic claystones from Franken/Bavaria,
selected to represent a range of mineralogies, were permeated with water,
sodium chloride and five organic liquids in fixed wall permeameters. The
conductivity of each claystone/water followed by the chosen anorganic
and organic liquid was measured. The organic liquids included an acid,
a base and more or less polar solvents. The organic liquids were acetic
acid, aniline, diethylamine, acetone and ethanol. The conentration of
the permeating liquid was first 0,01 mol/l, then 0,05 mol/l and at last
0,3 mol/l. The permeating tests lasts nearly 2 years in total. Tracer-tests,
mineralogical and physical determinations of the claystones (Rötton, Lehrbergschichten,
Feuerletten, Rhätton, Amaltheenton und Opalinuston) were made in order
to describe the clay-chemical interactions between claystone and organic
solvent.
Paper language: german; german
abstract
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