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Methods for investigation and documentation of the ground beneath planned, operating and abondened waste disposal sites. Field and laboratory studies to investigate containment transport and attenuation in fissured argillites Final report / Methoden zur Erkundung und Beschreibung des Untergrundes von Deponie und Altlasten. Feld- und Laboruntersuchungen zum Stofftransport in grundwasserfuehrenden, gekluefteten Tongesteinen Abschlussbericht

Authors
  • Maier, J.
  • Doerhoefer, G.
  • Niedersaechsisches Landesamt fuer Bodenf...
Publication Date
Jan 01, 1995
Source
OpenGrey Repository
Keywords
Language
German
License
Unknown

Abstract

The groundwater flow and solute transport characteristics of fissured Lower Cretaceous argillites have been investigated at the abandoned Muenchehagen hazardous waste disposal site. The investigations were essentially focussed on the properties and processes that characterize the rocks as a natural migration barrier with special regard to organic contaminants. Basing on a comprehensive field study particularly multitracer experiments and supplementary laboratory diffusion and batch sorption experiments are presented. An one-dimensional semi-analytical transport model (POLLUTE) has been used for the interpretation of field tracer tests and for the evaluation of the impact of matrix diffusion on solute transport at different observation scales. The intense fracturing resulted in a relatively high permeability of the argillites. Solute transport and attenuation in this hydrogeological setting is mainly governed by matrix diffusion and sorption. Dissolved reactive species, such as organic solvents, are most effectively retarded. (orig.) / SIGLE / Available from TIB Hannover: F96B840+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische Informationsbibliothek / Bundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany) / DE / Germany

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