Intragranular diffusion: An important mechanism influencing solute transport in clastic aquifers?

Science
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Abstract

Quantification of intragranular porosity in sand-size material from an aquifer on Cape Cod, Massachusetts, by scanning electron microscopy, mercury injection, and epifluorescence techniques shows that there are more reaction sites and that porosity is greater that indicated by standard short-term laboratory tests and measurement techniques. Results from laboratory and field tracer tests show solute nonequilibrium for a reacting ion consistent with a model of diffusion into, and exchange within, grain interiors. These data indicate that a diffusion expression needs to be included in transport codes, particularly for simulation of the transport of radioactive and toxic wastes.

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Publication type Article
Publication Subtype Journal Article
Title Intragranular diffusion: An important mechanism influencing solute transport in clastic aquifers?
Series title Science
DOI 10.1126/science.247.4950.1569
Volume 247
Issue 4950
Year Published 1990
Language English
Publisher AAAS
Description 4 p.
First page 1569
Last page 1572
Country United States
State Massachusetts
Other Geospatial Cape Cod
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