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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.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Intragranular diffusion: An important mechanism influencing solute transport in clastic aquifers?
Series title:
Science
Volume
247
Issue:
4950
Year Published:
1990
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
1569
Last page:
1572
Number of Pages:
4