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Journal of Environmental Hydrology
ISSN 1058-3912 |
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Electronic Journal of the International Association for
Environmental Hydrology
JEH Volume 17 (2009), Paper 12 Posted May 29, 2009 LABORATORY COLUMNS: A GUIDE TO CONSTRUCTION, PACKING AND PRELIMINARY TESTS
E. Usunoff ABSTRACT Due to easy operation, low cost and the useful information provided, laboratory columns packed with sediments are widely used for saturated transport studies. These include studies of hydrochemistry, environmental impact, contamination, chemical reaction kinetics, and preservation of water resources. The wide use of experimental miscible tracer displacement does not usually include descriptions of the steps followed in constructing, packing, and calibrating the columns. The fact is that the various tasks involved in column construction, if not carefully planned and executed, may lead to results that are difficult to interpret or are downright meaningless, let alone a waste of time. Based on previous experience, this paper describes the sequential steps in column construction and packing, as well as the type of tests that need to be carried out before using the column. Reference: Usunoff, E., P. Weinzettel, and S. Dietrich. 2009. Laboratory columns: a guide to construction, packing and preliminary tests. Journal of Environmental Hydrology, Vol. 17, Paper 12. CONTACT: S. Dietrich Instituto de Hidrología de Llanuras República de Italia 780 7300 Azul Buenos Aires Province Argentina E-mail: sebadietrich@faa.unicen.edu.ar |
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