Image analysis procedure for studying Back-Diffusion phenomena from low-permeability layers in laboratory tests.

Sci Rep

Department of Civil, Building and Environmental Engineering (DICEA), University of Rome "La Sapienza", Via Eudossiana 18, 00184, Rome, Italy.

Published: July 2016

In this study, the long-term tailing derived from the storage process of contaminants in low-permeability zones is investigated. The release from these areas in the groundwater can be considered a long-term source that often undermines remediation efforts. An Image Analysis technique is used to analyze the process and evaluate the concentrations of a tracer at different points of the test section. Furthermore, the diffusive flux from the low-permeability lenses is determined. To validate the proposed technique, the results are compared with samples, and the diffusive fluxes resulting from the low-permeability zones of the reconstructed aquifer are compared with a theoretical approach.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4964599PMC
http://dx.doi.org/10.1038/srep30400DOI Listing

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