Dielectric and conductivity measurements as proxy method to monitor contamination in sandstone

dc.contributor.author	Σάλτας, Βασίλης	el
dc.contributor.author	Βαλλιανάτος, Φίλιππος	el
dc.contributor.author	Σουπιός, Παντελής	el
dc.contributor.author	Μακρής, Ιωάννης Π.	el
dc.contributor.author	Τριάντης, Δήμος Α.	el
dc.date.accessioned	2015-04-05T17:15:32Z
dc.date.available	2015-04-05T17:15:32Z
dc.date.issued	2015-04-05
dc.identifier.uri	http://hdl.handle.net/11400/8246
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.elsevier.com	en
dc.subject	dielectric spectroscopy
dc.subject	Sandstone
dc.subject	Leachate
dc.subject	Contamination
dc.subject	Διηλεκτρική φασματοσκοπία
dc.subject	Ψαμμίτης
dc.subject	Στραγγίσματα
dc.subject	Μόλυνση
dc.title	Dielectric and conductivity measurements as proxy method to monitor contamination in sandstone	en
heal.type	journalArticle
heal.classification	Geography
heal.classification	Environmental sciences
heal.classification	Γεωγραφία
heal.classification	Περιβαλλοντικές επιστήμες
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85053986
heal.classificationURI	http://skos.um.es/unescothes/C01397
heal.classificationURI	N/A-Γεωγραφία
heal.classificationURI	N/A-Περιβαλλοντικές επιστήμες
heal.keywordURI	http://lod.nal.usda.gov/192546
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85075433
heal.identifier.secondary	doi:10.1016/j.jhazmat.2006.08.051
heal.language	en
heal.access	free
heal.publicationDate	2007-04-02
heal.bibliographicCitation	SALTAS, V., VALLIANATOS, F., SOUPIOS, P., MAKRIS, I.P. & TRIANTIS, D.A. (2007). Dielectric and conductivity measurements as proxy method to monitor contamination in sandstone. Journal of Hazardous Materials. [Online] 142 (1-2). p.520-525. Available from: http://www.sciencedirect.com/ [Accessed 30/08/2006]	en
heal.abstract	The present work investigates whether dielectric spectroscopy can be used to detect contamination, which may leach in a natural porous material, due to the spreading of contaminants. For this purpose, dielectric and conductivity measurements, in the frequency range from 10 mHz to 1 MHz, were carried out in sandstone samples, partially filled or saturated with solutions of leachates, at different concentrations. The experimental results suggest the dominant role of free water to the measured electrical conductivity and dielectric permittivity in contaminated samples with high water content. On the other hand, various relaxation mechanisms were observed in dried samples at different leachate concentrations. Experimental data were fitted using the Havriliak–Negami dielectric relaxation function, superimposed with a conductivity term. The determined parameters of the fitting function may serve to distinguish between different amounts of leachate in sandstone samples.	en
heal.publisher	Elsevier	en
heal.journalName	Journal of Hazardous Materials	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true