Dispersivity Determination Through a Modeling Approach From a Tracer Test Based on Total Br Concentration in Soil Samples

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Title: Dispersivity Determination Through a Modeling Approach From a Tracer Test Based on Total Br Concentration in Soil Samples
Authors: Valdes-Abellan, Javier | Jiménez-Martínez, Joaquín | Candela, Lucila
Research Group/s: Ingeniería del Terreno y sus Estructuras (InTerEs)
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Civil
Keywords: Bromine | Tracer test | X-ray fluorescence analysis | Inverse modeling | Dispersivity
Knowledge Area: Ingeniería Hidráulica
Issue Date: Aug-2014
Publisher: Lippincott Williams & Wilkins
Citation: Soil Science. 2014, 179(8): 403-408. doi:10.1097/SS.0000000000000079
Abstract: Determination of reliable solute transport parameters is an essential aspect for the characterization of the mechanisms and processes involved in solute transport (e.g., pesticides, fertilizers, contaminants) through the unsaturated zone. A rapid inexpensive method to estimate the dispersivity parameter at the field scale is presented herein. It is based on the quantification by the X-ray fluorescence solid-state technique of total bromine in soil, along with an inverse numerical modeling approach. The results show that this methodology is a good alternative to the classic Br− determination in soil water by ion chromatography. A good agreement between the observed and simulated total soil Br is reported. The results highlight the potential applicability of both combined techniques to infer readily solute transport parameters under field conditions.
Sponsor: This study forms part of the CGL20 10-22168-C03/BTE and CGL201 3-48802-C3-3-R projects, financed by the Spanish Ministry of Economy and Competitiveness.
URI: http://hdl.handle.net/10045/50849
ISSN: 0038-075X (Print) | 1538-9243 (Online)
DOI: 10.1097/SS.0000000000000079
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2014 by Lippincott Williams & Wilkins
Peer Review: si
Publisher version: http://dx.doi.org/10.1097/SS.0000000000000079
Appears in Collections:INV - INTERES - Artículos de Revistas
INV - IngHA - Capítulos de Libros

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