Evaluation of fluorocarbon compounds as ground water tracers : soil column studies

Persistent Link:
http://hdl.handle.net/10150/191705
Title:
Evaluation of fluorocarbon compounds as ground water tracers : soil column studies
Author:
Brown, James Douglas,1952-
Issue Date:
1980
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Fluorocarbon compounds have potential value as hydrologic tracers. The compounds are easily detectable in small amounts, and background hydrologic concentrations are usually small. This thesis documents soil column studies which were designed to test the mobility of fluorocarbon compounds in a controlled saturated flow regime. The fluorocarbon compounds were passed, in aqueous solutions, through columns filled with Ottowa sand, Yolo sandy loam, and crushed coal. Salt tracers were used as control substances. The fluorocarbon tracer effluent concentrations were compared to the salt tracer effluent concentrations so that relative tracer mobilities could be analyzed. In all tests, the fluorocarbon tracers exhibited delayed breakthrough characteristics. Delays were least in the Ottowa sand, significant in the Yolo sandy loam, and severe in the crushed coal. Longitudinal dispersion coefficients (D(L)) were calculated for the various tests. Fluorocarbon tracer D(L) values averaged 3.9 times higher than the salt tracer D(L) values. Distribution coefficient analysis yielded fluorocarbon tracer values that averaged 8.0 times the salt tracer values. Nonspecific electrical phenomena probably caused the fluorocarbon tracer delays, and related parameters such as polarizability and aqueous solubility are speculated to be predictive parameters for qualitatively determining fluorocarbon delay times.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Fluorocarbons.; Soil permeability.; Tracers (Chemistry)
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Davis, Stanley N.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleEvaluation of fluorocarbon compounds as ground water tracers : soil column studiesen_US
dc.creatorBrown, James Douglas,1952-en_US
dc.contributor.authorBrown, James Douglas,1952-en_US
dc.date.issued1980en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractFluorocarbon compounds have potential value as hydrologic tracers. The compounds are easily detectable in small amounts, and background hydrologic concentrations are usually small. This thesis documents soil column studies which were designed to test the mobility of fluorocarbon compounds in a controlled saturated flow regime. The fluorocarbon compounds were passed, in aqueous solutions, through columns filled with Ottowa sand, Yolo sandy loam, and crushed coal. Salt tracers were used as control substances. The fluorocarbon tracer effluent concentrations were compared to the salt tracer effluent concentrations so that relative tracer mobilities could be analyzed. In all tests, the fluorocarbon tracers exhibited delayed breakthrough characteristics. Delays were least in the Ottowa sand, significant in the Yolo sandy loam, and severe in the crushed coal. Longitudinal dispersion coefficients (D(L)) were calculated for the various tests. Fluorocarbon tracer D(L) values averaged 3.9 times higher than the salt tracer D(L) values. Distribution coefficient analysis yielded fluorocarbon tracer values that averaged 8.0 times the salt tracer values. Nonspecific electrical phenomena probably caused the fluorocarbon tracer delays, and related parameters such as polarizability and aqueous solubility are speculated to be predictive parameters for qualitatively determining fluorocarbon delay times.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshFluorocarbons.en_US
dc.subject.lcshSoil permeability.en_US
dc.subject.lcshTracers (Chemistry)en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineHydrology and Water Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairDavis, Stanley N.en_US
dc.identifier.oclc213075653en_US
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