Solute transport measurement by ion-selective electrodes in fractured tuff

Persistent Link:
http://hdl.handle.net/10150/192006
Title:
Solute transport measurement by ion-selective electrodes in fractured tuff
Author:
Chuang, Yueh, 1961-
Issue Date:
1988
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:
Coated-wire ion-selective electrodes were used to monitor the breakthrough of chloride in a tuff test block with a natural fracture. Minute samples of tracer solution were collected with filter paper. Preliminary results indicate the technique worked well for studying transport behavior in fractured rock at near-saturated flow conditions. It also appears to be a promising technique at unsaturated conditions. Breakthrough curves in the fracture and matrix, and a spatial concentration distribution map of the fracture, suggest the existence of preferential flow paths in the fracture segment, and substantial diffusion into the matrix. Estimates of average travel velocity, dispersion coefficient and longitudinal dispersivity in the fracture, are obtained using temporal moments analysis. Estimates of transport parameters in the matrix are hampered by insufficient data and the complex solute concentration history. A case study of the test block using a boundary integral method computer model helped to interpret the data.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Groundwater flow.; Radioactive waste disposal in the ground.; Fracture mechanics.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Evans, D. D.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleSolute transport measurement by ion-selective electrodes in fractured tuffen_US
dc.creatorChuang, Yueh, 1961-en_US
dc.contributor.authorChuang, Yueh, 1961-en_US
dc.date.issued1988en_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.abstractCoated-wire ion-selective electrodes were used to monitor the breakthrough of chloride in a tuff test block with a natural fracture. Minute samples of tracer solution were collected with filter paper. Preliminary results indicate the technique worked well for studying transport behavior in fractured rock at near-saturated flow conditions. It also appears to be a promising technique at unsaturated conditions. Breakthrough curves in the fracture and matrix, and a spatial concentration distribution map of the fracture, suggest the existence of preferential flow paths in the fracture segment, and substantial diffusion into the matrix. Estimates of average travel velocity, dispersion coefficient and longitudinal dispersivity in the fracture, are obtained using temporal moments analysis. Estimates of transport parameters in the matrix are hampered by insufficient data and the complex solute concentration history. A case study of the test block using a boundary integral method computer model helped to interpret the data.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshGroundwater flow.en_US
dc.subject.lcshRadioactive waste disposal in the ground.en_US
dc.subject.lcshFracture mechanics.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.chairEvans, D. D.en_US
dc.contributor.committeememberYeh, Jimen_US
dc.contributor.committeememberBassett, Randyen_US
dc.identifier.oclc213446622en_US
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