Chemical stability and adsorption of anionic tracers in an acid environment

Persistent Link:
http://hdl.handle.net/10150/191828
Title:
Chemical stability and adsorption of anionic tracers in an acid environment
Author:
Serlin, Carol L.
Issue Date:
1984
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:
The effectiveness of anionic compounds as tracers in the environment is determined by factors such as ion chemical stability and adsorption. In extremely acid systems (pH = three) anion adsorption could become significant. This research investigated the role of fluid pH upon anion stability and adsorption in order to identify tracers for field use at a uranium mill in Colorado. Stability, column, and batch tests were conducted to assess anion chemical reactivity and adsorption as a function of varying pH. Three tracers, bromide (Br⁻), thiocyanate (SCN⁻), and chlorodifluoracetic acid (CDF) were tested extensively on standard silica sand and mill tailings soil. Laboratory testing indicated that anion adsorption increased as pH decreased. SCN⁻ was most affected. All anions were relatively stable in acid solution. However, SCN degraded slowly in sulfuric acid solution through oxidation and hydrolysis. Although physical adsorption occured at acid pH, all anions were considered useful as tracers in the environment.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Groundwater -- Pollution.; Tracers (Chemistry); Anions.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Thompson, Glenn M.; Davis, Stanley N.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleChemical stability and adsorption of anionic tracers in an acid environmenten_US
dc.creatorSerlin, Carol L.en_US
dc.contributor.authorSerlin, Carol L.en_US
dc.date.issued1984en_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.abstractThe effectiveness of anionic compounds as tracers in the environment is determined by factors such as ion chemical stability and adsorption. In extremely acid systems (pH = three) anion adsorption could become significant. This research investigated the role of fluid pH upon anion stability and adsorption in order to identify tracers for field use at a uranium mill in Colorado. Stability, column, and batch tests were conducted to assess anion chemical reactivity and adsorption as a function of varying pH. Three tracers, bromide (Br⁻), thiocyanate (SCN⁻), and chlorodifluoracetic acid (CDF) were tested extensively on standard silica sand and mill tailings soil. Laboratory testing indicated that anion adsorption increased as pH decreased. SCN⁻ was most affected. All anions were relatively stable in acid solution. However, SCN degraded slowly in sulfuric acid solution through oxidation and hydrolysis. Although physical adsorption occured at acid pH, all anions were considered useful as tracers in the environment.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshGroundwater -- Pollution.en_US
dc.subject.lcshTracers (Chemistry)en_US
dc.subject.lcshAnions.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.chairThompson, Glenn M.en_US
dc.contributor.chairDavis, Stanley N.en_US
dc.contributor.committeememberEvans, Daniel D.en_US
dc.contributor.committeememberWilson, Lorne G.en_US
dc.identifier.oclc213299487en_US
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