Investigation of zinc uptake processes by manganese-oxide-coated sediments from a mining-contaminated stream, Pinal Creek, Arizona

Persistent Link:
http://hdl.handle.net/10150/191337
Title:
Investigation of zinc uptake processes by manganese-oxide-coated sediments from a mining-contaminated stream, Pinal Creek, Arizona
Author:
Condon, Aiko Kondo.
Issue Date:
2003
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:
In a mining-contaminated stream, Pinal Creek, AZ, Mn-oxide-coated streambed sediments help to attenuate dissolved Zn, Ni, and Co in the stream. Recent laboratory studies have found that Zn uptake occurs continuously and irreversibly in Pinal Creek sediments. In this study, Zn uptake processes were investigated by conducting column and batch experiments with varying pH, water composition, and solid types. Zn uptake was found to be dependent on pH, different phases of pre-existing Mn oxides, and the presence of dissolved Mn, and was independent of the dissolved carbonate concentration. Formations of Zn hydroxide and hetaerolite-like phase are consistent with many of the observations. Zn uptake was especially influenced by different structures of pre-existing Mn oxides in the absence of dissolved Mn. The formation of hetaerolite (ZnMn204) was identified by EXAFS spectroscopy in stream-incubated Mn oxides reacted with Zn in a laboratory column.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Water -- Pollution -- Arizona -- Pinal Creek.; Sedimentation and deposition -- Environmental aspects -- Arizona -- Pinal Creek.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Conklin, Martha H.; Fuller, Christopher C.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleInvestigation of zinc uptake processes by manganese-oxide-coated sediments from a mining-contaminated stream, Pinal Creek, Arizonaen_US
dc.creatorCondon, Aiko Kondo.en_US
dc.contributor.authorCondon, Aiko Kondo.en_US
dc.date.issued2003en_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.abstractIn a mining-contaminated stream, Pinal Creek, AZ, Mn-oxide-coated streambed sediments help to attenuate dissolved Zn, Ni, and Co in the stream. Recent laboratory studies have found that Zn uptake occurs continuously and irreversibly in Pinal Creek sediments. In this study, Zn uptake processes were investigated by conducting column and batch experiments with varying pH, water composition, and solid types. Zn uptake was found to be dependent on pH, different phases of pre-existing Mn oxides, and the presence of dissolved Mn, and was independent of the dissolved carbonate concentration. Formations of Zn hydroxide and hetaerolite-like phase are consistent with many of the observations. Zn uptake was especially influenced by different structures of pre-existing Mn oxides in the absence of dissolved Mn. The formation of hetaerolite (ZnMn204) was identified by EXAFS spectroscopy in stream-incubated Mn oxides reacted with Zn in a laboratory column.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshWater -- Pollution -- Arizona -- Pinal Creek.en_US
dc.subject.lcshSedimentation and deposition -- Environmental aspects -- Arizona -- Pinal Creek.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.chairConklin, Martha H.en_US
dc.contributor.chairFuller, Christopher C.en_US
dc.identifier.oclc226299823en_US
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