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dc.contributor.advisorReible, Danny D.en
dc.creatorDunlap, Patrick Johnen
dc.date.accessioned2011-07-08T15:10:09Zen
dc.date.available2011-07-08T15:10:09Zen
dc.date.issued2011-05en
dc.date.submittedMay 2011en
dc.identifier.urihttp://hdl.handle.net/2152/ETD-UT-2011-05-3594en
dc.descriptiontexten
dc.description.abstractContaminated sediments represent a common environmental problem because they can sequester large quantities of contaminants which can remain long after the source of pollution has been removed. From the sediment these hazardous compounds are released into the sediment porewater where it can partition into organisms in the sediment and bioaccumulate up the food web; leading to an ecological and human health concern. The objective of this work is to investigate an emerging option in contaminated sediment remediation; specifically an option for in-situ treatment known as active capping. Conventional capping uses clean sediment or sands to separate contaminated sediment from overlying water and biota. Active capping is the use of a sorptive amendment to such a cap to improve its effectiveness. This work focuses on granular materials as direct amendments to conventional caps including; granular activated carbon (GAC), iron/palladium amended GAC, alumina pillared clay, rice husk char, and organically modified clays. All materials were investigated in batch sorption tests of benzene, chlorobenzene, and naphthalene in DI water. Additionally porewaters from three sites were extruded and the concentrations of polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) were measured. At Manistique Harbor and Ottawa River PCBs were identified as the primary contaminant of concern while PAHs were the contaminant of concern at the Grand Calumet River. At these sites a solvent extraction method was used to analyze the sediment concentrations of the contaminants of concern. From the former batch tests activated carbon and a commercially available organoclay were chosen for further investigation. This includes PAHs in batch sorption tests using extruded sediment porewater to investigate matrix effects, and PCB sorption in distilled water.en
dc.format.mimetypeapplication/pdfen
dc.language.isoengen
dc.subjectSedimenten
dc.subjectContaminated sedimentsen
dc.subjectRemediationen
dc.subjectSediment cappingen
dc.subjectPolynuclear aromatic hydrocarbonsen
dc.subjectPAHsen
dc.subjectPolychlorinated biphenylsen
dc.subjectPCBsen
dc.subjectActivated carbonen
dc.subjectOrganoclayen
dc.subjectSorptionen
dc.subjectClaysen
dc.subjectOttawa Riveren
dc.subjectRiversen
dc.subjectQuébec(Province)en
dc.subjectOntarioen
dc.subjectMainstique harboren
dc.subjectGreat Lakesen
dc.subjectIllinoisen
dc.subjectIndianaen
dc.subjectGrand Calumet Riveren
dc.subjectMichiganen
dc.titleEvaluating organic compound sorption to several materials to assess their potential as amendments to improve in-situ capping of contaminated sedimentsen
dc.date.updated2011-07-08T15:10:35Zen
dc.identifier.slug2152/ETD-UT-2011-05-3594en
dc.contributor.committeeMemberLiljestrand, Howarden
dc.description.departmentCivil, Architectural, and Environmental Engineeringen
dc.type.genrethesisen
thesis.degree.departmentCivil, Architectural, and Environmental Engineeringen
thesis.degree.disciplineEnvironmental and Water Resources Engineeringen
thesis.degree.grantorUniversity of Texas at Austinen
thesis.degree.levelMastersen
thesis.degree.nameMaster of Science in Engineeringen


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