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dc.creatorAziz, Julia Joanne
dc.date.accessioned 2007-08-20T23:58:23Z
dc.date.available 2007-08-20T23:58:23Z
dc.date.issued 2000
dc.identifier.urihttps://hdl.handle.net/1911/17321
dc.description.abstract Contaminants in aquatic systems tend to associate with particles and colloidal material and their impact on the environment is dependent on the nature and behavior of these carrier particles. This study investigates the role of aggregation and sedimentation in the fate and transport of particles and aggregates. Computational fluid dynamics modeling illustrates the significance of the hydrodynamics of porous aggregates on aggregation. Aggregation numerical modeling incorporating the porous fractal nature of aggregates results in accurate representations of particle size distribution evolutions compared to laboratory experiments. Settling velocities of aggregates that show non-Stoke's like behavior can be modeled taking into consideration the drag coefficient correction and the fractal porous density of the flocs. Applying the new aggregation and sedimentation model to a resuspension event suggests that the risk of exposure to contaminants in the water column is minimal as a consequence of washout and larger settling velocities of porous fractal aggregates.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.subjectEnvironmental science
Environmental engineering
dc.title Hydrodynamics of porous flocs in aggregation and sedimentation
dc.type.genre Thesis
dc.type.material Text
thesis.degree.department Environmental Science and Engineering
thesis.degree.discipline Engineering
thesis.degree.grantor Rice University
thesis.degree.level Masters
thesis.degree.name Master of Science
dc.identifier.citation Aziz, Julia Joanne. "Hydrodynamics of porous flocs in aggregation and sedimentation." (2000) Master’s Thesis, Rice University. https://hdl.handle.net/1911/17321.


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