Unsaturated water movement through paraho retorted oil shale at Anvil Points, Colorado

Persistent Link:
http://hdl.handle.net/10150/191767
Title:
Unsaturated water movement through paraho retorted oil shale at Anvil Points, Colorado
Author:
Freshley, Mark David.
Issue Date:
1982
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:
Surface retorting of oil shale on a commercial scale will require disposal of large quantities of spent shale, representing a potential environmental problem. Concern is with release and migration of pollutants from spent shale, controlled by water movement in proposed disposal piles. The hydrology of spent-shale disposal was investigated by using a one-dimensional, unsaturated flow model. A disposal pile in final constructed form, a disposal pile constructed over time, and a disposal pile with a revegetated surface were considered. Results of simulation indicate that at water contents proposed by the oil-shale industry, water movement through the disposal piles is a long-term process. Simulation of plants demonstrates that revegetation significantly reduces water storage in the profile. A first-order sensitivity analysis demonstrates that the model is sensitive to parameters controlling supply of water in the profile and less sensitive to parameters controlling movement of water. Recommendations are made for future research in both modeling and field measurements.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Oil-shales -- Waste disposal -- Mathematical models.; Spoil banks -- Leaching.; Groundwater -- Pollution.; Groundwater flow -- Mathematical models.; Oil-shales -- Colorado -- Anvil Points.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Evans, Daniel D.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleUnsaturated water movement through paraho retorted oil shale at Anvil Points, Coloradoen_US
dc.creatorFreshley, Mark David.en_US
dc.contributor.authorFreshley, Mark David.en_US
dc.date.issued1982en_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.abstractSurface retorting of oil shale on a commercial scale will require disposal of large quantities of spent shale, representing a potential environmental problem. Concern is with release and migration of pollutants from spent shale, controlled by water movement in proposed disposal piles. The hydrology of spent-shale disposal was investigated by using a one-dimensional, unsaturated flow model. A disposal pile in final constructed form, a disposal pile constructed over time, and a disposal pile with a revegetated surface were considered. Results of simulation indicate that at water contents proposed by the oil-shale industry, water movement through the disposal piles is a long-term process. Simulation of plants demonstrates that revegetation significantly reduces water storage in the profile. A first-order sensitivity analysis demonstrates that the model is sensitive to parameters controlling supply of water in the profile and less sensitive to parameters controlling movement of water. Recommendations are made for future research in both modeling and field measurements.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshOil-shales -- Waste disposal -- Mathematical models.en_US
dc.subject.lcshSpoil banks -- Leaching.en_US
dc.subject.lcshGroundwater -- Pollution.en_US
dc.subject.lcshGroundwater flow -- Mathematical models.en_US
dc.subject.lcshOil-shales -- Colorado -- Anvil Points.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, Daniel D.en_US
dc.contributor.committeememberNeuman, Shlomo P.en_US
dc.contributor.committeememberMaddock III, Thomasen_US
dc.identifier.oclc212909527en_US
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