Browsing Department of Civil Engineering Graduate Theses by Author "Mumford, Kevin G."
Now showing items 1-11 of 11
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Analysis of Hyporheic Flow Induced by a Bar in a Gravel Stream: an Experimental Study
Fruetel, Christopher (2016-06-01)Pipelines are one of the safest means to transport crude oil, but are not spill-free. This is of concern in North America, due to the large volumes of crude oil shipped by Canadian producers and the lengthy network of ... -
Dissolution of Trapped Light Non-Aqueous Phase Liquid in the Presence of Trapped Gas
Shojib, Mahmudul (2015-03-02)The dissolution of residual, or trapped, light non-aqueous phase liquid (LNAPL) is an important process that controls, in part, many LNAPL contaminated site remediation. Smear zones can be created in LNAPL source zones by ... -
Effects of Bubble-Facilitated VOC Transport From LNAPL Smear Zones on Vapor Intrusion
Soucy, NicoleLight non-aqueous phase liquid (LNAPL) sources can pose a significant threat to indoor air through vapour intrusion (VI). Most conceptual and numerical models of VI assume that the transport of volatile organic compounds ... -
Electrical Resistance Heating of Groundwater Impacted by Chlorinated Solvents in Heterogeneous Sand
Munholland, Jonah (2015-01-29)Remediation of sites impacted by dense nonaqueous phase liquids (DNAPLs) is an ongoing, costly challenge where technological improvement is needed to allow for cost-effective cleanup. Remedial processes using in situ ... -
Gas Dynamics during Bench-Scale Electrical Resistance Heating of Water, TCE and Dissolved CO2
Hegele, Paul (2014-03-31)In situ thermal treatment (ISTT) applications require successful gas capture for the effective remediation of chlorinated solvent dense non-aqueous phase liquid (DNAPL) source zones. Gas production and transport mechanisms ... -
Gas Production and Mass Transfer During Electrical Resistance Heating of Clay Lenses
Martin, EricThe objective of this study was to develop a mechanistic understanding of remediation in clay lenses in sand by electrical resistance heating (ERH). Clay lenses are areas of accumulation for dense non-aqueous phase liquid ... -
Investigation of Gas Breakthrough of Two-Dimensional Capillary Barriers using Transparent Soil
Sills, Lee-Ann (2015-03-02)The prediction of gas distributions in the subsurface is critical for many applications, including the remediation of volatile contaminants in groundwater by in situ air sparging, or releases from either shale gas development ... -
Laboratory and Modelling Study Evaluating Thermal Remediation of Tetrachloroethene and Multi-Component NAPL Impacted Soil
Zhao, Chen (2013-10-02)In Situ Thermal Treatment (ISTT) is a candidate remediation technology for dense non-aqueous phase liquids (DNAPLs). However, the relationships between gas production, gas flow, and contaminant mass removal during ISTT are ... -
Laboratory Investigation of Diluted Bitumen Trapping and Dissolution in Gravel
Hossain, Sheikh Zubair (2016-08-26)The Canadian economy is largely dependent on the distribution of large volumes of oil to domestic and international markets by a long network of pipelines. Unfortunately, accidents occur, and oil can leak or spill from ... -
A laboratory study of the effectiveness of thermal remediation on creosote impacted soil
Hicknell, BrianneGroundwater can be impacted by many types of contaminants, some of which are difficult to remediate, such as dense non-aqueous phase liquids (DNAPLs). DNAPLs can exist for long periods of time in the subsurface and may ... -
Quantification of Trapped Diluted Bitumen Droplets in Gravel: an Experimental Study
Lei, Ying (2016-11-02)Adverse environmental effects caused by diluted bitumen (dilbit) spills have led to serious public concern. Compared to marine systems, the cleanup of oil-contaminated sediment in rivers is more difficult. Hyporheic flow, ...