Browsing Engineering (Faculty of) by Subject "groundwater"
Now showing items 1-14 of 14
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Advancing Microbial Risk Assessments of Subsurface Water Sources
(University of Waterloo, 2020-07-14)Source water microbial quality evaluations are essential for the selection, design, and management of drinking water supplies. As biological sciences and technology continue to advance, how these assessments are performed ... -
Anaerobic Biodegradation of Petroleum Hydrocarbons in Powdered Activated Carbon Groundwater Systems: A Modelling Investigation
(University of Waterloo, 2022-09-19)Subsurface contamination by petroleum hydrocarbons (PHCs) is a widespread issue resulting from oil and gas production, distribution, and use. As a result of improved injection methods and particulate materials, injected ... -
A Case Study for Assessing the Hydrologic Impacts of Climate Change at the Watershed Scale
(University of Waterloo, 2008-01-23)Since the advent of the industrial era atmospheric concentrations of greenhouse gases have been on the rise leading to increasing global mean temperatures. Through increasing temperatures and changes to distributions of ... -
Chaotic Advection for Enhanced Reagent Mixing
(University of Waterloo, 2019-04-17)In situ remediation techniques commonly involve the injection of a reagent into the subsurface to create a zone in which biological and/or chemical reactions lead to mass destruction of contaminants. In these injection-driven ... -
Checkered Landscapes: Quantifying Dominant Control on Nitrogen Legacies and Time Lags along the River Continuum
(University of Waterloo, 2020-08-20)In agricultural watersheds across the world, decades of commercial fertilizer application and intensive livestock production have led to elevated stream nutrient levels and problems of eutrophication in both inland and ... -
Confirming the need for virus disinfection in municipal subsurface drinking water supplies
(Elsevier, 2019-06)Enteric viruses pose the greatest acute human health risks associated with subsurface drinking water supplies, yet quantitative risk assessment tools have rarely been used to develop health-based targets for virus treatment ... -
Effects of Prolonged Shutdown on the Performance and Microbial Activity of Intermittently Operated Biofilters for Manganese Removal from Groundwater: Pilot Scale Study
(University of Waterloo, 2024-04-18)Apart from aesthetic concerns, manganese (Mn) in drinking water has been associated with cognitive and neurobehavioral effects in children. Recently Health Canada has changed its drinking water guidelines for Mn from an ... -
Hydraulic Performance of the Seepage Collection Ditches at the Albian Sands Muskeg River Mine
(University of Waterloo, 2006)The tailings pond at the Muskeg River Mine is a large structure with a 11 km-long ring dyke that contains process affected water (PAW) and tailings sand. The dyke is made of permeable tailings sand and therefore it is ... -
Impact of Anaerobic Biofilm Formation on Sorption Characteristics of Powdered Activated Carbon
(University of Waterloo, 2021-07-23)Subsurface contamination by petroleum hydrocarbons (PHCs) results from the leakage of petroleum products during extraction, processing or transport. It has been documented that activated carbon (AC) can effectively sorb ... -
The Impact of Glaciation and Permafrost on Groundwater Flow
(University of Waterloo, 2016-03-21)Current geologic and climatic conditions need to be considered when choosing an appropriate site for a Deep Geologic Repository (DGR). However, given the million-year timeframe for the radioactivity of the used fuel to ... -
Paleoevolution of Pore Fluids in Glaciated Geologic Settings
(University of Waterloo, 2009-06-17)Nuclear power generation is being regarded as a solution to ever increasing demand for electricity, and concerns over global warming and climate change due to the use of fossil fuels. Although nuclear power generation is ... -
Parameter Estimation and Uncertainty Analysis of Contaminant First Arrival Times at Household Drinking Water Wells
(University of Waterloo, 2007-01-25)Exposure assessment, which is an investigation of the extent of human exposure to a specific contaminant, must include estimates of the duration and frequency of exposure. For a groundwater system, the duration of exposure ... -
Upscaling of Coupled Models with Topography-Driven Surface-Water/Groundwater Interactions
(University of Waterloo, 2016-05-16)Since the 1950s, groundwater and surface water models have evolved to better represent complex hydrological and hydrogeological systems. Part of this evolution has been the coupling of surface and subsurface models to ... -
Upscaling of lateral groundwater flow processes in watershed models
(University of Waterloo, 2021-12-14)Hydrologic models are essential tools for hydrologists and water resources engineers. However, there is a critical gap between our knowledge of the appropriate model representation of physical processes at the point scale ...