Browsing Civil and Environmental Engineering by Title
Now showing items 419-438 of 865
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Identification and Estimation of Greenhouse Gas Reduction Opportunities through the Implementation of CAES in Canada
(University of Waterloo, 2017-10-25)To reduce greenhouse gas emissions, federal and provincial initiatives have pushed for increased renewable energy penetration on Canadian electric grids. However, renewable power sources such as wind and solar power require ... -
Identification and Treatment of Critical Contaminants for Managed Aquifer Recharge (MAR) with Reclaimed Water
(University of Waterloo, 2015-01-22)Residential and employment growth places great pressure on well-based potable water supply and stream-based wastewater treatment systems, which are common in many areas of Canada. To ensure that increased potable water ... -
IDF Trends Study With MSC Weather Data Using Regression Analysis in Ontario
(University of Waterloo, 2014-09-26)The Ministry of Transportation (MTO) uses Intensity Duration Frequency (IDF) information that was developed with Environment Canada weather information up to 1989 for various infrastructure designs. The IDF curves needed ... -
Impact Assessment of Construction Supply Chain Risk Changes on Project Time and Cost
(University of Waterloo, 2017-09-11)The supply chain plays a key role in the construction industry. The importance of the Construction Supply Chain (CSC) is not less than that of the onsite construction phases. There are many risk factors that influence ... -
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 ... -
Impact of Biofilter Backwashing on the Biofiltration / Ultrafiltration Process
(University of Waterloo, 2015-09-01)The use of ultrafiltration membrane technology for drinking water treatment has seen a marked increase in the past few decades, however, membrane fouling remains the top technological hurdle in the way of its widespread ... -
Impact of Biological Nutrient Removal Process Operating and Design Conditions on the Removal of Micropollutants from Wastewater
(University of Waterloo, 2015-02-11)The efficacy of three different wastewater treatment configurations, conventional activated sludge (CAS), nitrifying activated sludge (NAS) and biological nutrient removal (BNR) for removal of selected micropollutants from ... -
Impact of Design and Operational Parameters on Rapid, Deep Bed Biological Filtration of Drinking Water
(University of Waterloo, 2011-01-21)A series of pilot and full-scale experiments were carried out at the Mannheim Water Treatment Plant in Kitchener, Ontario to examine the impact of backwash technique, filter media characteristics, and combinations thereof ... -
Impact of Free Transit Passes on Youth Travel Behaviour
(University of Waterloo, 2017-08-24)Young adults are often restricted in their activity participation and mobility by parental constraints and driving age restrictions. Public transit can, however, be a viable option for youth to accomplish their trips ... -
IMPACT OF FREEZE-THAW AND DE-ICER ON THE STRUCTURAL AND FUNCTIONAL PERFORMANCE OF CANADIAN AIRPORT ASPHALT MATERIALS
(University of Waterloo, 2021-05-03)Asphalt pavement is widely used on roadways and airside pavement across Canada. Despite various benefits including smooth driving experience, rapid construction, as well as the high recyclability of asphalt pavement, common ... -
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 ... -
The Impact of NOD Reaction Kinetics on Treatment Efficiency
(University of Waterloo, 2007-05-18)In situ chemical oxidation (ISCO) with permanganate is a remedial technology that has been prevalent over the last decade. Permanganate is injected into the subsurface to oxidized reduced organic contaminants with the ... -
Impact of Operational and Design Parameters on Natural Organic Matter Removal and its Correlation with NDMA Precursor Removal or Formation during Biofiltration in Drinking Water Treatment
(University of Waterloo, 2019-05-21)NOM is a complex mixture of organic compounds that are present in all natural waters and is mainly originating from plant and aquatic organism degradation products. Therefore, the specific composition of NOM is site-specific. ... -
Impact of Pedestrian Volumes on the Operational Performance of Modern Roundabouts
(University of Waterloo, 2011-08-29)Modern roundabouts are increasingly being considered as a preferred intersection design within urban street networks in North America due, in large part, to the increased safety provided by roundabout. In the last decade, ... -
The Impact of Portland Cement on the Performance of Cold In-Place Recycled Pavement
(University of Waterloo, 2022-12-06)In place recycling of existing asphalt pavement is a rehabilitation strategy, which the Ministry of Transportation Ontario (MTO) adopted decades ago. Asphalt emulsion is the most common type of bitumen stabilizing agent ... -
Impact of Powdered Activated Carbon on Anaerobic Membrane Bioreactors Treating Municipal Wastewater under Psychrophilic Conditions
(University of Waterloo, 2019-05-06)The anaerobic membrane bioreactor (AnMBR) is an emerging technology, which has the potential for anaerobic digestion of wastewaters (WW) at high efficiency while generating biogas as a by-product (Harb et al., 2017). One ... -
Impact of Spatial Cognitive Abilities on the Effectiveness of Augmented Reality in Construction and Fabrication
(University of Waterloo, 2018-09-04)Modular construction has emerged to help address the challenges posed to the construction industry by stagnant productivity rates and a shortage of skilled labor as it allows for greater automation and for work to be ... -
Impact of Winter Road Conditions on Highway Speed and Volume
(University of Waterloo, 2014-01-29)Several past studies have attempted to quantify the impact of winter weather conditions on highway mobility in terms of traffic volume, speed, and capacity. While consistent in their general findings, these studies have ... -
Impacts of Climate Change on Canadian Airport Pavements
(University of Waterloo, 2019-12-20)Greenhouse gasses (GHG) emitted by the burning of fossil fuels and supplementary anthropogenic activities are on the rise since the industrial revolution. The world is becoming warmer and more polluted with such gases, ... -
Impacts of Hydromodification and Sediment Supply Alterations on Bedload Transport and Bed Morphology in Urbanizing Gravel-bed Rivers
(University of Waterloo, 2017-08-18)Urbanization is known to change the hydrologic and sediment supply regimes of rivers, causing more frequent, flashier flood events (hydromodification) and a reduction and redistribution of sediment sources. Presently, the ...