Browsing Civil and Environmental Engineering by Title
Now showing items 796-815 of 866
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Study of the Anaerobic Methane Oxidation Coupled to Nitrate Denitrification
(University of Waterloo, 2014-01-08)Methane can be a potentially inexpensive, widely available electron donor for biological denitrification of wastewater, landfill leachate or drinking water, while no studies have clearly shown nitrate reduction to nitrogen ... -
Study of the effect of lateral inhomogeneities on the propagation of Rayleigh waves in an elastic medium
(University of Waterloo, 2006)The use of geophysical testing methods has considerable potential to be a cost effective and accurate technique to assess near-surface soil conditions. Multi channel analysis of surface waves (MASW) test is a geophysical ... -
A Study on Optimizing Infrared Heating Technology for Asphalt Pavement Maintenance and Rehabilitation
(University of Waterloo, 2019-10-24)In Canada especially, cracking and potholes on asphalt concrete pavements is a continuous problem requiring constant repairs. With the increased expansion and use of asphalt pavement infrastructure, combined with more ... -
A Study on Vibration Isolation in a Wind Turbine Subjected to Wind and Seismic Loading
(University of Waterloo, 2011-08-30)The primary loading on wind turbines is in the lateral direction and is of a stochastic nature, due to wind and seismic forces. As turbines grow larger, they experience proportionally larger lateral forces. Large forces ... -
Super-fine Powdered Activated Carbon for the Removal of Microcystin-LR from Drinking Water
(University of Waterloo, 2021-11-24)Harmful algal blooms are considered threats to drinking water quality. During drinking water treatment, suspended and dissolved materials must be removed and treated, and in the case of cyanobacteria, these are intact cells ... -
Surface Water Quality Modelling Considering Riparian Wetlands
(University of Waterloo, 2009-02-18)Riparian wetlands are believed to play an important role in mitigating non-point source pol- lution, acting as physical and biochemical buffers between diffuse pollution sources and receiving waters. Many studies examined ... -
Sustainable Alternative Materials in Unbound Granular Layers of Pavement Structures
(University of Waterloo, 2017-05-02)In Part 1 of this thesis, reclaimed cement concrete (commonly referred to as recycled concrete aggregate or RCA) and reclaimed asphalt pavement (RAP) are investigated as potential alternative construction materials for ... -
Sustainable Drinking Water Treatment for Small Communities Using Multistage Slow Sand Filtration
(University of Waterloo, 2005)Slow sand filtration is a proven and sustainable technology for drinking water treatment in small communities. The process, however, is sensitive to lower water temperatures that can lead to decreased biological treatment, ... -
Sustainable Municipal Water and Wastewater Management Using System Dynamics
(University of Waterloo, 2011-11-24)The overall goal of this research is to develop an integrated system dynamics framework for sustainable management of municipal water and wastewater systems. Canadian municipalities have traditionally relied on grants ... -
Syntrophic interactions between anode-respiring bacteria and non-anode-respiring bacteria in microbial electrochemical cells
(University of Waterloo, 2015-10-19)Microbial electrochemical cells (MECs), a promising technology for recovering value-added products from waste biomass and wastewater, require syntrophic interactions between anode-respiring bacteria (ARB) and non-ARB for ... -
Technical and Economic Assessment of Ground Source Heat Pump Systems (GSHPs) in Ontario
(University of Waterloo, 2017-08-28)Ground Source Heat Pump Systems (GSHPs) are one of the most promising clean and low-carbon source of geothermal renewable energy technologies for heating, ventilation and cooling of homes. Geothermal heat pump (GHP) ... -
Technical, Economic and Environmental Evaluation of Warm Mix Asphalt and Coloured Asphalt for Usage in Canada
(University of Waterloo, 2016-12-15)Transportation services play an important role in the Canadian economy, and social activities as well as Canada's competitiveness in the global economy. As one of the most valuable systems of transportation in Canada, 90 ... -
Temporal and spatial hydrodynamic variability in a gravel-bed river:measurement, characterisation, and significance for spawning salmonids
(University of Waterloo, 2011-06-15)The spatial and temporal flow field characteristics of a gravel-bed river supporting a robust rainbow trout (Onchorhynchus mykiss) and brown trout (Salmo trutta) fishery were studied in high resolution in attempts to ... -
Temporal Disaggregation of Daily Precipitation Data in a Changing Climate
(University of Waterloo, 2006)Models for spatially interpolating hourly precipitation data and temporally disaggregating daily precipitation to hourly data are developed for application to multisite scenarios at the watershed scale. The intent is ... -
Tensile-Flexural Behaviour of Carbon-Fibre Reinforced Polymer (CFRP) Prestressing Tendons Subjected to Harped Profiles
(University of Waterloo, 2016-09-15)External post-tensioning can provide an effective structural reinforcement system for the design of new concrete structures and for the strengthening of existing structures. In most cases, the structural effectiveness of ... -
Testing and Fretting Fatigue Analysis of Bridge Stay Cable Wires at Saddle Supports
(University of Waterloo, 2022-09-26)High-strength steel cables are one of the principal components of cable-stayed bridges. In these structures, the cables transfer the gravitational loads at the deck to the bridge tower structures or “pylons”. Reliable ... -
Testing of Innovative Pipe Renewal Liners for Renovation of Potable Water Distribution Pipelines
(University of Waterloo, 2017-12-19)Trenchless renovation has been in operation since the 1970’s in North America and the United Kingdom. However, it has not been widely accepted due to cost effectiveness concerns. Many Canadian cities are faced with the ... -
Tests on Concrete Beams with GFRP Flexural and Shear Reinforcements & Analysis Method for Indeterminate Strut-and-Tie Models with Brittle Reinforcements
(University of Waterloo, 2014-12-18)This thesis is a summary of research on the use of glass fibre reinforced polymer (GFRP) bars and stirrups as internal reinforcement for concrete beams. Fibre reinforced polymer bars are geometrically similar to conventional ... -
Tests on GFRP Reinforced Concrete Knee-Joints Subjected to Negative Moments
(University of Waterloo, 2017-08-22)The use of glass-fibre reinforced polymers as main reinforcement in concrete structures has become an appealing option for structures in aggressive environments. Concrete knee-joints are joints where the beam and column ... -
Three Dimensional Digital Image Correlation for Dynamic Measurements
(University of Waterloo, 2019-01-25)Structural inspections have traditionally been completed by inspectors using simple tools to determine the health of a structure. The limitations using these techniques led to the development of quantitative sensors such ...