Browsing Civil and Environmental Engineering by Title
Now showing items 107-126 of 881
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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 ... -
CFRP strengthening of RC beams with corroded lap spliced steel bars
(University of Waterloo, 2011-08-30)Corrosion is the number one deterioration mechanism that decreases the service life of the concrete structures. Many structures in severe environments have experienced an unacceptable loss in serviceability earlier than ... -
Changes in flood events inferred from centennial length streamflow data records
(Elsevier, 2018-11-01)This research examines ways that climate change may alter the risk of flooding in cold regions focusing on changes in the flood regimes and changes and shifts in the dominant flood generating processes at 27 natural ... -
The changing influence of permafrost on peatlands hydrology
(University of Waterloo, 2021-01-20)Hydrology and hydrological modelling in the far north is understudied, and many gaps exist in the current understanding and representation of northern thermal and hydrological systems. A combination of fieldwork and modelling ... -
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 ... -
Characterization and Modeling of Selected Antiandrogens and Pharmaceuticals in Highly Impacted Reaches of Grand River Watershed in Southern Ontario
(University of Waterloo, 2013-10-01)Endocrine disruption and high occurrences of intersex have been observed in wild fish associated with wastewater treatment plant (WWTP) effluents in the urbanized reaches of the Grand River watershed located in southern ... -
Characterization and Tracking of Contaminants in Oil Tar Sediments and Assessment of Water Treatment Technologies for Their Removal
(University of Waterloo, 2011-04-25)Between 1920 and 1950 an oil gasification plant operated on a property adjacent to Kettle Creek about 0.2 km from the mouth of Port Stanley harbour on Lake Erie, Ontario, Canada. Oil tar wastes from the gasification plant ... -
Characterization of acid phase anaerobic digestion of municipal sludges to improve biological nutrient removal processes
(University of Waterloo, 2017-10-24)Enhanced biological phosphorus removal (EBPR) can improve the balance sheet for waste water treatment plants. However, for phosphate accumulating organisms (PAOs) to work efficiently, there needs to be a readily biodegradable ... -
Characterization of Anaerobic Membrane Bioreactors (AnMBR) Treating Municipal Wastewater
(University of Waterloo, 2015-02-18)The study investigated the impact of solids retention time (SRT), hydraulic retention time (HRT) and the addition of FeCl3 on bioprocess and membrane performance of anaerobic membrane bioreactor (AnMBR) treating authentic ... -
Characterization of anaerobic membrane digesters for stabilization of waste activated sludge
(University of Waterloo, 2010-10-12)Anaerobic membrane bioreactors may provide a sustainable technological solution for digestion of waste activated sludge due to their capacity to achieve substantial volatile solids (VS) destruction and positive energy ... -
Characterization of Fouling of Tertiary Membranes Treating Secondary Effluent of Domestic Wastewater
(University of Waterloo, 2018-08-20)The use of membranes for tertiary treatment of wastewater has become more frequent over the years, especially with increasing interest in water reuse. Fouling prevents wider application of this technology as it creates ... -
Characterization of Fresh and Hardened Properties of 3D Printable Cementitious Materials Produced with Ground-Granulated Blast-Furnace Slag
(University of Waterloo, 2021-09-24)Application of additive manufacturing technology to promote the digital construction practice in civil engineering has been gaining momentum, especially during the past 5 years. To this end, three dimensionalconcrete ... -
Characterization of Pretreatment Impacts on Properties of Waste Activated Sludge and Digestibility
(University of Waterloo, 2010-02-17)Technologies for pretreatment of waste activated sludges (WAS) prior to digestion are of increasing interest to wastewater treatment utilities because of their promise for improving sludge digestibility and reducing the ... -
Characterization of Tertiary Membrane Fouling in Cold Climates
(University of Waterloo, 2022-01-13)Cold climates have limited the application of membrane technologies in tertiary treatment by affecting both secondary biological and tertiary membrane processes. There is a need to develop a fundamental understanding of ... -
Characterizing sediment transport and stability in remote river systems
(University of Waterloo, 2020-05-26)Canada is a large country with vast networks of linear infrastructure, such as roads and pipelines, that unavoidably intersect with waterways. Engineers must be able to characterize geomorphologic processes and channel ... -
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 ... -
Classification of Construction Projects
(World Academy of Science, 2015-07-01)In order to address construction project requirements and specifications, scholars and practitioners need to establish taxonomy according to a scheme that best fits their need. While existing characterization methods are ... -
Climate Change Projection and Time-varying Multi-dimensional Risk Analysis
(University of Waterloo, 2016-09-20)In recent decades, population growth and global warming consequent to greenhouse gas emissions because of human activities, has changed the atmospheric composition leading to intensifying extreme climate phenomena and ... -
Climate impacts on hydrometric variables in the Mackenzie River Basin
(University of Waterloo, 2008-01-25)The research described in this thesis examines how the hydrologic cycle is affected by climate changes in the Mackenzie River Basin (MRB) in northern Canada. The study focuses on five hydro-meteorological variables; runoff, ... -
Closed Loop Geothermal System Design
(University of Waterloo, 2022-06-17)In contrast to other renewable sources (e.g., wind and solar) that may only be intermittently available throughout a day or year, geothermal resources provide a carbon-free and sustainable source of energy for base-load ...