Browsing Civil and Environmental Engineering by Title
Now showing items 114-133 of 881
-
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 ... -
A Cloud-Based Architecture for BIM as an Asset for Project Management
(University of Waterloo, 2019-08-12)After more than 30 years of research, better solutions continue to be sought for nuclear power plant decommissioning and radioactive waste management. As some approaches are interesting, improvements are still required in ... -
Coagulant addition for managing sediment-associated phosphorus bioavailability to prevent cyanobacterial blooms in drinking water reservoirs
(University of Waterloo, 2021-08-27)To ensure the uninterrupted supply of adequate amounts of drinking water, many utilities rely on reservoirs for raw (i.e., untreated) water storage prior to treatment. For example, reservoirs are integral to storing water ... -
Combined Strategic-Tactical Planning for Facility Rehabilitation Using System Dynamics and Optimization
(University of Waterloo, 2016-01-25)Rehabilitation programs are essential for efficiently managing large networks of infrastructure assets and sustaining their safety and operability. While numerous studies in the literature have focused on various aspects ... -
Comparative Assessment on Static O-D Synthesis
(University of Waterloo, 2022-08-02)Recognizing the benefits of data and the information it provides to travel demand is pertinent to network planning and design. Technological advances have led the ability to produce large quantities and types of data and ... -
Comparing Cold In-Place Recycling (CIR) and Cold In-Place Recycling with Expanded Asphalt Mixture (CIREAM)
(University of Waterloo, 2015-09-01)Cold Mix Asphalt (CMA) is used in several rehabilitation techniques, which uses 100% Reclaimed Asphalt Pavement (RAP), thus making it a sustainable product in the industry. Using CMA for rehabilitation decreases the energy ... -
Comparing the Safety and Mobility Benefits of Alternative Winter Road Maintenance Standards
(University of Waterloo, 2019-10-24)In countries like Canada, driving conditions can be significantly deteriorated by adverse winter weather conditions, such as ice and snow storms. To reduce the negative effects caused by inclement winter weather conditions, ... -
Comparison between Optimization and Heuristic Methods for Large-Scale Infrastructure Rehabilitation Programs
(University of Waterloo, 2012-09-26)Civil infrastructure systems are the foundation of economic growth and prosperity in all nations. In recent years, infrastructure rehabilitation has been a focus of attention in North America and around the world. A large ...