Browsing Theses by Supervisor "Parker, Wayne"
Now showing items 1-16 of 16
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Benchmarking the Sustainability of Sludge Handling Systems in Small Wastewater Treatment Plants in Ontario
(University of Waterloo, 2018-08-20)This project quantitatively benchmarked all aspects of sludge handling in a cross-section of small wastewater treatment plants across Ontario. Using plant operational data and on-site measurements, a variety of sustainability ... -
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 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 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 ... -
Comparison of the Impacts of Thermal Pretreatment on Waste Activated Sludge using Aerobic and Anaerobic Digestion
(University of Waterloo, 2017-08-31)Thermal pretreatment systems are typically employed to improve waste-activated sludge (WAS) dewaterability and to treat sludge prior to anaerobic digestion. It is important to understand how WAS properties are affected ... -
Effect of Thermal Pretreatment on Digestibility of Thickened Waste Activated Sludge and Primary Sludge in Two-stage Anaerobic Digestion
(University of Waterloo, 2015-12-15)This study investigated the effect of high pressure thermal (HPTH) pretreatment on the biodegradability of a mixture of primary sludge (PS) and thickened waste activated sludge (TWAS) in single-and two-stage continues ... -
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 ... -
Impacts of Psychrophilic Conditions on Anaerobic Membrane Bioreactors Treating Municipal Wastewater
(University of Waterloo, 2019-05-27)Three 5 L AnMBRs that incorporated submerged ZeeWeed® hollow fibre PVDF membranes with a nominal pore size of 0.04 µm and a nominal membrane surface area of 0.047 m2 were employed. The AnMBRs were operated at a solids ... -
Investigation of the Impact of Mixing Intensity on Dissolved Oxygen Half Velocity Constants in a Sidestream Deammonification Environment
(University of Waterloo, 2017-12-18)The liquid waste (centrate) from the dewatering stage in the solids treatment stream (sidestream) of a wastewater treatment plant is typically rich in ammonium. If this centrate is recycled to the wastewater treatment ... -
Investigation of the Performance of an Anaerobic Membrane Bioreactor in the Treatment of Mixed Municipal Sludge Under Ambient, Mesophilic and Thermophilic Operating Conditions
(University of Waterloo, 2016-02-18)Anaerobic membrane bioreactors (AnMBRs) may provide a sustainable treatment technology for the digestion of mixed municipal sludge based on their ability to achieve elevated volatile solids (VS) conversion and a net ... -
Leveraging Deep Learning and Advanced Statistical Methods for Investigating the Fate and Transport of Microplastics in a Waste Water Treatment Plant
(University of Waterloo, 2023-07-26)Microplastics (MPs), defined as plastic particulates smaller than 5mm, pose significant environmental concerns due to their widespread distribution, adverse ecological impacts, and potential human health implications. The ... -
Modeling the Transportation of Select Trace Organic Contaminants from Source to Ecosystem in the Grand River
(University of Waterloo, 2021-06-02)Trace organic contaminants (TOrC) have been observed in waters downstream of wastewater treatment plants (WWTP) in the Grand River in southern Ontario, Canada. These contaminants have been correlated with adverse impacts ... -
Phosphorus Removal and Recovery from Wastewater using Sorbent Technologies
(University of Waterloo, 2018-08-03)Phosphorus (P) is an essential nutrient in fertilizers that are necessary for food production. Wastewater may represent a renewable source of nutrients if methods for recovering P from dilute wastewater streams can be ... -
A Pilot Study Regarding the Use of Food Waste Grinders in a Multi-Unit Residential Building
(University of Waterloo, 2022-07-25)This study evaluated the impact of food waste grinders (FWGs) in multi-unit residential buildings (MURBs) that also had access to green bins (GBs) on solid waste and wastewater generation. A 15-month technical sampling ... -
Quantification of PFAS Fate in Sludge Handling Systems
(University of Waterloo, 2023-08-14)Per- and polyfluoroalkyl substances (PFAS) have been detected in biosolids, raising concerns regarding their potential leaching into soils, groundwater, and plants when biosolids are land applied. In this study, the fate ... -
Simultaneous nitrification, denitrification, and phosphorus removal at low temperatures
(University of Waterloo, 2022-05-10)Simultaneous nitrification, denitrification, and phosphorus removal (SNDPR) has been demonstrated to be a promising technology for carbon, nitrogen, and phosphorus removal. However, SNDPR has not been fully studied at low ...