Browsing Theses by Subject "drinking water treatment"
Now showing items 1-12 of 12
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Coupled chemically-assisted filtration (CCAF) approaches for increasing filter resilience and performance during drinking water treatment
(University of Waterloo, 2021-05-11)The paramount objective of drinking water treatment is the prevention of acute waterborne disease. Filtration remains a critical barrier for ensuring that Cryptosporidium spp. and Giardia are removed during drinking water ... -
The Critical Role of Chemical Pre-Treatment in Ensuring Cryptosporidium Removal by Filtration of High Quality Source Water
(University of Waterloo, 2019-05-01)Drinking water utilities reliant on surface water utilize chemically-assisted filtration (CAF) as a key barrier against the passage of protozoan pathogens, like Cryptosporidium spp. oocysts, to treated water. The goal of ... -
Drinking Water Treatment Technology Resilience for Management of Severely Deteriorated Water after Wildfire
(University of Waterloo, 2021-09-29)Severe wildland fire is occurring with increased frequency in many regions and can be potentially catastrophic for the provision of safe drinking water due to increasingly variable or deteriorated source quality. Deteriorated ... -
Evaluating expected microcystin removal at three Ontario drinking water treatment plants
(University of Waterloo, 2018-09-19)Cyanotoxins are a group of toxins produced by cyanobacteria that can be harmful to human health. Drinking water is a major pathway to exposure and therefore the presence of cyanobacteria and cyanotoxins in drinking water ... -
Evaluating the effects of strain selection on the attenuation of Bacillus subtilis spores through saturated porous media
(University of Waterloo, 2013-10-02)Increasingly stringent water quality regulations concerning microbiological parameters govern the use of groundwater resources that are vulnerable to mixing with surface waters. These drinking water sources are at higher ... -
Exploring Pretreatments for the Solar Water Disinfection (SODIS) Process
(University of Waterloo, 2008-08-27)The use of sunlight for water disinfection has been practiced since ancient times. Only in the last three decades has solar disinfection become widely recognized as a viable means of providing safe drinking water to the ... -
Investigating the Enhancement of Biological Filtration with Capping Material Designs and Nutrient Amendments
(University of Waterloo, 2015-09-30)Biologically active filters, or biological filters, remove particles and harness the metabolic capacity of bacteria attached to filtration media, in the form of a biofilm, to metabolize biodegradable organic matter (BOM). ... -
Operational Robustness of Drinking Water Treatment Plants with Respect to Turbidity Representing Normal, Severe and Unprecedented Weather Events
(University of Waterloo, 2022-06-16)Drinking water treatment plants (DWTPs) are required to supply safe drinking water continuously to the consumers to protect public health and sanitation. The adverse effects of climate change can influence raw water quality, ... -
Predicting the Removal of Micropollutants in Lake Ontario and Grand River using Ozonation
(University of Waterloo, 2019-01-15)Micropollutants occur at low concentrations (µg/L to ng/L), can have a range of environmental and health effects, and can enter surface water through run-off from fields and wastewater discharge. Surface water is used for ... -
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 ... -
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, ... -
The Use of Coagulation as a Pre-treatment to Ultra-filtration Membranes
(University of Waterloo, 2007-09-17)ABSTRACT With an increasing population density throughout the world and the current drive to provide fresh water to as many people as possible, innovative methods of providing safe drinking water are in very high demand. ...