Search
Skip to Search Results- 4Water quality
- 3Dissolved oxygen
- 2Suspended solids
- 1Air/oxygen injection
- 1Athabasca River
- 1Athabasca river
- 1Adamowicz, Vic (Resource Economics and Environmental Sociology)
- 1Chalaturnyk, Rick (Geotechnical Engineeing)
- 1Hauer, Grant (Resource Economics and Environmental Sociology)
- 1McEachern, Preston (Civil and Environmental Engineering)
- 1Proctor, Heather (Biological Science)
- 1Shotyk, William (Renewable resources)
-
Fall 2012
The problem of low dissolved oxygen (DO) level has been found to be widespread in ice-covered or polluted rivers. This thesis is targeted at providing some fundamental studies on the remediation measure of injecting air/oxygen via existing effluent diffusers to increase river’s DO level, with two...
-
Assessing Spatial and Temporal Variation in Source Water Quality and Drinking Water Treatability Across a Gradient of Forest Harvest on Vancouver Island, BC
DownloadFall 2021
On Canada’s Pacific Coast, forestry is integral to society. Although economically important, harvesting practices may alter source waters that originate in forested watersheds through changes in suspended solids (SS) and dissolved organic matter (DOM). Each of these metrics has the potential to...
-
Spring 2014
This thesis documents the research undertaken to develop and assess modeling and monitoring tools to improve the water quality management in the Athabasca River, Alberta. The Upper Athabasca River (UAR) has experienced dissolved oxygen (DO) sags, which may affect the aquatic ecosystem. A water...
-
Diversity of wetland non-biting midges (Diptera: Chironomidae) and their responses to environmental factors in Alberta
DownloadSpring 2016
Wetlands provide a wide range of services, including improving water quality, providing habitats for wildlife, and storing floodwaters. In Alberta, wetlands cover about 21% of the landscape of the province. In Alberta, as elsewhere, wetlands have suffered from human activities and many have...
-
Fall 2015
Over the past decades, the increased volume of oil-field waste disposal and the recognition of the environment and health impacts from conventional and traditional disposal approaches have led to an increased demand for solution-mined salt caverns as an effective method for permanent abandonment...
-
Spatial variations of total and dissolved trace elements and their distributions amongst major colloidal forms along and across the Lower Athabasca River
DownloadFall 2020
The Athabasca River (AR) is the longest river in Alberta with a wide variety of natural and potential anthropogenic inputs. The purpose of this study was to quantify the spatial variation of trace element (TE) concentrations and forms in this aquatic system. Water samples were gathered along a...
-
The Effect of Source Water Quality on Water Treatment Costs: Evaluation of Source Water Protection Practices
DownloadSpring 2020
A few high-profile forest fires and floods in recent history has exposed the vulnerability of Canadians’ drinking water supply systems to extreme events and their long-lasting consequences. Elevated levels of contaminants in surface waters can force downstream communities to engage in costly...
-
Fall 2012
An ecological risk assessment for the Athabasca River was done. We did a review of literature pertaining to ecological risk assessment in the Athabasca River. The focus of the risk assessment was on the ecological impact of low dissolved oxygen (DO), because mainly ice-cover and pulp mill...