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Anaerobic Ammonia Oxidation (ANAMMOX) processes for Ammonium-rich Lagoon Supernatant Treatment
DownloadFall 2020
Ammonium-N and phosphate-P-rich anaerobic digester sludge liquor recovered during sewage sludge dewatering contributes more than 30% of the total nitrogen loading when returned to the municipal wastewater plant. Hence, side stream treatment could offer an economic alternative given its relatively...
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Fluorescence-based methods of virus estimation in wastewater: Current challenges and future perspectives
DownloadSpring 2021
Increasing freshwater scarcity drives humankind to look for alternative sources of potable water as well as water for agricultural and industrial applications. It is estimated that by 2025 half of the world population will be living in water-scarce regions. This pressure has forced governments to...
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Interactions between Arcobacter butzleri and free-living protozoa in the context of sewage & wastewater treatment
DownloadSpring 2021
Water reuse is increasingly becoming implemented as a sustainable water management strategy in areas around the world facing freshwater shortages and nutrient discharge limits. However, there are a host of biological hazards that must be assessed prior to and following the introduction of water...
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Legionella and free-living amoebae interactions: an ecological perspective of drinking water safety and controlling legionellosis
DownloadSpring 2021
Legionnaires’ disease (LD) outbreaks have been a growing concern for public health as well as for the water industry and building management. The number of outbreaks has significantly increased over the last decades worldwide, especially in the United States and Europe. This disease is mainly...
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Potential Microbial Water Quality Impacts Resulting from Main Breaks in Edmonton, Alberta: A Quantitative Microbial Risk Assessment
DownloadFall 2018
Few studies, and even fewer within Canada, have addressed the efficacy of water utility main break response and repair standard operating procedures (SOPs) for prevention of microbial contamination. To better understand such risks in the City of Edmonton, Alberta, ten main break events were...
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The impact of viable but non-culturable Legionella pneumophila on detection and disinfection: Searching for viability markers to aid in pathogen risk management
DownloadSpring 2018
The introduction of drinking water safety plans in Alberta has resulted in increased attention towards water-based, opportunistic pathogens like Legionella pneumophila, which grow in premise plumbing biofilms and cannot be controlled through drinking water treatment alone. Currently, there are...
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The Occurrence of Residual Biological and Chemical Hazards in Recovered Struvite from Blackwater
DownloadFall 2018
Phosphorus is an essential element in several industries such as agriculture and a requirement for growth. Dwindling phosphate rock sources thus requires the security of new phosphorus sources to maintain future populations. On the other hand, wastewater contains a considerable amount of...