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Spring 2016

Chen, Yijun

The study of methanogenesis in wastewater biofilms and various aggregated methanogenic environmental samples with high spatial resolution can be achieved by using microbiosensor techniques. In this study, the fabrication of a microbiosensor for methane detection was studied. This microbiosensor...

Spring 2020

Coimbra Paniagua, Luis Eduardo

The steam alternating solvent (SAS) process involves multiple cycles of steam and solvent (e.g. propane) being injected into a horizontal well pair to produce the heavy oil. Companies are interested in these solvent-based methods, as they entail a smaller environmental footprint with reduced...

Spring 2022

Prasad, Amritha Jaya

Low water activity (aw) foods have been associated with several foodborne outbreaks and recalls. Eradication of foodborne microorganisms like Salmonella and Escherichia coli from low aw foods is challenging, as they are resistant to conventional decontamination practices. High intensity light...

Fall 2021

Hunyinbo, Seyide, O

The warm vaporized solvent injection process has been proposed as a more environmentally friendly alternative to steam-based technologies for bitumen recovery. The process typically involves injecting heated solvent vapor into a horizontal injector; the solvent condenses and dissolves into...

Spring 2017

Hassanpourfard, Mahtab

One of the central puzzles concerning the interaction of low Reynolds number (Re<<1) fluid transport with bacterial biomass is the formation of filamentous structures called bacterial streamer. Bacterial streamers can be tethered at one or both ends to solid surfaces, while the rest of the...

2014

Howell, P. Lynne, Klassen, John S., Wolfram, Francis, Robinson, Howard, Kitova, Elena N., Codée, Jeroen D. C., Walvoort, Marthe T. C.

Pseudomonas aeruginosa is an opportunistic pathogen that forms chronic biofilm infections in the lungs of cystic fibrosis patients. A major component of the biofilm during these infections is the exopolysaccharide alginate, which is synthesized at the inner membrane as a homopolymer of 1–4-linked...

Fall 2011

Okafor, Sabinus

The process of scale-up and rational optimization of biofilm processes for effective wastewater treatment and reuse require better understanding of the biokinetic behavior of microorganisms in the biofilms. At present, no fast and accurate methods exist for determining kinetic parameters for...

Fall 2011

Ren, Shujie

Microelectrodes can be used for profiling environmental biofilms. Currently there is no sulfate microelectrode available for studying sulfate reduction in biofilms. In this study, a sulfate microelectrode was fabricated and tested in measurement of environmental biofilms for the first time. The...

Fall 2015

Marciales, Andrea

Heavy-oil and bitumen recovery requires high recovery factors to offset the extreme high cost of the process. Attention has been given to solvent injection for this purpose and it has been observed that high recoveries are achievable when combined with steam injection. Heavier (“liquid”) solvents...

Spring 2024

Dhaliwal, Harleen Kaur

Repeated isolation of Salmonella from the dry and wet environments of the food industry poses a significant concern to human health. It is crucial to understand the influence of the various environmental conditions on Salmonella’s survival. The overall objective of this research was to evaluate...