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Skip to Search Results- 2Wilkins, Nicholas S.
- 1Alam, Monisha
- 1Alizadeh, Saeid
- 1An, Zhexuan
- 1Awad, Rania
- 1Backs, Jonathan A.J.
- 25Department of Chemical and Materials Engineering
- 20Department of Civil and Environmental Engineering
- 5Department of Biological Sciences
- 3Department of Renewable Resources
- 2Department of Chemistry
- 2Department of Mechanical Engineering
- 8Hashisho, Zaher (Civil and Environmental Engineering)
- 4Rajendran, Arvind (Chemical and Materials Engineering)
- 2Chang, Scott (Renewable Resources)
- 2Foote, Lee (Renewable Resources)
- 2Kuznicki, Steven (Chemical and Materials Engineering)
- 2Mohamed Gamal El-Din (Civil and Environmental Engineering)
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Fall 2009
In this study, we describe the use of different silica materials to separate vanadium compounds from Asphaltenes. We used high performance flash chromatography separation method to separate asphaltenes at different solvent strengths on sea sand. The separation conditions were optimized for flow...
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Spring 2023
The increasing abundance of per- and polyfluoroalkyl substances (PFAS) has attracted growing interest due to concern about the potential hazards to public health and ecosystems. Due to PFAS toxicity, mobility, environmental persistence, and strong bioaccumulation, they are being further...
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Conserving cougars in a rural landscape: habitat requirements and local tolerance in west-central Alberta
DownloadSpring 2011
Maintaining large carnivores in human-dominated landscapes poses a significant conservation challenge. Extirpation is common because of habitat loss or direct persecution. I studied cougar habitat selection and human perception of cougars in west-central Alberta to better understand...
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Development of a hybrid wheat straw adsorption and microfiltration system for oily wastewater treatment
DownloadFall 2020
Effective, economical, and sustainable treatment technologies are highly desirable for treating oily wastewater generated from various industries as well as municipal and commercial establishments. The performance of traditional polymeric membranes is largely constrained by their high fouling...
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Development of dynamic column breakthrough for multicomponent adsorption equilibrium and diffusion
DownloadFall 2022
Pressure and temperature swing adsorption processes are increasingly being designed and optimized computationally. The reliability of these predictions are highly dependent on the quality of the experimental equilibrium and kinetic data used in these simulations. Consistent experimental...
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Effect of adsorbate’s polarity, steric hindrance, aromaticity, and boiling point on competitive adsorption in a multi-staged countercurrent fluidized bed reactor using activated carbon and zeolite
DownloadFall 2022
Understanding the multi-component adsorption of volatile organic compounds (VOCs) is of essential importance for real-world engineering applications. Various properties of VOCs can affect their competitive adsorption when there is a mixture of these compounds in the process stream. This thesis...
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Effect of Desorption Purge Gas Oxygen Impurity on Heel Formation During Regeneration of Beaded Activated Carbon Saturated with Organic Vapors
DownloadFall 2017
Irreversible adsorption or heel formation during cyclic adsorption/regeneration of high molecular weight volatile organic compounds (VOCs) onto activated carbon decreases its adsorption capacity and lifetime. The effect of regeneration purge gas oxygen impurity on activated carbon performance,...
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Effect of Purge Gas Flow Rate and Oxygen Impurity on Heel build-up and Prediction of Heel build-up Using Machine Learning
DownloadFall 2021
Heel buildup, i.e., the accumulation of non-desorbed/non-desorbable adsorbates and their by-products on an adsorbent, during cyclic adsorption/regeneration of volatile organic compounds (VOCs) onto activated carbon decreases its adsorption capacity and lifetime. In this this study, the effect of...
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Effect of Surface Oxygen Groups on Irreversible Adsorption of Volatile Organic Compounds on Beaded Activated Carbon
DownloadSpring 2017
Adsorption by activated carbons is a widely used method for controlling emission of volatile organic compounds (VOCs). However, accumulation of adsorbates and/or regeneration by-products (heel buildup) during cyclic process is a common challenge in this process. Irreversible adsorption restricts...