Search
Skip to Search Results- 2Wilkins, Nicholas S.
- 1Alizadeh, Saeid
- 1Fotovati, Maryam
- 1Gholidoust Saraidashti, Abedeh
- 1Ifill, Roy O.
- 1Jahandar Lashaki, Masoud
-
Fall 2009
The work presented in this dissertation provides a novel technique of manipulation of colloidal entities during membrane filtration based on an AC electrokinetic phenomenon called dielectrophoresis. First, the influence of dielectrophoretic (DEP) forces created on a membrane surface to levitate...
-
Spring 2011
A major challenge to any “solvent-based” bitumen extraction technology is the removal of suspended fine solids from the hydrocarbon medium (i.e. diluted bitumen). To address this problem, we examined how colloidal solids could be made to aggregate in a hydrocarbon medium and thus be separated by...
-
Spring 2010
Poor settling of solids increases land requirement for tailings containment and imposes severe constraints on the water balance. Consequent to these considerations, the alternating current electrocoagulation (AC/EC) technique emerged as a candidate for enhancing the settling behaviour of...
-
Fall 2017
Anthropogenic carbon dioxide emissions are driving climate change. The largest sources of emitted carbon dioxide are coal and fossil fuel power plants. One proposed solution to mitigate emissions is to capture carbon dioxide from fossil fuel power plants and store it underground. This is the...
-
Fall 2017
Gholidoust Saraidashti, Abedeh
CO2 separation from flue gas streams is an essential issue as it is the main anthropogenic greenhouse gas contributing to global warming. Commercially used methods for CO2 capture includes absorption in liquid amine solutions which has its own drawbacks such as pipeline corrosion, oxidative...
-
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...
-
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...
-
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...
-
Long-term Performance of Activated Carbon in Cyclic Adsorption/Regeneration of VOCs: Experimental and Modeling Investigation of Fixed Bed Adsorber
DownloadSpring 2022
Activated carbon (AC) has attracted tremendous interest in adsorption-based air treatment. Nonetheless, a major challenge associated with the use of ACs is the decline in adsorption capacity with time due to heel build-up (i.e., accumulation of non-desorbed species). Designing a reliable...
-
Preparation of Activated Carbon from Oil Sands Coke by Chemical and Physical Activation Techniques
DownloadSpring 2012
Oil sands coke is a by-product resulting from the upgrading of heavy crude bitumen to light synthetic oil. This research investigates the preparation of activated carbon from oil sands cokes by using both chemical activation and physical activation techniques. Chemical activation was completed...