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- 1Chatterjee, Reeshav
- 1Guha Thakurta, Subhayan
- 1Hosseini, Amir
- 1Kemps, Jeffrey A L
- 1Mamun, Md. Abdullaha-Al-
- 2Interactions
- 1AFM
- 1Atomic force
- 1Atomic force microscopy
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An Electrochemical Impedance Spectroscopic Diagnostic Device for Characterization of Liquid-Liquid Systems and Phase Separation Detection in Emulsions
DownloadFall 2013
Rapid characterization of complex fluids, especially sensing emulsion stability, is crucial for many industrial applications, ranging from pharmaceutical industry to petroleum production. Electrochemical impedance spectroscopy (EIS) is a powerful tool for electrical characterization of such...
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Characterization of the dissolved organic matter in steam assisted gravity drainage boiler blow-down water
DownloadFall 2012
The presence of high concentrations of dissolved organic matter (DOM) and total dissolved solids (TDS) in the boiler blow-down water (BBD) causes severe equipment fouling during the SAGD operation. For effective BBD management, a detailed understanding of the BBD chemistry is important. In this...
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Colloidal Fouling of Salt Rejecting Nanofiltration Membranes: Transient Electrokinetic Model and Experimental Study
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Membrane separation processes are widely used for separation of colloids, macromolecules, organic and ions. Among different processes, nanofiltration (NF) is being increasingly used for removing multiple molecular weight and size solutes using a single membrane. Fouling is a commonly encountered...
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Fall 2009
This dissertation investigates the influence of surface heterogeneities on colloid deposition. First, deposition of colloidal particles on a nanofiltration membrane during cross flow membrane filtration was studied under different operating pressures and solution chemistries. An atomic force...
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Fall 2011
AC Dielectrophoresis, the motion of dielectric colloidal particles in the presence of an inhomogeneous AC electric field, has been utilized in this work as a mechanism for preventing channel wall fouling due to particle deposition for a multi-component colloidal system. Both attractive and...
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Spring 2011
In this thesis, measurement and analysis of colloidal forces between an atomic force microscope (AFM) probe and a topographically patterned substrate are reported. The energy between the patterned substrate and a smooth flat plate was characterized mathematically using Surface Element Integration...
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Spring 2010
Heterogeneity of surfaces is often included in mathematical treatments of colloid transport and deposition as an afterthought, if at all. Most previous models of colloid transport and deposition have employed idealizations and simplifications such as assuming smooth collector surfaces with...
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Transport and deposition of particles onto homogeneous and chemically heterogeneous porous media geometries
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Particle transport and deposition in porous media are central to a wide gamut of natural and engineering processes. In order to establish optimal macroscopic performance, it is essential to understand the microscopic colloid transport fundamentals that ultimately manifest at the macroscopic...