Role of Morphological Surface Heterogeneity in Deposition of Colloidal Particles onto Semi-Permeable Polymeric Membrane Surfaces
Introduction: Background and Rationale
Introduction: Objectives
Introduction: Common Applications of Membranes
Introduction: Membranes are Classified by Separation
Overview of Colloidal Fouling: Theoretical CMF Description
Overview of Colloidal Fouling: Theoretical CMF Cake Filtration (Fouling)
Overview of Colloidal Fouling: Real CMF Processes Affected by Non-Idealities
Experimental Materials and Methods: Crossflow Membrane Filtration (CMF) Setup
Experimental Materials and Methods: Membrane and Particle Characterization
Experimental Materials and Methods: Defining AFM Statistical Roughness Parameters
Experimental Materials and Methods: Membrane Roughness by Tapping Mode AFM
Experimental Materials and Methods: Membrane Zeta Potential
Experimental Materials and Methods: Particle Size and Shape
Experimental Materials and Methods: Particle Zeta Potential from EM Measurements
Correlating Roughness and Fouling: Same Conditions, but Different Flux Decline
Correlating Roughness and Fouling: Key Membrane Properties versus Flux Decline
Correlating Roughness and Fouling: Variable Physical/Chemical Operating Conditions
Proposing a Mechanism: Roughness Enhances Initial Fouling Rate
Proposing a Mechanism: Roughness Enhances Initial Particle Deposition
Concluding Remarks
Email: menachem.elimelech@yale.edu
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