Mechanistic understanding of membrane fouling and mitigation

Event Date/Time: 
February 21, 2018 - 4:00pm
Event Location: 
3540 Engineering
Jai Wei Chew, Assistant Professor, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore


Because membrane fouling remains the Achilles’ heel of membrane-based filtration, studies related to improving understandings of the fouling behavior and correspondingly advancing means of fouling mitigation are widespread. One of the focus of our group is on enhancing mechanistic understandings on the deposition and mitigation of particulate foulants in microfiltration processes. Regarding deposition, this talk will present relationships between the extent of fouling and effects of bidisperse particulate foulant size distributions, particle-membrane interactions and oil emulsion stabilized by various surfactants. As for fouling mitigation, the relationship between particle fluidization hydrodynamics and extent of fouling mitigation will be presented, along with the novel means conceived such as flowfield mitigation of membrane fouling (FMMF) and inverse fluidized bed (IFB).