The weekly seminar series organized by CNT and the Molecular Engineering and Sciences Institute provides a forum for bringing national and international leaders in nanoscale science and technology to campus, and for graduate students enrolled in our Dual Ph.D. program in Nanotechnology to present their research.
All seminars are held on Tuesdays from 2:30 to 3:20 PM in Johnson Hall Room 102 (North end of building and across from MolE).
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Environmental Nanotechnology: From Nanoprospecting to Global Descriptors for Environmental Modeling
Prof. Paul Westerhoff, Arizona State University - Engineering Center
Assoc.Prof. Jonathan Posner, Dept. of Mechanical Engineering
Engineered nanomaterials are entering the environment and their discharge will increase in the future. This presentation uses advanced analytical methodologies to explore the current occurrence of engineered nanomaterials across their life cycle from the point of synthesis, through products, intosewage, through wastewater treatment and into soils where biosolids were applied. In addition to identifying "known" nanomaterials (e.g., TiO2, CeO, Ag) we "prospect" for other nanomaterials across this lifecycle to understand "what else is out there". Then the presentation shifts to contrast fate and modeling approaches for other pollutants (metals, non-polar organics, etc) towards engineered nanomaterials. Some modeling approaches are empirical while others have thermodynamic justifications. The presentation will attempt to focus on thermodynamic justifications for what type of models could be used to predict the environmental fate and transport of engineered nanomaterials across their life cycle.
Copyright © 2012 The Center for Nanotechnology at the University of Washington