Edited by Nora Savage Offce of Research and Development, US Environmental Protection Agency and (in alphabetical order) Mamadou Diallo Materials and Process Simulation Center, Division of Chemistry and Chemical Engineering, California Institute of Technology Jeremiah Duncan Nanoscale Science and Engineering Center, University of Wisconsin-Madison Anita Street Offce of Research and Development, US Environmental Protection Agency and Richard Sustich Center of Advanced Materials for the Purifcation of Water with Systems, University of Illinois at Urbana-Champaign Norwich, NY, USA NANOTECHNOLOGY APPLICATIONS FOR CLEAN WATER