Erik Rosenfeldt studied with Dr. Linden as a masters student from 2001-2003 and graduated with a MS in Civil and Environmental Engineering. He continued to pursue his Ph.D. with Dr. Linden from 2003-2007. During his time at the Duke he researched advanced oxidation of emerging contaminants. After graduation, he went on to work as an Assistant Professor of Civil and Environmental Engineering at the University of Massachusetts, Amherst. Currently, he is the Director of Drinking Water Process Technologies at Hazen and Sawyer.