Michigan Technological University Environmental Engineering Seminar October 14, 2013 Chemistry of Free Radicals from Scientific Understanding to Engineering Application Presented by Daisuke Minakata Assistant Professor Department of Civil and Environmental Engineering Michigan Technological University Abstract: Free radical induced reactions are ubiquitous in biological systems, natural environments and engineered systems. Over the past decades, researchers have studied the biological cell damages from reactive oxygen species, the fate of atmospheric contaminants and aerosols through numerous radical species, photolysis in the surface waters, and the aqueous phase radical-involved reaction mechanisms for the chemical oxidation of water and wastewater. This talk focuses on the aqueous phase radical-involved reactions that are applied for the removal of surrogate organics and contaminants in engineered system. I will discuss reaction pathway and associated reaction rate constants based on our past experimental and theoretical studies. I will also address implications and applications for sustainable water treatment and energy harvesting technologies.