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Emerging Contaminants Summit
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Emerging Contaminants Summit
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Karl Linden Karl G. Linden
Professor of Environmental Engineering
University of Colorado Boulder

Karl G. Linden is a Professor of Environmental Engineering and the Mortenson Professor in Sustainable Development at the University of Colorado Boulder, USA. He has a BS from Cornell University in Agricultural and Biological Engineering and an MS and PhD from University of California at Davis in Environmental Engineering. He teaches classes on Sustainable Water Reuse, Water and Wastewater Treatment, and Water and Sanitation in Developing Countries. Dr. Linden’s research investigates novel water and wastewater treatment systems, including advanced and innovative UV systems; the efficacy of UV and ozone disinfection for inactivation of pathogens; the use of UV and advanced oxidation processes for the degradation of organic and other emerging contaminants in water and wastewater; and sustainable implementation of water and sanitation technologies in developing countries. He is Director of the CU Boulder College of Engineering Water-Energy Nexus Interdisciplinary Research Thrust, has authored over 180 peer-reviewed publications, and is PI on a 5 year USAID funded Sustainable WASH Systems Learning Partnership. Dr. Linden is a consultant to the World Health Organization for revising the Guidelines for Drinking Water Quality and a member of the WHO Water Quality Technical Advisory Group. He served as Trustee of the Water Science and Research Division of the AWWA and is a Board member and 2019-2020 President of the Association of Environmental Engineering and Science Professors (AEESP). He was 2013-2015 President of the International Ultraviolet Association (IUVA), was named a 2013-2014 Fellow of the Australian Water Recycling Centre of Excellence, received the 2013 Pioneer Award in Disinfection and Public Health from the Water Environment Federation and was WateReuse Association’s 2014 WateReuse Person of the Year. Dr. Linden is the recipient of the 2019 AEESP Walter J Weber Jr. Frontier in Research Award and the 2019 Water Research Foundation Dr. Pankaj Parekh Research Innovation Award.



SESSION KEYNOTE

Innovations in Advanced Oxidation to Control Emerging Contaminants in Wastewater Effluent

Emerging contaminants in wastewater are a primary source of contamination into natural water bodies and could affect downstream drinking water source quality. While wastewater treatment plants are not traditionally designed to remove these modern water contaminants, the compaction of our urban water cycle requires better approaches to treating these contaminants before they get cycled into the environment. Advanced oxidation processes have been successfully used to transform contaminants of concern in affected ground waters and as part of advanced water treatment for surface waters. Application to wastewater effluents has been limited due to inherent high rates of radical scavenging and limitations in UV light penetration. By tailoring upstream treatment strategies, adding in targeted tertiary treatment approaches, or considering possible in-situ oxidation processes such as photolysis of native nitrate, advanced oxidation can be utilized for wastewaters to effectively degrade contaminants of emerging concern. Recent results from bench and pilot scale studies will highlight the emerging possibilities for AOP-based control of contaminants in wastewater effluents.


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