Link to website: https://www.ccee.ncsu.edu/people/knappe/Detlef Knappe is the S. James Ellen Distinguished Professor of Civil, Construction, and Environmental Engineering at NC State University.He received his BS, MS, and PhD degrees from the Department of Civil and Environmental Engineering at the University of Illinois at Urbana-Champaign, and he joined the NC State faculty in 1996.His work focuses understanding mechanisms and effectiveness of clean drinking water treatment processes, and overcoming the gap between Clean Water Act and the Safe Drinking Water Act by developing information about the effects of reactive and unregulated wastewater contaminants on drinking water quality and treatment

Link to website: https://www.ccee.ncsu.edu/people/knappe/Detlef Knappe is the S. James Ellen Distinguished Professor of Civil, Construction, and Environmental Engineering at NC State University.He received his BS, MS, and PhD degrees from the Department of Civil and Environmental Engineering at the University of Illinois at Urbana-Champaign, and he joined the NC State faculty in 1996.His work focuses understanding mechanisms and effectiveness of clean drinking water treatment processes, and overcoming the gap between Clean Water Act and the Safe Drinking Water Act by developing information about the effects of reactive and unregulated wastewater contaminants on drinking water quality and treatment

A little more Bio on Detlef:

He is the Deputy Director of NC State’s Superfund Center for Environmental and Health Effects of per- and polyfluoroalkyl substances (PFAS)Mission: The mission of this cross-disciplinary Center is to advance research, technology development, training and community engagement about exposure to a class of ubiquitous environmental compounds known as per- and polyfluoroalkyl substances (PFAS). The long-term objectives are to assess PFAS 1) exposure in impacted areas, 2) toxicity and underlying mechanisms of thyroid and immune function, 3) bioaccumulation potential, and 4) remediation

EPA now has >10,0000 chemicals on their PFAS list

Recording of todays talk will be posted on our website at https://memcare.sph.harvard.edu/memcare-src-speaker-series

is # on PFAS list ">10,0000" supposed to be >10,000 or >100,000?

10,000 - actually someone told me it's close to 12,000

Link to website: https://www.ccee.ncsu.edu/people/knappe/Detlef Knappe is the S. James Ellen Distinguished Professor of Civil, Construction, and Environmental Engineering at NC State University.He received his BS, MS, and PhD degrees from the Department of Civil and Environmental Engineering at the University of Illinois at Urbana-Champaign, and he joined the NC State faculty in 1996.His work focuses understanding mechanisms and effectiveness of clean drinking water treatment processes, and overcoming the gap between Clean Water Act and the Safe Drinking Water Act by developing information about the effects of reactive and unregulated wastewater contaminants on drinking water quality and treatment

If health values are so low (e.g., 1 ppt), doesn't a filter removing 98% of the PFAS still leave carcinogenic levels in the water > 1ppt, even RO systems? Can you address implications?

If RO was used in public water systems

How would cost of adding treatment systems to community water supplies compare with providing all home with the best under-the-sink filters?

Sorry, do you think your research supports the incorporation of RO in public water systems? Given the demand is that an option.

Thanks, Detlef!

Thank you