You're Invited!

Join us for the W5170 Research Updates webinar on Tuesday, November 18 at 12 p.m. ET

Registration by visiting: https://maba.memberclicks.net/nov182025webinar#/

COST:
Member: $25
Nonmember: $50

Moderator: Lynne Moss, Black & Veatch

Presentation 1: PFAS analysis in WRRF samples- Challenges and Opportunities
Summary: Per and polyfluoroalkyl substances (PFAS) in our wastes that eventually reaches our water resource recovery facilities (WRRFs). Because of the unique characteristics of PFAS and the constantly changing physiochemical conditions across the treatment processes, it is challenging to identify critical sampling locations and appropriate sampling methods. Additionally, the analytical challenges are numerous depending on the complexity of the samples. This presentation will provide insights from a researcher’s point of view on sampling, analysis and data interpretation of PFAS in WRRFs, including the challenges and opportunities. Deepening our understanding of PFAS occurrence and transformation in WRRFs will help evaluate removal possibilities, guide process optimization, and support regulatory and management efforts to minimize PFAS exposure and environmental release.
Speaker: Caroline Rose Alukkal, Ph.D
 
Presentation 2: Biosolids Risk Assessment: Do We Have What We Need?
Summary: This talk will describe what risk assessments are and how they are formulated for biosolids amendment to soil. It will also go over how one can determine the highest priority chemical contaminants in biosolids (PFAS and beyond). Lastly, it will provide an evaluation and potential implications of the USEPA draft biosolids risk assessment for PFOA and PFOS.
Speaker: Drew McAvoy, Ph.D
 
Presentation 3:Bioavailability-based Sustainable Strategies for Risk Reduction of Lead in Urban Soils
Summary: Ingestion of soil and dust is a significant exposure pathway of contaminants for children. There is overwhelming consensus in the scientific community that the total concentration of contaminants in soil is not a strong indicator of their bioavailability or toxicity to humans. However, research is lacking in quantifying reductions in bioavailability in field-amended urban soils. This talk will focus on discussing results from on-going field studies in Kansas City to assess the effectiveness of in situ stabilization treatments, including locally available Class A biosolids, for reducing lead bioaccessibility in urban soils.
Speaker: Ganga M. Hettiarachchi, Ph.D

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