Charles Schaefer

Affiliation

CDM Smith

Track

A1. Innovative Treatment Technologies for PFAS In Situ (Platforms), A2. Managing PFAS in Biosolids: Exploring Detection, Fate, and Bioremediation Potential in Wastewater Treatment Plants (Platforms), A4. Activated Carbon-Based PFAS Treatment Technologies (Platforms), C3. Emerging Contaminants: Detection, Degradation, Fate and Transport (Posters), D5. Bioremediation Approaches for the Innovative Management of Large or Dilute Plumes (Posters), E2. In Situ PFAS Treatment Approaches (Poster), E7. PFAS and Bugs: The Search Continues (Poster), I4. PFAS Fate and Transport Properties (Poster)

Biography

Dr. Charles Schaefer is the Director of CDM Smith’s Research & Testing Laboratory in Bellevue, WA. He received his PhD in chemical & biochemical engineering from Rutgers University, and has over 25 years of experience in the fate, transport, and treatment of organic contaminants in groundwater, soil, wastewater, and biosolids. Dr. Schaefer has served as a principal or co-principal investigator for several research projects funded through the US Department of Defense and the Water Research Foundation, and has served as the technical lead on several site investigation and remediation efforts.

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Showing 1 - 17 of 17
Column Testing to Assess PFAS Removal Using Various Treatment Media: Lessons Learned and Practical Engineering Considerations

Dung Nguyen & Charles Schaefer

13th International Conference on Remediation of Chlorinated and Recalcitrant Compounds

Publication Year: 2024

Part of: I1.: Ex Situ PFAS Water Treatment Technologies (Platform)

Abstract
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(Group 2, Poster Board #87) Exploring Biostimulation of (ital)Acidimicrobium sp. Strain A6 in Selected PFAS-Impacted Sediments for PFAS Degradation

Peter Jaffe; Shan Huang; Matthew Sima; Jinhee Park; Chiara Smorada & Charles Schaefer

13th International Conference on Remediation of Chlorinated and Recalcitrant Compounds

Publication Year: 2024

Part of: E7.: PFAS and Bugs: The Search Continues (Poster)

Abstract
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(Group 2, Poster Board #238) Validation of a Cell-Based Screening Model for Assessing PFAS Mass Flux from the Vadose Zone to Groundwater

John Stults; Charles Schaefer; Tamzen Macbeth & Dung Nguyen

13th International Conference on Remediation of Chlorinated and Recalcitrant Compounds

Publication Year: 2024

Part of: I4.: PFAS Fate and Transport Properties (Poster)

Abstract
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Bench-Scale Testing Colloidal Activated Carbon (CAC) Amendments for PFAS Immobilization under Realistic Site Conditions

John Stults; Charles Schaefer; Bridget Ulrich; Elizabeth Ziegelmeyer & Amber McRae

2025 Bioremediation Symposium

Publication Year: 2025

Part of: A4.: Activated Carbon-Based PFAS Treatment Technologies (Platforms)

Abstract
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1 Downloads
(Group 2, Poster Board #55) High-Permeability Zone Volume Fraction and First-Order Rate Constant Effects on 1,4-Dioxane Degradation in Simulated Aquifer-Aquitard Systems

Juan Jose Romero Conde; David Freedman; Paul Hatzinger & Charles Schaefer

2025 Bioremediation Symposium

Publication Year: 2025

Part of: D5.: Bioremediation Approaches for the Innovative Management of Large or Dilute Plumes (Posters)

Abstract
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1 Downloads