Ion Exchange Membranes and Fibers as Passive Samplers for Chemically-Diverse PFAS
Abstract
The overall goal of this project was to develop ion-exchange membrane and fiber strategies for passive sampling of chemically diverse PFAS. The project was developed to address DoDs needs with respect to measurement and remediation of PFAS. The specific objectives were as follows: (1) develop ion-exchange membrane and fiber passive samplers capable of concentrating short- and long-chain PFAS with varying log D values; (2) establish selectivity coefficients for 19 PFAS of concern in the ion exchange-based samplers to quantitatively describe PFAS uptake and partitioning; (3) confirm that the ion-exchange materials are capable of effective deployment and performance in synthetic and real groundwater and surface water matrices; (4) investigate ion exchange-based passive samplers for cationic, zwitterionic, and anionic PFAS; (5) ensure consistent performance of the samplers in single- and multi-sorbate scenarios; (6) characterize effects of solution pH, ionic strength, background ions, temperature, and dissolved organic matter on the passive samplers; and, (7) deploy the passive samplers in laboratory based mesocosms to confirm their ability to resolve spatiotemporal variations in PFAS concentration.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 2021
- Accession Number
- AD1187007
Entities
People
- Ke He
- Lee Blaney
Organizations
- University of Maryland, Baltimore County