Toward Standardized Evaluation of PFAS Sorbents

Area of Science:

• Environmental Science
• Materials Science
• Chemical Engineering

Background:

• Per- and polyfluoroalkyl substances (PFAS) are persistent environmental contaminants with widespread health and environmental risks.
• Sorbent-based technologies show promise for PFAS removal, but progress is hindered by inconsistent experimental reporting.

Purpose of the Study:

• To present a structured framework for comprehensive characterization and reporting of new PFAS sorbents.
• To promote consistency, transparency, and comparability across studies on PFAS removal.

Main Methods:

• The proposed framework outlines three essential domains for experimental evaluation: sorbent characterization, water matrix and PFAS details, and sorption/regeneration performance.
• Includes guidelines for flow-through packed-bed evaluations at bench and pilot scales.

Main Results:

• The framework provides general guidelines to ensure thoroughness and standardization in reporting PFAS sorbent performance.
• Aims to enable rigorous cross-study comparisons and accelerate the development of effective PFAS removal solutions.

Conclusions:

• Implementing this standardized reporting framework is crucial for advancing PFAS sorbent research.
• Facilitates the development and adoption of effective technologies for mitigating PFAS contamination.