Best Practices for Experimental Design, Testing, and Reporting of Aqueous PFAS-Degrading Technologies

Area of Science:

• Environmental Chemistry
• Chemical Engineering
• Environmental Science

Background:

• Growing concern over per- and polyfluoroalkyl substances (PFAS) contamination necessitates effective zero-pollution treatment solutions.
• Current methods for assessing PFAS destruction technologies lack standardization, hindering innovation comparison and potential evaluation.
• Challenges exist in lab-scale research and development of aqueous PFAS destruction, particularly with chemical methods.

Purpose of the Study:

• To identify and address hurdles in lab-scale research and development of aqueous PFAS destruction technologies.
• To provide recommendations and best practices for developing robust laboratory protocols for PFAS treatment studies.
• To propose five criteria for standardizing the reporting of performance and advancements in PFAS degrading technologies.

Main Methods:

• Review of existing challenges in lab-scale PFAS destruction technology development.
• Development of best practices for PFAS laboratory protocols, including experimental design, sample handling, and waste management.
• Proposal of five standardized criteria for reporting technology performance: scope, defluorination efficiency, energy consumption, material stability, and unit process considerations.

Main Results:

• Identification of critical aspects for robust PFAS laboratory protocols.
• Establishment of a framework with five criteria to standardize the reporting of PFAS treatment technology performance.
• Recommendations for overcoming common hurdles in the development of chemical PFAS destruction methods.

Conclusions:

• Standardized protocols and reporting criteria are essential for advancing the development of effective aqueous PFAS destruction technologies.
• Implementing best practices in lab-scale research will improve reproducibility and comparability of PFAS treatment innovations.
• The proposed criteria aim to foster systematic progress and facilitate the assessment of emerging PFAS remediation solutions.