ARFF NEWS (CONT)
After decon of the AFFF tank and associated piping was completed, the tank was refilled with clean tap water and let sit for 12 days (Phase 5). A sample was then collected from the tank and the results are shown in both Table 1 and Figure 4. The concentration of total PFAS (40 PFAS) in the rebound sample was 56 ppb while the concentration of unidentified precursors was 80 ppb. The overall PFAS concentrations in the rebound sample were significantly lower (93%) than the water sample collected from the initial tank fill (Phase 1, single water rinse).
About the Author: Dr. Wang is Enspired Solutions’ co-founder and Chief Technology Officer. She has a background in both chemical engineering
and business with a PhD in chemical engineering and an MBA. In addition, she has more than 10 years of experience and leadership in developing environmental innovation projects. Her dual background provides an in-depth understanding of the interface between the unique chemistry of PFAS destruction and business operations.
Figure 4 – PFAS fingerprint graphs for single water rinse sample (Phase 1) and 12-day rebound sample (Phase 5) for primary AFFF tank .
HEAT UP YOUR TRAINING WITH OUR ARFF PROGRAMS
The ARFF Training Alliance is proud to offer two Professional Designation Programs designed to enhance the knowledge and career ambitions of Aircraft Rescue Firefighters, regardless of rank.
Overall, this case study demonstrated an improved setup for decon of PFAS-impacted firefighting systems. PFAS cleanout and destruction were combined to occur simultaneously on site, maximizing PFAS desorption from system interior surfaces, minimizing waste volume and potential for rebound, and leaving zero waste on site after project completion. Acknowledgements Thank you to our project partners: Department of Defense, Environmental Security Technology Certification Program, and Tyndall Airforce Base Silver Flag Team.
Airport Fire Officer (A.F.O.)
Airport Master Firefighter (A.M.F.)
AMF
AFO
Visit aaae.org/arff for more information and to enroll.
NOW ON DIGICAST! ARFF 139.319 RECURRENT TRAINING SERIES Designed to help Certificated Airports ARFF personnel meet the requirements of Federal Aviation Regulations Part 139.319, Operational Requirements, this new training includes 11 modules that focus on the training mandated by FAA.
ANTNDIGICAST.COM
ARFF NEWS | MAY- JUNE 2025 15
Made with FlippingBook flipbook maker