#USA #Pittsburgh #Environmental Technology #Calgon Carbon #PFAS Removal

Introduction

Calgon Carbon Corporation has made a significant leap in environmental technology with its publication of a second peer-reviewed study, which focuses on the effective removal of PFAS (per- and polyfluoroalkyl substances) from spent drinking water carbon using advanced reactivation methods. The study, titled "Destruction of PFAS During Thermal Reactivation of Granular Activated Carbon Used in Potable Water Treatment," appears in the Remediation Journal, reaffirming the company's commitment to tackling PFAS pollution.

Key Findings and Results

This recent research highlights a remarkable efficiency rate of more than 99.9% in PFAS destruction during the thermal reactivation process. This accomplishment was achieved by employing Calgon Carbon's proprietary methods under realistic operating conditions. The comprehensive study demonstrated that all PFAS compounds tested were removed to non-detectable levels from the spent carbon, which represents a substantial advancement in water treatment technology.

Moreover, the study ensured that there were no detectable byproducts of incomplete combustion (PICs) or reformed PFAS emissions. Using state-of-the-art EPA test methods, it was confirmed that the reactivation process not only alleviated public health concerns but also fulfilled the requisites outlined by the EPA for PFAS management.

Background on PFAS and Its Challenges

PFAS are often referred to as "forever chemicals" due to their persistence in the environment and human body. Their use is widespread in various consumer products, which has led to nationwide contamination levels that municipalities are now addressing with urgency. Calgon Carbon's innovative approach stands apart from other treatment processes that merely shift PFAS to different waste streams or incineration, providing a sustainable, circular solution that recycles activated carbon while reducing waste.

The Process Explained

Calgon Carbon's reactivation process involves a high-temperature treatment where spent granular activated carbon (GAC) is heated in a specialized furnace. This heat breaks down the carbon-fluoride bonds that contribute to PFAS's robustness. The off-gas generated is then treated in an abatement system, designed to eliminate any remaining organic compounds, followed by neutralization of any acidic gases. Finally, particulate matter is filtered out, resulting in a reactivation process that closes the loop on carbon usage, granting economic and environmental benefits.

Broader Impacts and Future Directions

The findings of this study arrive at a critical juncture when municipalities are grappling with the EPA's newly established Maximum Contaminant Levels (MCLs) for PFAS and are in dire need of effective treatment plans. The validation of Calgon Carbon's reactivation technology could reshape the methods by which utilities manage PFAS-laden carbon, significantly lowering landfill requirements and greenhouse gas emissions compared to virgin carbon production.

Steve Schott, President and CEO of Calgon Carbon, emphasized the company's ongoing commitment to leading through innovation and scientific validation. This newly published research strengthens Calgon's standing in the global market as a pioneering force against the PFAS epidemic.

Conclusion

As the world confronts the long-lasting impact of PFAS chemicals, Calgon Carbon's proprietary reactivation process provides a ray of hope for achieving meaningful water purification goals. The company continues to expand its global infrastructure to ensure that their innovative solutions are accessible to regions afflicted by PFAS contamination. Interested stakeholders are encouraged to review the study to further comprehend the technology's implications in effectively recycling activated carbon for potable water treatment. To explore more about this initiative and the FILTRASORB product, visit NoMorePFAS.com.