James Johnson and Danielle Nachman in APL’s PFAS research laboratory.

Eliminating Forever Chemicals

Our Contribution

A Clean, Cost-Effective Method to Eliminate PFAS in Water

PFAS, or perfluoroalkyl and polyfluoroalkyl substances, are a group of some 5,000 artificial chemicals commonly found in water, household items, food packaging, firefighting foams, and a plethora of other industrial applications. They’re also, consequently, found in wildlife and human beings. Their tendency to linger indefinitely in the environment without degrading has earned PFAS the label “forever chemicals.”

The Environmental Protection Agency has declared PFAS an urgent public health and environmental issue facing communities across the United States. Scientists from Johns Hopkins APL are developing several technologies to capture and destroy these “forever chemicals.”

The APL team has demonstrated an enhanced filtration technique to capture PFAS and an ecofriendly way to destroy them. Together with a previously published electrochemical destruction technique and work focused on developing PFAS replacements, APL is building a portfolio of technologies aiming to enable full PFAS remediation.

Related Publications

Remediation of Per- and Polyfluoroalkyl Contaminated Materials
Zhiyong Xia, James Johnson, Jesse Ko, et al.
US Patent No. 20230001251-A1 (pending), Jan. 5, 2023

Removing Forever Chemicals via Amphiphilic Functionalized Membranes
James Johnson, K. Michael Salerno, Danielle R. Schlesinger, et al.
npj Clean Water, vol. 5, no. 55, 2022, doi:10.1038/s41545-022-00193-y

Destruction of Per/Poly-Fluorinated Alkyl Substances by Magnetite Nanoparticle-Catalyzed UV-Fenton Reaction
Danielle R. Schlesinger, Collin McDermott, Nam Le, et al.
Environ. Sci.: Water Res. Technol., vol. 8, pp. 2732–2743, 2022, doi:10.1039/D2EW00058J

Novel Niobium-Doped Titanium Oxide Towards Electrochemical Destruction of Forever Chemicals
Jesse Ko, Nam Le, Danielle Schlesinger, et al.
Scientific Reports, vol. 11, 2021, doi:10.1038/s41598-021-97596-7

Watch

The most popular PFAS destruction method used commercially today is incineration, which requires extremely high temperatures and high-energy input, is expensive and can release PFAS compounds back into the environment. APL’s destruction methods are designed to operate at or near room temperature, without the use of harsh chemicals or environments.

Leslie Hamilton Assistant Program Manager, Science of Extreme and Multifunctional Materials
Leslie Hamilton

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