Novel organic material for PFAS removal

OTT#1725

Applications

Water and Wastewater Treatment, Point-of-Use Water Filtration, Filtration Media, Point-of-Entry Water Filtration, and PFAS Remediation or Removal.

Target Problems

PFAS removal represents a special challenge for water and wastewater treatments due to their unique chemical and physical properties. Current conventional materials suffer from several drawbacks including unsatisfactory sorption capacity, low removal efficiency for short-chain and emerging PFAS, difficulty in regeneration, and lack of needed removal selectivity.

Key Features

High Efficiency – Powdered absorbed material exhibit higher absorption efficiency even at low PFAS concentrations.
High Selectivity and Sensitivity – Absorbents exhibit competitive adsorption.
Wide Applications – Absorbent can be used to remove wide spectrum of PFAS materials.

Technology

Inventors at University of Wisconsin, Milwaukee (UWM) have developed a class of novel and highly efficient powdered adsorbent materials based on layered double hydroxides (LDHs) amended with organic functionalities for the removal of a wide spectrum of PFAS materials. Absorbent materials with a range of PFAS with different chain lengths (C4 – C14) and functionalities (e.g., perfluoroalkyl acids and precursors) were tested under environmentally relevant conditions like natural source waters (i.e., surface water, groundwater) and wastewater. Adsorbent material exhibited significantly improved adsorption capacity as compared to conventional materials and high material selectivity in the mixtures of various PFAS, conventional organic pollutants (such as pesticides, pharmaceuticals and personal care products, and other persistent organic pollutants), and natural organic matter (NOM).

Intellectual Property

U.S Patent Pending

Inventors

Shangping Xu, Ph.D., Associate Professor, Department of Geosciences
Yin Wang, Ph.D., Associate Professor, Civil and Environmental Engineering

For more information contact: Smruti Patil, Ph.D., IPMM | Licensing Associate | Tel: 414-906-4657