TreaTech’s Innovative Waste-to-Energy Process Also Destroys Recalcitrant PFAS

TreaTech’s innovative catalytic hydrothermal gasification (cHTG) process converts waste streams like agricultural wastes, chemical wastes, industrial food waste streams, and biosolids into renewable gas and clean water.
The cHTG process brings the waste into supercritical water conditions (400 °C, 250 bar) and passes the waste through a catalytic reactor that converts organic carbon molecules to a methane-rich gas.
Recent testing on a model feedstock amended with several types of per- and polyfluoroalkyl substances (PFAS) confirmed the following: PFOS, PFOA, and PFBS were destroyed >99.8% each under unoptimized conditions.
Complete destruction of these PFAS was confirmed via measurement of speciated PFAS, fluoride, and adsorbable organofluorine. A full fluorine mass balance was achieved.
The cHTG process shows excellent promise at destroying PFAS in PFAS-rich wastes, as well as wastes that incidentally contain PFAS.
TreaTech continues to optimize the cHTG process to achieve PFAS destruction in a variety of wastes.