Abstract: Systems and methods to remediate, degrade, and/or remove pollutants within various contaminated environmental solid media that includes contaminated soils and sediments, biosolids and slurries by subjecting a mixture of the contaminated solids and a liquid to acoustic cavitation generated by more than one type of ultrasonic device. One of the ultrasonic devices operates at a low frequency and the other ultrasonic device operates at a high frequency. The system advantageously provide an efficient, sustainable, and easy to handle approach to degrade contaminant, requiring only electrical energy.

Abstract: A treatment method and system using high-frequency ultrasound for treating a waste stream containing per- and polyfluoroalkyl substance (PFAS) is disclosed. The system has one or more reactors including one or more transducers configured to operating at one or more frequencies to destroy or mineralize the per- and polyfluoroalkyl substances (PFAS) in the waste stream using sonolysis.

Abstract: Systems and methods to remediate, degrade, and/or remove pollutants within various contaminated environmental solid media that includes contaminated soils and sediments, biosolids and slurries by subjecting a mixture of the contaminated solids and a liquid to acoustic cavitation generated by more than one type of ultrasonic device. One of the ultrasonic devices operates at a low frequency and the other ultrasonic device operates at a high frequency.