Patent ID: 11945014
Assignee: NEW JERSEY INSTITUTE OF TECHNOLOGY
Field: Chemical engineering (Chemistry)
Classification: CPC B  G | IPC B

Claim 0:
1. A method for remediating contaminated solid particles, the method comprising:
receiving the contaminated solid particles and a cleaning liquid in an interior volume of a chamber through a fluid inlet formed in the chamber, wherein the chamber includes an ultrasonic rack positioned in the interior volume and wherein at least two baffle walls extend from the ultrasonic rack;
remediating the contaminated solid particles by (i) energizing a first type of ultrasonic device at a first frequency in the interior volume, the first type of ultrasonic device emitting ultrasonic energy at the first frequency to mix the liquid with the contaminated solid particles and to mechanically detach or ultrasonically desorb contaminates from the contaminated solid particles, wherein the first type of ultrasonic device is operatively coupled to the ultrasonic rack, and is positioned between but not coupled to the at least two baffle walls which extend from the ultrasonic rack; and (i) energizing a second type of ultrasonic device at a second frequency in the interior volume, the second frequency being greater than the first frequency, the second type of ultrasonic device emitting ultrasonic energy at the second frequency to initiate, via oxidation by free radicals and pyrolysis, sonochemical degradation of the contaminates that have been mechanically detached or ultrasonically desorbed from the contaminated solid particles, wherein the second type of ultrasonic device is only operatively coupled to the baffle walls; and
outputting wastewater generated by remediating the contaminated solid particles from the chamber through a fluid outlet formed in the chamber.