Coupled high and low-frequency ultrasound systems and methods for remediation of contaminated solids
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United States of America Patent
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Apr 2, 2024
Grant Date -
Jul 29, 2021
app pub date -
Jan 21, 2021
filing date -
Jan 24, 2020
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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.
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