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Analysis And Modeling Of Ultrasound To Decontaminate Heavy Metals In Dredged Sediments, Ruvini Perera
Analysis And Modeling Of Ultrasound To Decontaminate Heavy Metals In Dredged Sediments, Ruvini Perera
Theses
Sediments contaminated with heavy metals due to past disposal practices threatens the environment and requires remediation. This research is an attempt to develop a technology to decontaminate heavy metals in the dredged sediments with an integrated set of processes using ultrasound. Acoustic cavitation caused by ultrasound energy can be used to remove chromium from the sediments. Two coupled processes were used to treat both coarse (Process#1) and fine (Process#2) fractions of the sediments. Full factorial experimental designs were carried out to evaluate the treatment technique and to statistically model and optimize the processes. The model for Process#1 had four contributing …