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KMID : 1024520090180040473
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Journal of the Environmental Sciences
2009 Volume.18 No. 4 p.473 ~ p.478
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Removal Characteristics of TPHs and Heavy Metals in Contaminated Soil with Ultrasonic Washing
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Jung Byung-Gil
Ro Gi-Hyun
Sung Nak-Chang
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Abstract
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The removal characteristics of total petroleum hydrocarbons (TPHs) and heavy metals in contaminated soils with ultrasonic washing have been studied. The ultrasonic washing was evaluated on a laboratory scale. In this investigation, the effects of factors such as ultrasonic frequency, power intensity, duration of irradiation, contents of the TPHs and heavy metals and mixing ratios between the contaminated soils and water, were considered. Experimental results suggested that the rates for contaminant extraction of the TPHs and heavy metals in the contaminated soil increased considerably with the ultrasonic washing. Therefore, the ultrasonic washing has previously been to be an effective method to remediate the contaminated soils with the TPHs and heavy metals.
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KEYWORD
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Contaminated soil, Heavy metals, TPHs(total petroleum hydrocarbons), Ultrasonic washing
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