Experimental Study Of Ultrasonic Remediation Of Crude-oil Contaminated Soil

Petroleum-contaminated soil has caused serious environmental damages and introduced a number of ecological and human health concerns.In this paper,a series of laboratory experiments were conducted to examine the effects of ultrasound on the remediation of petroleum-contaminated soil.A number of factors were investigated to find the optimal remedial treatment conditions.The experiment results would help explore the pollutants removal mechanism.The results show that the cleanup effect of ultrasound for soil contaminated by crude oil was obvious.Soil type had a significant effect on the TPH removal in soil.Ultrasonic treatment is not selectively reducing certain components of the crude oil.The experimental results suggest that ultrasonic desorption and subsequent filtration are the dominant mechanism for TPH reduction in the soil.The ultrasonic remediation of petroleum-contaminated soil is feasible and effective.