The petroleum contamination in soil is another pollution problem following pesticide and heavy metal in recent years.Petroleum is a kind of compound composed of alkane

cyclane and aromatics

which has the potentiality leading to cancer

deformity and mutation.The cleaning efficiency is poor in purifying natural acidic mixture consisting of crude oil and soil by routine measures

whereas sonochemical treatment has previously been shown to be an effective method to remediate soils contaminated with hydrocarbons. Sonochemical process is carried out in this research

which remediates the experimental beach fine soil contaminated with heavy oil.The effect of factors such as: slurry concentration

duration time of irradiation

slurry pH

alkaline additive and free radical reagent H2O2 on the desorption of hydrocarbon from fine salty soil

is considered.And it is proposed that solid-to-liquid mass ratio is 6∶1

working solution temperature is 20℃

irradiation time is 5 min

working solution pH is 9

alkali dosing of Na2CO3 is 0.15% at the time of using sonochemical process technique decontaminating  petroleum  hydrocarbon- contaminated fine soil of beach.In addition

it is crucial for soil processing that some essential step should be taken to eliminate the concretion

which could assist the technique with an ideal final effect.