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Abstract

An apparatus for washing and decontaminating soils includes a high-pressure microbubble generation module, a coarse grain heterogeneous separation module, an ultrasonic shock module, and a fine grain heterogeneous separation module. The high-pressure microbubble generation module generates first microbubbles, and uses a first shock energy generated when the first microbubbles burst to remove an oil contaminant on coarse grain soils. The coarse grain heterogeneous separation module uses the difference in density to separate the oil contaminant and the coarse grain soils from a soil and water mixture. The ultrasonic shock module generates second microbubbles and performs an ultrasonic shock operation to increase a second shock energy generated when the second microbubbles burst to remove another oil contaminant on fine grain soils. The fine grain heterogeneous separation module uses the difference in density to separate the another oil contaminant and the fine grain soils from the soil and water mixture.

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First Claim