DIOXINS-CONTAMINATED SOIL WASHING AND TREATING SYSTEM, AND WASHING AND TREATING METHOD

摘要

To provide a dioxins-contaminated soil washing and treating system and a washing and treating method that can increase the removal percentage of dioxins from dioxins-contaminated soil.SOLUTION: Provided is a dioxins-contaminated soil washing and treating system 1 including: a classifier 10 for obtaining a sand fraction S4 having an arbitrary particle size range from a dioxins-contaminated soil S0 containing dioxins; a detaching and washing device 20 for detaching the dioxins from the particle surface of the sand fraction S4; and a removal device 30 for generating bubbles in the presence of a water containing a flotation agent, attaching the detached dioxins to the bubbles to form a floss F, and removing the floss F.SELECTED DRAWING: Figure 1