Wet cleaning method for contaminated soil and wet cleaning system for contaminated soil

摘要

PROBLEM TO BE SOLVED: To provide a wet cleaning method for contaminated soil and a wet cleaning system for contaminated soil, which can clean PFOS / PFOA in soil at a realistic cost and can clean local soil contamination with a small-scale facility. To do. A method for wet cleaning soil contaminated with a pollutant containing at least one of PFOS and PFOA-related compounds, wherein the contaminated soil is separated into clean gravel and contaminated mud, and predetermined grains are added to the contaminated mud. A method for wet cleaning contaminated soil, which comprises a step of mixing an adsorbent having a larger diameter, a step of separating the fine particles in the contaminated mud from the adsorbent, and a step of heat-treating the adsorbent. [Selection diagram] Fig. 1