Expermental design approach for the optimization of supercritical fluid extraction of pyralene and aldrin in soil matrix

摘要

Characterisation and remediation of contaminated soils are crucial issues in environmental control. Extraction of pollutants with supercritical fluids is a competitive and viable technique on a laboratory scale and is of great interest for the treatment of contami ated soils in the future. Extraction by supercritical fludis (CO_2 or modified CO_2) has been carried out on a standard soil (EUROSOIL 1), aritificially polluted by organochloride compounds, i.e. pyralene and aldrin.