| 摘要 |
<p>A process for the decontamination of materials (1) such as soil, sediments, and sludges contaminated with organic contaminants such as PCB's. The process comprises the steps of separating the material (1) into a solid fraction (3) and a liquid fraction (4) when liquid is present, leaching the solid fraction (3) with a leaching solvent to obtain contaminated leaching solvent (7) and a mixture of decontaminated solids and leaching solvent (6), and stripping the contaminant from the contaminated leaching solvent (7) with a stripping solvent to concentrate the contaminants. When liquid is present in the material, residual contaminants from the liquid fraction (4) are adsorbed onto decontaminated solids (16) to produce decontaminated liquids (17) and contaminated solids.</p> |
