General Survey of Site Clearance Techniques: Trend Towards In-Situ Treatment

Soil contamination is a problem which concerns everyone. In recent years, this has resulted in the availability of a wide range of remedial action facilities. In the future, attention will, in the main, be concentrated on optimization of existing techniques for treating excavated soil (thermal and extractive treatment methods), on improvement and development of in-situ techniques and on isolation methods which are reliable during a defined period. Recently, particular importance has been attached to the biotechnological methods which can be adopted both after excavation as well as in-situ. These trends are already apparent in the extracts which were submitted for this conference.