INERTEC - - Solétanche Bachy Group services

To develop tomorrow’s technical solutions, INERTEC undertakes Research and Development activities in various fields, by itself or through partnerships with research organisations.

Stabilisation and solidification processes: General treatment principles. Stabilisation/solidification treatments aim to improve pollutant retention and give the material obtained a certain structural durability. Their objective is thus not to achieve a simple cladding of the contaminated material in an inert matrix, but a complex physical-chemical process to obtain stabilization and solidification of the pollutants. The processes most generally studied by INERTEC are hydraulic binder based processes, due to their ease of implementation (cold process, without gaseous emissions or liquid wastes) and their adaptability to variations in wastes.

A Hazardous Waste Landfill Facility is an installation disposing of hazardous wastes by deposit or burying on or in the ground. The geological and hydrogeological context of the landfill facility must constitute a passive safety barrier. The site is arranged so that this barrier will not be used. Drainage provision including a geomembrane at its base constitutes an active safety level.

Petroleum sites are important waste generators. Certain management methods used in the past have generally led to the formation of lagoons filled with hydrocarbon wastes, which have in their turn contaminated the soil and sometimes the underground water table. INERTEC offers technical and economic solutions to industrial companies that are responsible for this type of waste: Our engineers have developed a special in situ treatment method for mud pits. The treatment procedure is based on a stabilization/solidification reaction allowing the hydrocarbon pollution to be immobilized in a solid, chemically stable matrix. The originality arises from the fact that the reactants used are injected and mixed into the soil. Consequently the operation requires neither excavation of the soil in place, nor replacing treated soil, not use of an external treatment route.