Remediation of soils contaminated with total petroleum hydrocarbons through soil washing with surfactant solutions.

Soil fulfils vital functions for life on Earth and so, just like water and air, its protection from all sources of contamination is a major concern. However, the extensive use of petroleum derived products, either as energy sources or as commodities, leads to important environmental liabilities. soil washing is a technology to concentrate contaminants, allowing soil cleaning and the reuse of extracted petroleum derived products.