2. Applications

2.1 Case study 1: management of multi-contaminated soils using phytotechnologies

A gas company wanted to study the return of nature and biodiversity to their operational industrial site, in order to improve the quality of life for users. The study site, covering an area of 2.5 hectares, had previously hosted a chemical gas purification activity involving the extraction of sulfur and nitrogen compounds by washing, resulting in the production of by-products (cyanogens, tars). In addition, the site was historically backfilled with iron and steel slag. Following a previous environmental diagnosis and the elaboration of a development plan envisaged by the gas company, the objectives were to carry out :

• a theoretical feasibility study of pollution...