Dechlored : development and in situ implementation of a chemical process for the reductive dechlorination od chlorinated solvents in polluted groundwater

Ioannis Ignatiadis (1) , Stéphanie Betelu (1) , Stéfan Colombano (1) , Céline Noel (1) , Apolline Simon (2) , Patrick Epardeau (3) , Guillaume Prevot (4) , Roland Marion (5)

1 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
2 Sols & Environnement,
3 BREZILLON, Sols & Environnement,
4 SILEX INTERNATIONAL
5 ADEME - Agence de l'Environnement et de la Maîtrise de l'Energie

This study is accomplished within the framework of DECHLORED, a project financed by ADEME, the French Agency for the Environment and Energy Resources (Eco-Industries 2011 program). This project aims to : i) develop and prove the efficiency of a novel in situ chemical reductive dechlorination (RDC) process of chlorinated solvents (CSs) in polluted aquifers by using strong reducers (Sodium Dithionite, DT) with or not the combined effect of Nano-sized zero-valent iron particles (NZVI), and ii) illuminate, by an improved monitoring, the field under RDC process. The purpose of the present communication is to present the work accomplished to set up an enhanced procedure for the reductive dechlorination of CSs in polluted aquifers and performed not only in batch and column experiments but also as in situ demonstration.

Mots clés: Reductive dechlorination; Chlorinated solvents; Perchloroethylene; PCE; nano-sized zero-valent iron; Chemical Treatment; Sodium dithionite; monitoring; polluted soils

Domaines: Sciences de l'environnement

Ioannis Ignatiadis, Stéphanie Betelu, Stéfan Colombano, Céline Noel, Apolline Simon, et al.. Dechlored : development and in situ implementation of a chemical process for the reductive dechlorination od chlorinated solvents in polluted groundwater. Intersol 2014, Mar 2014, Lille, France. pp.n/a. ⟨hal-00952948⟩