Smouldering combustion is a low-cost, energy efficient thermal technique for the treatment of contaminated soils. This approach is commercially available as the STAR (in situ) and STARx (ex-situ) technologies and has traditionally been used for the treatment of heavy hydrocarbons. For these contaminants, the smouldering reaction propagates in a self-sustaining manner following a short duration, low energy input ‘ignition event’ as the energy released from the reacting contaminants is used to pre-heat and combust contaminants in adjacent areas, provided that a sufficient flux of air is supplied.
Dave Liefl, P.Eng. (ON)
GeoPro Talks - Smouldering Combustion: Large-scale Operations at the Toronto Waterfront Project and New Advancements for the Treatment of Emerging Contaminants