BROWNFIELD SITE REMEDIATION AND SOIL TREATMENT - City of Montreal, Canada
A joint venture of ART and Cintec Environnement, Inc. performed full-scale soil treatment on soils from various brownfield sites throughout the City of Montreal. Brownfields are potentially contaminated industrial or commercial urban properties that have been abandoned or underutilized, but are suitable for redevelopment to help restore economic vitality to a community. Cintec is located in Montreal, and owns and operates various remediation capabilities, including thermal treatment units and a permitted contaminated soil landfill in the eastern provinces of Canada. This project combined the soil treatment capability of ART with the disposal services of Cintec.
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Soil Staging & Feeding |
Soil Treatment Plant |
Clean Soil |
The soils were contaminated principally with copper, lead and zinc, with lower levels of oil, grease and Polynuclear Aromatic Hydrocarbons (PAH), and originated from a former industrial sector of Montreal. Remediation of these soils is part of a program funded by the City of Montreal in cooperation with the Province of Québec, Ministry of the Environment, to remediate government-owned sites, while developing technologies that will assist in effectively returning impacted properties to productive use. A 30 tons-per-hour plant was mobilized to the site in November 1995 and erected inside an existing factory building. Shakedown was completed in January 1996, and full-scale operations began the same month.
Soils from seven sites throughout the city were excavated, pre-screened in the field, transported, and stockpiled inside the building. Prior to treatment, treatability studies were performed on soils from each site to determine the appropriate treatment train. Soils from each site were remediated individually, and after confirmation of reaching cleanup criteria, were returned to the originating site as backfill. Contaminated residuals from the operation were disposed in the Cintec landfill. Some site soils which were above the remediation criteria, and not feasible for treatment by soil washing, were disposed directly at the Cintec landfill.
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