Permeable reactive barrier with nitrate-releasing briquettes: Design, installation and hydraulic performance

An experimental permeable reactive barrier was designed and installed at Canadian Forces Base Borden to remediate a shallow petroleum hydrocarbon plume emanating from the former site of a gasoline refilling station. The reactive material used in the permeable reactive barrier is nitrate releasing concrete briquettes. The briquettes are designed to provide a long term source of nitrate to stimulate anaerobic denitrification of the contaminants.; The first objective was the design and installation of the experimental permeable reactive barrier and a monitoring network. The second objective was the assessment of the hydraulic performance of the system. The final objective was the evaluation of the biodegradation potential in the system.; The second phase of this research, already in progress, will further investigate the biodegradation potential in the system as well as confirm the hydraulic data obtained in this phase. (Abstract shortened by UMI.)...