After 2 years of design and fabrication, Redox Tech’s new In Situ Soil Blender was put to test at a construction site in Cambridge, Mass. The new soil blender, designed to provide a more powerful and efficient mode of soil blending, was used to mix 52,000lbs of ABC+ into 27,000 cubic feet of soil, targeting depths from ground surface to 15 feet bgs. The purpose of this work was to treat 1,2-dichloroethane (1,2-DCA) in soil and groundwater (concentrations between 18 and 1200ppm).
The treatment approach was performed during active construction of a new 6-story office building in a busy part of downtown Cambridge, Mass. No disruption of the on-going construction efforts was allowed. Other logistical issues included limited access and maneuverability, as well as an existing foundation wall which bounded one side of the treatment area, and a buried fiber optic cable which bounded the other side of the treatment area. Despite these work limitations, the in situ soil blending was completed on schedule over a 4 day period with no safety or performance issues. For more information please contact Jay Romano (Redox Tech NE).