Mr. Marley will be discussing the details associated with applying oxidants for soil and groundwater remediation during an active construction project in downtown Manhattan.  If you are planning on attending the RE3 conference, please come to the presentation or stop by and say hello.  The case study abstract: Alkaline activated persulfate (AAP) was applied beneath the active construction of a 70 story skyscraper in Manhattan, New York, New York.  The application, the largest in Manhattan at the time, successfully reduced the combined concentration of benzene, toluene, ethylbenzene, and xylene (BTEX) compounds in soil and groundwater by greater than 99 percent which has been sustained in quarterly monitoring events for a year after the application.  These results has led to the petition for site closure. The application of AAP was the result of 9 months of planning that included an evaluation of the chemical compatibility with the building substructure, bench testing multiple in situ chemical oxidation (ISCO) technologies, design and coordination with the contractors responsible for the skyscraper construction.  The highly coordinated field event included gaining street access for the on-site storage and batching of chemicals, daily modification of the injection system to accommodate construction activities, and coordination with the building contractors and various union workers.  The field event applied 72,732 lbs of sodium persulfate, 31,242 lbs of sodium hydroxide in 35,432 gals in six injection days to accommodate the construction schedule.  The injection utilized the Wavefront™ technology to aide in the distribution of reagents.

For a copy of the presentation, click on the link below:

XDD-RE3 – Application of AAP to TPH Beneath the Construction of a 32-Story High-Rise 9-15