HiPOx advanced oxidation of TBA and MTBE in grounwater

Abstract

This paper presents results from several pilot studies and full-scale remediation sites in which an Advanced Oxidation Process (ozone/hydrogen peroxide) was used to remove TBA and MTBE from contaminated groundwater. The concentration of TBA in the groundwater at the various sites ranged from 29 μg/L to 4,800 μg/L. The MTBE concentrations ranged from 42 to 110,000 μg/L The sites include abandoned gas stations, active gas stations and gasoline terminals located in California, Nevada and New Jersey. At the full-scale remediation sites, the flow of contaminated water treated ranged from 5 to 60 gallons per minute (gpm). While discharge requirements vary from site to site, we have demonstrated that the TBA and MTBE concentrations can be reduced to less than each site's respective detection limits. Pilot work at each site allowed for the development of an empirical model to determine the concentrations of ozone and hydrogen peroxide demanded to meet the TBA and MTBE discharge requirements. Comparisons between the pilot study results and the full-scale remediation site results demonstrate the scalability of this process. © 2005 Springer Science + Business Media, Inc.